bluuebunny/crossref_metadata_2025 huggingface dataset:
Employing Data Visualization of Reservoir Data for Better Understanding of a Mature Field
Authors: Madathil Asok , George Bina , Dangin Thibaut
Published: November 2017

Total has been producing oil and gas from a series of heterogeneous reservoirs offshore Abu Dhabi since 1974. This field has achieved the highest recovery factor in the region. The world class recovery factor achieved in this field was due to early application of new technologies such as ESPs, gas-lift, multi-lateral wells, field-wide tracer and state-of-the-art reservoir monitoring and well management. It is critical that the high volume of data collected from the reservoir be utilized to the maximum to better understand the field as well as to further enhance its potential.

High volume of reservoir data collected throughout the life of the mature field including saturation data, pressure data, production tests are sometimes underutilized due to lack of effective and convenient method to analyze them. By analyzing these different sources of data in a single platform, we can unlock further secrets of the reservoir which otherwise would have been unexplainable or lost. Moreover, visually representing them with proper emphasis given to type of well, time of acquisition, layers of production etc in a convenient way provides the Engineer the tool to better understand the field.

By visual representation of data the Reservoir Engineer is able to perform a Dynamic Data Synthesis of the reservoir much faster and is able to convey his findings in a much simpler way. This aids in quality checking of acquired data, early anomaly detection, and detection of reservoir trends. Using these commercial data visualization software provides the necessary freedom and ease to link data from multiple sources, present it online, share workspace and is also cost effective as it is not industry specific.

This paper will describe the practical experience implementing this commercial Data visualization software in a mature field and give example of innovative ways data from different sources were analyzed in one platform to explain the Reservoir behavior as well was some individual well performances. The paper proposes how Reservoir Engineers of the future would be dealing with big field data in day to day basis for its maximum utilization.
What is the Optimal Operation to Eliminate Cuttings Bed by Using Jet Comminuting Technique?
Authors: Liu Yongsheng , Gao Deli , Li Xin , Qin Xing , Li He , Liu Hang
Published: November 2017

Cuttings bed generated by the bad and non-prompt cuttings-carrying in extended reach well (ERD) and horizontal well drilling, can easily lead to slow rate of penetration (ROP) and poor drilling efficiency as well as increasing the risk of sticking. Previous studies have shown that the cuttings size is a major factor for the generation of cuttings bed, and the smaller cuttings size (<2.5mm) can effectively prevent the formation of cuttings bed. Jet comminuting technique has high efficiency for smashing solid materials which could be used to crush the cuttings into smaller debris. The coupling analysis method, including the CFD-DEM modeling for the interaction between fluid and cuttings as well as the particle replacement and bonding modeling for cuttings breakage, was used to characterize the jet comminuting process of cuttings. This paper mainly focused on the influence of the flow velocity and the target inclination on jet comminuting. The results show that the cuttings through the throat have a significant acceleration and the speed can be increased by 20-30 (m/s), which provides a good impact speed for the cuttings. After accelerated by the fluid and crushed with the target, the vast majority of cuttings have formed smaller debris. When the speed reaches 50(m/s), the particle crushing efficiency is obvious, and increasing the inlet speed further would make a little difference just ahead of the time. The inclination of the target near the 65° can obtain a good result. Furthermore, the analysis findings can help guide the engineering design and this paper proposes a new perspective to introduce the jet comminuting technique to the drilling operation.
Seismic Inversion of 3D WAZ Data Supporting the Evaluation of a low UTC Natih Stratigraphic Trap Discovery in North Sultanate of Oman
Authors: Wulff Angelika-M. , Dejong Hubert , Ghulam Uzma
Published: November 2017

Stratigraphic traps have been expected in the Natih Formation in North Oman based on geological understanding and indications from Top Natih seismic amplitude. Recently the presence of commercially recoverable oil in a stratigraphic trap has been demonstrated by a dedicated exploration and appraisal campaign. This is the first hydrocarbon discovery in stratigraphic trapping configuration in PDO's Block 6.

In 2008 well N1 was drilled based on 2D seismic for a deeper gas target and found 15m of pay in the shallow Natih A. A new 3D wide azimuth (WAZ) seismic was acquired in 2011-2012 over the area where the well is located. The detailed interpretation of the Top Natih carbonate on the new seismic revealed an amplitude anomaly in spite of the absence of any apparent structural closure. Well N1 sits within this anomaly and the HC-water contact interpreted from well logs roughly coincides with the northern edge of the amplitude anomaly. Further analysis of the seismic and well data led to the identification and interpretation of an intra Natih A reflector with a pinch-out towards the south coinciding with the southern edge of the amplitude anomaly.

Seismic inversion supported by QI modeling was fundamental for the evaluation and appraisal of this non-conventional discovery and supported the search for subtle traps over the whole area of good quality seismic. Impedance volumes and map extractions from the volumes indicate high porosity areas which cannot be identified in a similar way on seismic amplitude maps. The volumes and maps were used to select well locations in the appraisal campaign and have also significantly impacted in-place volumes. The data led as well to the identification of a number of additional subtle trap leads in this area in North Oman and supports the concept of porosity preservation by early HC charge.
An Overview of Challenges faced by Woman and its Mitigation Plan in Upstream Oil & Gas Fields of Abu Dhabi, UAE.
Authors: Katheeri Faaeza Al
Published: November 2017

This paper focuses on the challenges that women are facing in the Upstream Oil & Gas fields and work sites in Abu Dhabi. Currently ADNOC management is steering a drive to encourage more and more participation of women working in the fields and worksites. However, it is a world wide observation that some of them are facing difficulties that can be mitigated by changing the companies' culture, updating HR polices and prepare the facilities properly in order to reach the best integration of women task force in office and work/ field sites.

In order to fully understand the challenges of women working in field sites we have attempted to inquire a large scale intra-industry interviews, quantitative survey using benchmark companies. The data used is from the World international oil company's reports, World Development Indicators, and additionally collected by survey/ interviews.

Generally, the database created for this study has helped us to define the challenges, mitigations and benefits of engaging women in the field/ sites activities. Different workplace and scenarios are studies as reference data. A clear objective of women involvement in field/ sites driven by their roles and responsibilities aligned to business objectives, analyses on change impact at organizational level, cultural and social level has been outlined. All risks and mitigation plans are outlined to propose change in HR policies to make women work in safe and healthy environment in order to contribute efficiently and effectively to the company and country.
Multi-Functional and Non-Acidic Iron Sulfide Scale Dissolver for Downhole Applications
Authors: Chen Tao , Wang Qiwei , Chang Frank , Albelharith Esmael
Published: November 2017

Iron sulfide scale is one of the major flow assurance issues for the oil and gas fields. Mechanical descaling is currently applied, but it is time consuming and costly. Dissolvers based on concentrated hydrochloric (HCl) acid have high dissolving power, but they also have limited applicability due to overwhelming drawbacks such as corrosion and H2S generation. This paper presents the latest development of alternative iron sulfide scale dissolvers for downhole applications.

The selection criteria of alternative iron sulfide scale dissolver are high dissolution performance, low corrosion to carbon steel at elevated temperature, no H2S evolution and no formation damage. Three typical conventional iron sulfide scale dissolvers (THPS, pH neutralized chelate, and traditional chelate), along with 15wt% HCl were used as reference to compare the performance of the newly developed dissolver. Static dissolution tests and general and localized corrosion tests at elevated temperature were carried out to evaluate the dissolution and corrosion performance. Dynamic core flood tests were performed to investigate the potential formation permeability alteration when the chemical enters into the formation near wellbore, and CT scan was conducted to investigate the effect of dissolver on reservoir stimulation.

Test results indicate that the new non-acidic iron sulfide scale dissolver is an efficient and cost effective alternative for removing iron sulfide dominated scale deposited in downhole tubular and near wellbore. Results showed the new developed dissolver performed significantly better performance in term of iron sulfide dissolution capacity and much lower corrosion at high temperature. In addition, this new dissolver has no H2S generation and iron sulfide re-precipitation problems, which is significantly improve the efficient and safe operations. Moreover, it showed multifunctional characteristic of well stimulation, addressed and confirmed by dynamic coreflood evaluation and CT scan.

The new developed iron sulfide dissolver can mitigate iron sulfide deposited in tubing, near wellbore, and topside facilities with issues of iron sulfide black powder and schmoo.
Design Transformation of Hydraulically Powered Coiled Tubing Tractors for Matrix Acidizing Stimulations in Extended Reach Carbonate Reservoirs
Authors: Duthie Laurie , Saeed Abubaker , Shaheen Saud , Saiood Hussain , Moore Bruce , Krueger Ernie
Published: November 2017

The deployment of hydraulically powered coiled tubing (CT) tractors for matrix acidizing stimulations in extended reach carbonate reservoirs have provided critical benefits to well productivity. The technology allows for uniform placement of the matrix acid treatment while ensuring good zonal coverage. There have been several innovative tractor technologies developed over the last few years and the latest advances in design required an ‘out of the box' solution. For oil producers with electrical submersible pumps (ESP) completions including bypass sections, the 2.4" restriction in tubing size requires a large expansion ratio once the tractor enters the 7" cased and 6-1/8" open hole sections. The slim size of the tractor and expansion ratio were the main challenges to overcome in designing a tractor capable of delivering a high enough pull force to reach deeper target depths. It was recognized that a radical change in slim tractor design was required if these goals were to be met.

Although 2-1/8" slim CT tractors have been used extensively in this field, the results were not always consistent, leading to reduced coverage during the acid stimulation of the well which resulted in lower production and reservoir optimization. These previous tractors relied upon wheel sections to transfer the pulling force to the casing or open hole. Although these tractors performed well in the cased hole environment, they were less effective once the wheels came in contact with the reservoir rock. To overcome this deficiency, a completely new approach was taken in designing a slim tractor that could deliver a much higher pull force with improved grip in the open hole section. The new design uses a synchronized gripper system to enable the tractor to have continuous traction in the open hole section. This new compact design, while less than ½ the length, produces almost double the pulling force of the previous wheel based slim CT tractors.

During the trial test, the tractor delivered a pulling force of up to 3500 lbs to overcome friction and helical buckling forces to reach the target depth (TD). This resulted in an increase in the stimulation coverage from the original lock up depth of around 50% of the open hole, to increase the coverage to 100% of the open hole.

This new design opens a window to ultimately meet the goals of improved well treatment in long horizontals resulting in better productivity and uniform flow distribution in extended reach oil wells. New generations of the tractor are planned for development with increased pull force, higher expansion ratios for larger OH sizes and also to allow real time production logging on coil tubing.
Enhanced Gas Recovery by CO2 Injection and Sequestration: Effect of Connate Water Salinity on Displacement Efficiency
Authors: Abba M. K. , Abbas A. J. , Nasr G. G.
Published: November 2017

As natural gas continues to gain widespread usage as a source of cleaner and efficient fossil fuel, while greenhouse gas emission is attracting environmental consequences, the need for a viable method to enhance gas recovery and curtail greenhouse gas emissions, is paramount. The technique of injecting CO2 for Enhanced Gas Recovery (EGR) is deemed one of the efficient methods for simultaneously storing CO2 emissions and improving additional natural gas recovery from depleted gas fields, provided that the gas mixing in situ can be reduced. This can be achieved by an understanding of the mechanisms of displacement and the factors that affect them. This provides vital information for further studies aimed at a robust field scale application to establish the economic viability of the process. Connate water saturation and salinities are vital properties of the reservoir and their influence on the displacement efficiency cannot be overemphasised. This experimental study determines the effect of connate water salinity, in sandstone sample, on the displacement efficiency during EGR. This study presents the first novel experimental measurement of dispersion of CO2 in CH4 as a function of salinity in consolidated porous media. A laboratory experiment depicting the detailed process of the CO2-CH4 displacement in sandstone core samples at a temperature a temperature of 40°C and at a pressure of 1,300 psig, was carried in the investigation, at a CO2 injection rate of 0.25 ml/min to evaluate the displacement efficiency. The findings indicated that salinity of the connate water tends to decrease the dispersion of CO2 in CH4 at the stated conditions. This can be attributed to the increase in density of the connate water with increase in salinity, which occupies smaller pore channels within the porous medium thereby making the core sample more homogeneous. Also, grain diameter measurements were carried out from Scanning Electron Microscopy (SEM) images of the porous media using image analysis to establish the characteristic length scale of mixing of the medium.
New High-Definition Frequency Tool for Tubing and Multiple Casing Corrosion Detection
Authors: Martin Luis Emilio , Fouda Ahmed Elsayed , Amineh Reza Khalaj , Capoglu Ilker , Donderici Burkay , Roy Sushovon Singha , Hill Freeman
Published: November 2017

An electromagnetic corrosion inspection tool was designed to accurately assess corrosion in as many as five nested pipes. This paper provides details of the principles of operations and the methodology of the algorithms used for data processing of this tool.

This tool uses the eddy current principle and includes two transmitters and eight receivers. It operates in continuous wave mode at multiple frequencies. Optimized transmitter-receiver spacing configurations and multifrequency operation provide sufficiently diverse information to help assess the metal loss in each individual pipe for a wide range of configurations.

The performance of the tool was validated with synthetic and actual data by using controlled tests and experiments. These tests demonstrated the accurate determination of the defect positions and metal loss in each individual pipe of a multiple configuration. To validate the wide operational range of the tool, synthetic tests were used that included challenging scenarios, such as the identification of defects with a total metal thickness of all casings of more than 2 in. or overlapping defects at the same axial position. Finally, the accuracy of the tool in practical scenarios was verified by using results from well tests. The electromagnetic corrosion inspection tool has delivered unprecedented accurate assessments of the fourth and fifth pipes, as well as an accurate assessment of the first, second, and third pipes.

The information provided by this tool can significantly improve decision-making for mature well operations, especially in areas with high corrosion rates, and could result in significant cost savings to the operator.
Comparison of the Diagenetic and Reservoir Quality Evolution Between the Anticline Crest and Flank of an Upper Jurassic Carbonate Reservoir, Abu Dhabi, United Arab Emirates
Authors: Morad Daniel , Nader Fadi , Gasparrini Marta , Morad Sadoon , Darmaki Fatima Al , Martines Marco , Hellevang Helge
Published: November 2017

This petrographic, stable isotopic and fluid inclusion microthermometric study revealed that the diagenetic and related reservoir quality evolution of the Upper Jurassic limestones across the studied field onshore Abu Dhabi, UAE, occurred during three phases, including: (i) near-surface to burial diagenesis, during which reservoir quality across the field was either deteriorated or preserved by calcite cementation presumably derived from marine or evolved marine pore waters. Improvement of reservoir quality was due to the formation of micropores by micritization of ooids and skeletal fragments and moldic/intragranular pores by subsequent dissolution of the peloids. (ii) Obduction of Oman ophiolites and formation of the anticline, which included gas migration and cementation of the crest and flank limestones by saddle dolomite and coarse calcite spar. High homogenization temperatures and salinity of the fluid inclusions, negative δ18OVPDB values, saddle shape of dolomite, and the presence of exotic cements suggest that these carbonates were formed by flux of hot basinal brines, possibly related to the tectonic compression event. (iii) Rapid subsidence subsequent to the obduction, which resulted in extensive stylolitization and cementation by calcite. This calcite cement occluded most of the remaining pores of the flank limestones (water zone). The results suggest that gas emplacement: (i) halts deep-burial diagenesis but less diagenesis related to flux of hot basinal brines, and (ii) accounts for the better carbonate reservoir quality in the crest than flanks of the anticline. These findings, which have important implications for the fluid flow and hydrocarbon migration, relates for first time diagenesis and reservoir quality evolution to the burial and tectonic events of foreland basins in the Arabian Gulf area.
Examining the Operational and Environmental Benefits of Using High-Voltage AC Transmission Systems to Supply Onshore Grid Power to Offshore O&G Installations
Authors: Atallah Adham , Audring Dirk , Kerin Uros
Published: November 2017

This paper will discuss the feasibility of transmitting grid-supplied power to offshore platforms at long step-outs using high-voltage AC (HVAC) transmission systems.

In recent years, in an effort to reduce their environmental footprint, an increasing number of operators have considered supplying offshore installations with power from mainland electrical grids using high-voltage subsea cables. This is particularly the case in places like The North Sea, where there is a widespread push for O&G producers to ditch on-platform generators in favor of cleaner sources of electricity (hydro, wind, etc). On account of their low electrical losses and high transmission capacity over long distances, subsea DC transmission lines have traditionally been utilized to supply power to offshore platforms — especially for structures at long step-outs from shore (>50 km). However, because these systems require the installation of a DC to AC power converter on the platform (along with other ancillary equipment), they pose significant challenges with regards to space, weight, and cost.

This paper will examine how flexible AC transmission systems can be used to eliminate this problem by supplying offshore installations long distances from shore with reliable and eco-friendly grid-supplied power. It will outline the advantages of deploying an AC transmission system over conventional on-platform gas turbine generators – some of which include reduced CO2 and NOx emissions, increased availability, and less maintenance. A case study will be presented on Total's Martin Linge platform in the North Sea, which currently employs the longest subsea AC power link in the world at 163 km (Power Martin Linge, 2015). The AC transmission system helps reduce Martin Linge's CO2 emissions by two million metric tons through elimination of on-platform generators.

The paper will focus on the technologies and methodologies that were used on Martin Linge and will discuss the role that power grid simulation and modeling played in lowering the cost for critical power infrastructure, ensuring onshore grid stability, and minimizing overall project risk. The paper will conclude by discussing how producers can use flexible AC transmission systems in other regions of the world to reduce the environmental impact of their offshore installations by capitalizing on clean, reliable grid-supplied power.
Analytical Approach of Tractoring Strategies in Coiled Tubing Applications in Horizontal Wells
Authors: Noui-Mehidi Mohamed N. , Saeed Abubaker , Badeghaish Wael
Published: November 2017

In the present paper we discuss the potential of increasing coiled tubing reach with well tractor applications. Several scenarios of tractoring are analytically investigated with regard to the benefits of adding tractoring at early stages of the well intervention procedure. The analytical approach takes into consideration the force balance at compression and tension states, and solves the buckling condition with regard to different parameters.
Link Between Microporous Limestones and Elastic Properties in Tight Carbonates. A Case Study from the Lower Arab Formation Upper Jurassic, Onshore United Arab Emirates
Authors: Periere Matthieu Deville , Foote Alexander , Bertouche Meriem , Shah Razza , al-Darmaki Fatima , Ishaq Wala bin
Published: November 2017

The Lower Arab D Member (Kimmeridgian) in onshore UAE is typically characterised by a thick succession of homogeneous mudstones with local cm-scale interbedded bivalve-rich floatstones, which are thought to have been deposited in a low-energy mid-ramp setting. This sedimentological unit is located at the base of a sour gas reservoir that includes the oolitic grainstones of the Upper Arab D Member.

The pore system in these micritic deposits is dominated by matrix-hosted microporosity, along with open to partially cemented fractures, primary intraparticle macropores and rare biomoulds in the shell beds, hence a poor to very good porosity and extremely poor to rarely excellent permeability. Variations in porosity and permeability values appear to be strongly related to variations in the micritic fabric: both porosity and permeability increase when the micritic fabric evolves from anhedral compact with coalescent intercrystalline contacts (associated with very little and poorly connected micropores) to subrounded with facial to subpunctic intercrystalline contacts (with locally well-developed micropores). Micritic fabrics also clearly impact the elastic properties of the rock. Through analysis of elastic moduli calculated from standard density, and shear/compressional sonic wireline logs, the relationship between micritic fabric, porosity, permeability and geomechanical properties has been explored. With the evolution of micritic fabric from anhedral compact to subrounded, Young's Modulus decreases with increasing porosity and permeability, indicating a decrease in the overall stiffness of the mudstones. The implication of this observation is fundamental for the development of natural fractures within the Arab D, which are used as conduits for the vertical fluid flow. Indeed, stylolites with associated partially cemented tension gashes are commonly observed at the rheological boundaries, providing further secondary macroporosity and permeability anisotropy within the reservoir.

In this study, the observed link between micritic fabrics, log-derived porosity and elastic moduli within cored intervals has been used to predict micron-scale micritic fabric distribution in uncored wells from wireline logs only.
Development of an Energy Efficiency Improvement Methodology for Upstream Oil and Gas Operations
Authors: Grassian David , Bahatem Mohammed , Scott Trevor , Olsen Daniel
Published: November 2017

The main objective of this study was to develop a simple and effective methodology for capturing, analyzing and improving energy intensive processes in an upstream oil and gas field. The improvement of an upstream field's energy intensive processes can be challenging due to the dynamic, time variant, nature of the operations involved. It is nonetheless essential to minimize energy consumption in marginal fields in order to realize lower operating costs and remain profitable in a low-oil price environment. Therefore, Mubadala Petroleum researchers in Operational Excellence developed an effective energy efficiency improvement methodology. This study describes the methodology developed.

The methodology involved consists of the following steps: identificationand decomposition of system boundaries, selection of suitable energy metrics for the facility, collection of operational data, calculation of energy balances and metrics, assessment of performance against design expectations and best practices for systems, subsystems and equipment, and finally the application of a structured approach to identify and screen potential opportunities for improvement.
Operational Bypass Pigging in Multiphase Lines - A Flow Assurance Study Comparison to Real Operation and Model Validation
Authors: Pinto Ashwin , Voss Willi , Ladwa Ramesh
Published: November 2017

Operational pigging in a 36", 120 km subsea export trunkline has been extremely challenging for a client due to large liquid hold-up and the limited onshore liquid handling capacity. Production turndown along with bypass pigging is part of the standard operating procedure in order to slow down the pig and minimize excess liquid surges. In spite of these measures, the pigging operation has resulted in slugcatcher flooding and production deferment which initiated a detailed investigation using the OLGA multiphase simulator. The hydraulic model and the pig bypass model in OLGA will be calibrated using historic field data, and pig tool operational experience to mimic the process parameters and pig tool behavior in the field. Flow assurance analysis will be undertaken primarily to understand the impact of liquid hold-up in the pipeline, estimate the ideal bypass opening and operating limits. OLGA modelling predictions will be compared against historic field pigging runs for model validation. For this purpose, the basic pipeline model was extended to include a detailed onshore slug catcher with slug suppression control system to closely mimic the actual system in the field.

One of the main challenge is this analysis is the estimation of the wall frictional parameters considered in the flow models which affect the pig motion behavior. Hence, special considerations were given to the parameters affecting the bypass pig velocity, such as bypass pig-wall frictional forces and pressure loss coefficients. These parameters were modified based on detailed 3D CFD modelling of the pig tool, desktop calculations and tool operational experience. The bypass pig model and the overall hydraulic properties in the OLGA model were consequently tuned, showing a good match against the real field data. Finally, with the tuned OLGA model, selected sensitivity studies were carried out considering the current production flowrates, receiver pressures, bypass opening etc. to recommend a desired procedure for a successful pigging campaign. Ideal pig bypass opening was suggested for the trunkline where the client could maintain normal production flowrates, whilst slowing down the pig and resulting in manageable liquid slugs. This paper discusses the challenges and the process of determining the right bypass opening for a pigging operation, along with flow assurance analysis in order to develop an effective and a safe pigging solution.
Successful Field Trials of Water Control in High Water Cut Wells Using an Improved Downhole Water Sink/Drainage System
Authors: Qin Wenting , Luo Pingya , Meng Jigang , Li Hongwei , Mao Tiancong , Wojtanowicz Andrew K. , Feng Ming
Published: November 2017

The K1h23 and K1h27 at Luliang Oilfield Block 9, are thin-layer bottom water drive reservoirs. Traditional water control techniques including partial perforation, injection chemicals to form an artificial barrier, have been implemented at early on to delay the water breakthrough. However, after years of production, the water coning is fully established in many production wells. Those traditional water control techniques did little success to control the water cut after water breakthrough. Effective water control technique for high water cut wells is needed to prevent premature well abandonment.

Downhole Water Sink/Drainage technology is a dual completion method with in-situ simultaneous production of oil and water. With proper design, the hydrodynamic balance at WOC can be obtained to suppress the water coning, therefore, reducing water cut in high water cut wells. Whereas, the nature of those high water cut wells in K1h23 and K1h27 reservoirs makes it difficult to use the currently available Downhole Water Sink /Drainage system which would require dual tubing string production or single tubing string with tubing/casing annulus flow path. Since those high water cut wells in K1h23 and K1h27 reservoirs are usually old wells cased with 5.5 in tubular, making it unsuitable to accommodate two parallel tubing string. The severe paraffin and corrosion problem in the wellbore further preclude the option of producing fluids through tubing/casing annulus flow path. Because of that, an improved Downhole Water Sink/ Drainage system is developed to overcome the above challenges.

The improved Downhole Water Sink/Drainage system is a single tubing string completion system. The improvement of this system is the use of the hollow rod as a sucker rod for sucker rod pump to produce the lower water zone through the hollow sucker rod while producing upper oil zone through tubing string. Separate artificial lift for both oil and water production can be achieved. The system utilize the existing well condition in which sucker rod pump has already been used as a means of artificial lift in high water cut wells, result in high operation efficiency and low operation cost. The field results of two pilot wells show that the implementation of this system enable the water cut in the upper oil completion to reduce from over 80% to less than 50% and the oil rate increase up to several fold. Field data of the production history, reservoir performance, and well configuration of this system are presented with discussions.

The successful field trials of this two pilot wells prove the effectiveness of this improved Downhole Water Sink/Drainage for water control in high water cut wells with challenging conditions. For other mature fields with similar or better reservoir and well condition, this water control system can also be applied with little modifications.
Smart Workflows for Well and Facility Surveillance and Optimization: A Burgan Oil Field Experience
Authors: Al-Shammari B. , Rane N. M. , Desai S. F. , Sabea Al , Hamad Salem , Pandey M. , Shankhdhar S. , Chacko R. , Ledesma F. S.
Published: November 2017

Kuwait Oil Company started implementing digital oil field technology in 2009, with a vision to achieve integrated operations for measurement, modeling and control of Burgan oil field production. The project involved development of automated workflows connecting real-time data and integrated production models for analyzing asset performance and identifying production optimization opportunities. The workflow calculates variance in daily field production and correlates it to the corresponding well production change alerts attributed to key changes in well and facility parameters. Well health status is determined using key performance parameters and subsequently wells are categorized for planning remedial actions. The workflow further utilizes the integrated surface network model in an automated process to generate production optimization opportunities under various well and plant operating limits and the results are visualized through interactive dashboards in a state-of-the-art collaboration center for quick analysis.

This paper discusses the application of smart workflows for analyzing asset performance and recommending production optimization actions in Burgan oil field. It describes how smart workflows are used to integrate real-time well and facility data with production models to assist the operator in faster diagnostics and improved decision making.

The paper demonstrates through field examples how the application of an automated workflow using real-time data and integrated models has improved the conventional approach for asset performance analysis and optimization resulting in significant cost savings for the operator.
Cracks in Structural Steel - Investigations & Mitigations
Authors: Perumal K. , Adel K. , Al Awadhi I.
Published: November 2017

Vibratory Screens of Sulphur Granulation Units are typically mounted on framed steel structures. The supporting structure requires special design considerations as rotary equipment transmit significant dynamic loads. Appearance of frequent cracks in the steel structure and equipment resulted in shut down of unit in one of the GASCO plants. This paper presents investigations undertaken to ascertain the underlying causes of cracks in structural steel and methods employed to enhance the integrity of support structure thereby ensuring continuous availability of equipment and extended asset life.

A detailed study with OEM intervention was carried out which included mapping of cracks, study of crack patterns, vibration measurements, study of equipment maintenance history & cyclic stress effect on structure. Frequency analysis of structure was carried out to verify if the natural frequency of structure is coinciding with excitation frequency of equipment. Time history analysis of structure was performed to examine if velocity amplitudes are exceeding tolerable limits. Investigation findings, OEM feedbacks and dynamic analysis outcomes succeeded in revealing the root causes of cracks in structural steel and consequently, remedial methods were finalized to avoid recurrence of cracks.

Analytical results of the structure indicated that natural frequency of the structure was very close to the critical speed of resonance, implying fundamental deficiency in the stiffness of the structure contributing to high vibrations and structural damage. Time history analysis corroborated the same, as vibration amplitudes were found far exceeding vendor specified limits. About 40% of vibration measurements on the equipment were found outside the ‘acceptable range’ set forth in ISO standards.

Investigations carried out to ascertain the cause of high vibration attributed to unapproved field modifications made on the equipment. Inspection of equipment assembly revealed that the inlet chute arrangement & its thickness were changed, an inlet cone was added to equipment and its mass was ignored in weight balancing calculation. Remedial works to reduce vibrations and to avoid cracks have included strengthening of structural members, addition of bracings, modifications of inlet chute box, adjustment of counterbalance weight & rectification of installation errors.

The said remedial works were implemented three years ago and monitoring of structure demonstrated successful results (no cracks and vibrations are within allowable limit). Application of this sound engineering method has eliminated frequent maintenance / shutdown costs and also contributed to asset life extension.
Sobre ‘el evento Agustín’ como un problema para la comprensión de la noción heideggeriana de Ereignis
Authors: Loza Baltazar Alonzo
Published: November 2017

El texto avanza algunas tesis en torno a la relación entre Agustín de Hipona y Heidegger. El objetivo es problematizar la noción de evento según se presenta en los Beitrëge zur Philosophie. Vom Ereignis. Primero se hace un recorrido por las más explícitas relaciones entre ambos pensadores para mostrar algunas similitudes y después plantear los problemas que implica la recepción que tiene Heidegger de la tradición (específicamente Agustín, no sólo como pensador sino como evento) y sus implicaciones para la noción de evento.escatología, gracia, piedad, fenomenología de la religión, filosofía de la religión
El debate sobre los orígenes de la homosexualidad masculina. Una revisión de la distinción entre esencialismo y construccionismo en historia de la sexualidad.
Authors: Solana Mariela
Published: November 2017

Este artículo analiza el debate entre John Boswell y David Halperin en torno a los orígenes históricos de la homosexualidad masculina. Si para el primero es posible afirmar que existieron personas gays en la Antigüedad y el Medioevo, para el segundo la homosexualidad, tal como la conocemos, es un invento moderno. El artículo argumenta que entender este debate como un choque entre esencialistas y construccionistas sociales –tal como fue leído por sus comentadores– es problemático y sugiere una lectura alternativa a partir de las ideas de figuralismo e irrealismo. Como consecuencia, propone que además del esencialismo sexual, los estudios de género y sexualidad deberían desconfiar del esencialismo histórico y comprometerse con un pluralismo historiográfico.
Una discusión sobre la posición sistemática de la Metaphysik der Sitten de Kant y la Sittenlehre de Fichte
Authors: Romo Vicente De Haro
Published: November 2017

Resumen: La posición sistemática de la Metafísica de las costumbres de Kant y en concreto de su segunda parte, la Doctrina de la virtud, es análoga a la del Sistema de la doctrina de las costumbres según los principios de la Doctrina de la Ciencia de Fichte. Sin embargo, en dicha obra, Fichte califica la ética kantiana de “formalista” y pretende que la suya es más concreta y aplicable por su teoría de la conciliación entre el impulso natural y el impulso moral. En este artículo se explica  y discute dicha postura de Fichte, mostrando que la crítica a Kant es injusta, dado que precisamente la Doctrina de la virtud ofrece, de un modo metódicamente diverso pero sólido y coherente con la ética de la autonomía, la “ética material” kantiana.
Subjetividad, Intersubjetividad y Corporalidad en la teoría humeana de las pasiones indirectas
Authors: Guerrero Leandro
Published: November 2017

El trabajo es un estudio de la teoría humeana de las pasiones indirectas. Pretende señalar el vínculo con un campo intersubjetivo que oficia de marco para el desarrollo afectivo del sujeto y el carácter irreductiblemente encarnado del mismo. Para ello: a. se reconstruye esquemáticamente la clasificación humeana de las pasiones; b. se discute la idea de que las pasiones indirectas son impresiones simples y se sostiene que esto no impide a Hume poder pensar las condiciones circundantes como causalmente necesarias para la aparición de estas impresiones dentro de haz de percepciones que conforman la mente; c. se defiende la tesis de que estas condiciones causales son de carácter cognitivo: a medida que se incorporan diversas mediaciones cognitivas, nuestras pasiones adquieren progresivos grados de sofisticación que permiten pensar el refinamiento y desarrollo gradual de la estructura afectiva (y cognitiva) del individuo.
El encuentro suspendido: la diferencia y la presencia inmemorial
Authors: Torres Sáncez Rayiv David
Published: November 2017

Este artículo se propone tratar la relación entre lo inmemorial y la diferencia a la luz de Maurice Blanchot y Jean-Luc Nancy en términos de una pura deconstrucción de la presencia. Para ese propósito, estas páginas revisan la aproximación de ambos autores a dos episodios bíblicos (la cena de Emaús y la escena de la resurrección del evangelio de Mateo) con el fin de anudar la reflexión a la segunda parte del libro de Maurice Blanchot La comunidad inconfesable para profundizar en la relación entre la inaprehensibilidad de la “presencia real y sencilla” y la remisión infinita de un encuentro, como se verá con Blanchot, irreductible a la despedida. A lo largo de este análisis se buscará demostrar cómo la “presencia real”, aquella que no puede estar del todo ni “ahí” ni “ahora”, pasa a ser lo inmemorial, por cuanto, no es susceptible ni de olvido ni de recuerdo, y sin embargo no nos abandona. Esto compromete no sólo la efectividad positiva y segura de lo que se muestra (aquello que se presenta para partir), sino, también, la destinación de un encuentro abocado a la disolución, y, en consecuencia, a la prolongación y la iteración.
Markus Gabriel. (2016) Por qué el mundo no existe. Enrique G. de la G. (trad.) México: Océano. 247 pp.
Authors: Gallo Serratos Oswaldo
Published: November 2017

Reseña crítica de Por qué no existe el mundo, de Markus Gabriel.
¿Son los conceptos formales (o lógicos) categorías ontológicas?
Authors: Mota Sergio
Published: November 2017

En este trabajo trato de dar respuesta a la cuestión acerca de si los conceptos formales del Tractatus Logico-Philosophicus de Wittgenstein son o no categorías ontológicas. Mi respuesta es que no. Así, después de ofrecer una definición de ‘ontología’ (§2) y diferentes lecturas sobre las proposiciones iniciales del Tractatus (§3), presento la noción de concepto formal o lógico, así como diferentes interpretaciones en relación con el papel de esos conceptos en el Tractatus (§4). Después, y teniendo en consideración lo dicho en las secciones precedentes, presento (I) mi propia lectura de las proposiciones iniciales en términos de expresiones conceptuales o gramaticales, (II) la distinción tanto en extensión como en intensión de las nociones de concepto formal o lógico y categoría ontológica y (III) la disolución de la ontología, que no de la lógica (§5). Finalmente ofrezco unas conclusiones finales que recogen aspectos centrales de la discusión precedente (§6).
Konstruksi Sosial Masyarakat terhadap Pemandu Karaoke: Studi Kasus di Desa Botorejo Kecamatan Wonosalam Kabupaten Demak
Authors: Sari Dewi Ratna , Prasetyo Kuncoro Bayu
Published: November 2017

Karaoke houses that many found in urban areas, nowadays also find into rural areas. The existence of karaoke houses can not be separated from the profession of "karaoke guide", and they often get bad stigma by the public. This study aims to: (1) find out how social construction Botorejo people against karaoke guides; (2) to know the background of the formation of social construction of the community towards karaoke guides, and (3) to know the impact of the social construction on the social relation between the karaoke guide and Botorejo people. This research uses qualitative method with case study approach. Location in Botorejo Village, Wonosalam District, Demak Regency. The data gets from karaoke guides, visitors karaoke houses, managers karaoke houses and people who live in Botorejo Village. The results of the study found that the Karaoke Guides constructed by Botorejo people as “bad women”, the background of the socialconstruction of the Botorejo people is due to the daily habits of karaoke guides and because of the media's reference to the existence of karaoke guides. The impact of social construction on social relations between people with karaoke guides is a latent conflict, social careless relation, and apriori images by the Botorejo people.
Gerakan Sosial Keagamaan pada Komunitas Urban: Studi Kasus Gerakan Pengajian Ahad Pagi Bersama di Palebon, Pedurungan, Kota Semarang
Authors: Kusmanto Thohir Yuli
Published: November 2017

Religious communities express religiously in various forms according to the social context in which they develop. The diversity of the expression as a form of interrelations of textual interpretation of the social context and its era. Religious social movement is one form of religious expression to answer complex religious and social issues and needs from primary to tertiary needs. The urban community utilizes religious social movements in the form of majelis taklim. Organizing religious social movements in majelis taklim is part of collective awareness and consensus among community members. The existence of religious social elites is the key to achieving religious social movements. The trust and social network of citizens and social institutions become another force within the community. In the case of this study, the religious social movements of urban communities take the form of routine recitation activities, the collection of zakat infaq and shadaqah, the organization of formal education, community health services, and the development of economic enterprises. In this social movement, the basic problems faced include the capacity of management and human resources. The implications of the presence of religious social movements in urban communities are felt. They have a spirit of unity on the basis of trust in the community, fulfilled the religious social needs and awakened the identity of the community that has the advantage.
THE INTERPLAY OF SPATIAL POLICY, TRAVEL BEHAVIOUR AND AIR QUALITY IN ISKANDAR MALAYSIA
Authors: Permana Ariva Sugandi , Muhamad Ludin Ahmad Nazri , Majid M. Rafee
Published: November 2017

Iskandar Malaysia has been emerging as a centre of economic growth in the southern corridor of Malaysia. While the present spatial policy has emboldened the growth centre that inspires the urban development in the region to flourish, the spatial development has brought a substantial environmental consequence to urban areas. With the support of travel behaviour of the citizens as a catalyst, the interplay between spatial policy and urban air quality in the region becomes a major concern. This study began by undertaking spatial policy analysis at local and federal levels. Then, an origin-destination study was carried out to assess the travel behaviour of citizens and the concentricity or poly-centricity of the region as an eventual reflection of spatial policy. Based on the information on travel behaviour and number of vehicles in Iskandar Malaysia, the vehicle-kilometre travelled (VKT) was estimated as well as the carbon emission from the transport sector. An ethnographic survey was also conducted to understand the nonmotorized travel behaviour of the citizens i.e. willingness to walk. This survey was to crosscheck and confirm the willingness to walk of the citizens resulting from questionnaire survey. Results of the study reveal that the spatial policies of Iskandar Malaysia along with the travel behaviour of the citizens have strongly shaped the present spatial structure of Iskandar Malaysia region, and ultimately lead to ever increasing air pollution in the region.