bluuebunny/crossref_metadata_2025_split huggingface dataset:
A New Class of ‘Green’ Corrosion Inhibitors, Development and Application
Authors: Craddock H. A. , Caird S. , Wilkinson H. , Guzmann M. 
Published: December 2007

Abstract
The chemical application of corrosion inhibitors is a widely adopted practice in production and processing operations in the Oil and Gas Industry. Particularly challenging is the development of new chemistries, which maintain good protection of materials under a variety of conditions whilst being environmentally acceptable.
This paper illustrates patented work (jointly patented by BASF and Roemex Ltd, Patent Numbers AE 20051110/Wei PF0000057382/Wei) in the chemistry of Alkylpolyglucosides (APGs) and their synergistic effect with polyaspartates.
This paper outlines the development of this inhibitor class, which demonstrates good general inhibitor performance in a number of oilfield brines, shows good filming characteristics under conditions of shear and also has an excellent environmental profile.
The paper will examine the base chemistry of the alkylpolyglucosides.
The paper will illustrate a number of sweet and sour conditions as well as various temperature conditions, in a variety of oilfield waters. The results of laboratory tests under these conditions such as linear polarisation resistivity (LPR) the so-called "bubble test" and Rotating Cylinder Electrode (RCE) will be displayed and presented. The paper will further illustrate the preferential partitioning behaviour of these chemistries to the aqueous phase and their non-emulsifying tendency.
Environmental data on formulated products will also be given. To date all formulations of this chemistry have been classified for use in the UK sector as Gold with no substitution and other product warnings.
Compact Multiphase Inline Water Separation (IWS) System—A New Approach for Produced Water Management and Production Enhancement
Authors: Wang Shoubo , Gomez Luis , Mohan Ram , Shoham Ovadia , Fang Zaixin , Xiao Jinjiang , Al-Muraikhi Ahmad , Al-Dawas Saleh 
Published: December 2007

Abstract
A fully instrumented compact multiphase Inline Water Separation (IWS) system1 has been developed to separate a significant portion of the produced water from a production stream, with the remaining production fluids (gas, oil and the rest reduced amount of the water) sent to existing processing facilities. The quality of the separated water meets the requirement for water injection or direct disposal. The system consists of a Gas-Liquid Cylindrical Cyclone (GLCC©2), a Liquid-Liquid Pipe Separator (LLPS), a Liquid-Liquid Cylindrical Cyclone (LLCC©3) and a two-stage Liquid-Liquid Hydrocyclones (LLHC). The compact IWS can be installed either at the wellhead or downstream of a production manifold to handle multiple wells on land, offshore platform or sea floor. The benefit of such a system includes increasing field water handling capacity, reducing the size and cost of the downstream separation facility, and reviving dead low-pressure wells.
A prototype compact IWS system has been tested under field conditions. Initially the individual compact separator units have been tested separately and optimized for maximum separation efficiency. The results of the IWS system tests show that it is feasible to integrate GLCC, LLCC, LLPS and LLHC into a compact multiphase separation system for bulk produced water removal from a production stream. The overall water separation efficiency, defined as the percentage of water removed from the total water production, up to 80%. The outlet water quality is less than 200 ppm oil concentration, which meets the expection of this study. A second stage LLHC can be used for further polishing the water quality to meet the requirement of water injection or direct disposal. The control systems for GLCC liquid level control and LLHC differential pressure ratio control were also tested under slug flow conditions.
Review of the State-of-the-Art Gas/Liquid Cylindrical Cyclone (GLCC) Technology— Field Applications
Authors: Kouba Gene , Wang Shoubo , Gomez Luis , Mohan Ram , Shoham Ovadia 
Published: December 2007

Abstract
The Gas-Liquid Cylindrical Cyclone (GLCC) has repeatedly proven itself in laboratory and field tests, as well as in actual field applications, as a viable alternative to the conventional gravity-based gas/liquid separator. Large conventional gravity-based vessels have been relied upon since the inception of the petroleum industry to separate oilfield production of oil, water, sand, and gas. However, economic and operational pressures continue to force the petroleum industry to seek smaller, less expensive and more appropriate separation alternatives in the form of compact separators, especially for offshore and subsea applications. As compared to the vessel-type separators, a compact separator such as the GLCC is a simple, low-cost, low-weight separator that requires little maintenance and is easy to install and operate. Furthermore, the capabilities to accurately predict various performance characteristics, e.g., liquid carry-over and gas carry-under, of the GLCC have far surpassed those capabilities for conventional vessel type separators. The scope of this paper is to present the state-of-the-art of the GLCC technology for variety of applications in the oil and gas industry.
At present, over 1,000 GLCCs have been installed in fields around the world. Details of typical field applications are presented and discussed in this paper. In addition, data from field type facilities, namely, Texaco's Humble flow loop and Colorado Engineering Experiment Station Inc. (CEESI) are presented. These data illustrate GLCC performance at high pressures (up to 1,000 psi) with a variety of hydrocarbon fluids. The results presented include, gas carry-under (GCU), liquid carry-over (LCO) and GLCC control data. Additional field testing of the first integrated GLCC compact separation system carried out in Daqing oil field experiment station are also presented.
The technology for state-of-the-art GLCC field applications and some laboratory and field testing results presented in this study, will help petroleum engineers to better understand, design and deploy GLCC technology in their field operations.
Microbe-Enhanced Oil Recovery Technology Obtains Huge Success in Low-Permeability Reservoirs in Daqing Oilfield
Authors: Wankui Guo , Chengfang Shi , Zhenyu Yang , Zhaowei Hou , Rui Jin , Ying Wang , Jiyuan Zhang , Guanghao Shan 
Published: December 2007

Abstract
Based on the MEOR mechanism study of Brevibacillus brevis and Bacillus cereus, From 2002 to 2004, the two strain and other microbes were applied in the microbial huff and puff as well as the Microbial enhanced waterflood test in Daqing excessively low permeability (1.0md-25md) reservoir. After bacteria injection, 44 among the 60 huff and puff wells shows a significant oil production response—the accumulative oil increment reaches 9175.5 tons and the input-output ratio amounts to 1: 8. The Microbial enhanced waterflood test carried out in June 2004 also provides a satisfying result. After the injection of bacteria, the pressure in the two water injectors decreased more than 2MPa, which results in an injection capacity increase. The Analyse result of production fluid indicate that the selected bacteria can adapt the stratum conditions better and can grow and reproduce. They degrade heavy hydrocarbon, improve character of crude oil and metabolize active substances. The fluid production of trial field increase and water cut decline. in late 2005, 7 production wells among 10 production wells get good effect. Fluid production increased from 50.7 tons per day (before bacteria injection) to 68.3 tons per day, and the corresponding water cut declined from 46.8% to 40.3%.oil production is increased from 24.7 tons per day (before bacteria injection) to 40.8 tons per day. The accumulative oil increment more than 5800tons and the input/output ratio is 1:5. These make MEOR a very promising and effective oil recovery method in Daqing low permeabilityreservoirs.
Case Study: Optimizing Hydraulic Fracturing Performance in Northeastern United States Fractured Shale Formations
Authors: Paktinat J. , Pinkhouse J. A. , Johnson N. , Williams C. , Lash G. G. , Penny G. S. , Goff D. A. 
Published: December 2007

Abstract
The primary purpose of stimulating fractured shale formations is to extend the drainage radius by creating a long fracture sand pack that connects natural fractures and increases flow channels to the wellbore. However, most of the fracturing pad fluid leaks off into natural fractures resulting in shorter effective fracture lengths and a significant damage zone surrounding the fracture. This is due in part to inadequate fluid loss control properties of the injected fluid and high capillary forces that retain fluid in the formation. Surfactants are used to lower high capillary forces and help well cleanup of the injected fluids. However, many of these additives adsorb rapidly within the first few inches of the shale formation, reducing their effectiveness and resulting in phase trapping of the injected fluid.
In this work, laboratory data is presented for various fracturing fluids with different surface activity pumped into the Rhinestreet Shale. Recent fracture treatments have been successful utilizing a slick water treatment consisting of water and dry polyacrylamide polymer with and without surfactants. Commonly used surfactants as well as a microemulsion system are evaluated in this study.
Laboratory data is presented illustrating how a microemulsion accelerates post fracturing fluid cleanup in tight shale cores. Addition of microemulsion to the fracturing fluid also results in lowering pressure to displace injected fluids from low permeability core samples and proppant packs. When microemulsion is incorporated at 2 gpt within the fracturing fluid; the relative permeability to gas is increased substantially while water saturation is decreased. This alteration of the fracturing fluid effectively lowers the capillary pressure and capillary end effect associated with fractures in low permeability reservoirs by as much as 50%, thus mitigating phase trapping and therefore permitting an increased flow area to the fracture, hence longer effective fracture lengths.
Methodology of Optimal Well Pattern, Location and Paths in Productive Formations During Oil and Gas Fields Development Planning
Authors: Larionov A. , Nifantov A. , Itkin V. , Alexandrov V. 
Published: December 2007

Abstract
The wells location issue in a productive formation is an important aspect of the effective field development. The problem solution is impossible on the intuitive level due to the reservoir inhomogeneity.
At present the well path is accepted to be located basing on the famous criteria, specialist experience and hydrodynamical simulation on a reservoir model. The designer should analyze many field development variants with different well spacing during limited time interval.
The self-doped tool is invented for decision-making support at the fields development planning. It reduces the time of the field development scenarios making and analyzing. To solve the multimodal optimization problem the 1D discrete optimization methods, the genetic and Ant Colony algorithms are applied.
The methodology-distinguishing feature is an additional capability to design well paths prescribed by spatial curves. The maximum crookedness drilling limitations are kept.
The numerical simulation software is built for the field development efficiency determining. The optimum is calculated on the maximization results of cumulative production, gas production ratio or net profit.
On practice, the project production rate is not guaranteed by the optimal well location defined on simulation. Depending on the making of borehole into the planned reservoir zone, the well drilling quality defines the production indices. To solve the problem the contemporary well drilling supervisor methods are used. They include the method and information support. The information system of technology control allows reconstructing the consistency of operations and staff actions at the well site. As a result, the well planning and conduction experience collected at the formalized database is used during next well planning.
In the study, the approach of combining the field development automated planning, well pattern calculating and borehole drill control is applied. Using the modern Internet-technology advantages, it introduces the convenient features for real-time joint work of designers and supervisors.
Cements and Gas Well Cementing in the Arctic Regions of Russia
Authors: Klyusov Anatoly A. , Rybokon Alexandr A. , Frolov Andrey A. , Klyusov Vsevolod A. 
Published: December 2007

Abstract
The paper presents geocryological characteristics of the main gas and gas condensate fields, standard well design, typical problems occurring during well construction and methods of well cementing in permafrost and soft rocks. Hydration process and Portland cement hardening at a low temperature are considered along with erroneous concepts of the formation of cement stone in annular space of low temperature wells, taking into account the influence of temperature gradient and negative effect of "thermal" method of hardening stimulation. Basic requirements for oil-well cements are formulated and the method of their testing in arctic conditions is refined. The information about cements and additives for arctic wells, their meeting the API standard and the reasons and methods of gas flow prevention in permafrost is given.
Education in Petroleum Engineering Delivered by Tomsk Polytechnic University (Tomsk, Russia) And Heriot-Watt University (Edinburgh, UK)
Authors: Pokholkov Yu. P. , Koshovkin I. N. , Dmitriev A. Yu. , Kulagina T. E. , Parnachov S. V. , Ford J. 
Published: December 2007

Abstract
The idea of creating a Centre that would train world-class experts in petroleum engineering in Russia was first voiced in September 2000. Being one of the leaders of Russian technical education, Tomsk Polytechnic University became the basis for the Centre.
Numerical Method of Evaluating Elemental Content of Oil-Water Saturated Formations Based on Pulsed Neutron-Gamma Inelastic Log Data
Authors: Khisamutdinov A. I. , Phedorin M. A. 
Published: December 2007

Abstract
A new numerical method is proposed for solving an inverse problem of pulsed neutron-gamma inelastic log . The matter is to determine a composition of fluid and rock skeleton by gamma-ray measurement data in spectral windows of four elements: C, O, Ca, Si. Inverse of the data is based on iteration procedure, on each step of that the corresponding direct problem is solved for transport equations of neutrons and gamma quanta. Results of numerical experiments are presented which confirm a convergence to exact solution for the most of unknowns. The proposed numerical method is development of general approach for solving inverse problem in nuclear geophysics early considered [1-5].
Reservoir Modeling—Automatic Well Log Data Correlation Using "AutoCorr" Software
Authors: Gutman Igor , Balaban Ivan , Kuznetsova Galina , Staroverov Vladimir 
Published: December 2007

Abstract
Well correlation is the key process while creating geological model of oil reservoirs for the fields having dense wells network and hence the process determines effectively all following steps of oil production.
The well correlation consists of mapping one well's intervals to another wells. It is a special case of one of the most complicated mathematical problem so called image recognition problem. The basic difficulty of automatic correlation of well intervals is the fact that in advance it is not known which stratigraphic horizons were kept unchanged in both wells and which are washed away or subject to other distortions.
This technical report shows opportunities of automatic well correlation procedure, as they developed in a software package "AutoCorr" and how these opportunities are used in oil deposits modeling. Continuous process of automatic modeling of oil reservoirs as it is carried out in a package is considered: loading initial data, detailed well correlation, loading geophysical interpretation results, fluids and gas contacts level determination, construction of geological profiles, maps, reserves evaluation and transition to three-dimensional geological modeling. The attention is given to a number of the important questions solved at automatic correlation: construction of wells plan triangulation, well pair correlation, correlation error estimation, transition from well pair's correlation to construction of the whole deposit detailed correlation scheme tracking high porosity intervals as ways of a fluids filtration, a parity of automatic and interactive methods of correlation.
It is noted in the paper that use of the offered automatic correlation changes, in comparison with traditional approaches, some essential aspects of work. The first is that requirements to quality of initial data increase. The second is that the volume of routine manual work during correlation is reduced because the basic attention is given the correlation in some complex areas and the significant part of work is carried out automatically. The third is that the volume of creative making work increases. Automatic well correlation gives opportunities for in-depth study of geological object, fast checking of various hypotheses layers behavior, inclusion in a structural skeleton of model of many additional details. The main positive results are better correlation result, greater productivity and more exact and detailed geological model.
Technical Competence Assessment System for Oil & Gas Company Personnel; Increasing Training Efficiency Through Short Courses
Authors: Dmitriev A. U. , Brusnitsyn D. N. 
Published: December 2007

Abstract
It is obvious that the successful development of an oil & gas company largely depends on a consistent system of personnel training and development. To optimize such a system, there has to be a method ensuring maximum training efficiency.
This method that takes into account most advanced Russian and Western technologies was developed by Heriot-Watt Approved Support Centre at TPU. This System of Assessing Technical Competence of Oil & Gas Personnel is now successfully implemented at OAO "Sibneft-Noyabrskneftegaz". Assessing tools, including the software, are used by the Company HR managers to assess technical competence of the personnel without any outside assistance. Recommendations for personnel development are further taken into account when planning Company's technical training programs for the employees. Skill assessment is an established procedure used for identifying personnel needs for technical training. Individual development plans for the employees are developed for the same purposes, the next step being the development of integrated corporate training programs. When a certain stage is completed, another assessment is performed in order to monitor employee's progress or adjust the plans.
This article covers various issues of applying skill assessment techniques based on the experience with OAO "Sibneft-Noyabrskneftegaz" (Noyabrsk, Russia).
Modeling of Petroleum Migration for the Part of West Siberian Basin
Authors: Baranov V. E. 
Published: December 2007

Abstract
During the work a 3D model of oil migration for Jurassic petroleum system in the area of interest was created. Modelling was based on the MPath software developed by the Permedia Group, Ottawa, Canada.
An integrated approach to the evaluation was taken including analysis of geochemical dataset, and geological information. 3-D cube with grid resolution 500x500 m was constructed from the map horizons built on the base of interpretation of 2-D seismic realized within the studied territory during resent 20 years.
In order to provide complex analysis of petroleum system a number of its elements were evaluated: distribution and quality of source rock, including its richness and maturation of source rock; thermal history of the basin; quality and distribution of reservoir rocks including analysis of capillary threshold pressures; paleostructural setting of the territory during migration history.
According to the geochemical source rock and oil correlation, Bazhenov formation was considered as a principle source rock for the studied area.
Expulsion modelling demonstrates that main kitchen areas are confined to depressions located in the eastern and north-eastern part of the territory – Yuzhno-Koltogor depression and Ilyahskiy Flexure. The main migration scenario suggests that that oil migrated stratigraphically downwards from Bazhenov source rock, then lateral migration in fill-spill manner occurred in the Upper Vasyugan J1 carrier beds.
Model obtained shows good predictive power in reconstruction of secondary migration processes and demonstrates rather good correlation with real data. Moreover, model obtained allows proposing increase in STOOIP for several low studied "small" fields located within the area.
Geochemical Aspects of Oil-Gas-Bearing Capacity of Precambrian Deposits of Ancient Russian Platforms
Authors: Bazhenova O. K. , Bazhenova T. K. , Fadeeva N. P. 
Published: December 2007

Abstract
Geochemical investigations are being an inalienable part of oil-geological researches and are being hold at different stages. Regional investigation stage is not finished during the stage investigations of Precambrian deposits of ancient platforms. The main task of geochemical investigations during this stage includes emphasizing of oil-source horizons, their qualitative and quantitative characteristics: determination of genetic types of organic matter, its maturity level, oil-source potential and its realization degree, investigation of composition of naphtides (in case they exist) and possible determination of genetic connections of them with concrete oil-source horizons.
Perspectives of oil-bearing capacity of the regions from the geochemical point of view are being determined by the productivity of oil- and gas-formation centers, i.e. presence of oil- and gas-source rocks of sufficient thickness and organic matter maturity level.
Development Technique and Practice of Horizontal Wells for Complex Fault-Block Reservoirs in Jidong Oil Field
Authors: Hai-min Zhou , Chang Xue-jun , Hao Jian-ming , Jia-peng Zheng 
Published: December 2007

Abstract
Jidong is a typical small-complex fault-block reservoir in fault basin of Bohai Bay. On the basis of the fine description of the reservoir, the new developed horizontal well technique is generalized and applied. The applied scale of the horizontal well technique to the development of Jidong complex fault-block reservoir is speedily extended and the fine result is achieved in lastly two years. In the application of the horizontal well development technique, such series of the horizontal well development techniques as adaptability evaluation of the horizontal wells, scheme deployment, design, drilling, well logging, borehole log, oil production and production management suitable for the features of the complex fault-block reservoir are gradually formed with keeping search and summary. The matching utilization of the technique effectively ensures the applied result of the horizontal well development technique of the small-complex fault-block reservoirs in Jidong Oilfield and it establishes the good fundament for further promoting the advancement of the horizontal well technique. The reservoir with multi-reservoir, small fault-block, bedded edge-bottom waterflood in Gao 63 fault block of the south area in the shallow formation in Gaoshangpu Oilfield, high-effective development for the difficult-to-production reserves in Ng8 subzone of the reservoir for the north area in the shallow formation in Gaoshangpu Oilfield and the practice of high-effective potential by the slim-hole sidetracking horizontal well for improving the development efficiency in the maturing oilfields prove the validity of the method.