bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrated Workflow for Optimizing Waterflood Design in Brazil Large Mature Field Using Streamline Simulation
Authors: Marques Flora , Cosme Vigano Guilherme , Giuriatto Jean Luis , de Freitas Bezerra Matheus 
Published: October 2019

Abstract
An integrated workflow was developed to support the waterflood design of an onshore field in Brazil. This giant mature field has more than 2000 drilled wells with a long production history that has been declining. The objective of the study was then to improve the recovery factor for that field, as well as generate an integrated workflow that could be adapted and applied to other similar fields.
The workflow comprised four main stages. It started with the gathering and treatment of all relevant input data, such as fluid and rock lab data, well logs, and production historical data, to construct a simulation model fit for streamline simulation. A sensitivity study was then conducted analysing the uncertain parameters that had most impact on the simulation results, followed by an uncertainty analysis. Best candidates from this second phase were then used as base cases for the history match process. Eventually, the waterflood design was analysed and optimized considering three main aspects: water allocation, workovers and well placement.
The water allocation was first optimized and a reduction of about a fifth of injected water was achieved while maintaining the level of oil production. This was performed using the Pattern Flood Management algorithm (PFM), available in the streamline simulator. This module performed water re-allocation based on bundle efficiency ranking. Different control criteria and optimization parameters were experimented to reach an optimal result. The potential for workovers and, in particular conversion of producers into injectors, was then evaluated but didn't provide a significant improvement in results. Eventually it was considered an increase in well count, looking into optimized well placement based on sweet spot maps and streamline analysis. These solutions were finally combined in an iterative process to ensure interactive effects were accounted for and all aspects jointly optimized and led to an expected increase in oil production of about 5%.
This study generated an integrated workflow bridging a long production history with a full-field simulation model for this large mature field. Also, using streamline simulation for such waterflood design optimization appeared fit for purpose. First, it brought an improved efficiency as the workflow required running several scenarios. Second, it allowed to not only consider traditional tools to improve recovery factor but also solutions making use of the understanding of model connectivity the streamline simulator provides.
Wettability Alteration in Carbonate Rocks by the Low Salinity Water using a High-Speed Centrifuge
Authors: Almeida Sarah Bernardes de , Winter Alessandra , Pires Luis Oliveira , Trevisan Osvair Vidal 
Published: October 2019

Abstract
Carbonate reservoirs are characterized by neutral or oil-wet surfaces and the injection of water as a secondary recovery method may result in low oil recovery factors. The injection of low salinity brines has shown to be a method that can lead to significant additional oil recoveries, since they promote alteration of the surface wettability towards a more water-wet condition. Several studies indicated that some ions present in the injected brine (Ca2+, Mg2+ and SO42-) are able to act in the ionic exchanges that promote the wettability alteration. Also, the decrease of the concentration of Na+ and Cl- resulted in an additional oil recovery factor in some studies. The studies of oil recovery at laboratory scale are usually performed in Amott's cells or by coreflooding. In this paper, the study of oil recovery using a high-speed centrifuge (HSC) is proposed in an innovative way with the aim to validate it as an apparatus for the study of wettability alteration. For this, six Silurian dolomite outcrop cores were used. Primary drainage process was performed on the HSC to establish the initial water saturation condition. Formation water and oil from a Brazilian pre-salt field with 2% weight of naphthenic acid were used as the saturation fluids. The cores were aged at 110 °C for 20 days to alter the initial water-wet condition. Two sets of tests were performed in the HSC to study the effects of the reduction of Na+ and Cl- ions in seawater composition. Additional oil recovery was observed using brine depleted of Na+ and Cl- ions. Besides, it was observed the influence of the sample permeability on oil recovery. The high concentration of Na+ and Cl- ions hinder the access of the potential ions (Ca2+, Mg2+ and SO42-) to the rock surface and, as consequence, hamper the wettability alteration mechanism. Removing these ions, the potential ions can reach easier to the surface and alters its wettability towards a more water-wet condition, promoting the additional oil recovery. Thus, the results showed that HSC could be used as preliminary apparatus for the wettability alteration studies in carbonate samples.
Financial Planning of Maintenance Services for Atmospheric Hydrocarbon Filled Tanks
Authors: Modica Eduardo José , Federico Honda Heitor 
Published: October 2019

Abstract
Resource scheduling, particularly when applied to hydrocarbon filled atmospheric tanks, challenges planning professionals. When presented with new projects, it is important to maintain the new costs coherent and in line with the company's past portfolio. An ill formed financial schedule leads to problems within contracts as well as in the company's regular activities. Although sometimes it is not as easily perceived as operational losses, one can easily see that such wrong predictions invariably lead to incorrect resource allocation leading to financial misuse of the company's funds. Such concern is notably true for the Brazilian petroleum industry, especially within the transport sector. The sheer size of the projects and the assets involved – mainly due to the country’s continental territory - make any deviation of critical importance. Therefore, to establish a solid methodology in order to obtain parameters and foreseen the resource expenditure as well as operational impacts would be of great value for companies trying to assess opportunities, targets, resource allocation and return rates.
Throughout the current research, the authors assessed over thirty physical-financial project plans from a well-known Brazilian pipeline company. From this bulk of projects schedules, twenty were further selected for a more detailed analysis based on similarities - among them - in complexity and investment sizes. The projects were then normalized according to their total capital and time expenditure. The resulting normalized project schedules provided the basis for the methodology presented through the text.
The resulting methodology, presented in this paper, aims at assisting planning professionals to infer future financial needs to new projects, as long as similarities constraints are respected. The technique is able to provide data to engineers, planning professionals and managers make a more informed decision. Furthermore, the methodology demands that the resulting database must be updated as new projects are included in the company's portfolio. The database should acquire a Bayesian character in order to provide actual information.
Drilling to Well Integrity- Multidisciplinary Approach using Advanced Multipole Sonic-While-Drilling Technology Saves Rig Time
Authors: Al-Fawwaz Abdullah Abdulrahman , Al-Ajmi Fahad , Razwan Kashif , Ghosh Krishnendu , Naqeeb Ibrahim Abdulrahman , Torres Portillo Maria Andrea 
Published: October 2019

Abstract
In recent years, as the cost of drilling, evaluating, and completing wells continues to rise in offshore, operators are seeking new technologies that offer measurements comparable to proven wireline logging technologies. Logging while drilling (LWD) technology has progressed swiftly in recent time to address the need for saving rig time by enabling real-time informed decisions for drilling efficiency and risk management. LWD sonic is traditionally used to log formation slowness in the open hole but increasingly being used in cased hole to optimize logging time and evaluate top of cement.
Before starting a hole section, well integrity is a critical input to decide if it is safe to drill ahead or additional measures are required to assure operation safety. In this case study we demonstrate that both, measuring formation slowness in open and cased hole along with evaluating the success of a cementing operation can be obtained with the latest generation of LWD sonic tools while drilling, thus saving rig time, simplifying operations, and assuring operation safety and integrity.
In this case study we demonstrate that formation slowness can also be recorded in cased hole with LWD tools when the cement bonding is sufficient to allow good coupling. This advanced technique of logging formation slowness through casing with LWD can complement conventional logging, or even save an additional logging run in some cases, and therefore result in significant savings to the operator. Where azimuthal cement evaluation is not a strict requirement, knowing the top-of-cement (TOC) from LWD can help to confirm well integrity without adding rig-time. This in turn will help to take on-time decision to plan additional logging requirements for advanced analysis
Test Results of a Comparison between a Conventional and Low Shear Valve and Its Effect on Water/Oil Separation
Authors: Monteiro Andre Sampaio , Da Silva Fabrício Soares 
Published: October 2019

Abstract
During the last years, a lot of work have been done focusing on development of low shear valves solutions to be applied on petroleum primary process plants. The main goal of the low shear valve is to generate water-in-oil (WiO) and oil-in-water (OiW) emulsions that can be easier treated by the separation process, when compared with emulsion generated by conventional valves.
This paper presents experimental results of a comparison between a commercial low shear valve and a conventional valve. Both valves were installedin parallel on a test loop and the fluids used for all test matrix points were potable water mixed with Petrobras Marlim Crude Oil. The test matrix includes variation of differential pressure on valves, flowrates and concentration of water/oil. Samples were collected downstream of both valves and led to settle into several residence times. The degree of contamination of both phases were analyzed for all residence times.
The benefit of the application of low shear valve was quantified for all test conditions and the results were very promissory. The pressure drops across valves were selected considering typical values observed at Petrobras choke valves and control level valves. For almost all test matrix's points the emulsion generated by the low shear valve showed at least a slight benefit, allowing have better water quality after settling. The low shear valve solution showed to be a promissory technology but the magnitude of the benefit is very influenced by valve process operation conditions.
Optimizing Rotary Shoulder Connection for Drilling Program
Authors: Bhukya Shankar , Plessis Guillaume , Hussain Raza 
Published: October 2019

Abstract
The drill string may be considered a minute component of the complex drilling program; however, it is more essential to the program than often thought. It has also become more challenging to select the right rotary shoulder connection when many are available to the drilling engineer. There is a wide choice of technologies available that have different functionalities and limitations. One may also be hard-pressed with selecting the right drill pipe as choices can be quite confusing even to specialists, yet the drilling engineer must select the correct drill string and drill pipe connection. If not properly optimized, he/she may either over-engineer or under-engineer the drill string design for the said program and have to deal with the consequences.
Often enough, original equipment manufacturers (OEM) are involved in application work, helping drilling engineers find a workable solution for a project they are working on. Finding an optimized selection of components to be assembled in as string that will be used to drill and complete a field development is essential. It requires choosing tools that will be able to resist the torsional, tensile, pressure loads, optimizing hydraulics as well as resisting fatigue and exposure to corrosive fluids.
A number of technologies are available that will help to deliver challenging prospects or help maintain the cost of operation as minimum as possible. This paper lists field-proven solutions that are trending in the industry, with the hope that adopting the appropriate ones will deliver results by improving drilling and completion efficiency.
Detection of clinically relevant epidermal growth factor receptor pathway mutations in circulating cell-free tumor DNA using next generation sequencing in squamous cell carcinoma lung
Authors: Govind Kanakasetty Babu , Koppaka Deepak , Dasappa Lokanatha , Jacob Linu Abraham , Babu Suresh M.C. , Lokesh N. Kadabur , Haleshappa Rudresha Antapura , Rajeev L.K. , Saldanha Smitha Carol , Abhishek Anand , Asati Vikas , Chethan R. , Ramprasad Vedam Laxmi 
Published: October 2019

Abstract
Background: Limited repertoires of targets are available in the management of squamous cell carcinoma lung. In this study, we analyzed epidermal growth factor receptor (EGFR), RAS, BRAF mutations in lung cancer patients of squamous cell histology using next-generation sequencing (NGS) on the circulating cell-free DNA (cf-DNA). Materials and Methods: In this prospective observational study, patients with squamous cell carcinoma lung, either newly diagnosed or having a progressive disease on prior therapy were eligible. Cf-DNA was extracted from peripheral blood and analyzed for EGFR, KRAS, NRAS, and BRAF mutations using NGS. Results: Sixteen patients were enrolled over a period of 1 month. The mean cf-DNA quantity extracted from the plasma was 96.5 ng (range, 15–200 ng). Eight clinically relevant mutations in the EGFR pathway were identified. These include Exon 21 mutations in 4 patients, Exon 20 mutation in onepatient, complex mutations with coexisting Exon 21 and Exon18 in one patient and KRAS Exon 2 mutations in two patients. Conclusion: cf-DNA is a minimally invasive technique for detection of clinically relevant mutations in lung cancer patients. The use of novel advanced techniques such as NGS may help in detecting EGFR pathway mutations in patients with squamous cell carcinoma lung.
Head-and-neck paragangliomas: An overview of 54 cases operated at a tertiary care center
Authors: Singh Shuchita , Madan Renu , Singh Manoj Kumar , Thakar Alok , Sharma Suresh Chandra 
Published: October 2019

Abstract
Background: Head-and-neck paragangliomas (HNP’s) are rare autonomic neoplasms associated with high morbidity and mortality. We aimed to study epidemiology, clinicopathological correlation, and management of HNP to assist clinicians in advocating the most appropriate therapy. Materials and Methods: Epidemiological parameters, including age and sex distribution, clinical presentation, tumor classification, familial predisposition, multicentricity, and treatment modalities adopted, were analyzed in this retrospective analysis of 54 patients of HNP. Results: Age ranged from 15 to 85 years, with a female preponderance. Among all HNP, carotid body tumor (CBT) (48.1%) was the most common, followed by Glomus Jugulare (24.1%). Majority of the patients presented with neck swelling associated with nerve palsies. A preoperative neurological deficit was most commonly observed with Glomus jugulotympanicum (68.4%). Conclusion: CBT is the largest and most common paraganglioma in our study. The familial occurrence warrants meticulous screening for multifocality. Tumor location, neurovascular involvement, malignant potential, and patient factors should guide the designing of management options.
Organochlorine pesticide exposure as a risk factor for breast cancer in young Indian women: A case–control study
Authors: Kaur Navneet , Swain Srikant K , Banerjee Basudev D , Sharma Tusha , Krishnalata Thammineni 
Published: October 2019

Abstract
Background: Incidence rates of breast cancer are showing an increasing trend in young women (≤40 years) in India. Risk for breast cancer in this age group can be attributed only partially to various known risk factors. Environmental exposure to organochlorine (OC) compounds has been identified as a potential risk factor. However, the possible role of OC compounds in increasing breast cancer risk in young women has not been explored. This case–control study was planned with the objectives to assess the serum levels of OC compound in a North Indian population of young women. Materials and Methods: Forty-two patients of breast cancer ≤ 40 years age and 42 age-matched controls were evaluated for exposure to OC compounds by performing assays in blood samples for pesticides such as dichlorodiphenyltrichloroethane (DDT) and its metabolites DDD and DDE; dieldrin; aldrin; methoxychlor, heptachlor; α-endosulfan; β-endosulfan; and hexachlorocyclohexane and its isomers (α, β, and γ). Results: Young women with breast cancer were found to have significantly higher serum levels of all the OC compounds except aldrin, p, p’ DDT, and methoxychlor. Conclusions: Exposure to OC pesticides could be an important modifiable risk factor for breast cancer, especially in younger women.
Stejarul roșu (Quercus rubra L. syn. Q. borealis F. Michx.) la Zăbala-Covasna: studiu de caz
Authors: Ușurelu Beatrice-Maria , Timar Kincsö-Katalin , Stan Gabriela-Elena , Benedek-Bloju Adrian-Florin , Cioacă Stelian-Ionuț , Nicolescu Valeriu-Norocel 
Published: October 2019

O plantație pură de stejar roșu, 2 x 1 m (5000 puieți ha-1), a fost instalată în parcul castelului Mikes (Zăbala, județul Covasna) în primăvara anului 2012. Condițiile ecologice locale (temperatura medie anuală 7,6 oC, precipitațiile medii anuale 616 mm, Districambosol tipic) sunt de bonitate mijlocie pentru stejarul roșu, ca și pentru vegetația naturală (goruneto-făgete). O lucrare de curățiri a fost aplicată în cele două suprafețe de probă (SP) de cercetare / demonstrative instalate în aprilie-mai 2019, care a prezentat câteva caracteristici interesante înainte de intervenția la vârsta de 7 ani: (i) desime 4692 arb ha-1 (SP1) și 3692 arb ha-1 (SP2); (ii) diametrul mediu aritmetic 4,84 cm (SP1) și 5,01 cm (SP2); peste 40% din arbori, în ambele SP, au avut diametre peste 5 cm (creșterea medie în diametru peste 7 mm an-1); (iii) diametrul mediu al suprafeței de bază: 5,05 cm (SP1) și 5,12 cm (SP2); (iv) înălțimea medie aritmetică: 6,48 m (SP1) și 6,77 m (SP2); peste 40% din arbori, în ambele SP, au avut peste 7 m înălțime (creșterea medie în înălțime peste 1 m an-1); (v) înălțimea corespunzătoare diametrului mediu al suprafeței de bază: 6,75 m (SP1) și 6,88 m (SP2). Lucrarea de curățiri a fost predominant de jos și de intensitate puternică (SP1), respectiv moderată (SP2), pe număr de arbori, și moderată (ambele SP) pe suprafață de bază. Arboretul rămas, în ambele SP, este încă des (desimea peste 3200 arb ha-1; suprafața de bază peste 7 m2 ha-1), cu diametre medii și înălțimi medii mai mari decât cele inițiale, respectiv indici de zveltețe mai mici. Numărul de „potențiali” arbori de viitor, aleși și însemnați cu vopsea înainte de curățire pe baza criteriilor vigoare-calitate-spațiere, a fost mai mare (538 arb ha-1 în SP1, 461 arb ha-1 în SP2) decât în alte țări europene (maximum 400 arb ha-1). Deoarece o parte din acești arbori prezintă înfurciri la înălțimi sub 4 m, doar 150-200 arb ha-1 din aceste exemplare vor fi selectate de-a lungul fazei de păriș, când se dorește aplicarea unei silviculturi pe arbore, care urmărește creșterea liberă (fără competiție la nivelul coroanei) a acestora.
The New Aesthetics of Deculturation
Authors: Botz-Bornstein Thorsten 
Published: October 2019

What are the predominant aesthetics of the twenty-first century? Thorsten Botz-Bornstein argues that deculturation, embodied by the conspicuous vulgarity of kitsch, is the overriding visual language of our times.
Drawing on the work of Islam scholar Olivier Roy, who argued that religious fundamentalism arises when religion is separated from the indigenous cultural values, Botz-Bornstein shows that the production of ‘absolute’ truths through deculturation also exists in contemporary education. The neoliberal environment has separated learning from culture by emphasizing standardization and quantified learning outcomes. In a globalized environment, the idea of culture is no longer available as a referent; instead we are taught to rely on the culturally neutral term ‘excellence’. For BotzBornstein, this is an absolute value similar to the ‘truth’ of religious fundamentalists.
Similarly, kitsch is what happens when aesthetic values are separated from cultural contexts. Kitsch is aesthetic fundamentalism. Kitsch aesthetics are an aesthetics of excellence. The consumption of kitsch can be understood as an intrinsically narcissistic impulse, reinforced by social media, individuals recycling their own selves without being confronted with the culture of the “other.” The existence of self-centred “alternative truths”, fake news and conspiracy theories and selfies are linked together in the fundamentalism–neoliberalism–kitsch pattern.
Including analysis of the intersections of ‘cute’, ‘excellent’, ‘sublime’, and ‘interesting’ in contemporary aesthetic culture, this is a journey through philosophy, psychology and cultural theory, redefining a new aesthetics of deculturation.
Cornelius’s Fantasma
Authors: Roberts Martin 
Published: October 2019

In Tokyo in the early 1990s, an indie band called Flipper’s Guitar was at the forefront of a new wave in Japanese popular music known as Shibuya-kei. The band’s founder, Keigo Oyamada, would go on to produce, under the name Cornelius, a series of albums that are among the most innovative in Japanese popular music of the past two decades. Oyamada’s third album under his Cornelius alter-ego, Fantasma (1997), played a key role in putting J-pop on the world map for Western music fans, and Oyamada himself is today one of the most respected figures in the Japanese music industry. This book tells the story of Fantasma’s emergence from the Shibuya-kei scene and considers the wider impact of Oyamada’s work both internationally and on Japanese popular music today.
33 1/3 Global, a series related to but independent from 33 1/3, takes the format of the original series of short, music-based books and brings the focus to music throughout the world. With initial volumes focusing on Japanese and Brazilian music, the series will also include volumes on the popular music of Australia/Oceania, Europe, Africa, the Middle East, and more.