Detection of High-Potential Oil and Gas Fields Using Normalized Full Gradient of Gravity Anomalies: A Case Study in the Tabas Basin, Eastern Iran

2010 ◽  
Vol 168 (10) ◽  
pp. 1851-1863 ◽  
Author(s):  
Hamid Aghajani ◽  
Ali Moradzadeh ◽  
Hualin Zeng
Keyword(s):  
Oil And Gas ◽  
Gravity Anomalies ◽  
High Potential ◽  
Oil And Gas Fields ◽  
Eastern Iran ◽  
Normalized Full Gradient ◽  
Gas Fields

scholarly journals Well selection in depleted oil and gas fields for a safe CO 2 storage practice: A case study from Malaysia

Petroleum ◽  
2017 ◽  
Vol 3 (1) ◽  
pp. 167-177 ◽  
Author(s):  
Arshad Raza ◽  
Raoof Gholami ◽  
Reza Rezaee ◽  
Chua Han Bing ◽  
Ramasamy Nagarajan ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Oil And Gas Fields ◽  
Gas Fields

scholarly journals Ground Deformation Revealed by Sentinel-1 MSBAS-InSAR Time-Series over Karamay Oilfield, China

2019 ◽  
Vol 11 (17) ◽  
pp. 2027 ◽  
Author(s):  
Chengsheng Yang ◽  
Dongxiao Zhang ◽  
Chaoying Zhao ◽  
Bingquan Han ◽  
Ruiqi Sun ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Surface Deformation ◽  
Ground Deformation ◽  
Elastic Half Space ◽  
Dislocation Model ◽  
Oil And Gas Fields ◽  
Subsurface Fluid ◽  
Safety Assessments ◽  
Gas Fields

Fluid extraction or injection into underground reservoirs may cause ground deformation, manifested as subsidence or uplift. Excessive deformation may threaten the infrastructure of the oilfield and its surroundings and may even induce earthquakes. Therefore, the monitoring of surface deformation caused by oil production activities is important for the safe production of oilfields and safety assessments of surrounding infrastructure. Karamay oilfield is one of the major oil and gas fields in China. In this study, we take the Karamay oilfield in Xinjiang as a case study to detect surface deformation caused by subsurface fluid injection. Sentinel-1A images of 32 ascending (Path 114) and 34 descending (Path 165) tracks spanning March 2017 to August 2018, were used to derive vertical and horizontal deformation over Karamay oilfield using the MSBAS-InSAR method. The observed two-dimensional deformation exhibited significant vertical and east-west deformation in this region. The maximum uplift and horizontal velocity was approximately 160 mm/year and 65 mm/year, respectively. We also modeled one of the typical deformation zones using a dislocation model in a homogenous elastic half-space.

QUANTITATIVE ANALYSIS OF THE RELATIONSHIP BETWEEN THE SIZE AND LOCATION OF OIL AND GAS FIELDS WITH GRAVITATIONAL ANOMALIES OF THE FERGANA DEPRESSION

2020 ◽  
Vol 2020 (3) ◽  
pp. 95-112
Author(s):  
R Umurzakov ◽  
◽  
S Rabbimkulov
Keyword(s):  
Oil And Gas ◽  
Gravity Anomalies ◽  
Geological Structure ◽  
Gas Content ◽  
Effective Volume ◽  
Oil And Gas Fields ◽  
Local Gravity ◽  
Gas Fields ◽  
The Impact ◽  
Gravitational Anomalies

Based on the analysis of published materials, it is noted that the degree of connection between the indicators of the anomalies of the gravitational field and oil and gas content remains unclear. The aim of the research was to study the nature of the dependence and assess the degree of connection between the size and location of oil and gas fields with gravitational anomalies using the example of the Fergana oil and gas region. To solve this problem, the published material on the geological structure and data on the sizes (effective volume) of deposits, as well as data on deep anomalies of the gravity field in the Fai reduction, were used. The study involved about 70 deposits. Analysis of variance showed that the “influence” of the deep anomaly factor on the effective volume of the fields in the Fergana depression is significant and reliable with a probability of 0.99. At the same time, the share of the influence of this factor on the effective volume of oil deposits in relation to the total impact of all factors is 42%, and for oil and gas - 62%. This testifies to the significant influence of deep subcrustal processes that create corresponding gravitational effects on the formation of the size and location of oil and gas fields in the Fergana depression. According to local gravity anomalies, the impact on the location and effective volumes of deposits is significant, but the reliability is low. The degree of influence on them remains unclear. The results obtained can be used to develop methods for forecasting promising areas for performing high-priority geological exploration works.

scholarly journals Noise Evaluation in oil and gas Fields and associated risk assessment

2021 ◽  
Author(s):  
Wahid Salem Alzmzam ◽  
Walid Bashir Alfaghi
Keyword(s):  
Risk Assessment ◽  
Oil And Gas ◽  
Sulfur Recovery ◽  
Gas Processing ◽  
Ishikawa Diagram ◽  
Oil And Gas Fields ◽  
Recovery Unit ◽  
Noise Evaluation ◽  
Gas Fields

Abstract This work investigates the level of noise in oil and gas fields and its impact on the health of the operators, visitors, and trainees, as well as controlling noise within acceptable levels in the workplace by proper measurement. Risk assessment is done to identify the associated hazards of particular activities or tasks in the fields. Sulfur recovery unit (SRU) at a gas processing complex is the case study which consists of three production plants.Many master points were randomly selected, where workers are present. Therefore, in order to sufficiently measure the level of noise, the measurement of the noise level was performed in different periods of time within the years 2014-2017 and was compared with OSHA limits. Results show that most of the gathered noise field data were beyond the permissive limits of OSHA (85 dB). Ishikawa Diagram depicts the analysis of cause and effect of over limits readings which are rotating machines, maintenance activities, steam leakages, fluid flow, and gas flaring.Finally, the risk assessment presents that such workplaces may present a high noise risk score that could harm the workers.

To SSIV, or not to SSIV: that is the question

2009 ◽  
Vol 49 (1) ◽  
pp. 13
Author(s):  
Steven Cooper ◽  
Fiona Aoun
Keyword(s):  
Oil And Gas ◽  
Large Diameter ◽  
Oil And Gas Industry ◽  
Design Teams ◽  
Gas Industry ◽  
Oil And Gas Fields ◽  
The People ◽  
The World ◽  
Gas Fields

Sub Sea Isolation Valves (SSIVs) are normally considered for installation on the majority of facility builds. They first started coming to prominence in the world of safety following the Piper Alpha tragedy in 1988, where 167 people died and the platform was destroyed as a result of an explosion and fire. The aim of SSIVs is to protect the people on the platforms by limiting the amount of hydrocarbon available for a jet fire. Reducing the severity of a jet fire protects the integrity of manned living quarters in the event of an issue with the pipeline. This theory still holds true today but twenty plus years on SSIVs are not always included in new facility designs. Oil and gas fields developed in the future are more likely to be in more remote locations with large diameter pipelines tied back to onshore processing facilities. With well bays being replaced by subsea wells and flowlines it would be thought that the SSIV would now be man’s best friend; however, with the oil and gas industry showing a declining trend in fatalities around the world and with design improvements preventing and mitigating the occurrence of major accident events, many operators are questioning the added benefits of the SSIV. This paper debates the use of the SSIV and explores the issues over which many design teams deliberate. It considers the positives and the negatives associated with the SSIV and illustrates why an SSIV installation is a case-by-case prospect. A case study using a risk-based approach for installing the SSIV as part of a design concept is used to help illustrate this point.

RIL’s Strategic Alliance with BP

2019 ◽  
Vol 16 (2) ◽  
pp. 218-239
Author(s):  
Brahmadev Panda ◽  
N. M. Leepsa
Keyword(s):  
Strategic Alliance ◽  
Oil And Gas ◽  
Technical Expertise ◽  
British Petroleum ◽  
Oil And Gas Fields ◽  
Pros And Cons ◽  
Gas Fields ◽  
The Impact ◽  
Post Period

Reliance Industries Ltd. (RIL), the largest private sector company in India, invested in oil and gas fields by winning the bid under New Exploration and Licensing Policy in the year 1999 and aspired to exploit the growing Indian energy market. Though RIL developed the KG-D6 gas blocks in record time, soon after, it was engulfed with some issues like lack of technical expertise, geological complexities and huge capital expenditures. To tackle these issues RIL was hunting for a partner with technical expertise. Meanwhile, British Petroleum (BP) was also grappling with some serious hurdles and eyeing for a new market. India was the best bet for BP as it has recognized the potential of the subcontinent and its earlier stint with RIL inspired BP to invest in India. This case study analyses whether the much-anticipated deal was successful or not. This case study discusses the entire background, issues and difficulties encountered by RIL and BP prior to the deal. Further, we investigate the impact of the deal on RIL by analyzing its operational efficiency, financial performance and stock gains in the pre and post period of the alliance. This is an analytical case study based on the secondary databases, where it analyses the various pros and cons of the alliance between RIL and BP.

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