Geochemistry of high-maturity crude oil and gas from deep reservoirs and their geological significance: A case study on Shuntuoguole low uplift, Tarim Basin, western China

AAPG Bulletin ◽  
2021 ◽  
Vol 105 (1) ◽  
pp. 65-107
Author(s):  
Zhonghong Chen ◽  
Zhi Chai ◽  
Bin Cheng ◽  
Hua Liu ◽  
Yingchang Cao ◽  
...  
Keyword(s):  
Crude Oil ◽  
Tarim Basin ◽  
Oil And Gas ◽  
Western China ◽  
Geological Significance ◽  
High Maturity

Origin and accumulation mechanisms of deep paleozoic oil and gas: A case study of the central Tarim basin, western China

2021 ◽  
pp. 109634
Author(s):  
Mingpeng Li ◽  
Zhonghong Chen ◽  
Shiwei Yi ◽  
Shiguo Lin ◽  
Yang Gao ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Oil And Gas ◽  
Western China

Local Buckling in end Expansion of Subsea Pipelines

2014 ◽  
Vol 69 (7) ◽  
Author(s):  
Jaswar Koto ◽  
Abd. Khair Junaidi ◽  
M. H. Hashim
Keyword(s):  
Crude Oil ◽  
Axial Force ◽  
Oil And Gas ◽  
Local Buckling ◽  
Offshore Platform ◽  
Offshore Pipeline ◽  
Specific Rule ◽  
Subsea Pipelines ◽  
Study Development

Offshore pipeline is mainly to transport crude oil and gas from offshore to onshore. It is also used to transport crude oil and gas from well to offshore platform and from platform to another platform. The crude oil and gas horizontally flows on the seabed, and then vertically flows inside the riser to the offshore platform. One of current issues of the oil and gas transportation system is an end expansion caused by the axial force. If the end expansion occurs over it limit can cause overstress to riser. This paper explores the effect of axial force toward local buckling in end expansion. In the study, development of programming in visual basic 2010 firstly was constructed using empirical equation. The programming code, then, was validated by comparing simulation result with actual data from company. As case study, the end expansion for various thicknesses of pipes was simulated. In this programming, DNV regulation is included for checking either design complied or not with regulation. However, DNV regulation doesn’t have specific rule regarding the end expansion but it is evaluated under load displacement control under strain condition.

Geological origins of seismic bright spot reflections in the Ordovician strata in the Halahatang area of the Tarim Basin, western China

2018 ◽  
Vol 55 (12) ◽  
pp. 1297-1311 ◽  
Author(s):  
Wei Yang ◽  
Xiaoxing Gong ◽  
Wenjie Li
Keyword(s):  
Tarim Basin ◽  
Oil And Gas ◽  
High Amplitude ◽  
Hydrothermal Activity ◽  
Hydrocarbon Exploration ◽  
Western China ◽  
Bright Spot ◽  
Gas Reservoirs ◽  
Seismic Section ◽  
Bright Spots

Anomalously high-amplitude seismic reflections are commonly observed in deeply buried Ordovician carbonate strata in the Halahatang area of the northern Tarim Basin. These bright spots have been demonstrated to be generally related to effective oil and gas reservoirs. These bright spot reflections have complex geological origins, because they are deeply buried and have been altered by multi-phase tectonic movement and karstification. Currently, there is no effective geological model for these bright spots to guide hydrocarbon exploration and development. Using core, well logs, and seismic data, the geological origins of bright spot are classified into three types, controlled by karstification, faulting, and volcanic hydrothermal activity. Bright spots differing by geological origin exhibit large differences in seismic reflection character, such as reflection amplitude, curvature, degree of distortion, and the number of vertically stacked bright spots in the seismic section. By categorizing the bright spots and the seismic character of the surrounding strata, their geological origins can after be inferred. Reservoirs formed by early karstification were later altered by epigenetic karstification. Two periods of paleodrainage further altered the early dissolution pores. In addition, faults formed by tectonic uplift also enhanced the dissolution of the flowing karst waters. Some reservoirs were subsequently altered by Permian volcanic hydrothermal fluids.

Multi-layered ordovician paleokarst reservoir detection and spatial delineation: A case study in the Tahe Oilfield, Tarim Basin, Western China

2016 ◽  
Vol 69 ◽  
pp. 53-73 ◽  
Author(s):  
Fei Tian ◽  
Qiang Jin ◽  
Xinbian Lu ◽  
Yuhong Lei ◽  
Likuan Zhang ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Western China ◽  
Tahe Oilfield

scholarly journals Life Prediction of Crude Oil Pipeline to Mitigate Leakages: A Case Study of an NPDC Major Pipeline in OML30, Nigeria

2021 ◽  
Author(s):  
Henry Freedom Ifowodo ◽  
Chinedum Ogonna Mgbemena ◽  
Christopher Okechukwu Izelu
Keyword(s):  
Crude Oil ◽  
Oil And Gas ◽  
Gas Field ◽  
Internal Corrosion ◽  
Oil Pipeline ◽  
Oil And Gas Field ◽  
Pipeline Failure ◽  
Pipeline Failures ◽  
Major Pipeline

Abstract Pipeline leak or failure is a dreaded event in the oil and gas industries. Top events such as catastrophes and multiple fatalities have occurred in the past due to pipeline leak or failure especially when loss of contents was met with fire incidents. It is therefore imperative that the causes of pipeline failure are tackled to prevent or mitigate leak incidents. This is expedient to curb the menace that goes with leak incidents, such as destruction of the environment and ecosystem; loss of assets, finance, lives and property; dangers to workers and personnel, production downtime, litigation and dent to company’s reputation. This work focuses on the investigation of the actual cause of sudden pipeline failures and frequent pipeline leaks that often result to sectional pipeline replacement before the expiration of their anticipated life cycle in OML30 oil and gas field. The pipeline material selected, the standard of the minimum wall thickness of the material, the corrosive nature of the pipeline content and the observed internal corrosion rate were probed. An analysis of the rate of thinning and diminution of the internal wall of the pipeline by monitoring the interior rate of corrosion was used to forecast the remaining life of a crude oil pipeline and predict the life expectancy of a newly replaced or installed pipeline or installed pipeline.

Fracture characterization and modeling of karsted carbonate reservoirs: A case study in Tahe oilfield, Tarim Basin (western China)

2020 ◽  
Vol 112 ◽  
pp. 104104 ◽  
Author(s):  
Jose N. Méndez ◽  
Qiang Jin ◽  
María González ◽  
Xudong Zhang ◽  
Carlos Lobo ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Carbonate Reservoirs ◽  
Western China ◽  
Fracture Characterization ◽  
Tahe Oilfield
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