Fracture development regularity and its effects on hydrocarbon accumulations in Paleozoic reservoirs in western Bachu Uplift

Ma Zhongyuan; Yang Hongcai; Huang Wei; Zhang Li; Lan Mingjie

doi:10.11781/sysydz2014S1001

Volume 36 Issue s1

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Article Navigation > PETROLEUM GEOLOGY & EXPERIMENT > 2014 > 36(s1): 1-7

LIU Yong-jian, SHEN Jun, LIU Yi-jian, WANG Lin. AN ARTIFICIAL NEURAL NETWORK-BASED METHOD FOR EVALUATING THE OIL PROSPECTS OF ROCKS[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2000, 22(3): 276-279. doi: 10.11781/sysydz200003276

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Ma Zhongyuan, Yang Hongcai, Huang Wei, Zhang Li, Lan Mingjie. Fracture development regularity and its effects on hydrocarbon accumulations in Paleozoic reservoirs in western Bachu Uplift[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2014, 36(s1): 1-7. doi: 10.11781/sysydz2014S1001

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Fracture development regularity and its effects on hydrocarbon accumulations in Paleozoic reservoirs in western Bachu Uplift

doi: 10.11781/sysydz2014S1001

Research Institute of Exploration and Production, SINOPEC Northwest Company, Urumqi, Xinjiang 830011, China

Received Date: 2014-10-15
Rev Recd Date: 2014-11-20
Publish Date: 2014-12-28

Abstract

Abstract

Based on core, thin section, geophysical and testing data, the fracture development in the Paleozoic reservoirs in the western Bachu Uplift was studied. It was concluded that fractures were most developed in Carboniferous, and second in Ordovician, and least in Silurian and Devonian. The fractures were usually structural ones, among which the oblique fractures were most common, followed by the horizontal and vertical fractures. The fractures in Carboniferous were half-filled by calcite, dolomite, terrigenous clastic and anhydrite, etc, while those in Ordovician were filled or half-filled by calcite and shale. The development of the fractures was controlled by tectonic stress and position, fault, lithology, thickness and rock combination. Fractures could not only improve reservoir performance, but also help karstification and create favorable conditions for the formation of se-condary pores. Fractures were also an important medium in the process of oil and gas migration and accumulation, and controlled oil and gas accumulation.
- Paleozoic,
- fracture,
- accumulation effect,
- western Bachu Uplift,
- Tarim Basin

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沈阳化工大学材料科学与工程学院沈阳 110142

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Fracture development regularity and its effects on hydrocarbon accumulations in Paleozoic reservoirs in western Bachu Uplift

doi: 10.11781/sysydz2014S1001

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Fracture development regularity and its effects on hydrocarbon accumulations in Paleozoic reservoirs in western Bachu Uplift

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