Characteristics and development mode of the Middle and Lower Ordovician fault-karst reservoir in Shunbei area, Tarim Basin

被引：0
|
作者：
Li Y. [1 ,2 ,3 ]
Qi L. [3 ]
Zhang S. [4 ]
Yun L. [3 ]
Cao Z. [2 ,3 ]
Han J. [2 ,3 ]
You D. [5 ]
Xiao H. [2 ,3 ]
Xiao C. [2 ,3 ]
机构：
[1] Sinopec Petroleum Exploration and Production Research Institute, Beijing
[2] Exploration and Production Research Institute, Sinopec Northwest Oilfield Company, Urumqi, 830011, Xinjiang
[3] Sinopec Northwest Oilfield Company, Urumqi, 830011, Xinjiang
[4] College of Geoscience and Technology, Southwest Petroleum University, Chengdu, 601500, Sichuan
[5] Wuxi Institute of Petroleum Geology, Sinopec Petroleum Exploration and Production Research Institute, Wuxi, 214151, Jiangsu
来源：
Shiyou Xuebao/Acta Petrolei Sinica | 2019年 / 40卷 / 12期
关键词：
Fluid characteristics; Geochemistry; Reservoir development model; Shunbei area; Strike-slip fault;
D O I：
10.7623/syxb201912006
中图分类号：
学科分类号：
摘要：
Under the non-exposure conditions of the Upper Ordovician, a large number of fracture-hole aggregates were developed along the strike-slip fault in Shunbei oilfield, Tarim Basin. Through analyzing based on the high accuracy 3D seismic and well logging information, in combination with drilling, logging and dynamic production data, the research suggests that the main types of reservoir space in Shunbei area of Tarim Basin are shown as large caves or cavities formed by corrosion, developed along the deep and large faults nearby the fracture surface, followed by a great quantity of intergravel/grain cracks and intragravel/grain cracks, and high-angle tectonic fracture, associated with dissolution holes in the fracture zone. Reservoir development is controlled by the strike-slip fault zone connecting to the source rock, characterized with strong horizontal heterogeneity and ideal vertical connectivity; fracture surface is a favorable part of reservoir development. The main strike-slip fault presents obvious segmentation; the fault zone has a complex internal structure, developed with interleaved multiple fault-core structure, directly affecting the reservoir distribution. The comprehensive petrological and geochemical analysis indicates that the most important reforming fluid in the reservoir is dominated by upward deeply-buried rock and hydrocarbon-forming fluid generated by the strike-slip fault connecting to the source rock, partially featured with diagenetic reformation from hydrothermal fluid. The strike-slip fault run through multiple strata with reservoir material foundations, such as the sequence interface, lithologic interface and hydrothermal fluid transport interface, forming a large-scale reservoir body with strong vertical connectivity and horizontal extension. © 2019, Editorial Office of ACTA PETROLEI SINICA. All right reserved.
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页码：1470 / 1484
页数：14
相关论文
共 49 条
  • [1] Lu X., Hu W., Wang Y., Et al., Characteristics and development practice of fault-karst carbonate reservoirs in Tahe area, Tarim Basin, Oil & Gas Geology, 36, 3, pp. 347-3556, (2015)
  • [2] Lu X., Wang Y., Tian F., Et al., New insights into the carbonate karstic fault system and reservoir formation in the southern Tahe area of the Tarim Basin, Marine and Petroleum Geology, 86, pp. 587-605, (2017)
  • [3] Jiao F., Significance and prospect of ultra-deep carbonate fault-karst reservoirs in Shunbei area, Tarim Basin, Oil & Gas Geology, 39, 2, pp. 0207-02167, (2018)
  • [4] Deng S., Li H., Zhang Z., Et al., Characteristics of differential activities in major strike-slip fault zones and their control on hydrocarbon enrichment in Shunbei area and its surroundings, Tarim Basin, Oil & Gas Geology, 39, 56, pp. 878-8889, (2018)
  • [5] Li P., Cui D., Tian H., Fault-karst carbonate reservoir description with GeoEast interpretation sub-system in the Tabei area, Tarim Basin, Oil Geophysical Prospecting, 52, pp. 189-194, (2017)
  • [6] Chang S., Zhuang X., Deng X., Et al., Fault-karst carbonate reservoir prediction: as case study in Ordovician buried hills, HLHT oilfield, Oil Geophysical Prospecting, 52, pp. 199-207, (2017)
  • [7] Xu H., Shen C., Li B., Et al., Fault-karst carbonate reservoir prediction with comprehensive multi-attribute analysis, Oil Geophysical Prospecting, 52, pp. 158-1634, (2017)
  • [8] Deng X., Qiao Z., Wang P., Et al., Origin, development and features of the "fault-dissolved body" reservoir formed in burial stage: a case study of Upper Ordovician Lianglitage Formation in Tarim Basin, Northwest China, Marine Origin Petroleum Geology, 23, 1, pp. 47-55, (2018)
  • [9] Hu Z., Zhang W., Liu Y., Et al., Wave" signal-smoothing and mercury-removing device for laser ablation quadrupole and multiple collector ICP-MS analysis: application to lead isotope analysis, Analytical Chemistry, 87, 2, pp. 1152-1157, (2015)
  • [10] Liu Y., Hu Z., Gao S., Et al., In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard, Chemical Geology, 257, pp. 34-43, (2008)
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