鄂尔多斯盆地天环坳陷北段上古生界裂缝特征及对气水分布的影响

刘新社; 任德生; 候云东; 王怀厂

鄂尔多斯盆地天环坳陷北段上古生界裂缝特征及对气水分布的影响

1.
中国石油长庆油田公司勘探开发研究院, 陕西西安 710018
2.
北京油谷科技发展有限公司, 北京 102209

基金项目:

中国石油重大科技专项 2016E-0502

详细信息

作者简介:
刘新社(1964-), 男, 博士, 主要从事构造地质、构造应力场及其应用研究。E-mail:lxs_cq@petrochina.com.cn

中图分类号: P618.13
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- 被引次数: 0
出版历程
- 收稿日期: 2016-12-10
- 刊出日期: 2017-10-01

FRACTURE CHARACTERISTICS OF UPPER PALEOZOIC AND ITS INFLUENCE ON GAS AND WATER DISTRIBUTION ON THE NORTHERN SECTION OF THE TIANHUAN DEPRESSION, ORDOS BASIN

1.
Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi'an 710018, Shannxi, China
2.
Beijing Oil Valley Technology Development Co., Ltd., Beijing 102209, China

摘要

摘要: 针对鄂尔多斯盆地天环坳陷上古生界裂缝的类型、成因及分布开展野外露头、岩心宏观及镜下微观裂缝的观察、描述与测量，并结合成像测井分析等资料，明确构造裂缝系统对气水分布的控制作用。研究结果证实鄂尔多斯盆地天环坳陷北部地区上古生界地层发育了不同组系、规模、力学性质及不同产状的构造裂缝系统，构造裂缝系统是研究区天然气发生垂向运移的主要通道。构造裂缝发育的差异性对气水分布起到了一定的调整作用，是导致研究区气、水分布复杂化的主要原因。
- 鄂尔多斯盆地 /
- 天环坳陷 /
- 构造裂缝 /
- 成像测井 /
- 气水分布
Abstract: In connection with types, causes and distributions of the upper Paleozoic fracture in the Tianhuan Depression, Ordos Basin, observations, descriptions and measurements of outcrops, core macroscopic and microscopic microcracks were carried out. Combined with the analysis of logging logs, the results show that tectonic fracture system with different groups, sizes, mechanical properties and structures was developed in the upper Paleozoic strata in the northern part of the Tianhuan Depression, Ordos Basin and it has the control effects on the gas and water distribution. The tectonic fracture system is the main channel for the vertical migration of natural gas in this area. The individual differences of tectonic fractures play a certain role in regulating the distribution of gas and water, which is the main reason for the complicated gas and water distribution in this area.
- The Ordos basin /
- the Tianhuan depression /
- tectonic fracture /
- imaging logging /
- gas and water distribution

HTML全文

图 1 研究区位置图

Figure 1. Location map of the study area

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图 2 天环坳陷上古生界露头区宏观构造裂缝特征

Figure 2. Characteristics of macroscopic tectonic fractures in upper Paleozoic outcrop area in the Tianhuan Depression

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图 3 天环地区野外剖面裂缝的组系和方位玫瑰花图

Figure 3. Rose diagrams of groups and orientations of the fractures in the field profile of the Tianhuan area

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图 4 天环地区岩芯裂缝分类直方图

(92组数据点)

Figure 4. Histogram of core fracture classification in the Tianhuan area

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图 5 天环地区岩芯裂缝照片

Figure 5. Photos of core fractures in the Tianhuan area

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图 6 天环地区镜下显微裂缝照片

Figure 6. Microscopic photos of fractures in the Tianhuan area

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图 7 天环地区A2井岩芯及成像裂缝对比图

Figure 7. Comparison chart of core and imaging fracture of the A2 well in the Tianhuan area

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图 8 天环地区成像测井解释裂缝线密度柱状对比图

(670组数据点)

Figure 8. Comparison chart of fracture line density columnar by imaging logging interpretation in the Tianhuan area

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图 9 天环地区D1井测井解释及成像测井综合图

Figure 9. Comprehensive chart of well logging interpretation and imaging logging in the D1 well in the Tianhuan area

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图 10 天环地区D3井测井解释及成像测井综合图

Figure 10. Comprehensive chart of well logging interpretation and imaging logging in the D3 well in the Tianhuan area

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图 11 天环地区北部裂缝密度分布平面图

Figure 11. Plane map of the distribution of fracture density in the north of the Tianhuan area

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图 12 裂缝线密度与日产气交汇图

(36组数据点)

Figure 12. Rendezvous map of fracture line density and daily gas (36 sets of data points)

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