库车坳陷现今构造应力场与天然气分布关系

›› 2012, Vol. 33 ›› Issue (4): 1-1.

• 论文 •

库车坳陷现今构造应力场与天然气分布关系

张凤奇1，2，王震亮2，鲁雪松3，宋玉斌4，盛晓峰3

(1. 西安石油大学地球科学与工程学院,西安 710065;2. 西北大学地质学系,西安 710069;3. 中国石油勘探开发研究院,北京 100083;4. 中国石油塔里木油田分公司塔中勘探开发项目经理部,新疆库尔勒 841000)

出版日期:2019-01-01 发布日期:1905-07-11

Relationship Between Present Tectonic Stress Field and Natural Gas Distribution in Kuqa Depression, Tarim Basin

ZHANG Fengqi1,2, WANG Zhenliang2, LU Xuesong3, SONG Yubin4, SHENG Xiaofeng3

(1.School of Petroleum Resources, Xian Petroleum University, Xian, Shaanxi 710065, China; 2.Department of Geology, Northwest University, Xian, Shaanxi 710069, China; 3.Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China; 4.Tazhong Exploration and Development Management Department, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000,China)

Online:2019-01-01 Published:1905-07-11

摘要/Abstract

摘要： 运用有限元数值模拟，确定库车坳陷现今平面和剖面的构造应力，总结其分布特征，并对构造应力与天然气分布的关系进行分析。盐下储集层在不同构造带最大主压应力分布不均，呈现出北部大，南部相对小，且大致呈近东西向条带状展布的分布格局，构造挤压强烈的北部区带内形成了诸多相对低应力区；区域性膏盐岩盖层及以上岩层最大主压应力较小，盐下岩层最大主压应力普遍较大，且埋深较大的三叠系、侏罗系烃源岩层最大主压应力较白垩系储集层普遍大，构造挤压强烈的克拉苏构造带北部克拉区带断背斜和断块、南部克深区带背斜顶部和断背斜靠近断层一侧上部均形成了相对低应力区。目前已发现天然气藏大都位于现今最大主压应力的相对低值区。

Abstract: The present plane and sectional tectonic stresses were recovered by finite element numerical simulation, their distribution characteristics were summarized, and the relationship between the tectonic stress and the natural gas distribution was analyzed. The results show that in plane, the distribution of maximum principal stress of the sub?salt reservoir in different structural zones is not uniform and characterized by bigger stress in the north than in the south, roughly band?distributing toward near E?W, in the northern part with serious structural compression formed many low?stress areas; in cross section, the maximum principal stress is smaller at the territorial gypsum?salt caprock and its overlying strata, and bigger at the sub?salt strata; and the maximum principal stresses of the Triassic and Jurassic source rocks are generally bigger than that of overlying Cretaceous reservoir. The relative low?stress areas are formed in Kela faulted anticlines and fault blocks in Kelasu structural belt with strong tectonic compression, anticlinal apex and the side of faulted anticline in the upper close to the fault of Keshen zone. The natural gas pools discovered in Kuqa depression up to now are located at the relatively low areas of maximum principal stress

中图分类号:

TE111.1

张凤奇1，2，王震亮2，鲁雪松3，宋玉斌4，盛晓峰3. 库车坳陷现今构造应力场与天然气分布关系[J]. , 2012, 33(4): 1-1.

ZHANG Fengqi1,2, WANG Zhenliang2, LU Xuesong3, SONG Yubin4, SHENG Xiaofeng3. Relationship Between Present Tectonic Stress Field and Natural Gas Distribution in Kuqa Depression, Tarim Basin[J]. , 2012, 33(4): 1-1.

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库车坳陷现今构造应力场与天然气分布关系

Relationship Between Present Tectonic Stress Field and Natural Gas Distribution in Kuqa Depression, Tarim Basin

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