塔里木盆地柯坪隆起推覆作用对断裂封闭性的影响

董立; 徐文明; 赵旭; 王鹏昊; 卢雪梅

doi:10.11781/sysydz201401046

塔里木盆地柯坪隆起推覆作用对断裂封闭性的影响

doi: 10.11781/sysydz201401046

1.
中国石油化工股份有限公司石油勘探开发研究院, 北京 100083
2. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126
3. 中国石油新疆油田分公司勘探开发研究院地球物理所, 乌鲁木齐 830013

基金项目: 国土资源部项目（2009GYXQ02-05）资助。

详细信息

作者简介:
董立（1981-），男，工程师，从事石油与天然气勘探研究。E-mail：dongli.syky@sinopec.com。

中图分类号: TE121.2
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出版历程
- 收稿日期: 2013-01-24
- 修回日期: 2013-12-09
- 刊出日期: 2014-01-28

Influence of SE-direction stress produced during thrusting of Keping Uplift on fault sealing of Selibuya Fault in Tarim Basin

1.
SINOPEC Exploration and Production Research Institute, Beijing 100083, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
3. Geophysical Research Institute, PetroChina Xinjiang Oilfield Company, Urumqi, Xinjiang 830013, China

摘要

摘要: 针对塔里木盆地巴楚隆起南缘色力布亚断裂受柯坪隆起推覆作用的影响，并由此带来的断裂封闭性能的变化，开展了色力布亚断裂的三维地质建模和构造应力场的数值模拟。通过三维应力模拟所得数据，分析在柯坪隆起SE向应力作用下，色力布亚断裂断面滑移率具有差异分布的特点：整体表现为弱滑移特征，断裂中段与南段的滑移率较大。滑移率差异分布的特征是由断裂带空间几何形态决定的。结合色力布亚断裂两侧断褶带先巴扎、亚松迪油气藏的实例分析，认为柯坪隆起SE向应力对色力布亚断裂封闭性的影响仅限于中段与南段。对于色力布亚断裂中段的亚松迪气藏，SE向应力能够促进油气的垂向连通与充注，有利于油气的晚期成藏。
- 应力模拟 /
- 断裂封闭性 /
- 色力布亚断裂 /
- 巴楚隆起 /
- 塔里木盆地
Abstract: To evaluate the effect of the Keping Uplift on the Selibuya Fault in the southern margin of the Bachu Uplift during thrusting, and the consequent fault sealing variation, three-dimensional geological modeling and tectonic stress field numerical simulation of the Selibuya Fault have been carried out. Through the data obtained by three-dimensional stress simulation, it has been concluded that, as the result of SE-direction stress of the Keping Uplift, the sliding ratio on the Selibuya Fault plane is variant. The overall sliding ratio is small while that of the middle and southern parts are relatively bigger. The sliding ratio variation is determined by the space geometry of fault. Based on the analysis of the Xianbazha and Yasongdi oil-gas reservoirs which lie in the fault-fold belt flanked the Selibuya Fault, it is thought that the effect of SE-direction stress is limited to the middle and southern parts of the Selibuya Fault. As to the Yasongdi oil-gas reservoir which lies in the middle part of the Selibuya Fault, the SE-direction stress improves the vertical communication and the charge of oil and gas, which is also beneficial to late accumulation.
- stress simulation /
- fault sealing /
- Selibuya Fault /
- Bachu Uplift /
- Tarim Basin

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