Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A study on permeability along strike slip faults in Shunbei reservoir of Tarim Basin, China
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects ( IF 2.9 ) Pub Date : 2020-11-06 , DOI: 10.1080/15567036.2020.1841341
Qiang Wang 1 , Zhixing Ru 1, 2 , Rui Zhao 1 , Chen Yu 1 , Yuqing Liu 1 , Shang Deng 1
Affiliation  

ABSTRACT

For ultra deep strike-slip faults controlled reservoirs, the permeability along the faults directly determines the distribution of favorable reservoirs. The present in-situ stress has a significant influence on the permeability of the faults. Therefore, it is meaningful to study the relationship between in-situ stress and permeability along the strike-slip faults for exploration and development of Shunbei oilfield. Based on seismic and coherent data, a three-dimensional model of strike slip fault in reservoir is established. The size and direction of in-situ stress are determined by rock mechanics test. Combined with drilling history and imaging logging data of typical wells, natural fractures are analyzed. Finally, the slip tendency coefficient of Shunbei 5 strike-slip fault zone is simulated by using the finite element method. It is found that there is a positive correlation between the slip tendency coefficient and permeability along the strike-slip fault. The critical slip tendency coefficient of Shunbei 5 fault zone is 0.35 (the fault is in the critical open state). This study provides a reference for the prediction of favorable reservoir distribution and the selection of drilling targets for Shunbei ultra deep strike-slip fault zones.



中文翻译:

塔里木盆地顺北水库走滑断层渗透率研究

摘要

对于超深走滑断层控制储层,沿断层的渗透率直接决定了有利储层的分布。当前的原地应力对断层的渗透率有重要影响。因此,研究顺滑断层沿地应力与渗透率之间的关系对于顺北油田的勘探开发具有重要意义。基于地震和相干数据,建立了储层走滑断层三维模型。现场应力的大小和方向通过岩石力学测试确定。结合钻井历史和典型井的成像测井数据,对天然裂缝进行了分析。最后,运用有限元方法对顺北5走滑断裂带的滑移趋势系数进行了模拟。发现沿走滑断层的滑移趋势系数与渗透率之间存在正相关关系。顺北5断层带的临界滑动趋势系数为0.35(断层处于临界打开状态)。该研究为顺北超深走滑断裂带的有利储层分布预测和钻井目标的选择提供了参考。

更新日期:2020-11-09
down
wechat
bug