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宝北区块构造应力场模拟及裂缝预测
引用本文:王红坤,马家虎,梁杰锋,王海涛,张云,杨瑞莎. 宝北区块构造应力场模拟及裂缝预测[J]. 石油地质与工程, 2022, 0(1): 50-56
作者姓名:王红坤  马家虎  梁杰锋  王海涛  张云  杨瑞莎
作者单位:1.中国石化河南油田分公司勘探开发研究院;2.延长油田股份有限公司勘探开发研究中心;3.中国石化勘探开发研究院
基金项目:国家自然科学基金“核磁共振技术研究裂缝性致密油藏注二氧化碳提高采收率机理”(51504283)。
摘    要:以焉耆盆地博湖坳陷宝北区块为例,对由冲起构造模式控制的致密砂岩储层的裂缝发育特征进行系统研究,并在此基础上,对古应力场进行模拟,进而对研究区裂缝发育区进行预测.结果表明:宝北区块致密砂岩储层中裂缝发育,主要为天然构造缝,包括剪切裂缝、张性裂缝和挤压裂缝.采用三维有限元法进行精细地质建模和古构造应力场模拟,恢复了目的层在...

关 键 词:宝北区块  致密砂岩  应力场模拟  裂缝预测

Simulation of tectonic stress field and fracture prediction in Baobei block
WANG Hongkun,MA Jiahu,LIANG Jiefeng,WANG Haitao,ZHANG Yun,YANG Ruisha. Simulation of tectonic stress field and fracture prediction in Baobei block[J]. Petroleum Geology and Engineering, 2022, 0(1): 50-56
Authors:WANG Hongkun  MA Jiahu  LIANG Jiefeng  WANG Haitao  ZHANG Yun  YANG Ruisha
Affiliation:,Exploration & Development Research Institute of Henan Oilfield Company,SINOPEC,Exploration and Development Technology Research Center of Yanchang Oilfield Co., Ltd.,Research Institute of Petroleum Exploration and Development,SINOPEC
Abstract:Taking Baobei block of Bohu depression in Yanqi Basin as an example, the fracture development characteristics of tight sandstone reservoir controlled by thrust structure model are systematically studied. On this basis, the paleo-stress field is simulated, and then the fracture development area in the study area is predicted. The results show that the fractures in the tight sandstone reservoir of Baobei block are developed,mainly natural structural fractures, including shear fractures, tensile fractures and compression fractures. Fine geological modeling and paleotectonic stress field simulation are carried out by 3D finite element method, the paleo stress field of the target layer under the thrust structure mode is restored, and the development degree of fractures is quantitatively predicted by comprehensive fracture rate. The fracture prediction results are consistent with the actual geological conditions, which provides reliable basic geological data for the development and adjustment of Baobei reservoir. Meantime, it provides a feasible method for the effective prediction of this kind of tight sandstone fractured reservoir.
Keywords:Baobei block  dense sandstone  stress field simulation  fracture prediction
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