哈拉哈塘地区碳酸盐岩储层应力敏感性对产能的影响  

Influence of Pressure Sensitivity Damage on Fluid Supply Capacity of Carbonate Fracture-vug Reservoir in Halahatang Oilfield

作　　者：闫顺来 刘永雷 王祖军 安海亭 李相文 赵晴 丁嘉 YAN Shunlai;LIU Yonglei;WANG Zujun;AN Haiting;LI Xiangwen;ZHAO Qing;DING Jia(BGP Inc.,China National Petroleum Corporation,Korla 841000,Xinjiang China;GME and Geochemical Surveys,BGP,China National Petroleum Corporation,Zhuozhou 072750,China;China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]中国石油东方地球物理公司研究院,新疆库尔勒841000 [2]中国石油东方地球物理公司综合物化探处,河北涿州072750 [3]中国石油大学(北京),北京102249

出　　处：《河南科学》2019年第10期1665-1669,共5页Henan Science

基　　金：国家科技重大专项资助（2016ZX05053）

摘　　要：哈拉哈塘油田投产井存在着南部比北部产能较差的现象.基于采油过程中流体压力的下降会对储层结构产生影响的考虑,从该区316口油井投产后的初始压力和供液能力之间的关系着手,借助碳酸盐岩缝洞型储层应力敏感性伤害方面的实验数据,对哈拉哈塘油田南北两个区域流体压力差异引起的裂缝空间变化差异进行了对比分析,并着重分析了穹窿构造和异常高压储层供液能力受压力影响的现象.认为在哈拉哈塘油田,相对于北部,南部裂缝型储层存在更强的应力敏感性伤害是导致南部储层供液能力比北部差的原因之一;南部穹窿构造和异常高压储层供液能力快速下降的现象属于应力敏感性伤害的典型现象,为了减轻投产后油压下降对储层连通性的破坏,应当加大对压力预测和储层保护方面的重视程度.The production capacity of production wells in Halahatang oilfield in the south is lower than in the north.Based on the consideration that the decrease of fluid pressure in the process of oil recovery will affect the reservoir structure,starting from the relationship between the initial pressure and liquid supply capacity of 316 oil wells in this area,with the aid of the experimental data of stress sensitivity damage of carbonate fractured vuggy reservoir,we analyzed the difference of fracture space change caused by the difference of fluid pressure between the north and the south of Halahatang oilfield is analyzed,and mainly analyzes the influence of pressure on the dome structure and the fluid supply capacity of abnormal high pressure reservoir. It is considered that in Halahatang oilfield,the more stress sensitive damage of fracture type reservoir in the south is one of the reasons for the worse liquid supply capacity of the reservoir in the south than in the north. Southern dome structure and the rapid decline of fluid supply capacity of abnormal high pressure reservoir are the typical phenomenons of stress sensitive damage. In order to reduce the damage of reservoir connectivity caused by oil pressure drop after production,more attention should be paid to pressure prediction and reservoir protection.

关 键 词：哈拉哈塘油田 碳酸盐岩缝洞型储层 供液能力 应力敏感性伤害 储层保护 

分 类 号：P631[天文地球—地质矿产勘探]