火成岩裂缝性储层应力敏感性实验研究  

Stress sensitivity test on fractured reservoir of igneous rock

作　　者：王富华[1] 邱正松[1] 丁锐[1] 任占春[2] 

机构地区：[1]石油大学(华东)石油工程系 [2]胜利石油管理局采油工艺研究院

出　　处：《钻井液与完井液》2000年第6期1-4,共4页Drilling Fluid & Completion Fluid

摘　　要：建立了一套裂缝性油藏应力敏感性和裂缝滞后效应评价实验程序,提出了评价应力敏感性和裂缝滞后效应的量化指标。利用该评价程序对火成岩裂缝性岩心进行了应力敏感性和裂缝滞后效应评价。实验结果表明,不同类型裂缝性岩心的应力敏感性和裂缝滞后效应变化规律不同。对于火成岩裂缝性油藏,应制定合理的施工方案,尽量采用近平衡压力钻井,在开发过程中应控制采油速度,避免裂缝滞后效应和应力敏感性损害。A test program is established to evaluate the stress sensitivity and fracture lag-effect of fractured reservoir, and the qualified indexes are proposed thereby. Core samples from fractured reservoir of igneous rock is used to conduct the tests, and tests show that for different fractured cores, their stress sensitivities and fracture lag-effects show different changing tendency. Thus for fractured reservoir of igneous rock, reasonable and suitable operation plans for drilling and production should be made. Near-balanced drilling should be achieved, and in production, control of production speed is necessary. so as to avoid the formation damage caused by fracture lag-effect and stress sensitivity damage.

关 键 词：裂缝性储集层 应力 火成岩 油藏 敏感性 

分 类 号：TE122.23[石油与天然气工程—油气勘探] P618.130.2[天文地球—矿床学]