地层温度对注水井井壁开裂的影响

英文篇名：INFLUENCES OF FORMATION TEMPERATURE ON BOREHOLE WALL INITIAL FRACTURE OF INJECTION WELL
中文刊名：岩石力学与工程学报
英文刊名：Chinese Journal of Rock Mechanics and Engineering
作者：张彦山 ; 殷有泉 ; 蒋阗 ; 单文文
英文作者：ZHANG Yan-shan1 ; YIN You-quan2 ; JIANG Tian3 ; SHAN Wen-wen3(1.Institute of Crustal Dynamics ; China Earthquake Administration ; Beijing 100085 ; China ; 2.Department of Mechanics and Engineering Science ; Peking University ; Beijing 100871 ; China ; 3.Langfang Branch ; Research Institute of Petroleum Exploration and Development ; Langfang 065007 ; China)
中文关键词：石油工程 ; 注水井 ; 井壁开裂准则 ; 热诱导应力
英文关键词：petroleum engineering ; injection well ; initial fracture condition ; thermal induction stress
出版日期：2005-12-30
机构：中国地震局地壳应力研究所,北京大学力学与工程学系,石油勘探开发科学研究院廊坊分院,石油勘探开发科学研究院廊坊分院北京100085,北京100871,河北廊坊065007,河北廊坊065007
年：2005
期：24
出版单位：岩石力学与工程学报

摘要

研究了注水井将大量温度较低的地面水注入高温油藏使地层的地温度场发生变化。据此,分析了这些变化导致的热应力引起的附近应力对注水井井壁开裂条件的影响,并建立了常注水量条件下注水井的井壁开裂准则。研究结果表明:热诱导应力必须加以考虑;在给定的一组数据下,由于热效应开裂应力可减少16%。
When a cool fluid such as water is injected into a hot reservoir,a growing region of cooled rock is established around the injection well.The results in change of in-situ temperature field and the influences of induced stress due to thermal stress field on the initial fracture condition are analyzed.The achieved results show that the thermal induction stress should be considered.The example illustrates that the initial stress due to the effect of thermal induced stress can be decreased about 16%.

引文

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