水相圈闭损害机理、评价及防治措施研究进展  

Research Advances of Aqueous Phase Trapping-Damage Mechanism,Evaluation and Prevention Method

作　　者：赵景原[1] 孙玉学[1] 冯福平[1] 于洋[2] 蒋方军 Zhao Jingyuan;Sun Yuxue;Feng Fuping;Yu Yang;Jiang Fangjun(Northeast Petroleum University,Petroleum Department,Daqing,Heilongjiang 163318,China;Jilin Oilfield Drilling Technology Research Institute,Songyuan,Jilin 138000,China)

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]吉林油田钻井工艺研究院,吉林松原138000

出　　处：《非常规油气》2018年第5期104-110,共7页Unconventional Oil & Gas

基　　金：吉林油田公司项目"德惠;伊通复杂油气藏储层专打技术研究"(JS2017-W-26-JZ-8-22)资助

摘　　要：针对水基工作液与低束缚水饱和度水湿性储层接触时发生的水相圈闭问题,通过调研和分析国内外致密气藏水相圈闭损害的研究成果,从损害机理、潜在损害程度预测公式、损害评价数值模拟方法及防制措施等几个方面进行系统的综述。分析认为水相圈闭实质是毛管力作用下的对流自吸问题。该损害多发生在致密气藏的开发过程中,具有较强的不可逆性,对于水相圈闭损害,预防损害的发生远比损害后处理重要。对于水相圈闭的损害机理的认识已经较为全面,但其评价方法缺少统一的标准。对于水相圈闭损害程度的预测从岩心尺度开始向单井尺度发展;针对该类型的损害的数值模拟技术刚刚起步,正逐渐成为研究的热点。对关于水相圈闭的研究进展进行了相关评述和应用展望,对水相圈闭研究具有一定的参考意义。Aimed at aqueous phase trapping which is a form of reservoir damage that happens when water-based working fluid contacts with hygroscopic reservoir of low bound water saturation, via investigation and analysis on domestic and foreign research achievements about aqueous phase trapping damage of tight gas reservoir, a systematic summary is made from damage mechanism, forecast formula of potential damage degree, numerical simulation of damage evaluation, prevention measures, etc. Aqueous phase trapping is actually a countercurrent imbibition issue under capillary force. This damage with strong irreversibility often occurs during the development of tight gas reservoir, therefore, prevention of damage is more significant than treatment after damage in term of aqueous phase trapping. The knowledge on damage mechanism of aqueous phase trapping has been comprehensive, while there is a lack of unified standard for its evaluation method. The forecast on the damage degree of aqueous phase trapping develops from core dimension towards single well dimension; the numerical simulation technique for such type of damage has just started, and is becoming the research hotspot. Finally, the suggestions and prospect was made. This review provides some references on the understanding and application progress of aqueous phase trapping in recent years.

关 键 词：储层损害 水相圈闭 损害机理 致密气藏 研究进展 

分 类 号：TE258[石油与天然气工程—油气井工程]