高庙区沙溪庙组凝析气藏压裂技术应用研究  

Research and Application of Gas Condensate Reservoir Fracturing Technology in Shaximiao Group,Gaomiao Area

作　　者：刘斌[1] 尹琅[1] 

机构地区：[1]中石化西南油气分公司工程技术研究院,四川德阳618000

出　　处：《重庆科技学院学报（自然科学版）》2015年第6期61-63,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"四川盆地低渗气藏储层改造工艺技术研究"(2011ZX05002-004-003)

摘　　要：高庙区沙溪庙组气藏为低孔低渗致密储层,由于强应力敏、地层出砂及凝析油对储层造成伤害,导致压后排液过程中井口压力下降快,返排率低,且压后产量快速下降。针对此情况,通过室内实验研究,优化压裂液中破乳剂加量、防膨剂加量组合,优选支撑剂材料;同时利用测得的高压流体露点压力,确定排液压力范围。通过研究确定适用于沙溪庙凝析油气藏的压裂技术,现场实施效果良好。The gas reservoirs belong to low porosity and permeability of tight reservoirs in Shaximiao group,Gaomiao area. Strong stress- sensitive,sand production and gas condensate would damage reservoirs,so that fluid pressure at the wellhead drops quickly,and flowback rate and post- press production fell fast,too. So this paper carried some laboratory experiments to optimize the fracturing fluid demulsifier and the anti- swelling agent combination,and also fracturing ceramic material. Based on the measured high pressure fluid dew point pressure,we could determine the discharge pressure range. Eventually a suitable condensate reservoir fracturing technology was formed in Shaximiao group with good field applications.

关 键 词：凝析气藏 压裂液优化 控压排液 

分 类 号：TE375[石油与天然气工程—油气田开发工程]