不动管柱分层压裂工艺技术在大牛地气田的研究与应用  

Study and Application of Separate Layer Fracturing without Pulling String Technology in Daniudi Gasfield

作　　者：秦玉英 

机构地区：[1]华北分公司勘探开发研究院,河南郑州450006

出　　处：《油气井测试》2008年第1期53-55,共3页Well Testing

基　　金："十五"国家重大科技攻关项目<中国大中型气田勘探开发关键技术研究>课题<复杂低渗气藏增产改造关键技术研究>专题<复式气藏分层压裂改造技术研究>中部分内容

摘　　要：针对大牛地气田储层低压、低孔、致密、纵向上目的层多,层间跨距变化大,且单层产能低的特征,开展不动管柱分层压裂改造技术研究,以实现该气田多层叠置气层的均衡改造。通过该工艺的研究和实施,优化了适应于大牛地气田的低伤害氮气增能羟丙基胍胶压裂液体系,形成了一套不动管柱分层压裂工艺技术,并在大牛地气田推广应用,成功率96.55%,较相同储层条件的单井产能明显提高,同时减少作业时间和程序,降低作业成本。Separate layer fracturing without pulling string technology is studied to make each layer balanced fractured for multi-layer in one gas well due to low pressure, low porosity, tight and multi-layer in vertical and low productivity for single layer. HPG frac fluid system with hydraulic nitrogen energizing is optimized and a series of separate layer fracturing without pulling string technology is formed and widely used in Daniudi gas field. The success rate of that is 96.55% and, the productivity per well with same reservoir characteristic is higher than that of using conventional fracturing technology which shortens operating time and decreases operating procedure and cost.

关 键 词：大牛地气田 多层叠置气层 低伤害压裂液 不动管柱 分层压裂 均衡改造 

分 类 号：TE357[石油与天然气工程—油气田开发工程] P618.130.2[天文地球—矿床学]