分支井钻完井技术在高石梯-磨溪地区的适应性分析  

ANALYSIS ON APPLICABILITY OF MULTILATERAL DRILLING AND COMPLETION IN GAO-MO AREA

作　　者：周柏年 孟鐾桥 沈欣宇 

机构地区：[1]中国石油西南油气田公司工程技术研究院

出　　处：《钻采工艺》2018年第3期33-36,共4页Drilling & Production Technology

基　　金：中国石油天然气股份有限公司重大科技专项"西南油气田天然气上产300亿立方米关键技术研究与应用-四川盆地高温高压含硫深井超深井钻井;完井及试油技术研究与应用"(编号:2016E-0608);中国石油西南油气田分公司科技现场应用试验项目"高石梯震旦系气藏分支井钻完井及储层改造工艺技术现场试验"(编号:20180302KS-02)

摘　　要：随着高石梯-磨溪地区钻探目的层不断加深,地质和钻完井工程难题使大斜度井、水平井开发成本增加,为了进一步降低该区块深井钻完井成本,提高开发效率,开展分支井钻完井技术的适应性研究。综合分析了该区块地质储层特征、钻完井工程难点,结合国内外其它油田以及该地区已钻分支井应用效果,论证了分支井钻完井技术在该地区实施的可行性。进一步研究表明该区块分支井开发初期应采用双分支水平井,并根据这一特点,形成了两套开发该气藏的双分支水平井钻完井方案,为高石梯-磨溪地区深井开发提供了良好的技术支持。With the exploration targets becoming deeper in Gao-Mo area,engineering problems during drilling and completion as well as geological factors have increased the cost of highly-deviated wells and horizontal wells. In order to reduce the cost of drilling and completion in this area and improve the development efficiency,the research of multilateral well drilling and completion technology has been carried out. The geological features of the gas reservoirs and the drilling and completion challenges were evaluated comprehensively,and applicability of multilateral well drilling in this area was analyzed,based on analysis of the multilateral wells in other domestic and overseas fields. Research has shown that bi-lateral wells should be drilled in the early stage of development. Two sets of drilling plans were developeded for bi-lateral wells in gas reservoirs in this area,which provides Gao-Mo with a better development approach.

关 键 词：双分支水平井 适应性分析 高石梯-磨溪地区 钻完井技术 

分 类 号：TE243[石油与天然气工程—油气井工程] TE257