安岳气田Y128井钻井液的优选  

Drilling Fluid Selection of Well Y128 in Anyue Gas Field,Sichuan Basin

作　　者：白新军 付银贵 邓毅 邱明 张志刚 葛娜 

机构地区：[1]中国石油集团西部钻探工程有限公司定向井技术服务公司,乌鲁木齐830026 [2]中国石油集团西部钻探工程有限公司,乌鲁木齐830026

出　　处：《新疆石油地质》2013年第6期713-715,共3页Xinjiang Petroleum Geology

基　　金：国家油气重大专项(2008ZX05013)

摘　　要：四川安岳地区三叠系井壁失稳问题一直是气田勘探与开发的技术难点,采用适当密度的钻井液技术是复杂地层钻井成功的关键。通过对该地层不稳定因素及其对钻井液施工技术难点分析研究,结合地层的地质特点,对钻井液的配伍进行改进,优选了适合该地区的聚磺钻井液体系。该钻井液体系具有良好的流变性、造壁性、润滑性和抑制性。现场应用表明,该钻井液体系对该地区顺利钻进、井下安全及油气层保护有非常好的效果。The problem of borehole instability in Triassic of Anyue region has been recognized as a major difficulty for the exploration and de- velopment of the gas field. The key of successful drilling of complex lithological formation was to use drilling fluid with appropriate density. This paper analyzed and researched the unsteady factors of Anyue region Triassic complex formation and the difficulties to the implementation of drilling fluid technology, improved the compatibility of the drilling fluid and optimized polysulfonate drilling fluid system as the appropriate drilling fluid. The drilling fluid system has good characteristics in theology, wall-cake-building ability, oiliness and inhibition. The case study shows that the drilling fluid is of perfect effect on such successful drilling, underground safety and hydrocarbon reservoir protection.

关 键 词：四川盆地 安岳气田 聚磺钻井液 稳定井壁 卡钻 油气层保护 

分 类 号：TE254.3[石油与天然气工程—油气井工程]