Research and application of drilling fluid suitable for new well bore structure in the Shunbei oil field
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摘要: 针对顺北油田二叠系多漏层易漏失、志留系井壁失稳、桑塔木组火成岩坍塌应力高、深井小井眼定向携岩困难等技术难题,推行侵入体“专打专封”新型井身结构。通过室内实验,优选聚胺、高软化点沥青、磺酸盐共聚物等处理剂,引入甲胺基强抑制强封堵防塌钻井液和成膜随钻堵漏钻井液技术,并应用堵漏浆钻进解决二叠系纵向裂缝难题。通过5口井现场实验,成功解决该区块多项技术难题,形成了一套适用于顺北油田配套钻井液工艺技术,满足新型井身结构钻进需要。Abstract: In the Shunbei oil field, leakage often took place in Permian, well bores are instable in Silurian, collapse stress is high in the Sangtamu Formation, and it is difficult to carry debris directionally in deep and slim holes. A new well bore structure with special intrusion for sealing is proposed. Through laboratory experiments, we choose polyethylene amine, high softening point asphalt, sulphonate copolymer treating agent such as methy-lamine, and introduce methylamino drilling fluid and filming technique, to deal with longitudinal cracks in Permian. Field applications were made in 5 wells, and proved successful. A set of suitable drilling fluid technology has been developed to meet the needs of new well structure.
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[1] 向朝纲.弱凝胶水基钻井液及作用机理研究[D].成都:西南石油大学,2012:5-8. [2] 杨立国.成膜钻井液理论及应用技术研究[D].大庆:东北石油大学,2011:6-12. [3] 徐同台,卢淑芹.影响泥页岩在清水中膨胀率因素的探讨[J].钻井液与完井液,2004,21(1):5-7. [4] 林永学,王忠厚,张贞勇,等.塔东北地区泥页岩水敏性研究[J].西部探矿工程,1997(5):16-18. [5] 邱正松,钟汉毅,黄维安.新型聚胺页岩抑制剂特性及作用机理[J].石油学报,2011,32(4):678-682. [6] 徐家放,邱正松,刘庆来,等.塔河油田井壁稳定机理与防塌钻井液技术研究[J].石油钻采工艺,2005,27(4):33-36. [7] 王业众,康毅力,游利军,等.裂缝性储层漏失机理及控制技术进展[J].钻井液与完井液,2007,24(4):74-77. -
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