文章摘要
冷家油田防漏堵漏钻井液技术
Leakproof and plugging drilling fluid technology in Lengjia Oilfield
投稿时间:2020-02-12  修订日期:2020-02-12
DOI:
中文关键词: 冷家油田  亏空地层  强化封堵  化学固结  堵漏
英文关键词: Lengjia Oilfield  depleted formation  enhanced plugging  chemical consolidation  plugging
基金项目:国家科技重大专项“深井超深井优质钻井液与固井完井技术研究”(编号:2016ZX05020-004),高远文;长城钻探工程有限公司科技项目“ 裂缝及地层亏空型漏失防漏堵漏技术研究与应用”(GWDC 201802-01(04)),王晓军。
作者单位E-mail
吴爽 辽河油田冷家油田开发公司 wushuang-ld@petrochina.com.cn 
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中文摘要:
      针对冷家油田目的层渗漏普遍、井漏程度严重的问题,室内形成了强化封堵钻井液体系和化学固结堵漏配方。室内性能评价表明:强化封堵钻井液体系具有良好的封堵性能,化学固结堵漏配方与钻井液配伍性好、抗压强度高。强化封堵钻井液体系现场应用10口井,井漏预防率达到了80%;化学固结堵漏技术现场应用2口井,堵漏成功率达到了100%。结果表明:强化封堵钻井液体系和化学固结堵漏技术能够有效预防及治理冷家油田井漏事故,具有广阔的推广应用前景。
英文摘要:
      Aiming at the problems of widespread leakage and serious leakage in the target zone of Lengjia Oilfield, a enhanced blocking drilling fluid system and chemical consolidation plugging formula were formed in the room. The indoor performance evaluation showed that the enhanced plugging drilling fluid system had good plugging performance, the chemical consolidation blocking formula was compatible with drilling fluid, and had high compressive strength. The drilling fluid system was applied to ten wells in the field, and the leak prevention rate reached 80%, the chemical consolidation plugging technology was applied to two wells in the field, and the plugging success rate reached 100%. The result shows that the enhanced blocking drilling fluid system and chemical consolidation plugging technology can effectively prevent and treat well leakage accidents in Lengjia Oilfield, and have broad application prospects.
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