一种高强度成塞暂堵剂

发布时间：2018-06-25 06:07

本文选题：高强度暂堵剂 + 配方　；参考：《钻井液与完井液》2017年05期

【摘要】：注水泥塞施工设备多、成本高,深井、高温井注水泥塞安全风险较为突出,因此研究一种强度高、配制简单、泵送方便、风险较小的高强度成塞暂堵剂具有较大的价值。开展了高效成塞暂堵剂核心材料胶凝剂、悬浮剂的优选和活性剂研制,通过对文献查阅研究,进行了大量室内实验,研究形成了高强度成塞暂堵剂GQ-1体系。该体系密度可调节范围大(1.50~1.90 g/cm3)、浆体稳定性好,流动度、流性指数、稠度均在合理范围内,与钻井液相容性好,成塞强度高。该体系可用钻井液循环系统、加重装置配制,钻井液泵注替。研究成果在洋渡-H2等2井次进行了试验,施工顺利,试验井回接固井后分别试压63.3、64.3 MPa合格。试验的成功为该体系推广应用提供了技术支撑。
[Abstract]:The construction equipment of cement plug is more, the cost is high, the safety risk of cement plug is more prominent in deep well and high temperature well, so it is of great value to study a kind of temporary plugging agent with high strength, simple compounding, convenient pumping and less risk. The high effective stopper temporary plugging agent gelling agent, suspension agent and active agent were selected and developed. A large number of laboratory experiments were carried out on the basis of literature review, and a high strength plugging temporary plugging agent GQ-1 system was developed. The system has a wide adjustable range of density (1.50 ~ 1.90 g/cm3), good slurry stability, good fluidity, fluidity index and consistency within a reasonable range, good compatibility with drilling fluid and high plugging strength. The system can be used for drilling fluid circulation system, weighting device preparation, drilling fluid pump injection. The research results were tested in Yangdu-H2 and other wells, and the operation was smooth, and the test pressure was 63.3% 64.3 MPA after the well was cemented back. The success of the test provides technical support for the popularization and application of the system.
【作者单位】：中国石油集团川庆钻探工程有限公司川东钻探公司;
【基金】：川庆钻探工程公司重点科研项目“回接固井裸眼暂堵工艺技术研究”(13B-13-1-3)
【分类号】：TE254.4

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