高承压堵漏技术在海上储气库南堡1-29气库平1井中的应用

Application of High Pressure-bearing Plugging Technology in Well Ping1 of Nanbao 1-29 Gas Reservoir

胡勇科 胡一鸣 王金忠 晋新伟

HU Yongke HU Yiming WANG Jinzhong JIN Xinwei

冀东油田公司储气库建设项目部，河北唐海　063200

Gas Storage Construction Project Department of Jidong Oilfield Company, Tanghai, Hebei 063200, China

冀东油田海上储气库先导试验井南堡1-29气库平1井三开完钻后，为了避免固井施工中发生漏失，先后采用常规复合法、合金粒子法多次堵漏无效，施工周期达21天，造成大量材料与人力损失。该文从地质特征分析井漏原因、前期堵漏技术的优缺点，决定采用高承压堵漏技术，并在现场实施了高承压堵漏浆配置、泵替、挤注、验漏全过程，仅施工一次就实现承压目标，并在固井过程中未发生漏失，生产套管固井质量合格，超过了储气库固井质量要求。该文详细介绍了高承压堵漏技术在水平井南堡1-29气库平1井的现场应用情况，该井一次堵漏成功率100%，一次性达到固井设计承压要求，具有较好推广应用前景。

After the third spud-in of the pilot test well-Well Ping1 of Nanbao 1-29 Gas Reservoir in Jidong Oilfield, in order to avoid leakage during the cementing operation, the conventional composite method and alloy particle method have been used for many times to plug the leakage, and the construction period has reached 21 days, resulting in a large number of material and manpower losses. Based on the analysis of the causes of lost circulation and the advantages and disadvantages of the early lost circulation technology, it is decided to adopt the high pressure lost circulation technology, and the whole process of high pressure lost circulation including slurry configuration, pump replacement, squeeze injection, and leak detection has been carried out on the site. The pressure bearing goal was achieved only once, and no loss occurred during the cementing process. The production casing cementing quality was qualified, which exceeded the quality requirements of the gas storage well cementation. This paper introduces in detail the field application of the high pressure plugging technology in the horizontal well-Well Ping1 of Nanbao 1-29 Gas Reservoir. The success rate of the well plugging at one time is 100%, which meets the pressure requirements of the cementing design at one time, and has a good prospect of popularization and application.

https://doi.org/10.3969/j.issn.1008-2336.2023.01.078