威远区块页岩气“井工厂”钻井技术

发布时间：2018-05-25 03:38

本文选题：页岩气 + 山地　；参考：《石油钻探技术》2017年05期

【摘要】：威远区块地表为低山丘陵地貌,交通运输不便,增加了钻井成本,且钻井平台周围有居民散居,导致井场建设和钻井过程中在健康、安全和环保方面面临巨大挑战。为此,针对威远区块的地貌特征及该区块的页岩气开发特点,开展了山地"井工厂"井网部署和井眼轨道设计、井眼轨迹控制、丛式井组防碰设计、TI-350T全液压深井智能钻机应用和"井工厂"钻井作业流程设计等方面的研究,形成了高效的页岩气"井工厂"钻井技术。该钻井技术在威204H11平台进行了应用,平均机械钻速达到7.13m/h,钻机井间运移仅需2.0h,钻井液利用率达到80%以上,大大减少了非钻井作业时间、降低了钻井成本。应用表明,该"井工厂"钻井技术可为国内其他类似页岩气区块的高效开发提供借鉴。
[Abstract]:The surface of Weiyuan block is low mountain and hilly landform, the transportation is inconvenient, the drilling cost is increased, and the residents live scattered around the drilling platform, which leads to the health, safety and environmental protection challenges in the well site construction and drilling process. Therefore, according to the geomorphological characteristics of Weiyuan block and the shale gas development characteristics of the block, the well pattern layout, well track design and wellbore trajectory control are carried out in the mountainous "well factory". The application of TI-350T fully hydraulic deep well intelligent drilling rig and the design of drilling operation flow of "well factory" have formed an efficient drilling technology of shale gas "well factory". The drilling technology has been applied in 204H11 platform. The average drilling speed is 7.13 m / h, the inter-well migration is only 2.0 h, and the drilling fluid utilization ratio is more than 80%, which greatly reduces the non-drilling operation time and the drilling cost. The application shows that the well plant drilling technology can be used as reference for the efficient development of other similar shale gas blocks in China.
【作者单位】：油气藏地质及开发工程国家重点实验室(西南石油大学);中国石油集团川庆钻探工程有限公司;
【基金】：国家重点基础研究发展计划(“973”计划)项目“页岩气水平井井眼轨迹优化设计与地质导向理论研究”(编号:2013CB228003) 四川省科技支撑计划项目“页岩气钻完井工程技术研究”(编号:2015SZ0003)部分研究内容
【分类号】：TE242

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