南方页岩气基础地质调查黔普地1井钻井施工技术

Drilling technology of Well Qianpudi-1 for basic geological survey of shale gas in Southern China

页岩气基础地质调查项目黔普地1井是部署在黔西南凹陷青山向斜的一口页岩气地质调查井。介绍了该井的工程与地层概况,重点阐述了该井的钻探施工技术;结合实钻地层及测井数据对钻井施工质量进行了分析评价。通过合理的钻探设备选型、井身结构优化、钻进取心工艺配合、泥页岩抑制性钻井液体系优化和钻进参数的合理搭配,提高了钻进效率,钻井质量满足地质要求,有效地完成了钻井施工任务,以期为同类型页岩气调查井的钻井施工提供技术参考。

The Well Qianpudi-1 is a shale gas geological survey well deployed in the Qingshan syncline in Southwest Guizhou Sag. This paper describes the outline of the project and the basic geology with focus on the drilling and construction technology of the well. In addition, the drilling quality is analyzed in light of drilling formation and logging data. With proper drilling equipment selection, well structure optimization, core drilling technology, drilling fluid system optimization and proper drilling parameters, drilling efficiency has been improved, and drilling quality met the geological requirements, resulting in effective completion of the drilling work. It may provide technical reference for drilling and construction of similar shale gas survey wells.