四川省宣汉县钾盐普查ZK001参数井钻井施工技术

Drilling Construction Technology of ZK001 Parameter Well for Potassium Salt Survey in Xuanhan County of Sichuan Province

摘要:

以四川省宣汉县黄金口钾盐普查ZK001井钻探工程为背景，从井身结构、钻具组合、钻井液工艺、取心技术、井斜控制、深部抽水试验等方面，总结研究了钾盐参数井的钻井施工技术。针对施工过程中超长裸眼段钻进、井漏、长段膏盐层钻进等技术难题，通过优化钻具组合，调整钻井液性能，随钻堵漏等措施，工程得以顺利完成。

关键词:钾盐参数井;钻井;长裸眼;钻井液;固井;深部抽水试验;长段膏盐地层

Abstract:

With the background of well ZK001 drilling project for potassium salt survey Xuanhan County of Sichuan Province, the drilling construction technology of potassium salt parameter well is summarized in well structure, drilling tools combination, drilling fluid technology, coring technology, well deviation control and deep pumping tests. In view of the technical difficulties such as super-long open hole drilling, hole leakage and long-section gypsum salt layer drilling in the construction process, by the countermeasures of optimizing drilling tools combination, adjusting the performance of drilling fluid

Key words:potassium salt parameter well; drilling; long open hole; drilling fluid; well cementing; deep pumping test; long section of gypsum salt formation