新疆页岩气调查井准页2井钻井施工技术及问题探讨

Drilling Technology in Zhunye 2 Shale Gas Investigation Well and the Discussion

摘要:

准页2井是新疆国土资源系统首批施工的页岩气调查井之一。该井设计井深1700 m，实际完钻井深1617.18 m，取心井段岩心采取率达到100%，工程质量完全满足地质要求。该井出气情况良好，钻井施工技术较为成功。从钻井设备的选择依据，井身结构，取心钻具、钻头的选择使用情况，钻进技术参数，钻井液的使用情况等方面详细介绍了准页2井的钻井施工技术。同时，对施工中存在的技术和安全施工的问题进行了必要的分析探讨。

Abstract:

Zhunye 2 is one of the first constructed shale gas investigation wells of Xinjiang land and resources system, which was designed for 1700m in depth and completed at the depth of 1617.18m, the coring recovery is 100% at sampling section. The engineering quality fully meets the geological requirements with good gas production. The paper introduces the construction technologies used in Zhunye 2 about drilling equipments selection basis, casing program, coring tools, drill bit application, drilling technical parameters and drilling fluid selection. Some necessary discussions are carried out on the issues of technology and safe construction.