国内井矿盐钻井技术新进展

Advances in drilling technology for borehole salt mining

摘要:

通过钻井技术实现地下盐类矿物的连续水溶开采是井矿盐资源最常用和经济有效的手段。我国井矿盐资源开发历史悠久，堪为人类钻井活动的起源，是近年来发展最快的原盐资源；由于盐类矿物的水溶性、流变性和赋存形式等特点，井矿盐钻井技术与油、气等资源的钻井开采有很大不同之处；在吸收了现代钻井技术(定向井和水平井等)和测井技术后，形成了独具特色的井矿盐防碰绕障、多分支井、带压钻进和精准对接连通等关键应用技术。

关键词:钻井工程;井矿盐;防碰绕障技术;多分支井技术;带压钻进技术;精准对接连通技术

Abstract:

Continuous solution mining of underground salt minerals through drilling technology is the most common and economical method for development of well and rock salt resources. The development of well and rock salt resources with boreholes in China has a long history, and it is the origin of human drilling activities. It is the fastest growing raw salt resource in recent years. Due to the characteristics of water solubility, rheology and modes of occurrence of salt minerals, drilling and mining technology for well and rock salt is very different from that for oil and gas resources. After absorbing modern drilling technology (directional wells and horizontal wells, etc.) and logging technology, the key application technologies such as anti-collision and bypassing, multi-branch wells, Under-pressure drilling, intersection drilling has been developed for well and rock salt mining.

Key words:drilling engineering; well and rock salt; anti-collision and bypassing; multi-branch wells; under-pressure drilling technology; intersection well drilling