玻璃钢保形取心技术在乍得古潜山储层B-2井中的应用

Application of Fiber Glass Conformal Coring Technology in Well B-2 of Chad Ancient Buried Hill Reservoir

玻璃钢保形取心技术是一种应用可切割玻璃钢内筒的常规自锁式取心工具,主要应用于中硬至坚硬地层。古潜山储层作为坚硬破碎地层的代表性储层,地层坚硬而破碎,取心难度较大,岩心收获率较低。乍得古潜山储层埋藏较浅,与国内古潜山储层有明显的区别,风化严重,取心难度极大。本文主要解决了玻璃钢保形取心技术在乍得古潜山储层B-2井中的应用,并且对在取心过程中遇到的问题进行了分析和研究,同时采取了有效的解决方案。

Fiber glass conformal coring technology uses a conventional self-locking coring tool with cutable fiber glass inner cylinder, and it is mainly suitable for medium to hard formations. As an representative reservoir of hard and fractured strata, the buried hill reservoir is hard and broken, and it is difficult to extract the core, and the core harvest rate is low. The Chad ancient buried hill reservoir is shallowly buried, and it is obviously different from the domestic ancient buried hill reservoir. The weathering is serious and the coring is very difficult. In this paper, application problem of fiber glass conformal coring technology in B-2 well of Chad ancient buried hill reservoir was solved, and the problems encountered in the coring process were analyzed and studied, and an effective solution was put forward.