闭合酸压中导流能力的确定

Conductivity of closed acid fracturing

闭合酸压作为酸化和酸压结合的工艺,是指在大于地层破裂压力的情况下高排量注入酸液,然后在低于地层破裂压力的情况下注入酸液,溶蚀增加裂缝的宽度。本文主要对闭合酸压的原理、酸蚀裂缝的有效距离、导流能力以及闭合酸压的施工工艺进行论述。

Closed acid fracturing refers to the process in which a large amount of acid is injected into the well when the operating pressure is larger than that of formation fracture,then the acid is injected to erode and extend cracks after the operating pressure is lower than that of formation fracture.This paper describes the acid etching,conductivity as well as principle and construction of closed acid fracturing.