HEG前置压裂液在长庆油田的应用  

SUCCESS WITH HEG FRACTURING PAD FLUIDS IN CHANGQING OIL FIELD

作　　者：蒋国华 

机构地区：[1]四川石油局井下作业处井下工艺研究所

出　　处：《油田化学》1989年第2期159-162,共4页Oilfield Chemistry

摘　　要：本文简要介绍了四川石油局开发的 HEG 前置液压裂酸化技术在使用于长庆油田时,HEG前置压裂液的室内实验、低温适应性及其在长庆油田冬季施工中的现场应用情况。HEG fracturing pad fluids developed previously for Sichuan gas fields had been successfully used for frac-acidizing operations in winter in Changqing Oil Field.To investigate the applicability of the pad fluids in winter climate,the properties of gelling and gelled HEG solutions after natural and accelerated heating of freezed original gelling and cross-linking solutions with and without an antifreezer are studied and shown to be practically unchanged, particularly in the presence of the antifreezer.A special flacturing pad fluid is formulated. Its compatibility with acidizing fluids is satisfactory and only a little acid-insoluble gel is formed after contact with acidic solutions.The operations in 3 producing wells are described.

关 键 词：HEG 前置压裂液 油田 

分 类 号：TE357.212[石油与天然气工程—油气田开发工程]