深度酸化-临堵-返排残酸液综合工艺在低渗油藏增注调剖中的应用

AN APPLICATION OF THE INTEGRATED PROJECT IN WELL STIMULATION AND PROFILE CONTROL IN TIGHT RESERVOIR

韩振华 王纲 曾久长

Han Zhenhua Wang Gang Zeng Jiuchang

华北石油管理局

如何提高低渗透砂岩油藏和较高渗透砂岩油藏增注调剖效果,是华北油田开发中的难题。通过综合运用深度酸化-临堵-返排残酸液三种工艺措施,解决了以上难题,取得了很大进展。本文介绍工艺原理、单井施工实例和效果分析,经与其它工艺措施后的单井效果进行比较,充分显示了综合工艺的优越性。

The problems faced to development engineering are how to improve the effect of well stimulation and profile control in low permeability reservoir and high permeability sandstone payzone in Huabei oilfield.By using the technology of deepen acid treatment,temporary plugging and hack wash of residual acid in integrated project,the problems mentioned above have been solved successfully and the good effect have been obtained.This article introduced the technology principle,case of history and effect analysis,comparing of results to other wells treated with other technology,the advantage have been shown.

10.3969/j.issn.1000-7393.1994.05.021