论文详情

长岭凹陷腰英台低渗储层压裂工艺

石油钻采工艺

2005年 27卷第4期

阅读：85

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Title

FRACTURING TECHNOLOGY RESEARCH ON LOW PERMEABILITY RESERVOIR OF CHANGLING FALLING YAOYINGTAI BLOCK

作者

姚洪生张亚文张文正

Authors

Yao Hongsheng Zhang Yawen Zhang Wenzheng

单位

中石化华东分公司东北项目经理部, 江苏泰州 225300

Organization

Northeast Project Management Department, East China Branch of SINOPEC, Taizhou 225300, Jiangsu

摘要

松南盆地长岭凹陷腰英台区块低渗透储层微裂缝发育,在地层原始状态下微裂缝呈闭合状,压裂过程中随着压力升高,微裂缝开启形成诱导缝,大大提高储层渗流能力,导致压力下降,压裂液大量滤失,裂缝宽度变小引起脱砂,最终导致压裂失败。通过室内研究和现场试验,采用"悬塞"控缝、高砂比小陶粒控缝等配套技术,有效地控制了微裂缝在压裂过程中的影响,提高了压裂成功率。

Abstract

microfracture developed but closed at original state in changling falling yaoyingtai block, during fracturing, with the pressure increasing, the fracture has been opened and fluid flow capacity has been improved, but as pressure decreasing, fracture fluid leak off and fracture nearly closed. After office study and field experiment, using suspend plug and high sand concentration with little ceramsite to control fracture, advanced fracturing success ratio.

关键词：

压裂; 裂缝; 悬塞; 高砂比小陶粒; 限流; 低渗透;

Keywords:

fracturing; fracture suspend plug; high sand concentration; ceramsite restriction; low perm eability;

基金项目

DOI

10.3969/j.issn.1000-7393.2005.04.023