论文详情

裂缝延伸压力的现场确定方法研究及应用

石油钻采工艺

1996年 18卷第5期

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Title

STUDY AND APPLICATION OF FIELD DETERMINING METHOD OF FRACTURE EXTENSION PRESSURE

作者

蒋廷学

Authors

Jiang Tingxue

单位

石油勘探开发科学研究院廊坊分院

摘要

根据新疆鄯善油田38口井的压裂施工资料,拟合出裂缝延伸压力梯度与压裂目的层压力系数之间的关系。经验证,该方法简单可靠。在新区进行压裂设计时,由于没有先前的压裂施工资料可供借鉴,此时可用该方法对裂缝的延伸压力进行估算,进而掌握地面施工系压和功率消耗情况,并由此选择地面设备、井下工具及部分压裂工艺参数,使压裂设计更具科学性。

Abstract

The relational expression between fracture extension pressure gradient and pressure coefficient of fractured formation is matched based on fracturing operation data of 38 wells in Shanshan oilfield of Xinjiang.Field application results show that it is simple and reliable.In fracturing design for a new oilfield,the fracture extension pressure can be calculated by this relational expression since there is no fracturing operation data for reference.The surface equipment,downho1e tools and operation parameters for fracturing can be selected according to the operation pump pressure and power consumption.It plays an important role for scientific fracturing design.

关键词：

裂缝延伸; 压力梯度; 压力系数; 压裂设备; 井下工具; 压裂; 工艺参数;

Keywords:

fracture extension; pressure gradient; formation pressure coefficient; fracturing equipment; downhole tool; fracturing; operation parameter;

基金项目

DOI

10.3969/j.issn.1000-7393.1996.05.020