小型压裂与主压裂对比分析及对裂缝垂向延伸规律研究  

COMPARISON OF MINI-FRACTURING AND MAIN-FRACTURING AND THE FRACTURE VERTICALLY EXTENDING LAW

作　　者：王晓泉[1] 王振铎[1] 雷群[2] 柴瑞林[2] 闵琪[2] 

机构地区：[1]中国石油勘探开发研究院廊坊分院 [2]中国石油长庆油田分公司

出　　处：《天然气工业》2004年第4期36-37,共2页Natural Gas Industry

摘　　要：小型压裂是认识储层特征、为主压裂设计和修改提供依据的一种重要手段。但是对于气藏特别是低渗气藏 ,考虑到储层伤害及排液影响 ,进行小型压裂测试的机会不多。文章介绍了小型压裂和主压裂技术在我国某低渗气藏的应用情况 ,并通过小型压裂的井温曲线分析、小型压裂净压力拟合分析、主压裂净压力拟合分析 ,提出必须要将小型压裂与主压裂资料综合分析 ,才能做到既认识储层 ,又达到了优化压裂设计的目的。同时还研究了两种压裂方式对裂缝垂向延伸的影响。Mini-fracturing is an important tool to understand reservoir characteristics and provide data for the design and improvement of main-fracturing. But for gas reservoirs, especially for low-permeability gas reservoirs, the chance to conduct mini-fracturing is a little because worrying about the reservoir damage and the problem of fracturing fluid flow-back. The article introduces the application of mini-fracturing and main-fracturing in a low-permeability gas reservoir of China. According to the temperature profile logging of mini-fracturing and the net-pressure fitting analysis of mini-fracturing and main-fracturing. it is pointed out that integrative analysis of mini-fracturing and main-fracturing data is necessary to understand reservoirs and optimize fracturing designs. Also. the influence of mini-fracturing and main-fracturing on fracture vertically extending is investigated.

关 键 词：小型压裂 低渗气藏 主压裂 净压力 水力裂缝 垂向延伸规律 压裂方式 井温曲线分析 

分 类 号：TE357[石油与天然气工程—油气田开发工程]