商河基山砂体压裂工艺优化及应用  

Optimization and application of fracturing process in Jishan sand body of Shanghe Oilfield

作　　者：盖玉磊[1] 

机构地区：[1]中石化胜利油田分公司,山东东营257001

出　　处：《特种油气藏》2008年第4期100-103,共4页Special Oil & Gas Reservoirs

摘　　要：商河基山砂体在前期的试油过程中,存在着压裂增产效果较差的问题,制约了勘探开发的步伐。为此,对前期压裂施工资料进行了统计分析及压裂支撑剂室内实验测试。研究认为,该区存在的问题:一是压裂采取的粉陶降滤措施对储层产生了较为严重的伤害;二是压裂体系选择不合适,导致压裂施工泵压较高,限制了加砂规模。相应采取了全程加液氮降滤技术,并成功研制了先进的延迟交联剂以降低井筒摩阻的技术措施来降低施工泵压。改进后的压裂工艺在田303、田斜302井实施后,大幅度提高了原油产量,证明该工艺是可行的,打开了该区的勘探开发局面。Jishan sand body of Shanghe Oilfield responded poorly to fracturing stimulation during earlier testing process.This paper studies earlier fracturing operation data and laboratory test data of fracturing proppant.The problems are fluid loss control with ceramic powder during fracturing has brought serious damage to the reser- voirs,and improper fracturing system has resulted in high pump pressure during fracturing operation thus limited gravel input scale.Fluid loss control by adding liquid nitrogen for the full course is adopted,and a delayed crosslinker has been developed to reduce borehole friction and pump pressure.The improved fracturing process had been applied in Well Tian 303 and Tianxie 302,and oil production had been substantially improved.

关 键 词：基山砂体 压裂 降滤 延迟交联 应用 效果 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]