石油与天然气化工Issue(4)：83-86,4.DOI:10.3969/j.issn.1007-3426.2015.04.017
安塞油田致密砂岩井体积压裂现场先导试验
Field pilot test of volume fracturing in tight sandstone well in Ansai Oilfield
摘要
Abstract
Ansai Oilfield is a typical tight sandstone reservoir with “low pressure ,low permeabili‐ty ,low production” ,which has poor reservoir property and strong heterogeneity .The new well build the production only by fracturing .With the development of oilfield ,the well affected by the closure pressure need second fracture or third fracture to restore production .However ,by the limit of well selection conditions ,conventional measures of increasing production only make low oil increasing ,and the validity period is short since fracturing is hard to make new fracture .Taking Ansai Oilfield Xing 18‐A as an example ,this article specified the construction scheme and take mixed water volume frac‐turing pilot test with “large fluid measure ,large displacement ,large sand measure ,low sand ratio”while taking the microseismic crack monitoring .Field application results showed that compared with conventional fracturing ,the crack volume which was formed by this technology enlarged 126 .7% , and the average single well daily oil‐increasing improved 1 .7 times .It showed obvious advantage in reservoir refracturing .关键词
体积压裂/致密砂岩油藏/现场试验/微地震监测/安塞油田Key words
volume fracturing/tight sandstone reservoir/field test/microseismic crack monito-ring/A nsai Oilfield分类
能源科技引用本文复制引用
姬伟,申坤,张育超,牛萌,折立军,王海强,陈刚..安塞油田致密砂岩井体积压裂现场先导试验[J].石油与天然气化工,2015,(4):83-86,4.基金项目
长庆油田分公司科研项目“低渗透油藏老井混合水压裂技术试验与推广”（1813a003615002）。 （）
