石油钻采工艺2011,Vol.33Issue(6):74-78,5.
压前评估在H136井第三次压裂施工中的应用
Pre-assessment for the third time fracturing in Well H136
张军 1孙虎 1陆红军 2段凯 1纪冬冬 1陈其松1
作者信息
- 1. 川庆钻探公司长庆井下技术作业公司,陕西西安710021
- 2. 长庆油田公司超低渗透油藏研究中心,陕西西安710021
- 折叠
摘要
Abstract
Pre-assessment can conduct the quantitative evaluation for influencing factors of fracturing effect and their relations, which could make the fracturing operation more scientific and quantification, and improve the operation efficiency for the target layer. At present, the pre-evaluation technique is aimed at whether the target wells or target layers are reasonable; for those re-operation wells or failed-treated wells, few or no analysis is engaged by such technology. The failure reasons of two fracturing operations for Layer Chang8 in exploration Well H136 in Changqing Area were analyzed, and some pre-evaluations including reservoir production capability, fracturing failure, fracturing liquids damage and re-evaluation of the shale content were performed, from which advantages and disadvantages for the third operation were obtained. Based on those a pad-acid variable rate stimulation method was carried out which have achieved the expected result. The successful practice of the third fracturing will provide technical references of effective development for further evaluated wells and key exploration wells in Ordos basin.关键词
压前评估/重复压裂/变排量前置酸化/长庆油田Key words
pre-assessment/refracturing/variable rate preposition aciding/Changqing oilfield分类
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张军,孙虎,陆红军,段凯,纪冬冬,陈其松..压前评估在H136井第三次压裂施工中的应用[J].石油钻采工艺,2011,33(6):74-78,5.