| 绥靖油田大路沟二区重复压裂技术研究与试验 |
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| 引用本文： | 任雁鹏,达引朋,赵华,齐亚民,王忍峰,何衡. 绥靖油田大路沟二区重复压裂技术研究与试验[J]. 钻采工艺, 2011, 34(6): 51-54. DOI: 10.3969/J.ISSN.1006-768X.2011.06.16 |
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| 作者姓名： | 任雁鹏 达引朋 赵华 齐亚民 王忍峰 何衡 |
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| 作者单位： | 1. 川庆钻探公司钻采工程技术研究院;低渗透油气田勘探开发国家工程实验室
2. 长庆油田公司第四采油厂 |
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| 摘 要： | 重复压裂技术作为大路沟二区油井提高单井产量的主要进攻性措施， 历年效果不明显。为了提高该区块重复压裂效果， 文章从储层地质特征、 开发现状等方面分析， 认为储层物性差、 非均质性强、 渗流阻力大等方面是影响大路沟二区油井低产低效的主要因素。针对该区域储层微裂缝发育的现状， 提出了多裂缝压裂工艺技术，即借助于砂比、 排量等施工参数的多次反复调整和暂堵剂段塞的运用， 造成施工压力波动， 使主裂缝壁面存在的多个微裂缝能随压力波动出现反复开启 －有限延伸 －闭合的状态， 最终形成压裂主裂缝和多个缝长较短的支裂缝，达到有效增加压裂总缝长、 降低储层流体渗流阻力， 提高单井产量的技术目的。通过室内工艺优化和１ ４口井的现场试验表明， 该技术与常规重复压裂相比， 增产效果显著提高， 为该区块提高重复压裂效果进行了有力探索。
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| 关 键 词： | 老井 重复压裂 提高单井产量 多裂缝 |
RESEARCH AND TEST OF RE-FRACTURING TECHNOLOGY IN THE DALUGOU SECOND REGION OF SUIJING OILFIELD |
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| REN Yanpeng,,DA Yinpeng,ZHAO Hua,QI Yamin,WANG Renfeng, HE Heng. RESEARCH AND TEST OF RE-FRACTURING TECHNOLOGY IN THE DALUGOU SECOND REGION OF SUIJING OILFIELD[J]. Drilling & Production Technology, 2011, 34(6): 51-54. DOI: 10.3969/J.ISSN.1006-768X.2011.06.16 |
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| Authors: | REN Yanpeng DA Yinpeng ZHAO Hua QI Yamin WANG Renfeng HE Heng |
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| Affiliation: | REN Yanpeng1,2,DA Yinpeng1,ZHAO Hua3,QI Yamin1,WANG Renfeng1,2 and HE Heng1,2(1.Changqing Branch,CCDC Drilling & Production Technology Research Institute,2.National Engineering Laboratory for Exploration and Development of Low-permeability Oil & Gas Fields,3.Changqing Oilfield No. 4 Oil Production Factory) |
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| Abstract: | The increase production effectualness of re-fracturing technology is inapparent in Dalugou Second Region of Suijing Oilfield. In order to improve the re-fracturing effect in this region, through the analysis of the geological features and current development status of reservoir, the main off-take potential influential factors were found, that is poor reservoir physical property, strong anisotropism, large filtrational resistance etc. Based on the development situation of micro-fracture of reservoir in this ... |
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| Keywords: | well drilled re-fracturing per-well production multiple cracks |
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