Study on Water Shutoff  by Used Composite Resin in Low Permeability Bottom Water Reservoir

doi:10.3969/J. ISSN.1006-768X.2020.01.37

Drilling & Production Technology ›› 2020, Vol. 43 ›› Issue (1): 129-131.DOI: 10.3969/J. ISSN.1006-768X.2020.01.37

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Study on Water Shutoff by Used Composite Resin in Low Permeability Bottom Water Reservoir

WANG Qianlong, CHEN Zhigang, LIU Jinsen, ZENG Xiaojing, HU Jiajie, AI Jianqiang

Online:2020-01-25 Published:2020-01-25
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低渗透底水油藏复合树脂堵水应用研究

王潜龙¹, 陈志刚², 刘金森³, 曾小敬⁴, 胡佳杰², 艾健强¹

1 西安石油大学石油工程学院 2 长庆油田分公司第八采油厂工艺所 3 长庆实业集团有限公司 4 中石油青海油田采油五厂工程技术室

作者简介:王潜龙( 1973 - ) , 博士, 副教授, 研究方向: 油气井工程和油田化学。地址: 陕西省西安市雁塔区电子二路 18 号西安石油大学,电话:15029061259, E - mail:153326100@ qq. com
基金资助:

Abstract

Abstract:

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摘要： 靖安油田大路沟区块属于低压、低渗、低产油藏，采用压裂、超前注水开发方式，储层裂缝发育及长621目的层底水发育，导致部分油井生产见水快，短期含水高于80％，因此，油井堵水迫在眉睫。目前油井堵水技术不成熟，主要采用凝胶加水泥封口方式堵水，凝胶易破胶，不能封堵裂缝通道；水泥流动性差，只能近井地带封堵，凝固后体积收缩，容易被水稀释，总体堵水效果差。针对以上问题，本文开发了新型复合树脂堵水体系，通过室内实验对pH值、温度、树脂浓度、调节剂浓度、矿化度等树脂堵剂固化影响因素进行了评价，该树脂具有流动性好，凝固时间可调，凝固后体积膨胀，封堵强度大，且有直角稠化特征，可有效封堵水流优势通道和底水双重功效。采用优化后的配方在罗21-35井进行了现场施工试验，日产油从措施前的０0.23 t上升到稳产后平均日产油1.45t，增幅530％；含水从94.84％下降为37.70％，降幅60.24％；一年内累计增油388.85 t，持续有效。

关键词: , 复合树脂, 油井堵水, 底水锥进

CLC Number:

WANG Qianlong, CHEN Zhigang, LIU Jinsen, ZENG Xiaojing, HU Jiajie, AI Jianqiang. Study on Water Shutoff by Used Composite Resin in Low Permeability Bottom Water Reservoir[J]. Drilling & Production Technology, 2020, 43(1): 129-131.

王潜龙, 陈志刚, 刘金森, 曾小敬, 胡佳杰, 艾健强. 低渗透底水油藏复合树脂堵水应用研究[J]. 钻采工艺, 2020, 43(1): 129-131.

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Study on Water Shutoff by Used Composite Resin in Low Permeability Bottom Water Reservoir

低渗透底水油藏复合树脂堵水应用研究

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