石油化工高等学校学报

石油化工高等学校学报 ›› 2014, Vol. 27 ›› Issue (4): 34-38.DOI: 10.3969/j.issn.1006-396X.2014.04.008

• 石油工程 • 上一篇    下一篇

沁端区块煤层气井压裂支撑剂优选实验研究

曲占庆1,  黄德胜1,  杨 阳2,  李小龙1,  周丽萍1   

  1. ( 1. 中国石油大学( 华东) 石油工程学院,山东青岛2 6 6 5 8 0; 2. 中海油研究总院钻采研究院, 北京1 0 0 0 2 7)
  • 收稿日期:2014-05-12 修回日期:2014-06-25 出版日期:2014-08-25 发布日期:2014-11-10
  • 作者简介:曲占庆( 1 9 6 3 - ) , 男, 博士, 教授, 从事油气田开发工程研究; E - m a i l : q u z h q@u p c . e d u. c n。
  • 基金资助:
    国家重大专项“ 大型油气田及煤层气开发” ( 2 0 1 1 Z X 0 5 0 5 1) 。

Experimental Ｒesearch of Ｐroppant Ｏptimization in CBM Ｗells of Qinduan Ｂlock

  1. （1.College of Petroleum Engineering，China University of Petroleum, Qingdao Shandong 266580, China;  2. Drilling and Production Research Institute, CNOOC Research Institute, Beijing 100027, China）
  • Received:2014-05-12 Revised:2014-06-25 Published:2014-08-25 Online:2014-11-10

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摘要： 根据沁端区块煤储层特点, 进行支撑剂优选研究和煤层气井压裂裂缝导流能力实验研究, 对比分析 了在不同闭合压力下铺砂质量浓度、 支撑剂粒径、 支撑剂粒径组合、 支撑剂嵌入等因素对煤岩层导流能力的影响, 优 选出了煤层压裂改造用支撑剂体系。研究结果表明, 支撑剂充填层导流能力随闭合压力的增加而降低, 支撑剂粒径 越大其导流能力越高, 在压裂施工条件允许情况下应尽量多使用大粒径的支撑剂; 沁端区块宜采用2 0 / 4 0目和1 6 / 2 0目兰州石英砂作为压裂用支撑剂, 并确定了体积比为4∶1的支撑剂粒径组合方式; 加大铺砂质量浓度能够在一 定程度上提高裂缝的导流能力, 降低支撑剂嵌入对导流能力的影响。

关键词: 煤层气井压裂,    ,  , 支撑剂优选,    ,  , 导流能力,     ,  , 实验研究,    ,  影响因素

Abstract: According to the characteristics of coal reservoir in Qinduan block, the experimental research on proppant optimization and fracture conductivity were conducted. The experiment contrastively analyzed the factors such as sand mass concentration, proppant particle size, proppant particle size combination, proppant embedment, and their effects on conductivity of fracturing under the condition of various closure pressures. Fracturing proppant system was optimized through experimental study. The results show that the conductivity of proppant pack decreased along with the increasing of closure pressures, so if the fracturing conditions was permitted, we should use large diameter proppant as much as possible; Qinduan block should adopt the 20/40 mesh and 16/20 mesh Lanzhou silica sand as fracturing proppant, and when the ratio was 4∶1, the combination is appropriate; increasing sand mass concentration can increase fracture conductivity to some extent and reduce the impact of proppant embedment on the conductivity.

Key words: CBM well fracturing,    ,  Proppant optimization,    ,  Conductivity,    , Experimental research,    ,  Influence factors

引用本文

曲占庆, 黄德胜, 杨 阳. 沁端区块煤层气井压裂支撑剂优选实验研究[J]. 石油化工高等学校学报, 2014, 27(4): 34-38.

Qu Zhanqing,Huang Desheng,Yang Yang,et al. Experimental Ｒesearch of Ｐroppant Ｏptimization in CBM Ｗells of Qinduan Ｂlock[J]. Journal of Petrochemical Universities, 2014, 27(4): 34-38.

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