石油化工高等学校学报

石油化工高等学校学报 ›› 2015, Vol. 28 ›› Issue (6): 61-65.DOI: 10.3969/j.issn.1006-396X.2015.06.012

• 石油工程 • 上一篇    下一篇

新型页岩气储层保护剂S DME - 2的制备及特性

董兵强,  邱正松,  王伟吉,  钟汉毅,  宋丁丁   

  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)
  • 收稿日期:2015-03-27 修回日期:2015-04-29 出版日期:2015-12-25 发布日期:2015-12-07
  • 通讯作者: 邱正松( 1 9 6 4 - ) , 男, 博士, 教授, 博士生导师, 从事油气层保护和钻井液技术方面的研究; E - m a i l : q i u z s 6 3@s i n a.c o m。
  • 作者简介:董兵强( 1 9 9 0 - ) , 男, 硕士研究生, 从事钻井液技术研究; E - m a i l : d b q s 1 2 3@1 6 3. c o m。
  • 基金资助:
    国家自然科学基金( 5 1 4 7 4 2 3 6) ; 中国石油集团公司重点项目( 2 0 1 4 A - 4 2 1 2) ; 中国博士后科学基金( 2 0 1 4M 5 5 1 9 8 6) ;
    中央高校基本科研业务费专项资金( 1 4 C X 0 6 0 9 3 A) 。

Preparation and Performance of Novel Reservoir Protection Agent SDME2 Used for Shale Gas Reservoirs

  1. （College of Petroleum Engineering，China University of Petroleum（East China），Qingdao Shandong 266580，China）
  • Received:2015-03-27 Revised:2015-04-29 Published:2015-12-25 Online:2015-12-07

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摘要： 页岩气钻探开采过程中, 钻井液滤液侵入页岩储层易导致严重的水敏损害和液相圈闭, 严重影响了 页岩气地层钻井安全及页岩气产能。针对页岩气储层特性及储层损害主要因素, 基于纳米乳液制备理论及页岩储 层保护基本原理, 利用G e m i n i季铵盐型表面活性剂 GTN、 Tw e e n 8 0、 正戊醇和正辛烷作为主要原料, 制备出了纳米 乳液储层保护剂S DME - 2。性能评价结果表明, S DME - 2具有超低的界面张力, 可使页岩表面由水湿转变成中性润 湿, 显著降低岩心残余水饱和度, 提高超低渗页岩岩心渗透率恢复值, 降低储层水锁伤害; 可显著降低页岩对甲烷的 吸附量, 有利于甲烷分子的低压解吸。以纳米乳液S DME - 2作为储层保护剂, 构建了页岩气储层保护水基钻井液。 性能评价结果表明, 该钻井液流变性良好, 抑制性强, 具有优良的储层保护性能。

关键词: 纳米乳液, 储层保护,  , 页岩气, 水基钻井液

Abstract: Water sensitive damage and liquid trap caused by waterbased drilling fluid invasion are very prominent problems in the process of shale gas drilling and exploitation, which seriously affect drilling safety and production of shale gas well. According to the shale gas reservoir characterization and reservoir damage factor, based on nanoemulsion theory and basic reservoir protection principle, a novel nanoemulsion agents named SDME2 were developed by employing Gemini hyamine surfactant GTN, plus Tween 80, namyl alcohol and noctane as major raw materials. The results showed that the novel nanoemulsion agent could effectively reduce the surface tension of external fluid, increase contact angle, decrease water saturation in core, and increase recovery of low permeability reservoir permeability. The novel nanoemulsion agent was also conducive to shale gas desorption. Taking the newly developed shale gas reservoir protection agent as one of primary treatment agents, a new type of waterbased drilling fluid for shale gas reservoir protection was developed and its performance was good.

Key words: Nanoemulsion,    ,  Reservoir protection,    ,  Shale gas,    , Waterbased drilling fluid

引用本文

董兵强, 邱正松, 王伟吉. 新型页岩气储层保护剂S DME - 2的制备及特性[J]. 石油化工高等学校学报, 2015, 28(6): 61-65.

Dong Bingqiang， Qiu Zhengsong， Wang Weiji，et al. Preparation and Performance of Novel Reservoir Protection Agent SDME2 Used for Shale Gas Reservoirs [J]. Journal of Petrochemical Universities, 2015, 28(6): 61-65.

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