Laboratory Study on Drilling Fluid of Mosaic Agent-Membrane Agent Synergistic Interaction for Reservoir Protection
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摘要: 在钻井过程中,为了减少钻井液对油气储层的损害,通常采用储层暂堵技术,而该技术的关键是要求暂堵粒子尺寸与地层孔喉合理匹配,这种匹配关系很难把握,从而影响保护油气层效果。针对传统暂堵技术在应用中的不足,提出了镶嵌剂与成膜剂协同增效保护储层技术。采用钻井液传统评价与砂心试片评价相结合的方法,筛选出了保护油气层的镶嵌剂XQ-3和成膜剂DL-7,室内试验结果表明,将两者复配后加入钻井液中,岩心渗透率暂堵率达到99.6%,岩心切片渗透率恢复率达到99.4%,与传统的暂堵剂相比分别提高了20.6%和15.3%,表现出良好的协同增效暂堵效果及对不同孔喉更好的适应性能。因此,XQ-3和DL-7是保护油气储层的理想钻井液添加剂。Abstract: In order to reduce the damage by drilling fluid to oil and gas formation during drilling,the temporary plugging technology for reservoir is usually selected and the key is that temporary plugging particle size reasonably matches the pore throat.The matching is difficult to grasp,thus affecting the reservoir protection.According to the drawback of traditional temporary plugging technology in application,the technology of mosaic agent-membrane agent synergistic interaction for reservoir protection was proposed.Mosaic agent XQ-3 and membrane agent DL-7 for reservoir protection were developed and selected based on the combination of traditional evaluation of drilling fluid and evaluation of sand core test piece.If both were compounded,the temporary blocking rate was 99.6% and the slicing core permeability recovery was 99.4%.Comparing with the traditional blocking technique,they were increased by 20.6% and 15.3% respectively,showing good synergistic interaction temporary blocking effect and stronger adaptability to different pores,which can be used as a new drilling fluid system for formation protection.
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[1] Abrams A.Mud design to minimize rock impairment due to particle invasion[J].JPT,1977,29(2):87-89.
[2] 王富华,邱正松,冯京海,等."超广谱"屏蔽暂堵钻井完井液新技术室内研究[J].石油钻探技术,2001,29(5):39-42. Wang Fuhua,Qiu Zhengsong,Feng Jinghai,et al.Lab study on the new techniques of superior shielding and temporary plugging drill-in fluids[J].Petroleum Drilling Techniques,2001,29(5):39-42. [3] 吕开河,邱正松,王在明.自适应屏蔽暂堵钻井液技术[J].中国石油大学学报:自然科学版,2008,32(2):68-71. Lü Kaihe,Qiu Zhengsong,Wang Zaiming.Techniques of auto-adapting shielding and temporary plugging drilling fluid[J].Journal of China University of Petroleum:Edition of Natural Science,2008,32(2):68-71. [4] 徐同台,陈永浩,冯京海,等.广谱型屏蔽暂堵保护油气层技术的探讨[J].钻井液与完井液,2003,20(2):39-41. Xu Tongtai,Chen Yonghao,Feng Jinghai,et al.The general- purpose temporary shield plugging technology in protecting hydrocarbon reservoir[J].Drilling Fluid Completion Fluid,2003,20(2):39-41. [5] 黄达全,许少营,田增艳.广谱型屏蔽暂堵保护油层技术在大港油田的应用[J].钻井液与完井液,2004,21(6):23-27. Huang Daquan,Xu Shaoying,Tian Zengyan.Application of general-purpose shielding temporary plugging technology in Dagang Oilfieid[J].Drilling Fluid Completion Fluid,2004,21(6):23-27. [6] 樊世忠,窦红梅.保护油气层技术发展趋势[J].石油勘探与开发,2001,28(1):78-84. Fan Shizhong,Dou Hongmei.The development trend of reservoir protection technology[J].Petroleum Exploration and Development,2001,28(1):78-84. [7] 刘大伟,康毅力,雷鸣,等.保护碳酸盐岩储层屏蔽暂堵技术研究进展[J].钻井液与完井液,2008,25(5):57-61. Liu Dawei,Kang Yili,Lei Ming,et al.Research progresses in temporary plugging technology for carbonate reservoir protection[J].Drilling Fluid Completion Fluid,2008,25(5):57-61. [8] 白小东,蒲晓林.水基钻井液成膜技术研究进展[J].天然气工业,2006,26(8):75-77. Bai Xiaodong,Pu Xiaolin.Evolutiong of membrane forming technology of water-based mud[J].Natural Gas Industry,2006,26(8):75-77. [9] 艾贵成.封堵成膜钻井液技术在昆2井的应用[J].石油钻采工艺,2007,29(1):89-91. Ai Guicheng.Application of plugging and film forming drilling fluid technology in Kun-2 Well[J].Oil Drilling Production Technology,2007,29(1):89-91. [10] 赵修太,李海涛,任熵,等.砂心试片评价钻井液性能的方法[J].断块油气田,2011,18(2):251-253. Zhao Xiutai,Li Haitao,Ren Shang,et al.Evaluation method of drilling fluid properties with sand core test piece[J].Fault-Block Oil Gas Field,2011,18(2):251-253.
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