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低孔低渗储层完井改造一体化工作液的研究与应用

罗刚,  任坤峰,  邢希金,  舒福昌,  向兴金,  郭庆

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文章导航 > 钻井液与完井液  > 2017 >  34(3): 117-121
罗刚, 任坤峰, 邢希金, 舒福昌, 向兴金, 郭庆. 低孔低渗储层完井改造一体化工作液的研究与应用[J]. 钻井液与完井液, 2017, 34(3): 117-121. doi: 10.3969/j.issn.1001-5620.2017.03.023
引用本文: 罗刚, 任坤峰, 邢希金, 舒福昌, 向兴金, 郭庆. 低孔低渗储层完井改造一体化工作液的研究与应用[J]. 钻井液与完井液, 2017, 34(3): 117-121. doi: 10.3969/j.issn.1001-5620.2017.03.023
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LUO Gang, REN Kunfeng, XING Xijin, SHU Fuchang, XIANG Xingjin, GUO Qing. Study and Application of A Composite Well Completion and Stimulation Fluid for Low Porosity and Low Permeability Reservoirs[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 117-121. doi: 10.3969/j.issn.1001-5620.2017.03.023
Citation: LUO Gang, REN Kunfeng, XING Xijin, SHU Fuchang, XIANG Xingjin, GUO Qing. Study and Application of A Composite Well Completion and Stimulation Fluid for Low Porosity and Low Permeability Reservoirs[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(3): 117-121. doi: 10.3969/j.issn.1001-5620.2017.03.023
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低孔低渗储层完井改造一体化工作液的研究与应用

doi: 10.3969/j.issn.1001-5620.2017.03.023

  • 1. 湖北汉科新技术股份有限公司, 湖北荆州 434000;

  • 2. 中海油研究总院, 北京 100027;

  • 3. 长江大学化学与环境工程学院, 湖北荆州 434023

基金项目: 

中海油研究总院科研项目"储层敏感性评价及钻完井液体系优选"（CCL2016RCPS0084PSN）。

详细信息
    作者简介:

    罗刚,高级工程师,硕士研究生,1978年生,主要从事油田化学方面的研究工作。电话(0716)8327103;E-mail:luogang8658@163.com。

    通讯作者:

    舒福昌,教授,博士,1966年生,从事油田化学方面的研究工作。E-mail:shufc@163.com。

  • 中图分类号: TE257.6

Study and Application of A Composite Well Completion and Stimulation Fluid for Low Porosity and Low Permeability Reservoirs

  • 1. Hubei Hanc New-Technology Co. Ltd., Jingzhou, Hubei 434000;

  • 2. CNOOC Research Institute, Beijing 100027;

  • 3. College of Chemistry & Environmental Engineering, Yangtze University, Jingzhou, Hubei 434000

    摘要
  • 摘要: 针对海上M油田储层段低孔低渗的特点，如果使用常规完井液，仅仅起到完井的作用，不能对储层进行改造达到提高产能的目的。通过大量室内实验，优选出了适合低孔低渗储层的降压助排剂HWDA-2、溶蚀剂HTA-H、缓蚀剂HCA101-8以及防乳破乳剂H409。最终研究出1套适合该油田低孔低渗储层的完井改造一体化工作液体系，在完井的同时，其对储层也具有一定的改造能力。性能评价结果表明，体系具有良好的防膨性，平均防膨率为96.4%，较低的腐蚀性以及较好的储层改造能力，岩心驱替渗透率恢复值可以达到120%以上。现场2口井的应用情况表明，使用完井改造一体化工作液的油井比使用常规隐形酸完井液时具有较低的表皮系数、较高的比采油指数，并且初期产油量增加30%以上，具有比较明显的增产效果。

     

    Abstract: Wells drilled in the offshore low porosity low permeability M oilfield are completed with conventional completion fluidsthatlack the ability to stimulate the reservoirs. A composite well completion and stimulation fluid has recently been formulated with some optimized additives suitable for use in low porosity low permeability reservoirs, such as a clean-up additive HWDA-2, a corrosion solvent HTA-H, a corrosion inhibitor HCA101-8, and a demulsifier (with emulsification prevention ability) H409. This fluid is both a well completion fluid and a stimulation fluid. In laboratory experiments, the fluid showed percent reduction of core swelling of 96.4% and percent permeability recovery of 120%, indicating that the fluid had good inhibitive capacity and low corrosion. Application of the fluid on two wells acquired lower skin factor and higher specific productivity index compared with other wells completed with conventional latent acid completion fluids. Early-stage oil production was increased by about 30%, indicating that the fluid had good stimulation capacity.

     

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  • 收稿日期:  2017-01-07
  • 刊出日期:  2017-05-31

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