大港油田陆相页岩油滑溜水连续加砂压裂技术

田福春 刘学伟 张胜传 张高峰 邵力飞 陈紫薇

田福春, 刘学伟, 张胜传, 张高峰, 邵力飞, 陈紫薇. 大港油田陆相页岩油滑溜水连续加砂压裂技术[J]. 石油钻探技术, 2021, 49(4): 118-124. doi: 10.11911/syztjs.2021021
引用本文: 田福春, 刘学伟, 张胜传, 张高峰, 邵力飞, 陈紫薇. 大港油田陆相页岩油滑溜水连续加砂压裂技术[J]. 石油钻探技术, 2021, 49(4): 118-124. doi: 10.11911/syztjs.2021021
TIAN Fuchun, LIU Xuewei, ZHANG Shengchuan, ZHANG Gaofeng, SHAO Lifei, CHEN Ziwei. Continuous Sand Fracturing Technology with Slick Water for Continental Shale Oil in the Dagang Oilfield[J]. Petroleum Drilling Techniques, 2021, 49(4): 118-124. doi: 10.11911/syztjs.2021021
Citation: TIAN Fuchun, LIU Xuewei, ZHANG Shengchuan, ZHANG Gaofeng, SHAO Lifei, CHEN Ziwei. Continuous Sand Fracturing Technology with Slick Water for Continental Shale Oil in the Dagang Oilfield[J]. Petroleum Drilling Techniques, 2021, 49(4): 118-124. doi: 10.11911/syztjs.2021021

大港油田陆相页岩油滑溜水连续加砂压裂技术

doi: 10.11911/syztjs.2021021
基金项目: 中国石油重大科技专项“大港油区效益增储稳产关键技术研究与应用”(编号:2018E-11)和“陆相中高成熟度页岩油勘探开发关键技术研究与应用”(编号:2019E-26)联合资助
详细信息
    作者简介:

    田福春(1987—),男,山东潍坊人,2009年毕业于中国石油大学(华东)资源勘查工程专业,2012年获中国石油大学(华东)矿产普查与勘探专业硕士学位,高级工程师,主要从事油气田开发方面的研究工作。E-mail:tianfchun@petrochina.com.cn

  • 中图分类号: TE357.1

Continuous Sand Fracturing Technology with Slick Water for Continental Shale Oil in the Dagang Oilfield

  • 摘要: 针对页岩油水平井采用常规滑溜水压裂时存在用液量大、砂比低、增产效果不理想等问题,通过优选聚合物降阻剂,优化黏土稳定剂、破乳助排剂和过硫酸盐类破胶剂的加量,形成了调节聚合物降阻剂加量即可调控滑溜水压裂液黏度的变黏滑溜水压裂液体系。通过支撑剂导流能力模拟试验,优选了70/140目石英砂和40/70目陶粒的支撑剂组合,经先导性试验,形成了大港油田陆相页岩油滑溜水连续加砂压裂技术。该技术在G页2H井进行了现场试验,有效提高了施工效率和单位液体的携砂量,减少了压裂液用量,形成了较好的缝网体系,提高了储层改造程度,取得了良好的压裂增产效果。现场试验表明,该技术能够满足页岩油水平井滑溜水连续加砂压裂要求,可以为页岩油高效开发提供技术支撑。
  • 图  1  聚合物降阻剂B的质量分数与滑溜水黏度的关系

    Figure  1.  Viscosity of slick water with different concentrations of friction reducer B

    图  2  变黏滑溜水压裂液耐温抗剪切性能测试结果

    Figure  2.  Temperature resistance and shear resistance of slick water with variable viscosity

    图  3  变黏滑溜水压裂液降阻率随降阻剂B溶解时间的变化曲线

    Figure  3.  Variation curve of the resistance reducing ratio of slick water with variable viscosity with the dissolution time of friction reducer B

    图  4  不同粒径、不同铺置浓度支撑剂导流能力模拟结果

    Figure  4.  Conductivity simulation results of proppants with different particle sizes and concentrations

    图  5  粉陶和粉砂导流能力模拟结果对比

    Figure  5.  Comparison between the conductivity simulation results of ceramic powder and silt

    图  6  不同粒径条件下支撑剂密度对沉降速度的影响

    Figure  6.  Effect of the density of proppants with different particle sizes on settling velocity

    图  7  G页2H井第六段压裂施工曲线

    Figure  7.  Fracturing curve of the sixth section of Well GY2H

    表  1  4种聚合物降阻剂的溶解时间和其溶液的表观黏度

    Table  1.   Dissolution time and apparent viscosity of four polymer-based friction reducers

    降阻剂类型溶解时间/s 表观黏度/(mPa·s)
    A固体粉剂95317
    BW/O液体乳剂30118
    CW/O液体乳剂64 45
    DW/W液体乳剂28 32
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-02-07
  • 修回日期:  2021-05-31
  • 网络出版日期:  2021-02-25
  • 刊出日期:  2021-08-25

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