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    深部煤层气全电动压裂装备配置与工艺技术

    Fully electric fracturing equipment configuration and operation technology for deep coalbed methane

    • 摘要: 利用电动压裂装备开展水力压裂是煤层气储层开发的新技术,还处于起步发展阶段,压裂装备的配套技术还待完善。以大宁–吉县区块深部煤层气电动压裂装备为例,结合压裂施工要求与装备作业能力,提出了煤层气电动压裂设备一体化配置方法。从电动压裂泵送装置、供配电系统、变频房与变频技术、低压管汇供液系统、运砂混砂装置、数字化压裂指挥控制中心和高压管汇系统等装备方面提出了具体配置,在吉深4-10平台3口井进行应用。应用结果表明,所形成的配套方法满足深部煤层气高压力、大排量、高砂比、作业时间长的压裂作业要求,能够提高整体作业效率及装备的自动化水平,实现绿色低碳开发。研究结果可为深部煤层气全电动压裂施工奠定装备基础,对后续规模化推广具有一定的借鉴意义。

       

      Abstract: The use of electric fracturing equipment for hydraulic fracturing is a new technology for coalbed gas reservoir development, which is still in its early stage of development, and the supporting technology of the fracturing equipment is not yet mature and needs to be perfected. Taking the electric fracturing equipment of coalbed methane in Daning-Jixian block as an example, the integrated configuration method of coalbed methane electric fracturing equipment is put forward according to the requirements of fracturing construction and the operation capacity of the equipment. Specific configuration requirements are put forward from electric fracturing device, power supply and distribution system, frequency conversion room and frequency conversion technology, low pressure manifold liquid supply system, sand transport and sand mixing device, digital fracturing command and control center and high pressure manifold system and other equipment, which are applied in Jishen 4-10 site. The application results show that the proposed method can meet the requirements of high pressure, large discharge, large sand ratio and long operation time, improve the overall operation efficiency and the automation level of equipment, and realize green and low-carbon development. The research results can lay the equipment foundation for fully electric fracturing of deep coalbed methane, and have certain reference significance for the subsequent large-scale promotion.

       

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