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近年来,随着低渗透致密油藏水平井的大规模开发,水力喷砂射孔压裂技术得到了广泛的应用,单井施工周期得到了有效的缩短,单井产量大幅度提高,但是该项技术在应用过程中,存在喷嘴寿命短、流量较低,而且仅靠单一裂缝很难取得预期的改造效果的问题,如何解决这一难点成为水平井压裂技术发展的关键,根据体积压裂技术原理,提出分簇多段压裂思路,有效的解决了这一难点,为低渗透致密油藏水平井的大规模开发提供了技术支撑。
In recent years, with the large-scale development of horizontal wells in low permeability and tight oil reservoirs, the technology of hydraulic sandblasting and perforation fracturing has been widely used, the single well construction cycle has been effectively shortened, and the single well production has been greatly increased. However, In the process of application, there is a problem that nozzle life is short, flow rate is low, and it is difficult to achieve the expected revamping effect only by a single crack. How to solve this problem has become the key to the development of horizontal well fracturing technology. According to the volume fracturing Technical principle, put forward multi-segment fracturing ideas, effectively solve this difficult point, and provide technical support for the large-scale development of horizontal wells in low permeability and tight oil reservoirs.