Development and application of HPR high-temperature and high-pressure fracturing packer
Keywords:
anti-outburst, field testAbstract
During operations of wells with high temperature and high pressure, the fracturing packers are susceptible to failure of isolation during fracturing, failure of release after fracturing, difficulty in retrieval, and inability to pull out the pipe string. The imported fracturing packers are characterized by high operation costs and long delivery cycles, which restrict the exploration and development with deep and ultra-deep wells to a certain extent. In order to satisfy the operations of deep and ultra-deep wells with high temperature and high pressure in Tarim Basin, Junggar Basin, Turpan-Hami Basin, Qaidam Basin and other regions, an HPR high-temperature and high-pressure fracturing packer with a temperature resistance of 200 ℃ and a pressure difference of 105 MPa was developed. This fracturing packer uses special high polymer material for anti-outburst of the rubber packer and integrates the anchoring mechanism and the sealing mechanism. The laboratory setting and releasing experiments show that the fracturing packer meets the performance parameters required on site. The field test in Well ET1 proves that the fracturing packer is well performed in sealing and anchoring, and released successfully after bleeding and gas test. The HPR high-temperature and high-pressure fracturing packer provides a strong technical support for fracturing of wells with high temperature and high pressure. © 2023 Well Testing. All rights reserved.
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