High-temperature and high-pressure oil-gas well cleaning completion pipe string and process
A well completion string, high temperature and high pressure technology, applied in the direction of wellbore/well components, drill pipe, casing, etc., can solve the problems of out-of-control blowout, low pressure bearing capacity, and complex accident handling, so as to improve the internal pressure resistance strength , high pressure bearing capacity of the pipe string, and the effect of improving the efficiency of jam release
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[0058] Such as figure 1 As shown, a safe, reliable and multi-functional clean completion string of a high temperature and high pressure oil and gas well is connected sequentially from top to bottom: tubing 1, packer 2, ball seat 4, fracturing sliding sleeve 3, high-strength temporary plugging screen 5 , perforated screen pipe 7, guide shoe 8. A high-pressure sealing safety joint is installed at intervals of 3-5 high-strength temporary plugging screens 5 in the string below the packer 2. The temporary plugging screen is located in the production zone, the fracturing sliding sleeve 3 is located in the upper boundary of the production zone, and the perforated screen 7 is located in the lower boundary of the production zone.
[0059] Such as figure 2 As shown, the high-strength temporary plugging screen 5 is composed of a base pipe 401 and a composite hole plug 402. The base pipe 401 is processed by the API standard oil pipe 1, and a plurality of holes are uniformly arranged on...
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