Fracturing and completion integrated method adopting coiled tubing and production tubing combined tubing string
A technology for producing oil pipes and composite pipes, which is applied in the fields of fluid production, earth-moving drilling, wellbore/well components, etc., can solve problems such as large construction risks, polluted intervals, failure to achieve continuous liquid carrying, etc., and reduce reservoir formation. damage effect
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[0023] Example 1:
[0024] The purpose of the present invention is to provide an integrated method for fracturing and well completion of a coiled tubing and production tubing combination string string, so as to simplify the construction process and reduce the damage to the reservoir by the killing.
[0025] This embodiment provides a method such as figure 1 The shown integrated method for fracturing and completion of the coiled tubing and production tubing combination string includes the following steps:
[0026] Step 1) Run in the combined pipe string: Connect the lower end of the coiled tubing 1 with the connector 2, the production tubing 3, the hydraulic drop 4, the mechanical casing coupling positioner 5, the ejector 6, the Y241 packer, and the guide. The check valve 8 is combined into a combined pipe string, which runs into the wellbore;
[0027] Step 2) Setting of the first interval: positioning by the casing collar locator, aiming the injector 6 at the design perforation posit...
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