A fracturing operation method for a soluble full-bore sliding sleeve

Abstract

The invention discloses a fracturing construction working method adopting soluble full-size slide sleeves. The fracturing construction working method adopting the soluble full-size slide sleeves comprises the following steps: S1, selecting the proper soluble full-size slide sleeves and sleeve pipe toe-end slide sleeves; S2, designing a well pipe string structure; S3, setting a starting pressure ofthe sleeve pipe toe-end slide sleeves, a filling amount of hydraulic oil and an installation number of shear dowels; S4, completing a field passing test for well cementation rubber plugs and compiling codes of a control module; S5, carrying out simulation drifting construction working; S6, pouring the rubber plugs; S7, carrying out drifting and sleeve pipe scraping production working; S8, openingthe sleeve pipe toe-end slide sleeves; S9, pouring opening valve elements, and opening a plurality of the corresponding soluble full-size slide sleeves; and S10, gradually pouring the opening valve elements with different codes, sequentially opening the soluble full-size slide sleeves which correspond to different intervals, and finally realizing fracturing construction working for a whole well.The fracturing construction working method adopting the soluble full-size slide sleeves has the characteristics of increasing the working efficiency, reducing the working cost, facilitating to descending for the subsequent production test tools, and being capable of realizing infinite fracturing construction working.

Description

technical field [0001] The invention relates to the field of oil and gas development equipment, in particular to a fracturing operation method of a soluble full-diameter sliding sleeve. Background technique [0002] With the deepening of oil and gas exploration and development, large-scale fracturing methods such as horizontal well staged fracturing and volume fracturing have become the main technologies for efficient development of oil and gas reservoirs. At present, the existing staged fracturing technologies mainly include open hole packer + ball sliding sleeve staged fracturing technology and bridge plug + clustered perforation staged fracturing technology. At present, bridge plug + clustered perforation staged fracturing technology is the main technology for shale gas reservoir stimulation. The base is transported to the target layer to complete the setting and multi-cluster perforation joint operation, and then perform staged fracturing through the casing in the later...

AI Technical Summary

Problems solved by technology

[0003] During on-site construction operations, the bridge plug + clustered perforation staged fracturing technology has long horizontal coiled tubing drilling bridge plugs, difficulties in well passage, and high risks. The reduced penetration of the casing will affect the running of the bridge plugs, making it impossible to achieve Difficulties such as infinite stage fracturing; open hole packer + ball-sliding sleeve staged fracturing technology has problems such as limited ball seat difference, poor wellbore integrity, and difficulty in installing later operation tools, which seriously affect the construction progress on site

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