Pressure production allogeneized development method for fracturing transformation of unconventional oil and gas reservoir in water-poor area

By separating the functions of fracturing wells and production wells in water-scarce areas and employing in-well explosive fracturing methods, the problems of water resource consumption and casing damage have been solved, enabling economical and efficient reservoir stimulation and exploitation.

CN121382147APending Publication Date: 2026-01-23徐鹏
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Patent Information

Application Number
CN202410976682.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-07-21
Publication Date
2026-01-23

AI Technical Summary

Technical Problem

Existing fracturing methods consume large amounts of water resources in water-poor oil and gas reservoirs, leading to damage to production casings, affecting normal production, and are also costly and cumbersome.

Method used

The in-well explosive fracturing method separates the functions of fracturing wells and production wells. Fracturing wells are used for reservoir stimulation, while production wells are used for production. By utilizing open-hole completion and casing completion designs, combined with fracture tracing and distribution prediction technologies, production wells are precisely deployed.

Benefits of technology

This effectively prevented damage to the production casing, reduced water consumption and construction costs, simplified the process, and ensured the normal production of oil and gas wells.

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Abstract

The invention provides a pressure production allogeneized development method for fracturing transformation of an unconventional oil and gas reservoir in a water-poor area. According to the method, the two functions of fracturing and production of the oil and gas well are thoroughly separated, the concepts of the fracturing well and the production well are clearly put forward, and it is indicated that the fracturing well is a specific object for implementing reservoir fracturing transformation operation in an oil and gas area and does not participate in oil and gas production; the production well undertakes the exploitation function of oil and gas resources in an oil and gas area, and oil and gas reservoir fracturing transformation operation is not carried out. The fracturing well achieves the purpose of reservoir fracturing transformation in an oil and gas area by implementing explosion fracturing in the well, and the production well carries out oil and gas exploitation by analyzing fracture forming and fracture distribution conditions of the fracturing well and accurately deploying around a main fracture distribution area. A fractured well is mainly subjected to barefoot well completion, and the well body structure needs to be simple; a production well is mainly subjected to casing perforation well completion, and a shaft and a reservoir stratum should be completely communicated. Compared with an existing fracturing transformation method, the method has the advantages that a large amount of water resources do not need to be consumed, and the method is environmentally friendly; (2) the construction operation cost is low, and the economical efficiency is good; (3) the construction process is simple, convenient and fast; and (4) production well casing damage cannot be caused, and the oil and gas production safety is high.
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