Oil well development method and apparatus

By acquiring reservoir data and adjusting the well inclination angle through multiple drilling operations, the well design was optimized, solving the problems of low oil production and low drilling success rate, and achieving efficient oil production.

CN114841822BActive Publication Date: 2026-03-27PETROCHINA CO LTD
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Patent Information

Application Number
CN202110136876.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-02-01
Publication Date
2026-03-27
Estimated Expiration
2041-02-01

AI Technical Summary

Technical Problem

Existing technologies suffer from low oil well production and low oil layer penetration rates, especially when drilling through multiple oil-bearing sand layers, which can easily reduce oil production and oil layer penetration rates.

Method used

By acquiring reservoir data of the target oil reservoir, including the thickness and saturation of the oil-bearing sand layers, adjusting the well inclination angle and drilling multiple times, the target oil-bearing sand layers are identified, forming multiple oil-bearing layers in the oil well, and the well design is optimized to improve oil production and drilling success rate.

Benefits of technology

It increased the oil production and oil layer penetration rate of oil wells, ensured effective penetration of each oil-bearing sand layer, and improved the oil production effect of oil wells.

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Abstract

The application discloses an oil well development method and device, and belongs to the technical field of oil exploitation. The method comprises the following steps: acquiring reservoir data of a target oil reservoir, wherein the reservoir data comprises oil layer thickness and oil saturation of N oil-bearing sand layers; drilling to a first position with a first length in the target oil reservoir at a first angle of inclination to obtain a first section of oil layers of an oil well; determining a target oil-bearing sand layer based on the oil layer thickness and the oil saturation of the N oil-bearing sand layers; adjusting the angle of inclination to a second angle, drilling to a second position with a second length from the first position at the second angle to obtain a second section of oil layers of the oil well; adjusting the angle of inclination to a third angle, and drilling to a third position from the second position at the third angle to obtain a third section of oil layers of the oil well; determining a target oil well based on the first section of oil layers of the oil well, the second section of oil layers of the oil well and the third section of oil layers of the oil well, and carrying out oil extraction based on the target oil well. The method can improve the oil production of the target oil well and improve the oil layer drilling rate of the target oil well.
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