A method and device for disposing of a fracturing fluid intrusion in a well adjacent to a drilling well, and a storage medium

By adjusting and monitoring drilling fluid parameters, configuring replacement feedstock, and judging and handling fracturing fluid intrusion from adjacent wells in real time, the problem of drilling fluid performance deterioration caused by fracturing fluid intrusion from adjacent wells was solved, drilling safety and efficiency were improved, and costs were reduced.

CN122304699APending Publication Date: 2026-06-30PETROCHINA CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2024-12-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During hydraulic fracturing, the intrusion of fracturing fluid from adjacent wells into the drilling well leads to a sharp deterioration in drilling fluid properties, affecting drilling safety and increasing complexity, including problems such as increased viscosity and fluid loss, decreased density, overflow, and blowout.

Method used

By adjusting drilling fluid parameters, configuring replacement feedstock, and obtaining drilling fluid and environmental parameters, the system can monitor and determine in real time whether fracturing fluid has invaded the wellbore. If it has invaded, the drilling fluid is replaced with replacement feedstock and the parameters are adjusted; otherwise, the current state is maintained.

Benefits of technology

It effectively solves the problem of drilling fluid performance deterioration caused by fracturing fluid intrusion, improves drilling safety, ensures drilling efficiency, and reduces costs.

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Abstract

This invention belongs to the field of drilling technology and relates to a method, apparatus, and storage medium for handling fracturing fluid intrusion in adjacent wells during drilling. The method includes the following steps: adjusting drilling fluid parameters during the target placement stage; preparing replacement feedstock; obtaining drilling fluid performance parameters; obtaining environmental parameters; determining whether fracturing fluid has intruded into the wellbore based on the drilling fluid performance parameters and the environmental parameters; if so, replacing the drilling fluid with the replacement feedstock and adjusting the drilling fluid parameters; if not, maintaining the current drilling state. The method, apparatus, and storage medium for handling fracturing fluid intrusion in adjacent wells provided in this application can prevent fracturing fluid intrusion by adjusting the relevant properties of the drilling fluid, ensuring the smooth completion of drilling operations in disturbed wells.
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