A method and system for determining the minimum EUR for a gas well recovery

By establishing the relationship between the total cost of a single well and the cumulative production, the minimum EUR for recovering the total cost of a gas well is calculated, which solves the balance problem between reducing gas well costs and increasing production in existing technologies, and realizes accurate assessment of gas well cost optimization and profitability.

CN122114337APending Publication Date: 2026-05-29PETROCHINA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies, when analyzing the total cost of gas wells, lack a geological perspective and fail to link the costs to the fundamental drivers of these costs. This results in a lack of balance between cost reduction and production increase, making it difficult to provide effective cost optimization suggestions.

Method used

By establishing the relationship between the total cost of a single well and its cumulative production, the minimum EUR for recovering the total cost of a gas well is calculated. Combining the break-even principle of techno-economics, the lower limit of the cumulative production of a single well is determined, specific cost control targets and parameter values ​​are provided, and a EURcg value chart is drawn to assist enterprise decision-making.

Benefits of technology

It enables accurate identification of gas well cost optimization points, provides quantitative cost control and reduction targets and references, and intuitively displays profitability by drawing EURcg value charts, helping companies optimize development plans and reduce costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of petroleum geological exploration, and discloses a method and system for determining the lowest EUR of the total cost of gas well recovery, comprising the following steps: S1, establishing a relationship between the company's total cost control reduction target and the cumulative production of single wells according to the principle of technical economics break-even; S2, determining the parameter value method in the calculation formula; S3, according to the parameters determined in S2 and the company's total cost control reduction target, the calculation formula in S1 is brought into the calculation; S4, draw the single well EURcg value graph under different company total cost control reduction targets, and compare it with the single well EUR predicted by the evaluation block geology, to judge the profitability of the evaluation block; S5, the application process of the method for determining the lowest cumulative production of single wells of the total cost of gas well recovery; the present application provides multi-target comparison data by calculating the EURcg value under different control reduction targets, which is convenient for the company to select the optimal control reduction target, and achieves the beneficial effect of providing reasonable suggestions for the company's cost control reduction.
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