基于碳封存的二氧化碳注入压力确定方法及装置
By determining the reservoir closure pressure, the first breakthrough pressure, and the upper limit of the capillary closure pressure, the carbon dioxide injection pressure can be accurately calculated, solving the problem of insufficient determination of carbon dioxide injection pressure in the prior art, reducing carbon dioxide leakage, and improving the safety of storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA OILFIELD SERVICES LTD
- Filing Date
- 2025-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the determination of carbon dioxide injection pressure relies on human experience, which leads to frequent leakage of stored carbon dioxide and insufficient accuracy.
By determining the reservoir closure pressure of the target reservoir, calculating the first breakthrough pressure of carbon dioxide on the saturated formation water caprock, and combining the upper limit of the caprock capillary closure pressure, the upper limit of the carbon dioxide injection pressure is calculated, and the injection pressure is accurately determined using formulas and experimental methods.
This improved the accuracy of carbon dioxide injection pressure determination, reduced carbon dioxide leakage, and ensured the safety of storage.
Smart Images
Figure CN121251287B_ABST
Abstract
Citation Information
Patent Citations
Recognition method and recognition device for effective cover layer of petroliferous basin
CN116879114A
Method for selecting carbon dioxide sequestration rock reservoirs
CN117783480A