Gas field planning yield prediction method
By selecting typical wells to establish single-well production profiles and using calculation programs to automatically calculate the overall gas field production, the problem of cumbersome and error-prone gas field planning production profiles has been solved, achieving efficient and accurate gas field production forecasting and decision support.
Patent Information
- Application Number
- CN202411462282.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2026-04-21
AI Technical Summary
Conventional gas field planning production profile methods are cumbersome and prone to errors, especially when the workload deployment cycle is increased from annual to monthly, making it difficult to adjust the gas production profile and lacking a fast and accurate planning method.
By selecting typical wells, a single-well production profile for the entire production cycle is established. The relationship between the total production at each time point in the single-well production profile and the number of wells deployed in each month and the monthly production of the corresponding typical well is determined. The calculation program is then used to automatically calculate the total production at each time point of the overall gas field production profile.
It has improved the accuracy and efficiency of gas field planning and production forecasting, simplified redundant calculations, provided accurate decision-making basis, reduced ineffective drilling and development costs, and improved economic benefits.
Smart Images
Figure CN121903040A_ABST
Abstract
Claims
1. A method for predicting production in gas field planning, characterized in that, The method includes: Select a typical well and establish a single-well production profile for the entire production cycle of the typical well; Based on the single-well production profile, determine the relationship between the total production at each time point in the planned production profile and the number of wells deployed in each month and the monthly production of the corresponding typical well; The total production at each time point of the overall gas field production profile is determined based on the aforementioned relationship.
2. The gas field planning and production prediction method according to claim 1, characterized in that, The selected typical wells include: Collect historical production data from multiple gas field wells; Typical wells are identified based on the historical production data.
3. The gas field planning and production prediction method according to claim 1, characterized in that, The establishment of a single-well production profile covering the entire production cycle for the typical well includes: Based on the historical production data of the typical well, the monthly gas production of the typical well during the period from the current state to its abandonment is predicted to obtain the predicted data; Using the historical production data of the typical well and the predicted data, a single-well production profile for the entire production cycle is established.
4. The gas field planning and production prediction method according to claim 3, characterized in that, The method of predicting the monthly gas production of a typical well from its current state until its abandonment based on its historical production data yields the following predicted data: Based on the historical production data of the typical wells, a production fitting curve is generated; Based on the production fitting curve, the monthly gas production of the typical well during the period from its current state to its abandonment is predicted to obtain the predicted data.
5. The gas field planning and production prediction method according to claim 1, characterized in that, The method further includes: Gas field production wells are classified, and typical wells of different types are selected for each category; The formula for determining the relationship between the total production at each time point in the planned production profile and the number of deployed wells and the corresponding monthly production of typical wells includes: Determine the relationship between the total production at each time point in the planned production profile and the number of wells deployed each month and the monthly production of the corresponding typical well.
6. The gas field planning and production prediction method according to claim 5, characterized in that, The formula for determining the relationship between the total output at each time point in the planned output profile and the number of deployment wells of each type and the corresponding monthly output of typical wells in each month includes: The type and number of wells to be deployed each month will be determined sequentially; Calculate the monthly gas production of all deployed wells of each type based on the monthly gas production of a typical well from commissioning to abandonment. Calculate the total monthly gas production of all deployed wells based on the monthly gas production of all deployed wells of each type.
7. The gas field planning and production prediction method according to claim 1, characterized in that, The determination of the total production at each time point of the overall gas field production profile based on the aforementioned relationship includes: Write a calculation program based on the aforementioned relation; The calculation program automatically calculates the total production at each time point of the overall production profile of the gas field.
8. The gas field planning and production prediction method according to any one of claims 1 to 7, characterized in that, The method further includes: Based on the total production at each time point, draw an overall production profile of the gas field.
9. The gas field planning and production prediction method according to claim 8, characterized in that, The method further includes: When optimizing and adjusting the number of wells deployed each month, the overall production profile of the gas field will be updated simultaneously.
10. The gas field planning and production prediction method according to claim 9, characterized in that, The synchronous update of the overall production profile of the gas field includes: The overall production profile of the gas field is updated synchronously according to the aforementioned relationship.