Tight gas reservoir multi-layer development gas well layering yield contribution evaluation method
An evaluation method and technology of tight gas, applied in the direction of mining fluid, earthwork drilling, wellbore/well components, etc., can solve the problems of poor efficiency, large individual differences, high cost, etc., and achieve strong feasibility, small workload, and accuracy high rate effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach
[0074] It should be noted that the structures, proportions, sizes, etc. shown in this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the technical contents disclosed in the present invention without affecting the functions and objectives of the present invention.
[0075] At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any su...
Embodiment 1
[0077] The invention discloses a method for evaluating the layered production contribution of gas wells in multilayer development of tight gas reservoirs, which comprises the following steps:
[0078] Step 1) predict the final cumulative production of the gas well to be tested;
[0079] Step 2) Predict the bottom hole flowing pressure of the gas well to be measured, and compare it with the original formation pressure to obtain the pressure drop;
[0080] Step 3) Establishing a diagram of the relationship between pressure drop and discharge radius of different reservoir types in the block to which the gas well to be tested belongs;
[0081] Step 4) Determine the reservoir type of each sublayer of the gas well to be tested, and determine the drainage of each sublayer of the gas well to be tested according to the pressure drop in step 2) and the relationship between pressure drop and drainage radius of different reservoir types in step 3) Radius, determine the leakage area of ...
Embodiment 2
[0085] Preferably, predicting the final cumulative production of the gas well to be tested in the step 1) is to use the production depletion method to predict the final cumulative production of the gas well to be tested, and first draw the actual production and cumulative production (actual cumulative production) of the gas well to be tested Then, the relationship between the production of gas wells at any time or the final cumulative production of gas wells and the initial production of gas wells is obtained by fitting, and then the abandoned production is given to obtain the time corresponding to the abandoned production, and the final cumulative production corresponding to the time corresponding to the abandoned production is The final cumulative production of gas logging wells (predicted cumulative production).
[0086] The final cumulative production prediction of gas wells is divided into two steps. One is to apply the production q at any time in Equation 1 g and gas wel...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Permeability | aaaaa | aaaaa |
Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka.patsnap.com/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap