A Well Pattern Balanced Injection-production and Supporting Guarantee Method in High Water Cut Stage
A staged, well-patterned technology for fluid production, earthmoving, wellbore/well components, etc.
Active Publication Date: 2022-04-26
CHANGZHOU UNIV
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is: in order to overcome the deficiencies of the prior art, the present invention provides a design method that can solve the problem of optimization of the existing well network fluid volume distribution, injection and production, and solve the problem from the perspective of fluid volume optimization and supporting support. A well pattern balanced injection-production and supporting guarantee method for high water-cut stage
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0033] Such as figure 1 A well pattern balance injection-production and supporting guarantee method in the stage of high water cut shown includes the following steps:
[0034] Step 1. Calculation of block macro allocation amount
[0035] The "macro injection" is based on the entire oil field or block as the research object, and the injection volume of the oil field or block is determined according to the development rules of the oil field or block, so as to establish the staged water injection and staged oil production of the oil field or block. , The mathematical model between the stages of liquid production, so as to obtain the quantitative relational expres...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention provides a method for balanced injection and production of well pattern in high water-cut stage and supporting guarantee method, including establishing a calculation method to characterize block-level "macro-injection volume", and establishing the water production rate and oil production rate in the current water-cut stage macroscopically from the block Calculate the total water injection rate of the current block based on the relationship between water injection rate and water injection rate; from the perspective of the difference between well groups, establish a "microcosmic injection" calculation method for the fluid volume of the central water injection well at the well group level; establish the central water injection well and its corresponding The "inter-well re-optimization" calculation method of the inter-well optimal injection-production rate of the production well obtains the optimization of the liquid volume ratio of the production well; establishes the interlayer of the wellbore of the central water injection well and the injection-production well in the well group from the vertical and three-dimensional perspectives Reservoir measures guarantee method for optimal distribution of liquid volume between reservoirs. The invention solves the problem of balanced injection-production fluid volume distribution of well pattern in high water-cut stage and guarantees three-dimensional measures in vertical plane, and enriches the scientific application of method theory and technology of hydrodynamically enhanced oil recovery in high water-cut stage of oil field.
Description
technical field [0001] The invention relates to the field of comprehensively adjusting injection-production fluid volume optimization in oilfields, in particular to a method for balanced injection-production of well patterns in a high water-cut stage and supporting guarantee methods. Background technique [0002] Oilfield development oil and water wells are affected by many factors. Due to the differences in various parameters such as reservoir thickness, physical properties, saturation, and injection-production spacing between wells, blocks under different geological conditions The amount of liquid required for injection and production is different, and the amount of liquid injected and produced is also different in different water injection periods of the same block and in different injection and production well groups and even between different well layers within the well group; The interlayer seepage resistance and water flooding degree of injection-production wells betw...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/20E21B43/30E21B49/00
CPCE21B43/20E21B43/30E21B49/00
Inventor 郭文敏尤启东吕爱华陈刚唐湘明
Owner CHANGZHOU UNIV