Optimization design and well spacing method for three-dimensional development well pattern

A technology for optimal design and development of wells, applied in the field of oil and gas field development engineering research, can solve problems such as high economic cost, long time-consuming, difficult traversal, etc., and achieve simple calculation, easy-to-understand principles, intuitive and effective effects

Pending Publication Date: 2022-04-12
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

However, there are so many combinations of various parameters, it is difficult to traverse all of them, it takes a long time, and the economic cost of on-site practice is high, and it is difficult to find the globally optimal well pattern and spacing and parameter combinations to achieve the optimal development goal

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  • Optimization design and well spacing method for three-dimensional development well pattern
  • Optimization design and well spacing method for three-dimensional development well pattern
  • Optimization design and well spacing method for three-dimensional development well pattern

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Embodiment Construction

[0058] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0059] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0060] The optimal design and well layout method of the three-dimensional development well pattern provided by the present invention comprise the following steps:

[0061] 1) Obtain the basic physical properties of the target layer, and divide the development units vertically according to the physical properties. Each of the development units is superimposed and the seepage fields are independent of each other;

[0062] Ⅱ) Based on geophysical prospecting data, engineering practice data and well experience requirements, determine the values ​​of formation and development constants; determine the parameters to be optimized, optimize the type and value range of target parameters, and use them as boundary conditions for each parame...

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Abstract

The invention discloses an optimal design and well spacing method for a three-dimensional development well pattern. According to the principle of the method, the actual problem of well spacing optimization is converted into the problem of minimum value solving of non-linear multi-element collaborative optimization with conditional constraints. According to the characteristics of three-dimensional well pattern development, modeling can be carried out on each development unit, the optimized well spacing can be obtained based on an optimization method, an optimal solution set can be represented on a three-dimensional Pareto leading edge surface in a given three-dimensional rectangular coordinate system, and visual evaluation of the overall status and optimization potential of each development unit is achieved. Furthermore, after various constants and parameters are updated, the position of the optimal solution in the space can be recalculated and updated in real time by monitoring changes of input parameters, and a decision conclusion is provided for judging whether the scheme is more favorable or not. The method is simple in calculation, easy to understand in principle, visual, effective, rapid in calculation and high in operability.

Description

technical field [0001] The invention relates to an optimal design of a three-dimensional development well pattern and a well arrangement method, belonging to the field of oil and gas field development engineering research. Background technique [0002] In the development process of tight reservoirs, the method of three-dimensional arrangement of horizontal wells is required for development in order to achieve the maximum and optimal development effect. However, there are many on-site design and development parameters. How to integrate various geological, engineering and economic parameters to determine the well pattern and spacing in the development plan, to achieve the optimal parameter combination, and to achieve the best development goal is an important engineering problem. In the design of well pattern and well spacing, it is necessary to comprehensively optimize a series of issues such as geological conditions, engineering conditions, and economic conditions, and clarif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/20G06F111/04G06F111/06
Inventor 李国欣鲜成钢李曹雄申颍浩葛洪魁
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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