Method and device for optimizing water injection strategy in oil field recovery

An optimization method and strategy technology, applied in the computer field, can solve problems such as crude oil damage, unreliable water injection methods, and impact on oil recovery

Active Publication Date: 2022-01-25
BEIJING GRIDSUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiments of the present invention provide a water injection strategy optimization method and device for oil recovery in oil fields, to at least solve the problem that the water injection method used in the recovery of crude oil in the related art is unreliable, easily causes damage to crude oil, and affects the quality of crude oil. technical issues of recovery

Method used

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  • Method and device for optimizing water injection strategy in oil field recovery
  • Method and device for optimizing water injection strategy in oil field recovery
  • Method and device for optimizing water injection strategy in oil field recovery

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Embodiment 1

[0028] According to an embodiment of the present invention, a method embodiment of a water injection strategy optimization method for oil recovery in an oil field is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a set of computer-executable instructions such as computer system, and although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0029] figure 1 It is a flowchart of a water injection strategy optimization method for oil recovery in an oil field according to an embodiment of the present invention, such as figure 1 As shown, the water injection strategy optimization method used in oil field recovery includes the following steps:

[0030] Step S102, collecting the first characteristic parameters in the process of crude oil recovery in the real environment, wherein the first characteri...

Embodiment 2

[0055] According to the embodiment of the present invention, there is also provided a water injection strategy optimization device for oil recovery in oil fields. Optimization method of water injection strategy. The water injection strategy optimization device used in oil recovery in oil fields provided by the embodiments of the present invention is introduced below.

[0056] image 3 is a schematic diagram of a water injection strategy optimization device used in oil recovery in an oil field according to an embodiment of the present invention, such as image 3 As shown, the water injection strategy optimization device used in oil field recovery includes: a collection unit 31 , a first update unit 33 , a first training unit 35 and a first optimization unit 37 . The water injection strategy optimization device used in oil field recovery will be described in detail below.

[0057] The collection unit 31 is used to collect the first characteristic parameters in the crude oil r...

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Abstract

The invention discloses a water injection strategy optimization method and device used in oil recovery in an oil field. Wherein, the method includes: collecting the first characteristic parameters in the crude oil recovery process in the real environment, wherein the first characteristic parameters include: characteristic data in the water injection strategy, the recovery factor of crude oil obtained based on the water injection strategy, and the water injection strategy The evaluation value of the value; update the first characteristic parameter into the virtual environment, wherein, the virtual environment is used for learning the planning algorithm for optimizing the water injection strategy; perform the first predetermined number of times on the first characteristic parameter in the virtual environment training to obtain the second feature parameter; update the second feature parameter to the real environment, and use the second feature parameter to optimize the water injection strategy in the first feature parameter to obtain the optimized water injection strategy. The invention solves the technical problems in the related art that the water injection method adopted in crude oil recovery is unreliable, easily causes damage to crude oil, and affects the recovery rate of crude oil.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a water injection strategy optimization method and device used in oil recovery in oil fields. Background technique [0002] Oilfield water injection development is the process of replenishing energy to the formation during oilfield development, using injected water to displace crude oil in the reservoir, and ultimately enhancing the recovery factor. The oil reservoir is buried deep underground, and the knowledge of the oil reservoir is like a gray box. The unknown conditions can only be inferred from the known conditions. The understanding of the oil reservoir by business personnel is also a process of gradual change with the development process. The traditional water injection methods all have extensive management, low water injection efficiency, and ineffective water injection, etc. In particular, ineffective water injection will cause damage to the oil reservoir, thereby aff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/20
CPCE21B43/20
Inventor 肖昌南
Owner BEIJING GRIDSUM TECH CO LTD
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