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Reservoir well pattern construction scheme generation method and system

A technology for generating systems and well patterns, applied in the computer field, can solve problems such as the inability to effectively develop oil, shutting down wells, and rising

Inactive Publication Date: 2019-11-22
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the development progresses, crude oil is continuously produced, the formation pressure inside the reservoir drops, and a pressure difference occurs between the bottom water and the reservoir. Driven by the pressure difference, reservoir water invasion occurs, making all The water content of the produced crude oil continues to rise, which in turn affects the production of the oil well, making the oil well face shutting down. In this case, continuing to use the original production vertical well will make the remaining oil in the reservoir unable to be effectively developed.

Method used

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  • Reservoir well pattern construction scheme generation method and system
  • Reservoir well pattern construction scheme generation method and system
  • Reservoir well pattern construction scheme generation method and system

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Embodiment 1

[0026] figure 1 Be the concrete flowchart of embodiment, figure 1 The steps and process of generating the well pattern reconstruction scheme are specifically described in , specifically, as follows.

[0027] S101. Determine the number of well pattern units based on the block area information of the reservoir and the reserves of the reservoir.

[0028] Wherein, the well pattern unit includes a production well and at least one water injection well matched with the production well. In this embodiment, each production well is matched with four water injection wells.

[0029] Among them, the present invention is aimed at oil reservoirs, which refer to oil fields with low reservoir permeability, low abundance and low single well productivity. For the above-mentioned oil fields, it is necessary to reconstruct the initial well pattern unit including vertical production wells.

[0030] Wherein, the block area information may include the area value of the entire oil reservoir, which...

Embodiment 2

[0050] figure 2 It is a block diagram of the connection structure in Embodiment 2. Specifically, the generation system of the reservoir well pattern construction plan includes the following multiple structures.

[0051] The present invention also provides a generation system of a reservoir well pattern construction plan, the generation system of the reservoir well pattern construction plan includes: a quantity determination unit 1, which is used to base on the block area information of the oil reservoir and the reserves of the oil reservoir, The number of well pattern units is determined, wherein the well pattern units include production wells and at least one water injection well matched with the production wells. The position determination unit 2 determines the construction position of the production well and the water injection well matched with the production well according to the number of the well pattern units, including: if the number of the well pattern units is one,...

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Abstract

The invention provides a reservoir well pattern construction scheme generation method and system, and belongs to the technical field of computers. The reservoir well pattern construction scheme generation method comprises the following steps: the number of well pattern units is determined based on reservoir block area information and reservoir storage conditions; construction positions of production wells and water injecting wells matched with the production wells are determined according to the number of the well pattern units, comprising: if the number of the well pattern units is one, the construction positions of single production wells, the number of the water injecting wells matched with the single production wells and the construction positions of the water injecting wells are determined; if the number of the well pattern units is multiple, the constructions of each production well, the number of the water injecting wells matched with each production well and the construction positions of the water injecting wells are determined; and construction schemes of the well pattern units are determined based on the number of the well pattern units and the construction positions of the production wells and the water injecting wells matched with the production wells. The well pattern reconstruction schemes are provided for realizing effective development of remaining oil.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and system for generating an oil reservoir well pattern construction scheme. Background technique [0002] Well pattern refers to the distribution of production wells and water injection wells in the process of reservoir development, which is an important link in the reservoir development plan, and the setting of well pattern is related to the development efficiency of the reservoir. [0003] For reservoirs with active bottom water, the bottom water body provides sufficient energy for the reservoir to quickly replenish the formation deficit caused by the exploitation of crude oil. However, as the development progresses, crude oil is continuously produced, the formation pressure inside the reservoir drops, and a pressure difference occurs between the bottom water and the reservoir. Driven by the pressure difference, reservoir water invasion occurs, making all The water...

Claims

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Application Information

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IPC IPC(8): E21B43/30E21B43/20G06F17/50
CPCE21B43/20E21B43/30E21B43/305
Inventor 周莹张家良孟立新王东林李云鹏
Owner PETROCHINA CO LTD
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