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A method and device for determining the development index of tight gas reservoirs

A technology for developing indicators and tight gas, applied in data processing applications, instruments, calculations, etc., can solve the problems of poor stable production capacity of gas wells, large area, and inability to apply conventional gas reservoir development standards

Active Publication Date: 2019-07-09
PETROCHINA CO LTD
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Problems solved by technology

[0003] At the same time, due to the small range of single well drainage, the stable production capacity of gas wells is poor, so the stable production capacity of tight gas fields is quite different from the stable production capacity of single wells.
In addition, due to the large area, large number of wells and high randomness of single well conditions, it is very difficult to accurately predict the indicators of each single well, and it is difficult to accurately simulate the development indicators of the entire gas field using numerical simulation methods
Therefore, due to the essential characteristics of conventional gas reservoirs and tight gas reservoirs, there is a big difference in every link in the design of development indicators. For the development indicators of tight gas reservoirs, the existing development standards for conventional gas reservoirs cannot be applied. , requiring innovative approaches to achieve

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  • A method and device for determining the development index of tight gas reservoirs
  • A method and device for determining the development index of tight gas reservoirs
  • A method and device for determining the development index of tight gas reservoirs

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Embodiment Construction

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0018] figure 1 A flow chart of a method for determining tight gas reservoir development indicators provided in this application. Although the processes described below include multiple operations occurring in a particular order, it should be clearly understood that these processes may include more or fewer oper...

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Abstract

The application provides a method for determining a tight gas reservoir development index and a device thereof. The method comprises the steps that a production region is determined in a region to be developed; the single well average development index of the production region is determined according to the reservoir characteristic parameters and the single well dynamic production state of the production region; the distributed grids of a single well in the production region are determined according to the preset rules; and the tight gas reservoir development index of the production region is determined according to the single well average development index and the distributed grids. According to the method for determining the tight gas reservoir development index and the device thereof, the tight gas reservoir development index can be determined according to the intrinsic characteristics of the tight gas reservoir.

Description

technical field [0001] The present application relates to the technical field of natural gas development, in particular to a method and device for determining tight gas reservoir development indicators. Background technique [0002] Conventional gas reservoirs mainly refer to medium-high permeability gas reservoirs, which have good internal connectivity, obvious gas reservoir trap boundaries, high gas well production, and relatively strong production stability. Tight gas reservoirs (Tight Gas) refer to natural gas reservoirs in sandstone reservoirs with a permeability of less than 0.1 millidarcy (mD), which have a large distribution area, no obvious gas reservoir boundaries, poor reservoir permeability, strong heterogeneity, and effective The sand bodies are scattered, separated by tighter layers or mudstone layers, with poor connectivity, generally low single well production, and large differences in gas well indicators. Even within a single effective sand body or superimp...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/02
CPCG06Q50/02
Inventor 贾爱林何东博位云生冀光
Owner PETROCHINA CO LTD
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