Method, device and equipment for predicting productivity of dense water-containing gas reservoir

A technology of production capacity forecasting and forecasting methods, applied in forecasting, neural learning methods, design optimization/simulation, etc., can solve problems such as difficult to accurately predict production capacity, high experiment cost, large grid scale, etc., and achieve the effect of rapid production capacity prediction

Pending Publication Date: 2021-12-10
CHINA UNIV OF PETROLEUM (BEIJING)
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Problems solved by technology

Therefore, in order to improve the development effect of tight gas, it is necessary to solve the problem that the production capacity of tight gas is difficult to predict accurately after fracturing
[0003] At present, the methods for predicting productivity after fracturing of tight gas mainly

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  • Method, device and equipment for predicting productivity of dense water-containing gas reservoir
  • Method, device and equipment for predicting productivity of dense water-containing gas reservoir
  • Method, device and equipment for predicting productivity of dense water-containing gas reservoir

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[0045] In order to better understand the technical solution in the present specification, it will be described in conjunction with the drawings in the present specification, and will be described in conjunction with the drawings in the present specification. The embodiment is merely a part of the embodiments of the present specification, not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative labor should belong to the scope of this specification.

[0046] In a scenario example provided in the present specification, the densely contained water-hierarchy product prediction method can be applied to the device that is dedicated to a hydrogens, and the device can include a server, or a server cluster consisting of a plurality of servers.

[0047] In this specification, the dense water-containing production capacity prediction method provides a method of using an intelligent learni...

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Abstract

The embodiment of the invention discloses a dense water-containing gas reservoir productivity prediction method, device and equipment, and the method comprises the steps: collecting geological attribute data and fracturing attribute data of a dense water-containing gas reservoir, comprehensively considering factors affecting the productivity of the dense water-containing gas reservoir, and determining evaluation indexes affecting the productivity of the dense water-containing gas reservoir; and is analyzing and determining the correlation degree between each evaluation index and the productivity by using the grey correlation main control factor weight, and then determining the influence weight value of each evaluation index on the productivity. And a productivity prediction model is trained based on the collected sample data and the calculated correlation degree, a machine learning model of the dense water-containing gas reservoir is constructed, and the productivity of the dense water-containing gas reservoir is predicted by using the constructed machine learning model, thereby realizing accurate, comprehensive and rapid productivity prediction of the dense water-containing gas reservoir.

Description

technical field [0001] This specification belongs to the technical field of oil and gas production, and in particular relates to a method, device and equipment for predicting the production capacity of tight water-bearing gas reservoirs. Background technique [0002] Tight gas refers to natural gas with reservoir porosity less than 10%, permeability less than 0.1mD, gas saturation less than 60%, and water saturation greater than 40%. Due to the characteristics of water saturation, hydraulic fracturing is often used for industrial development. With the continuous deepening of oil and gas exploration and development, tight gas has shown great potential under the existing economic and technological conditions, and global natural gas resources have ushered in a second expansion. Tight gas is characterized by high water saturation, and is often developed by hydraulic fracturing. Accurate prediction of production capacity after fracturing is an important and difficult problem for...

Claims

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Application Information

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IPC IPC(8): G06F30/27G06N3/04G06N3/08G06Q10/04G06Q10/06G06Q50/02
CPCG06F30/27G06N3/04G06N3/084G06N3/086G06Q10/04G06Q10/06393G06Q50/02
Inventor 田冷柴晓龙张金水顾岱鸿王嘉新蒋丽丽王恒力王泽川
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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