Water invasion gas reservoir dynamic reserve prediction method, device and equipment and storage medium

A technology of dynamic reserves and prediction methods, which is applied in the fields of earthwork drilling, climate change adaptation, data processing applications, etc., and can solve problems such as the inability to realize the quantitative evaluation of the impact of water intrusion on gas reservoir development

Pending Publication Date: 2022-06-03
PETROCHINA CO LTD
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Problems solved by technology

[0004] In view of the above-mentioned problems in the prior art, the purpose of this paper is to provide a dynamic reserve prediction method, device, equipment and storage medium for water-invasion gas reservoirs, so as to solve the problem that the quantification of the impact of water intrusion on gas reservoir development cannot be realized in the prior art. evaluation question

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  • Water invasion gas reservoir dynamic reserve prediction method, device and equipment and storage medium
  • Water invasion gas reservoir dynamic reserve prediction method, device and equipment and storage medium
  • Water invasion gas reservoir dynamic reserve prediction method, device and equipment and storage medium

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Embodiment Construction

[0062] The technical solutions in the embodiments herein will be clearly and completely described below with reference to the accompanying drawings in the embodiments herein. Obviously, the described embodiments are only a part of the embodiments herein, rather than all the embodiments. Based on the embodiments herein, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection herein.

[0063]It should be noted that the terms "first", "second" and the like in the description and claims herein and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments herein described can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", and any vari...

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Abstract

The invention provides a water invasion gas reservoir dynamic reserve prediction method, device and equipment and a storage medium, and the method comprises the steps: obtaining collection data of a gas reservoir development unit, the collection data comprising daily production data, well shut-in static pressure at different time points and accumulated collection gas amount; according to the collected data, determining first gas reservoir dynamic reserves in different time periods by adopting a static material balance method; according to the daily production data, a flowing substance balance method is adopted to determine the dynamic reserve of a second gas reservoir; according to the first gas reservoir dynamic reserves, the second gas reservoir dynamic reserves and the accumulatively collected gas volumes in the different time periods, determining the relationship between the accumulatively collected gas volumes and the gas reservoir dynamic reserves at the different time points; according to the relation between the accumulatively collected gas quantity and the dynamic reserves of the gas reservoir, fitting a relation function between the accumulatively collected gas quantity and the dynamic reserves; the dynamic reserves are predicted according to the relation function of the accumulated collected gas quantity and the dynamic reserves, and the dynamic reserves of the gas reservoir can be accurately and rapidly predicted.

Description

technical field [0001] The invention relates to the technical field of gas reservoir development, in particular to a method, device, equipment and storage medium for predicting the dynamic reserves of a water-invaded gas reservoir. Background technique [0002] Most of the developed gas reservoirs in my country are affected by water invasion, among which the gas reservoirs with more active edge and bottom water account for 40%-50%. After water intrusion of gas reservoirs, macroscopic water locking phenomenon and microscopic water sealing gas effect will occur, resulting in the loss of productivity and dynamic reserves of gas reservoirs / gas wells, thus affecting the recovery rate and final development effect of gas reservoirs. [0003] At present, domestic and foreign scholars have conducted many researches on the mechanism of water influx, identification methods of water influx, and calculation of water influx in gas reservoirs. When researchers use the principle of materia...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00G06Q50/02
CPCE21B49/00G06Q50/02Y02A10/40
Inventor 罗瑞兰李熙喆刘晓华俞霁晨张林万玉金陈鹏郭振华
Owner PETROCHINA CO LTD
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