Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs

Located in the Sichuan Basin of China, the central Sichuan paleo-uplift is a geological structure that spanned several areas in Sichuan province and was formed 500 million years ago. It is the bottom layer with rich conventional natural gas resources of more than 3×1012 m3, and the proven reserves a...

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Main Authors: Haitao Li, Guo Yu, Chun Li, Zhenglong Xie, Chenxi Liu, Dongming Zhang, Chongyang Wang
Format: Article
Language:English
Published: Wiley 2023-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2023/4858118
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author Haitao Li
Guo Yu
Chun Li
Zhenglong Xie
Chenxi Liu
Dongming Zhang
Chongyang Wang
author_facet Haitao Li
Guo Yu
Chun Li
Zhenglong Xie
Chenxi Liu
Dongming Zhang
Chongyang Wang
author_sort Haitao Li
collection DOAJ
description Located in the Sichuan Basin of China, the central Sichuan paleo-uplift is a geological structure that spanned several areas in Sichuan province and was formed 500 million years ago. It is the bottom layer with rich conventional natural gas resources of more than 3×1012 m3, and the proven reserves are about 30%, while the recovery rate is only 1.4%. In this paper, the Hubbert and Gauss models are used to study the peak production of natural gas. The Monte Carlo simulation method is used to predict the realization probability of future medium and long-term production, evaluate the risk level of natural gas production, and realize the whole process research from scale prediction to risk quantification of gas reservoirs. According to the Gauss model, under the realization probability of P50, the gas reservoir in the central Sichuan paleo-uplift can reach a peak production value of 145×108m3/a, in 2040, and maintain a stable production state in 2034-2046. The risk grade evaluation matrix, through which the dispersion degree C ∈ (5% and 10%) in the rising stage and rapid production decline stage can be obtained, and the dispersion degree C ∈ (10% and 25%) in the stable production stage and slow production decline stage can be obtained. The dispersion degree and realization probability can be integrated to obtain the risk level at different stages.
format Article
id doaj-art-3a80eac7d8c843a5be818aaa22b41b2b
institution Kabale University
issn 1468-8123
language English
publishDate 2023-01-01
publisher Wiley
record_format Article
series Geofluids
spelling doaj-art-3a80eac7d8c843a5be818aaa22b41b2b2025-08-20T03:55:40ZengWileyGeofluids1468-81232023-01-01202310.1155/2023/4858118Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas ReservoirsHaitao Li0Guo Yu1Chun Li2Zhenglong Xie3Chenxi Liu4Dongming Zhang5Chongyang Wang6Exploration and Development Research Institute of PetroChina Southwest Oil and Gas Field CompanyPetroChina Southwest Oil and Gas Field Company Planning DepartmentSinopec Xinan Oilfield Service Corporation First Drilling BranchExploration and Development Research Institute of PetroChina Southwest Oil and Gas Field CompanyCollege of Resources and SecurityCollege of Resources and SecurityCollege of Resources and SecurityLocated in the Sichuan Basin of China, the central Sichuan paleo-uplift is a geological structure that spanned several areas in Sichuan province and was formed 500 million years ago. It is the bottom layer with rich conventional natural gas resources of more than 3×1012 m3, and the proven reserves are about 30%, while the recovery rate is only 1.4%. In this paper, the Hubbert and Gauss models are used to study the peak production of natural gas. The Monte Carlo simulation method is used to predict the realization probability of future medium and long-term production, evaluate the risk level of natural gas production, and realize the whole process research from scale prediction to risk quantification of gas reservoirs. According to the Gauss model, under the realization probability of P50, the gas reservoir in the central Sichuan paleo-uplift can reach a peak production value of 145×108m3/a, in 2040, and maintain a stable production state in 2034-2046. The risk grade evaluation matrix, through which the dispersion degree C ∈ (5% and 10%) in the rising stage and rapid production decline stage can be obtained, and the dispersion degree C ∈ (10% and 25%) in the stable production stage and slow production decline stage can be obtained. The dispersion degree and realization probability can be integrated to obtain the risk level at different stages.http://dx.doi.org/10.1155/2023/4858118
spellingShingle Haitao Li
Guo Yu
Chun Li
Zhenglong Xie
Chenxi Liu
Dongming Zhang
Chongyang Wang
Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
Geofluids
title Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
title_full Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
title_fullStr Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
title_full_unstemmed Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
title_short Prediction Model and Risk Quantification of Natural Gas Peak Production in Central Sichuan Paleo-Uplift Gas Reservoirs
title_sort prediction model and risk quantification of natural gas peak production in central sichuan paleo uplift gas reservoirs
url http://dx.doi.org/10.1155/2023/4858118
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