Uncertainty prediction of conventional gas production in Sichuan Basin under multi factor control

被引:0
作者
Li, Haitao [1 ]
Yu, Guo [2 ]
Fang, Yizhu [1 ]
Chen, Yanru [1 ]
Sun, Kaijun [3 ]
Liu, Yang [1 ]
Chen, Yu [4 ]
Zhang, Dongming [4 ]
机构
[1] PetroChina Southwest Oil & Gas Field Co, Explorat & Dev Res Inst, Chengdu, Peoples R China
[2] PetroChina Southwest Oil & Gas Field Co, Planning Dept, Chengdu, Sichuan, Peoples R China
[3] Chongqing Gas Mine, Southwest Oil & Gas Field Branch, Chongqing, Peoples R China
[4] Chongqing Univ, Coll Resources & Secur, Chongqing, Peoples R China
关键词
Bayesian network; multivariate Gaussian mixture model; analysis of influencing factors; sensitivity analysis; production probability calculation; production planning model; DEMAND; MODEL;
D O I
10.3389/feart.2024.1454449
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
The establishment of a natural gas production model under multi factor control provides support for the formulation of planning schemes and exploration deployment decisions, and is of great significance for the rapid development of natural gas. Especially the growth rate and decline rate of production can be regulated in the planning process to increase natural gas production. The exploration and development of conventional gas in the Sichuan Basin has a long history. Firstly, based on the development of conventional gas production, the influencing factors of production are determined and a production model under multi factor control is established. Then, single factor analysis and sensitivity analysis are conducted, and multi factor analysis is conducted based on Bayesian networks. Finally, combining the multivariate Gaussian mixture model and production sensitivity analysis, a production planning model is established to predict production uncertainty under the influence of multiple factors. The results show that: 1) the production is positively correlated with the five influencing factors, and the degree of influence is in descending order: recovery rate, proven rate, growth rate, decline rate, and recovery degree. After being influenced by multiple factors, the fluctuation range of production increases and the probability of realization decreases. 2) The growth rate controls the amplitude of the growth stage, the exploration rate and recovery rate control the amplitude of the stable production stage, the recovery degree controls the amplitude of the transition from the stable production stage to the decreasing stage, and the decreasing rate controls the amplitude of the decreasing stage. 3)The article innovatively combines multiple research methods to further obtain the probability of achieving production under the influence of multiple factors, providing a reference for the formulation of production planning goals.
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页数:16
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