A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling

The deep and ultra-deep oil and gas resources often have the characteristics of high temperature and high pressure, with complex pressure systems and narrow safety density windows, so risks such as gas invasion and overflow are easy to occur during the drilling. In response to the problems of low ma...

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Main Authors: Yuqiang Zhang, Xuezhe Yao, Wenping Zhang, Zhaopeng Zhu
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/15/13/7256
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author Yuqiang Zhang
Xuezhe Yao
Wenping Zhang
Zhaopeng Zhu
author_facet Yuqiang Zhang
Xuezhe Yao
Wenping Zhang
Zhaopeng Zhu
author_sort Yuqiang Zhang
collection DOAJ
description The deep and ultra-deep oil and gas resources often have the characteristics of high temperature and high pressure, with complex pressure systems and narrow safety density windows, so risks such as gas invasion and overflow are easy to occur during the drilling. In response to the problems of low management efficiency and large gas kick by traditional gas invasion treatment methods, this paper respectively established and compared three intelligent control models for bottom hole pressure (BHP) based on a PID controller, a fuzzy PID controller, and a fuzzy neural network PID controller based on the non-isothermal gas–liquid–solid three-phase transient flow heat transfer model in the annulus. The results show that compared with the PID controller and the fuzzy PID controller, the fuzzy neural network PID controller can adjust the control parameters adaptively and optimize the control rules in real-time; the efficiency of the fuzzy neural network PID controller to deal with a gas kick is improved by 45%, and the gas kick volume in the process of gas kick is reduced by 63.12%. The principal scientific novelty of this study lies in the integration of a fuzzy neural network PID controller with a non-isothermal three-phase flow model, enabling adaptive and robust bottom hole pressure regulation under complex gas invasion conditions, which is of great significance for reducing drilling risks and ensuring safe and efficient drilling.
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spelling doaj-art-5cb8f088e57e40f78f0b7632f6e3aeaa2025-08-20T03:16:46ZengMDPI AGApplied Sciences2076-34172025-06-011513725610.3390/app15137256A Novel Adaptive Transient Model of Gas Invasion Risk Management While DrillingYuqiang Zhang0Xuezhe Yao1Wenping Zhang2Zhaopeng Zhu3Engineering Technology Management Department, Jianghan Oilfield Company, Qianjiang 433124, ChinaCollege of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaDrilling Engineering Technology Research Center, Sinopec Petroleum Engineering Technology Research Institute Co., Ltd., Beijing 102206, ChinaCollege of Mechanical and Transportation Engineering, China University of Petroleum (Beijing), Beijing 102249, ChinaThe deep and ultra-deep oil and gas resources often have the characteristics of high temperature and high pressure, with complex pressure systems and narrow safety density windows, so risks such as gas invasion and overflow are easy to occur during the drilling. In response to the problems of low management efficiency and large gas kick by traditional gas invasion treatment methods, this paper respectively established and compared three intelligent control models for bottom hole pressure (BHP) based on a PID controller, a fuzzy PID controller, and a fuzzy neural network PID controller based on the non-isothermal gas–liquid–solid three-phase transient flow heat transfer model in the annulus. The results show that compared with the PID controller and the fuzzy PID controller, the fuzzy neural network PID controller can adjust the control parameters adaptively and optimize the control rules in real-time; the efficiency of the fuzzy neural network PID controller to deal with a gas kick is improved by 45%, and the gas kick volume in the process of gas kick is reduced by 63.12%. The principal scientific novelty of this study lies in the integration of a fuzzy neural network PID controller with a non-isothermal three-phase flow model, enabling adaptive and robust bottom hole pressure regulation under complex gas invasion conditions, which is of great significance for reducing drilling risks and ensuring safe and efficient drilling.https://www.mdpi.com/2076-3417/15/13/7256gas kickfuzzy neural networkPID controlbottom hole pressureintelligent control
spellingShingle Yuqiang Zhang
Xuezhe Yao
Wenping Zhang
Zhaopeng Zhu
A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
Applied Sciences
gas kick
fuzzy neural network
PID control
bottom hole pressure
intelligent control
title A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
title_full A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
title_fullStr A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
title_full_unstemmed A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
title_short A Novel Adaptive Transient Model of Gas Invasion Risk Management While Drilling
title_sort novel adaptive transient model of gas invasion risk management while drilling
topic gas kick
fuzzy neural network
PID control
bottom hole pressure
intelligent control
url https://www.mdpi.com/2076-3417/15/13/7256
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