A drilling wellbore pressure calculation model considering the effect of gas dissolution and suspension

Zhang, Wenbo; Xue, Xianbo; Zhang, Chengcheng; Qu, Yue; Ke, Ke; Pan, Shaowei; Li, Zeqin; Zhang, Jianbo

doi:10.3389/feart.2022.993876

Cited by 3 publications

(3 citation statements)

References 27 publications

(24 reference statements)

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“…Aiming at the problem of large errors in productivity prediction (Luo et al, 2015), established a flow relationship model and analyzed the influence of near-well heterogeneity, wellbore flow pressure drops, and completion parameters on the inflow profile of horizontal wells ]. Transformed the threedimensional seepage problem into a two-dimensional seepage problem and deduced the horizontal well productivity formula considering the fluid rheological properties and reservoir heterogeneity [Zhang et al (2022)]. Used simulation software to simulate the multiphase flow pattern and pressure change of the wellbore after gas invasion [Wang et al (202)].…”

Section: Introductionmentioning

confidence: 99%

Advances in geo-resources and geo-energy extraction and exploitation: Theories, technologies, and numerical simulation

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Section: Introductionmentioning

confidence: 99%

Advances in geo-resources and geo-energy extraction and exploitation: Theories, technologies, and numerical simulation

2024

Frontiers Research Topics

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“…In the process of gas test production, the non-Darcy characteristic of high speed is the prominent characteristic of high-pressure gas flow, which is not only manifested in the inertial resistance, but also in the significant gas acceleration effect induced by the rapid expansion of the gas volume (Jin et al, 2011a;Chen et al, 2011;Jin et al, 2012). The characteristic makes the spatio-temporal evolution of gas pressure more complex (Jin et al, 2019;Zhang et al, 2021;Hou et al, 2022a;Zhang et al, 2022). Traditionally, the inertial effect of near-wellbore gas flow is simply expressed by adding the Forchheimer inertial drag to Darcy's Law.…”

Section: Introductionmentioning

confidence: 99%

Analysis of influencing factors on wellbore instability for high-pressure gas well during testing and production

Jiang

Chen²,

Chen³

et al. 2023

Front. Earth Sci.

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Unlike normal-pressure gas wells, wellbore instability is more likely to occur during testing for high-pressure gas wells. Gas acceleration effect exists in gas flow during high-pressure gas well testing, which was ignored in previous wellbore instability analysis. In this paper, the developments of effective circumferential stress and effective radial stress are analyzed in the near-wellbore area of high-pressure gas well, considering the influence of in-situ stress non-uniformity and acceleration effect. To analyze the effective circumferential stress and the effective radial stress more accurately, it is established that the fluid-structure coupling stress field of the finite large thick wall cylinder The flow field considers three cases, namely Darcy’s law, Darcy–Forchheimer model and Darcy-Forchheime model considering gas acceleration. The results show that in-situ stress non-uniformity has a similar influence on tensile failure and shear failure. It is observed that the location of occurring shear failure and tensile failure may not be on the wellbore wall. When the formation fluid is under abnormally high pressure, it is more likely to have a tensile failure, while when the formation fluid is under abnormally low pressure, it is more likely to have a shear failure. The Biot parameter has the same effect on tensile failure and shear failure. These results are helpful to control sand production during testing and production for high-pressure gas wells.

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“…Aiming at the problem of large errors in productivity prediction (Luo et al, 2015), established a flow relationship model and analyzed the influence of near-well heterogeneity, wellbore flow pressure drops, and completion parameters on the inflow profile of horizontal wells [Wang et al (2021)]. Transformed the threedimensional seepage problem into a two-dimensional seepage problem and deduced the horizontal well productivity formula considering the fluid rheological properties and reservoir heterogeneity [Zhang et al (2022)]. Used simulation software to simulate the multiphase flow pattern and pressure change of the wellbore after gas invasion [Wang et al (202)].…”

Section: Introductionmentioning

confidence: 99%

The productivity segmented calculation model of perforated horizontal wells considering whether to penetrate the contaminated zone

Zhang,

Guo,

Yang

et al. 2023

Front. Earth Sci.

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Perforation technology is often used to improve the productivity of horizontal wells in oilfield exploitation. During the perforation process, the formation seepage mode and productivity will change accordingly whether the contaminated zone is shot through. If we continue to use the previous productivity formula, it will cause a large calculation error and bring economic loss to the development of oil and gas fields. Firstly, based on the principle of equivalent seepage resistance, the reservoir-hole inflow profile in these two cases is analyzed in detail, and the reservoir-hole seepage model is constructed in different regions. The perforated horizontal well section is divided into N micro-unit sections, and the pressure drop model in the wellbore is constructed using the fluid mechanics theory. A new perforated horizontal well productivity prediction model is then created by coupling the reservoir-hole seepage model with the pressure drop model in the wellbore as a whole to accurately reflect the production performance of the perforated horizontal well. Through comparison and verification, it is concluded that the calculation results of the model are more precise, which can greatly reduce the productivity error. This method is reasonable and practical. When the oilfield’s actual well data is substituted into this model, it is discussed and analyzed that the reservoir’s physical characteristics, contamination level, and perforation completion parameters all have an impact on the productivity of horizontal wells, with the original formation’s permeability and reservoir contamination thickness having the most pronounced effects. These findings may effectively direct the design of technological processes and performance impact prediction.

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A drilling wellbore pressure calculation model considering the effect of gas dissolution and suspension

Cited by 3 publications

References 27 publications

Advances in geo-resources and geo-energy extraction and exploitation: Theories, technologies, and numerical simulation

Advances in geo-resources and geo-energy extraction and exploitation: Theories, technologies, and numerical simulation

Analysis of influencing factors on wellbore instability for high-pressure gas well during testing and production

The productivity segmented calculation model of perforated horizontal wells considering whether to penetrate the contaminated zone

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