Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs

When drilling or exploiting fractured formations, gas fluid displacement and invasion often occur, and gas invasion is very subtle and difficult to find. The gas in the fracture enters the wellbore and arrives near the wellhead with the drilling fluid. Improper treatment may lead to serious accident...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Processes 2022-12, Vol.10 (12), p.2533
Hauptverfasser: Ye, Cheng, Gong, Jiaqin, Liu, Kecheng, Pei, Jingjing, Xu, Shengjiang, Xu, Peng
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue 12
container_start_page 2533
container_title Processes
container_volume 10
creator Ye, Cheng
Gong, Jiaqin
Liu, Kecheng
Pei, Jingjing
Xu, Shengjiang
Xu, Peng
description When drilling or exploiting fractured formations, gas fluid displacement and invasion often occur, and gas invasion is very subtle and difficult to find. The gas in the fracture enters the wellbore and arrives near the wellhead with the drilling fluid. Improper treatment may lead to serious accidents such as lost circulation and blowout. In this study, using computational fluid dynamics (CFD) simulation software for modeling and grid generation, based on the volume of fluid (VOF) method, the gas invasion behavior under different conditions was simulated to explore the flow process and characteristics of gas invasion, and the effects of different drilling fluid properties and fracture morphology on gas invasion were analyzed. The experimental results show that the drilling fluid enters the fracture to compress the gas, making the pressure in the fracture greater than that in the wellbore, thus leading to the occurrence of gas invasion. The viscosity and density of the drilling fluid have different effects on the gas invasion process. The higher the viscosity, the smaller the possibility of gas invasion. However, when the viscosity of the drilling fluid gradually increases from 10–50 MPa·s, the change of gas invasion rate is small, all within 1.0–1.2 m/s. The higher the density, the more conducive to the occurrence of gas invasion. The inlet pressure has no obvious effect on the occurrence of gas invasion, and the occurrence time of the gas invasion fluctuates in 0.35 s at 0.5–2.5 MPa. With the increase in the fracture width and length, the possibility of gas invasion decreases, but there is an extreme value for the fracture height. The time of gas invasion does not change beyond this extreme value. When the fracture height is 100–700 mm, the time of gas invasion increases with the increase in the height; when the height is 700–900 mm, the gas invasion time does not change. These results provide a practical and effective method for enhancing oil recovery, preventing and treating gas invasion in gas–liquid flooding.
doi_str_mv 10.3390/pr10122533
format Article
fullrecord <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_journals_2756779013</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A744994517</galeid><sourcerecordid>A744994517</sourcerecordid><originalsourceid>FETCH-LOGICAL-c334t-4fb620b6b0af701769dde7b95e5bc6c8a95a6947f38e4318f64583884654df53</originalsourceid><addsrcrecordid>eNpNUM1KAzEQDqJgqb34BAFvwtb8Z3Os1dZCQbC9L9ndRFPazTbZLfTmO_iGPokpFXTmMH_fNzN8ANxiNKZUoYc2YIQJ4ZRegAEhRGZKYnn5L78Goxg3KJnCNOdiAFarrq-P0DdwriNcNAcdXSoezYc-OB-gt6fB9-fX0u17V8MnF9utrszONB10DZwFXXV9MDV8M9GEg3ch3oArq7fRjH7jEKxnz-vpS7Z8nS-mk2VWUcq6jNlSEFSKEmkrEZZC1bWRpeKGl5Wocq24FopJS3PDKM6tYDynec4EZ7XldAjuzmvb4Pe9iV2x8X1o0sWCSC6kVAjThBqfUe96awrXWN-ll5PXZucq3xjrUn8iGVOKcSwT4f5MqIKPMRhbtMHtdDgWGBUnnYs_nekPJQhvVQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2756779013</pqid></control><display><type>article</type><title>Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs</title><source>MDPI - Multidisciplinary Digital Publishing Institute</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><creator>Ye, Cheng ; Gong, Jiaqin ; Liu, Kecheng ; Pei, Jingjing ; Xu, Shengjiang ; Xu, Peng</creator><creatorcontrib>Ye, Cheng ; Gong, Jiaqin ; Liu, Kecheng ; Pei, Jingjing ; Xu, Shengjiang ; Xu, Peng</creatorcontrib><description>When drilling or exploiting fractured formations, gas fluid displacement and invasion often occur, and gas invasion is very subtle and difficult to find. The gas in the fracture enters the wellbore and arrives near the wellhead with the drilling fluid. Improper treatment may lead to serious accidents such as lost circulation and blowout. In this study, using computational fluid dynamics (CFD) simulation software for modeling and grid generation, based on the volume of fluid (VOF) method, the gas invasion behavior under different conditions was simulated to explore the flow process and characteristics of gas invasion, and the effects of different drilling fluid properties and fracture morphology on gas invasion were analyzed. The experimental results show that the drilling fluid enters the fracture to compress the gas, making the pressure in the fracture greater than that in the wellbore, thus leading to the occurrence of gas invasion. The viscosity and density of the drilling fluid have different effects on the gas invasion process. The higher the viscosity, the smaller the possibility of gas invasion. However, when the viscosity of the drilling fluid gradually increases from 10–50 MPa·s, the change of gas invasion rate is small, all within 1.0–1.2 m/s. The higher the density, the more conducive to the occurrence of gas invasion. The inlet pressure has no obvious effect on the occurrence of gas invasion, and the occurrence time of the gas invasion fluctuates in 0.35 s at 0.5–2.5 MPa. With the increase in the fracture width and length, the possibility of gas invasion decreases, but there is an extreme value for the fracture height. The time of gas invasion does not change beyond this extreme value. When the fracture height is 100–700 mm, the time of gas invasion increases with the increase in the height; when the height is 700–900 mm, the gas invasion time does not change. These results provide a practical and effective method for enhancing oil recovery, preventing and treating gas invasion in gas–liquid flooding.</description><identifier>ISSN: 2227-9717</identifier><identifier>EISSN: 2227-9717</identifier><identifier>DOI: 10.3390/pr10122533</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Analysis ; Computational fluid dynamics ; Computer applications ; Density ; Drilling ; Drilling and boring ; Drilling fluids ; Extreme values ; Fractured reservoirs ; Fractures ; Grid generation (mathematics) ; Height ; Inlet pressure ; Mathematical models ; Oil recovery ; Petroleum mining ; Pressure effects ; Simulation ; Viscosity</subject><ispartof>Processes, 2022-12, Vol.10 (12), p.2533</ispartof><rights>COPYRIGHT 2022 MDPI AG</rights><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-4fb620b6b0af701769dde7b95e5bc6c8a95a6947f38e4318f64583884654df53</citedby><cites>FETCH-LOGICAL-c334t-4fb620b6b0af701769dde7b95e5bc6c8a95a6947f38e4318f64583884654df53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Ye, Cheng</creatorcontrib><creatorcontrib>Gong, Jiaqin</creatorcontrib><creatorcontrib>Liu, Kecheng</creatorcontrib><creatorcontrib>Pei, Jingjing</creatorcontrib><creatorcontrib>Xu, Shengjiang</creatorcontrib><creatorcontrib>Xu, Peng</creatorcontrib><title>Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs</title><title>Processes</title><description>When drilling or exploiting fractured formations, gas fluid displacement and invasion often occur, and gas invasion is very subtle and difficult to find. The gas in the fracture enters the wellbore and arrives near the wellhead with the drilling fluid. Improper treatment may lead to serious accidents such as lost circulation and blowout. In this study, using computational fluid dynamics (CFD) simulation software for modeling and grid generation, based on the volume of fluid (VOF) method, the gas invasion behavior under different conditions was simulated to explore the flow process and characteristics of gas invasion, and the effects of different drilling fluid properties and fracture morphology on gas invasion were analyzed. The experimental results show that the drilling fluid enters the fracture to compress the gas, making the pressure in the fracture greater than that in the wellbore, thus leading to the occurrence of gas invasion. The viscosity and density of the drilling fluid have different effects on the gas invasion process. The higher the viscosity, the smaller the possibility of gas invasion. However, when the viscosity of the drilling fluid gradually increases from 10–50 MPa·s, the change of gas invasion rate is small, all within 1.0–1.2 m/s. The higher the density, the more conducive to the occurrence of gas invasion. The inlet pressure has no obvious effect on the occurrence of gas invasion, and the occurrence time of the gas invasion fluctuates in 0.35 s at 0.5–2.5 MPa. With the increase in the fracture width and length, the possibility of gas invasion decreases, but there is an extreme value for the fracture height. The time of gas invasion does not change beyond this extreme value. When the fracture height is 100–700 mm, the time of gas invasion increases with the increase in the height; when the height is 700–900 mm, the gas invasion time does not change. These results provide a practical and effective method for enhancing oil recovery, preventing and treating gas invasion in gas–liquid flooding.</description><subject>Analysis</subject><subject>Computational fluid dynamics</subject><subject>Computer applications</subject><subject>Density</subject><subject>Drilling</subject><subject>Drilling and boring</subject><subject>Drilling fluids</subject><subject>Extreme values</subject><subject>Fractured reservoirs</subject><subject>Fractures</subject><subject>Grid generation (mathematics)</subject><subject>Height</subject><subject>Inlet pressure</subject><subject>Mathematical models</subject><subject>Oil recovery</subject><subject>Petroleum mining</subject><subject>Pressure effects</subject><subject>Simulation</subject><subject>Viscosity</subject><issn>2227-9717</issn><issn>2227-9717</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNpNUM1KAzEQDqJgqb34BAFvwtb8Z3Os1dZCQbC9L9ndRFPazTbZLfTmO_iGPokpFXTmMH_fNzN8ANxiNKZUoYc2YIQJ4ZRegAEhRGZKYnn5L78Goxg3KJnCNOdiAFarrq-P0DdwriNcNAcdXSoezYc-OB-gt6fB9-fX0u17V8MnF9utrszONB10DZwFXXV9MDV8M9GEg3ch3oArq7fRjH7jEKxnz-vpS7Z8nS-mk2VWUcq6jNlSEFSKEmkrEZZC1bWRpeKGl5Wocq24FopJS3PDKM6tYDynec4EZ7XldAjuzmvb4Pe9iV2x8X1o0sWCSC6kVAjThBqfUe96awrXWN-ll5PXZucq3xjrUn8iGVOKcSwT4f5MqIKPMRhbtMHtdDgWGBUnnYs_nekPJQhvVQ</recordid><startdate>20221201</startdate><enddate>20221201</enddate><creator>Ye, Cheng</creator><creator>Gong, Jiaqin</creator><creator>Liu, Kecheng</creator><creator>Pei, Jingjing</creator><creator>Xu, Shengjiang</creator><creator>Xu, Peng</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>LK8</scope><scope>M7P</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20221201</creationdate><title>Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs</title><author>Ye, Cheng ; Gong, Jiaqin ; Liu, Kecheng ; Pei, Jingjing ; Xu, Shengjiang ; Xu, Peng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-4fb620b6b0af701769dde7b95e5bc6c8a95a6947f38e4318f64583884654df53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Analysis</topic><topic>Computational fluid dynamics</topic><topic>Computer applications</topic><topic>Density</topic><topic>Drilling</topic><topic>Drilling and boring</topic><topic>Drilling fluids</topic><topic>Extreme values</topic><topic>Fractured reservoirs</topic><topic>Fractures</topic><topic>Grid generation (mathematics)</topic><topic>Height</topic><topic>Inlet pressure</topic><topic>Mathematical models</topic><topic>Oil recovery</topic><topic>Petroleum mining</topic><topic>Pressure effects</topic><topic>Simulation</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ye, Cheng</creatorcontrib><creatorcontrib>Gong, Jiaqin</creatorcontrib><creatorcontrib>Liu, Kecheng</creatorcontrib><creatorcontrib>Pei, Jingjing</creatorcontrib><creatorcontrib>Xu, Shengjiang</creatorcontrib><creatorcontrib>Xu, Peng</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>ProQuest Biological Science Collection</collection><collection>Biological Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Processes</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ye, Cheng</au><au>Gong, Jiaqin</au><au>Liu, Kecheng</au><au>Pei, Jingjing</au><au>Xu, Shengjiang</au><au>Xu, Peng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs</atitle><jtitle>Processes</jtitle><date>2022-12-01</date><risdate>2022</risdate><volume>10</volume><issue>12</issue><spage>2533</spage><pages>2533-</pages><issn>2227-9717</issn><eissn>2227-9717</eissn><abstract>When drilling or exploiting fractured formations, gas fluid displacement and invasion often occur, and gas invasion is very subtle and difficult to find. The gas in the fracture enters the wellbore and arrives near the wellhead with the drilling fluid. Improper treatment may lead to serious accidents such as lost circulation and blowout. In this study, using computational fluid dynamics (CFD) simulation software for modeling and grid generation, based on the volume of fluid (VOF) method, the gas invasion behavior under different conditions was simulated to explore the flow process and characteristics of gas invasion, and the effects of different drilling fluid properties and fracture morphology on gas invasion were analyzed. The experimental results show that the drilling fluid enters the fracture to compress the gas, making the pressure in the fracture greater than that in the wellbore, thus leading to the occurrence of gas invasion. The viscosity and density of the drilling fluid have different effects on the gas invasion process. The higher the viscosity, the smaller the possibility of gas invasion. However, when the viscosity of the drilling fluid gradually increases from 10–50 MPa·s, the change of gas invasion rate is small, all within 1.0–1.2 m/s. The higher the density, the more conducive to the occurrence of gas invasion. The inlet pressure has no obvious effect on the occurrence of gas invasion, and the occurrence time of the gas invasion fluctuates in 0.35 s at 0.5–2.5 MPa. With the increase in the fracture width and length, the possibility of gas invasion decreases, but there is an extreme value for the fracture height. The time of gas invasion does not change beyond this extreme value. When the fracture height is 100–700 mm, the time of gas invasion increases with the increase in the height; when the height is 700–900 mm, the gas invasion time does not change. These results provide a practical and effective method for enhancing oil recovery, preventing and treating gas invasion in gas–liquid flooding.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/pr10122533</doi><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 2227-9717
ispartof Processes, 2022-12, Vol.10 (12), p.2533
issn 2227-9717
2227-9717
language eng
recordid cdi_proquest_journals_2756779013
source MDPI - Multidisciplinary Digital Publishing Institute; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Analysis
Computational fluid dynamics
Computer applications
Density
Drilling
Drilling and boring
Drilling fluids
Extreme values
Fractured reservoirs
Fractures
Grid generation (mathematics)
Height
Inlet pressure
Mathematical models
Oil recovery
Petroleum mining
Pressure effects
Simulation
Viscosity
title Study on Gas Invasion Behavior of Gas–Liquid Displacement in Fractured Reservoirs
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-13T04%3A28%3A39IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Study%20on%20Gas%20Invasion%20Behavior%20of%20Gas%E2%80%93Liquid%20Displacement%20in%20Fractured%20Reservoirs&rft.jtitle=Processes&rft.au=Ye,%20Cheng&rft.date=2022-12-01&rft.volume=10&rft.issue=12&rft.spage=2533&rft.pages=2533-&rft.issn=2227-9717&rft.eissn=2227-9717&rft_id=info:doi/10.3390/pr10122533&rft_dat=%3Cgale_proqu%3EA744994517%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2756779013&rft_id=info:pmid/&rft_galeid=A744994517&rfr_iscdi=true