Promoting Gas Extraction Technology with Screen Pipe for Long Borehole Protection in Soft Seam
The inherent properties of soft coal seams and their mechanical environment make long boreholes susceptible to issues like collapse, deformation, and blockages. These problems shorten the service life of the boreholes and hinder extraction efficiency. This paper tackles these challenges by analyzing...
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| Veröffentlicht in: | Processes 2024-09, Vol.12 (9), p.1996 |
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| container_title | Processes |
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| creator | Wang, Lin Wang, Dezhang Chen, Xiangjun Min, Rui |
| description | The inherent properties of soft coal seams and their mechanical environment make long boreholes susceptible to issues like collapse, deformation, and blockages. These problems shorten the service life of the boreholes and hinder extraction efficiency. This paper tackles these challenges by analyzing the deformation and damage patterns of long boreholes in soft coal seams. It examines the stress distribution and deformation characteristics around both protected and unprotected boreholes at different burial depths. Additionally, it recommends using screen pipe protection technology to improve gas extraction and mining operations, as demonstrated in Changping Coal Mine. The results show that screen pipe protection substantially improves the stress distribution and deformation stability of coal seam boreholes. The flow attenuation coefficients of two boreholes equipped with protection technology decreased by 48% and 61%. After 50 days of extraction from boreholes with a protection rate exceeding 90%, gas concentration remained above 50%, which is 2.59 times higher than that of unprotected boreholes. This technology effectively addresses the frequent accidents, poor extraction performance, and inefficiency of long boreholes in soft coal seams, ensuring the mine’s safe and efficient production. |
| doi_str_mv | 10.3390/pr12091996 |
| format | Article |
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These problems shorten the service life of the boreholes and hinder extraction efficiency. This paper tackles these challenges by analyzing the deformation and damage patterns of long boreholes in soft coal seams. It examines the stress distribution and deformation characteristics around both protected and unprotected boreholes at different burial depths. Additionally, it recommends using screen pipe protection technology to improve gas extraction and mining operations, as demonstrated in Changping Coal Mine. The results show that screen pipe protection substantially improves the stress distribution and deformation stability of coal seam boreholes. The flow attenuation coefficients of two boreholes equipped with protection technology decreased by 48% and 61%. After 50 days of extraction from boreholes with a protection rate exceeding 90%, gas concentration remained above 50%, which is 2.59 times higher than that of unprotected boreholes. This technology effectively addresses the frequent accidents, poor extraction performance, and inefficiency of long boreholes in soft coal seams, ensuring the mine’s safe and efficient production.</description><identifier>ISSN: 2227-9717</identifier><identifier>EISSN: 2227-9717</identifier><identifier>DOI: 10.3390/pr12091996</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Analysis ; Attenuation coefficients ; Bituminous coal ; Boreholes ; Coal ; Coal industry ; Coal mines ; Coal mining ; Coalbed methane ; Damage patterns ; Deformation ; Deformation analysis ; Deformation effects ; Drilling ; Electrons ; Energy resources ; Equilibrium ; Flow stability ; Friction ; Mines and mineral resources ; Natural gas ; Pipes ; Service life ; Shear strength ; Shear stress ; Simulation ; Stress concentration ; Stress distribution ; Stress state ; Technology application</subject><ispartof>Processes, 2024-09, Vol.12 (9), p.1996</ispartof><rights>COPYRIGHT 2024 MDPI AG</rights><rights>2024 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><cites>FETCH-LOGICAL-c223t-b8af58661ddc9d7e874b6b40b316fe69305e76b56bfd7a3f1346d02ccf2f3aaa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Wang, Dezhang</creatorcontrib><creatorcontrib>Chen, Xiangjun</creatorcontrib><creatorcontrib>Min, Rui</creatorcontrib><title>Promoting Gas Extraction Technology with Screen Pipe for Long Borehole Protection in Soft Seam</title><title>Processes</title><description>The inherent properties of soft coal seams and their mechanical environment make long boreholes susceptible to issues like collapse, deformation, and blockages. These problems shorten the service life of the boreholes and hinder extraction efficiency. This paper tackles these challenges by analyzing the deformation and damage patterns of long boreholes in soft coal seams. It examines the stress distribution and deformation characteristics around both protected and unprotected boreholes at different burial depths. Additionally, it recommends using screen pipe protection technology to improve gas extraction and mining operations, as demonstrated in Changping Coal Mine. The results show that screen pipe protection substantially improves the stress distribution and deformation stability of coal seam boreholes. The flow attenuation coefficients of two boreholes equipped with protection technology decreased by 48% and 61%. After 50 days of extraction from boreholes with a protection rate exceeding 90%, gas concentration remained above 50%, which is 2.59 times higher than that of unprotected boreholes. This technology effectively addresses the frequent accidents, poor extraction performance, and inefficiency of long boreholes in soft coal seams, ensuring the mine’s safe and efficient production.</description><subject>Analysis</subject><subject>Attenuation coefficients</subject><subject>Bituminous coal</subject><subject>Boreholes</subject><subject>Coal</subject><subject>Coal industry</subject><subject>Coal mines</subject><subject>Coal mining</subject><subject>Coalbed methane</subject><subject>Damage patterns</subject><subject>Deformation</subject><subject>Deformation analysis</subject><subject>Deformation effects</subject><subject>Drilling</subject><subject>Electrons</subject><subject>Energy resources</subject><subject>Equilibrium</subject><subject>Flow stability</subject><subject>Friction</subject><subject>Mines and mineral resources</subject><subject>Natural gas</subject><subject>Pipes</subject><subject>Service life</subject><subject>Shear strength</subject><subject>Shear stress</subject><subject>Simulation</subject><subject>Stress concentration</subject><subject>Stress distribution</subject><subject>Stress state</subject><subject>Technology application</subject><issn>2227-9717</issn><issn>2227-9717</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpNkN9LwzAQx4MoOHQv_gUB34TN_GiT5nGOOYWBg81XS5petow2qWmH7r-3o4LePdxxfD_f4w6hO0qmnCvy2ETKiKJKiQs0YozJiZJUXv7rr9G4bQ-kD0V5looR-ljHUIfO-R1e6hYvvruoTeeCx1swex-qsDvhL9ft8cZEAI_XrgFsQ8Sr0DNPIcI-VIB7mw4G0Hm8CbbDG9D1Lbqyumph_Ftv0PvzYjt_mazelq_z2WpiGOPdpMi0TTMhaFkaVUrIZFKIIiEFp8KCUJykIEWRisKWUnNLeSJKwoyxzHKtNb9B94NvE8PnEdouP4Rj9P3KnFNKhCQsyXrVdFDtdAW58zacr-2zhNqZ4MG6fj7LKMl4yqjsgYcBMDG0bQSbN9HVOp5ySvLzz_O_n_Mf5alztg</recordid><startdate>20240901</startdate><enddate>20240901</enddate><creator>Wang, Lin</creator><creator>Wang, Dezhang</creator><creator>Chen, Xiangjun</creator><creator>Min, Rui</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>20240901</creationdate><title>Promoting Gas Extraction Technology with Screen Pipe for Long Borehole Protection in Soft Seam</title><author>Wang, Lin ; Wang, Dezhang ; Chen, Xiangjun ; Min, Rui</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c223t-b8af58661ddc9d7e874b6b40b316fe69305e76b56bfd7a3f1346d02ccf2f3aaa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Analysis</topic><topic>Attenuation coefficients</topic><topic>Bituminous coal</topic><topic>Boreholes</topic><topic>Coal</topic><topic>Coal industry</topic><topic>Coal mines</topic><topic>Coal mining</topic><topic>Coalbed methane</topic><topic>Damage patterns</topic><topic>Deformation</topic><topic>Deformation analysis</topic><topic>Deformation effects</topic><topic>Drilling</topic><topic>Electrons</topic><topic>Energy resources</topic><topic>Equilibrium</topic><topic>Flow stability</topic><topic>Friction</topic><topic>Mines and mineral resources</topic><topic>Natural gas</topic><topic>Pipes</topic><topic>Service life</topic><topic>Shear strength</topic><topic>Shear stress</topic><topic>Simulation</topic><topic>Stress concentration</topic><topic>Stress distribution</topic><topic>Stress state</topic><topic>Technology application</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Lin</creatorcontrib><creatorcontrib>Wang, Dezhang</creatorcontrib><creatorcontrib>Chen, Xiangjun</creatorcontrib><creatorcontrib>Min, Rui</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 & 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>Wang, Lin</au><au>Wang, Dezhang</au><au>Chen, Xiangjun</au><au>Min, Rui</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Promoting Gas Extraction Technology with Screen Pipe for Long Borehole Protection in Soft Seam</atitle><jtitle>Processes</jtitle><date>2024-09-01</date><risdate>2024</risdate><volume>12</volume><issue>9</issue><spage>1996</spage><pages>1996-</pages><issn>2227-9717</issn><eissn>2227-9717</eissn><abstract>The inherent properties of soft coal seams and their mechanical environment make long boreholes susceptible to issues like collapse, deformation, and blockages. These problems shorten the service life of the boreholes and hinder extraction efficiency. This paper tackles these challenges by analyzing the deformation and damage patterns of long boreholes in soft coal seams. It examines the stress distribution and deformation characteristics around both protected and unprotected boreholes at different burial depths. Additionally, it recommends using screen pipe protection technology to improve gas extraction and mining operations, as demonstrated in Changping Coal Mine. The results show that screen pipe protection substantially improves the stress distribution and deformation stability of coal seam boreholes. The flow attenuation coefficients of two boreholes equipped with protection technology decreased by 48% and 61%. After 50 days of extraction from boreholes with a protection rate exceeding 90%, gas concentration remained above 50%, which is 2.59 times higher than that of unprotected boreholes. This technology effectively addresses the frequent accidents, poor extraction performance, and inefficiency of long boreholes in soft coal seams, ensuring the mine’s safe and efficient production.</abstract><cop>Basel</cop><pub>MDPI AG</pub><doi>10.3390/pr12091996</doi><oa>free_for_read</oa></addata></record> |
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| ispartof | Processes, 2024-09, Vol.12 (9), p.1996 |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute |
| subjects | Analysis Attenuation coefficients Bituminous coal Boreholes Coal Coal industry Coal mines Coal mining Coalbed methane Damage patterns Deformation Deformation analysis Deformation effects Drilling Electrons Energy resources Equilibrium Flow stability Friction Mines and mineral resources Natural gas Pipes Service life Shear strength Shear stress Simulation Stress concentration Stress distribution Stress state Technology application |
| title | Promoting Gas Extraction Technology with Screen Pipe for Long Borehole Protection in Soft Seam |
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