Method and device for evaluating physical damage of coal reservoir
The invention relates to the field of coal reservoir physical property damage evaluation, and discloses a coal reservoir physical property damage evaluation method and device. According to the method, the water flow velocity distribution of the near-well coal reservoir can be determined in the drain...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | LI XINZE LI CHEN WANG JIAN SUN LICHUN CHAO JIAHAO LIU JIA FENG RUYONG DU XIYAO JIANG BAOSHENG LI NA WANG CUNWU |
| description | The invention relates to the field of coal reservoir physical property damage evaluation, and discloses a coal reservoir physical property damage evaluation method and device. According to the method, the water flow velocity distribution of the near-well coal reservoir can be determined in the drainage and pressure reduction stage of the coal-bed gas well. The pulverized coal particles are classified based on the relationship between the particle size of the pulverized coal particles and the degree of difficulty of passing through the fissure pore throat to determine at least one boundary particle size. And determining each boundary particle size and the starting water flow velocity corresponding to the minimum pulverized coal particle size according to the stress analysis result of the pulverized coal particles in the water. The near-well coal reservoir is divided into a plurality of pulverized coal particle movement areas based on the starting water flow velocity and the water flow velocity distribution. An |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN118008264A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN118008264A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN118008264A3</originalsourceid><addsrcrecordid>eNrjZHDyTS3JyE9RSMxLUUhJLctMTlVIyy9SSC1LzClNLMnMS1coyKgszkxOzFFIScxNTE9VyE9TSM4HcotSi1OLyvIzi3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GhhYGBhZGZiaMxMWoAHQMx0Q</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Method and device for evaluating physical damage of coal reservoir</title><source>esp@cenet</source><creator>LI XINZE ; LI CHEN ; WANG JIAN ; SUN LICHUN ; CHAO JIAHAO ; LIU JIA ; FENG RUYONG ; DU XIYAO ; JIANG BAOSHENG ; LI NA ; WANG CUNWU</creator><creatorcontrib>LI XINZE ; LI CHEN ; WANG JIAN ; SUN LICHUN ; CHAO JIAHAO ; LIU JIA ; FENG RUYONG ; DU XIYAO ; JIANG BAOSHENG ; LI NA ; WANG CUNWU</creatorcontrib><description>The invention relates to the field of coal reservoir physical property damage evaluation, and discloses a coal reservoir physical property damage evaluation method and device. According to the method, the water flow velocity distribution of the near-well coal reservoir can be determined in the drainage and pressure reduction stage of the coal-bed gas well. The pulverized coal particles are classified based on the relationship between the particle size of the pulverized coal particles and the degree of difficulty of passing through the fissure pore throat to determine at least one boundary particle size. And determining each boundary particle size and the starting water flow velocity corresponding to the minimum pulverized coal particle size according to the stress analysis result of the pulverized coal particles in the water. The near-well coal reservoir is divided into a plurality of pulverized coal particle movement areas based on the starting water flow velocity and the water flow velocity distribution. An</description><language>chi ; eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240510&DB=EPODOC&CC=CN&NR=118008264A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240510&DB=EPODOC&CC=CN&NR=118008264A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI XINZE</creatorcontrib><creatorcontrib>LI CHEN</creatorcontrib><creatorcontrib>WANG JIAN</creatorcontrib><creatorcontrib>SUN LICHUN</creatorcontrib><creatorcontrib>CHAO JIAHAO</creatorcontrib><creatorcontrib>LIU JIA</creatorcontrib><creatorcontrib>FENG RUYONG</creatorcontrib><creatorcontrib>DU XIYAO</creatorcontrib><creatorcontrib>JIANG BAOSHENG</creatorcontrib><creatorcontrib>LI NA</creatorcontrib><creatorcontrib>WANG CUNWU</creatorcontrib><title>Method and device for evaluating physical damage of coal reservoir</title><description>The invention relates to the field of coal reservoir physical property damage evaluation, and discloses a coal reservoir physical property damage evaluation method and device. According to the method, the water flow velocity distribution of the near-well coal reservoir can be determined in the drainage and pressure reduction stage of the coal-bed gas well. The pulverized coal particles are classified based on the relationship between the particle size of the pulverized coal particles and the degree of difficulty of passing through the fissure pore throat to determine at least one boundary particle size. And determining each boundary particle size and the starting water flow velocity corresponding to the minimum pulverized coal particle size according to the stress analysis result of the pulverized coal particles in the water. The near-well coal reservoir is divided into a plurality of pulverized coal particle movement areas based on the starting water flow velocity and the water flow velocity distribution. An</description><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>FIXED CONSTRUCTIONS</subject><subject>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHDyTS3JyE9RSMxLUUhJLctMTlVIyy9SSC1LzClNLMnMS1coyKgszkxOzFFIScxNTE9VyE9TSM4HcotSi1OLyvIzi3gYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GhhYGBhZGZiaMxMWoAHQMx0Q</recordid><startdate>20240510</startdate><enddate>20240510</enddate><creator>LI XINZE</creator><creator>LI CHEN</creator><creator>WANG JIAN</creator><creator>SUN LICHUN</creator><creator>CHAO JIAHAO</creator><creator>LIU JIA</creator><creator>FENG RUYONG</creator><creator>DU XIYAO</creator><creator>JIANG BAOSHENG</creator><creator>LI NA</creator><creator>WANG CUNWU</creator><scope>EVB</scope></search><sort><creationdate>20240510</creationdate><title>Method and device for evaluating physical damage of coal reservoir</title><author>LI XINZE ; LI CHEN ; WANG JIAN ; SUN LICHUN ; CHAO JIAHAO ; LIU JIA ; FENG RUYONG ; DU XIYAO ; JIANG BAOSHENG ; LI NA ; WANG CUNWU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN118008264A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>FIXED CONSTRUCTIONS</topic><topic>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><toplevel>online_resources</toplevel><creatorcontrib>LI XINZE</creatorcontrib><creatorcontrib>LI CHEN</creatorcontrib><creatorcontrib>WANG JIAN</creatorcontrib><creatorcontrib>SUN LICHUN</creatorcontrib><creatorcontrib>CHAO JIAHAO</creatorcontrib><creatorcontrib>LIU JIA</creatorcontrib><creatorcontrib>FENG RUYONG</creatorcontrib><creatorcontrib>DU XIYAO</creatorcontrib><creatorcontrib>JIANG BAOSHENG</creatorcontrib><creatorcontrib>LI NA</creatorcontrib><creatorcontrib>WANG CUNWU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI XINZE</au><au>LI CHEN</au><au>WANG JIAN</au><au>SUN LICHUN</au><au>CHAO JIAHAO</au><au>LIU JIA</au><au>FENG RUYONG</au><au>DU XIYAO</au><au>JIANG BAOSHENG</au><au>LI NA</au><au>WANG CUNWU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method and device for evaluating physical damage of coal reservoir</title><date>2024-05-10</date><risdate>2024</risdate><abstract>The invention relates to the field of coal reservoir physical property damage evaluation, and discloses a coal reservoir physical property damage evaluation method and device. According to the method, the water flow velocity distribution of the near-well coal reservoir can be determined in the drainage and pressure reduction stage of the coal-bed gas well. The pulverized coal particles are classified based on the relationship between the particle size of the pulverized coal particles and the degree of difficulty of passing through the fissure pore throat to determine at least one boundary particle size. And determining each boundary particle size and the starting water flow velocity corresponding to the minimum pulverized coal particle size according to the stress analysis result of the pulverized coal particles in the water. The near-well coal reservoir is divided into a plurality of pulverized coal particle movement areas based on the starting water flow velocity and the water flow velocity distribution. An</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN118008264A |
| source | esp@cenet |
| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | Method and device for evaluating physical damage of coal reservoir |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-11T03%3A05%3A24IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=LI%20XINZE&rft.date=2024-05-10&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN118008264A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |