Matches in SemOpenAlex for { <https://semopenalex.org/work/W3048220401> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W3048220401 endingPage "103526" @default.
- W3048220401 startingPage "103526" @default.
- W3048220401 abstract "Liquid nitrogen (LN2), a new and effective reservoir stimulating medium, has been widely used to boost coal bed methane (CBM) production. In this study, the damage mechanism and permeability evolution of the coal during LN2 freeze-thaw cycles are explored. The permeability tester was used to obtain the permeability of coal under different confining pressure and freeze-thaw cycles; the camera and scanning electron microscope (SEM) were respectively employed to observe cracks in the coal from the macroscopic and microscopic perspectives, and the ultrasonic wave was used to monitor the wave velocity of the coal. The experimental results showed that initial defects in the coal were firstly destroyed, forming the main fracture network; with the increase of cycles, the cracks were generated in coal matrix and gradually expanded and intersected with the main fracture network, then a complex fracture network was formed. The above results are consistent with the results of wave velocity. The wave velocity decreased about 40% after 10 cycles. Thus, the permeability of coal increased with the increase of cycles. Under the confining pressure of 9 MPa, the permeability reached 1.216 mD with an increase of 1200 times after five cycles. Besides, the coal sample with the small initial wave velocity had the most obvious improvement of permeability. The increase of confining pressure led to the decrease of permeability, and the sensitivity of permeability to confining pressure increased with the increase of cycles. Especially, under the low confining pressure, there was the biggest decrease of 3.44mD on the permeability for 1 MPa increment of confining pressure. During the freeze-thaw cycles, the temperature stress was the main factor of the damage on cracks and cementation structures, and LN2 gasification can cause the secondary propagation of cracks. Moreover, the uncoordinated deformation of matrix and mineral particles was the main factor promoting the initiation of cracks." @default.
- W3048220401 created "2020-08-13" @default.
- W3048220401 creator A5022038402 @default.
- W3048220401 creator A5029943745 @default.
- W3048220401 creator A5031893488 @default.
- W3048220401 creator A5032962030 @default.
- W3048220401 creator A5089489444 @default.
- W3048220401 date "2020-11-01" @default.
- W3048220401 modified "2023-10-13" @default.
- W3048220401 title "Experimental study on coal permeability and cracking characteristics under LN2 freeze-thaw cycles" @default.
- W3048220401 cites W1979702386 @default.
- W3048220401 cites W2027855275 @default.
- W3048220401 cites W2039910704 @default.
- W3048220401 cites W2045515436 @default.
- W3048220401 cites W2048462006 @default.
- W3048220401 cites W2049558613 @default.
- W3048220401 cites W2060949530 @default.
- W3048220401 cites W2061390428 @default.
- W3048220401 cites W2071700519 @default.
- W3048220401 cites W2095158302 @default.
- W3048220401 cites W2163537345 @default.
- W3048220401 cites W2194882149 @default.
- W3048220401 cites W2434380008 @default.
- W3048220401 cites W2568389952 @default.
- W3048220401 cites W2702809032 @default.
- W3048220401 cites W2891818574 @default.
- W3048220401 cites W3005411648 @default.
- W3048220401 cites W844998372 @default.
- W3048220401 doi "https://doi.org/10.1016/j.jngse.2020.103526" @default.
- W3048220401 hasPublicationYear "2020" @default.
- W3048220401 type Work @default.
- W3048220401 sameAs 3048220401 @default.
- W3048220401 citedByCount "22" @default.
- W3048220401 countsByYear W30482204012021 @default.
- W3048220401 countsByYear W30482204012022 @default.
- W3048220401 countsByYear W30482204012023 @default.
- W3048220401 crossrefType "journal-article" @default.
- W3048220401 hasAuthorship W3048220401A5022038402 @default.
- W3048220401 hasAuthorship W3048220401A5029943745 @default.
- W3048220401 hasAuthorship W3048220401A5031893488 @default.
- W3048220401 hasAuthorship W3048220401A5032962030 @default.
- W3048220401 hasAuthorship W3048220401A5089489444 @default.
- W3048220401 hasConcept C108615695 @default.
- W3048220401 hasConcept C120882062 @default.
- W3048220401 hasConcept C127313418 @default.
- W3048220401 hasConcept C127413603 @default.
- W3048220401 hasConcept C159985019 @default.
- W3048220401 hasConcept C185592680 @default.
- W3048220401 hasConcept C187320778 @default.
- W3048220401 hasConcept C192562407 @default.
- W3048220401 hasConcept C205093917 @default.
- W3048220401 hasConcept C26771246 @default.
- W3048220401 hasConcept C41625074 @default.
- W3048220401 hasConcept C518851703 @default.
- W3048220401 hasConcept C548081761 @default.
- W3048220401 hasConcept C55493867 @default.
- W3048220401 hasConcept C58396970 @default.
- W3048220401 hasConceptScore W3048220401C108615695 @default.
- W3048220401 hasConceptScore W3048220401C120882062 @default.
- W3048220401 hasConceptScore W3048220401C127313418 @default.
- W3048220401 hasConceptScore W3048220401C127413603 @default.
- W3048220401 hasConceptScore W3048220401C159985019 @default.
- W3048220401 hasConceptScore W3048220401C185592680 @default.
- W3048220401 hasConceptScore W3048220401C187320778 @default.
- W3048220401 hasConceptScore W3048220401C192562407 @default.
- W3048220401 hasConceptScore W3048220401C205093917 @default.
- W3048220401 hasConceptScore W3048220401C26771246 @default.
- W3048220401 hasConceptScore W3048220401C41625074 @default.
- W3048220401 hasConceptScore W3048220401C518851703 @default.
- W3048220401 hasConceptScore W3048220401C548081761 @default.
- W3048220401 hasConceptScore W3048220401C55493867 @default.
- W3048220401 hasConceptScore W3048220401C58396970 @default.
- W3048220401 hasFunder F4320323154 @default.
- W3048220401 hasLocation W30482204011 @default.
- W3048220401 hasOpenAccess W3048220401 @default.
- W3048220401 hasPrimaryLocation W30482204011 @default.
- W3048220401 hasRelatedWork W1512319868 @default.
- W3048220401 hasRelatedWork W2029314514 @default.
- W3048220401 hasRelatedWork W2351696714 @default.
- W3048220401 hasRelatedWork W2387616028 @default.
- W3048220401 hasRelatedWork W2888795024 @default.
- W3048220401 hasRelatedWork W3014407905 @default.
- W3048220401 hasRelatedWork W4200391870 @default.
- W3048220401 hasRelatedWork W4281478973 @default.
- W3048220401 hasRelatedWork W4297313124 @default.
- W3048220401 hasRelatedWork W4309315233 @default.
- W3048220401 hasVolume "83" @default.
- W3048220401 isParatext "false" @default.
- W3048220401 isRetracted "false" @default.
- W3048220401 magId "3048220401" @default.
- W3048220401 workType "article" @default.