Matches in SemOpenAlex for { <https://semopenalex.org/work/W4381730192> ?p ?o ?g. }
Showing items 1 to 92 of
92
with 100 items per page.
- W4381730192 abstract "The conven,tional rotary rock breaking method faces a technical bottleneck in improving the rate of penetration (ROP) in deep hard formations. Percussive drilling is the most potential approach to increase rock-breaking efficiency and ROP. However, the rock-breaking mechanism of percussive drilling is still unclear enough, especially the micro-fracture mechanism of rock under confining pressure (under lateral pressure and hydraulic pressure). In this paper, the impact rock breaking experiments by four kinds of Polycrystalline Diamond Compact (PDC) cutters are carried out using a drop-weight impact testing machine and an acoustic emission (AE) recording system, the influence of parameters such as cutter shape, rake angle, and impact energy on rock-breaking are systematically analyzed. This study includes a numerical simulation to examine the process of crack initiation, propagation, and cuttings formation during the impact process with the consideration of confining pressure. The results show the conical-shaped cutter is the most aggressive with high breaking efficiency. The penetration depth of the cutter is mainly influenced by the impact energy and cutter shape than the rake angle of the cutter. There exists critical impact energy makes the rock breaking efficiency the highest. The critical impact energy is about 40 J when using the conical-shaped cutter with a rake angle of 15°. The rock mainly failed in tensile mode, and the inter-grain crack is the main crack. Hydraulic pressure can inhibit the formation of horizontal cracks, while lateral pressure can inhibit the formation of vertical cracks and reduce the proportion of tensile cracks. The research results can provide some reference and basis for improving the rock-breaking efficiency in deep hard formations." @default.
- W4381730192 created "2023-06-24" @default.
- W4381730192 creator A5026340829 @default.
- W4381730192 creator A5043628076 @default.
- W4381730192 creator A5056529858 @default.
- W4381730192 creator A5058810707 @default.
- W4381730192 date "2023-05-01" @default.
- W4381730192 modified "2023-09-28" @default.
- W4381730192 title "Micro-macro fracture mechanism of heterogeneous granite in percussive drilling" @default.
- W4381730192 cites W1979492645 @default.
- W4381730192 cites W2001455529 @default.
- W4381730192 cites W2034239853 @default.
- W4381730192 cites W2065215779 @default.
- W4381730192 cites W2082627090 @default.
- W4381730192 cites W2139176395 @default.
- W4381730192 cites W2156524938 @default.
- W4381730192 cites W2296631351 @default.
- W4381730192 cites W2769045682 @default.
- W4381730192 cites W2777987207 @default.
- W4381730192 cites W2789729308 @default.
- W4381730192 cites W2800605821 @default.
- W4381730192 cites W2805354279 @default.
- W4381730192 cites W2945220053 @default.
- W4381730192 cites W2982876755 @default.
- W4381730192 cites W2988246484 @default.
- W4381730192 cites W3083540243 @default.
- W4381730192 cites W3085279297 @default.
- W4381730192 cites W3090681601 @default.
- W4381730192 cites W3095457959 @default.
- W4381730192 cites W3123095407 @default.
- W4381730192 cites W3134342134 @default.
- W4381730192 cites W3142776520 @default.
- W4381730192 cites W3145586726 @default.
- W4381730192 cites W3181814559 @default.
- W4381730192 cites W3199941455 @default.
- W4381730192 cites W3209441829 @default.
- W4381730192 cites W3214240433 @default.
- W4381730192 cites W4224299083 @default.
- W4381730192 cites W4282913857 @default.
- W4381730192 cites W4283371086 @default.
- W4381730192 cites W4288032904 @default.
- W4381730192 cites W4313503726 @default.
- W4381730192 doi "https://doi.org/10.1016/j.petsci.2023.05.002" @default.
- W4381730192 hasPublicationYear "2023" @default.
- W4381730192 type Work @default.
- W4381730192 citedByCount "0" @default.
- W4381730192 crossrefType "journal-article" @default.
- W4381730192 hasAuthorship W4381730192A5026340829 @default.
- W4381730192 hasAuthorship W4381730192A5043628076 @default.
- W4381730192 hasAuthorship W4381730192A5056529858 @default.
- W4381730192 hasAuthorship W4381730192A5058810707 @default.
- W4381730192 hasBestOaLocation W43817301921 @default.
- W4381730192 hasConcept C112950240 @default.
- W4381730192 hasConcept C124961601 @default.
- W4381730192 hasConcept C127313418 @default.
- W4381730192 hasConcept C127413603 @default.
- W4381730192 hasConcept C159985019 @default.
- W4381730192 hasConcept C187320778 @default.
- W4381730192 hasConcept C192562407 @default.
- W4381730192 hasConcept C205093917 @default.
- W4381730192 hasConcept C25197100 @default.
- W4381730192 hasConcept C2779571069 @default.
- W4381730192 hasConcept C523214423 @default.
- W4381730192 hasConcept C78519656 @default.
- W4381730192 hasConceptScore W4381730192C112950240 @default.
- W4381730192 hasConceptScore W4381730192C124961601 @default.
- W4381730192 hasConceptScore W4381730192C127313418 @default.
- W4381730192 hasConceptScore W4381730192C127413603 @default.
- W4381730192 hasConceptScore W4381730192C159985019 @default.
- W4381730192 hasConceptScore W4381730192C187320778 @default.
- W4381730192 hasConceptScore W4381730192C192562407 @default.
- W4381730192 hasConceptScore W4381730192C205093917 @default.
- W4381730192 hasConceptScore W4381730192C25197100 @default.
- W4381730192 hasConceptScore W4381730192C2779571069 @default.
- W4381730192 hasConceptScore W4381730192C523214423 @default.
- W4381730192 hasConceptScore W4381730192C78519656 @default.
- W4381730192 hasLocation W43817301921 @default.
- W4381730192 hasOpenAccess W4381730192 @default.
- W4381730192 hasPrimaryLocation W43817301921 @default.
- W4381730192 hasRelatedWork W2005955489 @default.
- W4381730192 hasRelatedWork W2076813986 @default.
- W4381730192 hasRelatedWork W2236011088 @default.
- W4381730192 hasRelatedWork W2354203570 @default.
- W4381730192 hasRelatedWork W2385554864 @default.
- W4381730192 hasRelatedWork W2516492602 @default.
- W4381730192 hasRelatedWork W2795266391 @default.
- W4381730192 hasRelatedWork W3032645088 @default.
- W4381730192 hasRelatedWork W3183941053 @default.
- W4381730192 hasRelatedWork W4285005749 @default.
- W4381730192 isParatext "false" @default.
- W4381730192 isRetracted "false" @default.
- W4381730192 workType "article" @default.