Matches in SemOpenAlex for { <https://semopenalex.org/work/W2087482034> ?p ?o ?g. }
Showing items 1 to 65 of
65
with 100 items per page.
- W2087482034 endingPage "132" @default.
- W2087482034 startingPage "119" @default.
- W2087482034 abstract "The pneumatic turbine-powered drilling engine (PTDE) is a unique tool for directional drilling when using air or gas as the drilling fluid. The engine consists of a pneumatic turbine motor coupled to the bit by a four-stage planetary gear transmission and a thrust-bearing assembly, and is supported within a steel housing. The tool was built and bench tested in New Mexico, and field tested at the Geysers Geothermal Field in Santa Rosa (Calif.). In order to predict and analyze the field performance of the tool, two analytical models were derived and validated. A torque model was developed to predict the bit torque as a function of bit rpm at a given air-flow rate and a known air speed entering the turbine rotor. A pressure-loss model was used to calculate the air speed entering the rotor as a function of the bottomhole air pressure, the bottomhole temperature, the air-flow rate, the size of the bit jets, and the tool internal geometry. The two models were validated in a full-scale bench test of the two prototype tools. The validated models were then used to develop turbine air speed and WOB response charts. These charts are for field use in selecting the engine set-up. They are used to select bit jets, and to predict required weight on bit, bit rotary speed, bit torque and bit horsepower." @default.
- W2087482034 created "2016-06-24" @default.
- W2087482034 creator A5017937219 @default.
- W2087482034 creator A5082501989 @default.
- W2087482034 date "1992-09-01" @default.
- W2087482034 modified "2023-09-26" @default.
- W2087482034 title "Development and validation of a model for predicting the performance of a downhole pneumatic turbine-powered drilling engine" @default.
- W2087482034 cites W1985260821 @default.
- W2087482034 cites W2045951792 @default.
- W2087482034 cites W2052141412 @default.
- W2087482034 cites W2074710888 @default.
- W2087482034 cites W2565906798 @default.
- W2087482034 doi "https://doi.org/10.1016/0920-4105(92)90050-b" @default.
- W2087482034 hasPublicationYear "1992" @default.
- W2087482034 type Work @default.
- W2087482034 sameAs 2087482034 @default.
- W2087482034 citedByCount "2" @default.
- W2087482034 countsByYear W20874820342014 @default.
- W2087482034 countsByYear W20874820342023 @default.
- W2087482034 crossrefType "journal-article" @default.
- W2087482034 hasAuthorship W2087482034A5017937219 @default.
- W2087482034 hasAuthorship W2087482034A5082501989 @default.
- W2087482034 hasConcept C121332964 @default.
- W2087482034 hasConcept C127413603 @default.
- W2087482034 hasConcept C144171764 @default.
- W2087482034 hasConcept C171146098 @default.
- W2087482034 hasConcept C17281054 @default.
- W2087482034 hasConcept C199104240 @default.
- W2087482034 hasConcept C2778449969 @default.
- W2087482034 hasConcept C44154836 @default.
- W2087482034 hasConcept C47980062 @default.
- W2087482034 hasConcept C78519656 @default.
- W2087482034 hasConcept C97355855 @default.
- W2087482034 hasConceptScore W2087482034C121332964 @default.
- W2087482034 hasConceptScore W2087482034C127413603 @default.
- W2087482034 hasConceptScore W2087482034C144171764 @default.
- W2087482034 hasConceptScore W2087482034C171146098 @default.
- W2087482034 hasConceptScore W2087482034C17281054 @default.
- W2087482034 hasConceptScore W2087482034C199104240 @default.
- W2087482034 hasConceptScore W2087482034C2778449969 @default.
- W2087482034 hasConceptScore W2087482034C44154836 @default.
- W2087482034 hasConceptScore W2087482034C47980062 @default.
- W2087482034 hasConceptScore W2087482034C78519656 @default.
- W2087482034 hasConceptScore W2087482034C97355855 @default.
- W2087482034 hasIssue "2" @default.
- W2087482034 hasLocation W20874820341 @default.
- W2087482034 hasOpenAccess W2087482034 @default.
- W2087482034 hasPrimaryLocation W20874820341 @default.
- W2087482034 hasRelatedWork W2032500363 @default.
- W2087482034 hasRelatedWork W2039980847 @default.
- W2087482034 hasRelatedWork W2097785449 @default.
- W2087482034 hasRelatedWork W2129400992 @default.
- W2087482034 hasRelatedWork W2132840712 @default.
- W2087482034 hasRelatedWork W2320896024 @default.
- W2087482034 hasRelatedWork W2361213489 @default.
- W2087482034 hasRelatedWork W2564697009 @default.
- W2087482034 hasRelatedWork W3097614859 @default.
- W2087482034 hasRelatedWork W4210764268 @default.
- W2087482034 hasVolume "8" @default.
- W2087482034 isParatext "false" @default.
- W2087482034 isRetracted "false" @default.
- W2087482034 magId "2087482034" @default.
- W2087482034 workType "article" @default.