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  Patent History
  • Application
    US 09/943592 2001-08-30
  • Publication
    US 2002074165 2002-06-20

published patent: Drilling process monitor

TitleDrilling process monitor
Priority Date2001-08-30 US 09/943592
2000-09-22 US 09/234535P
Inventors
Issue Date2002
Citation
US Published patent application US 2002074165. Washington, DC: US Patent and Trademark Office (USPTO), 2002 How to Cite?
AbstractAn apparatus is used with a drilling assembly for drilling a borehole. The drilling assembly has an impact device linked to a drill head. The impact device is powered by a first fluid under a first pressure to impart a percussive force to the drill head. The percussive force is a function of the first pressure. A thruster of the drilling assembly is also linked to the drill head. The thruster is powered by a second fluid under a second pressure to impart a thrust force to the drill head. The thrust force is a function of the second pressure. Additionally, a rotator of the drilling assembly is linked to the drill head. The rotator is powered by a third fluid under a third pressure to impart a torque to the drill head. The torque is a function of the third pressure.; The apparatus includes a first pressure sensor communicating with the first fluid to output a first electrical signal that is a function of the first pressure. A second pressure sensor communicates with the second fluid to output a second electrical signal that is a function of the second pressure. A third pressure sensor communicates with the third fluid to output a third electrical signal that is a function of the third pressure. A position sensor outputs a fourth electrical signal that is a function of depth of the drill head relative to a reference location. A device monitors the first, second, third and fourth signals. The device produces respective graph traces of functions of the percussive force, the thrust force, the torque and the depth.
Persistent Identifierhttp://hdl.handle.net/10722/176822

 

DC FieldValueLanguage
dc.date.accessioned2012-11-30T08:38:32Z-
dc.date.available2012-11-30T08:38:32Z-
dc.date.issued2002-
dc.identifier.citationUS Published patent application US 2002074165. Washington, DC: US Patent and Trademark Office (USPTO), 2002en_HK
dc.identifier.urihttp://hdl.handle.net/10722/176822-
dc.description.abstractAn apparatus is used with a drilling assembly for drilling a borehole. The drilling assembly has an impact device linked to a drill head. The impact device is powered by a first fluid under a first pressure to impart a percussive force to the drill head. The percussive force is a function of the first pressure. A thruster of the drilling assembly is also linked to the drill head. The thruster is powered by a second fluid under a second pressure to impart a thrust force to the drill head. The thrust force is a function of the second pressure. Additionally, a rotator of the drilling assembly is linked to the drill head. The rotator is powered by a third fluid under a third pressure to impart a torque to the drill head. The torque is a function of the third pressure.; The apparatus includes a first pressure sensor communicating with the first fluid to output a first electrical signal that is a function of the first pressure. A second pressure sensor communicates with the second fluid to output a second electrical signal that is a function of the second pressure. A third pressure sensor communicates with the third fluid to output a third electrical signal that is a function of the third pressure. A position sensor outputs a fourth electrical signal that is a function of depth of the drill head relative to a reference location. A device monitors the first, second, third and fourth signals. The device produces respective graph traces of functions of the percussive force, the thrust force, the torque and the depth.en_HK
dc.relation.isreferencedbyUS 2009260876 (A1) 2009-10-22en_HK
dc.relation.isreferencedbyUS 7962288 (B2) 2011-06-14en_HK
dc.relation.isreferencedbyUS 2005194183 (A1) 2005-09-08en_HK
dc.relation.isreferencedbyUS 7219747 (B2) 2007-05-22en_HK
dc.relation.isreferencedbyUS 2005194182 (A1) 2005-09-08en_HK
dc.relation.isreferencedbyUS 7999695 (B2) 2011-08-16en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleDrilling process monitoren_HK
dc.typePatenten_US
dc.description.naturepublished_or_final_versionen_US
dc.contributor.inventorLee, CFen_HK
dc.contributor.inventorLaw Kum Timen_HK
dc.contributor.inventorYue Zhong Qien_HK
patents.identifier.applicationUS 09/943592en_HK
patents.description.assigneeLEE CHACK FAN, ; LAW KUM TIM, ; YUE ZHONG QI, ; THE UNIVERSITY OF HONG KONGen_HK
patents.description.countryUnited States of Americaen_HK
patents.date.publication2002-06-20en_HK
patents.date.application2001-08-30en_HK
patents.date.priority2001-08-30 US 09/943592en_HK
patents.date.priority2000-09-22 US 09/234535Pen_HK
patents.description.ccUSen_HK
patents.identifier.publicationUS 2002074165en_HK
patents.relation.familyCN 1346929 (A) 2002-05-01en_HK
patents.relation.familyCN 1218114 (C) 2005-09-07en_HK
patents.relation.familyHK 1046029 (A1) 2006-04-21en_HK
patents.relation.familyUS 2002074165 (A1) 2002-06-20en_HK
patents.relation.familyUS 6637523 (B2) 2003-10-28en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

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