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41. 发明专利

CA2630433A1 HARDFACING MATERIALS WITH HIGHLY CONFORMING PROPERTIES 未知
公开(公告)号：CA2630433A1
公开(公告)日：2007-05-24
申请号：CA2630433
申请日：2006-11-15
申请人： BAKER HUGHES INC
发明人： CURRY DAVID A , STEVENS JOHN H , SULLIVAN ERIC C , EASON JIMMY W , OVERSTREET JAMES L
IPC分类号： E21B10/46 , B23K35/30 , C22C38/22 , C23C30/00
摘要： An earth-boring bit, and a method of increasing the durability of the same, which includes the step providing a pliable sheet of a hardfacing matrix material. The pliable sheet of hardfacing material has a nickel and chromium matrix combined with a first element. The first element is selected from a group consisting of spherical sintered tungsten carbide, spherical cast tungsten carbide, and metallic glass. The hardfacing matrix material sheet is placed on a preselected surface of the drill bit. The hardfacing matrix material sheet is then fusion bonded to the drill bit.

42. 发明专利

PL2313595T3 Sposoby wytwarzania narzędzi do wierceń w ziemi przy użyciu kompensacji geometrycznej i narzędzia wytwarzane takimi sposobami 未知
公开(公告)号：PL2313595T3
公开(公告)日：2017-04-28
申请号：PL09759316
申请日：2009-06-03
申请人： BAKER HUGHES INC
发明人： SMITH REDD H , STEVENS JOHN H , DUGGAN JAMES , LYONS NICHOLAS J , EASON JIMMY W , MATTHEWS OLIVER , CURRY DAVID A
IPC分类号： E21B10/00

43. 发明专利

CA2796752C FORMATION EVALUATION USING A BIT-BASED ACTIVE RADIATION SOURCE AND A GAMMA RAY DETECTOR 未知
公开(公告)号：CA2796752C
公开(公告)日：2015-03-24
申请号：CA2796752
申请日：2011-04-19
申请人： BAKER HUGHES INC
发明人： TRINH TU TIEN , SULLIVAN ERIC , CURRY DAVID A , CHENG XIAOMIN C , INANC FEYZI , LIU YI
IPC分类号： E21B47/00 , G01V5/10 , G01V5/12
摘要： A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation.

44. 发明专利

GB2481757B Method and apparatus for developing a reservoir in an earth formation 未知
公开(公告)号：GB2481757B
公开(公告)日：2014-03-26
申请号：GB201118097
申请日：2010-04-06
申请人： BAKER HUGHES INC
发明人： PRASAD UMESH , CURRY DAVID A
IPC分类号： E21B49/00 , G01V1/50 , G01V3/32
摘要： Acoustic velocities measured downhole are used to predict a rock strength using results of a regression analysis that include grain size. The grain size can be obtained from drill cuttings or from NMR measurements. The determined rock strength is used in drilling operations.

45. 发明专利

CA2796752A1 FORMATION EVALUATION USING A BIT-BASED ACTIVE RADIATION SOURCE AND A GAMMA RAY DETECTOR 未知
公开(公告)号：CA2796752A1
公开(公告)日：2011-10-27
申请号：CA2796752
申请日：2011-04-19
申请人： BAKER HUGHES INC
发明人： TRINH TU TIEN , SULLIVAN ERIC , CURRY DAVID A , CHENG XIAOMIN C , INANC FEYZI , LIU YI
IPC分类号： E21B47/00 , G01V5/10 , G01V5/12
摘要： A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation.

46. 发明专利

CA2625521C SYSTEM, METHOD, AND APPARATUS FOR ENHANCING THE DURABILITY OF EARTH-BORING BITS WITH CARBIDE MATERIALS 未知
公开(公告)号：CA2625521C
公开(公告)日：2011-08-23
申请号：CA2625521
申请日：2006-10-11
申请人： BAKER HUGHES INC
发明人： CURRY DAVID A , OVERSTREET JAMES L , EASON JIMMY W
IPC分类号： C30B33/06 , C30B29/36 , E21B10/46 , E21B10/567
摘要： An earth-boring drill bit having a bit body with a cutting component formed from a tungsten carbide composite material is disclosed. The composite material includes a binder and tungsten carbide crystals comprising sintered pellets. The composite material may be used as a hardfacing on the body and/or cutting elements, or be used to form portions or all of the body and cutting elements. The pellets may be formed with a single mode or multi-modal size distribution of the crystals.

47. 发明专利

GB2367314B A method of selecting a drill bit by generating a predictive indicator of potential for abrasive wear 未知
公开(公告)号：GB2367314B
公开(公告)日：2004-01-14
申请号：GB0122735
申请日：2000-02-24
申请人： BAKER HUGHES INC
发明人： LEDGERWOOD III LEROY , COOLEY CRAIG H , CURRY DAVID A
IPC分类号： E21B41/00 , E21B44/00 , E21B49/00 , E21C39/00
摘要： A method is provided for generating an indicator of potential bit abrasion in a particular wellbore. Forensic wellbore data is obtained from at least one previously drilled wellbore which is determined to be comparable to the particular target wellbore. Typically, the comparable wellbore comprises an "offset" wellbore which is proximate the target wellbore, and which has similar geologic features. An inference engine computer program is provided which consists of executable program instructions. It is adapted to utilize a plurality of wellbore parameters, including the forensic wellbore data. The inference engine includes at least one rule matrix which defines a plurality of fuzzy sets. These fuzzy sets establish correspondence between the plurality of wellbore parameters and the indictor of potential bit abrasion. The inference engine computer program is loaded onto a data processing system. At least the forensic wellbore data is supplied as an input to the inference engine computer program. The data processing system is utilized to execute the program instructions of the inference engine computer program. This causes the application of the inputs to the inference engine computer program. The inference engine computer program produces as an output an indication of potential bit abrasion in the particular target wellbore.

48. 发明专利

GB2367313B Method and apparatus for determining potential for drill bit performance 未知
公开(公告)号：GB2367313B
公开(公告)日：2003-10-29
申请号：GB0122519
申请日：2000-02-24
申请人： BAKER HUGHES INC
发明人： LEDGERWOOD III LEROY , COOLEY CRAIG H , CURRY DAVID A
IPC分类号： E21B10/00 , E21B41/00 , E21B44/00 , E21B49/00 , G01V1/50 , G01V1/28 , G01V1/30
摘要： A method is provided for generating an indicator of potential bit performance in a particular wellbore. Forensic wellbore data is obtained from at least one previously drilled wellbore which is determined to be comparable to the particular target wellbore. Typically, the comparable wellbore comprises an "offset" wellbore which is proximate the target wellbore, and which has similar geologic features. An inference engine computer program is provided which consists of executable program instructions. It is adapted to utilize a plurality of wellbore parameters, including the forensic wellbore data. The inference engine includes at least one rule matrix which defines a plurality of fuzzy sets. These fuzzy sets establish correspondence between the plurality of wellbore parameters and the indictor of potential bit performance. The inference engine computer program is loaded onto a data processing system. The forensic wellbore data and at least one other of the plurality of wellbore parameters is supplied as an input to the inference engine computer program. The data processing system is utilized to execute the program instructions of the inference engine computer program. This causes the application of the inputs to the inference engine computer program. The inference engine computer program produces as an output an indication of potential bit performance in the particular target wellbore.

49. 发明专利

GB2367313A Method and apparatus for determining potential for drill bit performance 未知
公开(公告)号：GB2367313A
公开(公告)日：2002-04-03
申请号：GB0122519
申请日：2000-02-24
申请人： BAKER HUGHES INC
发明人： LEDGERWOOD III LEROY , COOLEY CRAIG H , CURRY DAVID A
IPC分类号： E21B10/00 , E21B41/00 , E21B44/00 , E21B49/00 , G01V1/50 , G01V1/28 , G01V1/30
摘要： A method is provided for generating an indicator of potential bit performance in a particular wellbore. Forensic wellbore data is obtained front at least one previously drilled wellbore which is determined to be comparable to the particular target wellbore. Typically, the comparable wellbore comprises an "offset" wellbore which is proximate the target wellbore, and which has similar geologic features. An inference engine computer program is provided which consists of executable program instructions. It is adapted to utilize a plurality of wellbore parameters, including the forensic wellbore data. The inference engine includes at least one rule matrix which defines a plurality of fuzzy sets. These fuzzy sets establish correspondence between the plurality of wellbore parameters and the indictor of potential bit performance. The inference engine computer program is loaded onto a data processing system. The forensic wellbore data and at least one other of the plurality of wellbore parameters is supplied as an input to the inference engine computer program. The data processing system is utilized to execute the program instructions of the inference engine computer program. This causes the application of the inputs to the inference engine computer program. The inference engine computer program produces as an output an indication of potential bit performance in the particular target wellbore.

50. 发明专利

GB2363652A Method and apparatus for determining potential interfacial severity for a formation 未知
公开(公告)号：GB2363652A
公开(公告)日：2002-01-02
申请号：GB0122521
申请日：2000-02-24
申请人： BAKER HUGHES INC
发明人： LEDGERWOOD III LEROY W , COOLEY CRAIG H , CURRY DAVID A , MEANY NIGEL C
IPC分类号： E21B41/00 , E21B44/00 , E21B49/00 , E21B49/02 , G06F17/00
摘要： A method and apparatus are provided for generating an indicator of potential for abrupt changes in rock strength in a particular wellbore. Forensic wellbore data is obtained from at least one previously drilled wellbore which is determined to be comparable to the target wellbore. An interfacial severity computer program is provided. The program consists of executable program instructions. It is adapted to utilize a plurality of wellbore parameters, including at least one forensic wellbore data element. The interfacial severity computer program is loaded onto a data processing system. At least the forensic wellbore data, and possibly other wellbore parameter data elements, are supplied as an input to the interfacial severity computer program. The data processing system is utilized to execute program instructions of the interfacial severity computer program. This applies the inputs to the interfacial severity computer program which produces an output and indicator of the potential for abrupt changes in rock strength in the particular target wellbore.

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