公开(公告)号：US20180252049A1

公开(公告)日：2018-09-06

申请号：US15752737

申请日：2016-08-12

申请人： EVOLUTION ENGINEERING INC.

发明人： Luke A. STACK ,  Aaron W. LOGAN ,  Justin C. LOGAN ,  Mojtaba KAZEMI MIRAKI ,  Patrick R. DERKACZ ,  Gavin Gaw-wae LEE ,  Hasan Alper HEPGUVENDIK ,  Daniel W. AHMOYE ,  Angelica J.B. FRANCOEUR

IPC分类号： E21B17/00 ,  H01B3/12 ,  E21B17/042 ,  H01B17/38

CPC分类号： E21B17/003 ,  E21B17/028 ,  E21B17/0426 ,  F16B17/004 ,  F16L25/025 ,  H01B3/12 ,  H01B17/38

摘要： A gap sub assembly for electromagnetic telemetry used in downhole drilling is disclosed. The gap sub comprises a female part comprising a female mating section and a male part comprising a male mating section. The male mating section is matingly received within the female mating section and electrically isolated therefrom. One or more electrically insulating bodies secure the male part axially and torsionally relative to the female part. The electrically insulating bodies also electrically isolate the male part from the female part. The electrically insulating bodies can be installed through apertures in the female part or at least some of the electrically insulating bodies can be installed before the male mating section is inserted into the female mating section. The electrically insulating bodies can be held in place on the male mating section using a retention apparatus such as a ring, a scarf, pods or an adhesive.

公开(公告)号：US20190316712A1

公开(公告)日：2019-10-17

申请号：US16473210

申请日：2017-12-22

申请人： Evolution Engineering Inc.

发明人： Luke A. STACK ,  Aaron W. LOGAN ,  Justin C. LOGAN ,  Patrick R. DERKACZ ,  Gavin Gaw-Wae LEE ,  Hasan Alper HEPGUVENDIK ,  Mojtaba KAZEMI MIRAKI ,  Daniel W. AHMOYE ,  Kurtis K.L. WEST ,  Angelica J.B. FRANCOEUR

IPC分类号： F16L25/02 ,  E21B17/04 ,  E21B17/00 ,  E21B47/12 ,  F16L13/10

摘要： One or more seals may be provided in a gap sub to prevent the ingress of drilling fluid into an insulating gap between a male member of the gap sub and a female member of the gap sub. A first seal may comprise an internal gap sub seal provided near the tip of the male member of the gap sub. A second seal may comprise an external gap sub seal provided near the tip of the female member of the gap sub. The first and second seals may comprise non-conductive materials. The first and second seals may each comprise one or more O-rings. The first and second seals may comprise one or more lips, protrusions or flanges to engage the male and/or female members of the gap sub for maintaining contact with the male and/or female members during deformation of the gap sub.

公开(公告)号：US20210381319A1

公开(公告)日：2021-12-09

申请号：US17445561

申请日：2021-08-20

申请人： EVOLUTION ENGINEERING INC.

发明人： Luke A. STACK ,  Aaron W. LOGAN ,  Justin C. LOGAN ,  Mojtaba KAZEMI MIRAKI ,  Patrick R. DERKACZ ,  Gavin Gaw-wae LEE ,  Hasan Alper HEPGUVENDIK ,  Daniel W. AHMOYE ,  Angelica J.B. FRANCOEUR

IPC分类号： E21B17/00 ,  H01B3/12 ,  F16L25/01 ,  E21B17/02

摘要： A gap sub assembly for electromagnetic telemetry used in downhole drilling is disclosed. The gap sub comprises a female part comprising a female mating section and a male part comprising a male mating section. The male mating section is matingly received within the female mating section and electrically isolated therefrom. One or more electrically insulating bodies secure the male part axially and torsionally relative to the female part. The electrically insulating bodies also electrically isolate the male part from the female part. The electrically insulating bodies can be installed through apertures in the female part or at least some of the electrically insulating bodies can be installed before the male mating section is inserted into the female mating section. The electrically insulating bodies can be held in place on the male mating section using a retention apparatus such as a ring, a scarf, pods or an adhesive.