CA2281958A1 - Ferrule-type fitting for sealing an electrical conduit in a wellhead barrier - Google Patents
Ferrule-type fitting for sealing an electrical conduit in a wellhead barrier Download PDFInfo
- Publication number
- CA2281958A1 CA2281958A1 CA002281958A CA2281958A CA2281958A1 CA 2281958 A1 CA2281958 A1 CA 2281958A1 CA 002281958 A CA002281958 A CA 002281958A CA 2281958 A CA2281958 A CA 2281958A CA 2281958 A1 CA2281958 A1 CA 2281958A1
- Authority
- CA
- Canada
- Prior art keywords
- rigid tube
- ferrule
- fitting
- bushing
- electrical conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004888 barrier function Effects 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 abstract 4
- 239000000463 material Substances 0.000 abstract 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0407—Casing heads; Suspending casings or tubings in well heads with a suspended electrical cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5205—Sealing means between cable and housing, e.g. grommet
- H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Insulating Bodies (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a ferrule-type fitting for forming a fluid-tight seal between an insulated electrical conductor extending from outside a well to a wellhead barrier and a rigid tube that projects outside the wellhead barrier. The rigid tube surrounds the electrical conductor and extends through the wellhead barrier for routing the electrical conductor. The ferrule-type fitting is comprised of a tubular body fitting with an elongated opening sized and shaped to fit around the rigid tube. The opening includes a conical counter bored section adjacent to one end for forming a gap between the body fitting and the rigid tube. The body fitting includes an outer threaded surface on the one end. A ring shaped ferrule bushing is formed of a material softer than the material of the rigid tube, which has the tendency of returning to its original shape after being deformed. The ferrule bushing is sized and shaped to fit around and directly contact the rigid tube and interface the conical counter bore section with the gap. A nut fitting is provided which includes a threaded inner surface for engagement with the outer threaded surface of the body fitting. The nut has a shoulder for engaging the ferrule bushing. The shoulder engages the ferrule bushing so that the ferrule bushing is deformed to engage and crimp the rigid tube. This provides a fluid-tight seal between the inner surface of the rigid tube and the insulated electrical conductor after the nut fitting is tightened onto the body fitting. The ferrule bushing is not hard enough to permanently engage the rigid tube, but returns to its original shape so that it can be removed from the crimped rigid tube when the nut fitting is loosened and removed from the body fitting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002159448A CA2159448C (en) | 1993-04-29 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002159448A Division CA2159448C (en) | 1991-02-06 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2281958A1 true CA2281958A1 (en) | 1994-11-10 |
CA2281958C CA2281958C (en) | 2003-06-10 |
Family
ID=4156677
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002246395A Expired - Lifetime CA2246395C (en) | 1993-04-29 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
CA002246400A Expired - Lifetime CA2246400C (en) | 1993-04-29 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
CA002281958A Expired - Lifetime CA2281958C (en) | 1993-04-29 | 1993-04-29 | Ferrule-type fitting for sealing an electrical conduit in a wellhead barrier |
CA002159448A Expired - Lifetime CA2159448C (en) | 1991-02-06 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002246395A Expired - Lifetime CA2246395C (en) | 1993-04-29 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
CA002246400A Expired - Lifetime CA2246400C (en) | 1993-04-29 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002159448A Expired - Lifetime CA2159448C (en) | 1991-02-06 | 1993-04-29 | Seal electrical conductor arrangement for use with a well bore in hazardous areas |
Country Status (1)
Country | Link |
---|---|
CA (4) | CA2246395C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI3627635T3 (en) | 2018-09-19 | 2023-03-22 | Connecting element, module connection, circuit board arrangement and method for fabrication of a connecting element | |
CN114665313A (en) * | 2020-12-23 | 2022-06-24 | 沈阳新松机器人自动化股份有限公司 | Wire harness waterproof device |
CN114000832B (en) * | 2021-10-22 | 2024-06-07 | 重庆昌瑞电器制造有限公司 | Wellhead steel pipe cable connector |
-
1993
- 1993-04-29 CA CA002246395A patent/CA2246395C/en not_active Expired - Lifetime
- 1993-04-29 CA CA002246400A patent/CA2246400C/en not_active Expired - Lifetime
- 1993-04-29 CA CA002281958A patent/CA2281958C/en not_active Expired - Lifetime
- 1993-04-29 CA CA002159448A patent/CA2159448C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2246395C (en) | 2002-07-16 |
CA2246395A1 (en) | 1994-11-10 |
CA2246400C (en) | 2003-10-21 |
CA2159448C (en) | 1999-11-30 |
CA2246400A1 (en) | 1994-11-10 |
CA2159448A1 (en) | 1994-11-10 |
CA2281958C (en) | 2003-06-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |