US20150053392A1 - Surface wellhead electrical connection and method of use - Google Patents

Surface wellhead electrical connection and method of use Download PDF

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Publication number
US20150053392A1
US20150053392A1 US14/466,166 US201414466166A US2015053392A1 US 20150053392 A1 US20150053392 A1 US 20150053392A1 US 201414466166 A US201414466166 A US 201414466166A US 2015053392 A1 US2015053392 A1 US 2015053392A1
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US
United States
Prior art keywords
electrical conductors
connection
wellhead
boot
connector sleeve
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.)
Abandoned
Application number
US14/466,166
Inventor
Tod D. Emerson
Robert K. HALBERT
Jim Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quick Connectors Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US14/466,166 priority Critical patent/US20150053392A1/en
Publication of US20150053392A1 publication Critical patent/US20150053392A1/en
Assigned to DICKINSON, MOIRA reassignment DICKINSON, MOIRA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EMERSON, TOD, HALBERT, ROBERT K, WILLIAMS, JIM
Assigned to QUICK CONNECTORS, INC. reassignment QUICK CONNECTORS, INC. CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED AT REEL: 035268 FRAME: 0015. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: EMERSON, TOD D, HALBERT, ROBERT K, WILLIAMS, JIM
Abandoned legal-status Critical Current

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    • 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
    • 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
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00

Definitions

  • This invention is an electrical connection; more specifically, this device connects electrical conductors coming from a wellhead penetrator to a surface conductor through a flexible braided fitting connected to a tubular connector sleeve, allowing natural aspiration at its distal end, while enclosing one or more splice boots which can be fabricated from polytetrafluoroethylene (PTFE) or cold wrapped connections.
  • PTFE polytetrafluoroethylene
  • This surface wellhead connection is comprised of a flexible braided fitting having external threads on both ends for connection on one end to a wellhead and on the other end to a reducer connected to a tubular connector sleeve enclosing a plurality of electrical conductors extending from the wellhead.
  • Surface electrical conductors connected to a surface conduit extend from a blanking cap which is sized or perforated to allow natural aspiration of the interior of the tubular connector sleeve and an insulating boot surrounds and protects each splice of the electrical conductors.
  • the tubular connector sleeve can be formed from one tubular member or from two telescoping tubular members. When formed from two telescoping members, the tubular sleeve can be connected with screws.
  • the spliced insulated electrical conductors are retained in a boot, which can be formed from polytetrafluoroethylene (PTFE) or polyether ether ketone (PEEK).
  • PTFE polytetrafluoroethylene
  • PEEK polyether ether ketone
  • the PTFE boot can be fabricated with two or three threaded connections. Alternatively, each insulated electrical conductors could be retained in a cold-shrink boot.
  • FIG. 1 is a cross-sectional view of one embodiment of the surface connector apparatus utilizing PTFE boots connecting the penetrator electrical conductors to the surface conductors in a two-piece surface sleeve.
  • FIG. 2 is a cross-sectional view of another embodiment of the surface connector apparatus utilizing cold shrink for each of the three electrical conductors exiting through the penetrator to the surface electrical conductors in a two-piece surface sleeve.
  • FIG. 3 is a cross-sectional view of yet another embodiment of the surface connector apparatus utilizing a two-piece PTFE boot connecting the penetrator electrical conductors to the surface conductors in a one-piece surface sleeve.
  • FIG. 4 is a cross-sectional view of another embodiment of the surface connector apparatus utilizing cold shrink for each of the three electrical conductors exiting through the penetrator to the surface electrical conductors in a one-piece surface sleeve.
  • the present invention relates to a method of splicing a set of conductors extending from a wellhead to a complementary set of electrical conductors at the surface.
  • a wellhead 101 encloses a penetrator 103 extending the electrical conductors through the wellhead.
  • Flexible braided fitting 107 is threaded into wellhead at 105 and provides a cover for the three conductors extending through the penetrator 103 where it is threaded 111 into a collar or reducer 109 affixed to an aluminum sleeve 113 that encloses the conductors extending from the wellhead 101 .
  • Each conductor splice is enclosed in a boot 115 formed from polytetrafluoroethylene (PTFE) in a manner well known to those skilled in this art.
  • the aluminum sleeve 113 in this embodiment encloses a second sleeve 117 , at connection 121 .
  • the second sleeve 117 encloses the conductors 127 from the surface which are retained in the second sleeve 117 by screws 123 .
  • the surface shielded conductor 125 is affixed within the blanking plate or cap 119 sized or perforated to allow natural aspiration of the interior of the aluminum sleeve 113 and telescoping second sleeve 117 .
  • FIG. 2 An alternative embodiment of this disclosure is disclosed in FIG. 2 where the three conductors are cold-shrink boots 216 covered at the stripped ends of the three surface conductors 227 . All other features of FIG. 1 apply to the alternative embodiment of FIG. 2 .
  • the telescoping sleeves 113 , 117 of FIG. 1 and 213 , 217 of FIG. 2 could be fabricated from any non-ferromagnetic metal available without departing from this disclosure.
  • a single sleeve 313 with reducer collar 309 can enclose the surface cables 327 with the PTFE boots or sleeves 315 and is sealed at the bottom perforated blanking plate 319 with cap head screws 323 affixed to the surface shielded conductor 325 .
  • this single sleeve operates in the same manner as the two-piece telescoping sleeves of FIGS. 1 and 2 .
  • the wellhead penetrator connection 403 through 401 is connected through flexible connector 407 to reducer 409 providing a single sleeve 413 allowing cold-shrink boots or sleeves 416 to incorporate the splices between the wellhead penetrator conductors to the surface connections 427 enclosed within the shielded cable 425 and entering the single sleeve 413 sealed by connection 423 , fixed by perforated blanking plate 429 .
  • These embodiments allow the connection to be accomplished with minimal time and effort.
  • the single sleeves 313 , 413 can be fabricated from any non-ferromagnetic metal without departing from the disclosure made herein.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

An economical connection to the electrical conductors extending from a wellhead penetrator is disclosed allowing several forms of connection using a flexible fitting attached to the wellhead enclosing the conductors extending out of the wellhead and allowing the connection to the surface conductors. Because of the flexibility of the braided fitting attached to the tubular connector sleeve, the splice of the electrical conductors can be accomplished quickly and efficiently.

Description

    FIELD OF INVENTION
  • This invention is an electrical connection; more specifically, this device connects electrical conductors coming from a wellhead penetrator to a surface conductor through a flexible braided fitting connected to a tubular connector sleeve, allowing natural aspiration at its distal end, while enclosing one or more splice boots which can be fabricated from polytetrafluoroethylene (PTFE) or cold wrapped connections.
    • BACKGROUND INFORMATION
  • Electrical conductors that extend from a wellhead are normally placed into affixed covers designed to avoid entanglement with other portions of the wellhead. In many situations, being able to quickly connect the surface electrical conductors is desired. The present surface wellhead electrical connection allows a rapid connection of electrical conductors extending from a penetrator through a wellhead to surface electrical conductors. The PTFE boots described herein are more fully described in the PCT Application for the Power Cable Splice Sleeve and Method of Installation no. PCT/US2013/048,240 filed 27 Jun. 2013, which is incorporated by reference as if fully copied herein for all purposes.
  • This application also claims priority back to the Non-Provisional Application No. 61/869,650 filed 23 Aug. 2013.
    • SUMMARY OF INVENTION
  • This surface wellhead connection is comprised of a flexible braided fitting having external threads on both ends for connection on one end to a wellhead and on the other end to a reducer connected to a tubular connector sleeve enclosing a plurality of electrical conductors extending from the wellhead. Surface electrical conductors connected to a surface conduit extend from a blanking cap which is sized or perforated to allow natural aspiration of the interior of the tubular connector sleeve and an insulating boot surrounds and protects each splice of the electrical conductors.
  • The tubular connector sleeve can be formed from one tubular member or from two telescoping tubular members. When formed from two telescoping members, the tubular sleeve can be connected with screws. The spliced insulated electrical conductors are retained in a boot, which can be formed from polytetrafluoroethylene (PTFE) or polyether ether ketone (PEEK).
  • The PTFE boot can be fabricated with two or three threaded connections. Alternatively, each insulated electrical conductors could be retained in a cold-shrink boot.
    • DESCRIPTION OF DRAWINGS
  • FIG. 1 is a cross-sectional view of one embodiment of the surface connector apparatus utilizing PTFE boots connecting the penetrator electrical conductors to the surface conductors in a two-piece surface sleeve.
  • FIG. 2 is a cross-sectional view of another embodiment of the surface connector apparatus utilizing cold shrink for each of the three electrical conductors exiting through the penetrator to the surface electrical conductors in a two-piece surface sleeve.
  • FIG. 3 is a cross-sectional view of yet another embodiment of the surface connector apparatus utilizing a two-piece PTFE boot connecting the penetrator electrical conductors to the surface conductors in a one-piece surface sleeve.
  • FIG. 4 is a cross-sectional view of another embodiment of the surface connector apparatus utilizing cold shrink for each of the three electrical conductors exiting through the penetrator to the surface electrical conductors in a one-piece surface sleeve.
    •  DETAILED DESCRIPTION
  • As shown in FIG. 1, the present invention relates to a method of splicing a set of conductors extending from a wellhead to a complementary set of electrical conductors at the surface. A wellhead 101 encloses a penetrator 103 extending the electrical conductors through the wellhead. Flexible braided fitting 107 is threaded into wellhead at 105 and provides a cover for the three conductors extending through the penetrator 103 where it is threaded 111 into a collar or reducer 109 affixed to an aluminum sleeve 113 that encloses the conductors extending from the wellhead 101. Each conductor splice is enclosed in a boot 115 formed from polytetrafluoroethylene (PTFE) in a manner well known to those skilled in this art. The aluminum sleeve 113 in this embodiment encloses a second sleeve 117, at connection 121. The second sleeve 117 encloses the conductors 127 from the surface which are retained in the second sleeve 117 by screws 123. The surface shielded conductor 125 is affixed within the blanking plate or cap 119 sized or perforated to allow natural aspiration of the interior of the aluminum sleeve 113 and telescoping second sleeve 117.
  • An alternative embodiment of this disclosure is disclosed in FIG. 2 where the three conductors are cold-shrink boots 216 covered at the stripped ends of the three surface conductors 227. All other features of FIG. 1 apply to the alternative embodiment of FIG. 2. The telescoping sleeves 113, 117 of FIG. 1 and 213, 217 of FIG. 2 could be fabricated from any non-ferromagnetic metal available without departing from this disclosure.
  • Similarly, as shown in FIG. 3, a single sleeve 313 with reducer collar 309 can enclose the surface cables 327 with the PTFE boots or sleeves 315 and is sealed at the bottom perforated blanking plate 319 with cap head screws 323 affixed to the surface shielded conductor 325. In all other aspects, this single sleeve operates in the same manner as the two-piece telescoping sleeves of FIGS. 1 and 2.
  • Alternatively, as shown in FIG. 4, the wellhead penetrator connection 403 through 401 is connected through flexible connector 407 to reducer 409 providing a single sleeve 413 allowing cold-shrink boots or sleeves 416 to incorporate the splices between the wellhead penetrator conductors to the surface connections 427 enclosed within the shielded cable 425 and entering the single sleeve 413 sealed by connection 423, fixed by perforated blanking plate 429. These embodiments allow the connection to be accomplished with minimal time and effort. In FIGS. 3 and 4, the single sleeves 313, 413 can be fabricated from any non-ferromagnetic metal without departing from the disclosure made herein.

Claims (8)

What is claimed is:
1. A surface wellhead connection comprising:
a flexible braided fitting having threads on both ends for connection on one end to a wellhead and on the other end to a reducer connected to a tubular connector sleeve enclosing a plurality of electrical conductors extending from the wellhead;
a plurality of surface electrical conductors extending from a blanking cap connected to a surface conduit, said blanking cap allows natural aspiration of the interior of the tubular connector sleeve; and,
an insulating boot surrounding each splice of the electrical conductors.
2. The surface wellhead connection of claim 1 wherein the tubular connector sleeve is formed from one tubular member.
3. The surface wellhead connection of claim 1 wherein the tubular connector sleeve is formed from two telescoping tubular members.
4. The surface wellhead connection of claim 3 wherein the tubular connector sleeve is formed from two telescoping tubular members connected with screws.
5. The surface wellhead connection of claim 1 wherein the spliced insulated electrical conductors are retained in a boot.
6. The surface wellhead connection of claim 5 wherein the boot is composed of polytetrafluoroethylene.
7. The surface wellhead connection of claim 1 wherein each insulated electrical conductors is retained in a cold-shrink boot.
8. The surface wellhead connection of claim 6 wherein the polytetrafluoroethylene boot is composed of two threaded connections.
US14/466,166 2013-08-23 2014-08-22 Surface wellhead electrical connection and method of use Abandoned US20150053392A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/466,166 US20150053392A1 (en) 2013-08-23 2014-08-22 Surface wellhead electrical connection and method of use

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361869650P 2013-08-23 2013-08-23
US14/466,166 US20150053392A1 (en) 2013-08-23 2014-08-22 Surface wellhead electrical connection and method of use

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US20150053392A1 true US20150053392A1 (en) 2015-02-26

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CO (1) CO7170024A1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180274320A1 (en) * 2015-09-22 2018-09-27 Yadira Cardona Aguirre Safety sealing and reparation device and method for electrical cables that pass through wellheads

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253618A (en) * 1963-10-28 1966-05-31 Raychem Corp Reinforced article and process
US3518600A (en) * 1969-02-04 1970-06-30 Mc Graw Edison Co Protector for electric circuits
US5289882A (en) * 1991-02-06 1994-03-01 Boyd B. Moore Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas
US7405358B2 (en) * 2006-10-17 2008-07-29 Quick Connectors, Inc Splice for down hole electrical submersible pump cable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3253618A (en) * 1963-10-28 1966-05-31 Raychem Corp Reinforced article and process
US3518600A (en) * 1969-02-04 1970-06-30 Mc Graw Edison Co Protector for electric circuits
US5289882A (en) * 1991-02-06 1994-03-01 Boyd B. Moore Sealed electrical conductor method and arrangement for use with a well bore in hazardous areas
US7405358B2 (en) * 2006-10-17 2008-07-29 Quick Connectors, Inc Splice for down hole electrical submersible pump cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180274320A1 (en) * 2015-09-22 2018-09-27 Yadira Cardona Aguirre Safety sealing and reparation device and method for electrical cables that pass through wellheads
US10801290B2 (en) * 2015-09-22 2020-10-13 Yadira Cardona Aguirre Safety sealing and reparation device and method for electrical cables that pass through wellheads

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Publication number Publication date
ECSMU14015306U (en) 2015-08-31
CO7170024A1 (en) 2015-01-28

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AS Assignment

Owner name: DICKINSON, MOIRA, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EMERSON, TOD;WILLIAMS, JIM;HALBERT, ROBERT K;REEL/FRAME:035268/0015

Effective date: 20140905

AS Assignment

Owner name: QUICK CONNECTORS, INC., TEXAS

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE PREVIOUSLY RECORDED AT REEL: 035268 FRAME: 0015. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNORS:EMERSON, TOD D;WILLIAMS, JIM;HALBERT, ROBERT K;REEL/FRAME:035357/0348

Effective date: 20140905

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION