US3638732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater wellhead electric connection apparatus for submerged electric motor driven well pumps and method of installation
Assignee: Vetco Gray LLC
•
Filing: 1970-01-12
•
Granted: 1972-02-01
•
Expires: 1990-01-12
Abstract
Abstract An underwater bottom hole electrically driven well pump has an electric power cable extending to the wellhead, a connectable and disconnectable electrical connection being provided at the wellhead between the cable and the power cable adapted to extend to a power source, the connection being disconnectable and connectable at the wellhead to permit the pump to be pulled from the well, or run back into the well, through the wellhead and production tree without necessitating removal of the wellhead and production tree.
Inventors
- 👤 Fritz R Huntsinger
- 👤 James W E Hanes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:08
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/0407; E21B17/00; E21B17/02; E21B17/023; E21B17/028; E21B17/0285; E21B33/035; E21B43/00; E21B43/12; E21B43/121; E21B43/128
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
149 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; coengaging orienting means on said landing head and hanger means placing said first electric conductor means in a position aligned with said second electric conductor means; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means.
Claim 2
Dependent Claim
149 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; coengaging orienting means on said landing head and hanger means placing said first electric conductor means in a position aligned with said second electric conductor means; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means.
Claim 3
Dependent Claim
60 words
In apparatus as defined in claim 1; said support being mounted in said hanger means and shiftable therein in one direction to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 4
Dependent Claim
56 words
In apparatus as defined in claim 1; said support being shiftable into said landing head to contact said second terminal with said first terminal and out of said landing head to disconnect said second terminal from aid first terminal and to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 5
Dependent Claim
75 words
In apparatus as defined in claim 1; said landing head being movable longitudinally of said hanger means into and out of said hanger means; said support being shiftable longitudinally into said landing head to contaCt said second terminal with aid first terminal and longitudinally out of said landing head to disconnect said second terminal from said first terminal and to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 6
Dependent Claim
59 words
In apparatus as defined in claim 1; said support being shiftable longitudinally of aid landing head in one direction to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 7
Dependent Claim
30 words
In apparatus as defined in claim 1; and means for preventing fluid from passing to said first and second terminals when said terminals are in full contact with each other.
Claim 8
Dependent Claim
28 words
In apparatus as defined in claim 1; and means for placing said landing head in a predetermined position within said hanger means to insure alignment between said terminals.
Claim 9
Dependent Claim
195 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to aid landing head to permit withdrawal of said landing head from said hanger means; said hanger means having a longitudinal passage in which said landing head is supported; said support being mounted in said hanger means and shiftable therein in one direction laterally of said passage and into said passage to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means completely from said passage.
Claim 10
Dependent Claim
195 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to aid landing head to permit withdrawal of said landing head from said hanger means; said hanger means having a longitudinal passage in which said landing head is supported; said support being mounted in said hanger means and shiftable therein in one direction laterally of said passage and into said passage to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means completely from said passage.
Claim 11
Dependent Claim
153 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means; and coengaging means on said landing head and hanger means for turning said landing head to a predetermined angular position in said hanger means to insure alignment between said terminals.
Claim 12
Dependent Claim
153 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; first electric conductor means in said landing head having a first terminal; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means; and coengaging means on said landing head and hanger means for turning said landing head to a predetermined angular position in said hanger means to insure alignment between said terminals.
Claim 13
Dependent Claim
79 words
In apparatus as defined in claim 9; said hanger means having a longitudinal passage in which aid landing head is supported; said support being mounted in said hanger means and shiftable therein in one direction laterally of said passage and into said passage to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from aid first terminal and to remove said support and second conductor means completely from said passage.
Claim 14
Dependent Claim
174 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; a first cable carried by and depending from said landing head, said cable having one or more first electric conductors, each conductor haVing a first terminal, dielectric material in said head insulating said one or more conductors from said head; a support shiftable into and from operative relation to said landing head; a second cable extending from said support, said second cable having one or more second electric conductors, each second conductor having a second terminal, dielectric material in said support insulating said one or more second conductors from said support; shifting of said support toward said landing head contacting said one or more second terminals with said one or more first terminals; said support and second electric conductors being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means.
Claim 15
Dependent Claim
174 words
In apparatus for conducting electric current to an electrically operated subsurface device disposed in a well bore: hanger means at the top of the well bore; a landing head removably supported in said hanger means; a first cable carried by and depending from said landing head, said cable having one or more first electric conductors, each conductor haVing a first terminal, dielectric material in said head insulating said one or more conductors from said head; a support shiftable into and from operative relation to said landing head; a second cable extending from said support, said second cable having one or more second electric conductors, each second conductor having a second terminal, dielectric material in said support insulating said one or more second conductors from said support; shifting of said support toward said landing head contacting said one or more second terminals with said one or more first terminals; said support and second electric conductors being movable from obstructing relation to said landing head to permit withdrawal of said landing head from said hanger means.
Claim 16
Dependent Claim
48 words
In apparatus as defined in claim 11; and coengaging means on said landing head and hanger means for turning said landing head to a predetermined angular position in said hanger means to insure alignment between said one or more first terminals and said one or more second terminals.
Claim 17
Dependent Claim
88 words
In apparatus as defined in claim 11; said hanger means having a longitudinal passage in which said landing head is supported; said landing head having a cavity therein into which said support is movable to contact said one or more second terminals with said one or more first terminals, said support being withdrawable from said cavity to remove said one or more second terminals from contact with said one or more first terminals and from said cavity to permit withdrawal of said landing head from said hanger means.
Claim 18
Dependent Claim
110 words
In apparatus as defined in claim 11; said hanger means having a longitudinal passage in which said landing head is supported; said landing head having a cavity therein, said cavity axis extending laterally of the axis of said passage; said support being shiftable on said hanger means laterally of said passage and into and from said passage and cavity to selectively contact said one or more second terminals with said one or more first terminals or to remove said one or more second terminals from contact with said one or more first terminals and said support from said passage to permit withdrawal of said landing head from said hanger means.
Claim 19
Dependent Claim
127 words
In apparatus as defined in claim 11; said hanger means having a longitudinal passage in which said landing head is supported; said landing head having a cavity therein, said cavity axis extending laterally of the axis of said passage; said support being shiftable and said hanger means laterally of said passage and into and from said passage and cavity to selectively contact said one or more second terminals with said one or more first terminals or to remove said one or more second terminals from contact with said one or more first terminals and said support from said passage to permit withdrawal of said landing head from said hanger means; and means for shifting said support on said hanger means into and from said passage and cavity.
Claim 20
Dependent Claim
155 words
In apparatus as defined in claim 11; said hanger means having a longitudinal passage in which said landing head is supported; said landing head having a cavity therein, said cavity axis extending laterally of the axis of said passage; said support being shiftable on said hanger means laterally of said passage and into and from said passage and cavity to selectively contact said one or more second terminals with said one or more first terminals or to remove said one or more second terminals from contact with said one or more first terminals and said support from said passage to permit withdrawal of said landing head from said hanger means; and means for shifting said support on said hanger means into and from said passage and cavity; said shifting means comprising a nut coupled to said support and threaded on said hanger means, whereby rotation of said nut feeds said support laterally of said passage.
Claim 21
Dependent Claim
152 words
In apparatus adapted for use in a well bore having a tubular string therein: an electrically operated subsurface device adapted to be set in the tubular string; hanger means at the top of the well bore; a landing head removably supported in said hanger means; a first electric conductor means extending from said device to said landing head and having a first terminal in said landing head; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head, first conductor means and subsurface device from the well bore and hanger means.
Claim 22
Dependent Claim
152 words
In apparatus adapted for use in a well bore having a tubular string therein: an electrically operated subsurface device adapted to be set in the tubular string; hanger means at the top of the well bore; a landing head removably supported in said hanger means; a first electric conductor means extending from said device to said landing head and having a first terminal in said landing head; a support shiftable into and from operative relation to said landing head; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to movement of said support relative to said landing head; said shiftable support and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head, first conductor means and subsurface device from the well bore and hanger means.
Claim 23
Dependent Claim
61 words
In apparatus as defined in claim 17; said support being mounted in said hanger means and shiftable therein in one direction to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 24
Dependent Claim
79 words
In apparatus as defined in claim 17; said hanger means having a longitudinal passage in which said landing head is supported; said support being mounted in said hanger means and shiftable therein in one direction laterally of said passage and into said passage to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means completely from said passage.
Claim 25
Dependent Claim
75 words
In apparatus as defined in claim 17; said landing head being movable longitudinally of said hanger means into and out of said hanger means; said support being shiftable longitudinally into said landing head to contact said second terminal with said first terminal and longitudinally out of said landing head to disconnect said second terminal from said first terminal and to remove said support and second conductor means from said obstructing relation to said landing head.
Claim 26
Dependent Claim
109 words
In apparatus as defined in claim 17; said hanger means having a longitudinal passage in which said landing head is supported; said support being mounted in said hanger means and shiftable therein in one direction laterally of said passage and into said passage to contact said second terminal with said first terminal and in the opposite direction to disconnect said second terminal from said first terminal and to remove said support and second conductor means completely from said passage; and coengaging means on said landing head and hanger means for turning said landing head to a predetermined angular position in said hanger means to insure alignment between said terminals.
Claim 27
Dependent Claim
43 words
In apparatus as defined in claim 17; and means providing a releasable connection between said first conductor means and subsurface device to separate said first conductor means from said device in response to a predetermined tensile pull taken on said first conductor means.
Claim 28
Dependent Claim
16 words
In apparatus as defined in claim 17; wherein said subsurface device is an electrically driven pump.
Claim 29
Dependent Claim
169 words
In apparatus adapted for use in a well bore having a casing string therein: hanger means at the top of the well bore; a landing head removably supported in said hanger means; a tubing string secured to and depending from said landing head and disposed within the casing string; an electrically operated subsurface device in said tubing string; first electric conductor means connected to said subsurface device and extending upwardly therefrom and externally of the tubing string to said landing head, said conductor means having a first terminal in said landing head; a support; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to longitudinal movement of said support relative to said landing head; said sUpport and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head, tubing string, subsurface device and first conductor means from the well bore and hanger means.
Claim 30
Dependent Claim
169 words
In apparatus adapted for use in a well bore having a casing string therein: hanger means at the top of the well bore; a landing head removably supported in said hanger means; a tubing string secured to and depending from said landing head and disposed within the casing string; an electrically operated subsurface device in said tubing string; first electric conductor means connected to said subsurface device and extending upwardly therefrom and externally of the tubing string to said landing head, said conductor means having a first terminal in said landing head; a support; second electric conductor means carried by said support and having a second terminal adapted to be brought into and from contact with said first terminal in response to longitudinal movement of said support relative to said landing head; said sUpport and second conductor means being movable from obstructing relation to said landing head to permit withdrawal of said landing head, tubing string, subsurface device and first conductor means from the well bore and hanger means.
Claim 31
Dependent Claim
14 words
In apparatus as defined in claim 24; wherein said subsurface device is a pump.
Claim 32
Independent Claim
199 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being movable into the landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support and second cable from the landing head to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
Claim 33
Independent Claim
199 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being movable into the landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support and second cable from the landing head to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
Claim 34
Independent Claim
158 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; engaging orienting means on said landing head with companion orienting means on said hanger to insure predetermined angular positioning of said landing head and said first terminal in said hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal.
Claim 35
Independent Claim
158 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; engaging orienting means on said landing head with companion orienting means on said hanger to insure predetermined angular positioning of said landing head and said first terminal in said hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal.
Claim 36
Independent Claim
217 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being moved laterally into the axial bore and landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support laterally from the landing head and completely from the hanger bore to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
Claim 37
Independent Claim
217 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electric cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being moved laterally into the axial bore and landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support laterally from the landing head and completely from the hanger bore to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
Claim 38
Independent Claim
201 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electriC cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being moved longitudinally into the landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support and second cable longitudinally from the landing head to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
Claim 39
Independent Claim
201 words
The method of installing or removing electric conducting means at a well bore location for use with an electrically operated subsurface device disposed in the well bore, a hanger being located at the top of the well bore, comprising securing the lower end of a first electriC cable to the subsurface device and its upper end to a landing head, said cable having a first terminal, lowering the landing head, electric cable and subsurface device until the subsurface device with the cable attached thereto is located in a desired position in the well bore and with the landing head seating on the hanger; and moving a support carrying a second cable having a second terminal into said landing head to contact said second terminal with said first terminal; the landing head seating in an axial bore in the hanger, the support being moved longitudinally into the landing head to a position preventing elevation of said landing head from the hanger bore, and withdrawing the support and second cable longitudinally from the landing head to disconnect the second terminal from the first terminal and permit upward elevation of said landing head, first cable and subsurface device from the well bore and hanger.
References Cited (Backward Citations)
US2500305A
Cited
US2963090A
Cited
US3045099A
Cited
US3339632A
Cited
US3387657A
Cited
US3516492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |