WO1992014029A1 - Apparatus for carrying out subsea wireline operations - Google Patents

Apparatus for carrying out subsea wireline operations Download PDF

Info

Publication number
WO1992014029A1
WO1992014029A1 PCT/GB1992/000200 GB9200200W WO9214029A1 WO 1992014029 A1 WO1992014029 A1 WO 1992014029A1 GB 9200200 W GB9200200 W GB 9200200W WO 9214029 A1 WO9214029 A1 WO 9214029A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireline
feed tube
housing
pulley
subsea
Prior art date
Application number
PCT/GB1992/000200
Other languages
French (fr)
Inventor
James Arthur Graser
Original Assignee
Subsea Well Services Limited
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 Subsea Well Services Limited filed Critical Subsea Well Services Limited
Publication of WO1992014029A1 publication Critical patent/WO1992014029A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B33/068—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells
    • E21B33/076—Well heads; Setting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/04—Measuring depth or liquid level

Definitions

  • This invention relates to wireline apparatus.
  • wireline apparatus for subsea use, comprising a feed tube sealingly engageable with a subsea wellhead so that the interior of the feed tube communicates in use with a subsea drill hole, a wireline extending within the feed tube and having means for receiving a tool to be transported into the drill hole, a housing whose interior communicates sealingly with the interior of the feed tube, the housing and the feed tube forming parallel arms of an inverted U-shaped passageway, a winch mechanism disposed within the housing and having a portion of the wireline secured thereto, a sealing cap in sealing engagement with the housing, means for releasing the sealing cap from the housing, connection means on the sealing cap for attachment of lifting means thereto, and a pulley mounted on the sealing cap and around which the wireline passes.
  • wireline apparatus for subsea use, comprising a feed tube sealingly e ⁇ gageable with a subsea wellhead so that the interior of the feed tube communicates in use with a subsea drill hole, a wireline extending within the feed tube and having means for receiving a tool to be transported into the drill hole, a housing whose interior communicates sealingly with the interior of the feed tube, a winch mechanism disposed within the housing and having a portion of the wireline secured thereto, the feed tube and the housing being connected and arranged so that the wireline extends through the side wall of the feed tube at an angle to the axis of the feed tube and thence extends within the feed tube in a direction along the feed tube.
  • the wireline passes around a pulley within the feed tube, and preferably also the pulley is coupled with a depth meter in the form of a magnetic drive coupling which may be connected to an optical encoder for measuring the length of the wireline which has passed over the pulley and into the drill hole.
  • a depth meter in the form of a magnetic drive coupling which may be connected to an optical encoder for measuring the length of the wireline which has passed over the pulley and into the drill hole.
  • a weight indicator is provided in the form of a shear pin for measuring the weight on the wireline.
  • Fig. 1 is a side sectional view of an upper
  • Fig. 2 is a section through the line A-A of Fig.l
  • Fig. 3 is a front section of a conductor wire winch of the wireline system of this embodiment
  • Fig. 4 is a side sectional view of Fig. 3
  • Fig. 5 is a front view of the wire entry into the lubricator tube in accordance with the present invention
  • Fig. 6 is a front view of the wireline system of this embodiment of the present invention.
  • a lubricator head 10 comprises a housing 11, a shear pin weight indicator 12, a support bar 14 extending down from said weight indicator 12, and a bolt 16 securing to said support bar 14 two further support members 18, 20, said support members 18, 20 being connected to a measuring wheel or pulley 22 by way of an axle 24 centrally extending through the pulley 22.
  • Carried on said axle 24 is a first portion 26 of a magnetic drive coupling a second portion 28 of which is located in face-to-face relationship with the first portion 26.
  • the second portion 28 is connection to an optical encoder 30.
  • the first support member 18 is in the form of a bar extending just beyond the axle 24 and the second support member 20 is in the form of a plate extending into a lower part of the lubricator head 10.
  • Two sets of guide wheels 32, 34 are mounted on the plate 20.
  • the lubricator head 10 also includes a pressure transducer 36.
  • a wire winch mechanism 40 disposed within a housing 41 comprises a viewing hatch 42, a drive motor 44, a slip ring assembly 46 a wireline drum 48 and a spooler 50.
  • a housing 52 extends from the winch mechanism 40 and engages a wall 56 forming the lubricator 54.
  • a wear bushing 58 held by mounting brackets 60 is fixed inside the lubricator 54.
  • a tool 66 to be inserted into the drill hole.
  • the tool 66 is attached to a tool-connecting socket 64 at one end of a wire or cable 62.
  • the wire 62 extends through the housing 52 and into the lubricator 54 at an angle.
  • the wear bushing 58 redirects the wire 62 so that it is parallel to the axis of the lubricator 54.
  • the wire 62 then extends over the guide wheels 32, around the pulley 22 and over the second set of guide wheels to connect to the tool 66.
  • the wire 62 is paid out from the drum 48 to move the tool 66 down into the drill hole.
  • the shear pin weight indicator 12 is of known design and operates by detecting a bending of the pin between fixed end supports.
  • the central portion of the pin is connected to the pulley 22 via the support bar 14.
  • An indication of the depth of the tool 66 in the drill hole is determined by use of the magnetic drive coupling 26, 28 and the optical encoder 30.
  • On rotation of the pulley 22 one portion 26 of the magnetic drive coupling, in the form of a dipole magnet located in the axle 24, is also rotated.
  • the second portion of the magnetic drive coupling 28 is positioned in a parallel plane to and at a short distance away from said first portion 26 and is also formed as a dipole magnet, and this has rotation induced in it by rotation of the pulley 22 and said first portion 26.
  • Said second portion 28 is connected to an optical encoder 30 which gives reading of the number of rotations of the said second portion of the magnetic drive coupling.
  • the number of the rotations is directly proportional to the length of wire 62 which has passed over the pulley 22, therefore an indicator of depth of the tool 66 can be determined.
  • the wireline 62 enters the lubricator 54 close to the winch, allowing sections of the lubricator 54 to be connected or disconnected without disconnecting the tool-connecting socket 64 from the end of the wire 62.
  • the lubricator 54 can be made from standard pipe.

Abstract

Wireline apparatus for subsea use, comprising a wireline, a winch and a feed tube which communicates sealingly with a wellhead and a housing. The wireline and the winch are substantially enclosed within the housing the wireline extends through a sidewall of the feed tube at an acute angle to the axis of the feed tube.

Description

Apparatus for carrying out subsea wirel ine operations.
This invention relates to wireline apparatus.
In Patent Specification 2,152,979B wireline apparatus comprises wireline apparatus for subsea use, comprising a feed tube sealingly engageable with a subsea wellhead so that the interior of the feed tube communicates in use with a subsea drill hole, a wireline extending within the feed tube and having means for receiving a tool to be transported into the drill hole, a housing whose interior communicates sealingly with the interior of the feed tube, the housing and the feed tube forming parallel arms of an inverted U-shaped passageway, a winch mechanism disposed within the housing and having a portion of the wireline secured thereto, a sealing cap in sealing engagement with the housing, means for releasing the sealing cap from the housing, connection means on the sealing cap for attachment of lifting means thereto, and a pulley mounted on the sealing cap and around which the wireline passes.
However this apparatus requires the feed tube to be custom built in a manner incorporating the housing, or else involves difficulty in connecting and disconnecting additional sections of feed tube to alter its length.
According to the present invention there is provided wireline apparatus for subsea use, comprising a feed tube sealingly eπgageable with a subsea wellhead so that the interior of the feed tube communicates in use with a subsea drill hole, a wireline extending within the feed tube and having means for receiving a tool to be transported into the drill hole, a housing whose interior communicates sealingly with the interior of the feed tube, a winch mechanism disposed within the housing and having a portion of the wireline secured thereto, the feed tube and the housing being connected and arranged so that the wireline extends through the side wall of the feed tube at an angle to the axis of the feed tube and thence extends within the feed tube in a direction along the feed tube.
Preferably, the wireline passes around a pulley within the feed tube, and preferably also the pulley is coupled with a depth meter in the form of a magnetic drive coupling which may be connected to an optical encoder for measuring the length of the wireline which has passed over the pulley and into the drill hole.
Preferably, a weight indicator is provided in the form of a shear pin for measuring the weight on the wireline.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings in which:-
Fig. 1 is a side sectional view of an upper
SUBSTITUTE SH portion of a wireline system in accordance with the present invention; Fig. 2 is a section through the line A-A of Fig.l; Fig. 3 is a front section of a conductor wire winch of the wireline system of this embodiment; Fig. 4 is a side sectional view of Fig. 3; Fig. 5 is a front view of the wire entry into the lubricator tube in accordance with the present invention; and Fig. 6 is a front view of the wireline system of this embodiment of the present invention.
Referring to Figs 1 and 2, a lubricator head 10 comprises a housing 11, a shear pin weight indicator 12, a support bar 14 extending down from said weight indicator 12, and a bolt 16 securing to said support bar 14 two further support members 18, 20, said support members 18, 20 being connected to a measuring wheel or pulley 22 by way of an axle 24 centrally extending through the pulley 22. Carried on said axle 24 is a first portion 26 of a magnetic drive coupling a second portion 28 of which is located in face-to-face relationship with the first portion 26. The second portion 28 is connection to an optical encoder 30. The first support member 18 is in the form of a bar extending just beyond the axle 24 and the second support member 20 is in the form of a plate extending into a lower part of the lubricator head 10. Two sets of guide wheels 32, 34 are mounted on the plate 20. The lubricator head 10 also includes a pressure transducer 36. Referring now to Figs 3 to 6, a wire winch mechanism 40 disposed within a housing 41 comprises a viewing hatch 42, a drive motor 44, a slip ring assembly 46 a wireline drum 48 and a spooler 50. A housing 52 extends from the winch mechanism 40 and engages a wall 56 forming the lubricator 54. A wear bushing 58 held by mounting brackets 60 is fixed inside the lubricator 54. Also, inside the lubricator 54 and on the opposite side from the wear bushing 58 and mounting brackets 60 is a tool 66 to be inserted into the drill hole. The tool 66 is attached to a tool-connecting socket 64 at one end of a wire or cable 62.
In use the drive motor 44 and the slip ring assembly 46 are essentially the same as used in the apparatus described in Patent Specification 2,152,979B.
The wire 62 extends through the housing 52 and into the lubricator 54 at an angle. The wear bushing 58 redirects the wire 62 so that it is parallel to the axis of the lubricator 54. The wire 62 then extends over the guide wheels 32, around the pulley 22 and over the second set of guide wheels to connect to the tool 66. On actuation of the motor 44 the wire 62 is paid out from the drum 48 to move the tool 66 down into the drill hole.
The shear pin weight indicator 12 is of known design and operates by detecting a bending of the pin between fixed end supports. The central portion of the pin is connected to the pulley 22 via the support bar 14. An indication of the depth of the tool 66 in the drill hole is determined by use of the magnetic drive coupling 26, 28 and the optical encoder 30. On rotation of the pulley 22 one portion 26 of the magnetic drive coupling, in the form of a dipole magnet located in the axle 24, is also rotated. The second portion of the magnetic drive coupling 28 is positioned in a parallel plane to and at a short distance away from said first portion 26 and is also formed as a dipole magnet, and this has rotation induced in it by rotation of the pulley 22 and said first portion 26. Said second portion 28 is connected to an optical encoder 30 which gives reading of the number of rotations of the said second portion of the magnetic drive coupling. The number of the rotations is directly proportional to the length of wire 62 which has passed over the pulley 22, therefore an indicator of depth of the tool 66 can be determined.
Advantages of this system are that the wireline 62 enters the lubricator 54 close to the winch, allowing sections of the lubricator 54 to be connected or disconnected without disconnecting the tool-connecting socket 64 from the end of the wire 62. The lubricator 54 can be made from standard pipe. When the tool 66 is to be changed, the apparatus is now lifted as a whole, by application of a lifting mechanism from the surface.
Modifications and improvements may be incorporated without departing from the scope of the invention.

Claims

1. Wireline apparatus for subsea use, comprising a feed tube sealingly engageable with a subsea wellhead so that the interior of the feed tube communicates in use with a subsea drill hole, a wireline extending within the feed tube and having means for receiving a tool to be transported into the drill hole, a housing whose interior communicates sealingly with the interior .of the feed tube, a winch mechanism disposed within the housing and having a portion of the wireline secured thereto, the feed tube and the housing being connected and arranged so that the wireline extends through the side wall of the feed tube at an angle to the axis of the feed tube and thence extends within the feed tube in a direction along the feed tube.
2. Wireline apparatus as claimed in Claim 1, wherein the angle between the wireline and the axis of the feed tube is acute.
3. Wireline apparatus as claimed in Claims 1 or 2, wherein the wireline is guided within the feed tube by guide means.
4. Wireline apparatus as claimed in Claims 1, 2 or 3, wherein the wireline passes around a pulley within the feed tube.
5. Wireline apparatus as claimed in Claim 4, wherein the pulley is coupled with a depth meter.
6. Wireline apparatus as claimed in Claim 5, wherein
SUBSTITUTE SHEET the depth meter is in the form of a magnetic drive coupling.
7. Wireline apparatus as claimed in Claims 5 or 6, wherein the depth meter is connected to an optical encoder.
8. Wireline apparatus as claimed in any one of the preceding Claims, wherein a weight indicator is provided.
9. Wireline apparatus as claimed in Claim 8 wherein the weight indicator comprises a shear pin.
PCT/GB1992/000200 1991-02-01 1992-02-03 Apparatus for carrying out subsea wireline operations WO1992014029A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9102173.3 1991-02-01
GB919102173A GB9102173D0 (en) 1991-02-01 1991-02-01 Wireline apparatus

Publications (1)

Publication Number Publication Date
WO1992014029A1 true WO1992014029A1 (en) 1992-08-20

Family

ID=10689360

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000200 WO1992014029A1 (en) 1991-02-01 1992-02-03 Apparatus for carrying out subsea wireline operations

Country Status (3)

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AU (1) AU1191492A (en)
GB (1) GB9102173D0 (en)
WO (1) WO1992014029A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014651A1 (en) * 2000-08-11 2002-02-21 Exxonmobil Upstream Research Company Subsea intervention system
WO2016133401A1 (en) * 2015-02-18 2016-08-25 Optime Subsea Services As Tool for closed well operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810439A (en) * 1955-05-11 1957-10-22 Mccullough Otis Johnson Well head attachment for operating tools in a well under pressure
US3363880A (en) * 1966-11-14 1968-01-16 Schiumberger Technology Corp Cable-feeding apparatus
US3827514A (en) * 1973-06-25 1974-08-06 Weigh Tronix Weight measuring hook block apparatus for cranes
FR2559204A1 (en) * 1984-02-02 1985-08-09 Baker Drilling Equip APPARATUS FOR MEASURING THE DEPTH OF CABLES FOR UNDERGROUND WELLS
GB2152979A (en) * 1984-01-18 1985-08-14 James Arthur Graser Wireline apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810439A (en) * 1955-05-11 1957-10-22 Mccullough Otis Johnson Well head attachment for operating tools in a well under pressure
US3363880A (en) * 1966-11-14 1968-01-16 Schiumberger Technology Corp Cable-feeding apparatus
US3827514A (en) * 1973-06-25 1974-08-06 Weigh Tronix Weight measuring hook block apparatus for cranes
GB2152979A (en) * 1984-01-18 1985-08-14 James Arthur Graser Wireline apparatus
FR2559204A1 (en) * 1984-02-02 1985-08-09 Baker Drilling Equip APPARATUS FOR MEASURING THE DEPTH OF CABLES FOR UNDERGROUND WELLS

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014651A1 (en) * 2000-08-11 2002-02-21 Exxonmobil Upstream Research Company Subsea intervention system
US6488093B2 (en) 2000-08-11 2002-12-03 Exxonmobil Upstream Research Company Deep water intervention system
GB2385872A (en) * 2000-08-11 2003-09-03 Exxonmobil Upstream Res Co Subsea intervention system
US6659180B2 (en) 2000-08-11 2003-12-09 Exxonmobil Upstream Research Deepwater intervention system
GB2385872B (en) * 2000-08-11 2004-06-30 Exxonmobil Upstream Res Co Subsea intervention system
CN1329623C (en) * 2000-08-11 2007-08-01 埃克森美孚上游研究公司 Subsea intervention system
WO2016133401A1 (en) * 2015-02-18 2016-08-25 Optime Subsea Services As Tool for closed well operation
EP3259440A4 (en) * 2015-02-18 2018-10-31 FMC Kongsberg Subsea AS Tool for closed well operation
US10858903B2 (en) 2015-02-18 2020-12-08 Fmc Kongsberg Subsea As Tool and method for closed operation in a subsea well

Also Published As

Publication number Publication date
GB9102173D0 (en) 1991-03-20
AU1191492A (en) 1992-09-07

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