US3602300A - Down-hole installation, recovery, and maintenance tool for wells - Google Patents

Down-hole installation, recovery, and maintenance tool for wells Download PDF

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Publication number
US3602300A
US3602300A US837658A US3602300DA US3602300A US 3602300 A US3602300 A US 3602300A US 837658 A US837658 A US 837658A US 3602300D A US3602300D A US 3602300DA US 3602300 A US3602300 A US 3602300A
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United States
Prior art keywords
housing
pressure vessel
winch drum
drive motor
motor
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Expired - Lifetime
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US837658A
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English (en)
Inventor
Albert P Jaffe
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CBS Corp
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Westinghouse Electric Corp
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Publication date
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    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers

Definitions

  • the present invention is directed to means for performing remedial action down-hole in an oil well such as paraffin cleaning, sand bailing, setting down-hole pressure recorders, setting and removing storm chokes or down-hole well safety valves, etc.
  • remedial action down-hole in an oil well such as paraffin cleaning, sand bailing, setting down-hole pressure recorders, setting and removing storm chokes or down-hole well safety valves, etc.
  • One of the present methods of performing these operations is by the use of a wire line and lubricator unit which comprises a permanent or temporary insertion in the tubing contained in the well of apparatus which is lowered at the end of a steel wire line through a housing called the lubricator.
  • a conventional lubricator unit is coupled to an external motor driven drum and cable unit contained in a separate housing and is coupled by means of a combination of stuffing boxes and pulleys so that the lubricating unit is exposed. to wellhead pressure while the housing containing the motor unit-is sealed only from the outside ambient environment or, in some cases, open to the atmosphere.
  • a. preferred method is to use a remotely controlled subsurface safety-valve, which: is installed in the production tubing string, within a few hundred feetof the sea bottom mud line.
  • a remotely controlled subsurface safety-valve which: is installed in the production tubing string, within a few hundred feetof the sea bottom mud line.
  • Such valves are available in types which can be removed through the tubing string for. periodic preventive maintenance.
  • the shallowlocation of the valve permits easier-access and less costly maintenance.
  • the valve is controlled by hydraulic pressure via the subsea wellhead, and it isdesigned to automatically close in the event .of failure; above the-valveat'thewellhead equipment or subsea flow line, thereby protectingyagainst'uncontrolled spillage.
  • Reliable operation of the subsurface safety valve can be obtained by the intentional'closing, and reopeningat regular intervals and by periodic removaland reinstallation of the-valve. Control of this valve is effected remotely by means" of a hydraulic system incorporated in a removable wellhead module. Removal and reinstallation of this valve isaccomplished by a down-hole maintenance tool temporarily installed.
  • the ball-type safety valve is arranged within a circular sleeve assembly which;is locked into a special tubing nipple by alocking mandrel.
  • a fishing neckto-adaptto running :toolsv adapter to mate with the running or. pulling tool,'a hydraulic jar, a weighted spool, an accelerator, a hydraulic piston and an adapter to attach the cable tool.
  • the wire line cable is connected to the well tool inside of the lubricatorwhich is exposed to .thewellhead pressure.-1Th'e.
  • the subject invention is directed to a down-hole maintenance tool for operations on surface and subsea wells which eliminates the need for stuffing boxes or pressure seals of the wire line between the lubricator unit and the motor driven drum and cable unit housing and comprises an elongated tubular tool housing adapted to contain a well tool as sembly therein and a winch housing directly connected to the upper terminal end ofthe tool housing.
  • the winch housing includes a hydraulic motor, winch drum and wire line coupled to the tool assembly.
  • a valve assembly is connected to the other terminal end of the tubular housing for isolating the tubular housing from the well bore and for venting and bleeding the apparatus during installation and removal. Additionally, a wellhead connector is coupled to the valve assembly for attachment to a wellhead assembly. A socket base for a control pod isattached to the apparatus for coupling hydraulic power and control signals to the hydraulic motor and operating the valve assembly respectively. For subsea "operations, a buoyancy chamber or housing is mated to the tool housing at ,a selected point along its length to provide neutral buoyancy in DESCRIPTION OF THE DRAWlNGS.
  • FIG. 1 is a side elevational view partially in section of the preferred embodiment of the subject invention
  • FIG. 2 is' a schematic illustration of a typical well tool assembly. usedin conjunction with the subject invention
  • HO. 3" is an enlarged vertical sectional view of the upper portion ofthe embodiment shown in FIG. 1;
  • FIG. 4* is ahorizontal cross-sectional view of the upper portion'shown in FIG. 3 taken below top housing cover;
  • FIG. 5 is a fragmentary view of buoyancy housing utilized with'the embodiment shown'in FIG. 1.
  • Reference numeral 10 refers to a subsea wellhead module including-a wellhead housing 12 and a Christmas-tree" assembly 14' connected to the production tubing string 16.
  • A' reentry connection unit including a hub 18 islocated at'the top of the wellhead module 10,for obtaining down-hole access to the well.
  • An elongated tubular housing 20' fora well tool comprises a heavy wall steel pipe with an inside diameter commensurate with the production string diameter and alength which depends on the desired functions.
  • a hub 22 for direct coupling to a mating hub 24 on the lower extremity of a motor and winch housing 26by means of a split clamp 28.
  • the lower end of the housing 20 is provided with a hub 30 similar to the upper hub '221which is provided for connection to a mating hub 32 of a valve assembly 34 including, inter alia, a drain valve 36.
  • split clamp '38 is utiliaed for connecting the hubs 30 and 32.
  • the lower'portion of the drain valve 36 terminates in a hub 40 which mates with a hub 42 of an isolation valve 44. This connection ismade bymeans of the split clamp 46.
  • a relief valve 50 iscoupled1o the isolation valve 44 by means of the split clamp'SZ'connecting the-hubs 54 and 56
  • the wellhead connector assembly 60 provides a means for attachment to the reentry hub 18 on top of the Christmas tree assembly 14 and is provided with hydraulic lines, not shown, to lock and unlock the connector and permit testing of the connector joint seals.
  • the housing 20 is adapted to contain a wellmaintenance tool assembly 64
  • a typical tool assembly is shown schematically in FIG. 2 and comprises, for example, a ball-type tubing safety valve 66, a locking mandrel 68, a running or pulling tool 70, a tool joint adapter 72, a hydraulic jar assembly 74, a weight bar 76, a nitrogen-actuated jar accelerator 78 and a cable connector 80. All of these elements are well known to those skilled in the art and have specified dimensions for being lowered through the tool housing 20 and the valve assembly 34 into the tubing string 16 via the "Christmas tree 14.
  • tubular well tool housing 20 is adapted to couple a plurality of hydraulic lines 82 necessary'to operate the valves 36, 44 and 50 from acontrolled pod, not shown.
  • the hydraulic lines are coupled to a socket base 84 attached to the motor and winch housing 26 and includes a plurality of female hydraulic coupling members86.
  • the Christmas tree valves may be independently operating or when desirable, may be operated by additional hydraulic lines connected to the socket base 86. I 7
  • the isolation valve 44 When the tool assembly 64 is positioned inside of the housing 20 above the drain valve 36, the isolation valve 44 is maintained in a closed position. The portion of the housing 20 above the isolation valve 44 is filled with a hydraulic fluid after the tool assembly 64 has been placed in the housing prior to being brought into the vicinity of the wellhead module 10. The isolation valve 44 prevents this fluid from being lost prior to placement of the embodiment shown in FIG. 1 on the wellhead module including the Christmas tree" 14.
  • the vent valve 50 is opened to prevent a hydraulic lock from forming in the tubing bore.
  • one of the functional objectives of the subject invention is to provide means to position a down-hole ball safety valve in the well rather than using a storm choke, the tool assembly 64 must be able to be lowered approximately 200 feet below the wellhead module 10.
  • a motor driven drum winch and wire line unit located in the winch housing 26 is coupled to the connector 80.
  • a winch drum 88, a wire line 90 spooled thereon as well as a hydraulic drive motor 92 are located on the frame 93 inside of the winch housing 26 whichcommunicates directly with the tool housing 20.
  • the winch 88, the motor 92 and the cable 90 are exposed instead directly to the pressure and fluid environment of the well tubing string 16.
  • the winch housing 26 Since the winch housing 26 is subjected to well pressures in the region of 5000 p.s.i., it is designed to withstand these pressures by the use of cylindrical surfaces such as shown with respect to F IG. 4.
  • the housing comprises an alloy steel casting in the shape of an eccentric reducerpipe fitting the smallend of which is provided with the hub 24 for connection to the hub 22 at the top of the tool housing 20.
  • the upper endof the sealing ring 99 provide the means for securing the cover 96 to the hub 94.
  • a winch drum 88 is mounted on and secured to the radial piston motor housing 100.
  • the shaft 102 is anchored against rotation by means of the bolted clamp assembly 104 attached to the frame 93. By anchoring the shaft against the rotation, the motor housing will rotate about the fixed shaft.
  • a hydraulic supply line 106 is adapted to supply hydraulic fluid to the motor pistons not shown in the housing 100 by means of conduits, not shown, in the shaft 102 while areturn line 108 couples hydraulic fluid out of the motor.
  • Athird hydraulic line 110 is utilized as a motor casing drain.
  • the bearings within the motor housing itself thus serve to support the winch drum.
  • a port adapter not shown, at one end of the stationary shaft 102 can-be utilized for rotation reversal by reversing the direction of flow of the hydraulic fluid in the inlet and exhaust lines 106 and 108.
  • the hydraulic motor 92 is of a conventional design, an example of which is a Rotapowr" motor made by Nissanille industries, Inc., Buffalo, New York.
  • the wire line 90 is coupled to the connector of the tool assembly 64 through a guide 112. Since the interior of the winch housing 26 and the tool housing 20 are at the pressure of the well and since the need for stuffing boxes is removed, the configuration of the wire line can be either a solid wire, a stranded cable, or a flat steel ribbon or tape depending upon the application. A:flat ribbon can be employed since there is no seal through which the steel ribbon must pass.
  • One advantage of the flat steel tape is in its self alignment feature with the. cable guide 112 which also. obviates the need for a levelwind mechanism necessary to wind a wire cable or rope uniformly upon the winch drum 88.
  • the embodiment of the subject invention is installed and removed from the top of the wellhead module 10 by a maintenance unit such as a tethered vehicle, submersible or telechiric device, not shown, designed to handle well maintenance tasks.
  • Hydraulic control of the connection, operation and removal of the apparatus is accomplished from a control point located at the maintenance unit which will also contain the hydraulic power source and control valves required for remote operation of the valve assembly 34 and the hydraulic drive motor 92.
  • the hydraulic power will be transferred from the maintenance unit to the socket base 84 by means of suitable hydraulic tubing and a multiline male connector adapted to make connection with the female coupling members 86.
  • the socket base 84 includes a structural steel bracket welded to the body of the winch housing 26 near the upper end of the tool housing 20.
  • the weight in air of the subject embodiment of the invention is substantial.
  • the buoyancy housing 114 is filled with moulded blocks 118 of syntactic foam material having a specific gravity less than water.
  • the center of buoyancy of the flotation material must be located above the center of gravity of the immersed steel mass of the entire configuration. Therefore, the syntactic foam blocks 118 must be symmetrically arranged around the upper portion of the tool housing 20.
  • the buoyancy housing 114 is particularly adaptable for deep water applications where depths of 1000 feet or more are encountered.
  • the buoyancy chamber configuration 116 may be preferable. It is designed as an airtight vessel capable of withstanding external pressure equal to the head of the sea which could effect a differential pressure as much as 445 pounds per square inch.
  • a cylindrical shell can be utilized with hemispherical heads 120 on each end of the chamber.
  • the axis of the chamber is concentric with the tool housing 20 near the upper portion of the assembly.
  • precharging of the chamber with compressed gas is also contemplated. For example, if the chamber is precharged to about 225 p.s.i.
  • the external sea pressure would be about the same as the internal pressure, so that there would be no pressure differential across the shell. In 1000 feet of water, the external pressure would exceed the internal pressure by about 220 psi. so that the design of the buoyancy chamber 1 16 could be based on the net differential pressure at a savings in weight and cost.
  • the versatility of the embodiment of the subject invention is immediately evident inasmuch as the same configuration can be'utilized either on land or under the sea with the mere deletion of the buoyancy housing or chamber. It is recognized, however, that this configuration will not have the same advantage on land due to the weight of the additional high-pres sure section, and the increased danger due to the larger encased volumes at high pressure.
  • the unit can be varied in accordance with the functions which are desired -to be performed with it, merely by changing design details. For example, depending upon forces required at a depth which must be reached for a desired operation, cable size, drum size, motor power and pressure housing size will necessarily be selectively altered. Also, depending upon the length of the tools required and the diameter of the well tubing to be entered, the vertical or tool housing will be sized accordingly.
  • a pressure vessel including means coupling said vessel in fluid communication with said tubing string, said first recited means exposing the interior of said vessel directly to the pressure in the tubing string and allowing the interior of said vessel to be filled with the well fluid whereby the normally required stuffing box is eliminated so that any type or shape of wire for lowering the tool assembly into said tubing string can be utilized;
  • winch drum drive motor includes a motor includes a motor housing and a shaft; and additionally including:
  • winch drum drive motor comprises a radial piston hydraulic motor.
  • wire line comprises a fiat metallic ribbon of a predetermined length wound onto said winch drum.
  • wire line comprises a stranded cable wound onto said winch drum.
  • buoyancy means comprises a substantially hollow chamber axially disposed around the pressure vessel.
  • buoyancy means comprises a housing axially disposed around the pressure vessel and including buoyancy material contained therein.
  • said pressure vessel additionally comprises a relatively long hollow member containing said tool assembly.
  • said pressure vessel comprises a hollow chamber housing said winch drum drive motor and winch drum and additionally including an access cover removably secured to said chamber at one end thereof, pressure sealing means located intermediate said access cover andsaid chamber for providing a pressure seal when said access cover is secured to said chamber and clamping means for securing said access cover to said hollow chamber.
  • said pressure vessel additionally comprises an elongated tubular member terminated at one end in said hollow chamber for housing said tool assembly.
US837658A 1969-06-30 1969-06-30 Down-hole installation, recovery, and maintenance tool for wells Expired - Lifetime US3602300A (en)

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US83765869A 1969-06-30 1969-06-30

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US837658A Expired - Lifetime US3602300A (en) 1969-06-30 1969-06-30 Down-hole installation, recovery, and maintenance tool for wells

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US (1) US3602300A (xx)
DE (1) DE2031301A1 (xx)
FR (1) FR2048070B1 (xx)
GB (1) GB1238150A (xx)
NL (1) NL7009443A (xx)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098333A (en) * 1977-02-24 1978-07-04 Compagnie Francaise Des Petroles Marine production riser system
US4993492A (en) * 1984-11-13 1991-02-19 The British Petroleum Company, P.L.C. Method of inserting wireline equipment into a subsea well
US6457527B2 (en) * 1998-03-17 2002-10-01 Granville Louis Wells Apparatus and method for adding buoyancy to riser with inflatable floatation collar
US6488093B2 (en) 2000-08-11 2002-12-03 Exxonmobil Upstream Research Company Deep water intervention system
US20030155127A1 (en) * 2000-02-21 2003-08-21 Hans-Paul Carlsen Intervention device for a subsea well, and method and cable for use with the device
WO2009065576A1 (en) * 2007-11-23 2009-05-28 Services Petroliers Schlumberger Spooling apparatus for well intervention system
WO2010074980A1 (en) * 2008-12-10 2010-07-01 Carter Ernest E Jr Method and apparatus for increasing well productivity
US20140166300A1 (en) * 2012-12-14 2014-06-19 Brightling Equipment Ltd. Drive head for a wellhead
AU2013205556B2 (en) * 2012-12-14 2016-07-21 Brightling Equipment Ltd Drive head for a wellhead
US20190032436A1 (en) * 2017-07-28 2019-01-31 Cameron International Corporation Systems for retrievable subsea blowout preventer stack modules
US10822065B2 (en) 2017-07-28 2020-11-03 Cameron International Corporation Systems and method for buoyancy control of remotely operated underwater vehicle and payload
US10858903B2 (en) 2015-02-18 2020-12-08 Fmc Kongsberg Subsea As Tool and method for closed operation in a subsea well
WO2021011291A1 (en) * 2019-07-12 2021-01-21 Saudi Arabian Oil Company Self-contained well intervention system and method
US11105174B2 (en) 2017-07-28 2021-08-31 Schlumberger Technology Corporation Systems and method for retrievable subsea blowout preventer stack modules
US11802449B2 (en) 2019-01-29 2023-10-31 Icon Instruments As Pressure-equalized wireline apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8401315D0 (en) * 1984-01-18 1984-02-22 Graser J A Wireline apparatus
GB0714880D0 (en) * 2007-07-31 2007-09-12 Expro North Sea Ltd Winch assembly

Citations (11)

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US1110313A (en) * 1913-11-29 1914-09-15 Carl Davenport Winding and haulage drum.
US1817201A (en) * 1930-05-17 1931-08-04 Burt S Minor Cement head for oil wells
US1875600A (en) * 1929-03-22 1932-09-06 Holman Brothers Ltd Hoist
USRE24086E (en) * 1955-11-08 Line feeder for high pressure oil wells
US2810439A (en) * 1955-05-11 1957-10-22 Mccullough Otis Johnson Well head attachment for operating tools in a well under pressure
US3408822A (en) * 1965-08-06 1968-11-05 Shell Oil Co Diving method and apparatus
US3415317A (en) * 1965-12-11 1968-12-10 Auxiliaire Des Producteurs De Equipment for wire-lining operations in submarine well drillings
US3500907A (en) * 1968-12-05 1970-03-17 Lockheed Aircraft Corp Closed flushing and vapor elimination system for wireline components
US3504740A (en) * 1967-08-28 1970-04-07 Mobil Oil Corp Subsea satellite foundation unit and method for installing a satellite body within said foundation unit
US3511312A (en) * 1967-04-24 1970-05-12 Maurice Laffont Cable working arrangement on submarine well-heads
US3517736A (en) * 1968-07-18 1970-06-30 North American Rockwell Subsurface wireline system

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US2720266A (en) * 1953-10-05 1955-10-11 Shell Dev Line inserting device for high pressure vessels
FR1513218A (fr) * 1965-09-25 1968-02-16 Volgo Ural Vnii Geofizicheskik Treuil, notamment pour le carottage
FR1536233A (fr) * 1967-04-24 1968-08-16 Entpr De Rech S Et D Activites Dispositif de travail au câble sur têtes de puits sous-marines

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE24086E (en) * 1955-11-08 Line feeder for high pressure oil wells
US1110313A (en) * 1913-11-29 1914-09-15 Carl Davenport Winding and haulage drum.
US1875600A (en) * 1929-03-22 1932-09-06 Holman Brothers Ltd Hoist
US1817201A (en) * 1930-05-17 1931-08-04 Burt S Minor Cement head for oil wells
US2810439A (en) * 1955-05-11 1957-10-22 Mccullough Otis Johnson Well head attachment for operating tools in a well under pressure
US3408822A (en) * 1965-08-06 1968-11-05 Shell Oil Co Diving method and apparatus
US3415317A (en) * 1965-12-11 1968-12-10 Auxiliaire Des Producteurs De Equipment for wire-lining operations in submarine well drillings
US3511312A (en) * 1967-04-24 1970-05-12 Maurice Laffont Cable working arrangement on submarine well-heads
US3504740A (en) * 1967-08-28 1970-04-07 Mobil Oil Corp Subsea satellite foundation unit and method for installing a satellite body within said foundation unit
US3517736A (en) * 1968-07-18 1970-06-30 North American Rockwell Subsurface wireline system
US3500907A (en) * 1968-12-05 1970-03-17 Lockheed Aircraft Corp Closed flushing and vapor elimination system for wireline components

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098333A (en) * 1977-02-24 1978-07-04 Compagnie Francaise Des Petroles Marine production riser system
US4993492A (en) * 1984-11-13 1991-02-19 The British Petroleum Company, P.L.C. Method of inserting wireline equipment into a subsea well
US6457527B2 (en) * 1998-03-17 2002-10-01 Granville Louis Wells Apparatus and method for adding buoyancy to riser with inflatable floatation collar
US6843321B2 (en) * 2000-02-21 2005-01-18 Fmc Kongsberg Subsea As Intervention device for a subsea well, and method and cable for use with the device
US20030155127A1 (en) * 2000-02-21 2003-08-21 Hans-Paul Carlsen Intervention device for a subsea well, and method and cable for use with the device
US6488093B2 (en) 2000-08-11 2002-12-03 Exxonmobil Upstream Research Company Deep water intervention system
US6659180B2 (en) 2000-08-11 2003-12-09 Exxonmobil Upstream Research Deepwater intervention system
WO2009065576A1 (en) * 2007-11-23 2009-05-28 Services Petroliers Schlumberger Spooling apparatus for well intervention system
US20110036558A1 (en) * 2007-11-23 2011-02-17 Henri Denoix Spooling apparatus for well intervention system
GB2454915B (en) * 2007-11-23 2012-02-15 Schlumberger Holdings Spooling apparatus for well intervention system
US8613310B2 (en) 2007-11-23 2013-12-24 Schlumberger Technology Corporation Spooling apparatus for well intervention system
WO2010074980A1 (en) * 2008-12-10 2010-07-01 Carter Ernest E Jr Method and apparatus for increasing well productivity
US9732561B2 (en) 2008-12-10 2017-08-15 Ernest E. Carter, Jr. Method and apparatus for increasing well productivity
US20140166300A1 (en) * 2012-12-14 2014-06-19 Brightling Equipment Ltd. Drive head for a wellhead
AU2013205556B2 (en) * 2012-12-14 2016-07-21 Brightling Equipment Ltd Drive head for a wellhead
US9366119B2 (en) * 2012-12-14 2016-06-14 Brightling Equipment Ltd. Drive head for a wellhead
US10858903B2 (en) 2015-02-18 2020-12-08 Fmc Kongsberg Subsea As Tool and method for closed operation in a subsea well
US20190032436A1 (en) * 2017-07-28 2019-01-31 Cameron International Corporation Systems for retrievable subsea blowout preventer stack modules
US10822065B2 (en) 2017-07-28 2020-11-03 Cameron International Corporation Systems and method for buoyancy control of remotely operated underwater vehicle and payload
US10900317B2 (en) * 2017-07-28 2021-01-26 Cameron International Corporation Systems for retrievable subsea blowout preventer stack modules
US11105174B2 (en) 2017-07-28 2021-08-31 Schlumberger Technology Corporation Systems and method for retrievable subsea blowout preventer stack modules
US11802449B2 (en) 2019-01-29 2023-10-31 Icon Instruments As Pressure-equalized wireline apparatus
WO2021011291A1 (en) * 2019-07-12 2021-01-21 Saudi Arabian Oil Company Self-contained well intervention system and method
US10920521B2 (en) 2019-07-12 2021-02-16 Saudi Arabian Oil Company Self-contained well intervention system and method

Also Published As

Publication number Publication date
NL7009443A (xx) 1971-01-04
FR2048070A1 (xx) 1971-03-19
FR2048070B1 (xx) 1974-07-12
DE2031301A1 (de) 1971-01-21
GB1238150A (xx) 1971-07-07

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