US3827488A - Casing hanger assembly and operating tools therefor - Google Patents

Casing hanger assembly and operating tools therefor Download PDF

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Publication number
US3827488A
US3827488A US00357832A US35783273A US3827488A US 3827488 A US3827488 A US 3827488A US 00357832 A US00357832 A US 00357832A US 35783273 A US35783273 A US 35783273A US 3827488 A US3827488 A US 3827488A
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United States
Prior art keywords
actuator
sleeve
locking
seal
ring
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.)
Expired - Lifetime
Application number
US00357832A
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English (en)
Inventor
A Piazza
R Lamb
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Rucker Co
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Rucker Co
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Publication date
Application filed by Rucker Co filed Critical Rucker Co
Priority to US00357832A priority Critical patent/US3827488A/en
Priority to US440193A priority patent/US3901546A/en
Priority to JP49022918A priority patent/JPS509503A/ja
Priority to SE7403332A priority patent/SE407434B/xx
Priority to GB1254274A priority patent/GB1455051A/en
Priority to GB5329175A priority patent/GB1455052A/en
Priority to AR253047A priority patent/AR217224A1/es
Priority to NL7404960A priority patent/NL7404960A/xx
Priority to FR7414491A priority patent/FR2228933A1/fr
Priority to CA198,272A priority patent/CA996861A/en
Priority to BR3608/74A priority patent/BR7403608D0/pt
Priority to DE2421716A priority patent/DE2421716A1/de
Priority to AT373374A priority patent/AT337126B/de
Priority to NO741628A priority patent/NO141960C/no
Priority to IT22359/74A priority patent/IT1010459B/it
Publication of US3827488A publication Critical patent/US3827488A/en
Application granted granted Critical
Priority to CA250,065A priority patent/CA1003748A/en
Priority to NO782692A priority patent/NO782692L/no
Assigned to BAROID TECHNOLOGY, INC., 3000 NORTH SAM HOUSTON PARKWAY EAST A CORP. OF DE reassignment BAROID TECHNOLOGY, INC., 3000 NORTH SAM HOUSTON PARKWAY EAST A CORP. OF DE ASSIGNS THE ENTIRE INTEREST, SUBJECT TO LICENSE Assignors: RUCKER COMPANY, THE
Assigned to CHASE MANHATTAN BANK (NATIONAL ASSOCIATION), THE reassignment CHASE MANHATTAN BANK (NATIONAL ASSOCIATION), THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAROID CORPORATION, A CORP. OF DE.
Anticipated expiration legal-status Critical
Assigned to BAROID CORPORATION reassignment BAROID CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CHASE MANHATTAN BANK, THE
Expired - Lifetime 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • 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
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/01—Sealings characterised by their shape

Definitions

  • a circulating casing hanger having a body including a fluid passageway carrying a seal sleeve having a seal for scaling in the passageway.
  • a longitudinally movable actuator for moving a locking ring and the sleeve downwardly to set the seal and engage the ring in a locking recess in the body.
  • Various locking means and energy storing means may be used to maintain the seal in a set position.
  • the present invention is directed to various improvements in a casing hanger assembly which may be run into a wellhead mandrel, the seal set and tested. Emergency retrieval of the seal assembly may be performed in the event the seal is unsatisfactory.
  • the bowl protector may be run and retrieved in combination with the casing hanger or independently therefrom. And improved operating tools for running, setting, testing and retrieving various'components of the circulating casing hanger assembly are provided.
  • the present invention isdirected to a casing hanger assembly in which the hanger seal may be set by longitudinal movement into a releasable locking engagement, and may be released by longitudinal actuation.
  • the casing hanger body includes a fluid passageway with a longitudinally movable seal sleeve having a seal for closing the passageway, and a longitudinally movable actuator for moving the sleeve and seal into a sealing relationship in the passageway.
  • the body includes a locking recess for receiving a locking ring which is moved by the actuator for releasably holding the seal in a sealed position.
  • Tapering coacting faces are provided between the actuator and the locking ring and between the locking ring and the locking recess to provide a wedging action for setting the seal which provides a releasable locking function as well as providing a mechanical advantage in setting the seal.
  • Additional releasable locking means may be provided between the actuator and the sleeve holding the seal in an expanded position such as releasable coacting ratchet teeth which may be released by a retrieving tool.
  • energy storage means may be provided for maintaining a setting force on the set seal. This is also releasable.
  • Another object of the present invention is the provision of a hydraulic setting tool for moving the actuator and setting the seal by providing a piston and cylinder assembly connected to a running string and adapted to be positioned in engagement with the actuator wherein fluid pressure applied to the running string may actuate the piston and cylinder assembly and set the casing hanger seal.
  • Still a further object of the present invention is the provision of a longitudinally movable weight setting tool for longitudinally moving the actuator and setting the seal of the casing hanger.
  • Still a further object of the present invention is the provision of a retrieving tool for emergency retrieval of the seal assembly in the event the seal is unsatisfactory which includes an engaging surface for releasing the releasable locking means holding the seal in engagement, and includes retrieving lugs for engaging the actuator and retrieving the actuator, the sleeve and the locking ring.
  • Yet a still further object is the provision of a bowl protector setting and retrieving tool for running and LII setting the bowl protector in combination with a casing hanger.
  • Still a further object of the present invention is the provision of a running and retrieving bowl protector tool for setting or retrieving a bowl protector independently of the casing hanger in which the protector includes a tool engaging opening one side of which includes a tapered face, and the bowl running tool includes a spring-loaded lug for engaging the protector opening with a lug-locking sleeve carried by the running tool which is yieldably urged toward the lug and engages a locking notch in the lug after the protector is set and the tool is rotated against the opening tapered face moving the lug to a locking position.
  • the tool may also be used to retrieve the bowl protector by locking the locking sleeve in a disengaged position whereby the lugs may engage the bowl protector opening and retrieve the bowl protector.
  • a further object is the provision of a running and- /or retrieving tool having spring actuated dogs for engaging, setting, or retrieving a bowl protector or casing hanger seal assembly by longitudinal movement without requiring any rotational orientation or rotational actuation.
  • the spring actuated dogs may be released downhole by actuation of a hydraulic release for setting of equipment all without requiring rotative movement of the tool.
  • FIG. 1 is a fragmentary elevational view, in crosssection, illustrating the casing hanger assembly of the present invention placed in position in a wellhead mandrel prior to cementing the casing,
  • FIG. 2 is a fragmentary elevational view, in crosssection, with the running tool positioned in washing position for cleaning the seal and seating area,
  • FIG. 3 is a fragmentary elevational view, in crosssection, showing a hydraulic setting tool in position for setting the casing hanger seal
  • FIG. 4 is a fragmentary elevational view, in crosssection, illustrating a mechanical weight setting tool in position for setting the casing hanger seal
  • FIG. 5 is a fragmentary elevational view, partly in cross-section, of the casing hanger assembly in a well.- head mandrel after the seal is set,
  • FIG. 6 is an enlarged cross-sectional view taken along the line 6-6 of FIG. 5,
  • FIG. 7 is an enlarged cross-sectional view taken along the line 77 of FIG. 5,
  • FIG. 8 is a fragmentary elevational view, partly in cross-section, illustrating a retrieving tool for retrieving the seal assembly of the casing hanger
  • FIG. 9 is a fragmentary elevational view, in crosssection, of a bowl protector running tool shown in position for running a bowl protector independently of the casing hanger,
  • FIG. 10 is a cross-sectional view taken along the line l0-10 of FIG. 9 showing the running tool of FIG. 9 adapted to retrieve a bowl protector independently from the casing hanger
  • FIG. 11 is a fragmentary elevational view, in cross section, of another embodiment of a setting and retrieving tool shown in an enlarged position
  • FIG. 12 is a cross-sectional view taken along the line 12-12 of FIG. 11,
  • FIG. 13A is a fragmentary elevational view, in cross section of the tool of FIGS. 11 and 12, showing the setting tool in a released position after setting a bowl protector,
  • FIG. 13B is a fragmentary elevational view, showing the setting tool of FIGS. 11 and 12, in position retrieving a casing hanger seal,
  • FIG. 14 is a fragmentary elevational view, in cross section, showing another embodiment of a casing hanger seal assembly shown in an unset position, and
  • FIG. 15 is a-fragmentary elevational view, in cross section, of the seal assembly of FIG. 14 shown in the set position.
  • the reference numeral 10 generally indicates the casing hanger assembly of the present invention attached to a running tool 12 for seating in a wellhead mandrel 14 for supporting well hole casing 16 within a well for conventionally cementing the well hole casing 16 into the well.
  • the casing hanger assembly 10 includes a casing hanger generally indicated by the numeral 17 and includes a casing hanger body 18 having a landing shoulder 20 for landing on a shoulder 22 in the wellhead mandrel 14 for supporting the assembly 10 therefrom.
  • the body 18 also includes internal threads 24 for connection to the well hole casing 16 for supporting the casing 16 therefrom.
  • the body 18 further includes internal threads 26, preferably left-handed threads, for supporting the assembly 10 from a running tool 12 for insertion into the mandrel 14.
  • the body 18 further includes wash ports 28 whose purpose and function will be more fully described hereinafter.
  • an internal cement return passageway is provided in or about the body 18 for the return of cement flowing up about the outside of the well hole casing 16 through ports 30 and 32 (FIGS.
  • a snap ring 21 is provided on the body 18 for engagement with a wellhead mandrel groove 23 for releasably holding the asembly in the mandrel 14.
  • a locking recess 34 is provided in the body 18 whose function and purpose will be more fully described hereinafter.
  • the assembly 10 also includes the seal assembly including a sleeve 36 having a seal 38 for sealing the passageway between the body 18 and the wellhead mandrel 14, a locking ring 40 positioned between the body 18 and the sleeve 36 and an actuator 42 which when moved longitudinally downwardly moves the sleeve 36 and locking ring 40 downwardly and moves the seal 38 into sealing engagement between the body 18 and the mandrel 14.
  • the seal assembly consisting of the sleeve 36, the locking ring 40 and the actuator 42, are retained in an upward position, such as by a shear pin 44, for holding the seal 38 out of the passageway including the ports 30 and 32 for conducting conventional cementing operations.
  • the assembly 10 also includes a bowl protector 46 which may be run with the casing hanger 17 or independently therefrom.
  • the casing hanger assembly 10 is initially run with a running tool 12 generally consisting of a section of pipe of the same inside diameter as the casing 16.
  • the tool 12 is screwed into the body 18., preferably with a course left-handed thread 48 coacting with the thread 26 on the body 18 and made up with two O-ring seals 50 coacting with the body 18 to initially close the wash ports 28.
  • the assembly 10 is lowered into the well until the shoulder 20 on the body 18 is seated on a landing shoulder 22 of the wellhead mandrel 14.
  • the snap ring 21 snaps into place in the groove 23 releasably holding the body 18 in the mandrel 14, all as best seen in FIG. 1.
  • Conventional cementation is started and completed for cementing the casing 16 in the well bore by pumping cement down the interior bore of the tool 12 and casing 16 and upwardly about the outside of the casing 16, through the passage 29 including ports 30 and 32.
  • the bowl protector 46 may be run in combination with the casing hanger 17.
  • An adapter 52 may be threadably secured to the upper end of the sleeve 36 for slidably engaging and holding the lower end of the bowl protector 46.
  • the bowl protector 46 may include a split ring 54 for coacting with a groove 56 in the mandrel 14.
  • the groove 56 includes a pin 58.
  • a shear pin 60 is provided between the running tool 12 and the bowl protector 46 for rotating the bowl protector 46 and the ring 54 until the gap in the split ring 54 mates with the pin 58 allowing the snap ring 54 to snap into the groove 56 for preventing rotation of the protector bowl 46.
  • the running tool 12 is rotated to the right unscrewing the left-handed connection between the threads 48 and 26 to back off the lower seal 50 on the running tool 12 to open the wash ports 28. Water is now circulated down through the bore of the tool 12, through the wash ports 28 and up through the annulus 29 between the running tool and the wellhead mandrel 14 to clean the seating areas and the seal 38. Rotation of the running tool 12 will also shear pin 60 between the running tool 12 and the bowl protector 46. After the washing is completed, further rotation of the running tool 12 will uncouple the running tool from the body 18 and the running tool 12 is pulled from the well.
  • a hydraulic setting and testing tool 62 is shown connected to the running string 64 and provided with a shoulder 66 which may be engaged by a blowout preventer ram 68 for prevnting upward movement of the tool 62 and string 64 when actuating the seal 38.
  • the hydraulic tool 62 includes a cylinder and piston assembly having a cylinder 70 and piston 72 with a port 74 communicating with the bore of the tool 62 and running string 64.
  • the piston 72 is adapted to be positioned and engage the actuator 42 longitudinally moving the actuator 42 in a downward direction.
  • the seal sleeve 36 includes an upwardly directed shoulder for initially carrying the locking ring 40 at a position above the locking recess 34.
  • the actuator 42 is positioned above and contacts the top of the locking ring 40 so that on downward movement of the actuator 42, the retaining shear pin 44 is sheared and the actuator 42 drives the locking ring 40 and the seal sleeve 36 downwardly carrying the seal 38 downwardly.
  • the actuator 42 includes a tapered face 82 which is adapted to coact with a tapered face 84 on the locking ring 40 when the ring 40 snaps into position in the locking recess 34 in the body 18.
  • the top of the locking recess 34 includes a tapered face 86 which coacts with a tapered face 88 on the top of the locking ring 40.
  • a ball 94 is provided to drop downhole and seat on seat 96 and when hydraulic pressure is applied to the bore of the tool 62, through port 74, the piston 72 is moved downwardly moving the actuator 42 downwardly shearing pin 44 and moving the locking ring 40 into the locking recess 34 which carries sleeve 36 and seal 38 longitudinally downwardly. Further longitudinal thrust on the actuator 42 wedges the shoulder 88 on the locking ring 40 against the shoulder 86 at the top of the locking recess 34 causing further compression of the seal 38 as its lower end contacts a shoulder 90 on the body 18 and expands between the mandrel 14 and the body 18.
  • the desired compression of the seal 18 may be obtained through the combination of a self-locking taper between the coacting outwardly and downwardly directed faces 82 on the actuator 42 and 84 on the locking ring 40 such as a 7 selflocking taper, and against the taper between the inwardly and downwardly directed coacting faces 86 and 88 which may be a 45 degree taper.
  • the two pair of coacting tapering faces in addition to providing a releasable locking mechanism for the seal 38, also provide a 3 or 4-to-l mechanical advantage reducing proportionately the required setting pressure of the piston 72.
  • the seal 38 is in a set position.
  • an additional locking system to the selflocking taper between the tapering faces 82 and 84 of the actuator 42 and locking ring 40 is provided since vibration may loosen the locking taper and release the seal 38.
  • Additional releasing locking means may be provided, as best seen in FIGS. 5-7 in which upwardly directed ratchet teeth 100 are provided on the acuator 42 to coact with ratchet teeth segments 102 having downwardly directed teeth 104.
  • the ratchet segments 102 are carried by the seal sleeve 36 in a recess 106 and are yieldably urged inwardly into contact with the actuator 42 by suitable spring means such as rubber pads 108.
  • the coacting ratchet teeth 100 and 104 will ratchet under the action of the resilient pads 107 to allow the actuator 42 to move downwardly relative to the sleeve 36 to lock the seal 38 in a compressed position and prevent relaxation of the seal 38.
  • the coacting ratchet teeth 100 and 102 must be separated and segment-releasing elements 110 are provided carried by the actuator 42 and positioned against the ratchet segment 102 and having ends 112 which protrude inwardly from the actuator 42 for contact by suitable means.
  • the ends 112 are pressed outwardly, the segment 102 will move against the resilient pads 108 disengaging the ratchet teeth 100 and 102 allowing the actuator 42 to be moved upwardly relative to the sleeve 36.
  • the setting and testing tool 62 (FIG. 3) includes a testing seal 92 for sealing against the body 18. Pressure may be applied downwardly onto seal 38 through the annulus 29, ports 98 in piston 72 of tool 62, and ports 32. In the event that the testing seal 92 leaks, bursting of the casing 13 is avoided since excess pressure in the casing 13 may push the ball 94 off of its seat and be released through the bore 31.
  • a retrieving tool 114 is provided.
  • the retrieving tool 114 includes a plurality of spline grooves 116 and upsets 118 to coact with the corresponding upsets 120 and grooves 122 of the actuator 42, as best seen in FIG. 5.
  • the retrieving tool 114 In inserting the retrieving tool 114 into the actuator 42, should the upsets 118 contact an upset 120 on the actuator 42, slight rotation will cause the spline-like assemblies to coact.
  • the upsets 118 on the retrieving tool 114 will engage the inner ends 112 of elements to move the teeth segments 102 away from the actuator 42 and release the releasable locking ratchet teeth 100 and 102 to allow the actuator 42 to be moved upwardly and retract from the locking ring and sleeve 36.
  • the retrieving tool 114 includes a plurality of spring-loaded lugs 124 that move downwardly over the upsets on the actuator 42 and engage an engaging shoulder 126. Upward pull on the retrieving tool 114 longitudinally moves the actuator 42 upwardly releasing the locking ring 40.
  • the seal assembly After the seal assembly has been removed and checked, it may be rerun and set with the setting and testing tool 62 shown in FIG. 4 by supporting the seal assembly from the tool 62 with a shear pin 132, so that the sleeve 36, actuator 42 and locking ring may be reinserted around the body 18 of the casing hanger.
  • the hydraulic setting tool 62 may be modified, as best seen in FIG. 4, to provide a hydraulic weight-setting tool by inserting a spacer bar 134 in the piston and cylinder assembly or by merely setting down on the tool 62 until the cylinder 70 closes on the piston 72. Mechanically and longitudinally moving the tool 30 downwardly around the body 18 will longitudinally set or reset the seal 38 as in the operation described in connection with FIG. 3.
  • the protector bowl 46 may be run in combination with the casing hanger 17. In addition, the protector bowl 46 may also be run and retrieved separately from the casing hanger 17.
  • the bowl protector 46 includes a tool engaging opening which includes, as best seen in FIG. 1, a tapered face 142 tapering inwardly on one side.
  • a protector bowl tool 144 is provided for connection to a running string (not shown) and having spring-loaded lugs 146 adapted to engage the openings 140 in the bowl protector 46.
  • the tool 144 also includes a lug locking sleeve 148 which is actuated by a spring 150 toward the lug 146.
  • the lug 146 includes a locking notch 152 on its inwardly end whereby when the lug 146 is pressed inwardly the notch 152 will be engaged by the lower end 154 of the locking sleeve 148.
  • the tool 144 is assembled at the well surface with the spring-loaded lugs 146 positioned in the openings 140 of the bowl protector 46 supporting the bowl protector from the tool 144.
  • the tool 144 and bowl protector 46 are lowered into the wellhead mandrel 14 until the split ring 54 snaps into the coacting groove 56 in the well mandrel.
  • the tool 144 is then rotated to the right and the lugs 146 will be compressed inwardly by the taper 142 (FIG.
  • the tool 144 may also be used to retrieve the bowl protector 46 independently from the casing hanger 17.
  • the locking sleeve 148 must be neutralized in order to allow the spring-loaded lugs 146 to move inwardly as the tool 146 is moved down the well and to spring outwardly into the openings 140 of the bowl protector 46.
  • a screw 156 is inserted in the tool 144 engaging the bottom end 154 of the locking sleeve 148 and holding the sleeve 148 in the upward position and away from the locking notch 152 of the lugs 146 (FIG. 9).
  • the tool 144 is then run down until the shoulder 160 on the tool 144 contacts the shoulder 162 on the bowl protector 46 thereby aligning and inserting the lugs 146 in the openings 140.
  • a straight upward pulling action on the tool 144 will retrieve the bowl protector 46 from the mandrel 14.
  • FIGS. 11, 12 and 13 a modified setting and retrieving tool which is spring actuated and hydraulically released is best seen for running and retrieving a bowl protector and for retrieving a casing hanger seal assembly.
  • the tool generally indicated by the reference numeral 170 includes a body 172 adapted to be attached to an operating string (not shown), a hydraulic piston 174, and locking dogs 176. Springs 178 are provided between the hydraulic piston 174 and the dogs 176 yieldably urging the dogs 176 outwardly. As best seen in FIG. 1 l, the tool 170 may act as a retrieving tool to retrieve any objects such as a bowl protector 180 having an annular engaging notch 182.
  • the tool 170 may be moved downhole and the dogs 176 will bypass any obstructions or shoulders in the hole by moving inwardly against the spring 178.
  • an upward pull may be taken by the tool 170 for retrieving the bowl protector 180. It is noted that no rotative orientation or turning of the tool 170 is required for engagement with the notch 182 and that the tool 170 has the advantage of retrieving solely with longitudinal movement.
  • a tool 170a may be provided similar to tool 170 but of a smaller ed, to engage and retrieve the hanger seal assembly since the dogs 176a will engage the actuating shoulder 126 for moving the actuator 42 upwardly for removing the seal assembly as previously described, and with only longitudinal movement.
  • the tool 170 and 170a is operable without requiring the rotational alignment as required with the tool described in connection with FIG. 8.
  • the tool 170 in addition to retrieving equipment in the well by mere longitudinal movement, can also run and set equipment therein solely by longitudinal movement.
  • the piston 174 includes a first enlarged diameter section 184 which normally abuts one end of the spring 178.
  • the piston 174 also includes a second smaller diameter section 186.
  • the piston 174 also includes a groove 188 for engagement by a spring loaded plunger 190 for normally holding the piston 174 with the diameter section 184 in registry with the end of the spring 178. Hydraulic fluid may be pumped into the bore 192 of the tool forcing the piston 174 downwardly, as best seen in FIG.
  • the spring 178 When the piston 174 is in the upward position, as shown in FIG. 11, the spring 178 is in a more compressed state and overcomes the springs 196 and 198 and urges the locking dogs 176 outwardly into an engaging position. However, when the piston 174 is moved to a downward position, as best seen in FIG. 13, with the spring 178 abutting the smaller diameter section 186, the springs 196 and 198 overcome the spring 178 and move the locking dogs 176 inwardly into a released position.
  • the tool 170 may set and release equipment solely by longitudinal movement and without requiring rotational orientation or rotational actuation.
  • the seal assembly 200 of FIGS. 14 and 15 includes energy storage means such as one or more belleville springs 202 to maintain a compressive force on the actuator 42a and thus on the seal 38a when set to prevent relaxation and possible leak of the seal 38a. That is, the springs 202 are compressed when the seal assembly is set and the springs 202 maintain a continuous pressure on the actuator 42a. As seen, the springs 202 are positioned above and against the actuator 42a and a retaining member 204 is positioned above the springs 202.
  • energy storage means such as one or more belleville springs 202 to maintain a compressive force on the actuator 42a and thus on the seal 38a when set to prevent relaxation and possible leak of the seal 38a. That is, the springs 202 are compressed when the seal assembly is set and the springs 202 maintain a continuous pressure on the actuator 42a. As seen, the springs 202 are positioned above and against the actuator 42a and a retaining member 204 is positioned above the springs 202.
  • the setting tool 62 carries the assembly 200 by the shear pin 32a for movement down the well bore and into the mandrel 14.
  • the setting tool 62 is actuated, such as by the piston 72, the retainer 204 is moved downwardly against the springs 202 which in turn moves the actuator 42a downwardly and as in the previously embodiment, moves the locking ring 40a and sleeve 36a downwardly setting the seal 38a.
  • Any suitable locking system such as shown in the embodiment of FIGS. 1-8 may be used, although a simplified means would be a plurality of collet hooks 206 connected to the retainer 204 which engage a downwardly directed hook 208 on the sleeve 36a for holding the compressed belleville spring 202, as best seen in FIG. 15, against. the upper end of the actuator 42a thereby maintaining the locking tapers between the members 42a, 40a and seal 38a.
  • the assembly 200 is retrievable without requiring rotation or orientation by use of the tool 170 described in FIGS. 11-13 by merely shearing the pins 205 that hold the collet hooks 206 to the retainer 204.
  • a casing hanger comprising,
  • a longitudinally movable seal sleeve carried by the body and including a seal for sealing between the body and the wellhead, said sleeve having an upwardly facing shoulder,
  • a movable locking ring positioned between the body and the sleeve and above the sleeve shoulder
  • said body including a locking recess for receiving the locking ring
  • an actuator positioned between the sleeve and the body and above the locking ring whereby on longitudinal downward movement of the actuator the ring is moved downwardly against the sleeve shoulder for moving the seal into sealing engagement between the body and the wellhead and the ring is moved into the recess, and
  • locking means for holding the seal in a sealed position.
  • top of the locking ring and the top of the recess include tapering coacting faces.
  • locking means include releasable coacting ratchet means between the actuator and the sleeve.
  • locking means include self-locking tapering coacting faces between the actuator and the locking ring.
  • a piston and cylinder assembly connected to the running string and adapted to be positioned in engagement with the actuator, said assembly being in fluid communication with the interior of the running string whereby fluid pressure applied to the interior of the running string may longitudinally move the actuator.
  • yieldable urging means carried by the sleeve yieldably urging the segments inwardly into contact with the teeth on the actuator
  • segment releasing elements carried by the actuator which when moved outwardly move the segments away from the teeth on the actuator.
  • shear means between the running too] and the bowl protector for rotating the bowl protector and split ring to allow the pin to mate in the gap and allow the ring to seat in the groove.
  • a bowl protector adapted to be positioned in the well mandrel above the casing hanger
  • a latch ring carried by the bowl protector for releasably engaging the groove in the mandrel
  • a tool engaging opening in the protector one side of the opening including a tapered face
  • a bowl running tool including,
  • a spring loaded lug for engaging the opening in the protector for running the protector, said lug including a locking notch on the inwardly extending end,
  • spring means yieldably urging the sleeve towards the lug and engaging the locking notch after the protector is set and the tool is rotated against the opening tapered face moving the lug inwardly.
  • the apparatus of claim 10 including, locking screws in the tool positioned to hold the locking sleeve out of engagement with the lug whereby the tool may retrieve the bowl protector from the mandrel by longitudinal movement after the lug engages the bowl protector opening.
  • a circulating casing hanger comprising, a
  • seal sleeve carried by and longitudinally movable relative to the body and including a seal for sealing between the body and the interior of the wellhead, said sleeve having an upwardly facing shoulder,
  • said body including a locking recess for receiving the locking ring after the locking ring is longitudinally moved downwardly
  • a longitudinally movable actuator positioned between the sleeve and the body and above the locking ring whereby on longitudinal downward movement of the actuator the ring is moved downwardly against the sleeve shoulder moving the seal into engagement between the body and the wellhead
  • said actuator and the locking ring include tapering coacting faces, and directed downwardly and outwardly, and
  • top of the locking ring and the top of the recess include coacting tapering faces directed downwardly and inwardly.
  • the apparatus of claim 12 including releasable locking means between the actuator and the sleeve.
  • a longitudinally set circulating casing hanger comprising,
  • a body having a landing shoulder for landing on a shoulder in a wellhead, said body including a fluid passageway,
  • a seal sleeve longitudinally movable relative to and carried by the body and including a seal initially held above the passageway but longitudinally movable into and sealing said passageway, said sleeve including an upwardly facing actuating shoulder which when moved downwardly carries the sleeve downwardly and moves the seal into a sealing relationship in the passageway,
  • said body including a locking recess for receiving the locking ring as the ring is longitudinally moved downwardly
  • a longitudinally movable actuator positioned between the sleeve and the body and above the locking ring whereby on longitudinal downward movement of the actuator the ring is moved downwardly against the sleeve shoulder for moving the seal into a sealing relationship in the passageway
  • top of the locking ring and the top of the recess include coacting tapering faces directed inwardly and downwardly, and
  • the actuator and the locking ring include tapering coacting faces directed downwardly and outwardly, and
  • the apparatus of claim 1 including energy storage means positioned to exert a sealing force on the seal and held in an energy storing position by the locking means.
  • spring means positioned above the actuator and adapted to be compressed upon setting of the seal, said spring means held in a compressed position by said locking means.
  • the apparatus of claim 14 including, energy storage means positioned between the actuator and the locking means.

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US00357832A 1973-05-07 1973-05-07 Casing hanger assembly and operating tools therefor Expired - Lifetime US3827488A (en)

Priority Applications (17)

Application Number Priority Date Filing Date Title
US00357832A US3827488A (en) 1973-05-07 1973-05-07 Casing hanger assembly and operating tools therefor
US440193A US3901546A (en) 1973-05-07 1974-02-06 Casing hanger assembly and operating tools therefor
JP49022918A JPS509503A (no) 1973-05-07 1974-02-28
SE7403332A SE407434B (sv) 1973-05-07 1974-03-13 Apparat for upphengning av foder i brunns- eller kellskaft
GB1254274A GB1455051A (en) 1973-05-07 1974-03-21 Casing hanger assembly and operating tools therefor
GB5329175A GB1455052A (en) 1973-05-07 1974-03-21 Well running and retrieving tool
AR253047A AR217224A1 (es) 1973-05-07 1974-03-29 Conjunto de colgador de ademe adaptado para fijarse en una cabeza de pozo
NL7404960A NL7404960A (no) 1973-05-07 1974-04-11
FR7414491A FR2228933A1 (no) 1973-05-07 1974-04-25
CA198,272A CA996861A (en) 1973-05-07 1974-04-26 Casing hanger assembly and operating tools therefor
BR3608/74A BR7403608D0 (pt) 1973-05-07 1974-05-03 Suspensor para tubulacao de revestimento
DE2421716A DE2421716A1 (de) 1973-05-07 1974-05-04 Futterrohr-haengervorrichtung
AT373374A AT337126B (de) 1973-05-07 1974-05-06 Futterrohr-hangervorrichtung
NO741628A NO141960C (no) 1973-05-07 1974-05-06 Broennroeropphengningsanordning.
IT22359/74A IT1010459B (it) 1973-05-07 1974-05-07 Sopporto di sospensione per tubi e utensili per il loro azionamento
CA250,065A CA1003748A (en) 1973-05-07 1976-04-12 Casing hanger assembly and operating tools therefor
NO782692A NO782692L (no) 1973-05-07 1978-08-07 Driv- og gjenvinningsverktoey for broennroer-opphengningsanordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00357832A US3827488A (en) 1973-05-07 1973-05-07 Casing hanger assembly and operating tools therefor

Publications (1)

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US3827488A true US3827488A (en) 1974-08-06

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ID=23407209

Family Applications (1)

Application Number Title Priority Date Filing Date
US00357832A Expired - Lifetime US3827488A (en) 1973-05-07 1973-05-07 Casing hanger assembly and operating tools therefor

Country Status (13)

Country Link
US (1) US3827488A (no)
JP (1) JPS509503A (no)
AR (1) AR217224A1 (no)
AT (1) AT337126B (no)
BR (1) BR7403608D0 (no)
CA (1) CA996861A (no)
DE (1) DE2421716A1 (no)
FR (1) FR2228933A1 (no)
GB (2) GB1455051A (no)
IT (1) IT1010459B (no)
NL (1) NL7404960A (no)
NO (2) NO141960C (no)
SE (1) SE407434B (no)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897823A (en) * 1974-08-05 1975-08-05 Vetco Offshore Ind Inc Rotatably releasable casing hanger and packing running apparatus
US3903965A (en) * 1974-03-07 1975-09-09 Vetco Offshore Ind Inc Apparatus for installing and setting packing assemblies in wellheads
US3913670A (en) * 1974-05-28 1975-10-21 Vetco Offshore Ind Inc Apparatus for setting and locking packing assemblies in subsurface wellheads
US3920071A (en) * 1974-06-19 1975-11-18 Cameron Iron Works Inc Well apparatus
US3924679A (en) * 1974-08-07 1975-12-09 Vetco Offshore Ind Inc Pressure operated apparatus for running and setting packing assemblies in wellheads
US3924678A (en) * 1974-07-15 1975-12-09 Vetco Offshore Ind Inc Casing hanger and packing running apparatus
US3926457A (en) * 1974-04-19 1975-12-16 Cameron Iron Works Inc Well completion apparatus
US3933202A (en) * 1974-10-21 1976-01-20 Vetco Offshore Industries, Inc. Apparatus for setting and locking packing assemblies in wellheads
US4030544A (en) * 1974-06-03 1977-06-21 Vetco Offshore Industries, Inc. Wellhead seal apparatus and pulling tool for releasing and retrieving such apparatus
US4067388A (en) * 1976-04-29 1978-01-10 Fmc Corporation Hydraulic operated casing hanger running tool
US4399873A (en) * 1981-06-16 1983-08-23 Mwl Tool And Supply Company Retrievable insert landing assembly
US4408783A (en) * 1980-12-22 1983-10-11 Smith International Inc. Holddown apparatus
US4416472A (en) * 1980-12-22 1983-11-22 Smith International, Inc. Holddown and packoff apparatus
US4580630A (en) * 1984-08-20 1986-04-08 Vetco Offshore, Inc. Mudline casing hanger assembly
US4691780A (en) * 1985-06-03 1987-09-08 Cameron Iron Works, Inc. Subsea wellhead structure
US4736799A (en) * 1987-01-14 1988-04-12 Cameron Iron Works Usa, Inc. Subsea tubing hanger
EP0292085A2 (en) * 1987-05-18 1988-11-23 Cooper Industries, Inc. Tubular connector
US4823871A (en) * 1988-02-24 1989-04-25 Cameron Iron Works Usa, Inc. Hanger and seal assembly
US4836579A (en) * 1988-04-27 1989-06-06 Fmc Corporation Subsea casing hanger suspension system
US5226478A (en) * 1992-03-24 1993-07-13 Abb Vetco Gray Inc. Cement port closure sleeve for a subsea well
US5311947A (en) * 1992-09-10 1994-05-17 Abb Vetco Gray Inc. Preselected casing tensioning system
US6302211B1 (en) * 1998-08-14 2001-10-16 Abb Vetco Gray Inc. Apparatus and method for remotely installing shoulder in subsea wellhead
US20050023866A1 (en) * 2003-07-30 2005-02-03 Cooper Cameron Corporation Non-rotational casing hanger and seal assembly running tool
US20060231248A1 (en) * 2004-07-26 2006-10-19 Vetco Gray Inc. Shoulder ring set on casing hanger trip
CN102561988A (zh) * 2012-01-18 2012-07-11 中国石油天然气股份有限公司 小直径遇水膨胀坐封堵塞器
CN105178925A (zh) * 2015-09-01 2015-12-23 中国石油天然气股份有限公司 注入井作业油套分流平衡防喷工具
CN105408580A (zh) * 2013-05-30 2016-03-16 通用电气石油和天然气压力控制有限公司 组合流体泵送接头和挂架锁紧工具
WO2016022293A3 (en) * 2014-08-05 2016-03-31 Vetco Gray Inc. Ratcheted e-ring retention device
CN105909503A (zh) * 2016-05-31 2016-08-31 托普威尔石油技术股份公司 一种井下空心抽油泵
US10267121B2 (en) 2009-01-22 2019-04-23 Weatherford Technology Holdings, Llc Expandable slip system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381868A (en) * 1981-07-24 1983-05-03 Cameron Iron Works, Inc. Pressure-actuated wellhead sealing assembly
US5105888A (en) * 1991-04-10 1992-04-21 Pollock J Roark Well casing hanger and packoff running and retrieval tool
GB2285822B (en) * 1994-01-19 1997-07-30 Klaas Johannes Zwart Seal arrangement
CN105696972B (zh) * 2016-01-20 2018-03-30 中国石油化工股份有限公司 一种耐冲蚀滑套

Citations (5)

* Cited by examiner, † Cited by third party
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US3460615A (en) * 1967-10-09 1969-08-12 Regan Forge & Eng Co Circulating casing hanger and running tool apparatus
US3468559A (en) * 1965-10-23 1969-09-23 Ventura Tool Co Hydraulically actuated casing hanger
US3492026A (en) * 1965-10-23 1970-01-27 Ventura Tool Co Well bore casing hanger apparatus
US3528686A (en) * 1968-06-24 1970-09-15 Vetco Offshore Ind Inc Rotatable casing hanger apparatus
US3638725A (en) * 1970-05-15 1972-02-01 Vetco Offshore Ind Inc Direct drive casing hanger apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468559A (en) * 1965-10-23 1969-09-23 Ventura Tool Co Hydraulically actuated casing hanger
US3492026A (en) * 1965-10-23 1970-01-27 Ventura Tool Co Well bore casing hanger apparatus
US3460615A (en) * 1967-10-09 1969-08-12 Regan Forge & Eng Co Circulating casing hanger and running tool apparatus
US3528686A (en) * 1968-06-24 1970-09-15 Vetco Offshore Ind Inc Rotatable casing hanger apparatus
US3638725A (en) * 1970-05-15 1972-02-01 Vetco Offshore Ind Inc Direct drive casing hanger apparatus

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903965A (en) * 1974-03-07 1975-09-09 Vetco Offshore Ind Inc Apparatus for installing and setting packing assemblies in wellheads
US3926457A (en) * 1974-04-19 1975-12-16 Cameron Iron Works Inc Well completion apparatus
US3913670A (en) * 1974-05-28 1975-10-21 Vetco Offshore Ind Inc Apparatus for setting and locking packing assemblies in subsurface wellheads
US4030544A (en) * 1974-06-03 1977-06-21 Vetco Offshore Industries, Inc. Wellhead seal apparatus and pulling tool for releasing and retrieving such apparatus
US3920071A (en) * 1974-06-19 1975-11-18 Cameron Iron Works Inc Well apparatus
US3924678A (en) * 1974-07-15 1975-12-09 Vetco Offshore Ind Inc Casing hanger and packing running apparatus
US3897823A (en) * 1974-08-05 1975-08-05 Vetco Offshore Ind Inc Rotatably releasable casing hanger and packing running apparatus
US3924679A (en) * 1974-08-07 1975-12-09 Vetco Offshore Ind Inc Pressure operated apparatus for running and setting packing assemblies in wellheads
US3933202A (en) * 1974-10-21 1976-01-20 Vetco Offshore Industries, Inc. Apparatus for setting and locking packing assemblies in wellheads
US4067388A (en) * 1976-04-29 1978-01-10 Fmc Corporation Hydraulic operated casing hanger running tool
US4416472A (en) * 1980-12-22 1983-11-22 Smith International, Inc. Holddown and packoff apparatus
US4408783A (en) * 1980-12-22 1983-10-11 Smith International Inc. Holddown apparatus
US4399873A (en) * 1981-06-16 1983-08-23 Mwl Tool And Supply Company Retrievable insert landing assembly
US4580630A (en) * 1984-08-20 1986-04-08 Vetco Offshore, Inc. Mudline casing hanger assembly
US4691780A (en) * 1985-06-03 1987-09-08 Cameron Iron Works, Inc. Subsea wellhead structure
US4736799A (en) * 1987-01-14 1988-04-12 Cameron Iron Works Usa, Inc. Subsea tubing hanger
EP0292085A2 (en) * 1987-05-18 1988-11-23 Cooper Industries, Inc. Tubular connector
EP0292085A3 (en) * 1987-05-18 1990-04-25 Cameron Iron Works Usa, Inc. (A Delaware Corp.) Tubular connector
US4844510A (en) * 1987-05-18 1989-07-04 Cameron Iron Works Usa, Inc. Tubular connector
US4823871A (en) * 1988-02-24 1989-04-25 Cameron Iron Works Usa, Inc. Hanger and seal assembly
US4836579A (en) * 1988-04-27 1989-06-06 Fmc Corporation Subsea casing hanger suspension system
US5226478A (en) * 1992-03-24 1993-07-13 Abb Vetco Gray Inc. Cement port closure sleeve for a subsea well
US5311947A (en) * 1992-09-10 1994-05-17 Abb Vetco Gray Inc. Preselected casing tensioning system
US6302211B1 (en) * 1998-08-14 2001-10-16 Abb Vetco Gray Inc. Apparatus and method for remotely installing shoulder in subsea wellhead
US20050023866A1 (en) * 2003-07-30 2005-02-03 Cooper Cameron Corporation Non-rotational casing hanger and seal assembly running tool
US7231970B2 (en) * 2003-07-30 2007-06-19 Cameron International Corporation Non-rotational casing hanger and seal assembly running tool
US20060231248A1 (en) * 2004-07-26 2006-10-19 Vetco Gray Inc. Shoulder ring set on casing hanger trip
US7900706B2 (en) * 2004-07-26 2011-03-08 Vetco Gray Inc. Shoulder ring set on casing hanger trip
US10267121B2 (en) 2009-01-22 2019-04-23 Weatherford Technology Holdings, Llc Expandable slip system
US10280715B2 (en) * 2009-01-22 2019-05-07 Weatherford Technology Holdings, Llc Interlocking and setting section for a downhole tool
CN102561988B (zh) * 2012-01-18 2014-04-02 中国石油天然气股份有限公司 小直径遇水膨胀坐封堵塞器
CN102561988A (zh) * 2012-01-18 2012-07-11 中国石油天然气股份有限公司 小直径遇水膨胀坐封堵塞器
CN105408580A (zh) * 2013-05-30 2016-03-16 通用电气石油和天然气压力控制有限公司 组合流体泵送接头和挂架锁紧工具
CN105408580B (zh) * 2013-05-30 2017-08-29 通用电气石油和天然气压力控制有限公司 组合流体泵送接头和挂架锁紧工具
WO2016022293A3 (en) * 2014-08-05 2016-03-31 Vetco Gray Inc. Ratcheted e-ring retention device
US9797215B2 (en) 2014-08-05 2017-10-24 Vetco Gray Inc. Ratcheted E-ring retention device
CN105178925B (zh) * 2015-09-01 2017-10-13 中国石油天然气股份有限公司 注入井作业油套分流平衡防喷工具
CN105178925A (zh) * 2015-09-01 2015-12-23 中国石油天然气股份有限公司 注入井作业油套分流平衡防喷工具
CN105909503A (zh) * 2016-05-31 2016-08-31 托普威尔石油技术股份公司 一种井下空心抽油泵

Also Published As

Publication number Publication date
JPS509503A (no) 1975-01-31
NO141960C (no) 1980-06-04
DE2421716A1 (de) 1974-12-05
NO741628L (no) 1974-11-08
AR217224A1 (es) 1980-03-14
NO782692L (no) 1974-11-08
CA996861A (en) 1976-09-14
SE407434B (sv) 1979-03-26
FR2228933A1 (no) 1974-12-06
AT337126B (de) 1977-06-10
GB1455052A (en) 1976-11-10
GB1455051A (en) 1976-11-10
IT1010459B (it) 1977-01-10
BR7403608D0 (pt) 1974-12-24
ATA373374A (de) 1976-10-15
NL7404960A (no) 1974-11-11
NO141960B (no) 1980-02-25

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