US3915226A - Double collet release mechanism - Google Patents

Double collet release mechanism Download PDF

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Publication number
US3915226A
US3915226A US513964A US51396474A US3915226A US 3915226 A US3915226 A US 3915226A US 513964 A US513964 A US 513964A US 51396474 A US51396474 A US 51396474A US 3915226 A US3915226 A US 3915226A
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US
United States
Prior art keywords
ledge
collar
pipe
adapter
housing
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
US513964A
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English (en)
Inventor
Ronald E Savage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Priority to US513964A priority Critical patent/US3915226A/en
Priority to CA233,252A priority patent/CA1019238A/en
Priority to GB34305/75A priority patent/GB1480865A/en
Priority to NL7510475.A priority patent/NL160359C/xx
Priority to IT26999/75A priority patent/IT1042354B/it
Priority to FR7529019A priority patent/FR2287579A1/fr
Priority to BR7506288*A priority patent/BR7506288A/pt
Priority to DK450975A priority patent/DK450975A/da
Priority to DE19757532012U priority patent/DE7532012U/de
Priority to DE2545090A priority patent/DE2545090C3/de
Priority to JP12234275A priority patent/JPS5421161B2/ja
Priority to NO753435A priority patent/NO146248C/no
Application granted granted Critical
Publication of US3915226A publication Critical patent/US3915226A/en
Anticipated expiration legal-status Critical
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
    • 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 OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/05—Cementing-heads, e.g. having provision for introducing cementing plugs
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • E21B33/16—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement charge; Plugs therefor
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
    • E21B33/14—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes
    • E21B33/16—Methods or devices for cementing, for plugging holes, crevices or the like for cementing casings into boreholes using plugs for isolating cement charge; Plugs therefor
    • E21B33/165—Cementing plugs specially adapted for being released down-hole
    • 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
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations

Definitions

  • ABSTRACT Apparatus for attaching an object to a pipe having an internal ledge and releasing the object in response to the combination of both the landing of a closure member within said apparatus and the subsequent internal pressurization of the pipe, which includes a contractibly ledged collar whose ledge is releasably restrained into interlocking engagement with the pipe ledge and which contracts upon landing of a closure member in a collar and subsequent internal pressurization of the pipe.
  • This invention relates to releasable connections and has particular applicability to the launching of an oilwell cementing plug.
  • the apparatus of this invention solves these problems and others.
  • This invention provides an apparatus, for controlled release of an object from a pipe having an internal ledge, which comprises a collar having a contractile external ledge restrained to interlock said internal pipe ledge by a sleeve disposed within said collar, said sleeve being movable to a position not restraining said contractile ledge, said movement of said sleeve occun'ng upon landing of a closure member in said sleeve and subsequent pressurization of the pipe to a given pressure.
  • FIG. 1 a schematic cross-sectional elevational view of a cementing plug system in which the apparatus of the invention can be used.
  • FIG. 2 a cut-away perspective view of a top plug launching apparatus embodying the invention.
  • FIGS. 2a, 2b, 2c and 2d are right side only schematic cross-sectional views of the apparatus of FIG. 2 in various stages of operation.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, the general structure of a subsea casing cementing plug system 1 embodying the invention will be described.
  • System 1 comprises a rig portion 2 supported by a rig floor 3 above sea surface 4, an ocean portion 5 between rig floor 3 and an ocean floor 6, and a subsurface portion 7 below ocean floor 6.
  • Rig portion 2 comprises a plug container 8, a top releasing plug 9, a retractable plunger 1 1, a releasing ball 12, a ball conduit 13, an extendable plunger 14, a cement inlet 16 and an upper portion of a drill pipe 17.
  • Top releasing plug 9 is contained within the top section 10 of plug container 8.
  • a retractable plunger 11 releasably supports top releasing plug 9.
  • Bottom releasing ball 12 is contained within a ball conduit 13 teed into the plug container 8 below plunger 1 1 and abutting an extendable plunger 14.
  • Cement inlet 15 is preferably teed into plug container 8 below plunger 11, although cement inlet 15 could be located anywhere between plunger 11 and subsurface portion 7.
  • Drill pipe 16 extends downwardly from plug container 8.
  • Ocean portion 5 comprises the middle portion of drill pipe 16 and an installation tool 17 attached to the bottom of drill pipe 16.
  • Subsurface portion 7 comprises a casing hanger 18, a cementing head adapter 19, top plug release mechanism 20, inner casing 21, outer casing 22, top cementing plug 23 and bottom cementing plug 24.
  • Casing hanger 18 is affixed in the upper end of outer casing 22 and isolation tool 17 sealingly attached to casing hanger 18, thereby sealingly attaching drill pipe indirectly to subsurface portion 7.
  • Casing hanger l8 supports inner casing 21 within outer casing 22 leaving a casing annulus 25 therebetween.
  • Cementing head adapter 19 hangs downwardly from isolation tool 17 and adapter 19 holds and supports top plug releasing assembly 20.
  • Top plug releasing assembly 20 releasably holds top cementing plug 23, and top cementing plug 23 in turn releasably holds bottom cementing plug 24.
  • Releasing assembly 20 comprises a case 30, a bushing 40, a collar 50, a sleeve 60, a top cementing plug adapter 70, a shear member 80 and a swivel 90.
  • case internally supports a bushing which retains and supports swivel 90 within case 30.
  • Swivel 90 internally supports collar and collar 50 internally supports adapter 70.
  • Adapter 70 internally supports sleeve by means of a shear member 80 connecting the inside surface of adapter to the external surface of sleeve 60.
  • Case 30 is a cylinder with an axial bore 31 connecting an upper end 32 to a lower end 33.
  • Upper internal threads 34 extend from upper end 32 downward a sufficient distance in case 30 to allow solid threaded connection of case 30 to cementing head adapter 19 of FIG. 1.
  • An axial counterbore 35 of diameter greater than axial bore 31 extends upward from lower end 33 to a middle portion 36 of case 30 to produce an annular ledge 37.
  • Ledge 37 can be tapered if desired.
  • Lower internal threads 38 extend upwardly within the counterbore a sufficient distance to insure a solid threaded connection to bushing 40 as below described.
  • a set screw 39 connects case to bushing 40 so as to assure that bushing 24 will not be rotated out of engagement with case 30.
  • Bushing 40 is a cylinder having an axial bore 41 therethrough and an upper external recess 42.
  • Bushing 40 also has an axial counterbore 43 extending downward from its upper end 44 to produce an annular ledge 45.
  • Axial counterbore 43 is provided with a first groove 46 containing a first seal 47 to prevent fluid passage between collar 50 and bushing 40.
  • Annular ledge 45 can be tapered if desired.
  • External recess 42 is provided with a second groove 46a containing a second seal 47a to prevent fluid passage between case 30 and bushing 40.
  • External recess 42 is further provided with a cavity 48 to receive set screw 39, and external recess is provided with external threads 49 corresponding to lower internal threads 38 of case 30.
  • the upper end 44 of bushing 40 forms an annular bearing ledge when bushing 40 is threaded into case 30.
  • Swivel 90 comprises a race bearing 91 and a thrust bearing 92.
  • Thrust bearing 92 is an annular band of substantially the same annular area as the annular hearing ledge formed by the upper end 44 of bushing 40 within case 30, and thrust bearing 92 is placed atop the upper end 44 of bushing 40.
  • Race bearing 91 has an annular cross-section of substantially the same area as both thrust bearing 92 and upper end 44, and race bearing 91 rests rotatably atop thrust bearing 92.
  • Race bearing 91 can be tapered if desired.
  • Collar 50 comprises an upper contractible ledge portion 51, an upper fingered portion 52, a middle body portion 53, a lower fingered portion 54 and a lower expandable ledge portion 55.
  • Upper finger portion 52 is of sufficient length to reach from the upper inside rim of race bearing 91 down past thrust bearing 92 to just above groove 46 of bushing 40.
  • Portion 52 is slotted and of reduced thickness to allow inward bending thereof.
  • Lower fingered portion 54 is of sufficient length to reach from just below groove 46 down to re cess 77 of top cementing plug adapter 70, as described below.
  • Portion 54 is slotted and of reduced thickness to allow outward bending thereof.
  • Body portion 53 connects portions 52 and 54 and covers seal 47 of bushing 40.
  • Body portion 53 has an external diameter greater than the diameter of axial bore 41 but less than the diameter of counterbore 43 so that downward movement of body portion 53 is limited by annular shoulder 45.
  • Contractible ledge portion 51 has an outer ledge 56 adapted to fit on the upper rim of race bearing 91 when restrained by flared end 61 of sleeve 60, as below described.
  • Expandable ledge portion has an inner ledge 57 adapted to fit within an external recess 77 of top cementing plug adapter 70 as below described.
  • Expandable ledge portion 55 is inwardly restrained byaxial bore 41 of bushing 40.
  • Top cementing plug adapter 70 is an annular cylinder having an upper section 71, a mid section 72 and a bottom section 73.
  • An axial bore 74 extends through bot- I tom section 73 while a counter bore 75, of diameter greater than axial bore 74, extends through upper section 71 and mid section 73 to form a lower internal annular shoulder 76.
  • Mid section 72 is provided with an external recess 77 adapted to conform to the periphery of inner ledge 57 of expandable ledge portion 55 of collar 50.
  • Upper section 71 of adapter 70 is provided with an external groove 71a holding a seal 71b. Seal 71b abuts body portion 53 of collar 50 so as to prevent fluid passage between collar 50 and adapter 70.
  • Upper portion 71 also has a shear hole 81 to contain the adapter end 82 of shear member 80.
  • Shear hole 81 is adjacent a corresponding shear recess 65 of sleeve 60, as below described.
  • Mid section 72 of adapter 70 is provided with an internal recess 78 for reasons described below.
  • Recess 78 produces an upper internal annular shoulder 76a and a further recess of lower internal annular shoulder 76.
  • Bottom section 73 is provided with external threads 79 adapted to receive corresponding threads of top cementing plug 23 of FIG. 1.
  • Sleeve 60 is a cylinder having an axial bore 61 comprises an upper externally flared section 64.
  • Flared end 62 is provided with a landing surface 65 adapted to sealingly receive the top release plug 9 of FIG. 1 in a conventional manner, thereby sealing axial bore 31 of case 30 from fluid passage in cooperation with seals 46, 46a, 71a described above and seal 66 below described.
  • Flared end 62 has an external diameter just slightly less than the internal diameter of upper contractible ledge portion 51 of collar 50 so that flared end 62 restrains ledge 56 on race bearing 91 so long as flared end 62 is abutting ledge portion 5 1.
  • Lower section 64 is provided with a shear recess 65 adapted to receive the sleeve end 83 of shear member 80 so as to hold sleeve 60 in position with flared end 62 abutting ledge portion 51 of collar 50.
  • Lower section 64 is also provided with an external seal groove 67 holding a seal 66 which abuts axial counterbore 75 of adapter so as to prevent fluid passage between adapter 70 and sleeve 60.
  • Lower section 64 is further provided with an external lock recess 68 holding an expandable locking ring 69 adapted to expand into recess 78 as below described.
  • Mid section 63 and lower section 64 have an external diameter slightly less than the diameter of axial counterbore but greater than axial bore 74 so that downward movement of sleeve 60 within adapter 70 is limited by shoulder 76.
  • Lower section 64 can be provided with an axial counterbore 69a to produce an annular latching shoulder 69a which can cooperate with top releasing plug 9 to keep plug 9 in sealing position with landing surface 65 and axial bore 61 once top releasing plug has there landed as below described.
  • Shear member 80 comprises a sleeve end 83, and an adapter end 82 and portions therebetween. Shear member is held by shear hole 81 in adapter 70 and shear recess 65 of sleeve 60 as previously described, so that sufficient downward force on sleeve 60 will shear the shear member 80 and thereby initiate release of top cementing plug 23 of FIG. 1 in the manner below described.
  • FIGS. 2a-2d which show top plug releasing mechanism 20 in four sequential stages of operation, those stages being the fully restrained stage of FIG. 2a, the sleeve released stage of FIG. 2b, the collar released stage of FIG. 20 and the adapter released position of FIG. 2d.
  • mechanism 20 is put in the fully restrained position as has been previously described in connection with FIG. 2.
  • plug release operation is commenced in conventional manner by droppingbottom plug releasing ball 13 through drill pipe 16 into a sealing position within bottom cementing plug 24 and pumping cement into drill pipe 16 via cement inlet 15.
  • Continued pumping causes shearing of pins (not shown) holding bottom plug 24 to top cementing plug 23 and bottom plug 24 is released and passes downhole in a conventional manner.
  • top releasing plug 9 is dropped by retracting plunger 1 1 and ceasing pumping of cement and commencing pumping of a typical displacing fluid such as drilling mud.
  • top releasing plug 9 when top releasing plug 9 reaches landing surface 65 and latches, in conventional ,manner, to annular latching shoulder 69a, thereby sealing off axial bore 61 of sleeve 60 to fluid passage, the release operation of top plug releasing mechanism 20 begins.
  • the mechanism will remain in the fully restrained position of FIG. 2a until a predetermined release pressure is reached in axial bore 31.
  • a sufficient downward force is exerted on sleeve 60 to shear shear member 80, thereby releasing sleeve 60 to travel downward in adapter 70, as shown in FIG. 2b. This downward movement is limited by annular shoulder 76.
  • axial bore 41 may thus be opened to fluid passage
  • axial bore 61 of sleeve 60 is still sealed by top releasing plug 9 to prevent fluid passage through axial bore 61.
  • Fluid passage around adapter 70 is prevented by the wipers of the top cementing plug 23 attached to threads 79 of adapter 70.
  • race bearing 91 and 92 allows free rotation of collar 50 within bushing thereby allowing rotation of adapter 70, which is initially held within collar to rotate freely.
  • plugs 23 and 24 are free to rotate relatively to cementing head adapter 19. This rotational freedom acts to prevent premature release of plug 23 caused by rotational forces tending to rotate plug 23 relative to cementing head adapter 19.
  • An alternate means of limiting upward movement of collar 50 would be limiting upward movement of adapter 70 by shaping top cementing plug 23 so as to abut the lower edge of bushing 40 when attached to adapter 70, and thereby prevent adapter 70 from upward movement. Preventing upward movement of adapter 70 would prevent upward movement of collar 50, attached thereto.
  • Apparatus for attaching an object to a pipe having an internal ledge and releasing the object in response to the combination of both the landing of a closure member within said apparatus and subsequent internal pressurization of the pipe, comprising:
  • a. collar means having a contractible partially continuous external ledge, for releasably interlocking with and partially continuously contacting said internal ledge of the pipe;
  • sleeve means having an axial bore, for receiving the closure member and outwardly restraining said contractible external ledge only until the closure member has been landed on said sleeve means and a given internal pressure has been sustained within the pipe, said sleeve means being at least partly disposed within said collar means;
  • sealing means between said closure member and the pipe, for internally sealing the pipe when the closure member has landed on said sleeve means.
  • swivel means between the pipe and said adapter for allowing rotation of said adapter relative to the pipe.
  • said collar means also includes expandable lower internal ledge means for releasably interlocking with a portion of said adapter means.
  • restraint means connected to said pipe, for maintaining said internal ledge means engaged with said portion of said adapter until after said external ledge has been released from said internal ledge of said pipe.
  • restraint means connected to said housing, for maintaining said internal ledge means engaged with said portion of said adapter until after said external ledge has been released from said internal ledge of said pipe.
  • first restraint means connected to said sleeve means and said adapter means, for releasably attaching said sleeve means to said adapter means and maintaining the position of said sleeve means with respect to said contractible ledge until the closure member has landed on said sleeve means and said given internal pressure has been reached within the pipe.
  • Apparatus as recited in claim 8 further comprisa. limit means, attached to the pipe, for limiting the downward movement of said collar within the pipe;
  • release means attached to said collar means, for fully releasing said adapter from said collar when full downward movement of said collar within the pipe has occurred.
  • said collar means is a double collet spring having a contractible upper external ledge and an expandable lower internal ledge;
  • said limit means further comprises a second internal annular ledge on the pipe and a corresponding body portion of said double collet spring, said body portion having an outer diameter greater than the diameter of the internal rim of said second ledge of the pipe, whereby downward movement of said body portion brings said body portion into restraining contact with said second ledge of the pipe.
  • said limit means includes an annular shoulder of said pipe and a body portion of said collar means, said body portion being of an external diameter greater than the internal diameter of said annular shoulder and less than the internal diameter of a middle portion of the pipe immediately above said annular shoulder, whereby said collar means can move downward relative said pipe only until said body portion abuts said annular shoulder.
  • said limit means includes an annular shoulder of said housing a body portion of said collar means, said body portion being of an external diameter greater than the internal diameter of a middle portion of the housing immediately above said annular shoulder, whereby said collar means can move downward in said housing only until said body portion abuts said annular shoulder.
  • Apparatus for attaching an object to a pipe having an internal ledge and releasing the object in response to the combination of both the landing of a clo- 10 sure member within said apparatus and the subsequent internal pressurization of the pipe, comprising:
  • a. a housing which comprises:
  • a bottom section connected to said lower section, having a fourth axial bore of diameter less than said second axial bore so as to create an annular shoulder between said middle portion and said bottom section;
  • a collar carried within said housing, which comprises:
  • a sleeve carried within said collar, which comprises:
  • an adapter carried within said collar, which comprises:
  • connecting member means releasably affixing said sleeve in a first position within said adapter so that 7 said adapter may assume a second position within said adapter.
  • Apparatus as recited in claim 13, further comprising:
  • said swivel means comprises an annular race bearing and an annular thrust bearing.
  • said collar means also includes expandable lower internal ledge means for releasably interlocking with a portion of said adapter means.
  • a well cementing plug apparatus for use in cementing a casing in a well bore by flowing a fluid into the casing, comprising:
  • a cementing plug having a passage therethrough for the flow of fluid from said housing passage into said casing
  • closure member means in said fluid, for closing said plug passage
  • releasable means for connecting said plug to said housing and releasing said plug means from said housing in response to the pressure of said fluid in said housing upon closing of said plug passage, said releasable means comprising:
  • collar means having a contractible partly continuous external ledge, for releasable interlocking with a partially continuously said internal ledge of said housing
  • sleeve means having an axial bore therethrough for the flow of fluid through said sleeve means and having a flared end for receiving the closure member and outwardly restraining said contractible external ledge of said collar means only until the closure member has landed on said sleeve means a certain fluid pressure is reached within said housing, said sleeve means being at least partly disposed within said collar means;
  • sealing means between said closure member and housing, for internally sealing the plug passage when the closure member has landed on said sleeve means.
  • a well cementing plug apparatus as recited in claim 17, further comprising:
  • swivel means between the pipe and said adapter for allowing rotation of said adapter relative to the pipe.
  • a well cementing plug apparatus as recited in claim 19, further comprising:
  • first restraint means connected to said sleeve means and said adapter means, for releasably attaching said sleeve means to said adapter means and maintaining the position of said sleeve means with respect to said adapter means until the closure member has landed on said sleeve means and said given internal pressure has been reached within the pipe.
  • a well cementing plug apparatus as recited in claim 21, further comprising:
  • a. limit means attached to the pipe, for limiting the downward movement of said collar within the pipe;
  • release means attached to said collar means, for fully releasing said adapter from said collar when full downward movement of said collar within the pipe has occurred.
  • a well cementing plug apparatus as recited in claim 22, wherein:
  • said collar means is a double collet spring having a contractible upper external ledge and an expandable lower intemal ledge;
  • said limit means further comprises a second internal annular ledge on the pipe and a corresponding body portion of said double collet spring, said body portion having an outer diameter greater than the diameter of the internal rim of said second ledge of the pipe, whereby downward movement of said body portion brings said body portion into restraining contact with said second ledge of the pipe.
  • a well cementing plug launching apparatus for
  • collar means releasably connecting said adapter to said housing, for releasing said adapter from said housing in at least a distinct two-step sequential delayed response to sustained pressure in said conduit following landing of said closure member in said apparatus, said release means including:
  • first bendable finger means for releasably interlooking with said annular shoulder of said housing
  • second bendable finger means for releasably interlocking with said annular shoulder of said adapter.
  • restraint means attached to said adapter means, for restraining movement of said collar means until said closure member has landed in said apparatus and a predetermined pressure is reached within said conduit.
  • said first bendable finger means includes a contractible ledge, said contractible ledge being associated with the first step of said two distinct steps of said sequential response.
  • said second bendable finger means includes an expandable ledge, said expandable ledge being associated with the second step of said two distinct steps of said sequential response.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
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US513964A 1974-10-11 1974-10-11 Double collet release mechanism Expired - Lifetime US3915226A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US513964A US3915226A (en) 1974-10-11 1974-10-11 Double collet release mechanism
CA233,252A CA1019238A (en) 1974-10-11 1975-08-11 Double collet release mechanism
GB34305/75A GB1480865A (en) 1974-10-11 1975-08-18 Controlled release apparatus applicable to releasable conduit connections
NL7510475.A NL160359C (nl) 1974-10-11 1975-09-05 Inrichting voor het voor lancering losmaakbaar vasthouden van een cementeerplug in een boorputkop.
IT26999/75A IT1042354B (it) 1974-10-11 1975-09-08 Meccanismo di sgancio a doppia bussola
FR7529019A FR2287579A1 (fr) 1974-10-11 1975-09-22 Appareil d'accrochage et de decrochage d'un objet dans un tuyau
BR7506288*A BR7506288A (pt) 1974-10-11 1975-09-29 Aparelho para prender um objeto em um tubo e aparelho para bujao de cimentacao de poco
DK450975A DK450975A (da) 1974-10-11 1975-10-07 Dobbelt klemmepatronudlosermekanisme
DE19757532012U DE7532012U (de) 1974-10-11 1975-10-08 Geraet zur befestigung eines objektes an einem rohr
DE2545090A DE2545090C3 (de) 1974-10-11 1975-10-08 Vorrichtung zur lösbaren Befestigung eines Objekts an einem rohrförmigen Gehäuse
JP12234275A JPS5421161B2 (ref) 1974-10-11 1975-10-09
NO753435A NO146248C (no) 1974-10-11 1975-10-10 Anordning for loesbart feste av en gjenstand, f.eks. en borehullsementeringsplugg til en roerformet kapsling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US513964A US3915226A (en) 1974-10-11 1974-10-11 Double collet release mechanism

Publications (1)

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US3915226A true US3915226A (en) 1975-10-28

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Application Number Title Priority Date Filing Date
US513964A Expired - Lifetime US3915226A (en) 1974-10-11 1974-10-11 Double collet release mechanism

Country Status (11)

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US (1) US3915226A (ref)
JP (1) JPS5421161B2 (ref)
BR (1) BR7506288A (ref)
CA (1) CA1019238A (ref)
DE (2) DE2545090C3 (ref)
DK (1) DK450975A (ref)
FR (1) FR2287579A1 (ref)
GB (1) GB1480865A (ref)
IT (1) IT1042354B (ref)
NL (1) NL160359C (ref)
NO (1) NO146248C (ref)

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042014A (en) * 1976-05-10 1977-08-16 Bj-Hughes Inc. Multiple stage cementing of well casing in subsea wells
US4232888A (en) * 1978-06-19 1980-11-11 Baker International Corporation Wireline releasable seal connector for wellpipe strings
US4307902A (en) * 1979-07-13 1981-12-29 Otis Engineering Corp. Riser connector
US4349071A (en) * 1980-11-07 1982-09-14 Dresser Industries, Inc. Cement retainer and setting tool assembly
US4398601A (en) * 1981-01-27 1983-08-16 Otis Engineering Corporation Parking tool for pumpdown well completion system
US4613161A (en) * 1982-05-04 1986-09-23 Halliburton Company Coupling device
US4624312A (en) * 1984-06-05 1986-11-25 Halliburton Company Remote cementing plug launching system
EP0306306A1 (en) * 1987-09-04 1989-03-08 Halliburton Company Sub-surface release for plug assembly
US4907649A (en) * 1987-05-15 1990-03-13 Bode Robert E Restriction subs for setting cement plugs in wells
US5020591A (en) * 1989-09-11 1991-06-04 Shore James B Oil tool coupling device
US5036922A (en) * 1990-03-30 1991-08-06 Texas Iron Works, Inc. Single plug arrangement, lock therefor and method of use
US5152554A (en) * 1990-12-18 1992-10-06 Lafleur Petroleum Services, Inc. Coupling apparatus
US5348351A (en) * 1990-12-18 1994-09-20 Lafleur Petroleum Services, Inc. Coupling apparatus
US5553667A (en) * 1995-04-26 1996-09-10 Weatherford U.S., Inc. Cementing system
US5762139A (en) * 1996-11-05 1998-06-09 Halliburton Company Subsurface release cementing plug apparatus and methods
US5971079A (en) * 1997-09-05 1999-10-26 Mullins; Albert Augustus Casing filling and circulating apparatus
US6056053A (en) * 1995-04-26 2000-05-02 Weatherford/Lamb, Inc. Cementing systems for wellbores
US6082451A (en) * 1995-04-26 2000-07-04 Weatherford/Lamb, Inc. Wellbore shoe joints and cementing systems
US6173777B1 (en) 1999-02-09 2001-01-16 Albert Augustus Mullins Single valve for a casing filling and circulating apparatus
US6390190B2 (en) 1998-05-11 2002-05-21 Offshore Energy Services, Inc. Tubular filling system
GB2373800A (en) * 2001-03-27 2002-10-02 Baker Hughes Inc Wiper plug delivery apparatus and method
US6675889B1 (en) 1998-05-11 2004-01-13 Offshore Energy Services, Inc. Tubular filling system
US6779599B2 (en) 1998-09-25 2004-08-24 Offshore Energy Services, Inc. Tubular filling system
US20090188664A1 (en) * 2008-01-28 2009-07-30 Smith Jr Sidney K Launching Tool for Releasing Cement Plugs Downhole
US20090250217A1 (en) * 2008-04-03 2009-10-08 Earl Webb Plug Release Apparatus
US20100282478A1 (en) * 2009-05-07 2010-11-11 Greg Giem Activation-Device Launcher For A Cementing Head
US20110232898A1 (en) * 2010-03-23 2011-09-29 Baker Hughes Incorporated Engaging device
US20150330181A1 (en) * 2014-05-16 2015-11-19 Weatherford/Lamb, Inc. Surge immune stage system for wellbore tubular cementation
WO2020131782A1 (en) * 2018-12-21 2020-06-25 Dril-Quip, Inc. Release mechanism for mechanically locked wiper plug system
US11142992B1 (en) * 2020-09-09 2021-10-12 Baker Hughes Oilfield Operations Llc Plug release system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5020597A (en) * 1990-02-01 1991-06-04 Texas Iron Works, Inc. Arrangement and method for conducting substance and lock therefor
CN118065816B (zh) * 2024-04-25 2024-06-18 德州地平线石油科技股份有限公司 一种电控开启式分级注水泥器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364996A (en) * 1966-02-04 1968-01-23 Brown Oil Tools Apparatus for cementing well liners
US3545542A (en) * 1968-06-10 1970-12-08 Byron Jackson Inc Cementing plug launching apparatus
US3616850A (en) * 1970-04-20 1971-11-02 Byron Jackson Inc Cementing plug launching mandrel
US3635288A (en) * 1969-12-29 1972-01-18 Maurice P Lebcurg Liner-cementing apparatus
US3789925A (en) * 1971-04-23 1974-02-05 C Brown Anchoring assembly for anchoring well equipment within a tubular well conduit
US3796260A (en) * 1972-01-10 1974-03-12 Halliburton Co Multiple plug release system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3364996A (en) * 1966-02-04 1968-01-23 Brown Oil Tools Apparatus for cementing well liners
US3545542A (en) * 1968-06-10 1970-12-08 Byron Jackson Inc Cementing plug launching apparatus
US3635288A (en) * 1969-12-29 1972-01-18 Maurice P Lebcurg Liner-cementing apparatus
US3616850A (en) * 1970-04-20 1971-11-02 Byron Jackson Inc Cementing plug launching mandrel
US3789925A (en) * 1971-04-23 1974-02-05 C Brown Anchoring assembly for anchoring well equipment within a tubular well conduit
US3796260A (en) * 1972-01-10 1974-03-12 Halliburton Co Multiple plug release system

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042014A (en) * 1976-05-10 1977-08-16 Bj-Hughes Inc. Multiple stage cementing of well casing in subsea wells
US4232888A (en) * 1978-06-19 1980-11-11 Baker International Corporation Wireline releasable seal connector for wellpipe strings
US4307902A (en) * 1979-07-13 1981-12-29 Otis Engineering Corp. Riser connector
US4349071A (en) * 1980-11-07 1982-09-14 Dresser Industries, Inc. Cement retainer and setting tool assembly
US4398601A (en) * 1981-01-27 1983-08-16 Otis Engineering Corporation Parking tool for pumpdown well completion system
US4613161A (en) * 1982-05-04 1986-09-23 Halliburton Company Coupling device
US4624312A (en) * 1984-06-05 1986-11-25 Halliburton Company Remote cementing plug launching system
EP0167285A3 (en) * 1984-06-05 1986-11-26 Halliburton Company Remote cementing plug launching system
US4907649A (en) * 1987-05-15 1990-03-13 Bode Robert E Restriction subs for setting cement plugs in wells
EP0306306A1 (en) * 1987-09-04 1989-03-08 Halliburton Company Sub-surface release for plug assembly
US5020591A (en) * 1989-09-11 1991-06-04 Shore James B Oil tool coupling device
US5036922A (en) * 1990-03-30 1991-08-06 Texas Iron Works, Inc. Single plug arrangement, lock therefor and method of use
US5152554A (en) * 1990-12-18 1992-10-06 Lafleur Petroleum Services, Inc. Coupling apparatus
US5282653A (en) * 1990-12-18 1994-02-01 Lafleur Petroleum Services, Inc. Coupling apparatus
US5348351A (en) * 1990-12-18 1994-09-20 Lafleur Petroleum Services, Inc. Coupling apparatus
US5553667A (en) * 1995-04-26 1996-09-10 Weatherford U.S., Inc. Cementing system
US5787979A (en) * 1995-04-26 1998-08-04 Weatherford/Lamb, Inc. Wellbore cementing system
US5813457A (en) * 1995-04-26 1998-09-29 Weatherford/Lamb, Inc. Wellbore cementing system
US6056053A (en) * 1995-04-26 2000-05-02 Weatherford/Lamb, Inc. Cementing systems for wellbores
US6082451A (en) * 1995-04-26 2000-07-04 Weatherford/Lamb, Inc. Wellbore shoe joints and cementing systems
US5762139A (en) * 1996-11-05 1998-06-09 Halliburton Company Subsurface release cementing plug apparatus and methods
US5971079A (en) * 1997-09-05 1999-10-26 Mullins; Albert Augustus Casing filling and circulating apparatus
US6415862B1 (en) 1998-05-11 2002-07-09 Albert Augustus Mullins Tubular filling system
US6722425B2 (en) 1998-05-11 2004-04-20 Offshore Energy Services, Inc. Tubular filling system
US6390190B2 (en) 1998-05-11 2002-05-21 Offshore Energy Services, Inc. Tubular filling system
US6604578B2 (en) 1998-05-11 2003-08-12 Albert Augustus Mullins Tubular filling system
US6675889B1 (en) 1998-05-11 2004-01-13 Offshore Energy Services, Inc. Tubular filling system
US6715542B2 (en) 1998-05-11 2004-04-06 Albert Augustus Mullins Tubular filling system
US6779599B2 (en) 1998-09-25 2004-08-24 Offshore Energy Services, Inc. Tubular filling system
US6173777B1 (en) 1999-02-09 2001-01-16 Albert Augustus Mullins Single valve for a casing filling and circulating apparatus
US6527057B2 (en) 2001-03-27 2003-03-04 Baker Hughes Incorporated Wiper plug delivery apparatus
GB2373800B (en) * 2001-03-27 2004-09-08 Baker Hughes Inc Wiper plug delivery apparatus
GB2373800A (en) * 2001-03-27 2002-10-02 Baker Hughes Inc Wiper plug delivery apparatus and method
US20090188664A1 (en) * 2008-01-28 2009-07-30 Smith Jr Sidney K Launching Tool for Releasing Cement Plugs Downhole
US7845400B2 (en) * 2008-01-28 2010-12-07 Baker Hughes Incorporated Launching tool for releasing cement plugs downhole
US8276665B2 (en) 2008-04-03 2012-10-02 Halliburton Energy Services Inc. Plug release apparatus
US20090250217A1 (en) * 2008-04-03 2009-10-08 Earl Webb Plug Release Apparatus
US20100282478A1 (en) * 2009-05-07 2010-11-11 Greg Giem Activation-Device Launcher For A Cementing Head
WO2010127801A3 (en) * 2009-05-07 2011-01-20 Services Petroliers Schlumberger Activation-device launcher for a cementing head
US8302698B2 (en) 2009-05-07 2012-11-06 Schlumberger Technology Corporation Activation-device launcher for a cementing head
US20110232898A1 (en) * 2010-03-23 2011-09-29 Baker Hughes Incorporated Engaging device
US8408291B2 (en) * 2010-03-23 2013-04-02 Baker Hughes Incorporated Engaging device
US20150330181A1 (en) * 2014-05-16 2015-11-19 Weatherford/Lamb, Inc. Surge immune stage system for wellbore tubular cementation
US10246968B2 (en) * 2014-05-16 2019-04-02 Weatherford Netherlands, B.V. Surge immune stage system for wellbore tubular cementation
WO2020131782A1 (en) * 2018-12-21 2020-06-25 Dril-Quip, Inc. Release mechanism for mechanically locked wiper plug system
GB2593993A (en) * 2018-12-21 2021-10-13 Dril Quip Inc Release mechanism for mechanically locked wiper plug system
GB2593993B (en) * 2018-12-21 2022-09-28 Dril Quip Inc Release mechanism for mechanically locked wiper plug system
US11828130B2 (en) 2018-12-21 2023-11-28 Dril-Quip, Inc. Release mechanism for mechanically locked wiper plug system
US11142992B1 (en) * 2020-09-09 2021-10-12 Baker Hughes Oilfield Operations Llc Plug release system

Also Published As

Publication number Publication date
CA1019238A (en) 1977-10-18
DE2545090C3 (de) 1978-07-20
DE2545090B2 (de) 1977-12-01
NO753435L (ref) 1976-04-13
NL160359C (nl) 1979-10-15
JPS5421161B2 (ref) 1979-07-28
JPS5163301A (ref) 1976-06-01
NO146248C (no) 1982-08-25
DE7532012U (de) 1978-10-26
NL7510475A (nl) 1976-04-13
GB1480865A (en) 1977-07-27
DE2545090A1 (de) 1976-04-15
IT1042354B (it) 1980-01-30
FR2287579B1 (ref) 1982-10-08
NL160359B (nl) 1979-05-15
DK450975A (da) 1976-04-12
NO146248B (no) 1982-05-18
BR7506288A (pt) 1976-08-17
FR2287579A1 (fr) 1976-05-07

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