US3589667A - Combination well blowout preventer - Google Patents

Combination well blowout preventer Download PDF

Info

Publication number
US3589667A
US3589667A US800850A US3589667DA US3589667A US 3589667 A US3589667 A US 3589667A US 800850 A US800850 A US 800850A US 3589667D A US3589667D A US 3589667DA US 3589667 A US3589667 A US 3589667A
Authority
US
United States
Prior art keywords
stopper
plug
combination
housing
passage
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
US800850A
Other languages
English (en)
Inventor
George E Lewis
Fernando Murman
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.)
Hydril LLC
Original Assignee
Hydril LLC
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 Hydril LLC filed Critical Hydril LLC
Application granted granted Critical
Publication of US3589667A publication Critical patent/US3589667A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • 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
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers
    • E21B33/064—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers specially adapted for underwater 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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater well heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/03—Valves operated by gear mechanisms, e.g. rack and pinion mechanisms
    • 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
    • E21B2200/04—Ball valves

Definitions

  • This invention relates generally to oil well drilling operations, and more particularly concerns apparatus useful in controlling and preventing well blowouts.
  • Well blowout control and prevention equipment may be categorized as either of the type which closes the well by constricting about apparatus such as a drill string run in the well, or of the type which positively blocks the entire well passage.
  • the former equipment is generally described in U.S. Pat. No. 2,609,836, whereas the latter equipment is exemplified by safety valves and ram-type preventers.
  • safety valves and ram-type preventers In many cases it is desired to incorporate both types of equipment in wellhead apparatus for increased safety; however, the possible combination of well-constricting equipment with rotary plug safety valve equipment at the wellhead (with or without ram-type preventers) has been considered as presenting certain difficulties.
  • the invention basically comprises a housing structure defining vertically spaced chambers; an inwardly constrictable packer annulus in one of the chambers for forming therewith a vertical passage through which tubular goods may be run; an annular piston movable upwardly in that one chamber to constrict the packer for reducing the opening; a plug stopper having a through opening and mounted to rotate in another of the chambers tobeing the stopper opening into and out of registration with the passage; and the housing structure including a section at the side of the plug opposite that one chamber and which is removable to provide direct access to the plug. Accordingly, the stopper may be easily removed for replacement of seal structure to be described.
  • elastomer-sealing means filling that space between the stopper and chamber inner wall, the sealant extending annularly about the through opening in the stopper when the latter is in flow-passing registration with the passage, whereby sand and other particles cannot fill into that space and impede stopper rotation.
  • a metallic seal ring may be provided to form a portion of the passage adjacent the plug, with which the metal seal has sliding and sealing contact, that ring acting to confine the elastomer-scaling means against pressure induced displacement from that space.
  • the elastomer-sealing means may be formed at two generally hemispherical sections, which are removable for replacement when the housing section is removed, as described. Those sections may have terminals so located as not to be exposed to line pressure during rotation of the stopper opening in communication with those terminals; also retainer structure may block inward deflection of those terminals.
  • stoppersupporting trunnions are accommodated by the housing and sealing structure described, the trunnions being removable with the stopper, and there being operator means at the housing exterior and connected to rotate one trunnion to rotate the stopper between limits, as provided by operator piston means.
  • the invention comprises, in combination with the stopper and trunnion, an annulus such as a sleeve extending about the trunnion, and seal ring structure having a first portion extending closely about the sleeve to seal off between the latter and body; and a second portion extending about the stopper in nonsealing relation therewith to permit stopper rotation while the second portion seals off the body sections, as will be described.
  • the ring structure includes a third portion like the first portion and extending about a second sleeve received over a second trunnion integral with the stopper, the trunnions rotating with the stopper but within the sleeves.
  • Another aspect of the invention concerns the provision of a seal ring structure as described, to be used with a plug stopper having trunnions and sleeves received on the trunnions.
  • FIG. l is an elevation taken in section, showing the overall invention
  • FIG. 2 is an elevation taken in section on line2-2 of FIG. 1;
  • FIG. 3 is a perspective showing of the plug stopper of FIGS. 11 and 2, with seal ring structure mounted on sleeves on the stopper trunnions;
  • FIG. 4 is an end elevation of the FIG. 3 assembly taken on line 4-4 of FIG. 3;
  • FIG. 5 is a top plan view of the FIG. 3 assembly, taken on line 5-5 of FIG. 3;
  • FIG. 6 is a perspective view showing the seal ring structure
  • FIG. 7 is an elevation showing the blowout control equipment of the invention installed in subsea wellhead assembly
  • FIG. 3 is an elevation showing a modified safety valve seal arrangement.
  • the control head or preventer assembly includes a body member 11, having concentric bores 12, 113 and 14, which are of progressively increased diameters.
  • Cap 16 is releasably held to the body member by screw-threaded connection 17 in such a position that the fade 19 of cap flange 20 engages the upper end 2i. of the body member 11, the cap and body member being packed off at 22.
  • Cap 16 has a bore 23 which is of the same diameter and is concentric with body bore 12.
  • Sunk in the upper face of cap 16 are boltholes 24 for the attachment of equipment thereabove.
  • the annular groove 25, in that upper face, is adapted toreceive a sealing ring for sealing engagement with said equipment.
  • the body member 11 has an attachment flange 27 whereby connection is made through bolts 28 to the flange 29 of body lower section 30 defining bore 12.
  • Cap 16 has an internal annular flange 35 which defines the downward continuation of bore 23, and a peripheral flange 36 which defines bore 37, said bore 37 being concentric with all the body member bores identified above.
  • the body 11 has an annular, upstanding flange 38 which engages the packer-actuating member 39 at 40 to limit the extent of downward movement of said member.
  • the actuator 39 has a piston portion 41, having piston fit in bore 14, and piston portion 42 which has piston fit in bore 13.
  • the actuator is extended upwardly at 43, extension 43 having piston fit in the bore 37. Sealing rings 44, 45 and 46 are provided between piston portions 412, 41 and 43, respectively, and the respective cylinder-defining walls which receive those portions.
  • Piston 41 divides body bore 141 into upper (first) and lower (second) cylinders or pressure chambers 47 and 48, ports 49 and 50 opening, respectively, from those chambers. External pipes 51 and 52 open to ports 49 and 50 respectively. Note that the outer diameters 14 of chambers 47 and 48 are equal, and the inner diameters l3 and 37 of these chambers are equal, for balancing purposes.
  • the actuator 39 has a downwardly and inwardly tapering conical bore 53, and the actuator portion 43 which defines this bore may be considered broadly as an internal, conical wedge, or as a packer-constricting element.
  • Packet P includes a massive annulus or sleeve 55 of plastic and, preferably, resilient material such as rubber or Neoprene. in most instances, it is intended that a single packer be adapted for repeating opening and closing operations, and therefore it is preferable that it have relatively high resilient characteristics, so it may be self-resorting to open position when the constricting force is removed. From this point on in the description, it will be assumed that the packer has such resilient characteristics, but this assumption is not considered as limitative on my broader claims. It has been found that rubber having a durometer hardness of about 75 is suitable for general use in the packer but, again, this specification of relative hardness is not to be considered as limitative.
  • the packer is shown as an u nsplit, continuous annulus, but it will be understood that the disclosure is not limited to a packer wherein there is no split, so long as there is no angularly extending gap interrupting the continuity of the packer at times when it is radially contracted into sealing engagement with members positioned within its bore.
  • the rigid control elements may be considered as a radially expansible and contractable armature embedded and bonded with annulus 55.
  • Molded annulus 55 has an outer conical face 57 which is complementary to actuator bore 53, and a bore i; which has a central, substantially cylindrical portion 59 and oppositely inclining upper and lower portions 69 and 61, respectively; the outward flare, in each case being toward the associated end of the annulus.
  • each element 56 comprises top and bottom plates 63 and 64, respectively, rigidly connected by vertical rib 65, the outer face 67 of the rib having taper as in dicated. Plates 63, 64 may be considered as transverse flanges on rib 65.
  • Elements 56 which may be of steel, bronze, or any other suitable rigid material, are preferably positioned in the rubber at the time of molding and, preferably, the rubber and the elements are bonded together by the use of suitable bonding agent during the molding process.
  • the plates of the control elements are sectorial in shape, as viewed in plan, and are ar ranged in a circular series, with spaces left between the opposing side edges of the plates, both top and bottom.
  • the plates are so sized that the two opposed side edges of adjacent elements are spaced apart, it following that as the elements move radially inward, the spaces between these, from end-to-end, diminish equally in width, so there is no premature interference of the plates at their inner ends and so the rubber which may flow between the plates during the constriction of the annulus will not be pinched off at the radially inward ends ofthe plates. See US. Pat. No. 2,609,836.
  • annulus 55 is molded so its outer annular portion 72 projects radially outward beyond the outer faces of the plates, it following that these metallic faces do not engage the wall of the actuator bore 53.
  • annular portion 72 is that portion which extends radially from face 57 to the outer faces 67 of ribs 65.
  • a stop is provided in the form of tube 74 which is retained in housing bore 15.
  • the upper end of the tube provides the packer stop.
  • the bore '75 of this tube is of the same diameter as bores 12 and 23, and the tube is annularly spaced from both piston portion 42 and the lower end of actuator wedge portion 43.
  • Ports 76 open from bore 75 to chamber 77, which latter is annularly defined by the tube 74 and the sleeve 80, while it is retained endwise by body wall 78 and the lower end ofsleeve 80.
  • cap 16 When cap 16 is subsequently secured in place, its horizontal undersurface 79 provides a stop for limiting upward movement of the packer, the upper plates 63 of control elements 56 sliding over this surface as the packer is radially constricted or expanded. Upper end of tube 74 and cap surface 79 thus form vertically spaced stops which prevent appreciable vertical movement of the packer with relation to the body member ll. Packer P is thus confined within an upper chamber formed in the housing.
  • the radial constriction of the packer is accomplished by virtue of relative vertical movement between the packer and the actuator. While the illustrated embodiment shows this relative movement as brought about by holding the packer against vertical movement with respect to the body member and then moving the actuator vertically with respect to the housing and packer, it will be understood the arrangement and operation may be reversed.
  • the sleeve 80 may be considered as part of the housing structure ill, to which it is retained by the fastener 81.
  • the sleeve 80 and body ill, together with actuator piston portion 42 form a third chamber 82 to receive control pressure fluid (as via porting 83 and pipe 84) acting to urge the actuator upwardly in at least partly counterbalancing relation to the downward force exertion on the actuator.
  • control pressure fluid as via porting 83 and pipe 84
  • a hydropneumatic accumulator is shown as communicating with pipes 5i and 52 via a suitable pressure regulator 91 and four-way valve 92.
  • pressure fluid is delivered to pipe 51, and pressure fluid in pipe 52 is exhausted at 93 to the sea.
  • pressure fluid is delivered to pipe 52 and fluid in pipe 51 is exhausted to the sea.
  • a suitable electric prime mover 94 controls valve Q2 and a suitable control 95 for the regulator may be surface operated to set the pressure applied to pipes 52 and 52.
  • pressure may be supplied to pipe 84 via regulator 96 and four-way valve 97.
  • Controls for the regulator and valve are indicated at 93 and 99 and may be electrically operated from the surface, to result in selected pressure applications to chamber 82, a cable to the surface being indicated at Control 98 for regulator 96 may be connected via ll ⁇ to annulus or passage 85 to be responsive to mud e packer, so as to effect transmission of regulated pressv .o chamber 82, in response to changes in mud pressure.
  • FIG. 7 shows the control assembly 10 connected in subsea blowout preventer stack F including a unit it? above a series of ram-type preventers 103.
  • a riser system E02 extends above the stack l nd is connected thereto by a wellhead connector 103.
  • Riser pipe extends to the sea surface, and typically to a drilling barge $.64, or other installation.
  • Stack MM) and riser 102 are illustrative only, and may carry the pressure vessel 90 and associated piping and controls referred to above.
  • a lower chamber in the housing llli contains a plug stopper 13l mounted to rotate about horizontal axis 132. Such rotation brings the through opening 133 in the stopper into and out of registration with the vertical passage 134 in the housing.
  • the lower section 30 of the body or housing is removable, as by disconnection of flange 2% from body portion 27 afforded by removal of bolts 28, thereby to produce direct access to the plug stopper enabling removal of the latter.
  • the stopper is supported for rotation by the trunnions or shafts 135 and 136 which project oppositely and in alignment with axis 132.
  • Annuli as for example bearing sleeves 137 and 138 extend about the trunnions and are received in the bores 139 and 140, the upper halves of which are formed by body portion 27, and the lower halves of which are formed by body lower portion 30. Accordingly, upon disconnection of the latter, the sleeves and trunnions are downwardly removable along with the plug stopper, for repair and replacement. This may be accomplished while the flange 1411 of body section remains bolted to wellhead structure therebeneath (bolts 142 affording such connection) the body section 27 and wellhead structure thereabove being elevated.
  • elastomer-sealing means extending annularly about the through opening 133 when the latter is in FIG. 1 position, in registration with passage 134.
  • Such sealing means may typically comprise upper and lower hard rubber hemispheres 1416 and 1 17 which are interengaged along a horizontal plane through axis 132. As seen, those hemispheres extend closely about the inner annular terminals 148 of the nonrotary sleeves 137 and 138 which engage and center the stopper within the housing chamber. O-rings 149 seal off between those terminals and the trunnions.
  • Rubber hemispheres 146 and 147 prevent ingress of sand or foreign matter into the space between the stopper and body during working of the well, eliminating a source of possible malfunction of the plug stopper.
  • Metallic seal rings 150 and 151 carried by the rubber hemispheres are slidably received in body bores 152 and 153 and form portions 134a and 13412 of the passage 134 adjacent the plug stopper 131. These rings have metal-to-metal sealing contact at 154 and 155 with the stopper surface, and act to confine the elastomer material 146 and 147 against pressure induced displacement from the space between the stopper and chamber wall, particularly when the stopper opening is rotated out of registration with passage 134. Note that fluid pressure in the well is applied to end faces 156 and 157 of the seal rings to maintain the rings in contact with the stopper surface.
  • seal ring structure having a portion or portions extending about the trunnion sleeve or sleeves to seal off between the latter and the body bores 139 and 141), and another portion extending about the stopper in nonsealing relation to permit stopper rotation while that ring portion seals off against the body (and specifically between the opposed body faces proximate the horizontal plane through axis 132).
  • FIGS. 3-6 show the seal O-ring portions 160 and 161 which are spaced apart and sized to fit about the sleeve terminals 148 and to extend in upright planes.
  • the seal ring structure also includes portions 162 interconnecting O-rings 161) and 161 and defining a plane normal to the planes 160 and 161, as well as coincident with the horizontal plane through axis 132.
  • Portions 162 are alike and sized to extend about the stopper with clearance therebetween (as seen in FIG. 5) to permit stopper rotation.
  • Portions 1152 are retained or clamped between the body elements 27 and 29, as appears in FIG. 41, to seal off therebetween.
  • the unitary elastomer seal structure 160, 161 and 162 is also removed and may then be replaced if necessary.
  • seal structure 160, 161 and 162 By molding seal structure 160, 161 and 162 as a unit, there is no chance for well fluid outward leakage (or sea water inward leakage) past unconnected segments of installed seal, and this helps to make possible and practical the housing con struction by which the plug stopper and hemispheres 146 and 147 may be removed and replaced, as described.
  • operator means is provided at one side of the housing structure to transmit rotation to the plug stopper.
  • the latter includes a pinion gear 170 keyed at 171 to extension 172 of the trunnion 135 as seen in FIGS. 1 and 2.
  • Gear 170 is carried within a housing 173 bolted at 215 to body section 30 and to body 11 so as to be removable therefrom and with the stopper.
  • housing 173 Located within housing 173 are upper and lower racks 175 and 176 meshing with the pinion gear and integral with pistons 177 and 173.
  • the latter are reciprocable horizontally within cylinders 1'79 and 1811 formed within and by the housing structure as shown, there being endcaps 181 and 182 closing the cylinders at their heads.
  • Caps 181 and 182 limit turning of the plug stopper to an angular range of about these caps, together with caps 181a and 1820 being engaged by opposite ends of the pistons.
  • Rollers 210 and 211 resist side loading of the pistons imposed by the pinion gear 1711.
  • Pressure is transmissible from vessel 90 alternately to ports 191) and 191 under the control of four-way valve 192.
  • An electrically energized valve driver is seen at 195.
  • Control lines for this element is seen at 196, leading to the surface via cable 199.
  • the modified elastomer seals 1416a and 147a are alike, and again function to block ingress of sand or other foreign matter into the space between the stopper and the body.
  • the seals have annular terminals 1 16b and 1417b which we mu tually proximate and extend about the stopper at an angle relative to the passage axis 211) characterized in that the stopper opening 133 is directly exposed to the terminals only when that opening is rotated out of communication with the passage 134.
  • retainer means extending in the modified hemispheric seals 1 16a and 147a and restraining the terminals 14612 and 1471) against inward deflection toward the stopper as the stopper opening traverses those terminals.
  • retainer means comprise metal inserts 215 and 216 extending or embedded in these terminals and about the stopper, with insert portions 215a and 216a looping about the trunnions and 136 and sleeves 137 and 138.
  • the combination comprising a. housing structure defining vertically spaced intercommunicating chambers,
  • annular piston movable upwardly in said one chamber to constrict the annulus for sealing engagement with a well tool in said passage
  • a plug stopper having a through opening and mounted to rotate in another of said chambers to bring said through opening into and out of registration with said passage
  • said housing structure including a section at the side of the plug opposite said one chamber and which is remova' ble to provide direct access to the plug.
  • sealing means includes upper and lower generally hemispheric extents.
  • said operator means includes pressure-responsive reciprocable piston structure, a housing for said piston structure, rack and pinion gearing operable to convert reciprocation of said piston structure to rotation of said shaft, and means to limit the stopper to rotate through an angle of about 90.
  • a flow control assembly comprising a. a body having first and second sections forming a chamber and a stopper received in said chamber, the stopper having an opening extending therethrough and defining a first axis,
  • trunnion means mounting the stopper for rotation within the body about a second axis to carry said opening into and out of flow-passing positions, the body having inlet and outlet passages with which the stopper through opening registers in flow-passing position,
  • seal ring structure having a first portion extending closely about the annulus to seal off between the annulus and body and a second portion extending about the stopper in nonsealing relation therewith to permit rotation of the stopper relative to said ring second portion while said ring second portion seals off against the body, said ring second portion being confined between said body first and second sections, and
  • a housing mounted by one of said sections and defining a passage in alignment with said stopper opening in its flowpassing position, and a constrictable annulus movable in said housing between a constricted condition closing said passage and an expanded condition when said passage is open.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Sliding Valves (AREA)
US800850A 1969-02-20 1969-02-20 Combination well blowout preventer Expired - Lifetime US3589667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80085069A 1969-02-20 1969-02-20

Publications (1)

Publication Number Publication Date
US3589667A true US3589667A (en) 1971-06-29

Family

ID=25179537

Family Applications (1)

Application Number Title Priority Date Filing Date
US800850A Expired - Lifetime US3589667A (en) 1969-02-20 1969-02-20 Combination well blowout preventer

Country Status (5)

Country Link
US (1) US3589667A (fr)
BE (1) BE746264A (fr)
FR (1) FR2031558B1 (fr)
GB (1) GB1249614A (fr)
NL (1) NL7002468A (fr)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098341A (en) * 1977-02-28 1978-07-04 Hydril Company Rotating blowout preventer apparatus
US4177832A (en) * 1977-07-11 1979-12-11 Lee Industries, Inc. Inline ball valve
US4378849A (en) * 1981-02-27 1983-04-05 Wilks Joe A Blowout preventer with mechanically operated relief valve
US4546828A (en) * 1984-01-10 1985-10-15 Hydril Company Diverter system and blowout preventer
US4703807A (en) * 1982-11-05 1987-11-03 Hydril Company Rotatable ball valve apparatus and method
US4828024A (en) * 1984-01-10 1989-05-09 Hydril Company Diverter system and blowout preventer
US5167283A (en) * 1991-12-20 1992-12-01 Abb Vetco Gray Inc. Combination ball valve and annular pipe seal
WO1993002273A1 (fr) * 1991-07-24 1993-02-04 Jacob Olsen Vanne d'arret
US5667014A (en) * 1995-11-24 1997-09-16 Abb Vetco Gray Inc. Self-removing choke insert system
US5979865A (en) * 1995-04-28 1999-11-09 Hi-Kalibre Equipment Ltd. Rotary valve actuator
US6276451B1 (en) * 2000-05-04 2001-08-21 Kelly Funk Pressure relief system for live well snubbing
US6510897B2 (en) 2001-05-04 2003-01-28 Hydril Company Rotational mounts for blowout preventer bonnets
US6554247B2 (en) 2001-05-04 2003-04-29 Hydril Company Quick release blowout preventer bonnet
US20040258470A1 (en) * 2003-06-03 2004-12-23 Hemphill Edward R. Removable seal carrier for blowout preventer bonnet assembly
US20050189119A1 (en) * 2004-02-27 2005-09-01 Ashmin Lc Inflatable sealing assembly and method for sealing off an inside of a flow carrier
US20050252660A1 (en) * 2004-05-12 2005-11-17 Hughes William J Split ball valve
WO2006051324A1 (fr) * 2004-11-13 2006-05-18 Hunting Cromar Limited Dispositif pour decouper un objet souterrain
US20060102359A1 (en) * 2004-11-13 2006-05-18 Brown Gareth E G Valve
US20080142746A1 (en) * 2001-05-04 2008-06-19 Hydril Company Llc Mounts for blowout preventer bonnets
US20120051959A1 (en) * 2010-08-31 2012-03-01 Denso Corporation Fluid machine and seal member used for the same
US20150008351A1 (en) * 2013-07-03 2015-01-08 Thomas A. Hartman Ball valve and method of assembling the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115898307B (zh) * 2023-02-20 2023-05-16 四川圣诺油气工程技术服务有限公司 一种带压起管柱的方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966809A (en) * 1930-09-08 1934-07-17 Harry P Wickersham Control head
US2313177A (en) * 1940-12-03 1943-03-09 Regan Forge & Eng Co Blowout preventer and valve
US2609836A (en) * 1946-08-16 1952-09-09 Hydril Corp Control head and blow-out preventer
US3124334A (en) * 1964-03-10 Rotatable ball valve structure with

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124334A (en) * 1964-03-10 Rotatable ball valve structure with
US1966809A (en) * 1930-09-08 1934-07-17 Harry P Wickersham Control head
US2313177A (en) * 1940-12-03 1943-03-09 Regan Forge & Eng Co Blowout preventer and valve
US2609836A (en) * 1946-08-16 1952-09-09 Hydril Corp Control head and blow-out preventer

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098341A (en) * 1977-02-28 1978-07-04 Hydril Company Rotating blowout preventer apparatus
FR2399534A1 (fr) * 1977-02-28 1979-03-02 Hydril Co Obturateur anti-eruption de puits
US4177832A (en) * 1977-07-11 1979-12-11 Lee Industries, Inc. Inline ball valve
US4378849A (en) * 1981-02-27 1983-04-05 Wilks Joe A Blowout preventer with mechanically operated relief valve
US4703807A (en) * 1982-11-05 1987-11-03 Hydril Company Rotatable ball valve apparatus and method
US4546828A (en) * 1984-01-10 1985-10-15 Hydril Company Diverter system and blowout preventer
US4828024A (en) * 1984-01-10 1989-05-09 Hydril Company Diverter system and blowout preventer
WO1993002273A1 (fr) * 1991-07-24 1993-02-04 Jacob Olsen Vanne d'arret
US5167283A (en) * 1991-12-20 1992-12-01 Abb Vetco Gray Inc. Combination ball valve and annular pipe seal
US5979865A (en) * 1995-04-28 1999-11-09 Hi-Kalibre Equipment Ltd. Rotary valve actuator
US5667014A (en) * 1995-11-24 1997-09-16 Abb Vetco Gray Inc. Self-removing choke insert system
US6276451B1 (en) * 2000-05-04 2001-08-21 Kelly Funk Pressure relief system for live well snubbing
US7802626B2 (en) 2001-05-04 2010-09-28 Hydril Usa Manufacturing Llc Mounts for blowout preventer bonnets and methods of use
US6554247B2 (en) 2001-05-04 2003-04-29 Hydril Company Quick release blowout preventer bonnet
US8230930B2 (en) 2001-05-04 2012-07-31 Hydril Usa Manufacturing Llc Mounts for blowout preventer bonnets and methods of use
US20110005743A1 (en) * 2001-05-04 2011-01-13 Hydril Company Llc Mounts for Blowout Preventer Bonnets and Methods of Use
US20080142746A1 (en) * 2001-05-04 2008-06-19 Hydril Company Llc Mounts for blowout preventer bonnets
US6510897B2 (en) 2001-05-04 2003-01-28 Hydril Company Rotational mounts for blowout preventer bonnets
US7699554B2 (en) 2003-06-03 2010-04-20 Hydril Usa Manufacturing Llc Removable seal carrier for blowout preventer bonnet assembly
US20040258470A1 (en) * 2003-06-03 2004-12-23 Hemphill Edward R. Removable seal carrier for blowout preventer bonnet assembly
US20050189119A1 (en) * 2004-02-27 2005-09-01 Ashmin Lc Inflatable sealing assembly and method for sealing off an inside of a flow carrier
US6966373B2 (en) 2004-02-27 2005-11-22 Ashmin Lc Inflatable sealing assembly and method for sealing off an inside of a flow carrier
US20050252660A1 (en) * 2004-05-12 2005-11-17 Hughes William J Split ball valve
WO2006051324A1 (fr) * 2004-11-13 2006-05-18 Hunting Cromar Limited Dispositif pour decouper un objet souterrain
US7510002B2 (en) 2004-11-13 2009-03-31 Hunting Cromar Limited Apparatus and method for sealing a wellbore
GB2434821A (en) * 2004-11-13 2007-08-08 Hunting Cromar Ltd Device for cutting a downhole object
US20060102359A1 (en) * 2004-11-13 2006-05-18 Brown Gareth E G Valve
US20120051959A1 (en) * 2010-08-31 2012-03-01 Denso Corporation Fluid machine and seal member used for the same
JP2012052455A (ja) * 2010-08-31 2012-03-15 Advics Co Ltd 流体機械およびそれに用いられるシール部材
CN102410209A (zh) * 2010-08-31 2012-04-11 株式会社爱德克斯 流体机械以及在该流体机械中使用的密封部件
US8747089B2 (en) * 2010-08-31 2014-06-10 Advics Co., Ltd. Fluid machine and seal member used for the same
CN102410209B (zh) * 2010-08-31 2015-11-25 株式会社爱德克斯 流体机械以及在该流体机械中使用的密封部件
US20150008351A1 (en) * 2013-07-03 2015-01-08 Thomas A. Hartman Ball valve and method of assembling the same
US20150008352A1 (en) * 2013-07-03 2015-01-08 Thomas A. Hartman Valve with trunnions and method of assembling the same

Also Published As

Publication number Publication date
NL7002468A (fr) 1970-08-24
GB1249614A (en) 1971-10-13
FR2031558A1 (fr) 1970-11-20
FR2031558B1 (fr) 1973-07-13
DE2008034A1 (de) 1970-09-10
BE746264A (fr) 1970-08-20

Similar Documents

Publication Publication Date Title
US3589667A (en) Combination well blowout preventer
US3729170A (en) Rotary plug valve assembly
US5655745A (en) Low profile and lightweight high pressure blowout preventer
US3997198A (en) Swivel joint construction for pressure containing conduit
USRE38249E1 (en) Rotating blowout preventer and method
US3387851A (en) Tandem stripper sealing apparatus
US3915426A (en) Blowout preventer with variable inside diameter
US3737139A (en) Annular blowout preventer
US5251869A (en) Rotary blowout preventer
US3572627A (en) Blowout preventer
US3587734A (en) Adapter for converting a stationary blowout preventer to a rotary blowout preventer
US4354698A (en) Swivel joint construction for pressure containing conduit
US5255890A (en) Ram type blowout preventer
GB2287263A (en) Tubing hangers
US4007904A (en) Annular blowout preventer
US3533468A (en) Well pressure compensated well blowout preventer
US3599711A (en) Diverter
US4602794A (en) Annular blowout preventer with upper and lower spherical sealing surfaces and rigid translation element
AU2011210071A1 (en) Underwater stuffing box and a method for running a drill string through the stuffing box
US3536344A (en) Subsea valve and valve operator assembly
US4358085A (en) Keying means for segmented end ring blowout preventer
US5617917A (en) Integral blowout preventer and flow tee
US3222075A (en) Underwater blowout preventer
US2207149A (en) Blowout preventer
US2313177A (en) Blowout preventer and valve