CN101208495A - Universal tubing hanger suspension assembly and well completion system and method of using same - Google Patents
Universal tubing hanger suspension assembly and well completion system and method of using same Download PDFInfo
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- CN101208495A CN101208495A CN200680017334.3A CN200680017334A CN101208495A CN 101208495 A CN101208495 A CN 101208495A CN 200680017334 A CN200680017334 A CN 200680017334A CN 101208495 A CN101208495 A CN 101208495A
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- pipe hanger
- assembly
- housing
- lower component
- wellhead housings
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
- E21B33/043—Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads
Abstract
A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is positioned in the wellhead housing. The tubing hanger assembly includes a sealing and lockdown mechanism capable of providing sealing and load support of the production tubing in the production casing string. A stab sub assembly connected to the upper end of the tubing hanger suspension assembly and lower end of the Christmas tree assembly provides downhole hydraulic and electric functionality and annulus access to the production tubing.
Description
Background of invention
1. technical field
The present invention relates generally to the subsea wellheads assembly that is used for oil well and gas well, and relates more specifically to be used for the general pipe hanger suspension assembly of subsea wellheads assembly.The invention still further relates to the pipe hanger suspension assembly that is used for land wellhead component.
2. DESCRIPTION OF THE PRIOR ART
Conventional subsea wellheads assembly comprises the wellhead housings that is installed in the plane, seabed.Boring preventer (BOP) group with being installed on the wellhead housings gets out well bore and one after the other the concentric locking collar tubing string is installed in the well bore simultaneously.Usually, each casing string in succession cements in its lower end and comprise the casing hanger that seals with mechanical sealing assembly on it in wellhead housings.
In order to produce cased well, flow string and pipe hanger enter well bore by the BOP group usually, and pipe hanger is settled, sealed and be locked in wellhead housings and/or the casing hanger.When sealing extends through the hole of pipe hanger, remove BOP group, and will gather tree (Christmas tree) and be reduced on the wellhead housings.Gathering tree is the oil field term, and it is meant and is positioned at the well top with the control valve of controlling the gentle flow of oil and the assembly of restriction choke.It is vital remotely forming the operation and the safety that suitably connect well between collection tree, wellhead housings and pipe hanger.
In conventional completion system, gather the top that tree is connected to pipe hanger top wellhead housings.At least one flow string in the pipe hanger supporting is extended along well bore.Pipe hanger provide in the tubing string the production hole and with the pipeline that is communicated with around tubing string and annular space (annulus) in penetralia or production casing post inside.In addition, pipe hanger comprises and is used at tubing string and gathers at least one the vertical production hole of communication of fluid between the corresponding production of the tree hole, and generally includes and be used at pipeline ring hollow and gather at least one perpendicular rings emptying aperture of setting communication of fluid between the respective rings emptying aperture (annulus bore).Pipe hanger can comprise in addition that being used for will controlling fluid and well chemicals or electric power by pipe hanger is communicated to the equipment that is positioned at pipe hanger or pipe hanger below or the one or more maintenances and the control pipeline of position.
Pipe hanger locks onto wellhead housings or the parts that it settles (land) usually hermetically and rigidly.Have conventional the collection in the well of setting, pipe hanger is placed in the wellhead housings.Pipe hanger generally includes the integral type locking mechanism, and this mechanism is fixed to pipe hanger the profile in wellhead housings or the casing hanger when activating.Any pressure subsequently in the artesian well that comes that locking mechanism is guaranteed to act on the pipe hanger can not cause that pipe hanger lifts from wellhead housings, and causes unsafe situation thus.
Global seabed wellhead equipment manufacturer quantity is limited.At present, the principal manufacturer of subsea wellheads housing is ABB Vetco Gray, Cooper Cameron company, Dril-Quip, FMC and Kvaerner.Each principal manufacturer has their own all wellhead housings and casing hanger design, size and details.Usually use from the pipe hanger of the B of manufacturer and/or gather tree and come on the wellhead housings of the A of manufacturer and casing hanger, to finish well.But, because the housing of the A of manufacturer and casing hanger design are distinctive, so do not become wellhead housings and correct interconnection of casing hanger and coupling with the A of manufacturer from the license fee of the A of manufacturer with the building service design with the B of manufacturer, the B of manufacturer just can not and/or gather its pipe hanger set the housing that is connected to the A of manufacturer.This causes producing extra engineering and the cost or the extras (such as shallow pipe) of a great deal of when the equipment of selecting the purchase B of manufacturer is used for the wellhead housings of the A of manufacturer.Because each wellhead housings/system manufacturer has the housing and the casing hanger of a plurality of models with different peculiar details, the equipment stock who sets up on the wellhead equipment that is installed to other manufacturer concerning other manufacturer is unactual or uneconomic.Cost except increasing has also increased the transmission time, and this time is very important concerning the well master.
3. the object of the invention determines
Main purpose of the present invention provides a kind of subsea-completed well system that is suitable for using from all manufacturers' wellhead housings.
Another purpose provides and a kind ofly is suitable for being independent of any peculiar details of wellhead housings and is arranged on pipe hanger assembly in the wellhead housings.
Another purpose provides a kind of general pipe hanger assembly that is applicable to multiple wellhead housings.
Another object of the present invention provides a kind of general pipe hanger assembly that is applicable to the wellhead housings of two or more manufacturers.
Another object of the present invention provides a kind of pipe hanger assembly that is provided with and is designed in the wellhead housings that is placed on land drilling well, and it makes that the pipe hanger assembly is to be independent of the peculiar details of this wellhead housings and size.
Another object of the present invention provides a kind of method that is used for general pipe hanger assembly is installed in wellhead housings, and wherein the information of landing surface is unknown in the wellhead housings.
Summary of the invention
The present invention is presented as pipe hanger suspension assembly and the mounting method thereof that is used for oil well and gas well completion system.The pipe hanger suspension assembly that is used for submarine well or land well comprises the pipe hanger housing that is arranged in the wellhead housings.The pipe hanger assembly comprises sealing and locking mechanism, and sealing and locking mechanism this wellhead housings lower position in the production casing post provides sealing and the load bearing of producing pipe.Being connected pipe hanger hangs from logical upper end and gathers that insertion adapter assembly between the tree assembly lower end provides underground hydraulic pressure and electric functions and to the annular space path of production pipe.
According to completion system setting of the present invention be designed for all manufacturers' wellhead housings.The pipe hanger suspension assembly of preferred embodiment is arranged on the pipe hanger housing in the wellhead housings with comprising any peculiar details of being independent of wellhead housings.The preferred embodiment of pipe hanger suspension assembly is " general ", promptly is applicable to multiple wellhead housings, comprises the wellhead housings of two or more manufacturers.
According to the present invention, the pipe hanger assembly is installed in the wellhead housings, and wherein the wellhead housings supporting is connected to the casing hanger that is lining in (line) well bore casing string.The pipe hanger assembly is provided with the pipe hanger housing, the external diameter setting of pipe hanger housing and be designed to fit in the hole of wellhead housings.The pipe hanger assembly comprises tube-like piece and the lock-in component by the carrying of pipe hanger housing, and the both is provided with and is designed to fit in the casing string.The pipe hanger housing is arranged in the wellhead housings, and tube-like piece and lock-in component be arranged in the casing string, is arranged on several inches places, top, casing hanger top up to the lower surface of pipe hanger housing.Activate the inside of lock-in component against casing string.So, the pipe hanger assembly by with the position of casing string lock-in component below the pipe hanger housing cooperate to come vertical support.
Description of drawings
With reference to accompanying drawing, purpose of the present invention, advantage and feature can be more obvious, and same label is represented same parts in the accompanying drawing, and show illustrative embodiment of the present invention, wherein:
Fig. 1 shows and adds the schematic cross sectional views that cover well bore, wellhead housings, preventer (" the BOP ") group that is connected to wellhead housings and pipe hanger are placed in the casing string in the wellhead housings;
The suspension assembly of pipe hanger according to the preferred embodiment of the invention that Fig. 2 shows is reduced to the schematic cross sectional views that adds in cover well bore and the wellhead housings with the pipe hanger running tool;
Fig. 2 A is the enlarged drawing of the bottom of Fig. 2;
Fig. 3 is the schematic amplification view of the preferred embodiment of the sealing of pipe hanger suspension assembly of Fig. 2 and 2A and lock-in component;
Fig. 4 is the view that is similar to Fig. 2, wherein the sealing and lock-in component is arranged in the casing string and retrievable plug be arranged on production pipe in;
Fig. 5 shows the preferred embodiment schematic cross sectional views that tree is gathered in the seabed, inserts joint and is connected to general pipe hanger suspension assembly and wellhead housings;
Fig. 6 is that the insertion joint is connected to the sectional view according to the general pipe hanger assembly of preferred embodiment of the present invention, and arrow is represented the annular space stream;
Fig. 7 is the sectional view along the insertion joint of the line 7-7 intercepting of Fig. 6;
Fig. 8 is the figure that is similar to Fig. 6, shows the passage that is used for chemical injection and subsurface safety control device;
Fig. 9 is the enlarged drawing on the top of Fig. 8; And
Figure 10 is the sectional view of the part of pipe hanger suspension assembly according to another embodiment of the present invention.
The specific embodiment
Specifically describe embodiments of the invention in detail with reference to accompanying drawing.Finishing of the well that the present invention relates to get out, and the bore hole of this well is lined with sleeve pipe.Although following manual of writing and accompanying drawing show the present invention who is implemented in the submarine well, present invention may also be implemented in the ground well.Referring to Fig. 1, typical drilled well bore B is shown extends downwardly into regional Z from seabed F, this zone is communicated with the reservoir of hydrocarbon fluid usually.The tubular column that well bore B has a series of sleeve pipes that extend along well bore B from seabed F downwards is shown.These a series of tubing strings begin to comprise conductor housing 12, wellhead housings 14, have first or the outer cover tubing string 16 of hanger 16a and have inside or the production casing post 18 of hanger 18a from the most external post.Well shown in Fig. 1 is the representative of typical well, is for purpose of the present invention is described, but the present invention is not limited to the well of this concrete structure.Accompanying drawing is not drawn in proportion, because well bores profoundly.
Also referring to Fig. 1, the top of conductor housing 12 is preferably above the F of seabed.Wellhead housings 14 is preferably High Pressure Shell, extends above conductor housing 12.Preferably, the top of wellhead housings 14 is above the F of seabed about ten feet.Wellhead housings 14 generally includes and is used for gathering the exterior contour (not shown) that tree is connected with the connector 20a of preventer (" BOP ") group 20 with the oil field, as described below.Usually, casing hanger 16a and 18a settle and are fixed in the wellhead housings 14.
Although not shown, wellhead housings 14 generally includes several in-profiles, size and the details that is used for settling, locking and seal stacked casing hanger 16a, 18a in wellhead housings 14.Each wellhead manufacturer has several wellhead housings, and has the respective sleeve hanger that is used for each wellhead housings.So, be installed in casing hanger 16a, 18a in the wellhead housings 14 usually by the same companies manufacturing, because the well head of each manufacturer and casing hanger and other manufacturer is different.
After as illustrated in fig. 1 sleeve pipe being set, prior art pipe hanger assembly is advanced in conventional well usually.Although not shown, the typical prior art pipe hanger (that is, pipe hanger is placed in the well in the wellhead housings) that is used for conventional well comprises housing, and this housing has the flow string that extends downwardly into Production Regional Z from housing basically.Being installed in typical prior art pipe hanger in the wellhead housings of Fig. 1 is placed on one or more shoulder 18b on the production casing hanger 18a.The weight of the tubing string that hangs is supported by production casing hanger 18a.Although not shown, the production casing hanger 18a of prior art comprises in-profile, size and the details that is used for settling, locking and seal typical prior art pipe hanger in production casing hanger 18a.With above similar, each casing hanger manufacturer is about having its oneself peculiar structure with the coupling of pipe hanger with being connected.So in typical conventional well, by the same manufacturer manufacturing of casing hanger, they also are the same manufacturer of wellhead housings to pipe hanger usually usually.
Also, BOP group 20 is shown has connector 20a, upright opening 20b, a plurality of flashboard (ram) 20r, choke flow line 20c and kill line 20k referring to Fig. 1.The BOP group 20 that is applicable to wellhead housings 14 that several types and structure are arranged.The diameter that the hole 20b of BOP group 20 is shown is about the diameter of wellhead housings 14.But the BOP bore dia only needs to have and must pass BOP group 20 to carry out desired installation or to check any instrument of operation or the diameter of well parts is identical or both can greatly slightly.Term " inspection " is used for representing in order to recover or increase output and one or more of the various corrective operations carried out on producing well.
Although dispensable, it is desirable to determine the distance between the upper surface 14a of the top 18c of production casing hanger 18a and wellhead housings 14.The degree of depth of top 18c is determined by the known depth (size) of BOP group 20 usually.Typical wellhead housings 14 24 " to 36 " of between housing upper surface 14a and production casing hanger 18a, having an appointment.
Preferably, the length D between the inner surface 20f of the top of one of measurement and known a plurality of BOP flashboard 20r (for example flashboard 20r ' of Fig. 1) and BOP wellhead connector 20a.Owing to will explain that hereinafter this length D is called " separating " size.The inner surface 20f of wellhead connector 20a is adjacent or adjoin with the upper surface 14a of wellhead housings 14 usually when BOP group 20 is installed on the wellhead housings 14.
The general pipe hanger suspension assembly 10 of preferred embodiment has been shown among Fig. 2 and the 2A according to the present invention.Pipe hanger suspension assembly 10 comprises the tubing string of the production pipe 22 that is connected to pipe hanger housing 24.Produce pipe 22 qualifications and pass production pipe 22 axially extended production pore 22a.Pipe hanger housing 24 comprises and produces the production hole 24a that pore 22a fluid is communicated with.Production hole 24a perpendicular extends through pipe hanger housing 24.As previously mentioned, flow string 22 extends downwardly into Production Regional Z usually.Flow string 22 can comprise the subsurface safety 26 at the degree of depth place that requires in the well bore B.
Referring to Fig. 2 A, general pipe hanger suspension assembly 10 is preferably included in the pipe hanger lower component 32 of pipe hanger housing 24 lower ends.Lower component 32 can be connected to or be integrally formed at pipe hanger housing 24.Lower component 32 preferably comprises sealing and lock-in component 34.Lower component 32 preferably is a tube-like piece, and it has a perforation.Tube-like piece 32 can be pipe or the axle with perforation.Pipe hanger lower component 32 is preferably extended around flow string 22, produces annular space 32a and is limited between the two.Although the length of flow string 22 preferably makes its lower end approximately extend to Production Regional Z, the length of pipe hanger lower component 32 is preferably basically less than the length of tubing string 22.Preferably, the length of lower component 32 is less than 50% of the length of tubing string 22, more preferably less than 25% of the length of tubing string 22, and best less than 15% of the length of tubing string 22.
Because the length of tubing string 22 depends on the degree of depth of Production Regional Z, the degree of depth of lower component 32 with respect to the length of tubing string 22 different between well and the well.Preferably, lower component 32 has 1 ' to the length of 1,500 ' scope, more preferably be 1 ' to 300 ' scope, and be 5 best ' to 100 ' scope.
Preferably, sealing and lock-in component 34 are by 32 carryings of pipe hanger lower member.Preferably, sealing/lock-in component 34 is positioned near the lower end of pipe hanger lower member 32.The enlarged drawing of sealing/lock-in component 34 has been shown among Fig. 3.Preferably, sealing/lock-in component 34 comprises the tubular portion 36 that external diameter enlarges, and this part is slightly smaller than the internal diameter of production casing 18.In preferred embodiment, locking device or lock uint 40 that sealing/lock-in component 34 comprises sealing device 38 and prevents to move.It maybe can be assembly separately that sealing device 38 and lock uint 40 can be included in the integrated component.In the well with subsurface safety 26, sealing device 38 is arranged on the top of subsurface safety 26 in the casing string 18.Lock uint 40 is also above subsurface safety.
In preferred embodiment, lock uint 40 comprises it can being metal or nonmetallic element or slips (slip), is suitable for cooperating with the inside of production casing 18.During cooperation, lock uint 40 cooperates also " fixing " with sleeve pipe 18 inside or prevents that pipe hanger suspension assembly 10 from moving with respect to the vertical of production casing 18.
Shown in Fig. 2 A, preferably one or more hydraulic control lines 44 extend through pipe hanger housing 24 so that the hydraulic control to the device of pipe hanger housing 24 belows to be provided.For example, can require hydraulic control line to activate and stop sealing device 38 and lock uint 40.Equally, can require hydraulic control line 44a to extend to subsurface safety 26.Preferably, extend among the production annular space 32a of these hydraulic control lines 44 between lower member 32 and flow string 22, shown in Fig. 2 A.Subsurface safety hydraulic control line 44a is preferably among the annular space 22b between production casing post 18 and flow string 22, and this annular space 22b is below the lower end of sealing and lock-in component 34, shown in Fig. 2 A.
Referring to Fig. 2 and 2A, pipe hanger suspension assembly 10 preferably is reduced to pipe hanger running tool 30 and adds in cover well bore B and the wellhead housings 14 again.Pipe hanger running tool 30 is suitable for locking onto in the upper end of pipe hanger housing 24.Pipe hanger running tool 30 preferably comprises the production hole 30a that extends through running tool 30 and be communicated with pipe hanger production hole 24a.Pipe hanger running tool 30 also preferably comprises the hydraulic line 30c that the annular space that is communicated with pipe hanger annulus access 24b enters hole 30b and is communicated with the hydraulic line 44 of pipe hanger housing 24.Pipe hanger running tool 30 preferably comprises and is used for the pipeline (not shown) that underground hydraulic pressure and chemical agent inject, to be communicated with similar pipeline in the pipe hanger housing 24.
Pipe hanger running tool 30 is preferably included in the upper mandrel 46 that top has interval axle adjusting nut 48 or similar means.Preferably, owing to hereinafter explain nut 48 or axle 46 and nut 48 adjustable in length.As above explain referring to Fig. 1, size of space D is that record and a known size between the inner surface 20f of wellhead connector 20a of the top of BOP flashboard 20r ' and BOP group 20.This spacing distance D is constants to BOP group 20 and preferably measured before being reduced to the BOP group in the water.As shown in Figure 1, when BOP group 20 was connected to wellhead housings 14, spacing distance D was also corresponding to the distance between the upper surface 14a of the top of BOP flashboard 20r ' and wellhead housings 14.
Referring to Fig. 2, the adjusting nut 48 of pipe hanger running tool 30 and upper mandrel 46 are preferably before " sending into " of beginning pipe hanger suspension assembly 10 or fitting operation " adjusting ".When adjusting nut 48 as shown in Figure 2 when partially enclosed BOP group flashboard 20r ' contact, regulate axle 46 and adjusting nut 48 and make pipe hanger housing 24 be received in to require in the wellhead housings 14 highly to locate.The external diameter of the adjusting nut 48 in the preferred embodiment is bigger than the external diameter of upper mandrel 46.Along with pipe hanger suspension assembly 10 near its desired degree of depth, " reduce as far as possible " on flashboard 20r ' than major diameter adjusting nut 48, flashboard 20r ' is closed into one less than the diameter of adjusting nut 48 but greater than the diameter of axle diameter.
Referring to Fig. 2 and 2A, the preferable fitting operation of pipe hanger suspension assembly 10 comprises with pipe hanger running tool 30 and tubing string 50 (preferably being drilling rod) is installed, passes standpipe (not shown) and BOP group 20 and reduce flow string 22, sealing and lock-in component 34, pipe hanger lower tubular member 32 and pipe hanger housing 24.Pass BOP flashboard 20r ' afterwards in the bottom of pipe hanger housing 24 and pipe hanger running tool 30, flashboard 20r ' part is closed.Close or part when being closed on the upper mandrel 46 at flashboard 20r ', reduce operation and continue to contact with flashboard 20r ' and make pipe hanger running tool 30 stop at the preset distance place up to adjusting nut 48.This preset distance suitably is arranged on pipe hanger housing 24 on the predetermined altitude with respect to wellhead housings 14.In preferred embodiment of the present invention, this preset distance suitably is arranged on pipe hanger housing 24 in the wellhead housings 14.For example, this preset distance can be arranged on the upper end of pipe hanger housing 24 above or below the upper surface of wellhead housings 14 in one or two inch.Because adjusting nut 48 contacts with flashboard 20r ', pipe hanger lower tubular member 32 and sealing and lock-in component 34 vertically remain on the correct position in the production casing post 18.
Next, if desired, well completion fluid circulates in well.Preferably, BOP flashboard 20r ' is around upper mandrel 46 sealings.Well completion fluid is extracted into the kill line 20k of BOP group 20 downwards and enters that pipe hanger running tool annular space enters hole 30b, pipe hanger annulus access 24b, lower member is produced annular space 32a and produced the empty 22b of pipe ring from rig, and is upward through the hole 50a that produces pore 22a, pipe hanger production hole 24a, running tool production hole 30a and tubing string 50 is installed and turns back to the surface.Perhaps, well completion fluid can be extracted into installation tubing string hole 50a, running tool production hole 30a, pipe hanger and production oil column hole 24a downwards and 22a pumps, around bottom production packer 52, and also arrive surperficial to pipe hanger annulus access 24b, running tool annulus bore 30b to passing BOP choke flow line 20c or kill line 20k upward to annulus bore 22b, 32a.Well completion fluid just circulates in well before lower packer 52 is arranged in the lower end formation production casing 18 of well and produces the sealing of managing between 22.Should be appreciated that and before or after sealing device 38 is set, to carry out the above-mentioned circulation of well completion fluid.
Then, when sealing and lock-in component 34 actuatings, be preferably by the hydraulic control line hydraulic actuation to force lock uint 40 (see figure 3)s and production casing 18 tight lock fit.The lock uint 40 that cooperates prevents or prevents substantially moving both vertically relatively between lower tubular member 32 and the production casing 18.When sealing device 38 activates, fluid or gas-tight seal that sealing device 38 forms between lower tubular member 32 and the production casing 18.Sealing and lock-in component 34 can comprise one group of slips, and these slips have the hardware of clamping production casing 18.Elastic body or other seal are preferably compressed to form fluid-tight by this group slips.Preferably, sealing and lock-in component 34 are improved packer assemblies of being used in the type in the well usually with isolate production zones etc.At United States Patent (USP) 6,769,491,5,988,276,5,271,468 and 4,296, this representative packer assembly technology has roughly been described in 806, and can be from such as Halliburton company, BakerHughes Inc. and Weatherford/Lamb, Inc. buys.The applicant is United States Patent (USP) 6,769,491,5,988,276,5,271,468 and 4,296,806 all with referring to mode include this paper in.
In this preferred embodiment of the present invention, sealing that cooperates with production casing 18 and lock-in component 34 provide in well the sealing of general pipe hanger suspension assembly 10 and load supporting.Sealing and lock-in component 34 provide vertical load support to support general pipe hanger assembly 10 and to resist the upward force that may be applied on the assembly 10.Finish and install sealing, locking and the suspension of pipe hanger 10 and needn't know any critical and characteristic dimension among any wellhead housings 14 and/or casing hanger 16a, the 18a.In addition, in this preferred embodiment, pipe hanger housing 24 does not require and does not preferably lock or sealing with wellhead housings 14 or casing hanger 16a, 18a.
After activating and sealing and lock-in component 34 are set, can above or below sealing and lock-in component 34, carry out pressure test to the sealing structure.Can be by closing the annulus isolation valve 28 in the pipe hanger housing 24, and make flashboard 20r ' around upper mandrel 46 sealings, pass through kill line 20k withdrawn fluid from the surface, and make it be passed down through the flashboard 20r that opens ", in the annular region in the 20b of BOP hole between outside, the annular space zone between wellhead housings 14 and pipe hanger housing 24 and the production casing 18 and the lower member 32 of pipe hanger running tool 30, to carry out pressure test from the top to the sealing structure.
Preferably, after successfully testing sealing and lock-in component 34, lower packer 52 is arranged near the sealing in bottom of flow string 22 and produces pipe ring sky 22b.Can be by opening isolating valve 28 and closing BOP flashboard 20r ' and bottom flashboard 20r around pipe hanger running tool 30 " and from below test lower packer 52.In order to carry out pressure test, form pressure below 52 down to tubing string hole 50a, pipe hanger running tool production hole 30a, pipe hanger production hole 24a being installed and producing pore 22a and arrive packer by the suction fluid.If at the trial, packer 52 leak fluid then are upward through pipeline ring hollow 22b, annular space valve 28 and annulus access 24b, flashboard 20r ' and 20r " between, and come absorption pressure and fluid upward to kill line 20k.
With reference to Fig. 4, preferably closure member or blanking plug 54 (for example passing through hawser) are along tubing string hole 50a and pipe hanger production hole 30a decline being installed and being arranged among the hole 22a that produces pipe 22.Closure member 54 is preferably recoverable blanking plug, and the recoverable blanking plug of more preferably available hawser.In preferred embodiment, closure member 54 is arranged in the production pipe 22 at the degree of depth or the following degree of depth place of sealing and lock-in component 34.Perhaps, closure member 54 can be arranged at sealing and lock-in component 34 or above place to produce and manage in 22 or be arranged among the pipe hanger housing production hole 24a.
Be provided with and test sealing and lock-in component 34, lower packer 52 and closure member 54 after, and subsurface safety 26 and annulus isolation valve 28 be when closing, pipe hanger running tool 30 is from 24 disengagements of pipe hanger housing and get back to the surface.Remove BOP group 20 from wellhead housings 14 then.
Then, collection tree assembly 60 is by tubing string 50 (preferably drill string) and gather the upper surface reduction of tree running tool 56 from water, as shown in Figure 5.Collection tree assembly 60 is shown to be had production hole 62, produce main valve 64, produces flutter valve 66 and production pumping valve 68.Gather tree assembly 60 and also comprise annulus bore 70 and annulus master valve 72.Gathering tree assembly 60 has and is suitable for and wellhead housings 14 sealings and the collection that is connected and sets wellhead connector 60a.
Fig. 5 shows to have to gather and sets the collection tree assembly 60 that pipe hanger inserts joint (stab sub) assembly 74, and this insertion adapter assembly provides various the interconnecting of gathering between tree assembly 60 and the general pipe hanger suspension assembly 10.Inserting adapter assembly 74 preferably is installed in before being reduced to wellhead housings 14 and gathers the lower end of setting assembly 60 will gathering tree assembly 60.Insert adapter assembly 74 and comprise and gather the production hole 74a that tree production hole 62 is sealed and matched, and when gathering tree assembly 60 and be installed on the wellhead housings 14, be sealed and matched with pipe hanger housing production hole 24a formation.Similarly, insert adapter assembly 74 and also comprise the annulus bore 74b that is sealed and matched with collection tree annulus bore 70.When gathering 60 installations of tree assembly, annulus bore 74b formation is sealed and matched with pipe hanger annulus bore 24b's.In inserting adapter assembly 74 one or more hydraulic control line 74c are arranged preferably, what these hydraulic control lines 74c was provided to hydraulic line 24c, 44a and 44b is connected (Fig. 9) with control underground equipment and device.In addition, other port such as chemical agent injects pipeline or pipeline can be arranged on and insert adapter assembly 74.The term " pipeline " that use is injected about hydraulic pressure and chemical agent is intended to comprise pipe or the hole or the port of solid member, and described solid member is pipe hanger housing 24 or insert adapter assembly 74 for example.
Fig. 6 shows the preferred embodiment of the insertion adapter assembly 74 that is connected to general pipe hanger housing 24.Be illustrated in a pair of annulus isolation valve 28 is arranged in the pipe hanger housing 24.The right side of Fig. 6 is illustrated in the right valve 28 of detent position with sealing annulus access 24b, and the left side is illustrated in open position to open the left valve 28 of annulus access 24.Preferably identical position and operation are together adopted with right isolating valve 28 in a left side.Shown in Fig. 6 and 7, insert adapter assembly 74 and preferably comprise a pair of annulus bore 74b so that enough cross section annularly flow areas to be provided, this combined area equals the section area of 1.5 " to 2 " diametric hole usually.The lower end of each looping pit 74b is by peripheral groove or raceway groove 74b ' fluid communication with each other.Similarly, the upper end of each looping pit 74b is by peripheral groove or raceway groove 74b " fluid communication with each other.Perhaps or additionally, gather tree assembly 60 and can comprise that also peripheral groove is communicated with (Fig. 5) to be provided to the fluid of gathering tree looping pit 70 and annular main valve 72.When opening, annulus isolation valve 28 represents with arrow among Fig. 6 to the annular space stream P that gathers tree assembly 60 from sealing and lock-in component 34 belows.
Fig. 8 and 9 shows the passage that is used for chemical agent injection and hydraulic pressure or subsurface safety (SSSV) control device.Fig. 8 and 9 sectional view are with respect to the existing angle rotation of the sectional view of Fig. 6.As shown in Figure 9, insert joint 74 and comprise the hydraulic control device 74c that is used for subsurface safety 26 and chemical agent injection 74d.Preferably above-mentioned similar raceway groove is set for each.Seal is preferably disposed between each raceway groove to keep the isolation between each passage.
In preferred embodiment, the width of peripheral groove or raceway groove (measuring along the longitudinal axis that inserts joint 74) is bigger than the respective diameters of hole 74b, 74c and 74d, so that can be communicated with between the respective channel on the perpendicular separation excursion between pipe hanger housing 24 and the collection tree assembly 60.For example, pipe hanger housing 24 is also being provided with by above-mentioned running tool upper mandrel 46 and adjusting nut 48 of being scheduled to respect to the vertical height of wellhead housings upper surface 14a.Gathering tree assembly 60 is installed on the wellhead housings 14.Inserting adapter assembly 74 provides fluid and control between pipe hanger housing 24 and the collection tree assembly 60 to connect.Be attached to and gather tree assembly 60 owing to preferably before reducing assembly, will insert joint 74, so be very important when gathering when setting assembly 60 and being fixed to wellhead housings 14 that all the fluid/control connections between the pipe hanger housing 24 and insertion joint 74 can mate automatically.The width of the expansion of above-mentioned peripheral groove or raceway groove allows to realize desired coupling on a distance range of gathering between tree assembly 60 and the pipe hanger housing 24.Preferably, raceway groove makes insertion adapter assembly 74 suitably mate and to be communicated with on the vertical distance range of about 1 " to 3 ".
As top with reference to raceway groove as described in the preferred embodiment make gather tree assembly 60, inserting adapter assembly 74 and pipe hanger housing 24, can be independent of the angle of separate parts directed and communicate with each other and mate.This " non-directional " feature reduction of this device the sending into and installing of subsea components.The present invention also can be used for directed subsea components.
After tree assembly 60 was gathered in fixing and test, closure member 54 (see figure 4)s were passed and are produced pipe 22, pipe hanger 24, insert adapter assembly 74, gather tree assembly 60, gather tree running tool 56 and the hole of tubing string 50 is installed and are retracted into the surface.
Shown in above Figure 10 shows and the small change of the described embodiment of the invention.In Figure 10, retention device 80 is connected to the lower end of pipe hanger housing 24.Retention device 80 is preferably for having the ring of last loop section 82 and following loop section 84.Each loop section 82,84 comprises end of thread 82a, 84a respectively, is suitable for being fitted to each other.Preferably, following loop section 84 has lower bevel end 84b, and this lower bevel end is corresponding with shoulder 18b on the production casing hanger 18a.Preferably, the length of retention device 80 can be regulated by the threaded engagement of loop section 82 and 84 before pipe hanger suspension assembly 10 is installed.Preferably, the length of retention device 80 make lower beveled end 84b contact with pipe hanger shoulder 18b and with the weight transmitting of pipe hanger suspension assembly 10 to production casing hanger 18a.Therefore, if production casing hanger 18a is known with respect to the size and the position of wellhead housings 14, can adopt loop resistance blocking means 80 that downward stopping is provided when reducing and pipe hanger suspension assembly 10 is installed.In addition, loop resistance blocking means 80 can be used for replacing the adjusting nut 48 of Fig. 2.Loop resistance blocking means 80 does not provide seal, and it does not provide to the resistance-sealing of upward force with to the resistance of upward force and is still provided by sealing and lock-in component 34.
According to above-mentioned explanation of the present invention, can realize the submarine well parts of a cover " general ".For example, again referring to Fig. 1, the common size of wellhead housings 14 has the internal diameter (ID) of 18.625 " or 18.75 ", and this depends on manufacturer.Be installed in following 24 " to 36 " of upper surface 14a that casing hanger 16a, 18a in these wellhead housings 14 is generally wellhead housings 14.Therefore, (Fig. 2 2a) can occupy the cylindrical space of about diameter 18.5 " height 24 " on the top of wellhead housings 14 to the pipe hanger housing 24 of general pipe hanger suspension assembly 10.Because preferable pipe hanger housing 24 do not comprise that being used for locking onto wellhead housings 14 top releasable locks decides mechanism's (is typical at conventional pipe hanger), 18.5 " diameter can be used fully by pipe hanger housing 24 basically.Wellhead housings 14 should be than major diameter be favourable because " free space " that be used for passing required various holes of pipe hanger housing and passage obvious big than conventional pipe hanger.
Preferably, the length (seeing Fig. 5,6) of inserting adapter assembly 74 is identical, and with wellhead housings 14 and casing hanger 16a that collection tree assembly 60 is installed, the type of 18a is irrelevant.At this moment owing to using spacing distance D all similarly pipe hanger 24 to be finished with respect to the top setting of wellhead housings 14 basically with the type nothing else of wellhead housings." general " insertion adapter assembly 74 that this provides the simplification of the design from the well head to the well head and has allowed to be used for preferred tree assembly 60.Certainly, the production pipe to different sizes need independently insert adapter assembly.
Therefore, be to be understood that, general pipe hanger suspension assembly 10, insertion joint 74 and collection tree assembly 60 can be installed on the various wellhead housings 14, and be the article of " general " and " can be purchased off the shelf " to a great extent, disappear except when sizable engineering and the manufacturing cost that produces when the collection of the A of manufacturer tree assembly being installed on the wellhead housings of the B of manufacturer.The present invention does not also re-use the short tube that the well head that is installed on the B of manufacturer is used to carry the pipe hanger of the A of manufacturer (well head connector and cross over wellhead housings).
In preferred embodiment of the present invention, general pipe hanger suspension assembly 10, insertion adapter assembly 74 and collection tree assembly 60 do not require the angle orientation.Erection procedure has been simplified on this characteristic remarkable ground.But the present invention is not limited to the non-directional setting, but also can be used for the relative to each other directed parts of requirement.It is known in the art being used for gathering the technology that the tree assembly is directed to pipe hanger.United States Patent (USP) 5,544 has disclosed one type suitable directional technology in 707, this technology with referring to mode include this paper in.Another directional technology be when parts pass BOP and organize 20 with pin change BOP group 20 with to the parts orientation.The orientation of parts has increased the cost and the complexity of seabed installation process.
The present invention includes the pipe hanger suspension assembly 10 and the mounting method thereof that are used for oil well and gas well.Pipe hanger suspension assembly 10 comprises the pipe hanger housing 24 that is arranged in the wellhead housings 14.Pipe hanger assembly 10 comprises can provide the sealing of producing pipe 22 and the sealing and the locking mechanism 34 of load bearing in production casing post 18.The insertion adapter assembly 74 that is connected to the upper end of pipe hanger suspension assembly 10 and gathers the lower end of tree assembly 60 provides underground hydraulic pressure and electric functions and to the annular space path of producing pipe 22.
Use is used for the interval of pipe hanger assembly 10 and the BOP group 20 of placement no longer requires to be used for the accurate dimension of wellhead housings 14 at interval and need that no longer tree assembly 60 interfaces are gathered in the seabed to be connected to any inner laminated size of inserting adapter assembly 74.Preferably, but the interval of pipe hanger assembly 10 finish by the control interval nut 48 at the place, upper mandrel 46 tops of the running tool 30 in the BOP group 20.Perhaps, the space out predetermined elevation of pipe hanger assembly 10 can be finished with the loop resistance blocking means 80 (preferably adjustable) that is placed in the production casing hanger 18.Use is fixed on the pipeline packer technology of predetermined altitude by BOP group 20 rather than wellhead housings 14 with the lower member height, and making the seabed gather tree can be connected in any industrial well head system by interface.It is directed that this device that uses in system need not use BOP group 20 or well head yet.
Said apparatus and method are favourable, because they are suitable for irrespectively being used for wellhead housings 14 with the peculiar details that belongs to wellhead housings.The pipe hanger suspension assembly 10 of preferred embodiment of the present invention no longer needs to use and is used for pipe hanger housing 24 is locked and seal wellhead housings on the throne or casing hanger landing shoulder.The pipe hanger suspension assembly 10 of preferred embodiment of the present invention also no longer needs pipe hanger housing 24 is sealed to wellhead housings 14.Preferred embodiment will be by sealing with lock-in component 34 sealings, fixing and be locked in the production casing 18 that is hung by the casing hanger 18a in wellhead housings or the system and eliminated these needs.
The present invention makes and finishes being simplified and the cost reduction of submarine well.Pipe hanger housing 24 preferably is not locked to wellhead housings 14, not with its sealing or by its supporting.Therefore, wellhead housings 14 no longer needs to be relevant to specially details, profile of pipe hanger housing 24 etc.In addition, not needing in-profile to wait with sealing and lock-in component 34 associations in production casing post 18 joins.This provides pipe hanger housing 24 has been installed in desired height to guarantee when inserting adapter assembly 74 flexibility by the suitable space of its bridge joint when gathering tree assembly 60 and reduce.Even the final of sealing in the casing string 18 and lock-in component 34 highly also can change on long distance by the length that changes lower member 32.According to various factors about well, if think needs, the present invention also is embodied as a plurality of sealings and lock-in component 34.
The invention provides the section area that can be used for the quite a large amount of increase in the pipe hanger housing 24, this is very favourable.The diameter of pipe hanger housing 24 can be near the internal diameter of wellhead housings 14.The area that increases can make the production hole of the increase that needs in the pipe hanger housing or want or a plurality of productions hole, annular space and various other port and control device etc. that adequate space is arranged.
Being described as follows of some advantages that can obtain from the preferred embodiment of pipe hanger suspension assembly of the present invention:
For customer/user, it is invisible that well head becomes for completion.This provides the saving of two aspects for the user: engineering and hardware interface.Reducing engineering aspect the pipe hanger interface of determining such as stack-up tolerances and size and compatibility issue.At present, this comprises the problem of seabed and surface completions.
Engineering:
1. the engineering time that spends on the interface is very significant.The engineering quantity in about one week of people of user effort is to finish interface.This roughly needs $200/ hour cost of two engineer's Yis, the interface Zong Gong $16 of each manufacturer, 000.The cost Yue Wei $32 of two wells, 000 and ten well Shi $320,000.
2. manufacturer's supply solves the every width of cloth figure of the special purpose chart figure $10 of interface problem, 000.Usually minimum two secondary figure need $20 altogether, 000.Even well is identical and figure is also charging by well of duplicating.If the user has two wells, charge Shi $40,000, if or he ten wells are arranged, charge Shi $200,000.Wellhead manufacturer is collected these expenses can obtain the specific information that it needs, and these information are as encouraging the user to buy the pipe hanger of wellhead manufacturer aspect money and gathering tree rather than seek most economical/business-like solution to finish his submarine well.
3. sum is at a Jing $36, and 000 to ten Jing $520 is between 000.
Make and hardware interface:
1. in order to use conventional pipeline hanging method to finish well in well head, wherein the manufacturer of well head is different with the manufacturer of gathering tree, and the conventional pipeline suspension and the well head of tree manufacturer are incompatible.Therefore, it is useless causing user's completion.This means user's De $1,300,000 to $2, and 000,000 completion is useless, and what it must be with time, progress and hardware is that cost is bought another and gathered tree.
2., can use jumper spool if the situation of well allows technological deficiency.But in the engineering above-mentioned same problem can take place.Jumper spool is installed on the wellhead housings and is designed to adapt to the pipe hanger of tree manufacturer.Except the engineering cost that increases, the hardware cost that is used for cross-over connection is about, and 000, approximately increase, 500,000 to, 000,000 installation expansion cost.This expansion cost depends on the degree of depth and the geographical position of water.
3. horizontal tree is helpful in this respect, and in horizontal tree, the pipe hanger housing is settled and is sealed in and gathers in the tree (short tube), rather than in the wellhead housings.But horizontal tree is attended by the problem of price and engineering interface aspect in addition.Usually each well of horizontal tree cost exceeds approximately, and 000,000 and also have an appointment 200,000 the auxiliary cost that takes.
4. in the preferred embodiment of pipe hanger suspension assembly of the present invention, sealed and sealing device is in collar aperture.This provides the advantage of following aspect: cost and flexibility.Cost reduces the user, because can use single hole or porous to produce guard system.This makes big insertion joint enoughly gathering tree with band porous (production, annular space and hydraulic port) by being used for gathering the insertion adaptor mandrel of tree interface, therefore gather saving aspect tree and the completion about, 000 to, 000,000.
The present invention comprises general pipe hanger suspension assembly 10, is not limited to preferred embodiment described here.General pipe hanger suspension assembly 10 is not limited to be contained in the pipe hanger housing in the wellhead housings.Certainly, general pipe hanger suspension assembly 10 also can be used for pipe hanger and is contained in the pipeline short tube or the well in the horizontal tree that is installed on the wellhead housings.Should be appreciated that sealing device 38 reaches and optional lock uint 40 should still be arranged in the casing string 18.
Therefore set forth preferred embodiment according to pipe hanger suspension assembly of the present invention, completion system and mounting method thereof.But the present invention should exceedingly not be limited to and only be used for the illustrative purpose above.The of the present invention various embodiment that do not deviate from essential scope of the present invention are conspicuous for those skilled in the art.
Claims (30)
1. pipe hanger assembly (10) that is used for well, the casing string (18) that has wellhead housings (14) and extend along well bore (B) downwards, described pipe hanger assembly comprises:
Pipe hanger housing (24) has the production hole of passing wherein (24a);
Flow string (22) is connected to described pipe hanger housing, and described flow string has the production hole (22a) that is communicated with described pipe hanger housing production hole (24a) fluid;
Lower component in described pipe hanger housing lower end, the locking device (40) that described lower component comprises lower member (32), sealing device (38) and prevents to move, described sealing device (38) is provided with and is designed to and form fluid-tight between described lower component and described casing string (18), and describedly prevents that the locking device (40) that moves is provided with and is designed to described lower component is locked on the described casing string (18).
2. pipe hanger assembly as claimed in claim 1 is characterized in that, described sealing device (38) is provided with and is designed to form between described lower member (32) and the described casing string (18) described fluid-tight.
3. pipe hanger assembly as claimed in claim 1 is characterized in that,
Describedly prevent that the locking device (38) that moves is provided with and is designed to described lower member is locked onto described casing string.
4. pipe hanger assembly as claimed in claim 1 is characterized in that,
Described pipe hanger housing (24) is provided with and is designed to be independent of in the described wellhead housings (14).
5. pipe hanger assembly as claimed in claim 1 is characterized in that,
Described pipe hanger housing (24) is suitable for only by described lower component vertical support.
6. pipe hanger assembly as claimed in claim 5 is characterized in that,
By the described vertical support that the pipe hanger housing is provided that cooperates that prevents the locking device (40) that moves and described casing string (18).
7. pipe hanger assembly as claimed in claim 1 is characterized in that,
Lower component has the hole passed wherein and the part of described flow string (22) extends through described lower component hole.
8. pipe hanger assembly as claimed in claim 7 is characterized in that,
Described flow string (22) extends through described lower component hole, limits lower component pipeline ring hollow (32a).
9. pipe hanger assembly as claimed in claim 8 is characterized in that,
Described pipe hanger housing comprises the annulus access that is communicated with described lower component pipeline ring hollow (32a) fluid.
10. pipe hanger assembly as claimed in claim 1 is characterized in that,
Described flow string (22) has tubing string length, and described lower component has lower component length, and described lower component length is less than 50% of described tubing string length.
11. a completion system comprises:
Wellhead housings (14);
Casing string (18) is contained in the described wellhead housings and also extends along well bore (B) downwards;
Pipe hanger assembly (10) comprises pipe hanger housing (24), by the lower component (32) of described pipe hanger housing carrying be connected to the tubing string that dangles (22) of described pipe hanger housing, and described lower component (32) comprising:
Sealing device (38) is attached to described lower component (32),
Wherein, the part of described tubing string (22) extends through described lower component (32) and described sealing device (38) and be provided with and be designed to form fluid and air seal between described casing string (18) and described lower component (32).
12. completion system as claimed in claim 11 is characterized in that,
Actuatable described sealing device (38) from the non-tight state to sealing state with from described sealing state to described non-tight state.
13. completion system as claimed in claim 11 is characterized in that,
Also comprise preventing the locking device (40) that moves, this device is suitable for described lower component (32) is locked onto described casing string (18).
14. completion system as claimed in claim 13 is characterized in that,
Prevent that the locking device (40) that moves has lock-out state and unlock state, and
The actuatable described locking device that prevents to move is from described non-locking to lock-out state with from the described unlock state that locks state to.
15. completion system as claimed in claim 14 is characterized in that,
Described pipe hanger housing (24) is by described lower component (32) vertical support individually.
16. completion system as claimed in claim 15 is characterized in that,
The supporting of described pipe hanger housing (24) is provided with cooperating of described casing string (18) by the described locking device (40) that moves that prevents.
17. completion system as claimed in claim 11 is characterized in that, also comprises:
Casing hanger (18a) is attached on the described casing string (18); And
Retention device (80) is attached to described pipe hanger housing (24), and described retention device and described casing hanger (18a) association are equipped with moving down of the described pipe hanger housing of restriction.
18. completion system as claimed in claim 17 is characterized in that,
Described retention device adjustable in length.
19. completion system as claimed in claim 11 is characterized in that,
Described pipe hanger housing (24) has production hole (24a) and annulus bore (24b);
Described system also comprises:
Gather tree assembly (60), have production hole (62) and annulus bore (70), described collection tree assembly is installed to described wellhead housings; And
Insert adapter assembly (74), have first end that is connected to described collection tree assembly (60) and second end that is connected to described pipe hanger housing (24), described insertion adapter assembly (74) has production hole (74a), described production hole (74a) provides the described production hole (62 of described collection tree assembly (60) and described pipe hanger housing (24), fluid 24a) is communicated with, and described insertion adapter assembly (74) has annulus bore (74b), described annulus bore (74b) provide described collection tree assembly (60) and described pipe hanger housing (4) described annulus bore (70,24b) the fluid connection between.
20. completion system as claimed in claim 19 is characterized in that,
Described pipe hanger housing (24) is provided with and designs the vertical span that has with respect to described wellhead housings (14).
21. completion system as claimed in claim 19 is characterized in that,
The described part that extends through the described tubing string (22) of described lower component (32) extends through the hole in the described lower member (32), and limiting lower component pipeline ring hollow (32a), described lower component pipeline ring hollow (32a) is communicated with described annulus bore (24b) fluid of described pipe hanger housing (14).
22. completion system as claimed in claim 19 is characterized in that,
Described tubing string (22) has tubing string length and described lower component (32) has lower component length, and described lower component length is less than 25% of described tubing string length.
23. a completion system comprises:
Wellhead housings (14);
Casing string (18) is contained in the described wellhead housings and also extends along well bore (B) downwards;
Pipe hanger assembly (10), comprise pipe hanger housing (24), by the lower component (32) of described pipe hanger housing carrying be connected to the tubing string that dangles (22) of described pipe hanger housing, described lower component (32) comprises the locking device (40) that moves of preventing that is attached to described lower member (32);
The part of wherein said tubing string (32) extends through described lower component (32), and describedly prevents that the locking device (44) that moves is provided with and is designed to described lower component (32) is locked onto described casing string (18).
24. completion system as claimed in claim 23 is characterized in that,
The described locking device (40) that moves that prevents comprises that actuating is provided with described lower component (32) locked onto described casing string (18) and to untie from described casing string (18).
25. completion system as claimed in claim 23 is characterized in that,
Described pipe hanger housing (14) is only by described lower component vertical support.
26. completion system as claimed in claim 25 is characterized in that,
Described pipe hanger housing (14) is by the described vertical support that cooperates that prevents the locking device (40) that moves and described casing string (18).
27. method that pipe hanger assembly (10) is installed in wellhead housings (14), wherein said wellhead housings (14) carrying sleeve hanger (18a), described casing hanger (18a) is connected in casing string (18), and this casing string (18) is lining in well bore (B), and
Wherein, described wellhead housings (14) has at top, the top of described casing hanger (18a) (18c) top annular shoulder (14a) at interval, said method comprising the steps of,
Preventer (BOP) group (20) is installed on described wellhead housings (14) top, and described BOP organizes (20) and comprises flashboard (20r '), and the through hole of described BOP is more than or equal to the through hole of described wellhead housings (14),
Pipe hanger running tool (30) is provided, the adjusting nut (48) that this running tool has top and bottom and is arranged on described top,
For described pipe hanger assembly (10) provides pipe hanger housing (24), the external diameter setting of this pipe hanger housing (24) and be designed to fit in the described through hole of described wellhead housings (14), and this pipe hanger housing (24) also has by described pipe hanger housing (24) carrying and is provided with and is designed to fit in lower tubular member (22) and sealing and lock-in component (34) in the described casing string (18)
The described bottom of described running tool (30) is latched to described pipe hanger assembly (10),
Regulate the described adjusting nut (48) on the described axle (46), make the distance between the bottom of the bottom of described adjusting nut (48) and described pipe hanger housing (24) approximate the distance of the top surface of described flashboard (20r ') greatly to several inches places, described top (18c) of leaving described casing hanger (18a)
Described hole by described BOP group (10) reduces described pipe hanger assembly (10) and described running tool (30),
Close described flashboard (20r ') towards described axle (46) part,
Continuing reduction described pipe hanger assembly (10) and described running tool (30) reduces as far as possible on the flashboard (20r ') that described part is closed up to described adjusting nut (48), make described pipe hanger housing (24) be arranged in the described wellhead housings (14), and make the described bottom of described pipe hanger housing (24) be arranged on several inches of the tops, described top (18c) of described casing hanger (18a).
28. method as claimed in claim 27 is characterized in that,
When dropping to described pipe hanger assembly (10) in the described wellhead housings (14), described lower tubular member (32) and described sealing and lock-in component (34) are carried to downwards in the described casing string (18), described method is further comprising the steps of,
By activating described lock-in component (34) against the described inside of described casing string (18) and described pipe hanger assembly (10) is vertically locked onto described casing string (18).
29. method as claimed in claim 28 is further comprising the steps of,
From the described lower end that described pipe hanger assembly (10) unclamps described running tool (30),
Open described flashboard (20r '),
And remove described running tool (30) from the described hole of described BOP group (20).
30. the method in the hole that pipe hanger assembly (10) is installed in wellhead housings (14), wherein said wellhead housings (14) carrying sleeve hanger (18a), this casing hanger (18a) is connected in casing string (18), this casing string (18) is lining in well bore (B), said method comprising the steps of:
For described pipe hanger assembly (10) provides pipe hanger housing (24), the external diameter setting of this pipe hanger housing (24) and be designed to fit in the described hole of described wellhead housings (14), this pipe hanger housing (24) also has by described pipe hanger housing (24) carrying and is provided with and is designed to fit in tube-like piece (32) and sealing and lock-in component (34) in the described casing string (18)
Described pipe hanger assembly (10) is reduced in the described wellhead housings (14), make described pipe hanger housing (24) be arranged in the described wellhead housings (14) and described tube-like piece (32) and described lock-in component (34) are arranged in the described casing string (18), be arranged on several inches places, top, top (18c) of described casing hanger (18a) up to the lower surface of described pipe hanger housing (24), and
Activate the inside of described lock-in component (34) against described casing string (18),
Thus, described pipe hanger assembly (10) is by the cooperate vertical support of described casing string (18a) with the position of described lock-in component (34) below described pipe hanger housing (24).
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68225005P | 2005-05-18 | 2005-05-18 | |
| US60/682,250 | 2005-05-18 | ||
| US11/216,227 US7419001B2 (en) | 2005-05-18 | 2005-08-31 | Universal tubing hanger suspension assembly and well completion system and method of using same |
| US11/216,227 | 2005-08-31 | ||
| PCT/US2006/018304 WO2006124534A2 (en) | 2005-05-18 | 2006-05-10 | Universal tubing hanger suspension assembly and well completion system and method of installing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101208495A true CN101208495A (en) | 2008-06-25 |
| CN101208495B CN101208495B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680017334.3A Expired - Fee Related CN101208495B (en) | 2005-05-18 | 2006-05-10 | Universal tubing hanger suspension assembly and well completion system and method of using same |
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| CN (1) | CN101208495B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103582740A (en) * | 2011-06-17 | 2014-02-12 | Bp北美公司 | Air-freightable containment cap for containing a subsea well |
| CN103717829A (en) * | 2011-04-14 | 2014-04-09 | Proserv操作股份有限公司 | Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same |
| CN107965288A (en) * | 2012-11-07 | 2018-04-27 | 越洋塞科外汇合营有限公司 | Seabed energy accumulator for preventer (BOP) |
| CN108625822A (en) * | 2018-05-08 | 2018-10-09 | 海峰深水（天津）技术服务有限公司 | A kind of multistage sequence trigger switch automatic shearing tubing string and can seal the emergency system of wellbore |
| CN112763247A (en) * | 2020-12-24 | 2021-05-07 | 中国石油大学(北京) | Deepwater underwater wellhead simulation test device |
| CN114109293A (en) * | 2016-07-05 | 2022-03-01 | 艾奎诺能源公司 | Subsea wellhead assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69232736T2 (en) * | 1992-06-01 | 2002-12-12 | Cooper Cameron Corp | wellhead |
| BR9301601A (en) * | 1993-04-20 | 1994-11-08 | Petroleo Brasileiro Sa | Process for connecting the production pipeline from an underwater well to the wet Christmas tree using an eccentric column hanger and a special set installation tool |
| CN2346925Y (en) * | 1998-03-06 | 1999-11-03 | 石斌 | Fully enclosed anti-theft light weight eccentric christmas tree wellhead assembly |
| GB2391241B (en) * | 2001-04-17 | 2005-05-18 | Fmc Technologies | Nested stack-down casing hanger system for subsea wellheads for annulus pressure monitoring |
| CN1584285A (en) * | 2003-08-22 | 2005-02-23 | 沈阳市军威石油机械厂 | Automatic-control multi-layer water injecting well top |
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2006
- 2006-05-10 CN CN200680017334.3A patent/CN101208495B/en not_active Expired - Fee Related
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| CN103717829A (en) * | 2011-04-14 | 2014-04-09 | Proserv操作股份有限公司 | Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same |
| CN103582740A (en) * | 2011-06-17 | 2014-02-12 | Bp北美公司 | Air-freightable containment cap for containing a subsea well |
| CN107965288A (en) * | 2012-11-07 | 2018-04-27 | 越洋塞科外汇合营有限公司 | Seabed energy accumulator for preventer (BOP) |
| US11060372B2 (en) | 2012-11-07 | 2021-07-13 | 1169997 Ontario Ltd. Operating As Aspin Kemp & Associates | Subsea energy storage for blow out preventers (BOP) |
| CN114109293A (en) * | 2016-07-05 | 2022-03-01 | 艾奎诺能源公司 | Subsea wellhead assembly |
| CN108625822A (en) * | 2018-05-08 | 2018-10-09 | 海峰深水（天津）技术服务有限公司 | A kind of multistage sequence trigger switch automatic shearing tubing string and can seal the emergency system of wellbore |
| CN108625822B (en) * | 2018-05-08 | 2024-04-02 | 海一峰深水（天津）技术服务有限公司 | Multistage sequential triggering emergency system capable of automatically shearing tubular column and sealing well hole |
| CN112763247A (en) * | 2020-12-24 | 2021-05-07 | 中国石油大学(北京) | Deepwater underwater wellhead simulation test device |
| CN112763247B (en) * | 2020-12-24 | 2022-02-01 | 中国石油大学(北京) | Deepwater underwater wellhead simulation test device |
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| CN101208495B (en) | 2013-03-20 |
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