CN105649568A - Hydraulic releasing wellhead hanger and flowing-to-mechanical-production integrated assembly - Google Patents
Hydraulic releasing wellhead hanger and flowing-to-mechanical-production integrated assembly Download PDFInfo
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- CN105649568A CN105649568A CN201610142906.6A CN201610142906A CN105649568A CN 105649568 A CN105649568 A CN 105649568A CN 201610142906 A CN201610142906 A CN 201610142906A CN 105649568 A CN105649568 A CN 105649568A
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- sleeve
- land
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- 238000004519 manufacturing process Methods 0.000 title abstract description 14
- 210000002445 nipple Anatomy 0.000 claims abstract description 21
- 239000000725 suspension Substances 0.000 claims abstract description 19
- 210000000078 claw Anatomy 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 43
- 235000017771 Acacia greggii Nutrition 0.000 claims description 33
- 241000372389 Anigozanthos humilis Species 0.000 claims description 33
- 238000007664 blowing Methods 0.000 claims description 15
- 230000002349 favourable effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 11
- 238000005553 drilling Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000012857 repacking Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of a flowing-to-mechanical-production integrated device, and particularly relates to a hydraulic releasing wellhead hanger and a flowing-to-mechanical-production integrated assembly. The hydraulic releasing wellhead hanger comprises an inner barrel, a shear pin, a pressure holding sleeve and an outer barrel; a pressure holding cavity is formed between the inside of the pressure holding sleeve and the outside of the inner barrel; a pressure transmission hole communicated with the pressure holding cavity is formed in the side wall of the inner barrel, which corresponds to the position of the pressure holding cavity; the outside of the pressure holding sleeve is sleeved by a suspension claw sleeve capable of moving upwards together with the pressure holding sleeve; the lower part of the suspension claw sleeve is separated by a longitudinal groove peripherally distributed to form at least two claw petals; a paw is fixedly arranged at the lower end of each claw petal. The flowing-to-mechanical-production integrated assembly comprises a specially-made tubing nipple and the hydraulic releasing wellhead hanger. The hydraulic releasing wellhead hanger and the flowing-to-mechanical-production integrated assembly are applicable to the flowing-to-mechanical-production operation in the drilling and completion construction operation of a vertical well or a special well so as to replace a construction process adopting a modified blowout preventer or a specially-made blowout preventer in the prior art, thereby eliminating caused potential safety hazards; and the oil production cost also can be greatly reduced, and the working efficiency is improved.
Description
Technical field
The present invention relates to blowing favourable turn and adopt integrated apparatus technical field, be a kind of hydraulic releasing well mouth hanger and blowing favourable turn adopts integral component.
Background technology
Straight well or exceptional well be drilled well construction operation after, for saving cost, the later stage no longer transfers pump with rod with workover rig, and usual way is for just transferring to precalculated position by rod-type pumping unit when drilling equipment fills production tree. This construction technology needs a kind of blowing favourable turn to adopt integrated apparatus, this device can with particular oils pipe joint inwall with the use of, blowing does not affect the new tool of the construction operations such as later stage mechanical oil recovery after terminating. And the mode of routine is by resuspending rod-type pumping unit after reequiping preventer or special preventer, this mode can have very big potential safety hazard when going out oil gas, equally, special preventer causes that expense increases, therefore, conventional hang also exists very big potential safety hazard or the problem of the high cost special preventer of making.
Summary of the invention
The invention provides a kind of hydraulic releasing well mouth hanger and blowing favourable turn adopts integral component, overcome the deficiency of above-mentioned prior art, it can effectively solve existing blowing favourable turn and adopt the cost of manufacture height adopting repacking preventer or special preventer existing for integrated apparatus, efficiency of construction is relatively low, cause that cost for oil production increases, and the problem that there is potential safety hazard.
One of technical scheme is realized by following measures: a kind of hydraulic releasing well mouth hanger, including inner core, shear pin, the sleeve that builds the pressure, limiting component, suspension pawl set, lower contact and urceolus, it is installed with, by shear pin, the sleeve that builds the pressure outside the middle part of inner core, build the pressure and be provided with, between inner side and the outside of inner core of sleeve, the chamber that builds the pressure, the build the pressure sidewall of inner core of position, chamber of correspondence is provided with the pressure transmission hole communicated with the chamber that builds the pressure, and side is provided with and can limit the limiting component that the sleeve that builds the pressure is descending outer tube; Outer sheath at the sleeve that builds the pressure is separated to form at least two Piece Claw lobes equipped with the bottom that with the up suspension pawl set of the sleeve that builds the pressure, can hang pawl set by circumferential cannelure, and the lower end of every Piece Claw lobe is respectively and fixedly provided with cat's paw; The lower outside of inner core and the upper inner of lower contact are fixedly installed togather, the endoporus of the lower contact of corresponding inner core lower position forms the passage that builds the pressure that the ball that can make to build the pressure sets, the upper end of lower contact be provided externally with can inside spacing cat's paw with preventing claw tooth to the outer groove of contract, and the bottom of each pawl lobe is all in outwards expanding shape; The upper outside of inner core is installed with can shrink pawl lobe bottom in hanging the process that pawl set is up and can limit the urceolus of the sleeve displacement that builds the pressure; The upper inner of urceolus is provided with female thread, and the lower outside of lower contact is provided with external screw thread.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
The above-mentioned inside middle portion at the sleeve that builds the pressure can be provided with interior land, in corresponding, be provided with between sleeve can by building the pressure the upper skeleton sealing ring cutting off shear pin and the sleeve that builds the pressure can be promoted up under the effect of high-pressure fluid for the inner core and building the pressure of land top position, it is provided with top in corresponding outside the inner core of land lower position and is sleeved on the limiting component inside the lower cartridge that builds the pressure, the inner core of position and build the pressure and be provided with lower skeleton sealing ring between sleeve between land and limiting component in corresponding;The inner core of position and build the pressure and form the chamber that builds the pressure between sleeve between corresponding upper skeleton sealing ring and lower skeleton sealing ring.
The above-mentioned sleeve that builds the pressure can include fixing cylinder and connecting cylinder, in the middle part of inner core, outside is from top to bottom set with fixing cylinder and connecting cylinder successively, fixing cylinder is fixedly installed togather by shear pin and inner core, it is fixedly installed togather inside the fixing lower end outside of cylinder and the upper end of connecting cylinder, it is provided with interior land at the middle part of connecting cylinder, the inwall of interior land and and the outer wall of inner core between have spacing, it is provided with upper skeleton sealing ring between inner core and the connecting cylinder of position bottom corresponding fixing cylinder and between interior land top, form, between inner core and the connecting cylinder of position, the chamber that builds the pressure between corresponding upper skeleton sealing ring and lower skeleton sealing ring, it is provided with outer chuck outside the middle part of fixing cylinder, inside the upper end hanging pawl set of corresponding outer chuck top position, is provided with seat internal ring chuck in outer chuck.
Above-mentioned fixing cylinder can include retaining ring and shear pin cylinder, in the middle part of inner core, outside is from top to bottom set with retaining ring and shear pin cylinder successively, being provided with inside the upper end of retaining ring and be sleeved on outside inner core and the righting land playing the guiding role in up process, the lower outside at retaining ring is provided with outer chuck; The top of shear pin cylinder is sleeved on the lower inside of retaining ring, it is provided with support platform outside the shear pin cylinder of corresponding retaining ring lower position, the bottom surface seat of retaining ring is in supporting on platform and retaining ring is fixedly installed togather with shear pin cylinder, and shear pin cylinder and inner core are fixedly installed togather by shear pin; It is fixedly installed togather inside the lower end outside of shear pin cylinder and the upper end of connecting cylinder.
Above-mentioned limiting component can include position-limiting drum and spacing ring, position-limiting drum and spacing ring from top to bottom it is set with successively outside the inner core of corresponding lower skeleton sealing ring lower position, the upper end of position-limiting drum is against the lower end of lower skeleton sealing ring, the lower end of position-limiting drum is against the top of spacing ring, it is provided with, outside the inner core of corresponding spacing ring position, the outer groove that spacing ring can be made to embed, the bottom surface projection of spacing ring is C-shaped, is installed with anti-rotation nail outside the inner core of corresponding spacing ring aperture position; The upper end inner sleeve of lower contact is contained in the lower end outside of position-limiting drum, and spacing ring is pressed together in outer groove by the inwall of the lower contact of corresponding spacing ring position; The upper inner of lower contact of corresponding outer groove lower position is threaded connection with the lower outside of inner core and is fixedly installed togather, it is provided with general sealing ring between outside the inner core of corresponding threaded connection place lower position and inside lower contact, it is provided with, inside the lower contact of corresponding inner core lower position, the pressure-bearing land that end face is against on inner core bottom surface, the endoporus of pressure-bearing land forms the passage that builds the pressure, the passage that builds the pressure includes the big footpath section, reducer and the path section that are from top to bottom sequentially distributed, and reducer is back taper mesa-shaped.
The bottom of above-mentioned urceolus can be sleeved on suspension pawl set outside, the lower surface of pawl lobe is positioned at the lower section of urceolus, and have spacing between the lower surface of pawl lobe and the lower surface of urceolus, the build the pressure upper inner of urceolus of sleeve top position of correspondence is provided with installation land, and the upper outside of the inner side and inner core of installing land is threadably secured and is installed together.
The upper inner of the installation land of above-mentioned corresponding inner core top position can be provided with the land that binds, and the end face of inner core is against on the bottom surface of the land that binds, correspondence bind land lower position inner core and urceolus between be provided with general sealing ring.
The sidewall of above-mentioned urceolus can circumferentially have relief hole, be provided with the flow channels that can connect outside pawl set inner chamber and lower contact on the top of lower contact.
The bottom land angle of above-mentioned outer groove can be obtuse angle, and the bottom land angle of the inner lower angle of cat's paw and outer groove matches, and the outside upper end face of cat's paw is outside inclined downward shape, and the outer bottom surface of cat's paw is outside inclined upward shape.
The two of technical scheme are realized by following measures: a kind of blowing favourable turn adopting above-mentioned hydraulic releasing well mouth hanger adopts integral component, including special tubing nipple with the spacing hydraulic releasing well mouth hanger released between special tubing nipple that builds the pressure can be passed through, the special tubing nipple inwall of the cat's paw position of corresponding hydraulic releasing well mouth hanger is provided with embedded groove or embedded annular groove, and cat's paw is embedded in embedded groove or embedded annular groove.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
The end face of above-mentioned embedded groove or embedded annular groove can be all skewed with what corresponding cat's paw's end face matched.
The lower end outside of above-mentioned special tubing nipple can be fixed with tubing coupling.
Present configuration is reasonable and compact, easy to use, it not only can be hung smoothly by the mating reaction of build the pressure sleeve and suspension pawl set, also can hang by Rapid reversal, and stability is high, practical, the blowing being drilled in the well construction operation favourable turn being particularly suited for straight well or exceptional well adopts operation, thus can replace the construction technology adopting repacking preventer or special preventer in prior art, thus eliminating the potential safety hazard thus brought, cost for oil production also can be greatly reduced, and improve work efficiency.
Accompanying drawing explanation
The master that accompanying drawing 1 is the embodiment of the present invention one looks half section structural representation.
Accompanying drawing 2 is the accompanying drawing 1 partial enlargement structural representation at A place.
The master that accompanying drawing 3 is the embodiment of the present invention two looks half section structural representation.
Coding in accompanying drawing is respectively as follows: 1 for inner core, 2 is shear pin, 3 for hanging pawl set, 4 is lower contact, 5 is urceolus, 6 is the chamber that builds the pressure, 7 is pressure transmission hole, 8 is pawl lobe, 9 is cat's paw, 10 is the passage that builds the pressure, 11 is female thread, 12 is external screw thread, 13 is interior land, 14 is upper skeleton sealing ring, 15 is lower skeleton sealing ring, 16 for installing land, 17 is the land that binds, 18 is general sealing ring, 19 is connecting pin, 20 is connecting cylinder, 21 is outer chuck, 22 is internal ring chuck, 23 is retaining ring, 24 is shear pin cylinder, 25 is righting land, 26 for supporting platform, 27 is position-limiting drum, 28 is spacing ring, 29 is pressure-bearing land, 30 is relief hole, 31 is flow channels, 32 is special tubing nipple, 33 is embedded annular groove, 34 is tubing coupling, 35 is the ball that builds the pressure, 36 is retaining annular groove.
Detailed description of the invention
The present invention, not by the restriction of following embodiment, can determine specific embodiment according to technical scheme and practical situation.
In the present invention, for the ease of describing, the Butut mode that the description of the relative position relation of each parts is all according to Figure of description 1 is described, as: the position relationship of forward and backward, upper and lower, left and right etc. is based on what the Butut direction of Figure of description was determined.
Below in conjunction with embodiment and accompanying drawing, the invention will be further described:
Embodiment one: as shown in accompanying drawing 1,2,3, this hydraulic releasing well mouth hanger includes inner core 1, shear pin 2, the sleeve that builds the pressure, limiting component, suspension pawl set 3, lower contact 4 and urceolus 5, it is installed with, by shear pin 2, the sleeve that builds the pressure outside the middle part of inner core 1, build the pressure and be provided with, between inner side and the outside of inner core 1 of sleeve, the chamber 6 that builds the pressure, the build the pressure sidewall of inner core 1 of position, chamber 6 of correspondence is provided with the pressure transmission hole 7 communicated with the chamber 6 that builds the pressure, and is provided with and can limit the limiting component that the sleeve that builds the pressure is descending outside inner core 1; The sleeve that builds the pressure outer sheath equipped with can with the sleeve that builds the pressure up suspension pawl set 3, hang pawl set 3 bottom be separated to form at least two Piece Claw lobes 8 by circumferential cannelure, the lower end of every Piece Claw lobe 8 is respectively and fixedly provided with cat's paw 9;The upper inner of the lower outside of inner core 1 and lower contact 4 is fixedly installed togather, the endoporus of the lower contact 4 of corresponding inner core 1 lower position forms the passage 10 that builds the pressure that the ball 35 that can make to build the pressure sets, the upper end of lower contact 4 be provided externally with can inside spacing cat's paw 9 with preventing claw tooth 9 to the outer groove of contract, and the bottom of each pawl lobe 8 is all in outwards expanding shape, the upper outside of inner core 1 is installed with can overlap and shrink pawl lobe 8 bottom hanging pawl in 3 up processes and can limit the urceolus 5 of the sleeve displacement that builds the pressure, the upper inner of urceolus 5 is provided with female thread 11, and the lower outside of lower contact 4 is provided with external screw thread 12. according to demand, limiting component can be integrated with inner core 1, or is fixedly mounted on outside inner core 1. in use, the present embodiment can be connected in default pipe string and in well, each cat's paw 9 is made to be suspended in the sleeve of correspondence by outside embedding, the ball 35 that builds the pressure can be put into when pipe string is lifted up by needs, the ball 35 that builds the pressure will come downwards to set in pipe string and build the pressure on passage 10, now can pour into high-pressure fluid in pipe string, high-pressure fluid by descending and by build the pressure ball 35 closure by pressure transmission hole 7 flow into build the pressure in chamber 6, high-pressure fluid will be gradually increased at the pressure built the pressure in chamber 6 until cutting off shear pin 2, then the sleeve that promotion built the pressure is up, now hanging pawl set 3 will be up with the sleeve that builds the pressure, the bottom of pawl lobe 8 by under the effect of urceolus 5 to contract, cat's paw 9 by release in up process the spacing of outer groove and and sleeve between outer suspension, thus the present embodiment institute connecting tube string can be lifted up smoothly, the present embodiment simple in construction, easy to use, adopting the present embodiment to carry out hanging operation not only can hang smoothly, also can hang by Rapid reversal, stability is high, practical, the blowing being drilled in the well construction operation favourable turn being particularly suited for straight well or exceptional well adopts operation, thus can replace the construction technology adopting repacking preventer or special preventer in prior art, thus eliminating the potential safety hazard thus brought, cost for oil production also can be greatly reduced, and improve work efficiency.
According to actual needs, above-mentioned hydraulic releasing well mouth hanger can be made further optimization and/or improvements:
As shown in accompanying drawing 1,2,3, inside middle portion at the sleeve that builds the pressure is provided with interior land 13, in corresponding, be provided with between sleeve can by building the pressure the upper skeleton sealing ring 14 cutting off shear pin 2 and the sleeve that builds the pressure can be promoted up under the effect of high-pressure fluid for the inner core 1 and building the pressure of land 13 top position, it is provided with top in corresponding outside the inner core 1 of land 13 lower position and is sleeved on the limiting component inside the lower cartridge that builds the pressure, the inner core 1 of position and build the pressure and be provided with lower skeleton sealing ring 15 between sleeve between land 13 and limiting component in corresponding; The inner core 1 of position and build the pressure and form the chamber 6 that builds the pressure between sleeve between corresponding upper skeleton sealing ring 14 and lower skeleton sealing ring 15. In use, lower skeleton sealing ring 15 will keep original position constant under the active force of limiting component, when the pressure of the high-pressure fluid in the chamber 6 that builds the pressure is gradually increased to when can cut off shear pin 2, shear pin 2 will be cut off moment, and upper skeleton sealing ring 14 will promote the sleeve that builds the pressure up under the effect of high-pressure fluid. According to demand, upper skeleton sealing ring 14 and lower skeleton sealing ring 15 are backbone sealing ring.
Such as accompanying drawing 1, 2, shown in 3, the sleeve that builds the pressure includes fixing cylinder and connecting cylinder 20, in the middle part of inner core 1, outside is from top to bottom set with fixing cylinder and connecting cylinder 20 successively, fixing cylinder is fixedly installed togather by shear pin 2 and inner core 1, it is fixedly installed togather inside the fixing lower end outside of cylinder and the upper end of connecting cylinder 20, interior land 13 it is provided with at the middle part of connecting cylinder 20, the inwall of interior land 13 and and the outer wall of inner core 1 between have spacing, it is provided with upper skeleton sealing ring 14 between inner core 1 and the connecting cylinder 20 of position bottom corresponding fixing cylinder and between interior land 13 top, form, between inner core 1 and the connecting cylinder 20 of position, the chamber 6 that builds the pressure between corresponding upper skeleton sealing ring 14 and lower skeleton sealing ring 15,It is provided with outer chuck 21 outside the middle part of fixing cylinder, inside the upper end hanging pawl set 3 of corresponding outer chuck 21 top position, is provided with seat internal ring chuck 22 in outer chuck 21. It so can be made to process laborsaving with easier for installation. According to demand, outer chuck 21 can be annular table, it is possible to for being distributed in the boss outside fixing cylinder.
As shown in accompanying drawing 1,2,3, fixing cylinder includes retaining ring 23 and shear pin cylinder 24, in the middle part of inner core 1, outside is from top to bottom set with retaining ring 23 and shear pin cylinder 24 successively, being provided with inside the upper end of retaining ring 23 and be sleeved on outside inner core 1 and the righting land 25 playing the guiding role in up process, the lower outside at retaining ring 23 is provided with outer chuck 21, the top of shear pin cylinder 24 is sleeved on the lower inside of retaining ring 23, support platform 26 it is provided with outside the shear pin cylinder 24 of corresponding retaining ring 23 lower position, the bottom surface seat of retaining ring 23 is in supporting on platform 26 and retaining ring 23 is fixedly installed togather with shear pin cylinder 24, and shear pin cylinder 24 is fixedly installed togather by shear pin 2 with inner core 1, it is fixedly installed togather inside the lower end outside of shear pin cylinder 24 and the upper end of connecting cylinder 20. according to demand, shear pin cylinder 24 can be located at support platform 26 position, now supports platform 26 and the junction of shear pin cylinder 24 can be played booster action, can being matched in clearance between internal diameter and inner core 1 external diameter of correspondence position of righting land 25, both so can being made to be maintained with good axiality what mutually move smoothly, thus playing guide effect, it is ensured that the smooth releasing of suspension, supporting platform 26 can be annular table, it is possible to for being distributed in the boss outside fixing cylinder, so can retaining ring 23 be played a supporting role, retaining ring 23 can be fixedly installed togather by connecting pin 19 with supporting platform 26, it is possible to is threaded connection and is fixedly installed togather, and it coordinates support platform 26 all can strengthen the stability of connection, can be susceptible to external force impact and cause Joint failure, fixing cylinder can be integrated, it is possible to for split type, adopts that split type to make it process laborsaving with easier for installation, retaining ring 23 is alternatively C-shaped ring, corresponding righting land 25 is also matched C-shaped ring, retaining ring 23 is strutted the outside being sleeved on inner core 1, it is provided with, outside the inner core 1 of corresponding retaining ring 23 top position, the retaining annular groove 36 that righting land 25 can be made to embed when retaining ring 23 is up, wherein retaining ring 23 go upward to righting land 25 be positioned at retaining annular groove 36 place time, softened retaining ring 23 is by retracted for clearance, so that righting land 25 snaps in retaining annular groove 36, now retaining annular groove 36 is to the displacement up by forming the sleeve that builds the pressure of the distance between righting land 25.
As shown in accompanying drawing 1,2,3, limiting component includes position-limiting drum 27 and spacing ring 28, position-limiting drum 27 and spacing ring 28 from top to bottom it is set with successively outside the inner core 1 of corresponding lower skeleton sealing ring 15 lower position, the upper end of position-limiting drum 27 is against the lower end of lower skeleton sealing ring 15, the lower end of position-limiting drum 27 is against the top of spacing ring 28, it is provided with, outside the inner core 1 of corresponding spacing ring 28 position, the outer groove that spacing ring 28 can be made to embed, the bottom surface projection of spacing ring 28 is C-shaped, is installed with anti-rotation nail outside the inner core 1 of corresponding spacing ring 28 aperture position; The upper end inner sleeve of lower contact 4 is contained in the lower end outside of position-limiting drum 27, and spacing ring 28 is pressed together in outer groove by the inwall of the lower contact 4 of corresponding spacing ring 28 position; The upper inner of lower contact 4 of corresponding outer groove lower position is threaded connection with the lower outside of inner core 1 and is fixedly installed togather, it is provided with general sealing ring 18 between outside the inner core 1 of corresponding threaded connection place lower position and inside lower contact 4, it is provided with, inside the lower contact 4 of corresponding inner core 1 lower position, the pressure-bearing land 29 that end face is against on inner core 1 bottom surface, the endoporus of pressure-bearing land 29 forms the passage 10 that builds the pressure, the passage 10 that builds the pressure includes the big footpath section, reducer and the path section that are from top to bottom sequentially distributed, and reducer is back taper mesa-shaped.Can make to be formed between inner core 1 and lower contact 4 good sealing by the design of lower contact 4, and the passage 10 that makes to build the pressure can guide the ball 35 that builds the pressure to set smoothly. According to demand, limiting component can be integrated, and when it adopts integral type, limiting component can be sleeved on outside inner core 1 or be fixed on the tubular outside inner core 1 for spacing, it is possible to for being fixed on the fixed block outside inner core 1; Limiting component is alternatively split type, adopts that split type to make it process laborsaving with easier for installation.
As shown in accompanying drawing 1,2,3, the bottom of urceolus 5 is sleeved on outside suspension pawl set 3, the lower surface of pawl lobe 8 is positioned at the lower section of urceolus 5, and have spacing between the lower surface of the lower surface of pawl lobe 8 and urceolus 5, the build the pressure upper inner of urceolus 5 of sleeve top position of correspondence is provided with installation land 16, and the upper outside of the inner side and inner core 1 of installing land 16 is threadably secured and is installed together. In use build the pressure sleeve by up under the effect of high-pressure fluid, until the end face of the sleeve that builds the pressure is against on the bottom surface installing land 16, now can make each cat's paw 9 all and release between sleeve to hang, it is ensured that the connecting tube string of the present embodiment can lift up smoothly. According to demand, when not setting up retaining annular groove 36 outside inner core 1, installing the bottom surface of land 16 by the up formation of the sleeve that builds the pressure is spacing, formation is built the pressure the up displacement of sleeve by the end face of the sleeve that now builds the pressure to the distance installed between the bottom surface of land 16.
As shown in accompanying drawing 1,2,3, the upper inner of the installation land 16 of corresponding inner core 1 top position is provided with the land 17 that binds, the end face of inner core 1 is against on the bottom surface of the land 17 that binds, correspondence bind land 17 lower position inner core 1 and urceolus 5 between be provided with general sealing ring 18. Both so can be made to have good sealing while keeping firm connection.
As shown in accompanying drawing 1,2,3, the sidewall of urceolus 5 circumferentially has relief hole 30, be provided with the flow channels 31 that can connect outside pawl set inner chamber and lower contact 4 on the top of lower contact 4. So can ensure that suspension pawl set 3 can be up smoothly under the effect of the sleeve that builds the pressure, it is prevented that stuck phenomenon occurs.
As shown in accompanying drawing 1,2,3, the bottom land angle of outer groove is obtuse angle, and the bottom land angle of the inner lower angle of cat's paw 9 and outer groove matches, and the outside upper end face of cat's paw 9 is outside inclined downward shape, and the outer bottom surface of cat's paw 9 is outside inclined upward shape. According to demand, with lower contact 4 external diameter for demarcation line, bottom surface projection is positioned at cat's paw 9 local of demarcation line and is called cat's paw 9, and cat's paw 9 local that bottom surface projection is positioned at outside demarcation line is called outside cat's paw 9. So can be easy to the spacing suspension of cat's paw 9 and release suspension.
Embodiment two: as shown in accompanying drawing 2,3, a kind of blowing favourable turn using above-mentioned hydraulic releasing well mouth hanger adopts integral component, including special tubing nipple 32 with the spacing hydraulic releasing well mouth hanger released between special tubing nipple 32 that builds the pressure can be passed through, special tubing nipple 32 inwall of cat's paw 9 position of corresponding hydraulic releasing well mouth hanger is provided with embedded groove or embedded annular groove 33, and cat's paw 9 is embedded in embedded groove or embedded annular groove 33. Wherein, described special tubing nipple 32 refers to the tubing nipple being provided with embedded groove or embedded annular groove 33 on the relevant position of inwall; In use, the upper end of special tubing nipple 32 and production tree are linked together, the lower end of special tubing nipple 32 and general tubing nipple are linked together, the top of urceolus 5 and polished rod cylinder are linked together, the bottom of lower contact 4 and sucker rod to be extracted are linked together, blowing effect is carried out when thus can make it in the suspension of hydraulic releasing well mouth hanger with special tubing nipple 32, built the pressure ball 35 contact suspension by throwing when needs favourable turn is adopted, thus sucker rod to be extracted upwards can being proposed, carrying out machine by connection relevant device and adopting effect;Whole process operation is simple, easy to use, can improve the safety coefficient of operation, cost for oil production is greatly reduced, and improves work efficiency.
According to actual needs, above-mentioned blowing favourable turn can be adopted integral component and makes further optimization and/or improvements:
As shown in accompanying drawing 2,3, the end face of embedded groove or embedded annular groove 33 is all in skewed with what corresponding cat's paw 9 end face matched. So can make to be easy to release to hang.
As shown in accompanying drawing 2,3, the lower end outside of special tubing nipple 32 is fixed with tubing coupling 34. So can make it and more convenient by the connection between tubing nipple.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a hydraulic releasing well mouth hanger, it is characterized in that including inner core, shear pin, the sleeve that builds the pressure, limiting component, suspension pawl set, lower contact and urceolus, it is installed with, by shear pin, the sleeve that builds the pressure outside the middle part of inner core, build the pressure and be provided with, between inner side and the outside of inner core of sleeve, the chamber that builds the pressure, the build the pressure sidewall of inner core of position, chamber of correspondence is provided with the pressure transmission hole communicated with the chamber that builds the pressure, and side is provided with and can limit the limiting component that the sleeve that builds the pressure is descending outer tube; Outer sheath at the sleeve that builds the pressure is separated to form at least two Piece Claw lobes equipped with the bottom that with the up suspension pawl set of the sleeve that builds the pressure, can hang pawl set by circumferential cannelure, and the lower end of every Piece Claw lobe is respectively and fixedly provided with cat's paw; The lower outside of inner core and the upper inner of lower contact are fixedly installed togather, the endoporus of the lower contact of corresponding inner core lower position forms the passage that builds the pressure that the ball that can make to build the pressure sets, the upper end of lower contact be provided externally with can inside spacing cat's paw with preventing claw tooth to the outer groove of contract, and the bottom of each pawl lobe is all in outwards expanding shape; The upper outside of inner core is installed with can shrink pawl lobe bottom in hanging the process that pawl set is up and can limit the urceolus of the sleeve displacement that builds the pressure; The upper inner of urceolus is provided with female thread, and the lower outside of lower contact is provided with external screw thread.
2. hydraulic releasing well mouth hanger according to claim 1, it is characterized in that being provided with interior land at the inside middle portion of the sleeve that builds the pressure, in corresponding, be provided with between sleeve can by building the pressure the upper skeleton sealing ring cutting off shear pin and the sleeve that builds the pressure can be promoted up under the effect of high-pressure fluid for the inner core and building the pressure of land top position, it is provided with top in corresponding outside the inner core of land lower position and is sleeved on the limiting component inside the lower cartridge that builds the pressure, the inner core of position and build the pressure and be provided with lower skeleton sealing ring between sleeve between land and limiting component in corresponding; The inner core of position and build the pressure and form the chamber that builds the pressure between sleeve between corresponding upper skeleton sealing ring and lower skeleton sealing ring.
3. hydraulic releasing well mouth hanger according to claim 2, the sleeve that it is characterized in that building the pressure includes fixing cylinder and connecting cylinder, in the middle part of inner core, outside is from top to bottom set with fixing cylinder and connecting cylinder successively, fixing cylinder is fixedly installed togather by shear pin and inner core, it is fixedly installed togather inside the fixing lower end outside of cylinder and the upper end of connecting cylinder, it is provided with interior land at the middle part of connecting cylinder, the inwall of interior land and and the outer wall of inner core between have spacing, it is provided with upper skeleton sealing ring between inner core and the connecting cylinder of position bottom corresponding fixing cylinder and between interior land top, form, between inner core and the connecting cylinder of position, the chamber that builds the pressure between corresponding upper skeleton sealing ring and lower skeleton sealing ring, it is provided with outer chuck outside the middle part of fixing cylinder, inside the upper end hanging pawl set of corresponding outer chuck top position, is provided with seat internal ring chuck in outer chuck.
4. hydraulic releasing well mouth hanger according to claim 3, it is characterized in that fixing cylinder includes retaining ring and shear pin cylinder, in the middle part of inner core, outside is from top to bottom set with retaining ring and shear pin cylinder successively, being provided with inside the upper end of retaining ring and be sleeved on outside inner core and the righting land playing the guiding role in up process, the lower outside at retaining ring is provided with outer chuck;The top of shear pin cylinder is sleeved on the lower inside of retaining ring, it is provided with support platform outside the shear pin cylinder of corresponding retaining ring lower position, the bottom surface seat of retaining ring is in supporting on platform and retaining ring is fixedly installed togather with shear pin cylinder, and shear pin cylinder and inner core are fixedly installed togather by shear pin; It is fixedly installed togather inside the lower end outside of shear pin cylinder and the upper end of connecting cylinder.
5. hydraulic releasing well mouth hanger according to claim 4, it is characterized in that limiting component includes position-limiting drum and spacing ring, position-limiting drum and spacing ring from top to bottom it is set with successively outside the inner core of corresponding lower skeleton sealing ring lower position, the upper end of position-limiting drum is against the lower end of lower skeleton sealing ring, the lower end of position-limiting drum is against the top of spacing ring, it is provided with, outside the inner core of corresponding spacing ring position, the outer groove that spacing ring can be made to embed, the bottom surface projection of spacing ring is C-shaped, is installed with anti-rotation nail outside the inner core of corresponding spacing ring aperture position; The upper end inner sleeve of lower contact is contained in the lower end outside of position-limiting drum, and spacing ring is pressed together in outer groove by the inwall of the lower contact of corresponding spacing ring position; The upper inner of lower contact of corresponding outer groove lower position is threaded connection with the lower outside of inner core and is fixedly installed togather, it is provided with general sealing ring between outside the inner core of corresponding threaded connection place lower position and inside lower contact, it is provided with, inside the lower contact of corresponding inner core lower position, the pressure-bearing land that end face is against on inner core bottom surface, the endoporus of pressure-bearing land forms the passage that builds the pressure, the passage that builds the pressure includes the big footpath section, reducer and the path section that are from top to bottom sequentially distributed, and reducer is back taper mesa-shaped.
6. the hydraulic releasing well mouth hanger according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that the bottom of urceolus is sleeved on suspension pawl set outside, the lower surface of pawl lobe is positioned at the lower section of urceolus, and have spacing between the lower surface of pawl lobe and the lower surface of urceolus, the build the pressure upper inner of urceolus of sleeve top position of correspondence is provided with installation land, and the upper outside of the inner side and inner core of installing land is threadably secured and is installed together.
7. hydraulic releasing well mouth hanger according to claim 6, it is characterized in that the upper inner of the installation land of corresponding inner core top position is provided with the land that binds, the end face of inner core is against on the bottom surface of the land that binds, correspondence bind land lower position inner core and urceolus between be provided with general sealing ring.
8. hydraulic releasing well mouth hanger according to claim 7, it is characterised in that circumferentially have relief hole on the sidewall of urceolus, is provided with the flow channels that can connect outside pawl set inner chamber and lower contact on the top of lower contact; Or/and, the bottom land angle of outer groove is obtuse angle, and the bottom land angle of the inner lower angle of cat's paw and outer groove matches, and the outside upper end face of cat's paw is outside inclined downward shape, and the outer bottom surface of cat's paw is outside inclined upward shape.
9. the blowing favourable turn of the hydraulic releasing well mouth hanger that a kind adopts according to any one of claim 1 to 8 adopts integral component, it is characterized in that including special tubing nipple and the spacing hydraulic releasing well mouth hanger building the pressure between releasing and special tubing nipple being passed through, the special tubing nipple inwall of the cat's paw position of corresponding hydraulic releasing well mouth hanger is provided with embedded groove or embedded annular groove, and cat's paw is embedded in embedded groove or embedded annular groove.
10. blowing according to claim 9 favourable turn adopts integral component, it is characterised in that the end face of embedded groove or embedded annular groove is all in skewed with what corresponding cat's paw's end face matched;Or/and, the lower end outside of special tubing nipple is fixed with tubing coupling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610142906.6A CN105649568B (en) | 2016-03-14 | 2016-03-14 | Hydraulic releasing well mouth hanger and blowing favourable turn adopt integral component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610142906.6A CN105649568B (en) | 2016-03-14 | 2016-03-14 | Hydraulic releasing well mouth hanger and blowing favourable turn adopt integral component |
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| CN105649568B CN105649568B (en) | 2018-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109958433A (en) * | 2017-12-25 | 2019-07-02 | 中国石油天然气股份有限公司 | A kind of monitoring instrument underground setting tool |
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|---|---|
| CN105649568B (en) | 2018-03-27 |
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Effective date of registration: 20201106 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |