CN203175447U - Expansion pipe twin-stage expansion device - Google Patents
Expansion pipe twin-stage expansion device Download PDFInfo
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- CN203175447U CN203175447U CN 201320086427 CN201320086427U CN203175447U CN 203175447 U CN203175447 U CN 203175447U CN 201320086427 CN201320086427 CN 201320086427 CN 201320086427 U CN201320086427 U CN 201320086427U CN 203175447 U CN203175447 U CN 203175447U
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Abstract
Provided is an expansion pipe twin-stage expansion pipe. The defects that an existing reducing expansion head props a conical piece open relying on a pulling expansion tip cone, and the purpose that the reducing expansion head expands to be of a reset size can not be guaranteed are overcome. The expansion pipe twin-stage expansion pipe is composed of an expansion pipe body on the upper portion and a transmission chamber on the lower portion. The inner diameter of the transmission chamber is larger than that of the expansion pipe body, a reducing expansion head and a sizing expansion head are arranged in the transmission chamber, the reducing expansion head is arranged under the sizing expansion head, and the largest outer diameter of the sizing expansion head is identical to the inner diameter of the transmission chamber. A center pipe is coaxially arranged in the expansion pipe, an annular space between the center pipe and the expansion pipe is provided with a plugging assembly, a hydraulic cylinder assembly, a sizing expansion head assembly, a control mechanism and a reducing expansion head assembly in sequence from top to bottom. The expansion pipe twin-stage expansion pipe has the advantages of being reasonable in structure, an expansion device can pass through a sleeve pipe or a borehole of a small size conveniently, the sleeve pipe with a large lower portion drift diameter is complemented, the expanded expansion pipe is round and normal in inner diameter, and good rockshaft conditions are provided for subsequent construction operation.
Description
Technical field
The utility model relates to a kind of oil and gas development with the expansion operation kit of expansion tube, especially relates to a kind of expansion tube twin-stage expansion gear.
Background technology
In the process of tapping the potential and upgrade technologically of old filed, in order to obtain bigger latus rectum, use the expansion tube completion sometimes.And along with Oilfield developing, being subjected to all multifactor impacts, it is more and more that the leakage of Casing Failure, distortion, dislocation etc. damage, and had a strong impact on the ordinary production in oil field, and the application life that can prolong the sleeve pipe tubing string is repaired at the damaged position of sleeve pipe.The construction of expansion tube is to utilize oil pipe or drilling rod that bloat tool and expansion tube are lowered into the precalculated position, by pumping liquid in tubing string and build the pressure, rely on fluid pressure to promote expansion-head relative expansion pipe and move, with expansion tube along the radial direction support greatly, finish the expansion process of expansion tube.
At present, expansion tube used expansion-head outside dimension in expansion process is fixed, and be installed in advance in the expansion tube bay, so the external diameter of bay is bigger than other entity part external diameter, the external diameter of the back expansion tube entity that expands is identical with the bay external diameter or bigger.Therefore, little for the top latus rectum, that the bottom latus rectum is big sleeve pipe or pit shaft, the expansion tube that can't be lowered to suitable size are subsidized the big latus rectum sleeve pipe in bottom or carry out the expansion tube completion in the pit shafts of bottom.Disclosed Chinese utility model patent on February 9th, 2011 " a kind of sheath repairing tool " (publication number CN201738854U), by the bloated head of rigidity and the bloated double expansion of elasticity, when lifting tubing string when moving up, the bloated head of rigidity carries out elementary expansion earlier, the bloated head of elasticity continues to expand then, reduce expansion resistance, expansion tube is tightly subsidized on internal surface of sleeve pipe, effectively prevent because of expansion force too high, expansion-head is stuck, cause the generation of subsidizing accidents such as inefficacy, but after the assembling of subsidy instrument, the bloated head of elasticity has been the maximum outside diameter size just, and it is little to realize that expansion tube passes through the top latus rectum, the sleeve pipe that the bottom latus rectum is big or pit shaft are subsidized or carry out the expansion tube completion in the pit shafts of bottom the big latus rectum sleeve pipe in bottom.
The patent " umbrella type variable gauge inflate tool for expansion tube " (publication number CN101906947A) that on December 8th, 2010 announced is the umbrella type variable footpath bloat tool that a kind of expansion tube is used, and comprises fixed cone and reducing awl two parts.Fixed cone is up-narrow and down-wide cone through-hole structure, opening of reducing awl is to rely on to lift the expansion addendum cone and strut the awl sheet, can not guarantee the size that the reducing expansion cone swells to and estimates, and it is discontinuous with expansion tube contacting on circumference that the reducing expansion cone swells back, therefore the internal diameter after expansion tube expands is not regular circular, is unfavorable for follow-up construction operation.
The utility model content
Rely on and lift the expansion addendum cone and strut the awl sheet in order to overcome existing reducing expansion-head, can not guarantee the size that the reducing expansion-head swells to and estimates, and it is discontinuous deficiency with expansion tube contacting on circumference that the reducing expansion-head swells back, and the utility model provides a kind of expansion tube twin-stage expansion gear.
The technical scheme that its technical problem that solves the utility model adopts is: expansion tube twin-stage expansion gear comprises expansion tube, sizing expansion-head, reducing expansion-head, hydraulic cylinder, expansion tube is made up of the expansion tube body on top and the bay of bottom, the bay internal diameter is greater than the internal diameter of expansion tube body, and expansion tube body and bay are by inclined-plane and arc surface transition; Reducing expansion-head, sizing expansion-head are positioned at bay, the sizing expansion-head is positioned at the top of reducing expansion-head, the maximum outside diameter of sizing expansion-head is identical with the internal diameter of bay, be coaxially installed with central tube in the expansion tube, the annular space between central tube and the expansion tube is equipped with grafting assembly, hydraulic cylinder assembly, sizing expansion-head assembly, controlling organization, reducing expansion-head assembly from top to bottom successively.
The epivalve body of reducing expansion-head assembly, hypovalve body, lobe body seat are from top to bottom installed successively; The outer lug boss of epivalve body upper end is installed in the groove of coupling sleeve lower end endoporus; The outer lug boss of hypovalve body lower end is installed in the groove of lobe body seat upper end endoporus.
There is radial direction through hole the hydraulic cylinder assembly piston below of central tube; Between the sizing expansion-head assembly of central tube and the reducing expansion-head assembly limited block is installed radially, a distal process of limited block is for the endoporus of central tube.
The epivalve body of reducing expansion-head assembly, the lobe number of hypovalve body are respectively more than 2 or 2, and quantity equates; Epivalve body and hypovalve body are staggered along the circle spacing, and the cross section of composition is annular.
The original state of expansion tube twin-stage expansion gear assembling, epivalve body and hypovalve axon to distance greater than reducing expansion-head epivalve body, axial distance when the hypovalve body makes up net shape.
The reducing expansion-head upper end of the epivalve body of reducing expansion-head assembly, hypovalve body combination back net shape is up big and down small Rotary-table for up-small and down-big Rotary-table, lower end; The big end of two Rotary-tables is measure-alike, by the arc surface transition.The reducing expansion-head endoporus top of epivalve body, hypovalve body combination back net shape is up-small and down-big round platform hole, and the bottom is up big and down small round platform hole.The cross section of epivalve body from top to bottom narrows down gradually, and the cross section of hypovalve body from top to bottom broadens gradually; The epivalve body of combination back net shape reducing expansion-head and the contact surface curve of hypovalve body are continuous trapezoidal arrangement at periphery, and the epivalve body equates with the radial dimension of hypovalve body on same cross section.
The original state of expansion tube twin-stage expansion gear assembling, epivalve body lower end and hypovalve body upper end tilt to central tube respectively, and the outside dimension of reducing expansion-head is less than the internal diameter size of bay.
Fixedly connected with the central tube upper end in the top connection lower end of grafting assembly; In the annular groove of top connection upper end endoporus lock ring is installed, it is fixedly connected to match with lock ring in the insertion top connection of connection-peg bottom.
The cylinder barrel endoporus of hydraulic cylinder assembly is up big and down small shoulder hole, and the cylinder barrel small diameter bore is slidingly mounted on the central tube; The annular space middle part of cylinder barrel large diameter hole and central tube is equipped with piston; The lock dog of installing in the radially lock dog groove of piston inserts the interior fixed piston of cannelure of central tube relevant position; Radial direction through hole on the central tube of piston below communicates with the annular space of cylinder barrel.The quantity of hydraulic cylinder assembly is more than 2 or 2.
The lining of sizing expansion-head assembly is slidingly mounted on the central tube, and lining is up big and down small multidiameter, and sizing expansion-head, black box are installed on the pilot pin of lining from top to bottom successively; The lining lower end is installed with adapter sleeve.The endoporus of adapter sleeve is the shoulder hole that the middle part is little, two ends are big, and minor diameter endoporus and upper end larger diameter internal bore intermediate zone are annular groove, and the limited block of controlling organization is positioned at the below of annular groove; In the cannelure of adapter sleeve middle part minor diameter endoporus the retaining ring is installed.
Lock ring is split ring, and the lock ring endoporus is pawl gingival cyst of mucous gland in the newborn structure, and the pawl gingival cyst of mucous gland in the newborn structure that matches with lock ring endoporus pawl gingival cyst of mucous gland in the newborn is arranged on the connection-peg excircle.The retaining ring is split ring, and retaining ring endoporus is pawl gingival cyst of mucous gland in the newborn structure.
By in central tube, dropping into plug, plug is sitting on the limited block, inject liquid in the central tube and build the pressure, the cylinder barrel of hydraulic cylinder assembly is to lower slider under pressure, the epivalve body that sizing expansion-head assembly, adapter sleeve drive reducing expansion-head assembly along central tube to lower slider; In the limited block on the central tube enters the annular groove of adapter sleeve, be installed in the pinning that is meshed with the central tube excircle upper inverted tooth gingival cyst of mucous gland in the newborn of correspondence position of retaining ring on the adapter sleeve, the epivalve body of reducing expansion-head assembly and hypovalve body are combined as the reducing expansion-head of net shape, and the geomery of reducing expansion-head is fixed.
The beneficial effects of the utility model are, rational in infrastructure, sizing expansion-head and the combination of reducing expansion-head are installed in the expansion tube bay, the external diameter of reducing expansion-head is less than the external diameter of sizing expansion-head, the external diameter of reducing expansion-head at first becomes bigger than sizing expansion-head when expanding construction, and external surface rounding, make the external diameter of bay become bigger, be conducive to expansion gear by sleeve pipe or the well of reduced size, the sleeve pipe that the bottom latus rectum is bigger is subsidized, or in the bigger well of latus rectum, carry out the expansion tube completion, after the expansion, expansion tube internal diameter rounding rule is for follow-up construction operation provides good wellbore conditions.
Description of drawings
Fig. 1 is the utility model expansion tube twin-stage expansion gear structural representation.
Fig. 2 is schematic diagram behind the utility model expansion tube twin-stage expansion gear input plug.
Fig. 3 is the utility model structural representation intention when working as reducing expansion-head size and determining.
Fig. 4 is the plug schematic diagram of the utility model expansion tube twin-stage expansion gear.
Among the figure: 1. connection-peg, 2. lock ring, 3. top connection, 4. central tube, 5. cylinder barrel, 6. piston, 7. lock dog, 8. expansion tube body, 9. lining, 10. sizing expansion-head, 11. black boies, 12. adapter sleeves, 13. limited block, 14. retaining rings, 15. epivalve bodies, 16. the hypovalve body, 17. lobe body seats, 18. bays, 19. plug, 20. radial direction through hole, 21. annular grooves.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.But what those skilled in the art should know is that the utility model is not limited to the listed specific embodiment, as long as spirit according to the invention all should be included in the protection domain of the present utility model.
Referring to accompanying drawing 1～4.The expansion tube of the utility model expansion tube twin-stage expansion gear is made up of the expansion tube body 8 on top and the bay 18 of bottom, and bay 18 internal diameters are greater than expansion tube body 8 internal diameters, and expansion tube body 8 and bay 18 are by inclined-plane and arc surface transition.Be coaxially installed with central tube 4 in the expansion tube, the annular space between central tube 4 and the expansion tube is equipped with grafting assembly, hydraulic cylinder assembly, sizing expansion-head assembly, controlling organization, reducing expansion-head assembly from top to bottom successively.Central tube 4 upper ends are connected with oil pipe or drilling rod by screw thread.
Reducing expansion-head, sizing expansion-head 10 are positioned at bay 18, sizing expansion-head 10 is positioned at the top of reducing expansion-head, sizing expansion-head 10 can be spherical, it also can be the combination of two round platforms, be that top is up-small and down-big round platform, the bottom is up big and down small round platform, and arc transition is passed through in the centre; The maximum outside diameter of sizing expansion-head 10 is identical with bay 18 internal diameters.
Reducing expansion-head assembly is made up of epivalve body 15, hypovalve body 16, lobe body seat 17, and from top to bottom installs successively.The outer lug boss of epivalve body 15 upper ends is installed in the groove of coupling sleeve 12 lower end endoporus; The outer lug boss of hypovalve body 16 lower ends is installed in the groove of lobe body seat 17 upper end endoporus.The epivalve body 15 of reducing expansion-head assembly, the lobe number of hypovalve body 16 are respectively more than 2 or 2, and quantity equates.Epivalve body 15, the hypovalve body 16 of reducing expansion-head assembly are staggered along the circle spacing, and the reducing expansion-head upper end of their combination back net shapes is up big and down small Rotary-table for up-small and down-big Rotary-table, lower end; The big end of two Rotary-tables is measure-alike, by the arc surface transition.The reducing expansion-head endoporus top of epivalve body 15, hypovalve body 16 combination back net shapes is up-small and down-big round platform hole, and the bottom is up big and down small round platform hole.The reducing expansion-head cross section of net shape is annular.
The cross section of epivalve body 15 from top to bottom narrows down gradually, and the cross section of hypovalve body 16 from top to bottom broadens gradually; The epivalve body 15 of combination back net shape reducing expansion-head and the contact surface curve of hypovalve body 16 are continuous trapezoidal arrangement at periphery, and epivalve body 15 equates with the radial dimension of hypovalve body 16 contact surfaces.
When expansion tube twin-stage expansion gear is the original state of assembling, gapped between epivalve body 15 and the hypovalve body 16, the axial distance when namely axial distance is greater than reducing expansion-head epivalve body 15, hypovalve body 16 combination net shapes; Epivalve body 15 lower ends and hypovalve body 16 upper ends tilt to central tube 4 respectively, and the outside dimension of reducing expansion-head is less than the internal diameter size of bay 18 at this moment.
The grafting assembly comprises connection-peg 1 and top connection 3, and insert in top connection 3 endoporus bottom of connection-peg 1, fixedlys connected with central tube 4 upper ends in top connection 3 lower ends.In the annular groove of top connection 3 upper end endoporus lock ring 2 is installed, lock ring 2 is split ring, and its endoporus is pawl gingival cyst of mucous gland in the newborn structure.Insert in the top connection 3 connection-peg 1 bottom, and its cylindrical is equipped with the pawl gingival cyst of mucous gland in the newborn that is meshed with lock ring 2 with lock ring 2 corresponding positions, and connection-peg 1 is connected with top connection 3 axial restraints.
The hydraulic cylinder assembly comprises cylinder barrel 5, piston 6 and lock dog 7.Cylinder barrel 5 endoporus are up big and down small shoulder hole, and the minor diameter circle hole sleeve of cylinder barrel 5 can slide up and down along central tube 4 on central tube 4.The major diameter circular hole of cylinder barrel 5 and the annular space of central tube 4 middle part are equipped with piston 6, in the radially lock dog groove of piston 6 lock dog 7 are installed, and an end of lock dog 7 inserts in the cannelure of central tube 4 relevant positions, with piston 6 axial restraints.There is radial direction through hole 20 below of the hydraulic cylinder assembly piston 6 of central tube 4, and radial direction through hole 20 is communicated with the annular space of central tube endoporus with cylinder barrel 5.The quantity of hydraulic cylinder assembly determines that according to the indexs such as intensity of expansion tube be generally more than 2 or 2, structure is identical.
Sizing expansion-head assembly comprises lining 9, sizing expansion-head 10, black box 11, and lining 9 is slidingly mounted on the central tube 4.Lining 9 is up big and down small multidiameter, sizing expansion-head 10, black box 11 are installed on the pilot pin of lining 9 from top to bottom successively, black box 11 is made up of several rubber rings and spacer ring usually, annular space between seal cartridge 9 and the expansion tube bay 18 is equipped with radial direction seal ring between lining 9 and the central tube 4.Lining 9 lower ends are installed with adapter sleeve 12.
The endoporus of adapter sleeve 12 is the shoulder hole that the middle part is little, two ends are big, and minor diameter endoporus and upper end larger diameter internal bore intermediate zone are annular groove 21.The limited block 13 of controlling organization is installed on the central tube 4 of annular groove 21 belows, and the end nipple of limited block 13 is for the endoporus of central tube 4.In the cannelure of adapter sleeve 12 middle part minor diameter endoporus retaining ring 14 is installed, retaining ring 14 is split ring, and endoporus is pawl gingival cyst of mucous gland in the newborn structure.On central tube 4 cylindricals of limited block 13 belows the pawl gingival cyst of mucous gland in the newborn is arranged, can with retaining ring 14 endoporus on pawl gingival cyst of mucous gland in the newborn engagement.
Referring to Fig. 2.By drop into plug 19 in central tube 4, plug 19 is sitting on the limited block 13; Inject liquid in the central tube and build the pressure, promote the cylinder barrel 5 of hydraulic cylinder assembly to lower slider, the epivalve body 15 that sizing expansion-head assembly, adapter sleeve 12 drive reducing expansion-head assemblies along central tube 4 to lower slider.In the limited block 13 on the central tube 4 enters the annular groove 21 of adapter sleeve 12, be installed in the pinning that is meshed of pawl gingival cyst of mucous gland in the newborn on central tube 4 excircles of retaining ring 14 and correspondence position on the adapter sleeve 12, the epivalve body 15 of reducing expansion-head assembly and hypovalve body 16 are combined as the reducing expansion-head of net shape, and the geomery of reducing expansion-head is fixed.
The process that application the utility model expansion tube twin-stage expansion gear carries out the expansion tube construction operation is:
At first, other component assemblings that do not comprise connection-peg 1, plug 19 are finished, and send into pit shaft, the axial distance maximum between epivalve body 15 and the hypovalve body 16 is namely gapped between epivalve body 15 and the hypovalve body 16 at this moment; Again connection-peg 1 upper end is fixedly connected on the lower end of oil pipe/drilling rod, is lowered in the expansion tube; Suitably pressurization is meshed the pawl gingival cyst of mucous gland in the newborn of pawl gingival cyst of mucous gland in the newborn and lock ring 2 on the connection-peg 1, finishes quick connection, with oil pipe/drilling rod expansion tube is transported to precalculated position (referring to Fig. 1).
Then, in oil pipe/drilling rod, drop into plug 19(referring to accompanying drawing 4), pumping liquid promotes plug 19 and moves downward, and sits on (referring to Fig. 2) on the limited block 13 up to plug 19, forms a closed chamber in the oil pipe/drilling rod on plug 19 tops; When continuing pumping liquid, rising along with oil pipe or drilling rod internal pressure, fluid pressure imports hydraulic cylinder into by the radial direction through hole 20 on the central tube 4, promote cylinder barrel 5 and move downward, and then moved down by cylinder barrel 5 promotion linings 9, expansion-head 10, black box 11, adapter sleeve 12, epivalve body 15 relative central tubes 4; Epivalve body 15 and hypovalve body 16 are pegged graft mutually, and their outer profile sizes on radial direction progressively increase, and the expansion tube that swells.When being plugged into certain position, their maximum outside diameter reaches the size of expectation, the complete circumference of track formation rule that contacts with expansion tube; The locking of the pawl gingival cyst of mucous gland in the newborn of the pawl gingival cyst of mucous gland in the newborn of retaining ring 14 and central tube 4 relevant positions engagement at this moment, epivalve body 15 no longer relatively moves with hypovalve body 16, and the shape and size of reducing expansion-head remain unchanged; Limited block 13 is positioned at annular groove 21 places of adapter sleeve 12.
Continuation is injected liquid in oil pipe/drilling rod, radially outwards mobile at the promotion lower position block 13 of plug 19, enters in the annular groove 21 of adapter sleeve 12 constraint that limited block 13 is removed plug 19; Plug 19 continues to move down, and is unimpeded in oil pipe/drilling rod, central tube 4 inside and outside be communicated with (referring to Fig. 3).Subsequently, fluid pressure passes to the annular space between central tube 4 and the expansion tube, acts on the black box 11, the thrust of making progress for sizing expansion-head 10, add that the well head hook upwards lifts oil pipe/drilling rod tubing string, the twin-stage expansion gear is moved upward, realize the double expansion to expansion tube.
The utility model expansion tube twin-stage expansion gear is by sizing expansion-head and the combination of reducing expansion-head, at the maximum outside diameter of its expansion tube with when using the expansion tube maximum outside diameter of single sizing expansion-head identical, expansion tube can obtain bigger expansion rate, realized that expansion tube is by less sleeve pipe or the well of top latus rectum, the sleeve pipe of the big latus rectum in bottom is subsidized or carry out the expansion tube completion in the well of big latus rectum, and the expansion tube internal diameter rounding rule after expanding, assurance reaches predetermined diameter dimension, for follow-up construction operation provides good wellbore conditions.
It should be noted that above-described embodiment is example and unrestricted the utility model, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (6)
1. expansion tube twin-stage expansion gear, comprise expansion tube, sizing expansion-head, reducing expansion-head, hydraulic cylinder, expansion tube is made up of the expansion tube body on top and the bay of bottom, the bay internal diameter is greater than the internal diameter of expansion tube body, and expansion tube body and bay are by inclined-plane and arc surface transition; Reducing expansion-head, sizing expansion-head are positioned at bay, and the sizing expansion-head is positioned at the top of reducing expansion-head, and the maximum outside diameter of sizing expansion-head is identical with the internal diameter of bay, it is characterized in that:
Be coaxially installed with central tube (4) in the described expansion tube, the annular space between central tube (4) and the expansion tube is equipped with grafting assembly, hydraulic cylinder assembly, sizing expansion-head assembly, controlling organization, reducing expansion-head assembly from top to bottom successively;
The epivalve body (15) of reducing expansion-head assembly, hypovalve body (16), lobe body seat (17) are from top to bottom installed successively; The outer lug boss of epivalve body (15) upper end is installed in the groove of coupling sleeve (12) lower end endoporus; The outer lug boss of hypovalve body (16) lower end is installed in the groove of lobe body seat (17) upper end endoporus;
There is radial direction through hole (20) hydraulic cylinder assembly piston (6) below of described central tube (4); Between the sizing expansion-head assembly of central tube (4) and the reducing expansion-head assembly limited block (13) is installed radially, a distal process of limited block (13) is for the endoporus of central tube (4).
2. according to the described expansion tube twin-stage of claim 1 expansion gear, it is characterized in that:
The epivalve body (15) of described reducing expansion-head assembly, the lobe number of hypovalve body (16) are respectively more than 2 or 2, and quantity equates; Epivalve body (15) is staggered along the circle spacing with hypovalve body (16), and the cross section of composition is annular;
The original state of described expansion tube twin-stage expansion gear assembling, epivalve body (15) be the axial distance during greater than reducing expansion-head epivalve body (15), hypovalve body (16) combination net shape with hypovalve body (16) axial distance;
The reducing expansion-head upper end of the epivalve body (15) of described reducing expansion-head assembly, hypovalve body (16) combination back net shape is up big and down small Rotary-table for up-small and down-big Rotary-table, lower end; The big end of 2 Rotary-tables is measure-alike, by the arc surface transition; The reducing expansion-head endoporus top of described epivalve body (15), hypovalve body (16) combination back net shape is up-small and down-big round platform hole, and the bottom is up big and down small round platform hole;
The cross section of described epivalve body (15) from top to bottom narrows down gradually, and the cross section of hypovalve body (16) from top to bottom broadens gradually; The epivalve body (15) of combination back net shape reducing expansion-head and the contact surface curve of hypovalve body (16) are continuous trapezoidal arrangement at periphery, and epivalve body (15) equates with the radial dimension of hypovalve body (16) contact surface on same cross section;
The original state of described expansion tube twin-stage expansion gear assembling, epivalve body (15) lower end and hypovalve body (16) upper end tilt to central tube (4) respectively, and the outside dimension of reducing expansion-head is less than the internal diameter size of bay (18).
3. according to the described expansion tube twin-stage of claim 2 expansion gear, it is characterized in that:
Fixedly connected with central tube (4) upper end in the top connection of described grafting assembly (3) lower end; In the annular groove of top connection (3) upper end endoporus lock ring (2) is installed, connection-peg (1) bottom is inserted and is matched fixedly connected with lock ring (2) in the top connection (3);
The cylinder barrel of described hydraulic cylinder assembly (5) endoporus is up big and down small shoulder hole, and cylinder barrel (5) small diameter bore is slidingly mounted on the central tube (4); The annular space middle part of cylinder barrel (5) large diameter hole and central tube (4) is equipped with piston (6); The lock dog of installing in the radially lock dog groove of piston (6) (7) inserts the interior fixed piston (6) of cannelure of central tube (4) relevant position; Radial direction through hole (20) on piston (6) the below central tube (4) communicates with the annular space of cylinder barrel (5);
The lining (9) of described sizing expansion-head assembly is slidingly mounted on the central tube (4), and lining (9) is up big and down small multidiameter, and sizing expansion-head (10), black box (11) are installed on the pilot pin of lining (9) from top to bottom successively; Lining (9) lower end is installed with adapter sleeve (12);
The endoporus of described adapter sleeve (12) is the shoulder hole that the middle part is little, two ends are big, and minor diameter endoporus and upper end larger diameter internal bore intermediate zone are annular groove (21), and the limited block of described controlling organization (13) is positioned at the below of annular groove (21); In the cannelure of adapter sleeve (12) middle part minor diameter endoporus retaining ring (14) is installed.
4. according to the described expansion tube twin-stage of claim 3 expansion gear, it is characterized in that: the quantity of described hydraulic cylinder assembly is more than 2 or 2.
5. according to the described expansion tube twin-stage of claim 4 expansion gear, it is characterized in that:
Described lock ring (2) is split ring, and lock ring (2) endoporus is pawl gingival cyst of mucous gland in the newborn structure, and the pawl gingival cyst of mucous gland in the newborn structure that matches with lock ring (2) endoporus pawl gingival cyst of mucous gland in the newborn is arranged on connection-peg (1) excircle;
Described retaining ring (14) is split ring, and retaining ring (14) endoporus is pawl gingival cyst of mucous gland in the newborn structure.
6. according to any described expansion tube twin-stage expansion gear of claim 2-5, it is characterized in that: by in central tube (4), dropping into plug (19), plug (19) is sitting on the limited block (13), inject liquid in the central tube (4) and build the pressure, the cylinder barrel of hydraulic cylinder assembly (5) is to lower slider under pressure, the epivalve body (15) that sizing expansion-head assembly, adapter sleeve (12) drive reducing expansion-head assembly along central tube (4) to lower slider;
In the limited block (13) on the described central tube (4) enters the annular groove (21) of adapter sleeve (12), be installed in the pinning that is meshed with central tube (4) the excircle upper inverted tooth gingival cyst of mucous gland in the newborn of correspondence position of retaining ring (14) on the adapter sleeve (12), the epivalve body (15) of reducing expansion-head assembly and hypovalve body (16) are combined as the reducing expansion-head of net shape, and the geomery of reducing expansion-head is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086427 CN203175447U (en) | 2013-02-26 | 2013-02-26 | Expansion pipe twin-stage expansion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086427 CN203175447U (en) | 2013-02-26 | 2013-02-26 | Expansion pipe twin-stage expansion device |
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| CN203175447U true CN203175447U (en) | 2013-09-04 |
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| CN 201320086427 Expired - Lifetime CN203175447U (en) | 2013-02-26 | 2013-02-26 | Expansion pipe twin-stage expansion device |
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| CN103867155A (en) * | 2014-04-04 | 2014-06-18 | 华鼎鸿基石油工程技术(北京)有限公司 | Expansion pipe |
| CN104005725A (en) * | 2013-02-26 | 2014-08-27 | 天津大港油田钻采技术开发公司 | Expansion pipe two-stage expansion device |
| CN104612614A (en) * | 2013-11-05 | 2015-05-13 | 天津大港油田钻采技术开发公司 | Arc-shaped reducing expansion device for expansion pipe |
| CN105484695A (en) * | 2015-12-30 | 2016-04-13 | 中国石油天然气集团公司 | Mechanical hydraulic double-acting expansion device suitable for expansion tube drilling |
| RU2645060C1 (en) * | 2017-05-25 | 2018-02-15 | Общество с ограниченной ответственностью "Научно-производственное предприятие "РостТех"" | Device for repair of casing and production strings with help of double cone-transformer |
| WO2021026749A1 (en) * | 2019-08-12 | 2021-02-18 | 屈波 | Compound lining apparatus for pipeline |
| CN114837601A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气集团有限公司 | Expansion pipe tool system and emergency treatment method for plugging expansion pipe open hole well |
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2013
- 2013-02-26 CN CN 201320086427 patent/CN203175447U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005725A (en) * | 2013-02-26 | 2014-08-27 | 天津大港油田钻采技术开发公司 | Expansion pipe two-stage expansion device |
| CN104005725B (en) * | 2013-02-26 | 2016-12-28 | 天津大港油田钻采技术开发公司 | Expansion tube twin-stage expansion gear |
| CN104612614A (en) * | 2013-11-05 | 2015-05-13 | 天津大港油田钻采技术开发公司 | Arc-shaped reducing expansion device for expansion pipe |
| CN104612614B (en) * | 2013-11-05 | 2017-10-24 | 天津大港油田钻采技术开发公司 | Expansion tube arc variable-diameter expansion device |
| CN103742092A (en) * | 2013-12-31 | 2014-04-23 | 中国石油天然气股份有限公司 | Expansion pipe completing tool |
| CN103867155A (en) * | 2014-04-04 | 2014-06-18 | 华鼎鸿基石油工程技术(北京)有限公司 | Expansion pipe |
| WO2017114149A1 (en) * | 2015-12-30 | 2017-07-06 | 中国石油天然气集团公司 | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| CN105484695A (en) * | 2015-12-30 | 2016-04-13 | 中国石油天然气集团公司 | Mechanical hydraulic double-acting expansion device suitable for expansion tube drilling |
| CN105484695B (en) * | 2015-12-30 | 2018-10-16 | 中国石油天然气集团公司 | Mechanical and hydraulic double-acting expansion device suitable for expansion tube drilling well |
| US10641067B2 (en) | 2015-12-30 | 2020-05-05 | China National Petroleum Corporation | Mechanical and hydraulic dual-effect expansion device for well drilling with expandable tubular technology |
| RU2645060C1 (en) * | 2017-05-25 | 2018-02-15 | Общество с ограниченной ответственностью "Научно-производственное предприятие "РостТех"" | Device for repair of casing and production strings with help of double cone-transformer |
| WO2021026749A1 (en) * | 2019-08-12 | 2021-02-18 | 屈波 | Compound lining apparatus for pipeline |
| CN114837601A (en) * | 2021-02-01 | 2022-08-02 | 中国石油天然气集团有限公司 | Expansion pipe tool system and emergency treatment method for plugging expansion pipe open hole well |
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Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Patentee after: Dagang Oil Field Group Co., Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. Patentee before: Dagang Oil Field Group Co., Ltd. |
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Assignee: Tianjin China Petroleum Ruisi Technology Development Co., Ltd. Assignor: Dagang Oilfield Refco Group Ltd|Tianjin Dagang Oilfield Petroleum Engineering Research Institute drilling Technology Development Company Contract record no.: 2015120000030 Denomination of utility model: Expansion pipe two-stage expansion device Granted publication date: 20130904 License type: Exclusive License Record date: 20150529 |
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