CN205289503U - Casing expander in well - Google Patents
Casing expander in well Download PDFInfo
- Publication number
- CN205289503U CN205289503U CN201521106404.5U CN201521106404U CN205289503U CN 205289503 U CN205289503 U CN 205289503U CN 201521106404 U CN201521106404 U CN 201521106404U CN 205289503 U CN205289503 U CN 205289503U
- Authority
- CN
- China
- Prior art keywords
- expansion shell
- expansion
- swelling shaft
- inner sleeve
- frustum cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007704 transition Effects 0.000 claims abstract description 3
- 230000008961 swelling Effects 0.000 claims description 52
- 230000013011 mating Effects 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 4
- 230000008439 repair process Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a sleeve pipe expander in well, including an axle that expands, the one end of axle that expands can seal with dismantling and wear to locate an expansion shell, the expansion shell includes from bottom to top can support with rotating relatively and lean on the setting, just pass through first expansion shell and the second expansion shell that the axle that expands is connected, the round platform structure of the downward convergent of diameter of axle one end is located to first expansion shell including fixed cover, and the position that lies in first expansion shell top on the axle that expands can rotate ground cover and establish second expansion shell, and the surface of second expansion shell is middle diameter big, the circular arc transition curved surface that both ends diameter is little. The utility model discloses a casing tube expander in well, the problem that the expansion ware that exists among the solution prior art does not advance the chi and blocks even when boring into the oil well pipeline, it is good to bore the nature, simple structure, convenient operation.
Description
Technical field
The utility model relates to swage technique field, relates in particular to the well inner sleeve expand tube that a kind of oil well is usedDevice.
Background technology
Tube expander is to manufacture, be used for while keeping in repair all kinds of container the inside and outside footpath of enlarged pipe, and tube-to-tube sheet connection is connectTactile position closely engages, and can not leak, leak gas and also can bear a kind of expanded joint instrument of certain pressure. Extensively suitableFor freezing, the condenser of the industry such as petrochemical industry, electric power, shipbuilding, metallurgy, cooler, heat exchanger, boiler andThe manufacture and maintenance of other pressure vessel. Tube expander can be to various materials such as copper, aluminium, titanium, iron, stainless steelsPipe carries out swollen closing.
In tube expander, have the well inner sleeve tube expander that is specifically designed to oil well, well inner sleeve tube expander is that a kind of machinery grindsPress reshaper, the distortion such as ellipse, depression necking down producing for repairing well inner sleeve, makes it to reach or just approachesThe specialist tools of the circularity of normal internal diameter, existing well inner sleeve tube expander mainly contains pyriform tube expander, pyriform expand tubeDevice is an overall structure, and its outer surface is provided with the tank of straight channel type or spiral groove type, and such tube expander is normalWhen lacking rounding off and cause piercing oil country tubular good because of its outer surface, suffered resistance is large, often occur not drilling depth,The problem of even blocking, and in repair process often because of tube expander outer surface structure problem occur cannot repair coverThe phenomenon of pipe circularity.
Thus, the inventor relies on experience and the practice of being engaged in for many years relevant industries, proposes a kind of well inner sleeve tube expander,To overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of well inner sleeve tube expander, solves exist in prior art swollenThe problem that when pipe device pierces oil country tubular good, drilling depth does not even block, piercing property is good, simple in structure, easy to operate.
The purpose of this utility model is achieved in that a kind of well inner sleeve tube expander, comprises a swelling shaft, described inOne end of swelling shaft seals removedly and is arranged in an expansion shell, and described expansion shell comprises from bottom to top can phaseTo rotationally against arranging and the first expansion shell and the second expansion shell that connect by described swelling shaft, described inThe first expansion shell comprises that fixed cover is located at the frustum cone structure of the downward convergent of diameter of described swelling shaft one end, described swollenOn axle, be positioned at the position sheathed described second expansion shell rotationally of described the first expansion shell top, described theThe outer surface of two expansion shells is the arc transition curved surface that mid diameter is large, two ends diameter is little.
In a preferred embodiments of the present utility model, on the outer wall of described frustum cone structure, be circumferentially evenly provided withMultiple swollen pearl groups.
In a preferred embodiments of the present utility model, each described swollen pearl group comprises multiple balls, described round platformOn the outer wall of structure, be circumferentially evenly provided with multiple swollen pearl mounting grooves, each described swollen pearl group is embedded at each described swollen pearlIn mounting groove, the radial outside of each swollen pearl group is provided with the swollen pearl being connected with the outer wall of described frustum cone structure and fixesFrame, the radial outside of each described ball protrudes from described frustum cone structure by open-work on described swollen pearl fixed frameOuter surface.
In a preferred embodiments of the present utility model, the bottom outer wall of described swelling shaft is provided with first stepPortion, described frustum cone structure inside is provided with the first through hole that wears described swelling shaft, described the first through-hole side wall topBe provided with the second step portion of mating with described first step portion; The bottom of described swelling shaft is provided with and is threadedHole, described frustum cone structure is fixed on the end of described swelling shaft by being arranged in connecting bolt in described threaded connection holeEnd.
In a preferred embodiments of the present utility model, the bottom of described frustum cone structure is provided with groove, described inIn groove, be embedded with the first plain washer, described connecting bolt is through described the first plain washer and described threaded connection holeConnect.
In a preferred embodiments of the present utility model, the bottom of described the second expansion shell and described round platform knotThe top of structure mutually against, the apical position that described swelling shaft is positioned at described the second expansion shell is provided with connecting threadSection, described the second expansion shell is by being sheathed on described in attaching nut in described connecting thread section is axially fixed atIn swelling shaft.
In a preferred embodiments of the present utility model, the top of described the second expansion shell is against being provided with coverBe located at the second plain washer in described swelling shaft, described attaching nut's bottom is resisted against the top of described the second plain washerEnd.
In a preferred embodiments of the present utility model, the inside of described the second expansion shell is provided with second and leads toHole, the inside that is positioned at described the second through hole in described swelling shaft is provided with the columniform boss that diameter increases, described inBetween the inwall of the outer wall of boss and described the second through hole, be formed with running clearance, the top of described boss is against establishingBe equipped with the first thrust bearing being sheathed in described swelling shaft, the bottom of described boss is against described in being provided with and being sheathed onThe second thrust bearing in swelling shaft, institute is fixed in the outer ring of described the first thrust bearing and described the second thrust bearingState on the inwall of the second through hole.
In a preferred embodiments of the present utility model, the top of described the second expansion shell and described second flatBetween the bottom of packing ring, be provided with can realize described the second expansion shell with respect to described second plain washer rotateThe first roll structure; Between described second bottom of expansion shell and the top of described frustum cone structure, being provided with can be realThe second roll structure that existing described the second expansion shell rotates with respect to described frustum cone structure.
In a preferred embodiments of the present utility model, described attaching nut is tetragonal nut.
From the above mentioned, the well inner sleeve tube expander that the utility model provides, by arranging on the first expansion shellSwollen pearl group, ensures that well inner sleeve tube expander bottom sides is level and smooth and regular, has effectively reduced while piercing inside pipe casingResistance, can pierce smoothly arrival deformation place; Swelling shaft two ends and the first expansion shell and the second expansion shellConnecting portion between be provided with plain washer, can prevent from getting loose and dispersive pressure, protection the first expansion shell andThe second expansion shell, has improved its service life; Between the first expansion shell and the second expansion shell, can dismantleConnection, can according to oil well casing internal diameter size reasonable select allotment use, applied widely, versatility is high.
Brief description of the drawings
The following drawings is only intended to the utility model to schematically illustrate and explain, does not limit the utility modelScope. Wherein:
Fig. 1: be the structural representation of well inner sleeve tube expander of the present utility model.
Fig. 2: be the upward view of well inner sleeve tube expander of the present utility model.
Fig. 3: be attaching nut's of the present utility model schematic diagram.
Detailed description of the invention
Understand for technical characterictic of the present utility model, object and effect being had more clearly, now contrast accompanying drawingDetailed description of the invention of the present utility model is described.
As shown in Figure 1 and Figure 2, the well inner sleeve tube expander 100 that the utility model provides, comprises a swelling shaft 1,One end (bottom shown in Fig. 1) of swelling shaft 1 seals and is arranged in an expansion shell 2 removedly, expandsShell 2 comprises from bottom to top can be mutually rotationally against the first expansion shell that arranges and connect by swelling shaft 121 and second expansion shell 22, the first expansion shells 21 to comprise that fixed cover is located at the diameter of swelling shaft 1 one end downwardThe frustum cone structure 211 of convergent, in swelling shaft 1, being positioned at the position of the first expansion shell 21 tops can be rotationally sheathedThe outer surface of two expansion shell 22, the second expansion shells 22 is the circular arc mistake that mid diameter is large, two ends diameter is littleCross curved surface. The connection that can dismantle by swelling shaft 1 between the first expansion shell 21 and the second expansion shell 22,Can select allotment to use according to oil well casing (prior art, not shown) internal diameter size reasonable, be suitable forScope is wide, and versatility is high.
Further, as shown in Figure 2, on the outer wall of frustum cone structure 211, be circumferentially evenly provided with multiple swollen pearl groups 212,Swollen pearl group 212 comprises multiple balls 2121, in the present embodiment, circumferentially equal on the outer wall of frustum cone structure 211Evenly be provided with swollen pearl mounting groove 2114, swollen pearl group 212 is embedded in swollen pearl mounting groove 2114, swollen pearl group 212Radial outside be provided with the swollen pearl fixed frame 2115 being connected with the outer wall of frustum cone structure 211, each ball 2121Radial outside protrude from the outer surface of frustum cone structure 211 by the open-work 21151 on swollen pearl fixed frame 2115.Swollen pearl group 212 can ensure that well inner sleeve tube expander bottom sides is level and smooth and regular, has effectively reduced and has pierced in sleeve pipeResistance when portion, can pierce arrival deformation place smoothly.
Further, as shown in Figure 1, the bottom outer wall of swelling shaft 1 is provided with first step portion 11, frustum cone structure211 inside be provided with the first through hole 2111, the first through hole 2111 side wall upper part that wear swelling shaft 1 be provided withThe second step portion 2112 that first step portion 11 mates; The bottom of swelling shaft 1 is provided with threaded connection hole 12, circlePlatform structure 211 is fixed on the bottom of swelling shaft 1 by being arranged in connecting bolt 3 in threaded connection hole 12. TheTwo stage portion 2112 and first step portion 11 are fixedly connected on frustum cone structure 211 against, connecting bolt 3 mutuallyBottom is fixedly connected in swelling shaft 1 the first expansion shell 21.
Further, as shown in Figure 1 and Figure 2, the bottom of frustum cone structure 211 is provided with groove 2113, groove 2113In be embedded with the first plain washer 4, connecting bolt 3 is connected with threaded connection hole 12 through the first plain washer 4. TheOne plain washer 4 is embedded in groove 2113, can prevent that the first expansion shell 21 from getting loose and reducing frustum cone structureThe compression of 211 bottom pressure-bearing surface, the bottom end face of protection frustum cone structure 211. In the present embodiment,Connecting bolt 3 is hex bolts.
Further, as shown in Figure 1, the top of the bottom of the second expansion shell 22 and frustum cone structure 211 is mutualAgainst, the apical position that swelling shaft 1 is positioned at the second expansion shell 22 is provided with 13, the second expansions of connecting thread sectionShell 22 is axially fixed in swelling shaft 1 by the attaching nut 5 who is sheathed in connecting thread section 13.
Further, as shown in Figure 1, Figure 3, the top of the second expansion shell 22 is sheathed on swelling shaft against being provided withThe second plain washer 6 on 1, attaching nut 5 bottom is resisted against the top of the second plain washer 6. The second plain cushionCircle is 6 against being arranged between the top and attaching nut 5 of the second expansion shell 22, can reduce pressure-bearing surfaceCompression, while preventing that the suffered active force in top because of swelling shaft 1 is larger, the second expansion shell 22 gets loose, protection theThe outer surface of two expansion shells 22. In the present embodiment, attaching nut 5 is tetragonal nut.
Further, as shown in Figure 1, the inside of the second expansion shell 22 is provided with the second through hole 221, swelling shaft 1On be positioned at the second through hole 221 inside be provided with the columniform boss 14 that diameter increases, the outer wall of boss 14And between the inwall of the second through hole 221, be formed with running clearance, the top of boss 14 is sheathed on against being provided withThe first thrust bearing 15 in swelling shaft 1, the bottom of boss 14 is sheathed on second in swelling shaft 1 against being provided withThe second through hole 221 is fixed in the outer ring of thrust bearing 16, the first thrust bearings 15 and the second thrust bearing 16Inwall on.
Further, as shown in Figure 1, between the top of the second expansion shell 22 and the bottom of the second plain washer 6Be provided with and can realize the first roll structure 222 that the second expansion shell 22 rotates with respect to the second plain washer 6; TheBetween the top of the bottom of two expansion shells 22 and frustum cone structure 211, be provided with and can realize the second expansion shell 22The second roll structure 223 rotating with respect to frustum cone structure 211. In use procedure, 1 of swelling shaft is done axially and is movedMove and do not rotate, the first thrust bearing 15, the second thrust bearing 16, the first roll structure 222, the second ball knotStructure 223 can be realized the second expansion shell 22 and rotate with respect to swelling shaft 1, when well inner sleeve tube expander 100 toUnder pierce in sleeve pipe process, when being subject to the resistance of internal surface of sleeve pipe, the second expansion shell 22 can rotate to be kept awayExempt from surface tear, make circularity in sleeve pipe increase simultaneously, promote repair rate.
Well inner sleeve tube expander 100 of the present utility model in use, is first transferred to well inner sleeve and is becomeShape position, the swollen pearl group 212 being positioned in decentralization process on the first expansion shell 21 of bottom can ensure well inner sleeveTube expander 100 bottom sides are level and smooth and regular, effectively reduced the resistance while piercing inside pipe casing, can be smoothPierce arrival deformation place. Arrive after deformation place, the top of swelling shaft 1 is subject to the downward impact that ground appliesPower (prior art is realized by gravity or the bumper sub of drilling rod itself), this active force is by swollen well inner sleevePipe device 100 advances downwards, and casing deformation portion squeezes under swollen effect at well inner sleeve tube expander 100, recovers logical in itFootpath size.
From the above mentioned, the well inner sleeve tube expander that the utility model provides, by arranging on the first expansion shellSwollen pearl group, ensures that well inner sleeve tube expander bottom sides is level and smooth and regular, has effectively reduced while piercing inside pipe casingResistance, can pierce smoothly arrival deformation place; Swelling shaft two ends and the first expansion shell and the second expansion shellConnecting portion between be provided with plain washer, can prevent from getting loose and dispersive pressure, protection the first expansion shell andThe second expansion shell, has improved its service life; Between the first expansion shell and the second expansion shell, can dismantleConnection, can according to oil well casing internal diameter size reasonable select allotment use, applied widely, versatility is high.
The foregoing is only the schematic detailed description of the invention of the utility model, not in order to limit the utility modelScope. Any those skilled in the art, institute under the prerequisite that does not depart from design of the present utility model and principleThe equivalent variations of making and amendment, all should belong to the scope that the utility model is protected.
Claims (10)
1. a well inner sleeve tube expander, is characterized in that: comprise a swelling shaft, one end of described swelling shaft can be torn openUnload to seal and be arranged in an expansion shell, described expansion shell comprises from bottom to top can be in relative rotation against establishingThe first expansion shell of putting and connect by described swelling shaft and the second expansion shell, described the first expansion shell bagDraw together fixed cover and be located at the frustum cone structure of the downward convergent of diameter of described swelling shaft one end, in described swelling shaft, be positioned at describedThe position sheathed described second expansion shell rotationally of one expansion shell top, outside described the second expansion shellSurface is the arc transition curved surface that mid diameter is large, two ends diameter is little.
2. well inner sleeve tube expander as claimed in claim 1, is characterized in that: outside described frustum cone structureOn wall, be circumferentially evenly provided with multiple swollen pearl groups.
3. well inner sleeve tube expander as claimed in claim 2, is characterized in that: each described swollen pearl group comprisesMultiple balls, are circumferentially evenly provided with multiple swollen pearl mounting grooves on the outer wall of described frustum cone structure, each described swollen pearlGroup is embedded in each described swollen pearl mounting groove, the radial outside of each swollen pearl group be provided with described frustum cone structure outsideThe swollen pearl fixed frame that wall connects, the radial outside of each described ball is outstanding by the open-work on described swollen pearl fixed frameIn the outer surface of described frustum cone structure.
4. well inner sleeve tube expander as claimed in claim 1, is characterized in that: outside the bottom of described swelling shaftWall is provided with first step portion, and described frustum cone structure inside is provided with the first through hole that wears described swelling shaft, described inThe first through-hole side wall top is provided with the second step portion of mating with described first step portion; The bottom of described swelling shaftBe provided with threaded connection hole, described frustum cone structure is fixed by the connecting bolt being arranged in described threaded connection holeIn the bottom of described swelling shaft.
5. well inner sleeve tube expander as claimed in claim 4, is characterized in that: the end of described frustum cone structureEnd is provided with groove, is embedded with the first plain washer in described groove, and described connecting bolt is through described the first plain cushionCircle is connected with described threaded connection hole.
6. well inner sleeve tube expander as claimed in claim 1, is characterized in that: described the second expansion shellBottom and the top of described frustum cone structure mutually against, described swelling shaft is positioned at the top of described the second expansion shellPosition is provided with connecting thread section, and described the second expansion shell is by being sheathed on the connection in described connecting thread sectionNut is axially fixed in described swelling shaft.
7. well inner sleeve tube expander as claimed in claim 6, is characterized in that: described the second expansion shellTop against being provided with the second plain washer being sheathed in described swelling shaft, described attaching nut's bottom is resisted againstThe top of described the second plain washer.
8. well inner sleeve tube expander as claimed in claim 1, is characterized in that: described the second expansion shellInside be provided with the second through hole, the inside that is positioned at described the second through hole in described swelling shaft is provided with that diameter increasesColumniform boss, is formed with running clearance, institute between the outer wall of described boss and the inwall of described the second through holeState the top of boss against being provided with the first thrust bearing being sheathed in described swelling shaft, the bottom of described boss is supportedBy being provided with the second thrust bearing being sheathed in described swelling shaft, described the first thrust bearing and described the second thrustThe outer ring of bearing is fixed on the inwall of described the second through hole.
9. well inner sleeve tube expander as claimed in claim 7, is characterized in that: described the second expansion shellTop and the bottom of described the second plain washer between be provided with and can realize described the second expansion shell with respect to instituteState the first roll structure that the second plain washer rotates; The bottom of described the second expansion shell and described frustum cone structureBetween top, be provided with and can realize the second ball that described the second expansion shell rotates with respect to described frustum cone structureStructure.
10. well inner sleeve tube expander as claimed in claim 6, is characterized in that: described attaching nut is fourAngle nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106404.5U CN205289503U (en) | 2015-12-28 | 2015-12-28 | Casing expander in well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521106404.5U CN205289503U (en) | 2015-12-28 | 2015-12-28 | Casing expander in well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205289503U true CN205289503U (en) | 2016-06-08 |
Family
ID=56472979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521106404.5U Active CN205289503U (en) | 2015-12-28 | 2015-12-28 | Casing expander in well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205289503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262615A (en) * | 2017-07-28 | 2017-10-20 | 中山庆琏金属制品有限公司 | A kind of pipe expander |
-
2015
- 2015-12-28 CN CN201521106404.5U patent/CN205289503U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262615A (en) * | 2017-07-28 | 2017-10-20 | 中山庆琏金属制品有限公司 | A kind of pipe expander |
| CN107262615B (en) * | 2017-07-28 | 2024-04-05 | 中山庆琏金属制品有限公司 | Pipe expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |