CN203547623U - Diameter-slightly-changeable expansion tool - Google Patents
Diameter-slightly-changeable expansion tool Download PDFInfo
- Publication number
- CN203547623U CN203547623U CN201320724659.2U CN201320724659U CN203547623U CN 203547623 U CN203547623 U CN 203547623U CN 201320724659 U CN201320724659 U CN 201320724659U CN 203547623 U CN203547623 U CN 203547623U
- Authority
- CN
- China
- Prior art keywords
- expansion
- expanding block
- cylinder
- expander
- blocks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000004429 Calibre Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 3
- 230000011218 segmentation Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a diameter-slightly-changeable expansion tool which is used in the drilling industry. The expansion tool is composed of an expansion body, expansion blocks, a block frame, a clamping ring, a nut and a pin. The expansion body is sequentially composed of a cylindrical body, a conical body and a cylindrical body from top to bottom, the number of the expansion blocks is six, the expansion blocks are evenly distributed around the conical body in the circumferential direction in a wrapping mode, the intervals between the expansion blocks are two millimeters to four millimeters, the lower portions of the expansion blocks are installed on the block frame through connecting pins respectively, the clamping ring is arranged on the outer periphery of the lower portions of the expansion blocks in a sleeved mode, the block frame is fixed to the lower portion of the clamping ring, spring pieces are arranged between the cylinder on the lower portion of the expansion body and the expansion blocks, the spring pieces tightly jack the expansion blocks and slight diameter changing of the expansion blocks is realized through compression and release of the spring pieces. The nut is installed at the bottom of the expansion body and the expansion blocks can slide upwards within the range of 5-8 mm and downwards within the range of 5-8 mm.
Description
Technical field
This use is novel relates to a kind of bloat tool for oil and gas well drilling operation, completion practice and later stage workover treatment, particularly realizes the small variable radial expansion tool that tubing segmentation is expanded.
Background technology
Along with the increase to oil demand, oil unit, for how shortening drilling time, increases output, reduces costs and has higher requirement, the research of being also correlated with in recent years.Utilize bulged tube technology Optimize Casing Program, packing water layer, sand control volume increase, casing repairings etc. are one of correlative study just, but the previous larger difficult problem of order is exactly the long section sleeve pipe that how to expand, after having expanded, how to realize good sealing? key is sealing problem after threaded expander and the strength problem of expansion rear thread.Entity cone expands can provide good expansion force, and swell increment and dilatancy also can well be guaranteed, but can not expand by reducing, can not segmentation expand.Hydraulic rolling expands and can not well be guaranteed in swell increment and dilatancy, and high hydraulic packing is also a problem, and old reducing expansion cone has good control to swell increment and dilatancy, but difficulty of processing is large.
Summary of the invention
The purpose of this utility model is to provide a kind of small variable radial expansion tool, and it is simple in structure, can realize steady expansion, larger expansion force, swell increment can be provided again, dilatancy also can well be guaranteed, can also realize segmentation and expand, and production and processing is simpler.
The purpose of this utility model is to realize like this, a kind of small variable radial expansion tool, by expander, expanding block, piece frame, collar, nut, pin six part compositions, expander is from top to bottom successively by cylinder, cone, cylinder composition, expanding block is six and is to be circumferentially uniformly distributed and is coated on around cone, interval 2-4mm between expanding block, expanding block bottom is arranged on piece frame by connecting pin respectively, collar is sleeved in the outer peripheral edges of expanding block bottom, piece frame is fixed on the bottom of collar, between the cylinder of expander bottom and expanding block, spring leaf is being set, spring leaf stretching expanding block, by the compression to spring leaf and release, realize the small reducing of expanding block, nut is arranged on expander bottom, expanding block has slided up and down 5-8mm sliding distance.
The utility model bloat tool is collapsible reducing, the segmentation that has realized tubing is expanded.Realize hydraulic pressure and mechanokinetic double insurance, if one is short of power, can use another kind of power by way of compensation.The cone surface of this bloat tool is comprised of the positive conical surface, inverted cone surface and gauge cylinder, adopts arc transition, be conducive to improve stressed, the overall mechanical characteristic of italic Structure Improvement instrument that expanding block adopts.This bloat tool is simple in structure, and instrument itself does not relate to hydraulic packing problem, and entity pipe and screen casing are mainly used in expanding.Than old reducing expansion cone, be easier to processing and manufacturing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is main TV structure schematic diagram of the present utility model.
The specific embodiment
A kind of small variable radial expansion tool, as shown in Figure 1, by expander 1, expanding block 2, piece frame 5, collar 4, nut 7, pin 6 six part compositions, expander 1 is from top to bottom successively by cylinder, cone, cylinder composition, expanding block 2 is six and is to be circumferentially uniformly distributed and is coated on around cone, interval 2-4mm between expanding block 2, expanding block 2 bottoms are arranged on piece frame 5 by connecting pin 6 respectively, collar 4 is sleeved in the outer peripheral edges of expanding block 2 bottoms, piece frame 5 is fixed on the bottom of collar 4, between the cylinder of expander 1 bottom and expanding block 2, spring leaf 3 is being set, spring leaf 3 stretching expanding blocks 2, by the compression to spring leaf 3 and release, realize the small reducing of expanding block 2, nut 7 is arranged on expander bottom, expanding block 2 has slided up and down 5-8mm sliding distance.
Said cone outer peripheral face is comprised of the positive conical surface, calibre circle cylinder and inverted cone surface from top to bottom successively, between the positive conical surface and calibre circle cylinder, is the asymptotic fillet surface of double camber, between inverted cone surface and calibre circle cylinder, is arc transition curved surface.The positive conical surface is responsible for main expansion task, and gauge cylinder mainly plays gauge, and inverted cone surface is mainly responsible for brief inverse expansion job task.
Claims (2)
1. a small variable radial expansion tool, by expander, expanding block, piece frame, collar, nut, pin six part compositions, it is characterized in that: expander is from top to bottom successively by cylinder, cone, cylinder composition, expanding block is six and is to be circumferentially uniformly distributed and is coated on around cone, interval 2-4mm between expanding block, expanding block bottom is arranged on piece frame by connecting pin respectively, collar is sleeved in the outer peripheral edges of expanding block bottom, piece frame is fixed on the bottom of collar, between the cylinder of expander bottom and expanding block, spring leaf is being set, spring leaf stretching expanding block, by the compression to spring leaf and release, realize the small reducing of expanding block, nut is arranged on expander bottom, expanding block has slided up and down 5-8mm sliding distance.
2. small variable radial expansion tool according to claim 1, it is characterized in that: said cone outer peripheral face is comprised of the positive conical surface, calibre circle cylinder and inverted cone surface from top to bottom successively, between the positive conical surface and calibre circle cylinder, being the asymptotic fillet surface of double camber, is arc transition curved surface between inverted cone surface and calibre circle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724659.2U CN203547623U (en) | 2013-11-15 | 2013-11-15 | Diameter-slightly-changeable expansion tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724659.2U CN203547623U (en) | 2013-11-15 | 2013-11-15 | Diameter-slightly-changeable expansion tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203547623U true CN203547623U (en) | 2014-04-16 |
Family
ID=50465752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724659.2U Expired - Lifetime CN203547623U (en) | 2013-11-15 | 2013-11-15 | Diameter-slightly-changeable expansion tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203547623U (en) |
-
2013
- 2013-11-15 CN CN201320724659.2U patent/CN203547623U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205147365U (en) | Frock clamp of processing sphere | |
| CN205309368U (en) | Thin wall ring trimming device | |
| CN202667468U (en) | Hydraulic steel tube expanding machine | |
| CN203547623U (en) | Diameter-slightly-changeable expansion tool | |
| CN203390234U (en) | Expansion mandrel | |
| CN203401452U (en) | Air compressor piston installer | |
| CN203610938U (en) | Connecting tube multi-dimensional pressure point mechanism | |
| CN104439011B (en) | A kind of oil drill rocker upset end forming terrace die and application thereof | |
| CN204122580U (en) | The mould holder covering device of fast changeable drift | |
| CN202910202U (en) | Tubing hole enlargement device | |
| CN201141289Y (en) | Novel radius-variable expansion tool | |
| CN211287585U (en) | Hydraulic shaping device | |
| CN205684753U (en) | A kind of body end surface Vehicle Processing hydraulically operated fixture | |
| CN204314156U (en) | Pipe fitting low-pressure water compression testing device | |
| CN104475792A (en) | Centrifugal ball clamping fixture | |
| CN204523820U (en) | The rotating fixed extrusion pillow of the extrusion machine of a kind of card | |
| CN203051413U (en) | Sealing bolt | |
| CN204177527U (en) | The airtight plugging mechanism of a kind of pneumatic interior expansion | |
| CN205414177U (en) | Screw tube expander | |
| CN203887253U (en) | Outwards-pressing-type inner expansion clamp cover | |
| CN204075269U (en) | Cylindrical workpiece fixture for processing | |
| CN203995716U (en) | Automobile instrument framework assembly | |
| CN201799533U (en) | Tool for manufacturing cone bore system of expansion cone | |
| CN202480396U (en) | Diameter-reduced two-drum capsule forming drum | |
| CN104588712A (en) | Steel ball clamping fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 834009, Tianchi South District, the Xinjiang Uygur Autonomous Region, Karamay 40-2-1 Patentee after: XINJIANG YONGSHENG ENERGY Co.,Ltd. Address before: 834009 the Xinjiang Uygur Autonomous Region Karamay City Baijiantan portal Road No. 100 Patentee before: KARAMAY TALLINN PETROLEUM ENGINEERING TECHNOLOGY SERVICES Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |