CN104632099A - Centralizer capable of prolonging service life - Google Patents
Centralizer capable of prolonging service life Download PDFInfo
- Publication number
- CN104632099A CN104632099A CN201510057383.0A CN201510057383A CN104632099A CN 104632099 A CN104632099 A CN 104632099A CN 201510057383 A CN201510057383 A CN 201510057383A CN 104632099 A CN104632099 A CN 104632099A
- Authority
- CN
- China
- Prior art keywords
- slip
- support arm
- centralizer
- fixed part
- groove
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
- E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (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 discloses a centralizer capable of prolonging the service life. The centralizer comprises an upper end, a plurality of supporting arms, a plurality of spring bows, a rear end and a connecting rod which is connected with the upper end and the rear end. The connecting rod comprises a sliding front end, a sliding middle end a, a sliding middle end b and a sliding rear end. The upper end and the sliding front end are connected, and a front baffle ring is further arranged at the connecting position of the sliding front end and the upper end. The centralizer can reduce the breakage of springs and the supporting arms, prolongs the service life, and is simple in structure and convenient to use.
Description
Technical field
The present invention relates to field of petroleum machinery, particularly, relate to the centralizer that can increase the service life.
Background technology
centralizer belongs to cementing tool, and it manufactures simple, and structure is attractive in appearance, firm and durable, and uprighting force is large, and overcoming the deficiency that sealing-off easily occurs former welded type centralizer, is a kind of centralizer that can ensure well drilling and cementing quality.Centralizer is of a great variety, can be divided into roller type, slide block type, automatic reverse formula etc. by structure.The centralizer of different structure and material, is applicable to the oil well of dissimilar eccentric wear.Use centralizer eccentric wear-proof process key technology be centralizer install position, spacing and quantity.
Existing centralizer relies on gripper shoe etc. and slows down impact, but in use rupture and come in the easy junction from gripper shoe and miscellaneous part, and make the application life of centralizer not long, righting effect is undesirable.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of centralizer that can increase the service life, this centralizer is provided with and can avoids the folding fatigue damage of latch plate in the past along with the spring bow of support arm slippage, the mode that adopts a key slippage to be communicated with between them on support arm, thus the breakage of spring and support arm can be reduced, extend the application life of centralizer.
The present invention's adopted technical scheme that solves the problem is:
The centralizer that can increase the service life, comprise upper end, multiple support arm, multiple spring bow, rear end and connect the connecting rod of upper end and rear end, described connecting rod comprises slip front end, the middle part a that slides holds, slide middle part b end, slip rear end, described upper end is connected with slip front end, and the junction of slip front end and upper end is also provided with front baffle ring;
Slip front end is connected with slip middle part a end, and the joint of slip front end and the middle part a end that slides is provided with fixed part c, and fixed part c can slide along slip front end and the middle part a end that slides; The middle part b end that slides is connected with slip rear end, and the joint of slide middle part b end and slip rear end is also provided with fixed part d, and fixed part d can slide along slip rear end and the middle part b end that slides; Multiple support arm is evenly arranged between fixed part c and fixed part d, and multiple described support arm is shaped form and middle part offers support arm groove; Also extension spring is provided with between described slip middle part a end and the middle part b that slides hold, extension spring two ends are respectively arranged with slidable termination, multiple described spring bow is arranged between termination curved, bow groove is offered in the middle part of spring bow, spring bow is connected with support arm by the slide key arranged between support arm groove and bow groove, and slide key can slippage in support arm groove or bow groove.
Design of the present invention is: be provided with on support arm and can avoid the folding fatigue damage of latch plate in the past along with the spring bow of support arm slippage, the mode that adopts a key slippage to be communicated with between them, can not only ensure that centralizer can arrange because of extension spring the impact that local external force increases suddenly when external force increases suddenly like this, the wearing and tearing of spring bow and support arm can also be reduced, thus life-extending.
Described fixed part c or fixed part d evenly offers groove, and support arm is arranged in groove.
The length of described support arm is greater than the length of spring bow.
Described fixed part c or fixed part d can slide on connecting rod.Such setting can contribute to the change that gripper shoe adapts to external force, and reply external force on the impact of centralizer, thus ensures that centralizer plays the effect of righting.
The joint of described slip front end and the middle part a end that slides also is provided with baffle ring e, and the joint of slip rear end and the middle part b end that slides also is provided with baffle ring f.
To sum up, the invention has the beneficial effects as follows:
The present invention is provided with and can avoids the folding fatigue damage of latch plate in the past along with the spring bow of support arm slippage, the mode that adopts a key slippage to be communicated with between them on support arm, thus the breakage of spring and support arm can be reduced, extend the application life of centralizer, this apparatus structure is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is invention structure chart.
Mark and corresponding component title in accompanying drawing:
1, upper end, 21, slip front end, 22, slide middle part a end, 23, slide middle part b end, 24, slip rear end, 3, rear end, 4, support arm, 41, support arm groove, 5, spring bow, 51, bow groove, 6, extension spring, 7, termination, 81, fixed part c, 82, fixed part d, 9, slide key.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, the centralizer that can increase the service life, comprise upper end 1, multiple support arm 4, multiple spring bow 5, rear end 3 and connect the connecting rod of upper end 1 and rear end 3, described connecting rod comprises slip front end 21, the middle part a that slides holds 22, slide middle part b end 23, slip rear end 24, described upper end 1 is connected with slip front end 21, and the junction of slip front end 21 and upper end 1 is also provided with front baffle ring;
Slip front end 21 is connected with slip middle part a end 22, and the joint of slip front end 21 and the middle part a end 22 that slides is provided with fixed part c81, and fixed part c81 can slide along slip front end 21 and the middle part a end 22 that slides; The middle part b end 23 that slides is connected with slip rear end 24, and the joint of slide middle part b end 23 and slip rear end 24 is also provided with fixed part d82, and fixed part d82 can slide along slip rear end 24 and the middle part b end 23 that slides; Multiple support arm 4 is evenly arranged between fixed part c81 and fixed part d82, and multiple described support arm 4 is for shaped form and middle part offers support arm groove 41; Described slip middle part a end 22 and the middle part b that slides also are provided with extension spring 6 between holding 23, extension spring 6 two ends are respectively arranged with slidable termination 7, multiple described spring bow 5 is arranged between termination 7 curved, bow groove 51 is offered in the middle part of spring bow 5, spring bow 5 is connected with support arm 4 by the slide key arranged between support arm groove 41 and bow groove 51, and slide key can slippage in support arm groove 41 or bow groove 51.
Design of the present invention is: be provided with on support arm 4 and can avoid the folding fatigue damage of latch plate in the past along with the spring bow 5 of support arm 4 slippage, the mode that adopts a key slippage to be communicated with between them, can not only ensure that centralizer can arrange because of extension spring 6 impact that local external force increases suddenly when external force increases suddenly like this, the wearing and tearing of spring bow 5 and support arm 4 can also be reduced, thus life-extending.
Described fixed part c81 or fixed part d82 evenly offers groove, and support arm 4 is arranged in groove.
The length of described support arm 4 is greater than the length of spring bow 5.
Described fixed part c81 or fixed part d82 can slide on connecting rod.Such setting can contribute to the change that gripper shoe adapts to external force, and reply external force on the impact of centralizer, thus ensures that centralizer plays the effect of righting.
The joint of described slip front end 21 and the middle part a end 22 that slides also is provided with baffle ring e, and the joint of slip rear end 24 and the middle part b end 23 that slides also is provided with baffle ring f.
As mentioned above, the present invention can be realized preferably.
Claims (5)
1. the centralizer that can increase the service life, it is characterized in that, comprise upper end (1), multiple support arm (4), multiple spring bow (5), rear end (3) and connect the connecting rod of upper end (1) and rear end (3), described connecting rod comprises slip front end (21), the middle part a that slides holds (22), the middle part b that slides holds (23), slip rear end (24), described upper end (1) is connected with slip front end (21), and the junction of slip front end (21) and upper end (1) is also provided with front baffle ring;
Slip front end (21) is connected with slip middle part a end (22), the joint at slip front end (21) and middle part a end (22) of sliding is provided with fixed part c(81), fixed part c(81) can slide along slip front end (21) and middle part a end (22) of sliding; The middle part b that slides holds (23) to be connected with slip rear end (24), the middle part b that slides holds the joint of (23) and slip rear end (24) to be also provided with fixed part d(82), fixed part d(82) can slide along slip rear end (24) and middle part b end (23) of sliding; Multiple support arm (4) is evenly arranged on fixed part c(81) and fixed part d(82) between, multiple described support arm (4) is for shaped form and middle part offers support arm groove (41); Described slip middle part a end (22) and the middle part b that slides hold between (23) and are also provided with extension spring (6), extension spring (6) two ends are respectively arranged with slidable termination (7), multiple described spring bow (5) is arranged between termination (7) curved, spring bow (5) middle part offers bow groove (51), spring bow (5) is connected with support arm (4) by the slide key arranged between support arm groove (41) and bow groove (51), and slide key can slippage in support arm groove (41) or bow groove (51).
2. the centralizer that can increase the service life according to claim 1, is characterized in that, described fixed part c(81) or fixed part d(82) on evenly offer groove, support arm (4) is arranged in groove.
3. the centralizer that can increase the service life according to claim 1, is characterized in that, the length of described support arm (4) is greater than the length of spring bow (5).
4. the centralizer that can increase the service life according to claim 1, is characterized in that, described fixed part c(81) or fixed part d(82) can slide on connecting rod.
5. the centralizer that can increase the service life according to claim 1, it is characterized in that, the joint at described slip front end (21) and middle part a end (22) of sliding also is provided with baffle ring e, and the joint at slip rear end (24) and middle part b end (23) of sliding also is provided with baffle ring f.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057383.0A CN104632099A (en) | 2015-02-04 | 2015-02-04 | Centralizer capable of prolonging service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510057383.0A CN104632099A (en) | 2015-02-04 | 2015-02-04 | Centralizer capable of prolonging service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632099A true CN104632099A (en) | 2015-05-20 |
Family
ID=53211278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510057383.0A Pending CN104632099A (en) | 2015-02-04 | 2015-02-04 | Centralizer capable of prolonging service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632099A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852383A (en) * | 2020-07-21 | 2020-10-30 | 肖云东 | Oil field downhole tool packer |
| CN112012673B (en) * | 2020-10-22 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Casing centralizer for directional well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3555689A (en) * | 1968-12-19 | 1971-01-19 | Schlumberger Technology Corp | Centralizing and well-calipering apparatus for well tools |
| CN2460720Y (en) * | 2000-09-09 | 2001-11-21 | 浙江大学 | Speed-uncreasing-type casting elastic vortex centralising device |
| CN2816329Y (en) * | 2005-07-22 | 2006-09-13 | 新疆石油管理局钻井工艺研究院 | Expnding elastic sleeve-pipe righter |
| US20090159269A1 (en) * | 2006-02-09 | 2009-06-25 | Sheiretov Todor K | Self-Anchoring Device with Force Amplification |
| CN201273154Y (en) * | 2008-09-27 | 2009-07-15 | 国营第三八八厂 | Elastic centralizer for pumping rod |
| CN204552636U (en) * | 2015-02-04 | 2015-08-12 | 成都大漠石油机械有限公司 | A kind of centralizer that can reduce frictionally damage |
-
2015
- 2015-02-04 CN CN201510057383.0A patent/CN104632099A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3555689A (en) * | 1968-12-19 | 1971-01-19 | Schlumberger Technology Corp | Centralizing and well-calipering apparatus for well tools |
| CN2460720Y (en) * | 2000-09-09 | 2001-11-21 | 浙江大学 | Speed-uncreasing-type casting elastic vortex centralising device |
| CN2816329Y (en) * | 2005-07-22 | 2006-09-13 | 新疆石油管理局钻井工艺研究院 | Expnding elastic sleeve-pipe righter |
| US20090159269A1 (en) * | 2006-02-09 | 2009-06-25 | Sheiretov Todor K | Self-Anchoring Device with Force Amplification |
| CN201273154Y (en) * | 2008-09-27 | 2009-07-15 | 国营第三八八厂 | Elastic centralizer for pumping rod |
| CN204552636U (en) * | 2015-02-04 | 2015-08-12 | 成都大漠石油机械有限公司 | A kind of centralizer that can reduce frictionally damage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852383A (en) * | 2020-07-21 | 2020-10-30 | 肖云东 | Oil field downhole tool packer |
| CN112012673B (en) * | 2020-10-22 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Casing centralizer for directional well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104632099A (en) | Centralizer capable of prolonging service life | |
| CN204552636U (en) | A kind of centralizer that can reduce frictionally damage | |
| CN104632098A (en) | Multi-arm righting device for oil exploitation | |
| CN204201392U (en) | Adjustable computer display support | |
| CN204571870U (en) | A kind of multi-armed centralizer | |
| CN107606012A (en) | A kind of new type of compression spring | |
| CN202369298U (en) | Supporting guide device, horizontal oil cylinder and landing leg assembly | |
| CN206047139U (en) | A kind of bench drill equipped with indexing means | |
| CN104493220A (en) | Chuck clamping head with changeable clamping faces | |
| CN204702323U (en) | A kind of electric wire anti-off device | |
| CN204265417U (en) | A kind of lifting movable hanging parts | |
| CN204505223U (en) | Adjustable and balancing shock bracket | |
| CN105215381A (en) | A kind of numerically controlled lathe automatic feeder | |
| CN202971789U (en) | Ball screw with automatic compensation function | |
| CN106270615A (en) | A kind of bench drill equipped with indexing means | |
| CN204365866U (en) | Two-sided riveting clamp | |
| CN203715941U (en) | Support rod provided with projective jacket | |
| CN105305103A (en) | Contact module | |
| CN205021610U (en) | A mechanical gripper for bottle blowing machine and liquid filling machine | |
| CN204052791U (en) | A kind of chain assembly machine send chain plate device | |
| CN204585049U (en) | Workpiece clamping mechanism | |
| CN204053300U (en) | The transposition mechanical arm up and down of lining automatic welding machine | |
| CN105428908A (en) | Novel data line | |
| CN204135977U (en) | For the diamond circle wrench structure of drilling tool dismounting | |
| CN205088723U (en) | Quick change accessory device of loader / forklift truck of long service life |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |
|
| RJ01 | Rejection of invention patent application after publication |