CN110080696A - A kind of novel hydropower centralizer - Google Patents
A kind of novel hydropower centralizer Download PDFInfo
- Publication number
- CN110080696A CN110080696A CN201910481516.5A CN201910481516A CN110080696A CN 110080696 A CN110080696 A CN 110080696A CN 201910481516 A CN201910481516 A CN 201910481516A CN 110080696 A CN110080696 A CN 110080696A
- Authority
- CN
- China
- Prior art keywords
- piston
- level
- outer cylinder
- stage
- mounting 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The present invention provides a kind of novel hydropower centralizers, including outer cylinder, the middle part outwardly convex of the outer cylinder and protrusion outside be equipped with mounting groove, first stage piston is installed in the mounting groove and second piston and three-level piston is successively nested and fixed in the outside of first stage piston, the first stage piston, second piston and three-level piston are telescopic piston and step type can flick under pressure, the outside of the three-level piston is equipped with the centering ring being connected and fixed with three-level piston, the inside of the outer cylinder is equipped with seal nipple, through-hole is equipped on the mounting groove and seal nipple, axis earless retaining ring is equipped between the first stage piston and second piston and between second piston and three-level piston, between the first stage piston and second piston and second piston and three-level piston are again provided with sealing ring.A kind of novel hydropower centralizer provided by the invention, structure is simple, easy to use, and positive device outer diameter is small, enters well and is easy.
Description
Technical field
The present invention relates to centralizer, in particular to a kind of novel hydropower centralizer.
Background technique
Centralizer is to belong to cementing tool, it is simple to manufacture, and structure is beautiful, and firm and durable, uprighting force is big, overcomes former welding
The deficiency of desoldering easily occurs for formula centralizer, is a kind of centralizer that can guarantee well drilling and cementing quality.In horizontal well, due to gravity
Effect, casing is biased to the lower end of wellbore, so that lower end cement sheath is very thin, even without cement sheath, this place
Cementing quality is with regard to bad.In order to improve cementing quality, traditional centralizer, as rigidity and elastic centralizer cannot all solve well
This problem certainly.
Summary of the invention
It is compact-sized the present invention provides a kind of novel hydropower centralizer for above-mentioned deficiency in the prior art, behaviour
Facilitate, centralizer outer diameter is small, enters well and is easy.
In order to achieve the above object of the invention, the technical solution adopted by the present invention are as follows:
A kind of novel hydropower centralizer, including outer cylinder, the middle part outwardly convex of the outer cylinder and protrusion outside be equipped with
Mounting groove is equipped with first stage piston in the mounting groove and second piston and three is successively nested and fixed in the outside of first stage piston
Grade piston, the first stage piston, second piston and three-level piston are telescopic piston and can be stepped under pressure
It flicks, the outside of the three-level piston is equipped with the centering ring being connected and fixed with three-level piston, and the inside of the outer cylinder is equipped with sealing
Connector is equipped with through-hole on the mounting groove and seal nipple, between the first stage piston and second piston and second piston with
Axis earless retaining ring is equipped between three-level piston, between the first stage piston and second piston and second piston and three-level piston
It is again provided with sealing ring.
As an improvement, the quantity of the mounting groove is three and annular array type arranges.
As an improvement, helicitic texture is equipped on the inside of one end of the outer cylinder, for connecting external screw-thread protection cap.
As an improvement, the middle position of the first stage piston is equipped with the counter sink for installation connecting element.
As an improvement, the outer cylinder is made of rubber material.
The invention has the benefit that
It originally is that inventive structure is simple, it is easy to use, one layer is covered by first stage piston, second piston and one layer of three-level piston
Method, when entering well centralizer righting arm compression, such centralizer outer diameter is small, enter well be easy, when under centralizer arrive well
In predetermined position, replace cement after bruising, set overpressure make righting arm stress toward external expansion, reach righting casing, improve
The effect of cementing quality, since centralizer extension outer diameter can be greater than the internal diameter of upper one layer of casing, the wellbore expanding for wellbore
Also it can achieve the effect that righting.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is outer cylinder the schematic diagram of the section structure of the invention；
Fig. 3 is cross section structure schematic diagram of the invention；
Fig. 4 is first stage piston enlarged structure schematic diagram of the invention；
Fig. 5 is second piston enlarged structure schematic diagram of the invention；
Fig. 6 is three-level piston enlarged structure schematic diagram of the invention；
Fig. 7 is centering ring front enlarged structure schematic diagram of the invention；
Fig. 8 is centering ring section enlarged structure schematic diagram of the invention；
Fig. 9 is seal joint structure schematic diagram of the invention；
Figure 10 is seal nipple the schematic diagram of the section structure of the invention；
Figure 11 is axis earless retaining ring enlarged structure schematic diagram of the invention；
The appended drawing reference table of comparisons:
1- outer cylinder, 2- mounting groove, 3- first stage piston, 4- second piston, 5- three-level piston, 6- centering ring, 7- seal nipple,
8- through-hole, 9- axis earless retaining ring, 10- helicitic texture, 11- counter sink.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.Wherein identical components are with identical
Appended drawing reference indicates.
It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
Direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
In order that the present invention can be more clearly and readily understood, following will be combined with the drawings in the embodiments of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described.
As shown in figs. 1-11,1. a kind of novel hydropower centralizer, including outer cylinder 1, which is characterized in that in the outer cylinder 1
Portion's outwardly convex and it is equipped with mounting groove 2 in the outside of protrusion, first stage piston 3 is installed in the mounting groove 2 and in first stage piston 3
Outside be successively nested and fixed second piston 4 and three-level piston 5, the first stage piston 3, second piston 4 and three-level piston 5 are equal
It for telescopic piston and step type can flick under pressure, the outside of the three-level piston 5 is equipped with to be connected with three-level piston 5
Fixed centering ring 6 is connect, the inside of the outer cylinder 1 is equipped with seal nipple 7, is equipped on the mounting groove 2 and seal nipple 7 logical
Hole 8 is equipped with axis earless retaining ring between the first stage piston 3 and second piston 4 and between second piston 4 and three-level piston 5
9, between the first stage piston 3 and second piston 4 and second piston 4 and three-level piston 5 are again provided with sealing ring.
The quantity of the mounting groove 2 is three and annular array type arranges.
Helicitic texture 10 is equipped on the inside of one end of the outer cylinder 1, for connecting external screw-thread protection cap.
The middle position of the first stage piston 3 is equipped with the counter sink 11 for installation connecting element.
The outer cylinder 1 is made of rubber material.
In the device use process, first stage piston 3, second piston 4 and three-level piston 5 are telescopic piston, and level-one is living
Plug 3 is fixed by screws in mounting groove 2, and second piston 4 and three-level piston 5 are successively socketed, in the outer cylinder 1 for being equipped with mounting groove 2
Inner wall is equipped with seal nipple 7, installs centering ring 6 in the outside of three-level piston 5, and when entering well, the righting arm of centralizer compresses
Get up, such centralizer outer diameter is small, enters well and is easy, and to predetermined position in well under centralizer, replaces bruising after cement, casing internal pressure
Power makes righting arm stress toward external expansion, reaches righting casing, improves the effect of cementing quality, and since righting arm is more, makees
Big with area, thrust is big, and pressure slightly can easily rise grip conduit saddle, reaches centralizing function.Simultaneously because centralizer
The internal diameter that outer diameter can be greater than upper one layer of casing is extended, the wellbore expanding for wellbore can also achieve the effect that righting, meanwhile, it helps
Positive device can also play the role of fixed sleeving due to righting arm insert into stratum the inside.
The above description is only a preferred embodiment of the patent of the present invention, is not intended to limit the invention patent, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the invention patent within the spirit and principle of patent of invention
Protection scope within.
Claims (5)
1. a kind of novel hydropower centralizer, including outer cylinder (1), which is characterized in that the middle part outwardly convex of the outer cylinder (1) and
The outside of protrusion is equipped with mounting groove (2), is equipped with first stage piston (3) and in the outside of first stage piston (3) in the mounting groove (2)
Second piston (4) and three-level piston (5), the first stage piston (3), second piston (4) and three-level piston is successively nested and fixed
(5) it is telescopic piston and step type can flicks under pressure, the outside of the three-level piston (5) is equipped with and three-level
The centering ring (6) that piston (5) is connected and fixed, the inside of the outer cylinder (1) are equipped with seal nipple (7), the mounting groove (2) and close
It is equipped on sealing joint (7) through-hole (8), between the first stage piston (3) and second piston (4) and second piston (4) and three-level
Axis earless retaining ring (9) is equipped between piston (5), between the first stage piston (3) and second piston (4) and second piston
(4) sealing ring is again provided with three-level piston (5).
2. a kind of novel hydropower centralizer according to claim 1, it is characterised in that: the quantity of the mounting groove (2) is
Three and annular array type arrangement.
3. a kind of novel hydropower centralizer according to claim 1, it is characterised in that: on the inside of one end of the outer cylinder (1)
Equipped with helicitic texture (10), for connecting external screw-thread protection cap.
4. a kind of novel hydropower centralizer according to claim 1, it is characterised in that: the centre of the first stage piston (3)
Position is equipped with the counter sink (11) for installation connecting element.
5. a kind of novel hydropower centralizer according to claim 1, it is characterised in that: the outer cylinder (1) is by rubber material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481516.5A CN110080696A (en) | 2019-06-04 | 2019-06-04 | A kind of novel hydropower centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481516.5A CN110080696A (en) | 2019-06-04 | 2019-06-04 | A kind of novel hydropower centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110080696A true CN110080696A (en) | 2019-08-02 |
Family
ID=67423544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910481516.5A Pending CN110080696A (en) | 2019-06-04 | 2019-06-04 | A kind of novel hydropower centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110080696A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040168794A1 (en) * | 2003-02-27 | 2004-09-02 | Weatherford/Lamb, Inc. | Spacer sub |
| CN202745731U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Hydraulic centralizer |
| CN203161114U (en) * | 2013-02-28 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Hydraulic centralizer applicable to multi-stage hydraulic jet fracturing |
| EP2663727A2 (en) * | 2011-01-13 | 2013-11-20 | Downhole Products Limited | Centraliser |
| CN203321360U (en) * | 2013-03-09 | 2013-12-04 | 长沙创远高新机械有限责任公司 | Stabilizer bar structure and raise boring machine comprising stabilizer bar structure |
| CN204082032U (en) * | 2014-09-02 | 2015-01-07 | 中国石油集团长城钻探工程有限公司 | A kind of hydroelastic system centralizer |
| CN109458142A (en) * | 2018-12-18 | 2019-03-12 | 新疆贝肯能源工程股份有限公司 | Righting connector |
| CN209369746U (en) * | 2018-12-24 | 2019-09-10 | 德州金玉石油机械科技有限公司 | A kind of waterpower centralizer |
| CN209942760U (en) * | 2019-04-29 | 2020-01-14 | 长江大学 | Hydraulic telescopic righting tool |
| CN211081741U (en) * | 2019-06-04 | 2020-07-24 | 武汉金博锐精密制造有限公司 | Novel hydraulic centralizer |
-
2019
- 2019-06-04 CN CN201910481516.5A patent/CN110080696A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040168794A1 (en) * | 2003-02-27 | 2004-09-02 | Weatherford/Lamb, Inc. | Spacer sub |
| EP2663727A2 (en) * | 2011-01-13 | 2013-11-20 | Downhole Products Limited | Centraliser |
| CN202745731U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Hydraulic centralizer |
| CN203161114U (en) * | 2013-02-28 | 2013-08-28 | 中国石油集团川庆钻探工程有限公司 | Hydraulic centralizer applicable to multi-stage hydraulic jet fracturing |
| CN203321360U (en) * | 2013-03-09 | 2013-12-04 | 长沙创远高新机械有限责任公司 | Stabilizer bar structure and raise boring machine comprising stabilizer bar structure |
| CN204082032U (en) * | 2014-09-02 | 2015-01-07 | 中国石油集团长城钻探工程有限公司 | A kind of hydroelastic system centralizer |
| CN109458142A (en) * | 2018-12-18 | 2019-03-12 | 新疆贝肯能源工程股份有限公司 | Righting connector |
| CN209369746U (en) * | 2018-12-24 | 2019-09-10 | 德州金玉石油机械科技有限公司 | A kind of waterpower centralizer |
| CN209942760U (en) * | 2019-04-29 | 2020-01-14 | 长江大学 | Hydraulic telescopic righting tool |
| CN211081741U (en) * | 2019-06-04 | 2020-07-24 | 武汉金博锐精密制造有限公司 | Novel hydraulic centralizer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190802 |
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| RJ01 | Rejection of invention patent application after publication |