CN106368636A - Hydraulic cylinder type hydraulic anchor - Google Patents
Hydraulic cylinder type hydraulic anchor Download PDFInfo
- Publication number
- CN106368636A CN106368636A CN201611000271.2A CN201611000271A CN106368636A CN 106368636 A CN106368636 A CN 106368636A CN 201611000271 A CN201611000271 A CN 201611000271A CN 106368636 A CN106368636 A CN 106368636A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- hydraulic anchor
- anchor body
- anchor
- terrace
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 241000935974 Paralichthys dentatus Species 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a hydraulic cylinder type hydraulic anchor which comprises a hydraulic anchor body, an upper joint and a lower joint, wherein the upper joint and the lower joint are spirally connected to an upper port and a lower port of the hydraulic anchor body. The hydraulic anchor body is provided with a through internal cavity, the internal diameter of the upper portion of the cavity is larger than that of the lower portion of the cavity, a prism frustum structure is formed at the diameter varying position, a sliding mandrel is inserted in the internal cavity, the upper end of the sliding mandrel is provided with another prism frustum structure which is in matched limitation with the prism frustum structure, the sliding mandrel between the two prism frustum structures is sleeved with a reset spring, a hydraulic cavity is formed between the sliding mandrel and the hydraulic anchor body, the hydraulic anchor body located within the hydraulic cavity range is provided with a through hole, and an anchor jaw is installed in the through hole. The internal cavity of the hydraulic anchor body and the hydraulic cavity are separated internally and externally through the sliding mandrel, an upper sealed combination and a lower sealed combination, wherein the upper sealed combination and the lower sealed combination are arranged at the upper end and the lower end of the sliding mandrel; and at this time even if the position of the anchor jaw of the hydraulic anchor has a sealing failure, reliable sealing can still be performed by means of the sliding mandrel.
Description
Technical field
The present invention relates to a kind of hydraulic cylinder-type hydraulic anchor.
Background technology
Conventional hydraulic anchor is mainly made up of hydraulic anchor body and multiple anchor fluke, and each anchor fluke has one o shape sealing ring
Realize sealing, any one o encloses seal failure in use, all can lead to the inside and outside connection of hydraulic anchor, bring a series of multiple
Miscellaneous problem.
Content of the invention
It is an object of the invention to proposition is a kind of has dual-seal it is ensured that sealing the hydraulic cylinder-type hydraulic anchor of effectiveness.
The object of the present invention is achieved like this: hydraulic cylinder-type hydraulic anchor includes hydraulic anchor body, and is screwed in hydraulic anchor
The upper and lower joint of the upper and lower port of body, described hydraulic anchor body has the internal cavities of an insertion, this cavity upper inner diameter
More than lower inner diameter, form terrace with edge structure at reducing, be plugged with slide cores axle in described internal cavities, on described slip mandrel
End is provided with another terrace with edge structure spacing with aforementioned terrace with edge respective outer side edges, is socketed on the slip mandrel between two terrace with edge structures
There is back-moving spring, form hydraulic cavities between described slip mandrel and hydraulic anchor body, in the hydraulic anchor in the range of hydraulic cavities
Two groups of 120 ° of equally distributed through holes are opened up on body, installing anchor fluke in through hole.
Due to carry out technique scheme, the application pass through slip mandrel and be arranged on slip mandrel upper/lower terminal upper,
Lower seal combination separates inside and outside the internal cavities of hydraulic anchor body and hydraulic cavities, even if now hydraulic anchor anchor fluke position seals are lost
Effect, still can rely on slip mandrel to realize reliably sealing.So pass through to increase slip mandrel, substantially increase the close of the application
Envelope reliability.
Brief description: technical scheme is given by following drawings and Examples:
Fig. 1 is hydraulic cylinder-type hydraulic anchor structural representation.
Legend: 1, top connection, 2, upper seal combination, 3, back-moving spring, 4, anchor fluke, 5, slip mandrel, 6, hydraulic anchor body,
7th, oil filler point, 8, lower seal combination, 9, lower contact.
Specific embodiment: the present invention is not limited by following embodiments, can technology according to the present invention scheme and reality
Situation is determining specific embodiment.
Embodiment: as shown in figure 1, hydraulic cylinder-type hydraulic anchor includes hydraulic anchor body 6, and be screwed on hydraulic anchor body 6,
Upper and lower joint 1,9 at lower port, described hydraulic anchor body 6 has the internal cavities of an insertion, and this cavity upper inner diameter is more than
Lower inner diameter, forms terrace with edge structure at reducing, is plugged with slide cores axle 5, described slip mandrel 5 upper end in described internal cavities
It is provided with another terrace with edge structure spacing with aforementioned terrace with edge respective outer side edges, the slip mandrel 5 between two terrace with edge structures is socketed
There is back-moving spring 3, form hydraulic cavities between described slip mandrel 5 and hydraulic anchor body 6, in the waterpower in the range of hydraulic cavities
Two groups of 120 ° of equally distributed through holes are opened up on anchor body 6 outer wall, installing anchor fluke 4 in through hole.
Described top connection 1 and hydraulic anchor body 6 pass through screwed connection, rely on the sealing of o shape sealing ring.
It is provided with seal combination 2 outside slip mandrel 5 upper end terrace with edge structure, on this, seal combination 2 is by three o circles and two
Individual star sealing composition.
It is provided with lower seal combination 8 in close hydraulic anchor body 6 lower port inwall, this lower seal combination 8 is enclosed by three o
With two star sealing compositions.
Described upper and lower seal combination 2,8 and slip mandrel 5, hydraulic anchor body 6 fitted seal, hydraulic cavities two ends are sealed,
During assembling, hydraulic pressure intracavity fills hydraulic oil by the oil filler point 7 being opened on hydraulic anchor body 6.
When slip mandrel 5 intrinsic pressure more than external pressure when, slip mandrel 5 produces downward piston force, compression reseting spring 3 and liquid
Force feed, hydraulic pressure intracavity hydraulic fluid pressure raises, and hydraulic oil promotes anchor fluke 4 to stretch out the grappling realizing hydraulic anchor.When in slip mandrel 5
After external pressure dynamic balance, back-moving spring 3 promotes slip mandrel 5 up, and the hydraulic fluid pressure of hydraulic pressure intracavity reduces, and anchor fluke 4 reclaims.Whole
The function of individual hydraulic cylinder-type hydraulic anchor is consistent with conventional hydraulic anchor, but sealing reliability greatly improves.
Above technical characteristic constitutes highly preferred embodiment of the present invention, and it has stronger adaptability and optimal enforcement effect
Really.
Claims (5)
1. a kind of hydraulic cylinder-type hydraulic anchor, including hydraulic anchor body, and is screwed in the upper and lower of the upper and lower port of hydraulic anchor body
Joint, described hydraulic anchor body have an insertion internal cavities it is characterised in that: this cavity upper inner diameter be more than bottom in
Footpath, at reducing formed terrace with edge structure, be plugged with slide cores axle in described internal cavities, described slip mandrel upper end be provided with
The spacing another terrace with edge structure of aforementioned terrace with edge respective outer side edges, is socketed with reset bullet on the slip mandrel between two terrace with edge structures
Spring, forms hydraulic cavities between described slip mandrel and hydraulic anchor body, is opening on the hydraulic anchor body in the range of hydraulic cavities
If through hole, installing anchor fluke in through hole.
2. a kind of hydraulic cylinder-type hydraulic anchor as claimed in claim 1 it is characterised in that: offering two groups on hydraulic anchor body is in
120 ° of equally distributed through holes.
3. a kind of hydraulic cylinder-type hydraulic anchor as claimed in claim 2 it is characterised in that: in slip mandrel upper end terrace with edge structure peripheral hardware
It is equipped with seal combination, on this, seal combination is made up of three o circles and two star sealings.
4. a kind of hydraulic cylinder-type hydraulic anchor as claimed in claim 2 or claim 3 it is characterised in that: near hydraulic anchor body lower port
It is provided with lower seal combination, this lower seal combination is made up of three o circles and two star sealings in inwall.
5. a kind of hydraulic cylinder-type hydraulic anchor as claimed in claim 4 it is characterised in that: described upper and lower seal combination and slide cores
Axle, the sealing of hydraulic anchor body fits, hydraulic cavities two ends are sealed, hydraulic pressure intracavity is by being opened in the oil filler point on hydraulic anchor body
It is marked with hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000271.2A CN106368636A (en) | 2016-11-14 | 2016-11-14 | Hydraulic cylinder type hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611000271.2A CN106368636A (en) | 2016-11-14 | 2016-11-14 | Hydraulic cylinder type hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106368636A true CN106368636A (en) | 2017-02-01 |
Family
ID=57894232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611000271.2A Pending CN106368636A (en) | 2016-11-14 | 2016-11-14 | Hydraulic cylinder type hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106368636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2743035C1 (en) * | 2020-06-10 | 2021-02-12 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Hydraulic anchor for fixing tubings in wells with rod pumps (variants) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013282Y (en) * | 2007-01-08 | 2008-01-30 | 姚向青 | Novel prevention waterpower anchor |
| CN203362083U (en) * | 2013-07-18 | 2013-12-25 | 陕西鼎和源瑞环境工程有限公司 | Sand blocking prevention hydraulic anchor for horizontal well fracturing |
| EP2749730A1 (en) * | 2009-04-02 | 2014-07-02 | Key Energy Services, Inc. | Anchor and Hydraulic Setting Assembly |
| CN205532421U (en) * | 2016-04-15 | 2016-08-31 | 陕西长兴石油科技有限公司 | Oil field borehole operation water conservancy anchor |
| CN206608127U (en) * | 2016-11-14 | 2017-11-03 | 中国石油化工股份有限公司 | Hydraulic cylinder-type hydraulic anchor |
-
2016
- 2016-11-14 CN CN201611000271.2A patent/CN106368636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201013282Y (en) * | 2007-01-08 | 2008-01-30 | 姚向青 | Novel prevention waterpower anchor |
| EP2749730A1 (en) * | 2009-04-02 | 2014-07-02 | Key Energy Services, Inc. | Anchor and Hydraulic Setting Assembly |
| CN203362083U (en) * | 2013-07-18 | 2013-12-25 | 陕西鼎和源瑞环境工程有限公司 | Sand blocking prevention hydraulic anchor for horizontal well fracturing |
| CN205532421U (en) * | 2016-04-15 | 2016-08-31 | 陕西长兴石油科技有限公司 | Oil field borehole operation water conservancy anchor |
| CN206608127U (en) * | 2016-11-14 | 2017-11-03 | 中国石油化工股份有限公司 | Hydraulic cylinder-type hydraulic anchor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2743035C1 (en) * | 2020-06-10 | 2021-02-12 | Публичное акционерное общество «Татнефть» имени В.Д. Шашина | Hydraulic anchor for fixing tubings in wells with rod pumps (variants) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170201 |