CN209369756U - A kind of hydraulic anchor - Google Patents
A kind of hydraulic anchor Download PDFInfo
- Publication number
- CN209369756U CN209369756U CN201822239525.7U CN201822239525U CN209369756U CN 209369756 U CN209369756 U CN 209369756U CN 201822239525 U CN201822239525 U CN 201822239525U CN 209369756 U CN209369756 U CN 209369756U
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- anchor
- hole
- fluke
- anchor fluke
- diameter
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Abstract
A kind of hydraulic anchor, there is anchor tooth on anchor fluke, oil pipe internal screw thread is arranged at the top of anchor body, oil tube external thread is arranged at the lower part of anchor body, the oil pipe internal screw thread on anchor body top and the oil tube external thread of anchor body lower part match, there is anchor hole on anchor body, the anchor hole is variable diameter hole, outer diameter is less than inner end diameter, two diameter segments form shoulder, there are two cylindrical sections with anchor hole cooperation on anchor fluke, right sealing ring is installed on the enlarged diameter section of two cylindrical sections, anchor fluke is mounted in the anchor hole, interstage sleeve is mounted on the inside of anchor body, interstage sleeve makes anchor fluke not depart from the anchor hole, left sealing ring is installed on the reduced diameter section of two cylindrical sections on anchor fluke, injection hole is set on anchor fluke, the injection hole is communicated with the anchor hole with the space that anchor fluke is formed, unidirectional gas injection valve is installed in the outer end of the injection hole, it does not need to pacify Shock mount eliminates various problems caused by spring, and anchor fluke energy reliable reset, the card tubing string accident of generation cannot be withdrawn by avoiding anchor fluke.
Description
Technical field
The utility model is the device in oil field pumping well, is the anchoring device of anchoring string, specifically a kind of waterpower
Anchor.
Background technique
When oil well oil-pumping, fluid column load replaces and shifts with changing on sucker rod with pumping unit up-down stroke in oil pipe, makes
Oil pipe elongation is shortened, and causes oil pumping pump efficiency low, and yield is reduced, and tubing bending reduces service life, and fluid column load alternating action exists
It is also easy to that oil pipe tripping is caused to fall well on oil pipe.In order to avoid the appearance of the above problem, scene has used a kind of hydraulic anchor, is used for
Fixed oil pipe, prevents oil pipe extension.When some oil-water well construction technologies, tubing string play causes the undergrounds such as packer work in order to prevent
Tool damage, will also connect hydraulic anchor on tool.Hydraulic anchor is that anchor fluke is released anchor by the thrust generated by anchor inside and outside pressure difference
Anchoring is realized on hole to casing.When needing to propose tubing string, balance the inside and outside differential pressure of anchor body, by the bullet between anchor body and anchor fluke
Anchor fluke is back into home position by spring, and realization is disanchored.Since the internal diameter of the anchor body of hydraulic anchor is greater than Φ 60mm, outer diameter is less than Φ
114mm, sidewall thickness only have 27mm, and it is Φ that anchor fluke, spring, which will design the diameter being installed on the anchor body sidewall of this 27mm,
In the anchor hole of 50mm, therefore the size of spring is small, and elastic force is limited, it is difficult to overcome the friction between the sealing ring and anchor hole on anchor fluke
Power, mentioning cannot withdraw when tubing string needs anchor fluke to withdraw, and cause card tubing string, and engineering accident occurs.Since spring is immersed in well liquid,
Spring easily corrodes damage, drops or disappears under the action of spring, also will appear the nonrecoverable problem of anchor fluke.
Summary of the invention
The purpose of this utility model is to design a kind of hydraulic anchor, overcomes the problems, such as above-mentioned, makes the anchor on its hydraulic anchor
Pawl energy reliable reset avoids anchor fluke that from cannot withdrawing the accident that card tubing string occurs.
Purpose of the utility model is realized as follows: including anchor body, right sealing ring, left sealing ring, unidirectional gas injection valve, anchor
Pawl, interstage sleeve have anchor tooth on anchor fluke, and oil pipe internal screw thread is arranged at the top of anchor body, and oil tube external thread is arranged at the lower part of anchor body, anchor body top
Oil pipe internal screw thread and the oil tube external thread of anchor body lower part match, and have anchor hole on anchor body, and the anchor hole is variable diameter hole, outer diameter
Less than inner end diameter, two diameter segments form shoulder, have two cylindrical sections with anchor hole cooperation on anchor fluke, described
Right sealing ring is installed, anchor fluke is mounted in the anchor hole, and interstage sleeve is mounted on the interior of anchor body on the enlarged diameter section of two cylindrical sections
Portion, interstage sleeve make anchor fluke not depart from the anchor hole, install left sealing ring on the reduced diameter section of two cylindrical sections on anchor fluke,
Injection hole is set on anchor fluke, and the injection hole is communicated with the anchor hole with the space that anchor fluke is formed, in the injection
Unidirectional gas injection valve is installed in the outer end in hole, and gas in the space that the anchor hole and anchor fluke are formed is injected into through unidirectional gas injection valve not
It can flow outwardly.
The beneficial effects of the utility model are: anchor fluke is pushed out and is anchored on casing under the effect of anchor inside and outside pressure difference,
The high pressure gas in the space that anchor hole and anchor fluke are formed is injected into through unidirectional gas injection valve at the same time by compression stored energy, is mentioned
Before oil pipe after the pressure difference ends of anchor inside and outside, the energy of high pressure gas release savings makes anchor fluke withdraw realization and disanchors, this is practical new
Type does not need installation spring, and various problems caused by eliminating because of spring enable anchor fluke reliable reset, and can exempt from anchor fluke cannot withdraw
The accident of the card tubing string of generation has significant economic benefit.
Detailed description of the invention
Attached drawing 1 is the installation diagram of the utility model.
Specific embodiment
1 pair of the embodiments of the present invention is illustrated with reference to the accompanying drawing.
As seen from the figure, the embodiments of the present invention include anchor body 1, right sealing ring 2, left sealing ring 3, unidirectional gas injection valve 4,
Anchor fluke 5, interstage sleeve 6 have anchor tooth on anchor fluke 5, and oil pipe internal screw thread is arranged at the top of anchor body 1, and oil tube external thread, anchor are arranged at the lower part of anchor body 1
The oil pipe internal screw thread on 1 top of body and the oil tube external thread of 1 lower part of anchor body match, and have anchor hole 1-2, the anchor hole 1-2 on anchor body 1
For variable diameter hole, outer diameter is less than inner end diameter, and two diameter segments form shoulder 1-1, have and the anchor hole 1-2 on anchor fluke 5
Two cylindrical sections of cooperation, install right sealing ring 2 on the enlarged diameter section of two cylindrical sections, and anchor fluke 5 is mounted on described
Anchor hole 1-2 in, interstage sleeve 6 is mounted on the inside of anchor body 1, and interstage sleeve 6 makes anchor fluke 5 not depart from the anchor hole 1-2, institute on anchor fluke 5
Left sealing ring 3 is installed on the reduced diameter section for two cylindrical sections stated, injection hole 5-1, the injection hole 5- are set on anchor fluke 5
1 communicates with the anchor hole 1-2 with the space that anchor fluke 5 is formed, and installs unidirectional gas injection valve 4 in the outer end of the injection hole 5-1,
The gas being injected into the space that the anchor hole 1-2 is formed with anchor fluke 5 through unidirectional gas injection valve 4 cannot flow outwardly.
Right sealing ring 2, left sealing ring 3 be in order to seal the fit clearance between anchor fluke 5 and anchor body 1, if sealing ring 2,
Left sealing ring 3, which is mounted in anchor hole 1-2 described on anchor body 1 and is mounted on anchor fluke 5, belongs to equivalent effect.
The utility model is connected to G.I.H on oil well pump, pressure rise when oil pumping in anchor body 1, certain when being higher than
The thrust generated when pressure is pushed out anchor fluke 5 to be anchored on casing, keep oil pipe fixed, avoid caused by oil pipe extension not
Good consequence.The high pressure gas being injected into the space that anchor hole 1-2 is formed with anchor fluke 5 through unidirectional gas injection valve 4 at the same time is pressed
Contracting stored energy mentions after 1 internal and external pressure difference of anchor body disappears before oil pipe, and anchor fluke 5 is back by the energy of high pressure gas release savings
Home position, anchor fluke 5 withdraw realization and disanchor.
According to the pressure for the high pressure gas that the starting pressure of anchoring determines to be filled in the space that anchor hole 1-2 and anchor fluke 5 are formed
Power is computed the pressure that can determine that needs are filled with by the temperature of ground experiment and G.I.H.
The function of unidirectional gas injection valve 4 is identical as the air valve on tire.
Claims (1)
1. a kind of hydraulic anchor, including anchor body (1), right sealing ring (2), left sealing ring (3), unidirectional gas injection valve (4), anchor fluke (5), gear
It covers (6), has anchor tooth on anchor fluke (5), oil pipe internal screw thread is arranged at the top of anchor body (1), and oil tube external thread, anchor are arranged at the lower part of anchor body (1)
The oil pipe internal screw thread on body (1) top and the oil tube external thread of anchor body (1) lower part match, and have anchor hole (1-2) on anchor body (1), described
Anchor hole (1-2) be variable diameter hole, outer diameter is less than inner end diameter, and two diameter segments form shoulder (1-1), and anchor fluke has on (5)
Two cylindrical sections cooperated with the anchor hole (1-2), install right sealing ring on the enlarged diameter section of two cylindrical sections
(2), anchor fluke (5) is mounted on that the anchor hole (1-2) is inner, and interstage sleeve (6) is mounted on the inside of anchor body (1), and interstage sleeve (6) makes anchor fluke
(5) anchor hole (1-2) is not departed from, it is characterized in that: installing on the reduced diameter section of two cylindrical sections described on anchor fluke (5) left
Injection hole (5-1) is arranged on anchor fluke (5) in sealing ring (3), the injection hole (5-1) and the anchor hole (1-2) and anchor fluke
(5) space formed communicates, and unidirectional gas injection valve (4) is installed in the outer end of the injection hole (5-1), through unidirectional gas injection valve (4)
The gas being injected into the space that the anchor hole (1-2) is formed with anchor fluke (5) cannot flow outwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239525.7U CN209369756U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239525.7U CN209369756U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209369756U true CN209369756U (en) | 2019-09-10 |
Family
ID=67828038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239525.7U Active CN209369756U (en) | 2018-12-28 | 2018-12-28 | A kind of hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209369756U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441382A (en) * | 2018-12-28 | 2019-03-08 | 易鲁川 | A kind of hydraulic anchor |
-
2018
- 2018-12-28 CN CN201822239525.7U patent/CN209369756U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441382A (en) * | 2018-12-28 | 2019-03-08 | 易鲁川 | A kind of hydraulic anchor |
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