CN212249912U - P140 sheathed tube high temperature and high pressure hydraulic anchor - Google Patents
P140 sheathed tube high temperature and high pressure hydraulic anchor Download PDFInfo
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- CN212249912U CN212249912U CN202020768225.2U CN202020768225U CN212249912U CN 212249912 U CN212249912 U CN 212249912U CN 202020768225 U CN202020768225 U CN 202020768225U CN 212249912 U CN212249912 U CN 212249912U
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Abstract
The utility model discloses a P140 sheathed tube high temperature and high pressure hydraulic anchor, including the hydraulic anchor body, the left side of hydraulic anchor body is equipped with the access mouth, a plurality of second mounting hole has been seted up in proper order to the inside that the outer wall of hydraulic anchor body was equipped with mounting groove and mounting groove, the inside both sides of mounting groove all are equipped with two seal chamber, the inner wall contact of seal chamber and hydraulic anchor body simultaneously. When the hydraulic anchor is in operation, when the oil pipe is filled with high-pressure liquid, the sealing cavity formed by the ball teeth and the O-shaped ring moves outwards under the action of pressure to overcome the compression force of the spring and the fixing force of the pressing sheet, the anchor teeth of the hydraulic anchor body are made of hard alloy, the hardness of the hard alloy can reach HRC70-80, the hardness of the P140 casing steel grade is generally below HRC45, therefore, the hydraulic anchor body can easily bite the P140 steel grade casing, and the O-shaped ring is made of fluororubber, so that the hydraulic anchor body can bear high temperature and pressure.
Description
Technical Field
The utility model relates to a high temperature high pressure hydraulic anchor technical field specifically is a P140 sheathed tube high temperature high pressure hydraulic anchor.
Background
The hydraulic anchor is the pressure build-up in the oil pipe, the anchor jaw of the hydraulic anchor extends outwards under the action of the liquid pressure to tightly clamp the inner wall of the casing pipe, the anchoring action is realized, and after the pressure of the oil casing is balanced, the anchor jaw is retracted under the action of the elasticity of the spring in the baffle plate to release the anchoring action; preventing axial displacement of the downhole tool. The anchor is used for 51/2' anchoring of downhole operation tubular columns such as casing oil (gas) well hydraulic fracturing, water well injection-increasing reconstruction, hydraulic sand blasting, cutting (or sand blasting perforation); at present, most of the conventional hydraulic anchors can be anchored on the casing below the P110 steel grade, so that when the conventional hydraulic anchor is anchored on the casing above the P110 steel grade, the conventional hydraulic anchor is limited and cannot meet the existing requirements, and the high-temperature and high-pressure hydraulic anchor of the P140 casing is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a P140 sheathed tube high temperature high pressure hydraulic anchor to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: comprises a hydraulic anchor body, wherein the left side of the hydraulic anchor body is provided with an access port, the outer wall surface of the hydraulic anchor body is provided with a mounting groove, a plurality of second mounting holes are sequentially arranged in the mounting groove, two sealing cavities are respectively arranged on two sides of the interior of the mounting groove, meanwhile, the sealing cavity is contacted with the inner wall of the hydraulic anchor body, spherical teeth and an O-shaped ring are arranged inside the sealing cavity, meanwhile, the spherical teeth and the O-shaped ring jointly form a sealed cavity, springs are fixedly arranged inside the sealed cavity, pressing sheets are arranged inside the mounting grooves, and a plurality of second fastening screws are arranged on the pressing sheets, meanwhile, a second fastening screw is positioned in the second mounting hole, two groups of anchor teeth are fixedly mounted on the pressing sheet, simultaneously the anchor tooth is located the inside of mounting groove, first mounting hole has been seted up to the outer wall one side of hydraulic anchor body, and the inside of first mounting hole is equipped with first fastening screw simultaneously.
Preferably, the inner wall of the hydraulic anchor body is provided with a sand prevention sleeve, and the thickness of the sand prevention sleeve is between 2.0mm and 3.5 mm.
Preferably, the areas of the two groups of sealed cavities are the same, and the elastic limits of the springs are the same.
Preferably, the O-shaped ring is made of fluororubber.
Preferably, the anchor teeth are made of hard alloy materials.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses at the during operation, when being full of high-pressure liquid in the oil pipe, the seal chamber that ball tooth and O type circle are constituteed this moment is under the effect of pressure, outwards move, overcome the compressive force of spring and the fixed power of preforming, because the anchor tooth of this hydraulic anchor body adopts the carbide material to make, the hardness of carbide can reach HRC70-80, and the hardness of P140 sleeve pipe steel level is generally below HRC45, therefore, this hydraulic anchor body can be light the tight sleeve pipe of P140 steel level of clenching, and O type circle material adopts fluororubber, makes this hydraulic anchor body can bear the pressure by high temperature resistant;
2. the utility model discloses when retrieving, the pressure in the oil pipe is unloaded, and the ball tooth is under the effect of spring, and the internal motion is moved to the hydraulic anchor this internally, loosens from the intraductal wall of sleeve to make this instrument can be retrieved.
Drawings
Fig. 1 is a schematic view of the overall structure of a P140 casing high-temperature high-pressure hydraulic anchor of the present invention;
fig. 2 is a schematic view of a three-dimensional structure of a high-temperature and high-pressure hydraulic anchor of a P140 casing of the present invention;
fig. 3 is an enlarged connection structure diagram of the P140 casing high-temperature high-pressure hydraulic anchor shown in fig. 1.
In the figure: 1. a sand prevention sleeve; 2. an access port; 3. a first fastening screw; 4. a hydraulic anchor body; 5. spherical teeth; 6. a spring; 7. tabletting; 8. a second fastening screw; 9. an O-shaped ring; 10. mounting grooves; 11. a first mounting hole; 12. sealing the cavity; 13. anchor teeth; 14. and a second mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution of a P140 casing high-temperature and high-pressure hydraulic anchor: the hydraulic anchor comprises a hydraulic anchor body 4, wherein an access port 2 is arranged on the left side of the hydraulic anchor body 4, an installation groove 10 is formed in the outer wall surface of the hydraulic anchor body 4, a plurality of second installation holes 14 are sequentially formed in the installation groove 10, two sealing cavities 12 are respectively arranged on two sides of the interior of the installation groove 10, the sealing cavities 12 are in contact with the inner wall of the hydraulic anchor body 4, spherical teeth 5 and O-shaped rings 9 are arranged in the sealing cavities 12, the spherical teeth 5 and the O-shaped rings 9 jointly form the sealing cavities 12, springs 6 are fixedly arranged in the sealing cavities 12, pressing sheets 7 are arranged in the installation groove 10, a plurality of second fastening screws 8 are arranged on the pressing sheets 7, the second fastening screws 8 are positioned in the second installation holes 14, two groups of anchor teeth 13 are fixedly arranged on the pressing sheets 7, the anchor teeth 13 are positioned in the installation groove 10, a first installation hole 11 is formed in one side of the outer wall surface of the hydraulic anchor, and the first fastening screw 3 is arranged inside the first mounting hole 11.
The inner wall of the hydraulic anchor body 4 is provided with a sand prevention sleeve 1, and the thickness of the sand prevention sleeve 1 is between 2.0mm and 3.5 mm.
The areas of the two groups of sealed cavities 12 are the same, and the elastic limit of the spring 6 is the same.
The O-shaped ring 9 is made of fluororubber, so that the hydraulic anchor body 4 has the characteristics of high temperature resistance and pressure bearing.
The anchor teeth 13 are made of hard alloy materials, so that the hardness of the hard alloy can reach HRC70-80, and the hardness of the P140 casing steel grade is generally lower than HRC45, so that the hydraulic anchor body 4 can easily bite the P140 steel grade casing.
The working principle is as follows: the utility model discloses an anchor 4 at P140 steel level's sleeve pipe earlier, at work, then, be full of high-pressure liquid in the oil pipe, the seal chamber 12 that ball tooth 5 and O type circle 9 constitute this moment is under the effect of pressure, outwards move, overcome the compressive force of spring 6 and the fixed power of preforming 7, because the anchor tooth 13 of this hydraulic anchor 4 adopts the carbide material, the hardness of carbide can reach HRC70-80 like this, and the hardness of P140 sleeve pipe steel level is generally below HRC45, therefore, this hydraulic anchor 4 can be light the tight sleeve pipe of P140 steel level of clenching, and O type circle material adopts fluorine rubber, make this hydraulic anchor can bear the pressure by high temperature resistant; when the pressure in the tubing is removed during retrieval, the buttons 5 are moved inwardly under the action of the spring 6, retracting into the body 4 of the hydraulic anchor, releasing them from the inside wall of the casing, allowing the tool to be retrieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a P140 sheathed tube high temperature and high pressure hydraulic anchor, includes hydraulic anchor body (4), its characterized in that: the left side of the hydraulic anchor body (4) is provided with an access port (2), the outer wall surface of the hydraulic anchor body (4) is provided with a mounting groove (10), a plurality of second mounting holes (14) are sequentially formed in the mounting groove (10), two sealing cavities (12) are respectively arranged on two sides of the interior of the mounting groove (10), the sealing cavities (12) are in contact with the inner wall of the hydraulic anchor body (4), spherical teeth (5) and O-shaped rings (9) are arranged in the sealing cavities (12), meanwhile, the spherical teeth (5) and the O-shaped rings (9) jointly form the sealing cavities (12), springs (6) are fixedly mounted in the sealing cavities (12), pressing sheets (7) are arranged in the mounting groove (10), a plurality of second fastening screws (8) are arranged on the pressing sheets (7), and the second fastening screws (8) are located in the second mounting holes (14), fixed mounting has two sets of anchor teeth (13) on preforming (7), and anchor tooth (13) are located the inside of mounting groove (10) simultaneously, first mounting hole (11) have been seted up to the outer wall one side of hydraulic anchor body (4), and the inside of first mounting hole (11) is equipped with first fastening screw (3) simultaneously.
2. The high-temperature high-pressure hydraulic anchor of the P140 casing pipe as claimed in claim 1, wherein: the inner wall of the hydraulic anchor body (4) is provided with a sand control sleeve (1), and the thickness of the sand control sleeve (1) is between 2.0mm and 3.5 mm.
3. The high-temperature high-pressure hydraulic anchor of the P140 casing pipe as claimed in claim 1, wherein: the areas of the two groups of sealed cavities (12) are the same, and the elastic limits of the springs (6) are the same.
4. The high-temperature high-pressure hydraulic anchor of the P140 casing pipe as claimed in claim 1, wherein: the O-shaped ring (9) is made of fluororubber.
5. The high-temperature high-pressure hydraulic anchor of the P140 casing pipe as claimed in claim 1, wherein: the anchor teeth (13) are made of hard alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020768225.2U CN212249912U (en) | 2020-05-11 | 2020-05-11 | P140 sheathed tube high temperature and high pressure hydraulic anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020768225.2U CN212249912U (en) | 2020-05-11 | 2020-05-11 | P140 sheathed tube high temperature and high pressure hydraulic anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212249912U true CN212249912U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020768225.2U Active CN212249912U (en) | 2020-05-11 | 2020-05-11 | P140 sheathed tube high temperature and high pressure hydraulic anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212249912U (en) |
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2020
- 2020-05-11 CN CN202020768225.2U patent/CN212249912U/en active Active
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