CN217206386U - Blowout preventer with anti-corrosion wear-resistant coating - Google Patents
Blowout preventer with anti-corrosion wear-resistant coating Download PDFInfo
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- CN217206386U CN217206386U CN202220471135.6U CN202220471135U CN217206386U CN 217206386 U CN217206386 U CN 217206386U CN 202220471135 U CN202220471135 U CN 202220471135U CN 217206386 U CN217206386 U CN 217206386U
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- resistant coating
- corrosion
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- blowout preventer
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Abstract
The utility model discloses a preventer with anticorrosive wear-resisting coating, include: a housing and a piston slidably connected; the inner wall area and the first groove area of the shell are covered with anti-corrosion wear-resistant coatings; the outer sealing surface area, the second groove area and the inner sealing surface area of the piston are all covered with the anti-corrosion wear-resistant coating. Therefore, the shell and the piston are covered with the anti-corrosion wear-resistant coating, so that a protective film can be formed on the surfaces of the shell and the piston, the shell and the piston can be protected, and the shell and the piston are prevented from being corroded, scratched and the like.
Description
Technical Field
The utility model belongs to the technical field of ring preventer technique and specifically relates to a preventer with anticorrosive wear-resisting coating.
Background
Currently, in the field of oil fields, the use of annular blowout preventers is very common during drilling and workover.
As can be seen in the prior art annular blowout preventer construction, when the annular blowout preventer is closed, the inner and outer sealing surface portions of the piston are exposed to well fluid. Because the well fluid has certain corrosivity and contains silt, when the piston moves up and down, the sealing surfaces of the inner side and the outer side of the piston are inevitably scratched, the roughness of the sealing surface is increased due to slight corrosion and scratching, and the abrasion of the sealing element can be aggravated.
When a user finds that the annular blowout preventer is abnormal and takes apart for maintenance, the sealing surfaces of the shell and the piston are seriously damaged. Repaired damaged parts can generally adopt a repair welding mode, and the original precision of equipment is difficult to achieve by secondary machining of the repaired sealing surface; for large-area scratches, repair welding cost is very high, and large-area repair welding can cause thermal deformation of other parts and scrap the whole workpiece, so that repair welding for repairing the damaged part is a very undesirable method.
SUMMERY OF THE UTILITY MODEL
The utility model provides a preventer with anticorrosive wear-resisting coating to solve the problem that proposes in the above-mentioned background art.
The utility model provides a its technical problem take following technical scheme to realize:
an embodiment of the utility model provides a preventer with anticorrosive wear-resistant coating, include: a housing and a piston slidably connected;
the inner wall area and the first groove area of the shell are covered with anti-corrosion wear-resistant coatings;
the outer sealing surface area, the second groove area and the inner sealing surface area of the piston are all covered with the anti-corrosion wear-resistant coating.
Optionally, in an embodiment of the present invention, the thickness of the anti-corrosion wear-resistant coating on the inner wall region, the first groove region, the outer seal face region, the second groove region, and the inner seal face region is the same;
the thickness value of the anticorrosion wear-resistant coating is 0.015-0.025 mm.
Optionally, in an embodiment of the present invention, the device further includes a support ring fixedly connected to the housing;
the support ring is connected with the piston in a sliding manner;
an O-shaped sealing ring is arranged between the support ring and the inner wall area;
two U-shaped sealing rings are arranged between the supporting ring and the outer sealing surface area.
Optionally, in the embodiment of the present invention, two first grooves are disposed on the first groove region, and the U-shaped sealing ring is disposed in the first groove.
Optionally, in the embodiment of the present invention, two second grooves are disposed on the second groove region, and the U-shaped sealing ring and the O-shaped sealing ring are disposed in the second grooves, respectively.
Optionally, in an embodiment of the present invention, a hydraulic oil chamber is disposed between the casing and the support ring;
the hydraulic oil cavity is used for filling hydraulic oil.
Optionally, in an embodiment of the present invention, the transverse dimension of the hydraulic oil chamber is 75.5 mm.
Optionally, in an embodiment of the present invention, a shape of the support ring matches a shape of the piston.
Optionally, in an embodiment of the present invention, a well fluid area is disposed in the middle of the casing.
Optionally, in an embodiment of the present invention, the diameter of the housing is 745 mm.
The utility model has the advantages that:
therefore, the shell and the piston are covered with the anti-corrosion wear-resistant coating, so that a protective film can be formed on the surfaces of the shell and the piston, the shell and the piston can be protected, and the shell and the piston are prevented from being corroded, scratched and the like.
Drawings
Fig. 1 is a schematic structural diagram of a shell with an anti-corrosion wear-resistant coating provided by the present invention;
FIG. 2 is a schematic structural view of a piston with an anti-corrosion wear-resistant coating provided by the present invention;
FIG. 3 is a schematic structural view of a blowout preventer with an anti-corrosive wear-resistant coating provided by the present invention;
reference numerals:
1. a housing; 1-1, inner wall area; 1-2, a first trench region; 2. a piston; 2-1, an outer sealing surface region; 2-2, a second trench region; 2-3, inner seal face area; 3. a support ring; a. a well fluid zone; b. and a hydraulic oil chamber.
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
the utility model provides a preventer with anticorrosive wear-resisting coating, include: a housing 1 and a piston 2 which are connected in a sliding manner;
as shown in fig. 1, an inner wall area 1-1 and a first groove area 1-2 of the housing 1 are covered with an anti-corrosion wear-resistant coating;
as shown in fig. 2, the outer seal surface region 2-1, the second groove region 2-2 and the inner seal surface region 2-3 of the piston 2 are covered with the corrosion-resistant and wear-resistant coating.
So, because casing 1 and piston 2 coat have anticorrosive wear-resisting coating, consequently, can form the one deck protection film on casing 1 and piston 2's surface, can play the effect of protection casing 1, piston 2, avoid casing 1, piston 2 functions such as corroded, fish tail.
Wherein the thick black lines in fig. 1 and 2 represent the corrosion and wear resistant coating.
Optionally, in the embodiment of the present invention, the thicknesses of the anti-corrosion wear-resistant coating on the inner wall region 1-1, the first groove region 1-2, the outer seal surface region 2-1, the second groove region 2-2 and the inner seal surface region 2-3 are all the same;
the thickness value of the anticorrosion wear-resistant coating is 0.015-0.025 mm.
Optionally, in the embodiment of the present invention, as shown in fig. 3, the present invention further includes a support ring 3 fixedly connected to the housing 1;
the support ring 3 is connected with the piston 2 in a sliding way;
an O-shaped sealing ring is arranged between the support ring 3 and the inner wall area 1-1;
two U-shaped sealing rings are arranged between the support ring 3 and the outer sealing surface area 2-1.
It should be noted that the support ring 3 has two functions, one of which is used for blocking the hydraulic oil in the hydraulic oil chamber b from leaking; the two functions are guiding function, which is convenient for the piston 2 to move up and down.
Optionally, in the embodiment of the present invention, two first grooves are disposed on the first groove region 1-2, and the U-shaped sealing ring is disposed in each first groove.
Optionally, in the embodiment of the present invention, two second grooves are disposed on the second groove region 2-2, and the U-shaped sealing ring and the O-shaped sealing ring are disposed in the second grooves, respectively.
Optionally, in the embodiment of the present invention, a hydraulic oil chamber b is disposed between the casing 1 and the support ring 3;
and the hydraulic oil cavity b is used for filling hydraulic oil.
Wherein the piston 2 can be pushed up and down along the housing 1 by hydraulic oil.
Optionally, in the embodiment of the present invention, the transverse dimension of the hydraulic oil chamber b is 75.5 mm.
Optionally, in the embodiment of the present invention, the shape of the support ring 3 matches the shape of the piston 2.
Optionally, in the embodiment of the present invention, a well fluid area a is disposed in the middle of the casing 1.
Optionally, in the embodiment of the present invention, the diameter of the housing 1 is 745 mm.
The utility model discloses a theory of operation and working process as follows:
in the actual use process, impurities or well liquid invaded in the hydraulic oil inevitably occur, the hydraulic oil invading the well liquid can enter the hydraulic oil cavity b and directly corrode the inner wall area 1-1 and the first groove area 1-2 of the shell 1, and the corrosion-resistant and wear-resistant coating covers the inner wall area 1-1 and the first groove area 1-2 of the shell 1, so that a protective film can be formed due to the existence of the corrosion-resistant and wear-resistant coating, the well liquid is effectively prevented from contacting with a metal matrix, and the corrosion is prevented.
When the piston 2 is in a rising state, as can be seen from fig. 3, the outer sealing surface area 2-1 and the inner sealing surface area 2-3 of the piston 2 are exposed to well fluid for a long time, and because the outer sealing surface area 2-1, the second groove area 2-2 and the inner sealing surface area 2-3 of the piston 2 are all covered with the anti-corrosion wear-resistant coating, the corrosion of the piston 2 by the well fluid is greatly reduced.
In addition, if the anticorrosive wear-resistant coating is damaged, the anticorrosive wear-resistant coating can be sprayed again, so that the surface is intact as before.
So, because casing 1 and piston 2 coat have anticorrosive wear-resisting coating, consequently, can form the one deck protection film on casing 1 and piston 2's surface, can play the effect of protection casing 1, piston 2, avoid casing 1, piston 2 functions such as corroded, fish tail, prolonged life.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.
Claims (10)
1. A blowout preventer with an anti-corrosive wear resistant coating, comprising: a housing (1) and a piston (2) which are connected in a sliding manner;
an anti-corrosion wear-resistant coating covers the inner wall area (1-1) and the first groove area (1-2) of the shell (1);
the outer sealing surface area (2-1), the second groove area (2-2) and the inner sealing surface area (2-3) of the piston (2) are covered with the anti-corrosion wear-resistant coating.
2. The blowout preventer with an anti-corrosion and wear-resistant coating according to claim 1, wherein the thickness of the anti-corrosion and wear-resistant coating on the inner wall region (1-1), the first groove region (1-2), the outer seal face region (2-1), the second groove region (2-2) and the inner seal face region (2-3) are the same;
the thickness value of the anticorrosion wear-resistant coating is 0.015-0.025 mm.
3. The blowout preventer with the anti-corrosion wear-resistant coating according to claim 2, further comprising a support ring (3) fixedly connected with the housing (1);
the support ring (3) is connected with the piston (2) in a sliding way;
an O-shaped sealing ring is arranged between the support ring (3) and the inner wall area (1-1);
two U-shaped sealing rings are arranged between the support ring (3) and the outer sealing surface area (2-1).
4. The blowout preventer with the anti-corrosion and wear-resistant coating according to claim 3, wherein two first grooves are provided in the first groove regions (1-2), and the U-shaped sealing ring is provided in each first groove.
5. The blowout preventer with the anti-corrosion and wear-resistant coating according to claim 4, wherein two second grooves are provided in the second groove region (2-2), and the U-shaped seal ring and the O-shaped seal ring are respectively provided in the second grooves.
6. The blowout preventer with the anti-corrosion wear-resistant coating according to claim 5, wherein a hydraulic oil chamber (b) is provided between the housing (1) and the support ring (3);
the hydraulic oil cavity (b) is used for filling hydraulic oil.
7. The blowout preventer with the anti-corrosion and wear-resistant coating according to claim 6, wherein the hydraulic oil chamber (b) has a transverse dimension of 75.5 mm.
8. Blowout preventer with anti-corrosion and wear-resistant coating according to claim 3, characterized in that the support ring (3) has a shape that matches the shape of the piston (2).
9. Blowout preventer with anti-corrosion and wear-resistant coating according to claim 1, characterized in that the middle of the housing (1) is provided with a well fluid zone (a).
10. Blowout preventer with a corrosion and wear resistant coating according to claim 1, characterized in that the housing (1) has a diameter size of 745 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220471135.6U CN217206386U (en) | 2022-03-04 | 2022-03-04 | Blowout preventer with anti-corrosion wear-resistant coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220471135.6U CN217206386U (en) | 2022-03-04 | 2022-03-04 | Blowout preventer with anti-corrosion wear-resistant coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217206386U true CN217206386U (en) | 2022-08-16 |
Family
ID=82753720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220471135.6U Active CN217206386U (en) | 2022-03-04 | 2022-03-04 | Blowout preventer with anti-corrosion wear-resistant coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217206386U (en) |
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2022
- 2022-03-04 CN CN202220471135.6U patent/CN217206386U/en active Active
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