CN102444391A - Portable well mouth sealer - Google Patents
Portable well mouth sealer Download PDFInfo
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- CN102444391A CN102444391A CN2010105069486A CN201010506948A CN102444391A CN 102444391 A CN102444391 A CN 102444391A CN 2010105069486 A CN2010105069486 A CN 2010105069486A CN 201010506948 A CN201010506948 A CN 201010506948A CN 102444391 A CN102444391 A CN 102444391A
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- rigid body
- production tree
- sealing device
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Abstract
The invention discloses a portable well mouth sealer, which comprises a pressure-bearing rigid body (5) and a polished rod or sucker rod packaging hole (11), wherein the pressure-bearing rigid body (5) consists of two cylinder parts which can be opened and closed; semi-cylindrical recesses are formed on opposite surfaces of the two cylinder parts; and when the two cylinder parts are enclosed, the two semi-cylindrical recesses form the polished rod or sucker rod packaging hole (11). The portable well mouth sealer disclosed by the invention has a small size and a simple structure, and is convenient to install and detach; the well killing operation procedure of small-sized well mouth operation is eliminated, so that field operation is convenient and safe, and time and labor are saved; and the operating efficiency is increased, the operation cost can be reduced greatly, and the production effectiveness is enhanced, so that a remarkable oil increasing effect is achieved.
Description
Technical field
The present invention relates to a kind of wellhead sealing device when realizing the oil field small-scale workshops, but relate in particular to a kind of two-part portable wellhead sealing device that comprises folding.
Background technology
At present, the sucker rod pump exploitation is all adopted in most of oil field, in this recovery process, needs sealing device to realize the well head sealing.Traditional well mouth sealing device is to be fixed on well head, is playing sealing function under the oil pumper normal operating conditions or under the orderly closedown state, prevents the generation of accidents such as blowout, crude oil leak, and its sealing mainly realizes through O-ring seal and polished rod.And for the well head small-scale workshops, as change polished rod, bump pump etc., just can not effectively realize the sealing function of well head, conventional way is exactly at first to carry out kill job, guarantees that pit shaft could implement after stable.So, both lost time, increased cost again.Especially, traditional well mouth sealing device can not be applicable to that new technology-coiled rod of bringing into use in recent years proposes the plunger operation.Therefore, how can raise the efficiency, save cost, become those skilled in the art's questions of common interest through changing sealer structure and sealing means.
Summary of the invention
The objective of the invention is to propose a kind of portable wellhead sealing device that makes things convenient for installing/dismounting and can realize the sealing of well head under small-sized upkeep operation states such as replacing polished rod.
For addressing the above problem, the present invention adopts following technical scheme:
A kind of portable wellhead sealing device; Comprise pressure-bearing rigid body 5 and polished rod or sucker rod encapsulated holes 11; This pressure-bearing rigid body 5 partly is made up of two cylinders that can folding; These two cylinder parts are formed with half-cylindrical depression on opposite face, these two half round posts were recessed to form polished rod or sucker rod encapsulated holes 11 when two cylinder parts were closed.
Above-mentioned portable wellhead sealing device also comprises production tree top encapsulation chamber 9, and this production tree top encapsulation chamber 9 is at these pressure-bearing rigid body 5 bottom surface openings, and these pressure-bearing rigid body 5 end faces are the top boards of this pressure-bearing rigid body 5 to the part between these production tree top encapsulation chamber 9 end faces.
For above-mentioned portable wellhead sealing device, these 9 sides, production tree top encapsulation chamber are formed with the screw thread that matches with production tree top sidewall.
Above-mentioned portable wellhead sealing device also comprises packing unit 2, sealing clamp 1 and seal-locking mechanism 3 and 4; Sealing glue core 2 is colloid interlayers between the sealing pressing plate 1 in the top board of this pressure-bearing rigid body 5 and this production tree top encapsulation chamber 9, pushes up and down through seal-locking mechanism 3 and 4 and realizes Expansion sealing.
For above-mentioned portable wellhead sealing device, form sealed groove 10 between the periphery of the periphery of sealing pressing plate 1 cross section and these production tree top encapsulation chamber 9 cross sections, sealing glue core 10 peripheral parts are communicated with this production tree top encapsulation chamber 9.
For above-mentioned portable wellhead sealing device, the sealing retaining mechanism comprises sealing locking screw group and sealing lock bolt group with matching.
For above-mentioned portable wellhead sealing device; Sealing locking screw group comprises that at least 2 are evenly distributed on this polished rod or sucker rod encapsulated holes 11 sealing locking screw 4 on every side, and these sealing locking screws 4 connect top board, sealing glue core 2 and the sealing clamp 1 of this pressure-bearing rigid body 5.
For above-mentioned portable wellhead sealing device, these two trunk portion branches comprise as the permanent link of the axle of this open and close movement and the folding end of this permanent link offside.
For above-mentioned portable wellhead sealing device, the permanent link of these two cylinder parts connects through stationary links.
For above-mentioned portable wellhead sealing device, the folding end of these two cylinder parts is cooperating together through connecting screw rod 7, connection screw 8 when closure.
After adopting technique scheme, advantage of the present invention and characteristics are:
1, wellhead sealing device volume of the present invention is little, simple in structure, easy to carry, easy installation and removal;
2, saved the kill job link of well head small-scale workshops, field operation is both convenient, safety, saves time again, the saving of labor;
3, improving efficiency of operation on the one hand, can significantly reduce operating cost on the other hand, mainly is that oil increasing effect is remarkable.
Description of drawings
Fig. 1 is the stereogram of an embodiment of the portable wellhead sealing device of the present invention.
[primary clustering symbol description]
1 sealing clamp
2 packing units
3 sealing lock bolts
4 sealing locking screws
5 pressure-bearing steel bodies
6 stationary links
7 connecting screw rods
8 connect screw
9 production tree top encapsulation chambeies
10 sealed grooves
11 polished rods or sucker rod encapsulated holes
The specific embodiment
Below, the shape and structure of an embodiment of accompanying drawings portable wellhead sealing device of the present invention.
As shown in Figure 1, portable wellhead sealing device of the present invention comprises pressure-bearing rigid body 5, polished rod or sucker rod encapsulated holes 11, production tree top encapsulation chamber 9, sealed groove 10, sealing clamp 1, packing unit 2, seal-locking mechanism.
Pressure-bearing rigid body 5 partly is made up of two cylinders of correspondence, and these two cylinder parts can be an open closed with the permanent link between them.These two cylinder parts constitute complete cylindrical pressure-bearing rigid body when closed, and at this, the shape of cross section of pressure-bearing rigid body 5 both can be circular, also can be rectangle, triangle or other shapes.These two cylinder parts are formed with half-cylindrical depression on opposite face, when these two cylinder parts are closed, constitute polished rod or sucker rod encapsulated holes 11, supply polished rod or sucker rod to wear.The permanent link of two cylinder parts of pressure-bearing rigid body 5 can connect through stationary links 6.The cylinder part of these two correspondences serves as that axle is opened through stationary links 6 with permanent link; Be enclosed within around polished rod or the sucker rod; Serve as closed these two the cylinder parts of axle with permanent link then, so that polished rod or sucker rod are arranged in polished rod or the sucker rod encapsulated holes 11.In this two cylinders part, be the folding end with the permanent relative side of link on each cylinder cross section; The folding end of cylinder part is provided with on the folding end of connecting screw rod 7, another cylinder part correspondence position and is provided with and connects screw 8; Through connecting screw rod 7 and the folding end that connects two cylinders that the cooperation between the screw 8 gets up closure connect and tighten together; Make 5 one-tenth as a whole being enclosed within on polished rod or the sucker rod of pressure-bearing rigid body, and realization is connected with well head.
Production tree top encapsulation chamber 9 is at pressure-bearing rigid body 5 bottom surface openings, and therefore, pressure-bearing rigid body 5 end faces constitute the top board of pressure-bearing rigid body 5 to the part between 9 end faces of production tree top encapsulation chamber.9 sides, production tree top encapsulation chamber are formed with the screw thread that matches with the production tree sidewall.
In production tree top encapsulation chamber 9, be provided with sealing clamp 1, form sealed groove 10 between the periphery of the periphery of sealing clamp 1 cross section and production tree top encapsulation chamber 9 cross sections.
Packing unit 2 is the top board of pressure-bearing rigid body 5 and the colloid interlayer between the sealing clamp 1, and its peripheral part is communicated with production tree top encapsulation chamber 9 through sealed groove 10.
Seal-locking mechanism comprises sealing locking screw group and sealing lock bolt group.Sealing locking screw group comprises at least 2 sealing locking screws 4, and each sealing locking screw 4 connects top board, packing unit 2 and the sealing clamp 1 of pressure-bearing rigid body 5.Wherein, the quantity of sealing locking screw is preferably 4.
Each sealing lock bolt 3 matches with corresponding sealing locking screw 4, seals lock bolt 3 and makes the top board of pressure-bearing rigid body 5 and sealing clamp 1 adjacent to each other through tightening, and realization is to the extruding of the packing unit between them 2.
Below, be example to change polished rod, an embodiment of portable wellhead sealing device method for using of the present invention is described.
When changing polished rod, at first slowly go up the shadoof post and arrive pithead position, carry on stopping until the polished rod lower end with crane; After waiting for that pit shaft is stable; Tear well head (polished rod sealer or rubber gate) open, shadoof post in the continuation is after polished rod proposes pit shaft fully; Carry on stopping, the portable wellhead sealing device of above-mentioned shape and structure is installed.The concrete operations step is: with pressure-bearing steel body 5 obvolvents (as the son of checking card) on sucker rod; Connect also fastening with connecting screw rod 7; Rotate pressure-bearing steel body 5 then, get in the production tree top encapsulation chamber 9 of pressure-bearing rigid body 5, continue rotation until the production tree top; Top until the production tree top embeds the sealed groove 10 between pressure-bearing rigid body 5 and the sealing clamp 1, and realizes external seal with packing unit 2 abundant applyings.Rotate four sealing lock bolts 3 directly over the pressure-bearing rigid body 5 then, make the top board and the sealing clamp 1 co-extruded packing unit 2 of pressure-bearing rigid body 5, make packing unit 2 expand, hold sucker rod tightly, thereby realize interior sealing sucker rod.Accomplish fluently clamp then, slowly transfer roofbolt, drop on the portable wellhead sealing device, implement to change polished rod (operation of this moment is identical with routine operation) at last until whole load.This device is installed in when carrying out operation after the oil field shaft mouth, can prevent the well head overflow or rises and press pollution, the gas blowout accident that causes.
Oil field shaft mouth sealer of the present invention also has the advantage of self except the function that possesses wellhead sealing device commonly used, mainly comprise:
(1) this pressure of equipment surpasses 5MPa, meets the well control safety requirements that normal machine is taken out well fully;
(2) be salable polished rod, also salable sucker rod can realize that at the scene not kill-job is changed polished rod, bumped pump, plunger proposes operations such as pump barrel;
(3) volume is little, weight is little, carries, Job Operations is convenient;
(4) simple in structure, the sealing fuse is convenient to repair and replacement, makes, maintenance cost is lower.
Through the use of oil field shaft mouth sealer of the present invention, reduced the kill job link of well head small-scale workshops, field operation is both convenient, safety, saves time again, the saving of labor, can effectively reduce production costs on the one hand, mainly be that oil increasing effect is remarkable.
Claims (10)
1. a portable wellhead sealing device comprises pressure-bearing rigid body (5) and polished rod or sucker rod encapsulated holes (11), it is characterized in that:
Said pressure-bearing rigid body (5) partly is made up of two cylinders that can folding, and said two cylinders part is formed with half-cylindrical depression on opposite face, and said two halves cylindrical depression formed polished rod or sucker rod encapsulated holes (11) when two cylinders parts were closed.
2. portable wellhead sealing device as claimed in claim 1; It is characterized in that; Also comprise production tree top encapsulation chamber (9); Said production tree top encapsulation chamber (9) is opening in said pressure-bearing rigid body (5) bottom surface, and said pressure-bearing rigid body (5) end face is the top board of said pressure-bearing rigid body (5) to the part between the end face of said production tree top encapsulation chamber (9).
3. portable wellhead sealing device as claimed in claim 2 is characterized in that, side, said production tree top encapsulation chamber (9) is formed with the screw thread that matches with production tree top sidewall.
4. portable wellhead sealing device as claimed in claim 2; It is characterized in that; Also comprise packing unit (2), sealing clamp (1) and seal-locking mechanism (3,4), said packing unit (2) is the colloid interlayer between the said sealing clamp (1) in the top board of said pressure-bearing rigid body (5) and said production tree top encapsulation chamber (9); Push the realization Expansion sealing up and down through seal-locking mechanism (3,4).
5. portable wellhead sealing device as claimed in claim 4; It is characterized in that; Form sealed groove (10) between the periphery of the periphery of said sealing clamp (1) cross section and said production tree top encapsulation chamber (9) cross section, said packing unit (10) peripheral part is communicated with said production tree top encapsulation chamber (9).
6. like claim 4 or 5 described portable wellhead sealing devices, it is characterized in that said seal-locking mechanism comprises sealing locking screw group and sealing lock bolt group with matching.
7. portable wellhead sealing device as claimed in claim 6; It is characterized in that; Said sealing locking screw group comprises that at least 2 are evenly distributed on said polished rod or sucker rod encapsulated holes (11) sealing locking screw (4) on every side, and said sealing locking screw (4) connects top board, said packing unit (2) and the said sealing clamp (1) of said pressure-bearing rigid body (5).
8. like claim 1 or 5 described portable wellhead sealing devices, it is characterized in that said two trunk portion branches comprise as the permanent link of the axle of said open and close movement and the folding end of said permanent link offside.
9. portable wellhead sealing device as claimed in claim 9 is characterized in that, the permanent link of said two cylinders part connects through stationary links (6).
10. portable wellhead sealing device as claimed in claim 9 is characterized in that, the folding end of said two cylinders part is cooperating together through connecting screw rod (7), connection screw (8) when closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010506948.6A CN102444391B (en) | 2010-10-14 | 2010-10-14 | Portable well mouth sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010506948.6A CN102444391B (en) | 2010-10-14 | 2010-10-14 | Portable well mouth sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102444391A true CN102444391A (en) | 2012-05-09 |
| CN102444391B CN102444391B (en) | 2015-04-22 |
Family
ID=46007284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010506948.6A Expired - Fee Related CN102444391B (en) | 2010-10-14 | 2010-10-14 | Portable well mouth sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102444391B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
| CN110029958A (en) * | 2018-01-11 | 2019-07-19 | 中国石油天然气股份有限公司 | Production tree port sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489625B1 (en) * | 1990-12-04 | 1996-02-14 | Cooper Cameron Corporation | Improved clamp and clamp supporting apparatus |
| US5492373A (en) * | 1994-09-28 | 1996-02-20 | J. M. Huber Corporation | Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer |
| CN2554340Y (en) * | 2002-06-14 | 2003-06-04 | 辽河石油勘探局兴隆台工程技术处 | Adjustable pressure ring shaped capping apparatus |
| CN2851538Y (en) * | 2005-03-15 | 2006-12-27 | 秦华忠 | Multifunctional polished rod sealing device for well head of pumping well |
| CN201826802U (en) * | 2010-10-14 | 2011-05-11 | 中国石油化工股份有限公司 | Portable wellhead sealer |
-
2010
- 2010-10-14 CN CN201010506948.6A patent/CN102444391B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489625B1 (en) * | 1990-12-04 | 1996-02-14 | Cooper Cameron Corporation | Improved clamp and clamp supporting apparatus |
| US5492373A (en) * | 1994-09-28 | 1996-02-20 | J. M. Huber Corporation | Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer |
| CN2554340Y (en) * | 2002-06-14 | 2003-06-04 | 辽河石油勘探局兴隆台工程技术处 | Adjustable pressure ring shaped capping apparatus |
| CN2851538Y (en) * | 2005-03-15 | 2006-12-27 | 秦华忠 | Multifunctional polished rod sealing device for well head of pumping well |
| CN201826802U (en) * | 2010-10-14 | 2011-05-11 | 中国石油化工股份有限公司 | Portable wellhead sealer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029958A (en) * | 2018-01-11 | 2019-07-19 | 中国石油天然气股份有限公司 | Production tree port sealing device |
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102444391B (en) | 2015-04-22 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161014 |
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| CF01 | Termination of patent right due to non-payment of annual fee |