CN102444391B - Portable well mouth sealer - Google Patents
Portable well mouth sealer Download PDFInfo
- Publication number
- CN102444391B CN102444391B CN201010506948.6A CN201010506948A CN102444391B CN 102444391 B CN102444391 B CN 102444391B CN 201010506948 A CN201010506948 A CN 201010506948A CN 102444391 B CN102444391 B CN 102444391B
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- Prior art keywords
- well mouth
- sealing
- rigid body
- production tree
- pressure
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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 oil field small-scale workshops, particularly relating to a kind of comprising can the two-part Portable well mouth sealer of folding.
Background technology
At present, most of oil field all adopts sucker rod pump to exploit, and in this recovery process, needs sealing device to realize wellhead sealing.Traditional well mouth sealing device is fixed on well head, under oil pumper normal operating conditions or under orderly closedown state, play sealing function, and the generation of the accident such as prevent blowout, crude oil leaks, its sealing realizes mainly through O-ring seal and polished rod.And for well head small-scale workshops, as changed polished rod, touching pump etc., the sealing function of well head just effectively can not be realized, Normal practice is exactly first carry out kill job, guarantees that pit shaft could be implemented after stable.So, both lost time, increased cost again.Especially, new technology-coiled rod that traditional well mouth sealing device can not be applicable to bring into use in recent years proposes plunger operation.Therefore, how can be raised the efficiency by change sealer structure and sealing means, to save cost, become those skilled in the art's questions of common interest.
Summary of the invention
The object of the invention is to propose a kind ofly facilitate installing/dismounting and well head can be realized at the Portable well mouth sealer changing the sealing under the small maintenance job state such as polished rod.
For solving the problem, the present invention adopts following technical scheme:
A kind of Portable well mouth sealer, comprise pressure-bearing rigid body 5 and polished rod or sucker rod encapsulated holes 11, this pressure-bearing rigid body 5 is by can two columnar parts of folding form, these two columnar parts are formed with semi-cylindrical depression on opposite sides, and when two columnar parts close, these two semi-cylindrical are recessed to form polished rod or sucker rod encapsulated holes 11.
Above-mentioned Portable well mouth sealer also comprises production tree top encapsulation chamber 9, and this production tree top encapsulation chamber 9 is at this pressure-bearing rigid body 5 bottom surface opening, and the part between this pressure-bearing rigid body 5 end face to this production tree top encapsulation chamber 9 end face is the top board of this pressure-bearing rigid body 5.
For above-mentioned Portable well mouth sealer, this side, production tree top encapsulation chamber 9 is formed with the screw thread matched with production tree top sidewall.
Above-mentioned Portable well mouth sealer also comprises packing unit 2, sealing clamp 1 and seal-locking mechanism 3 and 4, sealing glue core 2 is the colloid interlayers in the top board and this production tree top encapsulation chamber 9 of this pressure-bearing rigid body 5 between sealing pressing plate 1, realizes Expansion sealing by seal-locking mechanism about 3 and 4 extruding.
For above-mentioned Portable well mouth sealer, between the periphery of sealing pressing plate 1 cross section and the periphery of this production tree top encapsulation chamber 9 cross section, form sealed groove 10, sealing glue core 10 peripheral part is communicated with this production tree top encapsulation chamber 9.
For above-mentioned Portable well mouth sealer, sealing retaining mechanism comprises sealing locking screw holes group and sealing lock bolt group with matching.
For above-mentioned Portable well mouth sealer, sealing locking screw holes group comprises at least 2 sealing locking screw holes 4 be evenly distributed on around this polished rod or sucker rod encapsulated holes 11, the top board of these sealing locking screw holes 4 these pressure-bearing rigid bodies 5 through, sealing glue core 2 and sealing clamp 1.
For above-mentioned Portable well mouth sealer, these two columnar parts comprise the folding end of permanent link as the axle of this open and close movement and this permanent link offside.
For above-mentioned Portable well mouth sealer, the permanent link of these two columnar parts is connected by stationary links.
For above-mentioned Portable well mouth sealer, the folding end of these two columnar parts when closed by connecting screw rod 7, the cooperating together of connecting screw hole 8.
After adopting technique scheme, advantage of the present invention and feature are:
1, wellhead sealing device volume of the present invention is little, and structure is simple, easy to carry, easy installation and removal;
2, eliminate the kill job link of well head small-scale workshops, field operation is convenient, safety both, saves time again, saving of labor;
3, improve the efficiency of operation on the one hand, significantly can reduce operating cost on the other hand, more mainly oil increasing effect is remarkable.
Accompanying drawing explanation
Fig. 1 is the stereogram of an embodiment of Portable well mouth sealer of the present invention.
[primary clustering symbol description]
1 sealing clamp
2 packing units
3 sealing lock bolts
4 sealing locking screw holes
5 pressure-bearing steel bodies
6 stationary links
7 connecting screw rods
8 connecting screw holes
9 production tree top encapsulation chambeies
10 sealed grooves
11 polished rods or sucker rod encapsulated holes
Detailed description of the invention
Below, the shape and structure of an accompanying drawings Portable well mouth sealer of the present invention embodiment.
As shown in Figure 1, Portable well mouth sealer 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 is made up of two columnar parts of correspondence, and these two columnar parts can with the permanent link between them for axle open closed.These two columnar parts form complete cylindrical pressure-bearing rigid body when closing, 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 columnar parts are formed with semi-cylindrical depression on opposite sides, form polished rod or sucker rod encapsulated holes 11, wear for polished rod or sucker rod when these two columnar parts close.The permanent link of two columnar parts of pressure-bearing rigid body 5 can be connected by stationary links 6.These two corresponding columnar parts by stationary links 6 with permanent link for axle is opened, be enclosed within around polished rod or sucker rod, then with permanent link for axle closes this two columnar parts, be arranged in polished rod or sucker rod encapsulated holes 11 to make polished rod or sucker rod.In these two columnar parts, on each cylinder cross section, the side relative with permanent link is folding end, on the folding end that the folding end of a columnar part is provided with connecting screw rod 7, another columnar part, correspondence position is provided with connecting screw hole 8, connect by the folding end of the cooperation between connecting screw rod 7 and connecting screw hole 8 by close two cylinders and tighten together, make that pressure-bearing rigid body 5 one-tenth is as a whole to be enclosed within polished rod or sucker rod, and realize being connected with well head.
Production tree top encapsulation chamber 9 is at pressure-bearing rigid body 5 bottom surface opening, and therefore, the part between pressure-bearing rigid body 5 end face to production tree top encapsulation chamber 9 end face forms the top board of pressure-bearing rigid body 5.Side, production tree top encapsulation chamber 9 is formed with the screw thread matched with production tree sidewall.
In production tree top encapsulation chamber 9, be provided with sealing clamp 1, between the periphery of sealing clamp 1 cross section and the periphery of production tree top encapsulation chamber 9 cross section, form sealed groove 10.
Packing unit 2 is the colloid interlayers between the top board of pressure-bearing rigid body 5 and sealing clamp 1, and its peripheral part is communicated with production tree top encapsulation chamber 9 by sealed groove 10.
Seal-locking mechanism comprises sealing locking screw holes group and sealing lock bolt group.Sealing locking screw holes group comprises at least 2 sealing locking screw holes 4, the top board of the through pressure-bearing rigid body 5 of each sealing locking screw holes 4, packing unit 2 and sealing clamp 1.Wherein, the quantity sealing locking screw holes is preferably 4.
Each sealing lock bolt 3 matches with corresponding sealing locking screw holes 4, by tighten sealing lock bolt 3 make the top board of pressure-bearing rigid body 5 and sealing clamp 1 adjacent to each other, realize the extruding to the packing unit 2 between them.
Below, to change polished rod, an embodiment of Portable well mouth sealer using method of the present invention is described.
When changing polished rod, first shadoof post is slowly gone up with crane until polished rod lower end arrives pithead position, stopping is carried, after waiting for that pit shaft is stable, tear well head (polished rod sealer or rubber gate) open, shadoof post in continuation, after polished rod proposes pit shaft completely, stopping is carried, the Portable well mouth sealer of above-mentioned shape and structure is installed.Concrete operation step is: by pressure-bearing steel body 5 obvolvent (as son of checking card) on sucker rod, to connect with connecting screw rod 7 and fastening, then rotating pressure-bearing steel body 5, until production tree top enters in the production tree top encapsulation chamber 9 of pressure-bearing rigid body 5, continue to rotate, until the top at production tree top embeds the sealed groove 10 between pressure-bearing rigid body 5 and sealing clamp 1, and fully fit with packing unit 2 and realize external seal.Then four sealing lock bolts 3 directly over rotating pressure-bearing rigid body 5, make the top board of pressure-bearing rigid body 5 and the common crush seal glue core 2 of sealing clamp 1, packing unit 2 are expanded, holds sucker rod tightly, thus realize sealing in sucker rod.Then accomplish fluently clamp, slowly transfer roofbolt, until all load drops on Portable well mouth sealer, finally implement to change polished rod (operation is now identical with routine operation).When this device carries out operation after being arranged on oil field shaft mouth, can prevent well head overflow or rise press cause pollution, gas blowout accident.
Sealer of oil field well mouth of the present invention, except possessing the function of conventional wellhead sealing device, also has the advantage of self, mainly comprises:
(1) this pressure of equipment is more than 5MPa, meets the well control safety requirement of normal Dynamical characteristic completely;
(2) i.e. salable polished rod, also salable sucker rod, can realize that no killing well changes polished rod, touches pump, plunger proposes the operations such as pump barrel at the scene;
(3) volume is little, weight is little, carries, Job Operations is convenient;
(4) structure is simple, and sealing fuse is convenient to repair and replacement, makes, maintenance cost is lower.
By the use of sealer of oil field well mouth of the present invention, decrease the kill job link of well head small-scale workshops, field operation is convenient, safety both, saves time again, saving of labor, and effectively can reduce cost of production on the one hand, more mainly oil increasing effect is remarkable.
Claims (8)
1. a Portable well mouth sealer, comprises pressure-bearing rigid body (5) and polished rod or sucker rod encapsulated holes (11), it is characterized in that:
Described pressure-bearing rigid body (5) is by can two columnar parts of folding form, described two columnar parts are formed with semi-cylindrical depression on opposite sides, when two columnar parts close, described semi-cylindrical is recessed to form polished rod or sucker rod encapsulated holes (11)
Also comprise production tree top encapsulation chamber (9), described production tree top encapsulation chamber (9) is at described pressure-bearing rigid body (5) bottom surface opening, part between described pressure-bearing rigid body (5) end face to described production tree top encapsulation chamber (9) end face is the top board of described pressure-bearing rigid body (5)
Also comprise packing unit (2), sealing clamp (1) and seal-locking mechanism (3,4), described packing unit (2) is the colloid interlayer in the top board and described production tree top encapsulation chamber (9) of described pressure-bearing rigid body (5) between described sealing clamp (1), extruded up and down by seal-locking mechanism (3,4) and realize Expansion sealing.
2. Portable well mouth sealer as claimed in claim 1, it is characterized in that, described production tree top encapsulation chamber (9) side is formed with the screw thread matched with production tree top sidewall.
3. Portable well mouth sealer as claimed in claim 1, it is characterized in that, form sealed groove (10) between the periphery of described sealing clamp (1) cross section and the periphery of described production tree top encapsulation chamber (9) cross section, described packing unit (2) peripheral part is communicated with described production tree top encapsulation chamber (9).
4. the Portable well mouth sealer as described in claim 1 or 3, is characterized in that, described seal-locking mechanism comprises sealing locking screw holes group and sealing lock bolt group with matching.
5. Portable well mouth sealer as claimed in claim 4, it is characterized in that, described sealing locking screw holes group comprises at least 2 and is evenly distributed on described polished rod or sucker rod encapsulated holes (11) sealing locking screw holes (4) around, the top board of the through described pressure-bearing rigid body (5) of described sealing locking screw holes (4), described packing unit (2) and described sealing clamp (1).
6. the Portable well mouth sealer as described in claim 1 or 3, is characterized in that, described two columnar parts comprise the folding end of permanent link as the axle of described open and close movement and described permanent link offside.
7. Portable well mouth sealer as claimed in claim 6, is characterized in that, the permanent link of described two columnar parts is connected by stationary links (6).
8. Portable well mouth sealer as claimed in claim 6, is characterized in that, the folding end of described two columnar parts when closed by connecting screw rod (7), the cooperating together of connecting screw hole (8).
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 CN102444391A (en) | 2012-05-09 |
| CN102444391B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029958B (en) * | 2018-01-11 | 2024-06-25 | 中国石油天然气股份有限公司 | Sealing device for christmas tree port |
| CN108612502A (en) * | 2018-04-23 | 2018-10-02 | 刘洪俊 | A kind of production tree easy to assembly, fixation and operating method |
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102444391A (en) | 2012-05-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161014 |