CN206530311U - The upper seal of environmentally friendly closed rotating blowout preventer - Google Patents
The upper seal of environmentally friendly closed rotating blowout preventer Download PDFInfo
- Publication number
- CN206530311U CN206530311U CN201720121399.8U CN201720121399U CN206530311U CN 206530311 U CN206530311 U CN 206530311U CN 201720121399 U CN201720121399 U CN 201720121399U CN 206530311 U CN206530311 U CN 206530311U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- sealing
- oil
- upper seal
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses the upper seal of environmentally friendly closed rotating blowout preventer, upper connector（5）It is threaded into mandrel（1）On, baffle plate（3）It is fixed on mandrel（1）Go up and block connector（5）, upper press cover（8）It is sitting in shell（9）On, a lip oil sealing（2）Installed in upper press cover（8）It is interior, dynamic sealing body（10）Installed in mandrel（1）On, upper seal support（14）Installed in dynamic sealing body（10）Lower section, upper seal support（14）Groove install rotary oil seal（11）, No. two lip oil sealings（6）Installed in upper seal support（14）It is interior, it is monolithically fabricated the upper seal of environmentally friendly closed rotating blowout preventer.Upper sealed body structure of the present utility model is simple, firm and reliable connection.Frictional force is reduced, sealing surface wear is reduced, service life is improved, makes under balance pressure drilling work more efficiently.
Description
Technical field
The utility model is related to underbalance well drilling rotary blowout preventer, and in particular to environmentally friendly closed rotating blowout preventer it is upper close
Feng Ti.
Background technology
Current under-balanced drilling technology has evolved into ripe, and it finds and reservoir protec-tion and improve the side such as bit speed
The effect in face is also accepted.With developing rapidly for petroleum industry, field of oil drilling using under-balanced drilling technology as
A kind of one preferred technique.Environmental renovation is carried out energetically by country simultaneously, and the production equipment to petroleum industry proposes higher requirement.
Upper seal is the important component of rotation assembly, the upper seal of the rotation assembly of existing rotating blowout preventer
Sealing part abrasion it is too fast, shorten the service life of rotating blowout preventer.
The content of the invention
The purpose of this utility model is：A kind of upper seal of environmentally friendly closed rotating blowout preventer is provided, rotation is solved
It is the problem of assembly causes the life-span low using above the sealing part abrasion of seal is too fast among process, simple in construction, it is safe and reliable, carry
The operating efficiency of high under balance pressure drilling.
Technical solution of the present utility model is：The upper seal of the environmentally friendly closed rotating blowout preventer include baffle plate,
Upper connector, upper press cover, lip oil sealing, dynamic sealing body, rotary oil seal, upper seal support, mandrel and shell；Upper connector screw thread rotation
Enter on mandrel, baffle plate is fixed on mandrel by hexagon socket head cap screw and blocks upper connector, prevent connector from being taken off from mandrel
Open；Upper press cover is sitting on shell and connected together by hexagon socket head cap screw and shell, and upper connector and shell are sealed up by O-ring
Between sealing surface；Separated in the middle of two lip oil sealings with a spacer ring in upper press cover, pass through an oil sealing pressure
A number lip oil sealing is pressed in upper press cover by plate, dormant bolt, and upper press cover is formed by a lip oil sealing and upper connector
Sealing；Dynamic sealing body is arranged on mandrel, and is sealed by O-ring and mandrel formation；Upper seal support is arranged under dynamic sealing body
Have on side, upper seal support endoporus and rotary oil seal is installed in groove, groove, separated in the middle of two No. two lip oil sealings with No. two spacer rings
In upper seal support, No. two lip oil sealings are pressed in upper seal support by No. two oil sealing pressing plates, dormant bolt, it is upper close
Seat is sealed to seal by being formed between O-ring and shell；When mandrel drives upper connector and the rotation of dynamic sealing body, upper connector and
Dynamic sealing body and lip type oil sealing and rotary oil seal formation dynamic sealing, are monolithically fabricated the upper sealing of environmentally friendly closed rotating blowout preventer
Body.
The beneficial effects of the utility model are：Simple in construction, the firm and reliable connection of upper seal；The friction of rotary oil seal
Coefficient only has 1/3rd of lip type oil sealing, and frictional force between dynamic sealing body and rotary oil seal is reduced using rotary oil seal, drop
Low sealing surface wear between dynamic sealing body and rotary oil seal, substantially increases the service life of product, makes under balance pressure drilling
Work is more efficiently.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of I parts in Fig. 1.
In figure：1 mandrel, a No. 2 lip oil sealings, 3 baffle plates, a No. 4 oil sealing pressing plates, connector on 5,6 No. two lip oil sealings,
No. 7 spacer rings, 8 upper press covers, 9 shells, 10 dynamic sealing bodies, 11 rotary oil seals, 12 No. two oil sealing pressing plates, 13 No. two spacer rings, on 14
Seal receptacle.
Embodiment
Technical solutions of the utility model are further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, the upper seal of the environmentally friendly closed rotating blowout preventer include baffle plate 3, upper connector 5, on
Gland 8, lip oil sealing, dynamic sealing body 10, rotary oil seal 11, upper seal support 14, mandrel 1 and shell 9；The upper screw thread of connector 5 rotation
Enter on mandrel 1, baffle plate 3 is fixed on mandrel 1 by hexagon socket head cap screw and blocks upper connector 5, prevents connector 5 from mandrel
Disengaged on 1；Upper press cover 8 is sitting on shell 9 and connected together by hexagon socket head cap screw and shell, and upper connection is sealed up by O-ring
Sealing surface between body 5 and shell 9；Separated in upper press cover 8, led to a spacer ring 7 in the middle of two lip oil sealings 2
Cross an oil sealing pressing plate 4, dormant bolt a number lip oil sealing 2 is pressed in upper press cover 8, upper press cover 8 passes through a lip oil
Envelope 2 is sealed with the formation of upper connector 5；Dynamic sealing body 10 is arranged on mandrel 1, and is sealed by O-ring and the formation of mandrel 1；On
Seal receptacle 14, which is arranged on to have on the lower section of dynamic sealing body 10, the endoporus of upper seal support 14, installs rotary oil seal 11, two in groove, groove
Separated in the middle of No. two lip oil sealings 6 with No. two spacer rings 13 in upper seal support 14, pass through No. two oil sealing pressing plates 12, countersunk head spiral shell
No. two lip oil sealings 6 are pressed in upper seal support 14 by bolt, and upper seal support 14 is sealed by being formed between O-ring and shell 9；When
When mandrel 1 drives upper connector 5 and the rotation of dynamic sealing body 10, upper connector 5 and dynamic sealing body 10 and a lip type oil sealing 2, two
Number lip type oil sealing 6 and the formation dynamic sealing of rotary oil seal 11, are monolithically fabricated the upper seal of environmentally friendly closed rotating blowout preventer.
Claims (1)
1. the upper seal of environmentally friendly closed rotating blowout preventer, it is characterized in that：It includes baffle plate（3）, upper connector（5）, upper pressure
Lid（8）, lip oil sealing, dynamic sealing body（10）, rotary oil seal（11）, upper seal support（14）, mandrel（1）And shell（9）；Upper connection
Body（5）It is threaded into mandrel（1）On, baffle plate（3）Mandrel is fixed on by hexagon socket head cap screw（1）Go up and block connector（5）,
Prevent connector（5）From mandrel（1）It is upper to disengage；Upper press cover（8）It is sitting in shell（9）Go up and pass through hexagon socket head cap screw and shell company
Together, upper connector is sealed up by O-ring（5）And shell（9）Between sealing surface；Two lip oil sealings（2）It is middle
With a spacer ring（7）Separate installed in upper press cover（8）It is interior, pass through an oil sealing pressing plate（4）, dormant bolt is by a lip oil sealing
（2）It is pressed on upper press cover（8）It is interior, upper press cover（8）Pass through a lip oil sealing（2）With upper connector（5）Form sealing；Dynamic sealing
Body（10）Installed in mandrel（1）On, and pass through O-ring and mandrel（1）Form sealing；Upper seal support（14）Installed in dynamic sealing body
（10）Lower section, upper seal support（14）Have on endoporus and rotary oil seal is installed in groove, groove（11）, two No. two lip oil sealings（6）
It is middle with No. two spacer rings（13）Separate installed in upper seal support（14）It is interior, pass through No. two oil sealing pressing plates（12）, dormant bolt is by two
Number lip oil sealing（6）It is pressed on upper seal support（14）It is interior, upper seal support（14）Pass through O-ring and shell（9）Between formed sealing；
Work as mandrel（1）Connector in drive（5）With dynamic sealing body（10）During rotation, upper connector（5）With dynamic sealing body（10）With No. one
Lip type oil sealing（2）, No. two lip type oil sealings（6）And rotary oil seal（11）Dynamic sealing is formed, environmentally friendly closed rotation is monolithically fabricated anti-
The upper seal of spray apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121399.8U CN206530311U (en) | 2017-02-10 | 2017-02-10 | The upper seal of environmentally friendly closed rotating blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720121399.8U CN206530311U (en) | 2017-02-10 | 2017-02-10 | The upper seal of environmentally friendly closed rotating blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206530311U true CN206530311U (en) | 2017-09-29 |
Family
ID=59915961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720121399.8U Expired - Fee Related CN206530311U (en) | 2017-02-10 | 2017-02-10 | The upper seal of environmentally friendly closed rotating blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206530311U (en) |
-
2017
- 2017-02-10 CN CN201720121399.8U patent/CN206530311U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170929 Termination date: 20220210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |