CN207813571U - A kind of cementing cement head - Google Patents
A kind of cementing cement head Download PDFInfo
- Publication number
- CN207813571U CN207813571U CN201820221414.0U CN201820221414U CN207813571U CN 207813571 U CN207813571 U CN 207813571U CN 201820221414 U CN201820221414 U CN 201820221414U CN 207813571 U CN207813571 U CN 207813571U
- Authority
- CN
- China
- Prior art keywords
- upper shell
- shell
- inlet pipe
- cementing
- fixedly mounted
- 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
Links
Landscapes
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model discloses a kind of cementing cement head, main contents are：The lower contact is fixedly mounted on the bottom of lower shell by union nut, lower shell is fixedly mounted on the bottom of upper shell, mounting cylinder is fixedly mounted in the radially installed hole of upper shell right side, spiral backing pin is mounted in the centre bore of mounting cylinder, head cover is fixedly mounted on the top of upper shell, upper shell left side is equipped with upper inlet pipe close to top, upper plug valve is mounted on upper inlet pipe, upper shell left side is equipped with lower inlet pipe close to bottom, lower plug valve is mounted on lower inlet pipe, union connector is connect with lower plug valve and upper plug valve respectively by casing, cementing plug is mounted in the centre bore of upper shell, balance pipe is mounted in upper shell, indicator is fixedly mounted on the bottom of balance pipe.The utility model eliminates negative-pressure ward by balance pipe, increases the safety used, and rubber plug drop member easy to operation judges whether rubber plug has passed through.
Description
Technical field
The utility model is related to cementing technology fields, specifically, more particularly to a kind of cementing cement head.
Background technology
In recent years, with the increasingly normalization of drilling engineering, quality and use to cementing cement head propose higher
It is required that.The cementing head wellhead assembly important as a kind, the reasonability of structure, the effect of the reliability of quality concerning well cementing operation
Rate and success or failure.
Existing cementing cement head has the following problems：(1) many external connection holes are provided in cementing head main body, in tapping
There is stress concentrations, very big for the strength reduction of main body, meanwhile, pad, the screwed connection point of the product are more, are easy
The weak spot to break down is more；(2) installation connection is complicated, can not eliminate negative-pressure adsorption problem, increase the danger of cementing head
Property；(2) there is no rubber plug indicator, can not judge whether rubber plug passes through.
Utility model content
The technical problem to be solved by the utility model is to the deficiencies in for the above-mentioned prior art, disclose a kind of solid
Well cement head eliminates negative-pressure ward by balance pipe, increases the safety used, and rubber plug drop is easy to operation
Member judges whether rubber plug has passed through.
Technical solution adopted by the utility model to solve its technical problems is：A kind of cementing cement head, including lower contact,
Union nut, indicator, lower inlet pipe, lower plug valve, upper shell, union connector, casing, upper plug valve, upper inlet pipe, balance
Pipe, head cover, cementing plug, spiral backing pin, mounting cylinder and lower shell, the lower contact are fixedly mounted on lower cylinder by union nut
The bottom of body, the lower shell are fixedly mounted on the bottom of upper shell, and the mounting cylinder is fixedly mounted on upper shell right side
In radially installed hole, the spiral backing pin is mounted in the centre bore of mounting cylinder, and the head cover is fixedly mounted on the top of upper shell
End, the upper shell left side are equipped with upper inlet pipe close to top, and the upper plug valve is mounted on upper inlet pipe, it is described on
Cylinder left side is equipped with lower inlet pipe close to bottom, and the lower plug valve is mounted on lower inlet pipe, and the union connector is logical
It crosses casing to connect with lower plug valve and upper plug valve respectively, the cementing plug is mounted in the centre bore of upper shell and spiral is kept off
Pin tail portion is withstood on the bottom surface of cementing plug, and the balance pipe is mounted in upper shell, and the indicator is fixedly mounted on balance
The bottom of pipe.
As a kind of preferred embodiment of the utility model, the outer surface in upper shell bottom centre hole and lower shell
Between sealing ring is installed.
As a kind of preferred embodiment of the utility model, the outer surface of the lower shell and the centre bore of union nut
Between sealing ring is installed.
As a kind of preferred embodiment of the utility model, the center of the external cylindrical surface and mounting cylinder of the spiral backing pin
Sealing ring is installed between hole.
There are one the ready-packaged joints of union form to be connected with casing for the bottom of the utility model cementing head；Intermediate upper cylinder
Body is used for installing rubber plug, and rubber plug vessel is designed to 1 or 2, meets various forms of cementing requirements；Spiral backing pin is used for blocking
Rubber plug；Whether rubber plug drop is used to refer to rubber plug by cementing head sleeve pipe；The head cover for opening top, can be by glue
Plug is packed into cementing head；Union connector is used for being connected with for slurry pipeline with cementing pipeline；Pressure-equalizing pipe is used for balancing note
The pressure of rubber plug upper and lower end face during cement.
The structure type of union connector is similar to the movable joint in water heating pipe fittings, and union nut uses big screw pitch trapezoidal thread,
It is convenient to mount and dismount.One of sealing ring, sealed reliable are housed at the conical surface that pin and box sub combines.There is following benefit:(1) cementing head
Main body and lower contact partial installation, it is easier for installation compared with the cementing head direct-connected with casing；(2) cementing head union interface is adjustable
It is whole to arrive any direction convenient for pipeline connection, avoid the trouble of Ground arrangement and pipeline adjustment；It (3) can be in circulation of drilling fluid
Use mating, small and exquisite, nimble circulating connection.Balance pipe is connected to the upper and lower ends of cylinder, and the upper and lower end face of rubber plug is made to keep
Pressure balance.In Process of Cementing, due to the rapidly whereabouts of cement, vacuum is easily formed in the lower face of rubber plug, the two of rubber plug
End face forms huge pressure difference.This pressure acts on backing pin, easily causes the damage of backing pin.The setting of balance pipe is from basic
On prevented the generation of such case.
The utility model has the following advantages compared with prior art：Balance pipe eliminates negative-pressure ward, increases use
Safety；Possess rubber plug drop, member easy to operation judges whether rubber plug has passed through；When using mating manifold, it can lead to
The various well cementing operations of opening and closing completion for crossing plug valve improve well cementation efficiency without pipeline is disassembled and installed in well cementing process,
Increase safety and the comfort of operation.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of the utility model.
Reference sign：
1：Lower contact, 2：Union nut, 3：Indicator, 4：Lower inlet pipe, 5：Lower plug valve, 6：Upper shell, 7：Union connects
Head, 8：Casing, 9：Upper plug valve, 10：Upper inlet pipe, 11：Balance pipe, 12：Head cover, 13：Cementing plug, 14：Spiral backing pin,
15：Mounting cylinder, 16：Lower shell.
Specific implementation mode
Specific embodiment of the present invention is described with reference to the accompanying drawings and embodiments：
It should be noted that structure, ratio, the size etc. illustrated in this specification institute attached drawing, only coordinating explanation
It is enforceable to be not limited to the utility model so that those skilled in the art understands and reads for the revealed content of book
Qualifications, the modification of any structure, the change of proportionate relationship or the adjustment of size, can be generated not influencing the utility model
The effect of and the purpose that can reach under, should all still fall and obtain the range that can cover in the revealed technology contents of the utility model
It is interior.
Meanwhile cited such as "upper" in this specification, "lower", "left", "right", " centre " and " one " term, also
Only being illustrated for ease of narration, rather than to limit the enforceable range of the utility model, relativeness is altered or modified,
In the case where changing technology contents without essence, when being also considered as the enforceable scope of the utility model.
As shown in Figure 1, it illustrates specific embodiment of the present utility model；As shown, disclosed by the utility model
A kind of cementing cement head, including lower contact 1, union nut 2, indicator 3, lower inlet pipe 4, lower plug valve 5, upper shell 6, union
Connector 7, casing 8, upper plug valve 9, upper inlet pipe 10, balance pipe 11, head cover 12, cementing plug 13, spiral backing pin 14, mounting cylinder
15 and lower shell 16, the lower contact 1 is fixedly mounted on the bottom of lower shell 16 by union nut 2, and the lower shell 16 is solid
Dingan County is mounted in the bottom of upper shell 6, and the mounting cylinder 15 is fixedly mounted in the radially installed hole of 6 right side of upper shell, described
Spiral backing pin 14 is mounted in the centre bore of mounting cylinder 15, and the head cover 12 is fixedly mounted on the top of upper shell 6, the upper cylinder
6 left side of body is equipped with upper inlet pipe 10 close to top, and the upper plug valve 9 is mounted on upper inlet pipe 10, the upper shell 6
Left side is equipped with lower inlet pipe 4 close to bottom, and the lower plug valve 5 is mounted on lower inlet pipe 4, and the union connector 7 is logical
Casing 8 is crossed to connect with lower plug valve 5 and upper plug valve 9 respectively, the cementing plug 13 be mounted on upper shell 6 centre bore in and
14 tail portion of spiral backing pin is withstood on the bottom surface of cementing plug 13, and the balance pipe 11 is mounted in upper shell 6, the indicator 3
It is fixedly mounted on the bottom of balance pipe 11.
Preferably, sealing ring is installed between 6 bottom centre hole of the upper shell and the outer surface of lower shell 16.
Preferably, sealing ring is installed between the outer surface of the lower shell 16 and the centre bore of union nut 2.
Preferably, sealing ring is installed between the external cylindrical surface and the centre bore of mounting cylinder 15 of the spiral backing pin 14.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the utility model is not limited to
The above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
It is made a variety of changes under the premise of objective.
Many other changes and modifications may be made without departing from the spirit and scope of the utility model.It should be appreciated that this reality
It is not limited to specific embodiment with novel, the scope of the utility model is defined by the following claims.
Claims (4)
1. a kind of cementing cement head, it is characterised in that：Including lower contact, union nut, indicator, lower inlet pipe, lower plug valve,
Upper shell, union connector, casing, upper plug valve, upper inlet pipe, balance pipe, head cover, cementing plug, spiral backing pin, mounting cylinder and
Lower shell, the lower contact are fixedly mounted on the bottom of lower shell by union nut, and the lower shell is fixedly mounted on cylinder
The bottom of body, the mounting cylinder are fixedly mounted in the radially installed hole of upper shell right side, and the spiral backing pin is mounted on peace
In the centre bore of fitted tube, the head cover is fixedly mounted on the top of upper shell, and the upper shell left side is equipped with close to top
Upper inlet pipe, the upper plug valve are mounted on upper inlet pipe, and the upper shell left side is equipped with lower inlet pipe close to bottom,
The lower plug valve is mounted on lower inlet pipe, and the union connector is connected with lower plug valve and upper plug valve respectively by casing
It connects, the cementing plug is mounted in the centre bore of upper shell and spiral backing pin tail portion is withstood on the bottom surface of cementing plug, described
Balance pipe is mounted in upper shell, and the indicator is fixedly mounted on the bottom of balance pipe.
2. a kind of cementing cement head as described in claim 1, it is characterised in that：Upper shell bottom centre hole and lower shell
Outer surface between sealing ring is installed.
3. a kind of cementing cement head as described in claim 1, it is characterised in that：The outer surface of the lower shell and union nut
Centre bore between sealing ring is installed.
4. a kind of cementing cement head as described in claim 1, it is characterised in that：The external cylindrical surface of the spiral backing pin and installation
Sealing ring is installed between the centre bore of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221414.0U CN207813571U (en) | 2018-02-08 | 2018-02-08 | A kind of cementing cement head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221414.0U CN207813571U (en) | 2018-02-08 | 2018-02-08 | A kind of cementing cement head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207813571U true CN207813571U (en) | 2018-09-04 |
Family
ID=63321005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820221414.0U Expired - Fee Related CN207813571U (en) | 2018-02-08 | 2018-02-08 | A kind of cementing cement head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207813571U (en) |
-
2018
- 2018-02-08 CN CN201820221414.0U patent/CN207813571U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100532779C (en) | Intelligent drilling rod compensation-type electric joint | |
| CN201310305Y (en) | Screw thread connecting structure of oil pipe for oil well or sleeve of gas well | |
| CN207813571U (en) | A kind of cementing cement head | |
| CN205908795U (en) | Can dismantle valve seat seal structure reaches track ball valve including this seal structure | |
| CN105782138B (en) | Pressure vessel with utricule accumulator | |
| CN109027471A (en) | A kind of easy centering pressure-proof flange | |
| CN101725739B (en) | Electromagnetic control valve device for flow measurement control | |
| CN206449205U (en) | Novel oil production tubing string connecting valve | |
| CN208442357U (en) | A kind of petroleum valve for shipboard operation | |
| CN108980476B (en) | A kind of oil field multilayer is exempted to survey accurate water filling device | |
| CN207776810U (en) | A kind of production casing | |
| CN205950554U (en) | Corrugated pipe clamp | |
| CN203051758U (en) | Seal ring | |
| CN206352678U (en) | Cage pressure maintaining valve for stablizing pipeline internal medium pressure | |
| CN109630035A (en) | A kind of sulfur resistant drill pipe | |
| CN107990031A (en) | A kind of backflow preventer | |
| CN208719621U (en) | A kind of easy centering pressure-proof flange | |
| CN207777692U (en) | A kind of backflow preventer | |
| CN206772563U (en) | downhole tool oil immersion simulation test device | |
| CN208668578U (en) | A kind of universal floor drain joint | |
| CN207161919U (en) | High-pressure air pipe joint | |
| CN208793878U (en) | A kind of stable type pipeline connection transfer connector | |
| CN206801484U (en) | Petroleum pipeline pipe nipple | |
| CN206625815U (en) | A kind of anti-leak thermal extraction casing head | |
| CN206174882U (en) | Oil jacket pipe with thread form |
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: 20180904 Termination date: 20210208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |