CN207905733U - A kind of offshore oil gas well surface casing cementing ring flat-plate - Google Patents
A kind of offshore oil gas well surface casing cementing ring flat-plate Download PDFInfo
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- CN207905733U CN207905733U CN201820179858.2U CN201820179858U CN207905733U CN 207905733 U CN207905733 U CN 207905733U CN 201820179858 U CN201820179858 U CN 201820179858U CN 207905733 U CN207905733 U CN 207905733U
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- Prior art keywords
- protrusion
- ring flat
- connecting shaft
- semi
- oil gas
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Abstract
The utility model discloses a kind of offshore oil gas well surface casing cementing ring flat-plates, including two semi-circular rings, the both ends of the semi-circular ring are respectively provided with the protrusion radially stretched out, it is threaded through-hole on the protrusion, protrusion in two semi-circular rings includes two groups of face respectively, it is bolted between one group of protrusion facing each other, connecting shaft is set between another group of protrusion facing each other, the both ends of connecting shaft are separately connected two bearings, one end connecting screw of the bearing far from connecting shaft, the screw rod connected on two bearings is each passed through the tapped through hole on the protrusion of respective face, the screw rod matches with the tapped through hole.The purpose of this utility model is to provide a kind of offshore oil gas well surface casing cementing ring flat-plates, adjustment surface pipe centralizer takes time and effort when solving the problems, such as that offshore platform one opens operation in the prior art, realizes the purpose directly adjusted to the centralizer of surface pipe by ring flat-plate.
Description
Technical field
The utility model is related to offshore oil and gas drilling applications, and in particular to a kind of offshore oil gas well surface casing cementing ring flat-plate.
Background technology
Well cementation is directed to tripping in casing in well, and the construction work of cement is injected to the annular space between wellbore and casing
Industry.It is an indispensable important link during being drilled well operations, it includes setting of casing and cementing.Cementing technology is more
The comprehensive application technology of subject has the characteristics that systematicness, disposable and time are short.The main purpose of well cementation is protection and support
Casing in oil/gas well, the stratum such as packing oil, gas and water.For offshore drilling engineering, since engineering department leads in erection
Riser pipe will be hammered when pipe support and enters mud, therefore unlike Terrestrial casing, surface pipe in offshore drilling engineering
It is tripping in riser pipe.Meanwhile domestic each offshore oilfield advocates " excellent fast " work pattern energetically at present, for surface layer
For one opens operation, after work pattern is tripping in surface pipe, ring flat-plate is set on riser pipe, by table in well head chain-wales seat
The box cupling of layer casing, which is placed on ring flat-plate, to be carried, and dismantles surface pipe from the box cupling on ring flat-plate later, you can adjustment is bored
The cantilever beam and derrick location of well platform carry out the operation of next well, while being carried out using Simple cement head in well head chain-wales
Surface casing cementing operation, to realize a large amount of savings of duration.Such work pattern has been that current domestic offshore production well batch bores
Conventional exploitation pattern, in such work pattern, ring flat-plate need seat on riser pipe simultaneously surface pipe is kept, therefore
The concentric rate of the height of ring flat-plate installation accuracy, ring flat-plate and riser pipe will have a direct impact on the centralizer of surface pipe, Jin Eryan
Rate is returned on cement mortar when ghost image rings surface pipe well cementation, if the adjustment of ring flat-plate position is bad, is very easy to that surface pipe is caused to be cemented the well
Ineffective, this is for the cluster well of offshore production platform, in some instances it may even be possible to which phenomena such as causing cement mortar to alter slot occurs, and is well
The accident of touching buries security risk.In view of the above-mentioned problems, when being all present ring flat-plate in the prior art, in well head chain-wales by two and half
The ring plate of circular ring type is fixed composition ring flat-plate seat and is embraced on riser pipe, by surface pipe, then passes through guide chain (hand by several workers
Dynamic cucurbit) it is wrapped on surface pipe and is pulled, so as to adjust the centralizer of surface pipe, drive ring flat-plate to occupy by surface pipe
In it is in place.But this adjustment mode is needed to expend a large amount of manpower and could be completed, while it is also desirable to find at the scene it is suitable
The place of fixed guide chain, cause inefficiency, take it is very long.
Utility model content
The purpose of this utility model is to provide a kind of offshore oil gas well surface casing cementing ring flat-plates, to solve in the prior art
The problem of surface pipe centralizer takes time and effort is adjusted when offshore platform one opens operation, realizes the residence to surface pipe by ring flat-plate
The purpose that moderate is directly adjusted.
The utility model is achieved through the following technical solutions：
A kind of offshore oil gas well surface casing cementing ring flat-plate, including two semi-circular rings, the both ends of the semi-circular ring are all provided with
The protrusion radially stretched out is set, through-hole is threaded on the protrusion, the protrusion in two semi-circular rings includes
Two groups of face respectively, be bolted between one group of protrusion facing each other, another group of protrusion facing each other it
Between connecting shaft is set, the both ends of connecting shaft are separately connected two bearings, one end connecting screw of the bearing far from connecting shaft, two
The screw rod connected on a bearing is each passed through the tapped through hole on the protrusion of respective face, the screw rod and the tapped through hole
Match.
The problem of surface pipe centralizer takes time and effort, this reality are adjusted when opening operation for offshore platform one in the prior art
With a kind of offshore oil gas well surface casing cementing ring flat-plate of novel proposition, the ring flat-plate of the utility model also includes two semi-circular rings, and two
A semi-circular ring collectively forms ring flat-plate for seat in riser pipe, and the both ends of semi-circular ring, which are respectively provided with, radially to be stretched out
Protrusion, existing ring flat-plate are that two groups of protrusions of two semi-circular rings are facing each other and then are bolted.And this
In utility model between two semi-circular rings only have one group of protrusion be bolted, another group by bearing, connecting shaft into
Row connection.Specifically, on two protrusions facing each other respectively by two screw rods pass through respective tapped through hole, two
Screw rod one end facing each other respectively connects a bearing, then is connected two bearings by connecting shaft.Due to two axis
The presence held, therefore a screw rod can carry out opposite rotation relative to another screw rod, the rotation of two screw rods is respectively independent
It does not interfere with each other, and connecting shaft plays important connection function wherein.When the utility model is used, first that bolt and screw rod is equal
It removes so that two semi-circular rings are sleeved on surface pipe, connect one group of protrusion being bolted later, then will be another
Screw rod screw-in on outer one group of protrusion is attached with bearing, and the common jarring tools of engineering sites such as hammer can be used herein
It is realized, also can additionally configure a hydraulic push rod and realize more convenient quick connection.Then observable judges surface layer later
The degree of eccentricity of the situation placed in the middle of casing, direction residing for which screw rod is excessive, then rotates the side screw rod while using tools such as pipe wrench
Other side screw rod is gripped, since screw rod and tapped through hole match, and under the action of two bearings and connecting shaft, screw rod
It can not be moved along own axes direction, therefore with the rotation to screw rod, the protrusion that the screw rod is passed through is driven to carry out
Linear movement, to drive the side semi-circular ring to be moved, to be pushed to surface pipe so that surface pipe and ring
Plate is all gradually placed in the middle to be stablized.The utility model by rotate two semi-circular rings specific orientation, can in any direction on
The centralizer of surface pipe is adjusted, can simply and easily be carried out hence for the bias of surface pipe any direction
It corrects and adjusts, overcome and need to find guide chain different fixed points for different orientation in the prior art, be awkward,
Often there are certain orientation the bad connection guide chain on well head chain-wales the problem of；The utility model only needs rotation screw rod i.e. simultaneously
It can be adjusted, pull guide chain without more people, greatly reduce manpower consumption, also reduce adjustment surface pipe centralizer
The required time has substantive distinguishing features outstanding and significant progress compared to the prior art.
Preferably, the both ends of the connecting shaft are connected in the inner ring of two bearings.Axis connection is connected in this programme
In bearing inner ring, therefore two screw rods are connected on the outer shroud of two bearings, improve the structural stability of the utility model.
Preferably, several fixture blocks being uniformly distributed circumferentially also are fixed in the semi-circular ring bottom surface.The fixture block is for blocking
It is located at the outside of riser pipe, since each fixture block annular is uniformly distributed, when each fixture block fits with riser pipe lateral wall
When, entire ring flat-plate is also just placed centrally, therefore the setting that this programme passes through fixture block, additionally it is possible to the placement feelings of two semi-circular rings
Condition carries out auxiliary judgment, and situation placed in the middle is quickly confirmed convenient for worker.
Preferably, the fixture block is wedge block, the center of circle of a side plane face semi-circular ring of the wedge block.Pass through wedge
One side plane in the shape block face semi-circular ring center of circle, makes the plane be resisted against the outer surface of riser pipe in the operating condition, makes
Between fixture block and riser pipe for line contact and non-face contact, to greatly improve when the utility model is used to semicircular ring
The rotation adjustment capability of body, consequently facilitating flexibly adjustment cylinder direction, the placed in the middle of surface pipe is adjusted to more flexible
Degree.
Preferably, the connecting shaft is made by cemented carbide material.The intensity and bearing capacity of connecting shaft are improved, really
Protecting connecting shaft when grouting weight is larger inside surface pipe can also be carried, and the safety in utilization of the utility model is improved.
Preferably, several reinforcing ribs are fixed in the connecting shaft.The intensity and bearing capacity of connecting shaft are improved, safety is improved
With stability.
The utility model compared with prior art, has the following advantages and advantages：
1, a kind of offshore oil gas well surface casing cementing ring flat-plate of the utility model, under the action of two bearings and connecting shaft,
Screw rod can not be moved along own axes direction, therefore with the rotation to screw rod, the protrusion for driving the screw rod to be passed through
It moves linearly, to drive the side semi-circular ring to be moved, to be pushed to surface pipe so that surface pipe
It is all gradually placed in the middle stable with ring flat-plate.
2, a kind of offshore oil gas well surface casing cementing ring flat-plate of the utility model, by the specific side for rotating two semi-circular rings
Position, can in any direction on the centralizer of surface pipe is adjusted, hence for the inclined of surface pipe any direction
The heart simply and easily can be modified and adjust, and overcome and need to find guide chain for different orientation in the prior art
Different fixed points, is awkward, and occurs certain orientation often the bad connection guide chain on well head chain-wales the problem of.
3, a kind of offshore oil gas well surface casing cementing ring flat-plate of the utility model, it is only necessary to rotating screw rod can be adjusted,
Guide chain is pulled without more people, greatly reduces manpower consumption, also reduces the time needed for adjustment surface pipe centralizer, phase
There is substantive distinguishing features outstanding and significant progress compared with the prior art.
Description of the drawings
Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：
Fig. 1 is the upward view of the utility model specific embodiment；
Fig. 2 is the partial enlarged view at A in Fig. 1；
Fig. 3 is the outside schematic diagram of a semi-circular ring in the utility model specific embodiment.
Label and corresponding parts title in attached drawing：
1- semi-circular rings, 2- protrusions, 3- bolts, 4- connecting shafts, 5- bearings, 6- screw rods, 7- tapped through holes, 8- fixture blocks,
9- reinforcing ribs.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1：
A kind of offshore oil gas well surface casing cementing ring flat-plate as shown in Figure 1 to Figure 3, including two semi-circular rings 1, described half
The both ends of torus 1 are respectively provided with the protrusion 2 radially stretched out, are threaded through-hole 7 on the protrusion 2, and two and half
Protrusion 2 on torus 1 includes two groups of face respectively, is connected by bolt 3 between one group of protrusion 2 facing each other,
Connecting shaft 4 is set between another group of protrusion 2 facing each other, and the both ends of connecting shaft 4 are separately connected two bearings 5, the axis
5 one end connecting screws 6 far from connecting shaft 4 are held, the screw rod 6 connected on two bearings 4 is each passed through the protrusion 2 of respective face
On tapped through hole 7, the screw rod 6 matches with the tapped through hole 7.The both ends of the connecting shaft 4 are connected to two
In the inner ring of bearing 5.Several fixture blocks 8 being uniformly distributed circumferentially also are fixed in the bottom surface of the semi-circular ring 1.The fixture block 8 is
Wedge block, the center of circle of a side plane face semi-circular ring 1 of the wedge block.The connecting shaft 4 is made by cemented carbide material
It forms.Several reinforcing ribs 9 are fixed in the connecting shaft 4.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of offshore oil gas well surface casing cementing ring flat-plate, including two semi-circular rings (1), the both ends of the semi-circular ring (1)
It is respectively provided with the protrusion (2) radially stretched out, through-hole (7), two semi-circular rings are threaded on the protrusion (2)
(1) protrusion (2) on includes two groups of face respectively, which is characterized in that is passed through between one group of protrusion facing each other (2)
Bolt (3) connects, and setting connecting shaft (4) between another group of protrusion facing each other (2), the both ends of connecting shaft (4) connect respectively
Connect two bearings (5), one end connecting screw (6) of the bearing (5) far from connecting shaft (4), the spiral shell connected on two bearings (5)
Bar (6) is each passed through the tapped through hole (7) on the protrusion (2) of respective face, the screw rod (6) and the tapped through hole (7)
Match.
2. a kind of offshore oil gas well surface casing cementing ring flat-plate according to claim 1, which is characterized in that the connecting shaft
(4) both ends are connected in the inner ring of two bearings (5).
3. a kind of offshore oil gas well surface casing cementing ring flat-plate according to claim 1, which is characterized in that the semi-circular ring
(1) several fixture blocks (8) being uniformly distributed circumferentially also are fixed in bottom surface.
4. a kind of offshore oil gas well surface casing cementing ring flat-plate according to claim 3, which is characterized in that the fixture block (8)
For wedge block, the center of circle of a side plane face semi-circular ring (1) of the wedge block.
5. a kind of offshore oil gas well surface casing cementing ring flat-plate according to claim 1, which is characterized in that the connecting shaft
(4) it is made by cemented carbide material.
6. a kind of offshore oil gas well surface casing cementing ring flat-plate according to claim 1, which is characterized in that the connecting shaft
(4) several reinforcing ribs (9) are fixed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179858.2U CN207905733U (en) | 2018-02-01 | 2018-02-01 | A kind of offshore oil gas well surface casing cementing ring flat-plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820179858.2U CN207905733U (en) | 2018-02-01 | 2018-02-01 | A kind of offshore oil gas well surface casing cementing ring flat-plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207905733U true CN207905733U (en) | 2018-09-25 |
Family
ID=63561906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820179858.2U Expired - Fee Related CN207905733U (en) | 2018-02-01 | 2018-02-01 | A kind of offshore oil gas well surface casing cementing ring flat-plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207905733U (en) |
-
2018
- 2018-02-01 CN CN201820179858.2U patent/CN207905733U/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: 20180925 Termination date: 20190201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |