CN2375757Y - Releasing platform - Google Patents
Releasing platform Download PDFInfo
- Publication number
- CN2375757Y CN2375757Y CN 98243915 CN98243915U CN2375757Y CN 2375757 Y CN2375757 Y CN 2375757Y CN 98243915 CN98243915 CN 98243915 CN 98243915 U CN98243915 U CN 98243915U CN 2375757 Y CN2375757 Y CN 2375757Y
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- unfreezing
- main body
- oil cylinders
- lifting
- 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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Abstract
The utility model discloses a novel releasing platform with hydraulic oil cylinders. A left and a right sides below a rotating disk which is arranged on a drill floor main body of the original XJ-350I type service machine are additionally provided with the two hydraulic oil cylinders, and the oil cylinders are connected with two lug bosses through bases. The two lug bosses are positioned on a drill floor base. Lifting beams are arranged on the two hydraulic oil cylinders, and the lifting beams and the oil cylinder bases are provided with taper holes. The drill floor main body is additionally provided with a set of lifting hydraulic control systems, which are connected with the hydraulic oil cylinders through a hydraulic power system or other hydraulic power sources of a host machine to provide power. Indicated by experiments, 2000kN lifting capability can be increased newly through the technical reconstructions. The utility model is suitable for the requirements of release and sleeve pipe shift for an oil or water well of an oil field.
Description
The utility model relates to a kind of oil field development machinery workover rig, particularly a kind of oil-water well unfreezing or pull out casing bit.
At present, the oil field generally adopts the hook on the workover rig derrick to realize to oil-water well overhaul unfreezing the time, what generally use now is workover rig below 100 tons, but its unfreezing ability is not enough, finish the unfreezing task, just must purchase the large-tonnage workover rig, generally will be more than 120 tons, its price is very expensive, simultaneously if adopt the large-tonnage workover rig, when not needing to promote unfreezing energetically, there is superfluous problem in its engine power, has caused unnecessary waste.Simultaneously, adopt hook to promote unfreezing, must consider the intensity of workover rig derrick and earth anchor, particularly when the unfreezing pull-off, its derrick hook often produces stronger vibration, and safety is relatively poor.
The purpose of this utility model is exactly to transform on the basis of original workover rig, and a kind of safe in utilization, stable operation is provided, the oil-water well unfreezing platform that the unfreezing ability is strong.
Key problem in technology point of the present utility model is: set up the all-hydraulic lift-up device of a cover on the rig floor main body, carried out the jacking unfreezing by hydraulic control system control hydraulic jack.Main embodiment is: two hydraulic jacks are set up in the left and right sides below the rotating disk on the rig floor main body, two hydraulic jacks are by the cylinder pedestal connection that links to each other with two boss on being positioned at the rig floor base, on two hydraulic jacks lifting beam is housed, all have out a bellmouth on lifting beam and the cylinder pedestal, so that when needs clamping drilling rod or sleeve pipe, put into slips.Two hydraulic jacks link to each other with hydraulic system or other hydraulic power supply on the workover rig main frame, for it provides pressure, drive two hydraulic jacks well head inner oil tube or sleeve pipe are carried out the jacking unfreezing, on the rig floor main body, set up a cover jacking hydraulic control system, the lifting of two hydraulic jacks of control.
The utility model is to transform to finish on the basis of original workover rig, saved the expense of purchasing new workover rig, easily realize again simultaneously, utilize the host hydraulic system source that is used as power, drive hydraulic jack jacking unfreezing, newly-increased unfreezing ability reaches 2000kN, has satisfied the needs of unfreezing in producing, and has realized dried big the living of little machine.Adopt the hydraulic lifting unfreezing, safe in utilization, easy and simple to handle.
Fig. 1: the unfreezing main platform body schematic diagram that has hydraulic jack.
Fig. 2: the unfreezing platform partial schematic diagram that has hydraulic jack.
The utility model is elaborated below in conjunction with accompanying drawing.As shown in Figure 1 and Figure 2, the utility model is transformed realization on original 60 tons of workover rig XJ-350I bases, its main transformation point is: set up the all-hydraulic lift-up device of a cover on rig floor main body 1, utilize hydraulic system on the main frame 6 source that is used as power, by newly-increased jacking hydraulic control system 7, control hydraulic jack 2 carries out the jacking unfreezing, realizes the unfreezing ability of newly-increased 2000kN.Concrete technical scheme is: two boss 4 are installed in the left and right sides below the rotating disk 9 of rig floor main body 1, are used for support hydraulic pressure cylinder pedestal 5 and two hydraulic jacks 2, and the cylinder pedestal 5 of hydraulic jack 2 below it connects as one with boss 4.On two hydraulic jack 2 piston rods lifting beam 8 is housed, the centre of lifting beam 8 and hydraulic jack base 5 respectively is provided with a taper hole, is used for putting into when needs clamping drilling rod or sleeve pipe lower slips 10,11.Lifting beam 8 and piston rod adopt removably to connect, when not needing to carry out unfreezing, pull down it so long, and hydraulic jack 2 is recoverable to the rig floor main body 1 below the plane, and platform can normally carry out other workover treatment with main frame 6 at this moment.Be provided with 6 tops around two boss 4 and transfer bolt 3, be used for two hydraulic jacks 2 are finely tuned, to guarantee to install the taper hole and the well head center of slips.Hydraulic jack 2 links by snap joint, high-pressure rubber pipe and workover rig host hydraulic system, provides the drive power source hydraulic jack 2 jacking unfreezings by host hydraulic system.The newly-increased hydraulic control system 7 that expands a cover lift-up device on rig floor main body 1, mainly form by parts such as switching valve, pressure regulator valve, pressure meters, can select operating hydraulically operated tong systems or handle jacking unfreezing operating system by switching valve, when selecting jacking unfreezing operation, the pressure oil of workover rig hydraulic system drives jacking cylinder through selector valve and carries out the jacking operation.In this system, the operating pressure of overflow valve hydraulic system when regulating the lift-up device operation, the changing value of two pressure meters pressure before and after down-hole casing cuts off in order to the set pressure that shows overflow valve respectively with when showing tube drawing.Rise or descend by hand-operated direction valve control jacking cylinder, when this valve was in meta, by the effect of hydraulic control one-way valve, lifting beam can be parked in the optional position.One-way throttle valve makes it slow, steady, reliable in order to the speed of control hydraulic jack lifting, and The whole control partly is installed on the console, compact conformation, easy to operate, adopt snap joint to connect between control oil channel and the lifting beam, dismounting is simple, keeps in repair easy.
In order to guarantee that improved XJ-350I type workover rig can be fit to change the demand that expands the back hydraulic system, enlarged the capacity of the hydraulic oil container of main frame 6 simultaneously, reinforced rig floor main body 1 framework.When the needs unfreezing, hydraulic jack 2 is risen on the rig floor main body 1 more than the plane, load onto lifting beam 8, in the bellmouth of lifting beam 8, put into upper slips 10, clamp drilling rod, make hydraulic jack 2 up, promote unfreezing.When hydraulic jack 2 rises to limit and can not unfreezing finish man-hour, can in the bellmouth of cylinder pedestal 5, put into lower slips 11, make lower slips 11 clamp drilling rod, handle reversal valve this moment makes hydraulic jack 2 descending, when lifting beam 8 drops to after bottom dead center, allow upper slips block drilling rod and continue jacking,, just can reach the purpose of jacking unfreezing by jacking so repeatedly.
Claims (4)
1, a kind of novel unfreezing platform, comprise the rig floor main body, it is characterized in that, two hydraulic jacks (2) are set up in the left and right sides, rotating disk (9) below on rig floor main body (1), two hydraulic jacks (2) are connected with two boss (4) on being positioned at the rig floor base by cylinder pedestal (5), lifting beam (8) is housed on two hydraulic jacks (2), all has a bellmouth on lifting beam (8) and the cylinder pedestal (5), on the rig floor main body, set up a cover jacking hydraulic control system (7).
2, unfreezing platform as claimed in claim 1 is characterized in that respectively being provided with on described two boss (4) one group of top and transfers bolt (3).
3, unfreezing platform as claimed in claim 1 is characterized in that described jacking hydraulic control system (7) mainly is made up of switching valve, overflow valve, reversal valve, choke valve, pressure meter.
4, unfreezing platform as claimed in claim 1 is characterized in that described lifting beam (8) is dismountable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243915 CN2375757Y (en) | 1998-12-22 | 1998-12-22 | Releasing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98243915 CN2375757Y (en) | 1998-12-22 | 1998-12-22 | Releasing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2375757Y true CN2375757Y (en) | 2000-04-26 |
Family
ID=33990200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98243915 Expired - Fee Related CN2375757Y (en) | 1998-12-22 | 1998-12-22 | Releasing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2375757Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220850A (en) * | 2010-11-04 | 2011-10-19 | 中国海洋石油总公司 | Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform |
| CN102434170A (en) * | 2010-09-29 | 2012-05-02 | 上海尤加工程机械科技有限公司 | Air bag piston stretching device of pipe connecting device for slurry shield |
-
1998
- 1998-12-22 CN CN 98243915 patent/CN2375757Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434170A (en) * | 2010-09-29 | 2012-05-02 | 上海尤加工程机械科技有限公司 | Air bag piston stretching device of pipe connecting device for slurry shield |
| CN102220850A (en) * | 2010-11-04 | 2011-10-19 | 中国海洋石油总公司 | Oil pipeline hydraulic jacking releasing device for well repair of offshore oil and gas production platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |