CN104879076A - Portable pipe shifting mechanism for pipe rod lifting device in well repair work - Google Patents
Portable pipe shifting mechanism for pipe rod lifting device in well repair work Download PDFInfo
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- CN104879076A CN104879076A CN201510245479.XA CN201510245479A CN104879076A CN 104879076 A CN104879076 A CN 104879076A CN 201510245479 A CN201510245479 A CN 201510245479A CN 104879076 A CN104879076 A CN 104879076A
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- China
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- rotating shaft
- shift fork
- lifting device
- workover treatment
- treatment pipe
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Abstract
The invention provides a portable pipe shifting mechanism for a pipe rod lifting device in the well repair work. The mechanism comprises an upper supporting seat (4) and a shifting fork assembly, wherein the shifting fork assembly is detachably connected with a first rotating shaft (9) of the upper supporting seat (4); when one end of a shifting fork (1) is connected with one end of the first rotating shaft (9), a driving part can drive the other end of the shifting fork (1) to clockwise upwards rotate around the first rotating shaft (9); when the one end of the shifting fork (1) is connected with the other end of the first rotating shaft (9), the driving part can drive the other end of the shifting fork (1) to anticlockwise upwards rotate around the first rotating shaft (9). With the adoption of the mechanism, the tasks of drawing and throwing pipes of pipe rods (including pipe columns) can be achieved well; the mechanism is detachable, so that the transportation is convenient; the mechanism can be mounted at both sides of the pipe rod lifting device in the well repair work; the field applicability is high; meanwhile, the labor intensity of workers in well repair can be reduced.
Description
Technical field
The present invention relates to oil well technical field, particularly a kind of portable tube pulling mechanism used on workover treatment pipe bar lifting device.
Background technology
Need in workover treatment process to carry out a large amount of removing, discharging operation to sucker rod, sleeve pipe and oil pipe, particularly removing in process, needing repeatedly to repeat pipe bar (comprising tubing string) rountrip.Pipe bar rountrip not only spends a large amount of time, and labour intensity is large, and security risk is high.At present, the tube drawing between the pipe bar lifting device used in workover treatment process and pipe bridge and get rid of the mode that pipe usually adopts workman's manual handling, the shortcoming of this operating type is that the labour intensity of well workover workman is large, and handling efficiency is low.
Summary of the invention
For solve existing between pipe bar lifting device and pipe bridge tube drawing and get rid of the above-mentioned shortcoming that pipe adopts workman manual handling, the invention provides the portable tube pulling mechanism of a kind of workover treatment pipe bar lifting device, this workover treatment pipe bar lifting device with portable tube pulling mechanism can be good at pipe bar (comprising tubing string) tube drawing, get rid of pipe task; And this mechanism is detachable, transport is convenient; All can install in workover treatment pipe bar lifting device both sides, on-the-spot strong adaptability.This device can realize the down operation of pipe bar quickly and accurately, not only shortens the well workover cycle, also mitigates the labour intensity of well workover workman simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: the portable tube pulling mechanism of a kind of workover treatment pipe bar lifting device, comprise upper bracket and pull-fork assembly, upper bracket is provided with the first rotating shaft, this pull-fork assembly and the first rotating shaft removably connect, the driver part that this pull-fork assembly contains shift fork and rotates for shift fork, when one end of shift fork is connected with one end of the first rotating shaft, this driver part can the other end of shift fork rotate in the first rotating shaft clockwise direction, when unloading this pull-fork assembly and make described one end of shift fork be connected with the other end of the first rotating shaft, this driver part can the described other end of shift fork upwards rotate around the first rotating shaft counterclockwise.
First rotating shaft is arranged in the horizontal direction.
The portable tube pulling mechanism of described workover treatment pipe bar lifting device also comprises undersetting, undersetting is positioned at the below of upper bracket, undersetting is provided with the second rotating shaft, this pull-fork assembly also comprises shift fork fixed bar, upper end and first rotating shaft of shift fork fixed bar removably connect, lower end and second rotating shaft of shift fork fixed bar removably connect, when described one end of shift fork is connected with described one end of the first rotating shaft, the upper end of shift fork fixed bar and described one end grafting of the first rotating shaft, the lower end of shift fork fixed bar and one end grafting of the second rotating shaft; When unloading this pull-fork assembly and make described one end of shift fork be connected with the described other end of the first rotating shaft, the upper end of shift fork fixed bar and the described other end grafting of the first rotating shaft, the lower end of shift fork fixed bar and the other end grafting of the second rotating shaft.
The axis being parallel of the second rotating shaft is in the axis of the first rotating shaft, and described one end of the first rotating shaft and described one end of the second rotating shaft are positioned at identical side, and the described other end of the first rotating shaft and the described other end of the second rotating shaft are positioned at identical opposite side.
Described one end of shift fork is bifurcation structure, and the upper end of shift fork fixed bar is inserted in the bifurcation of described one end of shift fork.
The lower end of shift fork fixed bar is provided with towards the protuberance of shift fork, and this driver part is hydraulic cylinder, the cylinder barrel of hydraulic cylinder and this protuberance of shift fork fixed bar hinged, piston rod and the shift fork of hydraulic cylinder are hinged.
The both sides of upper bracket be respectively provided with for the grafting of shift fork fixed bar fixing patch pin, patch pin between the first rotating shaft and the second rotating shaft.
Upper bracket and undersetting are fixed on the side of the base of workover treatment pipe bar lifting device, the axis being parallel of the first rotating shaft in the chain of this workover treatment pipe bar lifting device at horizontal position time direction of transfer, the described other end of shift fork is greater than the distance of epimere to the axis of the first rotating shaft of chain chain when horizontal position to the distance of the axis of the first rotating shaft.
The other end of shift fork is provided with pole, and pole is positioned at shift fork surface upward, and pole is vertical with shift fork.
Upper bracket is also connected with slope guide rod, slope guide rod is obliquely installed outside workover treatment pipe bar lifting device, the upper end of slope guide rod is inserted in upper bracket and the upper end of slope guide rod can around the first axis of rotation, the lower end of slope guide rod is provided with to the bending bend of horizontal direction, and the length of slope guide rod is greater than the distance between upper bracket and undersetting.
The invention has the beneficial effects as follows:
1, this portable tube pulling mechanism solves the difficult problem removing pipe bar (the comprising tubing string) transfer between pipe bridge and power cantilever arm in pipe process.
2, this portable tube pulling mechanism automatically, fast, accurately can complete pipe bar (comprising tubing string) tube drawing in drilling and repairing well operation, get rid of pipe operation, not only shortens the drilling and repairing well cycle, improves operating efficiency.Also efficiency avoids the potential safety hazard that workover treatment pipe bar lifting device operates, and alleviates the labour intensity of workman.
3, the pull-fork assembly in this portable tube pulling mechanism is detachable, transports easy-to-use.
4, this portable tube pulling mechanism all can install in workover treatment pipe bar lifting device both sides, on-the-spot strong adaptability.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the schematic diagram of portable tube pulling mechanism when entering operation under pipe bar in well.
Fig. 2 is the schematic diagram of portable tube pulling mechanism pipe bar in well when tripping out operation.
Fig. 3 is that portable tube pulling mechanism is arranged on schematic diagram workover treatment pipe bar lifting device carried out when pipe bar in well trips out operation.
Fig. 4 is the schematic diagram of chain during portable tube pulling mechanism installs.
Wherein 1. shift forks, 2. slope guide rod, 3. hydraulic cylinder, 4. upper bracket, 5. shift fork fixed bar, 6. undersetting, 7. piston rod, 8. patch pin, 9. the first rotating shaft, 10. the second rotating shaft, 11. poles, 12. bases, 13. chains, 14. power cantilever arms.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of portable tube pulling mechanism of workover treatment pipe bar lifting device, comprise upper bracket 4 and pull-fork assembly, upper bracket 4 is provided with the first rotating shaft 9, this pull-fork assembly and the first rotating shaft 9 removably connect, the driver part that this pull-fork assembly contains shift fork 1 and rotates for shift fork 1, shift fork 1 is shaft-like, when the upper end of shift fork 1 is connected with the left end of the first rotating shaft 9, as shown in Figure 1, this driver part can rotate clockwise by shift fork 1, and namely this driver part can the lower end of shift fork 1 rotate in the first rotating shaft 9 clockwise direction; When unloading this pull-fork assembly and make the upper end of shift fork 1 be connected with the right-hand member of the first rotating shaft 9, as shown in Figure 2, this driver part can rotate counterclockwise by shift fork 1, and this driver part can the lower end of shift fork 1 upwards rotate around the first rotating shaft 9 counterclockwise.
In the present embodiment, shift fork 1 is tilted to lower setting when original state, and the left end that this pull-fork assembly can be arranged on the first rotating shaft 9 also can be arranged on the right-hand member of the first rotating shaft 9 after unloading.Upper bracket 4 is fixed relative to the position of workover treatment pipe bar lifting device, and upper bracket 4 is passed in the first rotating shaft 9 and the two ends of the first rotating shaft 9 are stretched out from the left and right sides of upper bracket 4, and the first rotating shaft 9 is arranged in the horizontal direction.
As depicted in figs. 1 and 2, the portable tube pulling mechanism of described workover treatment pipe bar lifting device also comprises undersetting 6, undersetting 6 is positioned at immediately below upper bracket 4, undersetting 6 is provided with the second rotating shaft 10, this pull-fork assembly also comprises shift fork fixed bar 5, upper end and first rotating shaft 9 of shift fork fixed bar 5 removably connect, lower end and second rotating shaft 10 of shift fork fixed bar 5 removably connect, when the upper end of shift fork 1 is connected with the left end of the first rotating shaft 9, the upper end of shift fork fixed bar 5 and the left end grafting of the first rotating shaft 9 are fixed, the lower end of shift fork fixed bar 5 and the left end grafting of the second rotating shaft 10 are fixed, when unloading this pull-fork assembly and make the upper end of shift fork 1 be connected with the right-hand member of the first rotating shaft 9, the upper end of shift fork fixed bar 5 and the right-hand member grafting of the first rotating shaft 9 are fixed, the lower end of shift fork fixed bar 5 and the right-hand member grafting of the second rotating shaft 10 are fixed.
In the present embodiment, this pull-fork assembly comprises shift fork 1, driver part and shift fork fixed bar 5.The axis being parallel of the second rotating shaft 10 is in the axis of the first rotating shaft 9, and the left end of the first rotating shaft 9 and the left end of the second rotating shaft 10 are positioned at the left side of upper bracket 4, and the right-hand member of the first rotating shaft 9 and the right-hand member of the second rotating shaft 10 are positioned at the right side of upper bracket 4.The outside of upper bracket 4 and undersetting 6 is equipped with groove.
The upper end of shift fork 1 is bifurcation structure, the upper end of shift fork fixed bar 5 is inserted in the bifurcation of the upper end of shift fork 1, the left end of the first rotating shaft 9 can with the upper end grafting of the upper end of shift fork 1 and shift fork fixed bar 5, or the right-hand member of the first rotating shaft 9 can with the upper end grafting of the upper end of shift fork 1 and shift fork fixed bar 5.The lower end of shift fork fixed bar 5 is provided with towards the protuberance of shift fork 1, and this driver part is hydraulic cylinder 3, the cylinder barrel of hydraulic cylinder 3 and the lower end of shift fork fixed bar 5 hinged, the piston rod of hydraulic cylinder 37 is hinged with the middle and upper part of shift fork 1.
Upper bracket 4 be each side provided with for shift fork fixed bar 5 grafting fixing patch pin 8, patch pin 8 between the first rotating shaft 9 and the second rotating shaft 10, accordingly, shift fork fixed bar 5 be also provided with and the spliced eye patching pin 8 and match, as shown in Figure 2.
Equipment shown in Fig. 3 is workover treatment pipe bar lifting device, and this workover treatment pipe bar lifting device is rising, all can use in lower pipe bar (comprising tubing string) work progress.The major function of this workover treatment pipe bar lifting device is transfer tube bar (comprising tubing string), and pipe bar is transferred to well head from pipe bridge, hangs the optimum position of elevator.This workover treatment pipe bar lifting device comprises base 12 and power cantilever arm 14.Power cantilever arm 14 can be that axle rotates with one end, Figure 3 shows that the schematic diagram of power cantilever arm 14 when horizontal position of this workover treatment pipe bar lifting device, containing chain 13 in this power cantilever arm 14, the two ends of chain 13 are provided with sprocket wheel, can drive and the epimere of chain 13 can move in direction along A in Fig. 3 thus drive the pipe bar on chain 13 also to move in direction along A in Fig. 3 after sprocket wheel rotates forward.If after sprocket wheel rotates backward, can drive can the epimere of chain 13 along to move in the opposite direction with A side in Fig. 3 thus to drive the pipe bar on chain 13 also to move in the opposite direction with A side along in Fig. 3.In the present embodiment, as shown in Figure 3, two these portable tube pulling mechanisms install on the left of workover treatment pipe bar lifting device, and certainly, two these portable tube pulling mechanisms also can install on the right side of this workover treatment pipe bar lifting device.
Concrete, upper bracket 4 and undersetting 6 are fixed on the left surface of the base 12 of workover treatment pipe bar lifting device, the axis being parallel of the first rotating shaft 9 in the chain 13 of workover treatment pipe bar lifting device at horizontal position time direction of transfer (A direction), as shown in Figure 1 to Figure 3, the lower end of shift fork 1 is greater than the distance of epimere (epimere of chain 13 is BC section in Fig. 4) to the axis of the first rotating shaft 9 of chain 13 chain 13 when horizontal position to the distance of the axis of the first rotating shaft 9.
As depicted in figs. 1 and 2, the lower end of shift fork 1 is provided with pole 11, and pole 11 is positioned at shift fork 1 surface upward, and pole 11 is vertical with shift fork 1.Namely shift fork 1 is L-shaped, when shift fork 1 is connected with the left end of the first rotating shaft 9 in Fig. 1, pole 11 is towards the outside of this workover treatment pipe bar lifting device, and when shift fork 1 is connected with the right-hand member of the first rotating shaft 9 in Fig. 1, pole 11 is towards the inner side of this workover treatment pipe bar lifting device.
Upper bracket 4 is also connected with slope guide rod 2, as shown in Figure 1 to Figure 3, slope guide rod 2 is obliquely installed outside workover treatment pipe bar lifting device, in the groove that the upper end of slope guide rod 2 is inserted in the upper bracket 4 and upper end of slope guide rod 2 can be rotated around the first rotating shaft 9, first rotating shaft 9 is also connected with the positioning element (not shown) for locating afterwards in rotation, the lower end of slope guide rod 2 is provided with to the bending bend of the outside horizontal direction of this workover treatment pipe bar lifting device, and the length of slope guide rod 2 is greater than the distance between upper bracket 4 and undersetting 6.
During use, the left side that the pipe bridge for delivery pipe bar arranges this workover treatment pipe bar lifting device is in figure 3 corresponding with the position of two slope guide rods 2.When carrying out the G.I.H operation of pipe bar, this pull-fork assembly is arranged on the left end of the first rotating shaft 9 as shown in Figure 1, shift fork 1 and slope guide rod 2 are all positioned at the outside of this workover treatment pipe bar lifting device, simultaneously the pole 11 of shift fork 1 is towards the outside of this workover treatment pipe bar lifting device, along with piston rod 7 stretches out, shift fork 1 is driven to rotate clockwise, in motion process, on pipe bridge an one pipe bar lifts by shift fork 1 automatically, pipe bar can move up along shift fork 1, under the restriction of backing pin, on the chain 13 making pipe bar be parked in above power cantilever arm groove safely (now pipe bar is parallel with chain about 13), after tube pulling terminates, piston rod 7 bounces back, shift fork 1 is driven to rotate counterclockwise, get back to initial position, complete pipe bar from pipe bridge to power cantilever arm transfer.When carrying out that in well, pipe bar trips out operation, shift fork fixed bar 5 need be unloaded anti-dress, namely as shown in Figure 2, by counter for this pull-fork assembly right-hand member being contained in the first rotating shaft 9, the pole 11 of shift fork 1 is towards the inner side of this workover treatment pipe bar lifting device, along with piston rod 7 stretches out, shift fork 1 is driven to rotate counterclockwise, pipe bar in shift fork 1 group lower workover treatment pipe bar lifting device on chain 13 is on slope guide rod 2, this pipe bar is made to be slipped to pipe bridge assigned address along slope guide rod 2, after getting rid of duct ligation bundle, piston rod 7 bounces back, shift fork 1 is driven to rotate clockwise, get back to initial position as shown in Figure 2.
This portable tube pulling mechanism solves the difficult problem removing pipe bar (the comprising tubing string) transfer between pipe bridge and power cantilever arm in pipe process.In addition, this portable tube pulling mechanism automatically, fast, accurately can complete pipe bar tube drawing in drilling and repairing well operation, get rid of pipe operation, not only shortens the drilling and repairing well cycle, improves operating efficiency.Also efficiency avoids the potential safety hazard that workover treatment pipe bar lifting device operates, and alleviates the labour intensity of workman.Also have the pull-fork assembly in this portable tube pulling mechanism detachable, transport easy-to-use.
The above, be only specific embodiments of the invention, can not limit the scope that invention implements with it, so the displacement of its equivalent assemblies, or the equivalent variations done according to scope of patent protection of the present invention and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristic in the present invention and all can using by independent assortment between technical characteristic, between technical characteristic and technical scheme, between technical scheme and technical scheme.
Claims (10)
1. the portable tube pulling mechanism of workover treatment pipe bar lifting device, it is characterized in that, the portable tube pulling mechanism of described workover treatment pipe bar lifting device comprises upper bracket (4) and pull-fork assembly, upper bracket (4) is provided with the first rotating shaft (9), this pull-fork assembly and the first rotating shaft (9) removably connect, the driver part that this pull-fork assembly contains shift fork (1) and rotates for shift fork (1)
When one end of shift fork (1) is connected with one end of the first rotating shaft (9), this driver part can the other end of shift fork (1) rotate in the first rotating shaft (9) clockwise direction;
When unloading this pull-fork assembly and make described one end of shift fork (1) be connected with the other end of the first rotating shaft (9), this driver part can the described other end of shift fork (1) upwards rotate around the first rotating shaft (9) counterclockwise.
2. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 1, it is characterized in that, the first rotating shaft (9) is arranged in the horizontal direction.
3. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 2, it is characterized in that, the portable tube pulling mechanism of described workover treatment pipe bar lifting device also comprises undersetting (6), undersetting (6) is positioned at the below of upper bracket (4), undersetting (6) is provided with the second rotating shaft (10), this pull-fork assembly also comprises shift fork fixed bar (5), upper end and first rotating shaft (9) of shift fork fixed bar (5) removably connect, lower end and second rotating shaft (10) of shift fork fixed bar (5) removably connect
When described one end of shift fork (1) is connected with described one end of the first rotating shaft (9), the upper end of shift fork fixed bar (5) and described one end grafting of the first rotating shaft (9), the lower end of shift fork fixed bar (5) and one end grafting of the second rotating shaft (10);
When unloading this pull-fork assembly and make described one end of shift fork (1) be connected with the described other end of the first rotating shaft (9), the upper end of shift fork fixed bar (5) and the described other end grafting of the first rotating shaft (9), the lower end of shift fork fixed bar (5) and the other end grafting of the second rotating shaft (10).
4. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, the axis being parallel of the second rotating shaft (10) is in the axis of the first rotating shaft (9), described one end of first rotating shaft (9) and described one end of the second rotating shaft (10) are positioned at identical side, and the described other end of the first rotating shaft (9) and the described other end of the second rotating shaft (10) are positioned at identical opposite side.
5. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, described one end of shift fork (1) is bifurcation structure, and the upper end of shift fork fixed bar (5) is inserted in the bifurcation of described one end of shift fork (1).
6. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, the lower end of shift fork fixed bar (5) is provided with towards the protuberance of shift fork (1), this driver part is hydraulic cylinder (3), the cylinder barrel of hydraulic cylinder (3) and this protuberance of shift fork fixed bar (5) hinged, the piston rod (7) of hydraulic cylinder (3) is hinged with shift fork (1).
7. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, the both sides of upper bracket (4) be respectively provided with for shift fork fixed bar (5) grafting fixing patch pin (8), patch pin (8) and be positioned between the first rotating shaft (9) and the second rotating shaft (10).
8. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, upper bracket (4) and undersetting (6) are fixed on the side of the base (12) of workover treatment pipe bar lifting device, the axis being parallel of the first rotating shaft (9) in the chain (13) of this workover treatment pipe bar lifting device at horizontal position time direction of transfer, the described other end of shift fork (1) is greater than the distance of epimere to the axis of the first rotating shaft (9) of chain (13) chain (13) when horizontal position to the distance of the axis of the first rotating shaft (9).
9. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 1, it is characterized in that, the other end of shift fork (1) is provided with pole (11), pole (11) is positioned at shift fork (1) surface upward, and pole (11) is vertical with shift fork (1).
10. the portable tube pulling mechanism of workover treatment pipe bar lifting device according to claim 3, it is characterized in that, upper bracket (4) is also connected with slope guide rod (2), slope guide rod (2) is obliquely installed outside workover treatment pipe bar lifting device, the upper end of slope guide rod (2) is inserted in upper bracket (4) and the upper end of slope guide rod (2) and can rotates around the first rotating shaft (9), the lower end of slope guide rod (2) is provided with to the bending bend of horizontal direction, the length of slope guide rod (2) is greater than the distance between upper bracket (4) and undersetting (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245479.XA CN104879076A (en) | 2015-05-14 | 2015-05-14 | Portable pipe shifting mechanism for pipe rod lifting device in well repair work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510245479.XA CN104879076A (en) | 2015-05-14 | 2015-05-14 | Portable pipe shifting mechanism for pipe rod lifting device in well repair work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104879076A true CN104879076A (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510245479.XA Pending CN104879076A (en) | 2015-05-14 | 2015-05-14 | Portable pipe shifting mechanism for pipe rod lifting device in well repair work |
Country Status (1)
| Country | Link |
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| CN (1) | CN104879076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594938A (en) * | 2019-01-25 | 2019-04-09 | 济南芯乐智能设备有限公司 | A kind of offshore platform automation workover rig base device |
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|---|---|---|---|---|
| US6158516A (en) * | 1998-12-02 | 2000-12-12 | Cudd Pressure Control, Inc. | Combined drilling apparatus and method |
| US6298927B1 (en) * | 2000-03-17 | 2001-10-09 | Laibe Corporation | Pipe storage and handling system for a drilling rig |
| CN103046881A (en) * | 2013-01-03 | 2013-04-17 | 东北石油大学 | Automatic column moving device for workover |
| CN103758471A (en) * | 2014-01-18 | 2014-04-30 | 高胜 | Portable well repair tubular column shifting and conveying device |
| CN204703796U (en) * | 2015-05-14 | 2015-10-14 | 中国石油天然气股份有限公司 | A kind of portable tube pulling mechanism of workover treatment pipe bar lifting device |
-
2015
- 2015-05-14 CN CN201510245479.XA patent/CN104879076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6158516A (en) * | 1998-12-02 | 2000-12-12 | Cudd Pressure Control, Inc. | Combined drilling apparatus and method |
| US6298927B1 (en) * | 2000-03-17 | 2001-10-09 | Laibe Corporation | Pipe storage and handling system for a drilling rig |
| CN103046881A (en) * | 2013-01-03 | 2013-04-17 | 东北石油大学 | Automatic column moving device for workover |
| CN103758471A (en) * | 2014-01-18 | 2014-04-30 | 高胜 | Portable well repair tubular column shifting and conveying device |
| CN204703796U (en) * | 2015-05-14 | 2015-10-14 | 中国石油天然气股份有限公司 | A kind of portable tube pulling mechanism of workover treatment pipe bar lifting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594938A (en) * | 2019-01-25 | 2019-04-09 | 济南芯乐智能设备有限公司 | A kind of offshore platform automation workover rig base device |
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Application publication date: 20150902 |