CN203905871U - Device for rapid replacement of BOP (blowout preventer) - Google Patents
Device for rapid replacement of BOP (blowout preventer) Download PDFInfo
- Publication number
- CN203905871U CN203905871U CN201420346543.4U CN201420346543U CN203905871U CN 203905871 U CN203905871 U CN 203905871U CN 201420346543 U CN201420346543 U CN 201420346543U CN 203905871 U CN203905871 U CN 203905871U
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- Prior art keywords
- direction guide
- guide rail
- bop
- guide rails
- small car
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 238000005553 drilling Methods 0.000 abstract description 31
- 238000009434 installation Methods 0.000 abstract description 8
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a device for rapid replacement of a BOP (blowout preventer) and belongs to the field of petroleum drilling equipment. The device for rapid replacement of the BOP comprises X-direction guide rails, moving devices and Y-direction guide rails, wherein the X-direction guide rails are installed on the top layer of a derrick substructure and extend in the length direction of a base of the derrick substructure; the moving devices are installed on the X-direction guide rails and can move along the X-direction guide rails; the included angle is formed by each X-direction guide rail and each Y-direction guide rail; at least two groups of Y-direction guide rails are installed on the moving devices; the moving devices can move along the X-direction guide rails and drive each group of Y-direction guide rails to move along the X-direction guide rails respectively; lifting hoists are installed on the Y-direction guide rails, can move along the Y-direction guide rails and can drive the moving devices to move along the X-direction guide rails. According to the device for rapid replacement of the BOP, installation and commissioning of the BOP in the next well position can be performed during drilling, so that the waiting time for installation and commissioning of the BOP during drilling is saved, and the drilling efficiency is improved greatly.
Description
Technical field
The utility model relates to the device of a kind of convenient replacing BOP, belongs to oil-well drilling equipment field.
Background technology
In Process of Oil Well Drilling, same well, with the difference of drilling depth, need to be changed the sleeve pipe of different tube diameters.When casing replacing more, usually at well head, preventer (blowout preventer is called for short BOP) is installed, in order to prevent that well inner high voltage liquid from ejecting.
In prior art, the device of handling BOP is for to be provided with a pair of moving guide rail being arranged in parallel at derrick base top layer, moving guide rail extends along derrick pedestal length direction, and lifting cucurbit is installed on moving guide rail, by lifting cucurbit, along moving guide rail, moves BOP handling to pre-drilling well well location.The handling BOP device of said structure, can only hang a BOP, when carrying out the operation of cluster well continuous-flow type, in the situation that this well head spacing is very little, two BOP of same employing, owing to only having a set of handling BOP device, cannot realize when No. 2 well operations, BOP dismounting, maintenance, the handling of No. 1 well are gone out to derrick base and then move into No. 3 well locations.Can only beat after a bite well, drilling-machine shifter reinstalls new BOP after next well location, and after former BOP carries out the follow-up works such as demolition and maintenance and is ready to, handling is removed standby.Conventional design need to be waited for dismounting, the installation of new and old BOP, and this process generally need to spend 3 hours above time, has not only stopped over the time, and has increased corresponding handling equipment, greatly reduces drilling efficiency.Time is relatively valuable for oil field drill, so be badly in need of a kind ofly can improving drilling efficiency, saves that drilling well is prepared, the device of the convenient and swift replacing BOP of set-up time.
Utility model content
Goal of the invention of the present utility model is: the problem existing for prior art, provides a kind of.
To achieve these goals, the technical solution adopted in the utility model is:
A device of convenient replacing BOP, comprising: X-direction guide rail, and described X-direction guide rails assembling extends at the top layer of derrick base and along the pedestal length direction of derrick base; Mobile device, described mobile device is arranged on described X-direction guide rail, and can move along described X direction guiding rail; With Y-direction guide rail, described X-direction guide rail and described Y-direction guide rail have angle; Described Y-direction guide rail is divided into more than two, and is arranged on described mobile device; Described mobile device can along described X direction guiding rail move and drive every group respectively described in Y-direction guide rail along described X-direction guide rail, move; Lifting cucurbit is installed on described Y-direction guide rail, and described lifting cucurbit can be moved along described Y-direction guide rail, and can drive described mobile device to move along described X direction guiding rail.The device of the convenient replacing BOP of said structure, described lifting cucurbit can be electric block, can be also bottle gouard moved by hands, during device work, BOP hangs on described lifting cucurbit.When described lifting cucurbit is electric block, electric block self is along described Y-direction guide rail movement, and drives described Y-direction guide rail to move along described X-direction guide rail; When described lifting cucurbit is bottle gouard moved by hands, by exterior power, drive respectively bottle gouard moved by hands self along described Y-direction guide rail movement, drive described Y-direction guide rail to move along described X-direction guide rail simultaneously.Said apparatus is when rig carries out drillng operation to No. 1 well location, and first BOP of lifting cucurbit handling described in described first group on Y-direction guide rail carries out work at No. 1 well location; Start the lifting cucurbit on Y-direction guide rail described in second group simultaneously, lifting cucurbit on described second group of Y-direction guide rail is moved along described X-direction guide rail with Y-direction guide rail described in second group, described in described second group, the lifting cucurbit self on Y-direction guide rail drives BOP to move along described second group of Y-direction guide rail simultaneously, by second BOP handling to 2 well location.Second BOP installs, debugs and wait for drilling well at No. 2 well locations, when rig completes after drilling well at No. 1 well location, mobile drill to 2 well location directly carries out drilling well, does not need to wait for installment and debugging BOP, greatly save the time of drilling well, improved drilling efficiency.The device of above-mentioned convenient replacing BOP, according to the operating rate of drilling well, also can arrange the described Y-direction guide rail that surpasses two groups, can to many mouthfuls of well locations, carry out Installation and Debugging, the dismounting of BOP simultaneously.
As preferred version of the present utility model, the angle of described X-direction guide rail and described Y-direction guide rail is 90 °.When described X-direction guide rail is mutual vertical with described Y-direction guide rail, the syndeton of described X-direction guide rail and described Y-direction guide rail is the most firm and the motion distance of BOP on described Y-direction guide rail is the shortest, and the safety of device is best; When described X-direction guide rail is mutual vertical with described Y-direction guide rail simultaneously, described Y-direction guide rail is the shortest, and installation cost is low.
As preferred version of the present utility model, described X-direction guide rail comprises the first X-direction guide rail and the second X-direction guide rail, and described the first X-direction guide rail and described the second X-direction guide rail are parallel to each other; One end of described Y-direction guide rail is arranged on described the first X-direction guide rail by described mobile device; The other end of described Y-direction guide rail is arranged on described the second X-direction guide rail by described mobile device.The device of the convenient replacing BOP of said structure, arranges a pair of described X-direction guide rail being parallel to each other, and the two ends of described Y-direction guide rail are separately positioned on two X-direction guide rails, and can move along described X-direction guide rail.Described X-direction guide rail and described Y-direction guide rail form stable tower structure, and the stability of device is strong, and the safety of handling BOP improves.In actual production, described X-direction guide rail also can comprise over two X-direction guide rails that are parallel to each other, the so further stability of stiffening device, but, meeting consumptive material is consuming time like this, therefore be preferably, two X-direction guide rails that are parallel to each other are set, and it is easy for installation on base that two X-direction guide rails that are parallel to each other are set.
As preferred version of the present utility model, described Y-direction guide rail is divided into two groups, every group of two guide rails; First group: comprise the first Y-direction guide rail and the second Y-direction guide rail that are parallel to each other, described the first Y-direction guide rail is connected by head rod with described the second Y-direction guide rail; Second group: comprise the 3rd Y-direction guide rail and the 4th Y-direction guide rail that are parallel to each other, described the 3rd Y-direction guide rail is connected by the second connecting rod with described the 4th Y-direction guide rail.The handling BOP device of said structure, simple in structure, two groups of Y-direction guide rails are used in conjunction with demolition and maintenance, the Installation and Debugging that just can complete BOP in drilling process; And Y-direction guide rail arranges a pair of Y-direction guide rail being parallel to each other described in every group, device handling BOP process stabilization, drilling process safety factor improves.
As preferred version of the present utility model, described mobile device is for comprising roller, and described roller is positioned on X-direction guide rail; On described roller, by bearing pin, be hinged with ear seat, the lower end of described ear seat is connected with described Y-direction guide rail; Described roller rotates and drives described Y-direction guide rail to move along described X-direction guide rail by described ear seat around described bearing pin.The mobile device of said structure, the rotation by roller drives described Y-direction guide rail to move along described X-direction guide rail, and device is difficult for occurring jam phenomenon, and production safety coefficient improves.
As preferred version of the present utility model, described pedestal is provided with transport small car track, and described transport small car track extends along X-direction guide rail direction, described at least one X-direction guide rail be positioned at described transport small car track directly over; Described transport small car track is provided with transport small car, and described transport small car can be along described transport small car orbital motion.In drilling process; BOP is long along the move distance of X-direction guide rail direction; the device of the convenient replacing BOP of said structure; the below of an X-direction guide rail arranges described transport small car and transport small car track therein; can be first by described BOP handling to described transport small car; described BOP upper end is connected with lifting cucurbit; lower end is placed on described transport small car; utilize described transport small car and lifting cucurbit jointly to complete the X-direction motion of described BOP; can protect like this mobile device not to be damaged, improve the safety factor of device.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, handling BOP device of the present utility model, be provided with described X-direction track and the described Y-direction track of angle, and described Y-direction track comprises more than two.
During drill drilling, by lifting cucurbit handling BOP along described X-direction track and described Y-direction orbital motion, any position in BOP handling extremely can being installed;
Meanwhile, described Y-direction track more than two is set, when Y-direction track described in first group and first BOP of lifting cucurbit handling are during at a upper well location drillng operation; The described Y-direction track that device startup is second group and lifting cucurbit carry out Installation and Debugging by second BOP handling to next well location, and rig is when a upper well location drilling well like this, and the installment and debugging of the BOP of next well location just completes.After a upper well location completion, rig moves to next well location just can directly carry out drilling well, does not need the installment and debugging of the front BOP of drilling well by the time.
To sum up, use handling BOP device of the present utility model, every mouthful of drilling well can be saved 3 hours above drilling times, has greatly improved the efficiency of drilling well.
2, transport small car track and described transport small car are set on the pedestal of derrick base, described at least one X-direction guide rail be positioned at described transport small car track directly over.The handling BOP device of said structure; the below of an X-direction guide rail arranges described transport small car and transport small car track therein; can be first by described BOP handling to described transport small car; described BOP upper end is connected with lifting cucurbit; lower end is placed on described transport small car; utilize described transport small car and lifting cucurbit jointly to complete the X-direction motion of described BOP, can protect like this mobile device not to be damaged, improve the safety factor of device.
Accompanying drawing explanation
Fig. 1 is that the utility model is arranged on the structural representation on derrick base;
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1;
Fig. 3 is the left view of Fig. 1.
Fig. 4 is that the utility model device is arranged on the local syndeton schematic diagram of X-direction on derrick base;
Fig. 5 is that the utility model device is arranged on the local syndeton schematic diagram of Y-direction on derrick base.
Mark in figure: 1-pedestal, pedestal before 101-, pedestal after 102-, 2-middle level, 201-connects column, 202-link, 3-top layer, 301-upper left seat, 302-upper right seat, 303-middle base, 304-motor beam, 305-table beam, 4-transport small car guide rail, 5-transport small car, 6-X direction guiding rail, 601-the first X-direction guide rail, 602-the second X-direction guide rail, 7-Y direction guiding rail, 701-the first Y-direction guide rail, 702-the second Y-direction guide rail, 703-the 3rd Y-direction guide rail, 704-the 4th Y-direction guide rail, 8-pipe setback, 9-mobile device, 901-roller, 902-otic placode, 10-head rod, 11-the second connecting rod, 12-electric block, 13-BOP, 14-1 well location, 15-2 well location, 16-3 well location.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
embodiment 1
Be carrier-derrick base structural scheme of mechanism of the device of the utility model convenient replacing BOP as shown in Figure 1 to Figure 3.Fig. 1 is the structural representation that derrick base is installed the utility model device; Fig. 2 is A-A sectional view in Fig. 1; Fig. 3 is that intention is looked on a left side of Fig. 1.
As Fig. 1, derrick base comprises pedestal 1, middle level 2 and top layer 3;
As Fig. 2, pedestal 1 comprises front pedestal 101 and rear pedestal 102, and front pedestal 101 and rear pedestal 102 are parallel to each other; On front pedestal 101, transport small car guide rail 4 is installed, transport small car guide rail 4 extends axially along front pedestal 101.Transport small car guide rail 4 is provided with transport small car 5, and transport small car 5 can move along transport small car guide rail 4;
As Fig. 3, middle level 2 comprises connection column 201, connects column 201 and comprises four, is vertically arranged on respectively the two ends of front pedestal 101 and rear pedestal 102; At front pedestal 101 and rear pedestal 102, between two connection columns 201 with one end, link 202 is installed;
The upper end in middle level 2 is the top layer 3 of derrick base, and as shown in Figure 4, the top layer 3 of derrick base comprises upper left seat 301, upper right seat 302 and middle base 303, and the two ends of middle base 303 are connected with upper left seat 301, upper right seat 302 respectively by ear seat pin axle; Middle base 303 is comprised of motor beam 304, table beam 305 and pipe setback 8, and motor beam 304 is connected and fixed by bearing pin with table beam 305, and table beam 305 is connected and fixed by bearing pin with pipe setback 8.The device of convenient replacing BOP of the present utility model is arranged on derrick base top layer, and Fig. 4 is the local syndeton schematic diagram of the X-direction of the utility model device and derrick base.
As shown in Fig. 2, Fig. 4 and Fig. 5,
As Fig. 2, the device of convenient replacing BOP of the present utility model comprises mutual vertically disposed X-direction guide rail 6 and Y-direction guide rail 7, and X-direction guide rail 6 extends along pedestal 1 direction.X-direction guide rail 6 is connected with upper left seat 301, upper right seat 302, motor beam 304 and the pipe setback 8 of top layer 3 respectively by bearing pin.X-direction guide rail 6 comprises that the first X-direction guide rail 601 and the second X-direction guide rail 602, the first X-direction guide rails 601 and the second X-direction guide rail 602 are parallel to each other, and the first X-direction guide rail 601 is positioned at directly over transport small car guide rail 4; The first X-direction guide rail 601 is arranged on upper left seat 301, upper right seat 302 and pipe setback 8 by bearing pin; The second X-direction guide rail 602 is arranged in upper left seat 301, upper right seat 302 and motor beam 304 by bearing pin.
As Fig. 4, mobile device 9 is installed on X-direction guide rail 6, one end of Y-direction guide rail 7 is arranged on the first X-direction guide rail 601 by mobile device 9, and the other end of Y-direction guide rail 7 is arranged on the second X-direction guide rail 602 by mobile device 9; Mobile device 9 comprises the roller 901 that is positioned at X-direction guide rail 6, and roller 901 can move along X-direction guide rail 6; On roller 901, be connected with otic placode 902, the upper end of otic placode 902 is hinged on roller 901 by bearing pin, and roller 901 rotates and drives otic placode 902 to move along X-direction guide rail 6 around bearing pin; The lower end of otic placode 902 is connected with Y-direction guide rail 7 by bearing pin; Roller 901 rotates by otic placode 902 and drives Y-direction guide rail 7 to move along X-direction guide rail 6 around bearing pin.
As Fig. 2, Y-direction guide rail 7 comprises the first Y-direction guide rail 701, the second Y-direction guide rail 702, the 3rd Y-direction guide rail 703 and the 4th Y-direction guide rail 704 being arranged in parallel; It is as a whole that the first Y-direction guide rail 701 and the second Y-direction guide rail 702 are connected by head rod 10, and the 3rd Y-direction guide rail 703 is connected as a whole with the 4th Y-direction guide rail 704 by the second connecting rod 11.
As Fig. 5, electric block 12 is installed on Y-direction guide rail 7, electric block 12 can move along Y-direction guide rail 7, and electric block 12 can drive roller 901 to rotate simultaneously, and drives Y-direction guide rail 7 to move along X-direction guide rail 6 by mobile device 9.Fig. 2 is A-A sectional view in Fig. 1; Fig. 4 is that the utility model device is arranged on the local syndeton schematic diagram of X-direction on derrick base; Fig. 5 is that the utility model device is arranged on the local syndeton schematic diagram of Y-direction on derrick base.
The device of convenient replacing BOP of the present utility model, during horizontal well operation, by BOP13 handling to derrick base edge, disassemble a link 202 on derrick base, then BOP13 is suspended on to electric block 12 lower ends, by electric block 12 drive BOP13 along Y-direction guide rail 7 and X-direction guide rail 6 by first electric block 12 handling to 1 well location 14 operations.
As Fig. 2, rig is when No. 1 well location 14 operation, and device drives second BOP13 to carry out the laterally position adjustments of (X-direction) and longitudinal (Y-direction) along Y-direction guide rail 7 and X-direction guide rail 6 by electric block 12, by second BOP13 handling to 2 well location and be in place.After 14 dozens, No. 1 well is complete, during drilling-machine shifter to 2 well location 15, the BOP13 of No. 2 well locations 15 is in place, can directly carry out the drilling well of No. 2 well locations 15, reduces spudding in the time of the medium BOP13 to be installed of drilling process.Rig is when No. 2 well location 15 operations, the BOP13 of former No. 1 well location 14 is after the follow-up works such as dismounting, maintenance are ready to, can along Y-direction guide rail 7 and X-direction guide rail 6, move by handling and fix to the transport small car on transport small car guide rail 4 by electric block 12, the motion on transport small car guide rail 4 by transport small car again, by its movement to 3 well location 16, standby to treat.
The device of convenient replacing BOP of the present utility model, drives the BOP13 that hangs on electric block 12 lower ends to move along Y-direction guide rail 7 by electric block 12; Simultaneously, electric block 12 can also drive roller 901 to rotate, and drive Y-direction guide rail 7 integral body to move along X-direction guide rail 6 by mobile device 9, and can realize like this BOP13 in the movement of the horizontal and vertical both direction of derrick base, BOP13 can be moved to the optional position on derrick base.During drill drilling, just can complete the transformation of BOP13 preventer between different well locations position in base, save the time of drilling well, reduce handling equipment use, through test, every mouthful of well can be saved 3 hours above preparation and set-up times.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a device of convenient replacing BOP, comprises X-direction guide rail, and described X-direction guide rails assembling extends at the top layer of derrick base and along the pedestal length direction of derrick base, it is characterized in that: also comprise
Mobile device, described mobile device is arranged on described X-direction guide rail, and can move along described X direction guiding rail; With
Y-direction guide rail, described X-direction guide rail and described Y-direction guide rail have angle; Described Y-direction guide rail is divided into more than two, and is arranged on described mobile device; Described mobile device can along described X direction guiding rail move and drive every group respectively described in Y-direction guide rail along described X-direction guide rail, move;
Lifting cucurbit is installed on described Y-direction guide rail, and described lifting cucurbit can be moved along described Y-direction guide rail, and can drive described mobile device to move along described X direction guiding rail.
2. the device of convenient replacing BOP according to claim 1, is characterized in that: the angle of described X-direction guide rail and described Y-direction guide rail is 90 °.
3. the device of convenient replacing BOP according to claim 1, is characterized in that:
Described X-direction guide rail comprises the first X-direction guide rail and the second X-direction guide rail, and described the first X-direction guide rail and described the second X-direction guide rail are parallel to each other;
One end of described Y-direction guide rail is arranged on described the first X-direction guide rail by described mobile device; The other end of described Y-direction guide rail is arranged on described the second X-direction guide rail by described mobile device.
4. the device of convenient replacing BOP according to claim 3, is characterized in that:
Described Y-direction guide rail is divided into two groups, every group of two guide rails;
First group: comprise the first Y-direction guide rail and the second Y-direction guide rail that are parallel to each other, described the first Y-direction guide rail is connected by head rod with described the second Y-direction guide rail;
Second group: comprise the 3rd Y-direction guide rail and the 4th Y-direction guide rail that are parallel to each other, described the 3rd Y-direction guide rail is connected by the second connecting rod with described the 4th Y-direction guide rail.
5. the device of convenient replacing BOP according to claim 1, is characterized in that:
Described mobile device is for comprising roller, and described roller is positioned on X-direction guide rail; On described roller, by bearing pin, be hinged with ear seat, the lower end of described ear seat is connected with described Y-direction guide rail;
Described roller rotates and drives described Y-direction guide rail to move along described X-direction guide rail by described ear seat around described bearing pin.
6. according to the device of the convenient replacing BOP described in claim 1～5 any one, it is characterized in that:
Described pedestal is provided with transport small car track, and described transport small car track extends along X-direction guide rail direction, described at least one X-direction guide rail be positioned at described transport small car track directly over;
Described transport small car track is provided with transport small car, and described transport small car can be along described transport small car orbital motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346543.4U CN203905871U (en) | 2014-06-26 | 2014-06-26 | Device for rapid replacement of BOP (blowout preventer) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346543.4U CN203905871U (en) | 2014-06-26 | 2014-06-26 | Device for rapid replacement of BOP (blowout preventer) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203905871U true CN203905871U (en) | 2014-10-29 |
Family
ID=51780160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346543.4U Expired - Lifetime CN203905871U (en) | 2014-06-26 | 2014-06-26 | Device for rapid replacement of BOP (blowout preventer) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203905871U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285532A (en) * | 2016-08-30 | 2017-01-04 | 宝鸡石油机械有限责任公司 | It is applicable to preventer board migration device and the movement method of double-wellhead rig |
| CN107965281A (en) * | 2017-11-22 | 2018-04-27 | 宝鸡石油机械有限责任公司 | A kind of marine module drilling rig preventer board migration device and movement method |
-
2014
- 2014-06-26 CN CN201420346543.4U patent/CN203905871U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285532A (en) * | 2016-08-30 | 2017-01-04 | 宝鸡石油机械有限责任公司 | It is applicable to preventer board migration device and the movement method of double-wellhead rig |
| CN107965281A (en) * | 2017-11-22 | 2018-04-27 | 宝鸡石油机械有限责任公司 | A kind of marine module drilling rig preventer board migration device and movement method |
| CN107965281B (en) * | 2017-11-22 | 2020-02-18 | 宝鸡石油机械有限责任公司 | Offshore module drilling rig blowout preventer moving device and moving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |