CN202832293U - Well repair operation pipe rod conveyor - Google Patents
Well repair operation pipe rod conveyor Download PDFInfo
- Publication number
- CN202832293U CN202832293U CN 201220358988 CN201220358988U CN202832293U CN 202832293 U CN202832293 U CN 202832293U CN 201220358988 CN201220358988 CN 201220358988 CN 201220358988 U CN201220358988 U CN 201220358988U CN 202832293 U CN202832293 U CN 202832293U
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- pipe bar
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000007704 transition Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 19
- 238000003756 stirring Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 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 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A well repair operation pipe rod conveyor comprises a machine frame assembly, a section of lifting mechanism, a main sliding way assembly, a lifting hydraulic cylinder, two sections of telescopic mechanisms, a conveyed pipe, a pipe rod transition bridge, a pipe row frame and the like. One end of the section of lifting mechanism is arranged on the machine frame assembly, the other end of the section of lifting mechanism is installed with the machine frame assembly, support legs are arranged at two ends of the machine frame assembly, a discharging frame and a rotating arm assembly are installed on two sides of the machine frame assembly, a feeding frame is arranged at the upper portion of the discharging frame, and the pipe rod transition bridge is installed on the left side or the right side of the machine frame assembly. The main sliding way assembly is sequentially installed with a sliding way overturning seat and two sections of telescopic mechanisms, and the two sections of telescopic mechanisms are installed on one section of lifting mechanism. A programmable logic controller (PLC) is arranged in a hydraulic station assembly and controls automatic operation of a hydraulic pipeline and an electric device of the whole machine. The well repair operation pipe rod conveyor has the advantages of being fast in speed of the whole machine, high in efficiency, wide in application range, high in strength, high in automation degree and the like, is controlled by the PLC and widely applied to petroleum mining well repairing operation engineering.
Description
Technical field
The utility model relates to the workover treatment equipment in the oil exploitation, particularly a kind of workover treatment pipe bar conveyer.
Background technology
In traditional oil field light maintenance job execution process, the artificial mode of the row of drawing of most utilization when removing pipe, bar will be managed, bar draws to be discharged on the framed bent of ground or by the ground framed bent from well head and move on the well head rig floor.This traditional form of construction work exists following shortcoming or deficiency: 1. labor intensity of operating staff is large, and inefficiency is wasted time and energy, because more problems in the ground coaster use procedure is also dangerous; 2. in the process that drags of pipe bar, pipe bar screw thread end be in the ramp, slideway is mobile, the oil pipe thread subject to damage; 3. in the general light maintenance construction operation, per tour only need be joined 4 people, roustabout 1 people wherein, and in the well workover construction of high rig floor, per tour at least 5 people, wherein roustabout 2 people have caused personnel's waste; 4. in the workover treatment process, the rising to put of single pipe bar repeats twice at least, caused, lower oil pipe bar speed is slow, inefficiency.
Summary of the invention
The purpose of this utility model provides a kind of improved workover treatment pipe bar conveyer, adopt Hydraulic Station assembly and interior PLC programmable control unit thereof, support assembly, one, two joint lifting mechanisms, the main skid assembly, the pivoted arm assembly, the lifting fluid cylinder, on, blanking rack, pipe bar transit bridge, the combining structure of pipe framed bent etc., when solving workover treatment, with sucker rod, the automation of the slender rod pieces such as oil pipe between pipe framed bent and rig floor carried, can be with the pipe on the pipe framed bent, the defeated rig floor of automatically delivering to of bar, the pipe that also well head can be extracted, bar automatically is transported to the pipe framed bent downwards.The shortcoming or the deficiency that effectively overcome or avoid existing in the above-mentioned prior art.
Workover treatment pipe bar conveyer described in the utility model comprises Hydraulic Station assembly, support assembly, a joint lifting mechanism, main skid assembly, pivoted arm assembly, slideway overturning seat, lifting fluid cylinder, stock shelf, two joint telescoping mechanisms, is transferred pipe, rig floor, pipe bar transit bridge, blanking rack, supporting leg, pipe framed bent, material loading fluid cylinder, blanking transition bridge.One end of a described joint lifting mechanism is installed on the support assembly, the other end is installed mutually by lifting fluid cylinder and support assembly, the support assembly two ends are equipped with supporting leg, blanking rack, pivoted arm assembly are installed on the support assembly both sides, stock shelf is installed on blanking rack top, and pipe bar transit bridge is installed on left side or the right side of support assembly; Described main skid assembly is installed mutually with slideway overturning seat, two joint telescoping mechanisms in turn, two joint telescoping mechanisms are installed in the joint lifting mechanism, slideway overturning seat, main skid assembly stretch out, retract in a joint lifting mechanism, overturn, ajust on two joint telescoping mechanisms; Be provided with the PLC programmable control unit in the described Hydraulic Station assembly, the automatic running of control complete machine fluid pressure line and electric fixtures.
Wherein, a described joint lifting mechanism one end is connected on the mechanism rack assembly by hinged ear seat, and the other end is connected with the lifting fluid cylinder, and lifting fluid cylinder drive one joint lifting mechanism, two joint telescoping mechanisms, main skid assembly hoist, land.Described support assembly both sides respectively are equipped with a pivoted arm assembly, and each pivoted arm assembly is provided with a shaft type mechanical rocker arm, and each pivoted arm is provided with two material loading arms.Described material loading fluid cylinder is installed in the support assembly middle part, and its piston outer end is connected with the pivoted arm assembly.Described material loading arm comprises the back-moving spring of installing in material loading arm main body and middle part thereof, bearing pin and the movable stirring hook that an end is installed, and the other end is provided with installing hole, and this installing hole is installed mutually with bearing pin and the seat on blanking rack top.The side of described support assembly is equipped with at least one pipe bar transit bridge.Described blanking rack top is equipped with stock shelf.Described blanking transition bridge one end is connected with blanking rack top, and the other end contacts with the pipe framed bent.
The utility model has the following advantages compared with prior art:
(1) complete machine is simple to operate, and is easy to use.
(2) pipe bar lifting, decrease speed are fast, during 4 meters of well head height, oil pipe are transported to approximately 25s of rig floor from the pipe framed bent, go to approximately 20s of pipe framed bent from rig floor, and operating efficiency is high.
(3) lift height, extension elongation can be set according to on-the-spot well head height and well layout situation, and the scope of application is more extensive.
(4) hardware of conveyor body employing, intensity is high, shock resistance.Be with 4 extending type adjustable support legs on the pedestal, Area of bearing is large, and stability is high.
(5) adopt alternatively coaster of chute, protection tube bar screw thread is injury-free.
(6) conveyor body and hydraulic power station split are arranged, connect by quick connector between the two, and compact conformation, rationally distributed, not only improve job security but also be convenient to carrying, install.
Description of drawings
Fig. 1 is a kind of example structure schematic diagram of this practicality;
Fig. 2 is for pressing A-A shown in Figure 1 to structural representation;
Fig. 3 is for pressing side-looking structure material loading view shown in Figure 1;
Fig. 4 is for pressing side-looking structure blanking view shown in Figure 1;
Fig. 5 is for pressing material loading arm configuration schematic diagram shown in Figure 3.
The specific embodiment
Consult Fig. 1-Fig. 5, a kind of workover treatment pipe bar conveyer comprises Hydraulic Station assembly 1, support assembly 2, a joint lifting mechanism 3, main skid assembly 4, pivoted arm assembly 5, slideway overturning seat 6, lifting fluid cylinder 7, stock shelf 8, two joint telescoping mechanisms 9, is transferred pipe 10, rig floor 11, pipe bar transit bridge 12, blanking rack 13, supporting leg 14, pipe framed bent 15, material loading fluid cylinder 16, blanking transition bridge 17.One end of one joint lifting mechanism 3 is installed on the support assembly 2, and the other end is installed mutually by lifting fluid cylinder 7 and support assembly 2; Support assembly 2 two ends are equipped with supporting leg 14, and blanking rack 13, pivoted arm assembly 5 are installed on support assembly 2 both sides, and stock shelf 8 is installed on blanking rack 13 tops, and pipe bar transit bridge 12 is installed on left side or the right side of support assembly 2; Described main skid assembly 4 is installed mutually with slideway overturning seat 6, two joint telescoping mechanisms 9 in turn, two joint telescoping mechanisms 9 are installed in the joint lifting mechanism 3, slideway overturning seat 6, main skid assembly 4 stretch out, retract in a joint lifting mechanism 3, overturn, ajust on two joint telescoping mechanisms 9; Be provided with the PLC programmable control unit in the described Hydraulic Station assembly 1, the automatic running of control complete machine fluid pressure line and electric fixtures.
One joint lifting mechanism, 3 one ends are connected on the mechanism rack assembly 2 by hinged ear seat, and the other end is connected with lifting fluid cylinder 7, and lifting fluid cylinder 7 drives one joint lifting mechanism 3, two joint telescoping mechanisms 9, main skid assembly 4 hoist, land.Support assembly 2 both sides respectively are equipped with a pivoted arm assembly 5, and each pivoted arm assembly 5 is provided with a shaft type mechanical rocker arm, and each pivoted arm is provided with two material loading arms.Material loading fluid cylinder 16 is installed in support assembly 2 middle parts, and its piston outer end is connected with pivoted arm assembly 5.The material loading arm comprises the back-moving spring 53 of installing in material loading arm main body 54 and middle part thereof, bearing pin 52 and the movable stirring hook 51 that an end is installed, and the other end is provided with installing hole, and this installing hole is installed mutually with bearing pin and the seat on blanking rack 13 tops.The side of support assembly 2 is equipped with at least one pipe bar transit bridge 12.Blanking rack 13 tops are equipped with stock shelf 8.Blanking transition bridge 17 1 ends are connected with blanking rack 13 tops, and the other end contacts with pipe framed bent 15.
During the operation material loading, lifting fluid cylinder 7 is in retracted mode, and pivoted arm assembly 5 is in falling state, and main skid assembly 4 is in rollover states.To manage the oil pipe of bar transit bridge 12 delivers in the main skid assembly 4 through pivoted arm, stock shelf 8 by pivoted arm assembly 5.Main skid assembly 4 is ajusted.Then, lifting liquid cylinder piston bar stretches out, one the joint lifting mechanism 3 rotates to an angle around the tail end pin joint, cause its front end to be lifted to correct position after, lifting liquid cylinder piston bar stops to stretch out.Subsequently, under the extending cylinder effect, two joint telescoping mechanisms, 9 band sliding way overturning seats 6, main skid assembly 4, oil pipe stretch out in a joint lifting mechanism 3 inside, and the oil pipe front end is sent into the rig floor correct position, and feeding process is finished.
During the operation blanking, lifting fluid cylinder 7 is in the state of stretching out, and two joint telescoping mechanism assemblies 9 are in the state of stretching out, and main skid assembly 4 is in the state of ajusting.Remove stock shelf 8 from blanking rack 13, the material loading pivoted arm is in the position, whereabouts always.4 upsets of main skid assembly can be rolled to pipe framed bent 15 through blanking rack 13, blanking transition bridge 17 with oil pipe, sucker rod.After oil pipe proposed in the oil-water well, shackle, then the oil pipe tail end is placed on the main skid assembly 4, oil pipe glides along the main skid assembly, two joint telescoping mechanisms 9 drive main skid assembly 4, oil pipe is retracted in the joint lifting mechanism 3, after two joint lifting mechanisms retractions put in place, elevating ram 7 was retracted, and drove a joint lifting mechanism 3 and fell after rise to the home position.Subsequently, 4 upsets of main skid assembly from main skid assembly 4 interior overturns, to pipe framed bent 15, are finished conveying and the discharging of an oil pipe through blanking rack 13 with oil pipe.The utility model everything can be finished or be finished by the automatic control of Hydraulic Station 1 interior set PLC programmable control unit by manual control.
Claims (8)
1. workover treatment pipe bar conveyer, comprise the Hydraulic Station assembly, support assembly, one joint lifting mechanism, the main skid assembly, the pivoted arm assembly, the slideway overturning seat, the lifting fluid cylinder, stock shelf, two joint telescoping mechanisms, be transferred pipe, rig floor, pipe bar transit bridge, blanking rack, supporting leg, the pipe framed bent, the material loading fluid cylinder, the blanking transition bridge, an end that it is characterized in that a described joint lifting mechanism is installed on the support assembly, the other end is installed mutually by lifting fluid cylinder and support assembly, the support assembly two ends are equipped with supporting leg, blanking rack, the pivoted arm assembly is installed on the support assembly both sides, stock shelf is installed on blanking rack top, and pipe bar transit bridge is installed on left side or the right side of support assembly; Described main skid assembly is installed mutually with slideway overturning seat, two joint telescoping mechanisms in turn, two joint telescoping mechanisms are installed in the joint lifting mechanism, slideway overturning seat, main skid assembly stretch out, retract in a joint lifting mechanism, overturn, ajust on two joint telescoping mechanisms; Be provided with the PLC programmable control unit in the described Hydraulic Station assembly, the automatic running of control complete machine fluid pressure line and electric fixtures.
2. workover treatment pipe bar conveyer according to claim 1, it is characterized in that a described joint lifting mechanism one end is connected on the mechanism rack assembly by hinged ear seat, the other end is connected with the lifting fluid cylinder, and lifting fluid cylinder drive one joint lifting mechanism, two joint telescoping mechanisms, main skid assembly hoist, land.
3. workover treatment pipe bar conveyer according to claim 1 is characterized in that described support assembly both sides respectively are equipped with a pivoted arm assembly, and each pivoted arm assembly is provided with a shaft type mechanical rocker arm, and each pivoted arm is provided with two material loading arms.
4. workover treatment pipe bar conveyer according to claim 1 is characterized in that described material loading fluid cylinder is installed in the support assembly middle part, and its piston outer end is connected with the pivoted arm assembly.
5. the workover treatment pipe bar conveyer shown in according to claim 3, it is characterized in that described material loading arm comprises the back-moving spring of material loading arm main body and middle part installation thereof, bearing pin and the movable stirring hook that an end is installed, the other end is provided with installing hole, and this installing hole is installed mutually with bearing pin and the seat on blanking rack top.
6. workover treatment pipe bar conveyer according to claim 1 is characterized in that the side of described support assembly is equipped with at least one pipe bar transit bridge.
7. workover treatment pipe bar conveyer according to claim 1 is characterized in that described blanking rack top is equipped with stock shelf.
8. workover treatment pipe bar conveyer according to claim 1 is characterized in that described blanking transition bridge one end is connected with blanking rack top, and the other end contacts with the pipe framed bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358988 CN202832293U (en) | 2012-07-24 | 2012-07-24 | Well repair operation pipe rod conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220358988 CN202832293U (en) | 2012-07-24 | 2012-07-24 | Well repair operation pipe rod conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832293U true CN202832293U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220358988 Expired - Fee Related CN202832293U (en) | 2012-07-24 | 2012-07-24 | Well repair operation pipe rod conveyor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202832293U (en) |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899256A (en) * | 2014-04-09 | 2014-07-02 | 海南艾科瑞特石油工程技术研究院有限公司 | Swing arm type pipe rod spatial slideway |
| CN104278956A (en) * | 2013-07-12 | 2015-01-14 | 中国石油天然气股份有限公司 | Oil pipe hydraulic lifting device and using method |
| CN105507829A (en) * | 2016-01-18 | 2016-04-20 | 李晓峰 | Automatic control operating platform used for workover rig and provided with automatic tubing string pulling system |
| CN105672912A (en) * | 2016-03-26 | 2016-06-15 | 山东胜利石油装备产业技术研究院 | Novel ground discharging equipment for oil pipe |
| CN106121558A (en) * | 2016-08-04 | 2016-11-16 | 山东拓博节能科技有限公司 | Multi-function chain type transmits hydraulic leg |
| CN106368629A (en) * | 2016-07-27 | 2017-02-01 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Automatic device for workover treatment |
| CN106429428A (en) * | 2016-07-27 | 2017-02-22 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Ground integrated conveyer |
| CN106639924A (en) * | 2017-01-05 | 2017-05-10 | 吴立中 | Oil tube jacking device and method of using same to operate |
| CN106639921A (en) * | 2016-07-27 | 2017-05-10 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Automatic tube and rod conveyor |
| CN107401384A (en) * | 2016-05-20 | 2017-11-28 | 中国石油天然气股份有限公司 | An oil pipe handling device |
| CN108005593A (en) * | 2018-01-10 | 2018-05-08 | 成都聚深科技有限责任公司 | Light maintenance operation automatic tube-arranging measuring device |
| CN108425645A (en) * | 2018-04-10 | 2018-08-21 | 江苏申利达机械制造有限公司 | A kind of small-sized tube rod conveying equipment and its working method |
| CN106522860B (en) * | 2017-01-06 | 2018-12-25 | 扬州金帆科技发展有限公司 | A kind of hydraulic catwalk ejector sleeve driving mechanism |
| CN109519132A (en) * | 2018-11-26 | 2019-03-26 | 山东泽元石油机械有限公司 | A kind of Drill-pipe conveyed machine and board migration device |
| CN111075370A (en) * | 2020-02-10 | 2020-04-28 | 扬州恒精机械有限公司 | Oil gas well operation pipe pole conveyor |
| CN111155946A (en) * | 2020-02-10 | 2020-05-15 | 扬州恒精机械有限公司 | Pipe and rod operation method for oil and gas well workover |
| CN112412363A (en) * | 2020-11-27 | 2021-02-26 | 山东泽元石油机械有限公司 | External Power Pipe Rod Conveyor |
| CN112878934A (en) * | 2021-01-13 | 2021-06-01 | 四川宏华石油设备有限公司 | Marine power catwalk, marine module drilling machine adopting marine power catwalk and moving method of marine module drilling machine |
| CN113863874A (en) * | 2021-09-30 | 2021-12-31 | 中国石油天然气股份有限公司 | Intelligent oil pipe lifting and pushing device for minor repair operation |
| CN114909097A (en) * | 2022-05-06 | 2022-08-16 | 黄山华能石化机械有限公司 | A pipe rod conveyor for oil drilling and workover operations |
-
2012
- 2012-07-24 CN CN 201220358988 patent/CN202832293U/en not_active Expired - Fee Related
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104278956A (en) * | 2013-07-12 | 2015-01-14 | 中国石油天然气股份有限公司 | Oil pipe hydraulic lifting device and using method |
| CN103899256B (en) * | 2014-04-09 | 2016-03-09 | 海南艾科瑞特石油工程技术研究院有限公司 | A kind of swing arm pipe bar space slideway |
| CN103899256A (en) * | 2014-04-09 | 2014-07-02 | 海南艾科瑞特石油工程技术研究院有限公司 | Swing arm type pipe rod spatial slideway |
| CN105507829A (en) * | 2016-01-18 | 2016-04-20 | 李晓峰 | Automatic control operating platform used for workover rig and provided with automatic tubing string pulling system |
| CN105672912A (en) * | 2016-03-26 | 2016-06-15 | 山东胜利石油装备产业技术研究院 | Novel ground discharging equipment for oil pipe |
| CN105672912B (en) * | 2016-03-26 | 2018-07-06 | 山东胜利石油装备产业技术研究院 | Arrange equipment to a kind of new-type oil pipe |
| CN107401384A (en) * | 2016-05-20 | 2017-11-28 | 中国石油天然气股份有限公司 | An oil pipe handling device |
| CN107401384B (en) * | 2016-05-20 | 2019-10-11 | 中国石油天然气股份有限公司 | Oil pipe carrying device |
| CN106368629A (en) * | 2016-07-27 | 2017-02-01 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Automatic device for workover treatment |
| CN106429428A (en) * | 2016-07-27 | 2017-02-22 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Ground integrated conveyer |
| CN106639921A (en) * | 2016-07-27 | 2017-05-10 | 胜利油田胜利动力机械集团有限公司石油机械分公司 | Automatic tube and rod conveyor |
| CN106368629B (en) * | 2016-07-27 | 2020-03-10 | 黑龙江精益诚石油机械有限公司 | Workover automation equipment |
| CN106121558A (en) * | 2016-08-04 | 2016-11-16 | 山东拓博节能科技有限公司 | Multi-function chain type transmits hydraulic leg |
| CN106639924A (en) * | 2017-01-05 | 2017-05-10 | 吴立中 | Oil tube jacking device and method of using same to operate |
| CN106522860B (en) * | 2017-01-06 | 2018-12-25 | 扬州金帆科技发展有限公司 | A kind of hydraulic catwalk ejector sleeve driving mechanism |
| CN108005593A (en) * | 2018-01-10 | 2018-05-08 | 成都聚深科技有限责任公司 | Light maintenance operation automatic tube-arranging measuring device |
| CN108425645A (en) * | 2018-04-10 | 2018-08-21 | 江苏申利达机械制造有限公司 | A kind of small-sized tube rod conveying equipment and its working method |
| CN108425645B (en) * | 2018-04-10 | 2024-02-27 | 江苏申利达机械制造有限公司 | Light and small pipe rod conveying equipment and working method thereof |
| CN109519132A (en) * | 2018-11-26 | 2019-03-26 | 山东泽元石油机械有限公司 | A kind of Drill-pipe conveyed machine and board migration device |
| CN111075370A (en) * | 2020-02-10 | 2020-04-28 | 扬州恒精机械有限公司 | Oil gas well operation pipe pole conveyor |
| CN111155946A (en) * | 2020-02-10 | 2020-05-15 | 扬州恒精机械有限公司 | Pipe and rod operation method for oil and gas well workover |
| CN112412363A (en) * | 2020-11-27 | 2021-02-26 | 山东泽元石油机械有限公司 | External Power Pipe Rod Conveyor |
| CN112878934A (en) * | 2021-01-13 | 2021-06-01 | 四川宏华石油设备有限公司 | Marine power catwalk, marine module drilling machine adopting marine power catwalk and moving method of marine module drilling machine |
| CN113863874A (en) * | 2021-09-30 | 2021-12-31 | 中国石油天然气股份有限公司 | Intelligent oil pipe lifting and pushing device for minor repair operation |
| CN113863874B (en) * | 2021-09-30 | 2024-02-13 | 中国石油天然气股份有限公司 | An intelligent oil pipe lifting and pushing device for minor repair operations |
| CN114909097A (en) * | 2022-05-06 | 2022-08-16 | 黄山华能石化机械有限公司 | A pipe rod conveyor for oil drilling and workover operations |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140724 |
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| EXPY | Termination of patent right or utility model |