CN103362462A - Integrated vehicle-mounted snubbing operation workover rig - Google Patents

Abstract

The invention provides an integrated vehicle-mounted snubbing operation workover rig and aims to overcome the defects that existing snubbing operation equipment is complex in operation and high in operation cost. An engine, a hydraulic station, a hydraulic system, a winch and a derrick are sequentially installed on a chassis of the vehicle-mounted workover rig from front to back, the derrick is installed at the back of the chassis, the derrick is horizontally arranged during transportation and erected during operation, and a bracket is fixedly mounted at the tail of the chassis; a snubbing operation device and a blowout preventer stack are fixedly installed on the bracket sequentially from front to back; a driller operation box is installed at the lower end of the derrick; a folding driller platform is mounted on the derrick below the driller operation box. The integrated vehicle-mounted snubbing operation workover rig has the advantages that the workover rig is reasonable in design and convenient to operate, integrated carrying and installation, integrated control and integrated operation of snubbing workover operation can be achieved, and the operation efficiency is high; the driller operation position of the folding driller platform is close to a wellhead, the driller view is wide, and the vehicle safe driving requirement is met.

Description

The vehicle-mounted Operating Pressure workover rig of integrated form

Technical field

The present invention relates to a kind of vehicle carried well repairing machine, especially relate to the vehicle-mounted Operating Pressure workover rig of a kind of integrated form.

Background technology

Snubbing serving is to operate the special operation method that special installation plays lower tubular column by the professional in environment with pressure, task difficulty is large, safe construction requires high, except will be to the operation controls such as the diesel engine of workover rig, winch, brake, combination hook-block, auxiliary equipment, also need to operate the executing agencies such as blowout preventer set, traveling slip, stationary slip, raising cylinder of operation device under pressure in the operation process.In order to realize safety work, also to carry out Real Time Monitoring to the working condition of system such as system pressure, equilibrium pressure, down-hole pressure etc.

Operating Pressure equipment can be divided into well head part, lifting means and power drive three parts, be divided into split type, free-standing by form of structure, wherein split type operation device under pressure wellsite applications area takies larger, tubing string removes and will be equipped with workover rig and finish, and transporting, remove peace needs haulage vehicle and crane auxiliary.The repeated disassembled and assembled of hydraulic system so that the hydraulic oil leakage is serious, and easily causes the system failure.Stand alone type operation device under pressure floor space is little, but install, the various vehicles of traffic requirements are auxiliary finishes, load-carrying ability is little, it is low that tubing string removes efficient.In addition, free-standing operation device under pressure one-time investment is large, and two cover operation devices turn round simultaneously in the operation process, and fuel consume is large, and operating cost is high.Two covering devices palpus coordinative construction must be by many people's operations during operation, and difficulty is large, and security risk is high.

Split type operation device under pressure working depth is high, the height of operation control panel is 4.5～6m, exceed workover rig driller operating position and (be generally 1.3～3.5m), therefore two complete equipments both sides when work cooperate difficulty, and especially the workover rig driller is difficult to see the working condition of operation device under pressure and workover rig combination hook-block.The operating system of two covering devices that vehicle-mounted integrated form operation device under pressure is integrated is for the working depth that adapts to operation device under pressure must be fixed on the driller operating position on the workover rig derrick, in order to observe and operation.But owing to being mobile unit, the width of fixed installation driller operating platform will exceed the driving width of chassis vehicle, can't satisfy the road transport requirement.

Summary of the invention

High in order to overcome the complicated operation, the operating cost that have the existence of Operating Pressure equipment now, driller's operating room (platform) position that existing vehicle-mounted Operating Pressure workover rig exists is forward, far away apart from well head, the derrick of holding up during the drilling and repairing machine duty blocks driller's sight line, be not easy to the deficiency of construction operation, the invention provides the vehicle-mounted Operating Pressure workover rig of a kind of integrated form.

The technical solution adopted for the present invention to solve the technical problems is: motor, Hydraulic Station, hydraulic system, winch, derrick are installed on the chassis of the vehicle-mounted Operating Pressure workover rig of integrated form from front to back successively, derrick installation is at the rear portion on chassis, the derrick horizontal positioned during work is holded up derrick during transportation.Afterbody on the chassis is installed with carriage; Be installed with successively from front to back operation device under pressure, blowout preventer set on the carriage; The bottom of derrick is equipped with driller's control box; On the derrick of driller's control box below collapsible driller's platform is installed.Driller's pedal of collapsible driller's platform is fixedly mounted on the rectangular frame; Rectangular frame is equipped with 2 otic placode I near driller's control box one side, and the otic placode by correspondence position on rotary pin shaft and the derrick is connected; Rectangular frame is equipped with 2 otic placode II away from driller's control box one end.Derrick is off working state when being in horizontal positioned, and collapsible driller's platform is that folded state is fixed on the derrick, and driller's pedal is vertically placed, and the otic placode II on the rectangular frame is fixedly connected with by the otic placode of correspondence position on fixed pin shaft and the derrick.Derrick is duty when holding up, and collapsible driller's platform is open mode, driller's pedal horizontal positioned; Otic placode II on the rectangular frame is connected with an end of support bar by bearing pin, and the other end of support bar is connected with the chassis by bearing pin.Be installed with slot more than 2 perpendicular to driller's pedal on the rectangular frame, when collapsible driller's platform was open mode driller pedal horizontal positioned, the guardrail lower end inserted in slot.

Driller's control box is integrated hydraulic control system, the pneumatic control components of vehicle-mounted Operating Pressure workover rig, and by pipeline or connection.Hydraulic system comprises executive component and the pipeline of workover rig, operation device under pressure, blowout preventer set, provides hydraulic power by Hydraulic Station.Chassis, winch, blowout preventer set, operation device under pressure be by motor driven, carries out powershift between parts by power switching device.

When workover rig was in running order, derrick was holded up, carry out construction operation with pressure before, at first remove the fixed connection apparatus of described blowout preventer set and carriage after, the hook of traveling system is installed in blowout preventer set lifting on the well head; Then remove the fastening devices of operation device under pressure and carriage, the hook of traveling system is fixedly mounted on the operation device under pressure lifting on the flange of blowout preventer set upper end, can carry out construction operation with pressure afterwards.

The invention has the beneficial effects as follows, reasonable in design, simple in structure, easy for installation, platform size is unrestricted, and the driller operating space is large; Driller's operating position is more near well head, and driller's sight line is open, can observe easily well head operation and hook moving situation, is convenient to deal with an urgent situation, and the complete machine processing safety improves; The complete machine travel position is not super wide, meets the vehicle safe driving requirement, guarantees the safety of equipment road transport; Realize the integrated peace of removing of workover treatment with pressure, integrated control, integrated operation, operating efficiency is high, safe and reliable.

Description of drawings

Fig. 1 is the vehicle-mounted Operating Pressure workover rig of integrated form of the present invention schematic diagram.

Fig. 2 is the vehicle-mounted Operating Pressure workover rig of integrated form of the present invention working state schematic representation.

Fig. 3 is the collapsible driller's platform structure of the present invention schematic diagram

Fig. 4 is collapsible driller's platform driller pedal schematic diagram among the present invention.

Among the figure: 1. chassis, 2. derrick, 4. motor, 5. hydraulic system, 6. winch, 7. driller's control box, 8. operation device under pressure, 9. blowout preventer set, 10. pull bar fastening devices, 11. Hydraulic Stations, 12. hooks, 13. well heads, 14. carriage, 15. support bars, 16. rotary pin shafts, 17. fixed pin shafts, 18. driller's pedal, 19. rectangular frames, 20. collapsible driller's platforms, 21. otic placode I, 22. otic placode II, 23. slots, 24. guardrails.

The specific embodiment

The invention will be further described below in conjunction with accompanyingdrawing 1～3 and embodiment.But what those skilled in the art should know is to the invention is not restricted to the listed specific embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.

Referring to Fig. 1.Motor 4,Hydraulic Station 11,hydraulic system 5, winch 6,derrick 2 are installed on thechassis 1 of the vehicle-mounted Operating Pressure workover rig of integrated form of the present invention from front to back successively,derrick 2 is installed in the rear portion onchassis 1,derrick 2 horizontal positioned during work are holded upderrick 2 during transportation.The afterbody onchassis 1 is installed withcarriage 14; Be installed with successively from front to back operation device under pressure 8, blowout preventer set 9 on thecarriage 14, usually operation device under pressure 8 lower ends are bolted on thecarriage 14, the middle part is above to also have pullbar fastening devices 10 and derrick to fix, so that operation device under pressure 8 stable placements in the transportation;Blowout preventer set 9 is bolted usually on carriage 14.The bottom ofderrick 2 is equipped with driller'scontrol box 7, and driller'scontrol box 7 installation car carrier bands are pressed the left side of operation workover rig usually; On driller'scontrol box 7 belowderricks 2 collapsible driller'splatform 20 is installed.

Driller's control box of thepresent invention 7 is integrated hydraulic control system, the pneumatic control components of vehicle-mounted Operating Pressure workover rig, and by pipeline or connection.Hydraulic system 5 comprises executive component and the pipeline of workover rig, operation device under pressure 8,blowout preventer set 9, provides hydraulic power by Hydraulic Station 11.Chassis 1, winch 6,blowout preventer set 9, operation device under pressure 8 are driven bymotor 4, carry out powershift between parts by power switching device.

Referring to Fig. 3.The collapsible driller'splatform 20 of the present invention comprises driller'spedal 18,rectangular frame 19 andguardrail 24 etc.Driller'spedal 18 is selected the glass fiber reinforced plastic Turbogrid plates usually; Driller'spedal 18 is fixedly mounted on the rectangular frame 19.Rectangular frame 19 is equipped with 2 otic placode I21 near driller'scontrol box 7 one sides, and is connected by the otic placode of correspondence position onrotary pin shaft 16 and the derrick 2.Rectangular frame 19 is equipped with 2 otic placode II22 away from driller'scontrol box 7 one ends.

Whenderrick 2 is in horizontal positioned for off working state, collapsible driller'splatform 20 is fixed on thederrick 2 for folded state, driller'spedal 18 is vertically placed, and the otic placode II22 on therectangular frame 19 is fixedly connected with by the otic placode of correspondence position on fixed pin shaft 17 and thederrick 2.

Whenderrick 2 was holded up for duty, collapsible driller'splatform 20 was open mode, driller'spedal 18 horizontal positioned; Otic placode II22 on therectangular frame 19 is connected with an end of support bar 15 by bearing pin, and the other end of support bar 15 is connected with the chassis by bearing pin.Be installed withslot 23 more than 2 perpendicular to driller'spedal 18 on therectangular frame 19, when collapsible driller'splatform 20 was openmode driller pedal 18 horizontal positioned,guardrail 24 inserted inslot 23.

Whenderrick 2 is in horizontal positioned for off working state, place in addition after support bar 15, guardrail 24 dismountings, reduce taking of space.

When vehicle-mounted Operating Pressure workover rig was in running order,derrick 2 erected, dismounting fixed pin shaft 17, andrectangular frame 19 is opened 90 ° takerotary pin shaft 16 as axle along dotted arrow direction in the accompanyingdrawing 2, and driller'spedal 18 is in level; One end of support bar 15 is connected by bearing pin with otic placode II22 on therectangular frame 19, and the other end of support bar 15 is connected withchassis 1, and support bar 15 has an angle withchassis 1 usually, to guarantee the stability of driller's pedal 18.Guardrail 24 is installed at last, and there is the plug corresponding withslot 23 on therectangular frame 19 lower end ofguardrail 24, guarantees the operation of driller's personal security after inserting.

Referring to Fig. 2.When the vehicle-mounted Operating Pressure workover rig of integrated form of the present invention is prepared construction operation, atfirst derrick 2 is holded up; Then, remove to be used for the fixedly bolt of blowout preventer set 9, to be lifted by crane by thehook 12 of traveling system on thederrick 2blowout preventer set 9 is installed on thewell head 13; The fixing disassembling bolts of operation device under pressure 8 again, and remove the constraint of pullbar fastening devices 10, thehook 12 of traveling system is fixedly mounted on operation device under pressure 8 liftings on the flange of blowout preventer set 9 upper ends, can carry out construction operation with pressure.

The vehicle-mounted Operating Pressure workover rig of integrated form of the present invention adopts cover power set, a cover hydraulic system, and a cover operating system is so that power and hydraulic system combine together.Operation device under pressure is transported by the workover rig chassis car, carrying out the scene by workover rig traveling system and auxiliary equipment installs, the hydraulic system of operation device under pressure, control system do not need dismounting, the removal of home workload is installed greatly reduces, and further improve equipment dependability.Collapsible driller's platform is fixedly mounted on the derrick, and is identical with the operation device under pressure height, and driller's operation can to greatest extent near the well head operating position, solve driller's sight line problem.Driller's operating platform adopts accordion structure, during field operation platform is opened, and installs fixing; Fulfil assignment, fold during driving states and be fixed on the derrick side, guaranteed the traffic safety of mobile device.

Advantage of the present invention is:

1, the job safety performance is high, and operation device under pressure and workover rig operation concentrate on driller's control box, by people's complete operation control, has avoided two people to cooperate misoperation or the error that causes; Driller's operating position is near well head, and driller's sight line is open, can observe easily well head operation and hook motion conditions, is convenient to deal with an urgent situation.

2, operating efficiency is high.Operation device under pressure is installed at the workover rig chassis car, fixes by the derrick pull bar, with workover rig one transportation, do not need to dismantle various pipelines, removes peace speed fast.

3, operating cost reduces.The power set of workover rig, operation device under pressure common bed car, fuel consume is few; Device context is installed by Operating Pressure workover rig complete independently, has reduced the hold facility amount.

4, labor strength is low.Hydraulic line need not on-the-spot the connection, has saved a large amount of manpowers and on-the-spot operating reserves time.

5, driller's operating platform adopts accordion structure, during operation platform is opened, and installs fixing; After fulfiling assignment, fold during driving states and be fixed on the derrick side, guaranteed the traffic safety of mobile device.

It should be noted that above-described embodiment is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.

Claims (9)

1. vehicle-mounted Operating Pressure workover rig of integrated form, motor, Hydraulic Station, hydraulic system, winch, derrick are installed on the chassis of vehicle carried well repairing machine from front to back successively, and derrick installation is at the rear portion on chassis, derrick horizontal positioned during transportation, during work derrick is holded up, be it is characterized in that:

Afterbody in described chassis (1) is installed with carriage (14);

Be installed with successively from front to back operation device under pressure (8), blowout preventer set (9) on the described carriage (14);

The bottom of described derrick (2) is equipped with driller's control box (7); On driller's control box (7) below derrick (2) collapsible driller's platform (20) is installed.

2. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 1, it is characterized in that: driller's pedal (18) of described collapsible driller's platform (20) is fixedly mounted on the rectangular frame (19); Rectangular frame (19) is equipped with 2 otic placode I (21) near driller's control box (7) one sides, is connected by the otic placode of rotary pin shaft (16) with the upper correspondence position of derrick (2); Rectangular frame (19) is equipped with 2 otic placode II (22) away from driller's control box (7) one ends.

3. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 2, it is characterized in that: described derrick (2) is when being in horizontal positioned for off working state, collapsible driller's platform (20) is fixed on the derrick (2) for folded state, driller's pedal (18) is vertical to be placed, and the otic placode II (22) on the rectangular frame (19) is fixedly connected with by the otic placode of fixed pin shaft (17) with the upper correspondence position of derrick (2).

4. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 2, it is characterized in that: described derrick (2) is when holding up for duty, and collapsible driller's platform (20) is open mode, driller's pedal (18) horizontal positioned; Otic placode II (22) on the rectangular frame (19) is connected by the end of bearing pin with support bar (15), and the other end of support bar (15) is connected with the chassis by bearing pin.

5. according to claim 3 or the vehicle-mounted Operating Pressure workover rig of 4 described integrated forms, it is characterized in that: described rectangular frame (19) is upper to be installed with slot (23) more than 2 perpendicular to driller's pedal (18), when collapsible driller's platform (20) was open mode driller pedal (18) horizontal positioned, guardrail (24) lower end inserted in slot (23).

6. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 1 is characterized in that: described driller's control box (7) is integrated hydraulic control system, the pneumatic control components of vehicle-mounted Operating Pressure workover rig, and by pipeline or connection.

7. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 6, it is characterized in that: described hydraulic system (5) comprises executive component and the pipeline of workover rig, operation device under pressure (8), blowout preventer set (9), provides hydraulic power by Hydraulic Station (11).

8. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 6, it is characterized in that: described chassis (1), winch (6), blowout preventer set (9), operation device under pressure (8) are driven by motor (4), carry out powershift between parts by power switching device.

9. the vehicle-mounted Operating Pressure workover rig of described integrated form according to claim 1 is characterized in that:

When described workover rig was in running order, derrick (2) was holded up, carry out construction operation with pressure before,

At first, remove the fixed connection apparatus of described blowout preventer set (9) and carriage (14) after, the hook of traveling system (12) is installed in blowout preventer set (9) lifting on the well head (13);

Then, remove the fastening devices of described operation device under pressure (8) and carriage (14), the hook of traveling system (12) is fixedly mounted on operation device under pressure (8) lifting on the flange of blowout preventer set (9) upper end.

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