CN113585989A - Pipe handling system for continuous tripping drill rig - Google Patents
Pipe handling system for continuous tripping drill rig Download PDFInfo
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- CN113585989A CN113585989A CN202111042909.XA CN202111042909A CN113585989A CN 113585989 A CN113585989 A CN 113585989A CN 202111042909 A CN202111042909 A CN 202111042909A CN 113585989 A CN113585989 A CN 113585989A
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- tong
- slip
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- lifting
- half body
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 82
- 229910052742 iron Inorganic materials 0.000 claims abstract description 41
- 238000005553 drilling Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 22
- 239000000725 suspension Substances 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a pipe tool processing system of a continuous tripping drilling machine, which comprises a pulley track and a pulley, wherein the pulley track and the pulley are arranged on a derrick, a sliding jacking hydraulic cylinder and a sliding beam are arranged on a pulley rack, the top end of the pulley rack is hinged with the top end of a lifting sheet rack, the bottom end of the lifting sheet rack is hinged with the top end of a front upright post of a supporting sliding frame, a continuous rotating iron roughneck and a front opening power slip are arranged in the supporting sliding frame, and a supporting rod is hinged between the front upright post of the supporting sliding frame and the sliding beam; the middle part of the lifting piece frame is provided with a lifting rope head. In the continuous tripping operation process, the continuous rotary iron roughneck and the front opening power slip can alternately enter and exit from the center line position of the wellhead with the top drive system according to the pipe tool operation requirement, so that the suspension of the dynamic pipe column and the efficient treatment of the operation processes of continuous make-up, break-out, mud recovery and the like of the dynamic pipe tool joint can be realized, and the operation efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a pipe processing system of a continuous tripping drilling machine.
Background
The tripping operation is an important operation link in the oil and gas development drilling process, and refers to an operation process of connecting a single or a stand of drill rods to the top end of a drill string in a well so as to be used for the drilling operation of the next stage in the drilling process or taking out a drilling tool in the well from the well at the end of drilling. The traditional drilling mode tripping process comprises the following steps: the top drive clamps the drill rod coupling at the topmost end of the drill string through an elevator connected below the lifting ring of the top drive, the drilling machine lifting system lifts the top drive to lift the drill string in the well by the height of a single or a stand, the lifting system stops continuing lifting, and the lower joint of the drill string is clamped through the slips at the rotary table. After the rotary table slips clamp the drill string, the iron roughneck moves to the position of the center line of the well hole, and a main clamp and a back clamp of the iron roughneck respectively clamp a drill pipe coupling at the lower connection part of the drill string and carry out buckle breaking operation. After the thread-breaking operation is finished, the main tong loosens the clamping of the drill rod coupling, and the thread-turning device arranged on the upper part of the main tong clasps the drill rod pipe body and carries out thread-turning operation. And after the screwing is finished, the back clamp and the screwing device of the iron roughneck loosen the clamping of the drill column and withdraw from the position of the central line of the well hole. After the drill pipe joint finishes the tripping operation, the slurry blowout prevention box moves to the position of a borehole and tightly embraces and seals an upper coupling and a lower coupling connected with the lower part of the drilling tool through two half bodies of the blowout prevention box. After the joint is sealed, the upper part of the top drive lifting drill string is broken out of a single or a stand, and the blowout prevention box recovers residual mud in the upper drill rod. After the mud is recovered, the upper drill rod is placed into the drill rod box under the cooperation of the top drive and the pipe discharging machine, so that the single or vertical pipe pulling operation is completed, and the drilling process is the reverse process of the drilling pulling process.
When the traditional drilling operation is switched among operation links, after an operation device in the previous operation link finishes an operation task, an operation object needs to be released and reset to remove occupation of an operation position, the operation device in the next operation link needs to carry out necessary work preparation and positioning actions, all the links are operated in series, the whole operation process is discontinuous, the operation consumes long time, the operation program is complex, misoperation is easy to occur, and the like.
Continuous tripping operation is a new drilling operation form, can complete continuous and rapid tripping operation of a drilling pipe, and has no pause in the continuous movement of a drill column in the whole tripping process. The operation mode can greatly improve the drilling operation efficiency, reduce the operation cost, realize the full automation of the drilling operation process, avoid the drilling bench worker and the derrick worker, avoid the injury of personnel and is the development trend of the mode of the future drilling operation.
The continuous tripping requires that the top drive system and the continuous tripping pipe tool processing system which are matched with each other have the capacity of entering and exiting the center line position of the wellhead at the same time, so as to meet the requirement that the pipe tool processing system uninterruptedly trips and drops the drilling pipe tool. When the continuous tripping operation mode is adopted, the pipe is required to be in a space with limited height of the derrick in the moving process, and the operations of make-up and break-out of the joint, slurry recovery, suspension lifting and the like are realized.
Disclosure of Invention
The invention designs a pipe tool processing system of a continuous tripping drilling machine aiming at the continuous tripping operation form, can realize continuous screwing and unscrewing and mud recovery operation of a pipe tool joint by continuously rotating an iron roughneck and a front opening power slip, can realize suspension of a dynamic pipe column by the front opening slip, can enter and exit a well head center line position according to the operation requirement, can move along a pulley track under the traction of a lifting system, realizes the relative fixation of the pipe tool processing device and the dynamic pipe column position, and can realize the operation requirement of continuous tripping under the coordination of a top drive.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a pipe processing system of a continuous tripping drilling rig comprises a pulley track arranged on a derrick, wherein a pulley is arranged in the pulley track, the pulley comprises pulley traveling wheels and pulley guide wheels which are arranged at two ends of a pulley frame, the pulley traveling wheels and the pulley guide wheels are clamped on the pulley track, jacking sliding devices are arranged on vertical beams at two sides of the pulley frame and comprise two sliding jacking hydraulic cylinders and a sliding beam, cylinder bodies of the two sliding jacking hydraulic cylinders are respectively fixed on the upper parts of two symmetrical vertical beams of the pulley frame, the piston ends of the sliding jacking hydraulic cylinders are connected with one end of the sliding beam, and the sliding beam is clamped on the vertical beam of the pulley frame; the top end of the pulley rack is hinged with the top end of the lifting sheet frame, the bottom end of the lifting sheet frame is hinged with the top end of a front upright post of the supporting sliding frame, the continuous rotary iron roughneck and the front opening power slip are arranged in the supporting sliding frame, and a supporting rod is hinged between the front upright post of the supporting sliding frame and the sliding beam; the middle part of the lifting sheet frame is provided with a lifting rope head which is connected with a steel wire rope of a lifting system of the drilling machine.
Preferably, a wear-resisting plate is arranged between the sliding beam and the pulley frame.
Preferably, the continuous rotary iron roughneck comprises a main tong and a back-up tong which are arranged on a support sliding frame, the back-up tong is positioned below the main tong and comprises a main tong right-side half body and a main tong left-side half body which are hinged to a main tong moving frame through pin shafts respectively, the rear ends of shells of the main tong right-side half body and the main tong left-side half body are connected with the piston rod ends of two main tong opening and closing hydraulic cylinders respectively, the cylinder bodies of the main tong opening and closing hydraulic cylinders are arranged on the main tong moving frame, the left end and the right end of the main tong moving frame are clamped on two rear upright posts of the support sliding frame respectively, the upper parts of the main tong right-side half body and the main tong left-side half body are connected with the cylinder body end and the piston rod end of a hydraulic oil pump cylinder through hydraulic pump cylinder fixing pin shafts respectively, and the opening and closing of the main tong right-side half body and the main tong left-side half body drive the hydraulic oil pump cylinder to stretch; the back-up tong comprises a back-up tong right-side half body and a back-up tong left-side half body which are hinged to a back-up tong moving frame through pin shafts respectively, the bottoms of the back-up tong right-side half body and the back-up tong left-side half body are connected with a cylinder body end and a piston rod end of a back-up tong opening and closing hydraulic cylinder respectively, mud splash-proof rubber plates are mounted at the top of the outer edges of the back-up tong right-side half body and the back-up tong left-side half body respectively, the left end and the right end of the back-up tong moving frame are clamped on two rear stand columns of a supporting sliding frame respectively, the rear side wall of the back-up tong moving frame is connected with one end of a suspension hydraulic cylinder, and the other end of the suspension hydraulic cylinder is fixed on a rear cross beam of the supporting sliding frame; and a coupling compensation hydraulic cylinder is arranged between the back-up tong moving rack and the main tong moving rack.
Preferably, the structure of the left half body of the back-up tong is symmetrical to that of the right half body of the back-up tong, the middle part of the left half body of the back-up tong is provided with a back-up tong clamping component, the upper end surface of the back-up tong clamping component is provided with a semicircular back-up tong drill rod sealing plate, the back-up tong drill rod sealing plate is fixed on a semicircular slurry upper cover plate positioned on the upper surface of the left half body of the back-up tong through a bolt, the shape and the opening radian of the back-up tong drill rod sealing plate are matched with the outer wall of a drill rod, and a back-up tong sealing rubber strip is arranged on the edge of the slurry upper cover plate, which is contacted with the right half body of the back-up tong; a mud groove is processed between the inner wall and the outer wall of the back-up tong shell of the left half body of the back-up tong, a mud outflow hole is formed in the bottom surface of the mud groove, the outer side of the mud outflow hole is connected with one end of a mud backflow pipe, and the other end of the mud backflow pipe is connected with a mud circulating system; the top end of the outer side wall of the mud splash-proof rubber plate is connected with the piston ends of a plurality of rubber plate jacking hydraulic cylinders, and the cylinder bodies of the rubber plate jacking hydraulic cylinders are fixed on the outer side wall of the left half body of the back-up tong; the back-up tong clamping assembly comprises three back-up tong clamping hydraulic cylinders which are arranged on the fixed seat, hydraulic control pipelines of the back-up tong clamping hydraulic cylinders are laid in an annular space between the back-up tong clamping assembly and the inner wall of the back-up tong shell and are connected with a hydraulic system outside the system through hydraulic pipeline holes which are formed between the inner wall and the outer wall of the back-up tong shell, and the hydraulic pipeline holes are mutually isolated from the mud tank; the cylinder body end of the back-up tong clamping hydraulic cylinder is connected with the back-up tong tooth holder, and the front end of the back-up tong tooth holder is provided with the back-up tong tooth body.
Preferably, the right half body of the main tong is symmetrical to the left half body of the main tong in structure, and a semicircular rotary clamping assembly is arranged in the middle of a main tong shell of the right half body of the main tong; the half gear ring is fixed on the outer edge of the rotary clamping assembly through a bolt, the half gear ring is meshed with a driving gear of a variable displacement hydraulic motor, and the variable displacement hydraulic motor is arranged at the rear part of the right half body of the main tong; the top end of the rotary clamping assembly is connected with the bottom of the pipe supporting mechanism through a pin shaft, and the inner wall of the pipe supporting mechanism is provided with buffer rubber; the center of the bottom of the rotary clamping component is provided with a semicircular annular slurry lower cover plate and a main tong drill rod sealing plate.
Preferably, the rotary clamping assembly comprises three groups of main clamp clamping hydraulic cylinders arranged in the rotary clamping assembly shell, and a main clamp tooth seat and a main clamp tooth body are arranged at the front end of each main clamp clamping hydraulic cylinder; the outer edge of the rotary clamping component shell is provided with a hydraulic component mounting groove, a hydraulic pipeline connected with a main tong clamping hydraulic cylinder is mounted in the hydraulic component mounting groove, an energy accumulator and a mechanical reversing valve are connected onto the hydraulic pipeline, a control rod of the mechanical reversing valve is in contact with a control ring, the control ring is mounted above the main tong shell, the control hydraulic cylinder is mounted between the control ring and the main tong shell, and a piston end of the control hydraulic cylinder retracts to drive the control ring to move downwards.
Preferably, a back-up tong left locking lug seat is mounted at the front end of the back-up tong left half body, a swing hydraulic cylinder is mounted in the back-up tong left locking lug seat, and a piston rod end of the swing hydraulic cylinder is connected with a back-up tong locking shaft; the front end of the right half body of the back-up tong is provided with a right back-up tong locking limiting plate, and the right back-up tong locking limiting plate is provided with a locking hole which is opposite to the back-up tong locking shaft and is adaptive to the shape of the back-up tong locking shaft; the front ends and the tail ends of the right half body and the left half body of the main tong are respectively provided with a strong locking connecting mechanism with the same structure; the strong locking connection mechanism of the right half body of the main tong comprises a right locking groove arranged at the front end of the front side wall of the shell of the rotary clamping assembly and a right locking shaft extending out of the front side wall of the shell of the rotary clamping assembly and positioned at the rear end of the shell of the rotary clamping assembly, and a left locking shaft and a left locking groove are symmetrically arranged on the left half body of the main tong at the opposite positions of the right locking groove and the right locking shaft; the front end of the left locking shaft is provided with a pawl matched with the right locking groove in shape.
Preferably, the front opening power slip comprises a slip seat with an opening at the front end, a slip left lug seat and a slip right lug seat are respectively arranged on two sides of the front opening of the slip seat, the slip left lug seat is connected with the rear end of the slip left door through a left rotating shaft, the slip right lug seat is connected with the rear end of the slip right door through a right rotating shaft, a split bushing is installed in the middle of the slip seat, and a split cover plate is installed on the top end of the split bushing and the upper surface of the slip seat through bolts; the slip lifting support is welded on the rear part of the upper surface of the slip seat and is connected with the slip body through a lifting device; the rear part of the slip seat is provided with a rear cover; the lifting device comprises an L-shaped lifting arm and a lifting pull rod hinged to the front end of the lifting arm, the bottom end of the lifting pull rod is connected with the slip body, the rear end of the lifting arm is hinged to the top end of the slip lifting support, and the cylinder body and the piston rod end of the slip lifting hydraulic cylinder are hinged to the slip lifting support and the lifting arm respectively.
Preferably, the slip body is of a split structure and comprises a middle slip split body, a left slip split body and a right slip split body, and hoisting ear plates are arranged at the tops of the middle slip split body, the left slip split body and the right slip split body; the connecting ear plates on the two side edges of the middle slip split body are respectively hinged with the connecting ear plates on the adjacent side edges of the left slip split body and the right slip split body through a slip split body connecting rotating shaft, and a plurality of torsion springs are arranged on the slip split body connecting rotating shaft.
Preferably, the split type bushing comprises a right bushing split body, a middle bushing split body and a left bushing split body, the right bushing split body and the middle bushing split body are symmetrically assembled on the inner wall of the slip seat, the left bushing split body is installed on the inner wall of the left door, positioning grooves are formed in the middle of the outer side walls of the right bushing split body, the middle bushing split body and the left bushing split body, and bushing positioning lugs matched with the positioning grooves are arranged on the inner wall of the slip seat and the inner wall of the left door; and a slip body position detection sensor is arranged at the middle gap of the right bushing split body and the middle bushing split body.
The invention has the beneficial effects that:
(1) the jacking sliding device is arranged on the pulley, under the action of the sliding jacking hydraulic cylinder, a continuously rotating iron roughneck and a front opening power slip can alternately enter and exit from the center line position of a wellhead with the top drive system through the supporting rod according to operation requirements to perform pipe tool processing operation, and the pipe tool processing device can move along the track of the pulley under the traction of the lifting system, so that the relative fixation of the pipe tool processing device and the position of a dynamic pipe column is realized, and conditions are provided for pipe tool processing; under the action of pipe tool processing equipment such as a continuous rotary iron roughneck, a front opening power slip and the like, the invention realizes that the dynamic pipe column can be suspended and the dynamic pipe tool joint can be continuously buckled and unbuckled, mud can be recycled and the like in one operation position;
(2) according to the invention, the continuous rotating iron roughneck is arranged on the supporting sliding frame, so that the continuous rotation between the operation links of screwing-fastening, and unscrewing-screwing of the pipe is realized, and the operation efficiency is greatly improved; the continuous rotary iron roughneck integrates the function of mud recovery, and overcomes the defects that the conventional shackle equipment and mud recovery equipment need to alternately enter and exit from the position of a wellhead during operation, and the working efficiency is low;
(3) the front opening power slip is arranged on the supporting sliding frame, the dynamic pipe tool is clamped, so that the pipe column can be lifted and lowered, and conditions are provided for a continuous rotary iron roughneck to carry out dynamic pipe tool make-up and break-out operations;
(4) the continuous rotary iron roughneck and the front opening power slip both have the function of lateral opening, so that a pipe column can enter the system from one side of the continuous rotary iron roughneck and the front opening power slip, and the purpose of continuously processing the pipe in a derrick with limited height is realized.
Drawings
FIG. 1 is a schematic structural view of a support skid frame according to the present invention in an extended state;
FIG. 2 is a schematic view of the support skid frame of FIG. 1 in a retracted state;
FIG. 3 is a schematic view of the pulley of FIG. 1;
FIG. 4 is a schematic structural view of the trolley road wheels and trolley guide wheels of FIG. 3;
FIG. 5 is a schematic structural view of the jacking skid device in FIG. 1;
FIG. 6 is a schematic view of a continuous rotary iron roughneck, front opening power slip installation;
FIG. 7 is a schematic view of a continuous rotary iron roughneck;
FIG. 8 is a schematic view showing an opened state of back-up tongs of the continuous rotary iron roughneck;
FIG. 9 is a schematic view of the left half of the back-up tong for a continuous rotary iron roughneck;
FIG. 10 is a schematic view of a back-up tong housing for a continuous rotary iron roughneck;
FIG. 11 is a schematic view of a back-up tong clamping device for a continuous rotary iron roughneck;
FIG. 12 is a schematic view of the opening of the main jaws of the continuous rotary iron roughneck;
FIG. 13 is a schematic view of the right half of the main tong for a continuous rotary iron roughneck;
FIG. 14 is a schematic view of a main tong rotary clamping assembly of a continuous rotary iron roughneck;
FIG. 15 is an enlarged fragmentary view of the main jaw clamping assembly;
FIG. 16 is a schematic view of the strong lock connection of FIG. 15;
FIG. 17 is a schematic view of a front opening power slip configuration;
FIG. 18 is a schematic view of the internal structure of the present invention of FIG. 17;
FIG. 19 is a schematic view of the structure of the slip body of FIG. 17;
FIG. 20 is a schematic structural view of the slip body and split bushing of FIG. 17;
in the figure: 1. tackle rails, 2, jacking displacement devices, 201, sliding beams, 202, wear plates, 203, displacement jacking hydraulic cylinders, 3, support rods, 4, a tackle, 401, travelling wheels, 402, guide wheels, 403, a tackle frame, 5, a lifting cable head, 6, a lifting sheet frame, 7, a support displacement frame, 8, a continuous rotary iron roughneck, 801, a main tong, 802, a back-up tong, 803, a suspension hydraulic cylinder, 804, a coupling compensation hydraulic cylinder, 805, a main tong moving frame, 806, a main tong opening and closing hydraulic cylinder, 807, a back-up tong moving frame, 808, a mud anti-splashing rubber plate, 809, a variable displacement hydraulic motor, 810, a main tong right half body, 811, a main tong left half body, 812, a hydraulic oil pump cylinder, 813, a back-up tong right half body, 814, a back-up tong half body, 815, a back-up tong clamping assembly, 816, a back-up tong sealing plate, 817, a mud upper cover plate, 818, a back-up tong tooth body, 819. back-up tong housing 820, mud trough 821, mud outflow hole 822, rubber plate jacking hydraulic cylinder 823, fixed seat 824, back-up tong clamping hydraulic cylinder 825, back-up tong teeth seat 826, rotary clamping component 827, half-ring gear 828, pipe holding mechanism 829, main tong clamping hydraulic cylinder 830, main tong teeth seat 831, main tong teeth body 832, energy accumulator 833, mechanical reversing valve 834, control ring 835, control hydraulic cylinder 836, back-up tong left locking ear seat 837, swing hydraulic cylinder 838, back-up tong locking shaft 839, back-up tong right locking limit plate 840, right locking groove 841, right locking shaft 842, pawl 843, left locking shaft 9, front opening power slip 901, side door slip right slip 902, slip seat 903, slip lifting seat 904, lifting arm 905, slip body 906, left pull rod 907, lifting slip 908, side door slip 908, rubber plate lifting hydraulic cylinder, rubber plate 823, fixed seat 824, main tong clamping hydraulic cylinder 824, main tong teeth seat 825, back-up tong teeth seat 826, control ring 835, control cylinder 836, back-up tong left locking ear seat 837, swing hydraulic cylinder 836, back-up tong right locking ear seat 903, slip seat, The slip-type hydraulic lifting device comprises a left rotating shaft 909, a slip left lug seat 910, a slip lifting hydraulic cylinder 911, a split type bushing 912, a slip right lug seat 913, a bushing positioning bump 914, a right rotating shaft 915 and a positioning groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
A pipe processing system of a continuous tripping drilling rig comprises a pulley track 1 arranged on a derrick, wherein a pulley 4 is arranged in the pulley track 1, the pulley 4 comprises a pulley walking wheel 401 and a pulley guide wheel 402 which are arranged at two ends of a pulley rack 403, the pulley walking wheel 401 and the pulley guide wheel 402 are clamped on the pulley track 1, a jacking sliding device 2 is arranged on the inner wall of the pulley rack 403, the jacking sliding device 2 comprises two sliding jacking hydraulic cylinders 203 and a sliding beam 201, the cylinder bodies of the two sliding jacking hydraulic cylinders 203 are respectively fixed on the upper parts of two symmetrical vertical beams of the pulley rack 403, the piston ends of the sliding jacking hydraulic cylinders 203 are connected with one end of the sliding beam 201, and the sliding beam 201 is clamped on the vertical beam of the pulley rack 403; the top end of the pulley frame 403 is hinged with the top end of the lifting sheet frame 6, the bottom end of the lifting sheet frame 6 is hinged with the top end of a front upright post of the supporting sliding frame 7, the continuous rotary iron roughneck 8 and the front opening power slip 9 are arranged in the supporting sliding frame 7, and a support rod 3 is hinged between the front upright post of the supporting sliding frame 7 and the sliding beam 201; the middle part of the lifting sheet frame 6 is provided with a lifting rope head 5, and the lifting rope head 5 is connected with a steel wire rope of a lifting system of the drilling machine.
A wear plate 202 is mounted between the sliding beam 201 and the trolley frame 403.
The continuous rotary iron roughneck 8 comprises a main tong 801 and a back-up tong 802 which are installed on a support sliding frame 7, the back-up tong 802 is located below the main tong 801, the main tong 801 comprises a main tong right half body 810 and a main tong left half body 811 which are hinged to a main tong moving frame 805 through pin shafts respectively, the rear ends of the shells of the main tong right half body 810 and the main tong left half body 811 are connected with the piston rod ends of two main tong opening and closing hydraulic cylinders 806 respectively, the cylinder body of the main tong opening and closing hydraulic cylinders 806 is installed on a main tong moving frame 805, the left end and the right end of the main tong moving frame 805 are clamped on two rear upright posts of the support sliding frame 7 respectively, the upper parts of the main tong right half body 810 and the main tong left half body 811 are connected with the cylinder end and the piston rod end of a hydraulic oil pump cylinder 812 through hydraulic pump cylinder fixing pin shafts respectively, and the opening and closing of the main tong right half body 810 and the main tong left half body 811 drive the hydraulic oil pump cylinder 812 to stretch; the back-up tong 802 comprises a back-up tong right half body 813 and a back-up tong left half body 814 which are hinged to a back-up tong moving frame 807 through pin shafts respectively, the bottoms of the back-up tong right half body 813 and the back-up tong left half body 814 are connected with the cylinder end and the piston rod end of a back-up tong opening and closing hydraulic cylinder respectively, mud splash-proof rubber plates 808 are mounted at the top of the outer edges of the back-up tong right half body 813 and the back-up tong left half body 814 respectively, the left end and the right end of the back-up tong moving frame 807 are clamped on two rear upright posts of the supporting sliding frame 7 respectively, the rear side wall of the back-up tong moving frame 807 is connected with one end of a suspension hydraulic cylinder 803, and the other end of the suspension hydraulic cylinder 803 is fixed on a rear cross beam of the supporting sliding frame 7; a collar compensation hydraulic cylinder 804 is mounted between back-up tong moving gantry 807 and main tong moving gantry 805.
The structure of the back-up tong left-side half body 814 and the structure of the back-up tong right-side half body 813 are symmetrical, a back-up tong clamping assembly 815 is installed in the middle of the back-up tong left-side half body 814, a semicircular back-up tong drill rod sealing plate 816 is installed on the upper end face of the back-up tong clamping assembly 815, the back-up tong drill rod sealing plate 816 is fixed on a semicircular mud upper cover plate 817 on the upper surface of the back-up tong left-side half body 814 through bolts, the shape and the opening radian of the back-up tong drill rod sealing plate 816 are matched with the outer wall of a drill rod, and a back-up tong sealing rubber strip is installed on the edge of the mud upper cover plate 817, which is in contact with the back-up tong right-side half body 813; a mud groove 820 is processed between the inner wall and the outer wall of the back-up tong shell 819 of the back-up tong left half body 814, a mud outflow hole 821 is formed in the bottom surface of the mud groove 820, the outer side of the mud outflow hole 821 is connected with one end of a mud return pipe, and the other end of the mud return pipe is connected with a mud circulating system; the top end of the outer side wall of the mud splash-proof rubber plate 808 is connected with the piston ends of a plurality of rubber plate jacking hydraulic cylinders 822, and the cylinder bodies of the rubber plate jacking hydraulic cylinders 822 are fixed on the outer side wall of the left half body 814 of the back-up tong; the back-up tong clamping assembly 815 comprises three back-up tong clamping hydraulic cylinders 824 arranged on a fixed seat 823, hydraulic control pipelines of the back-up tong clamping hydraulic cylinders 824 are laid in an annular space between the back-up tong clamping assembly 815 and the inner wall of the back-up tong shell 819 and are connected with a hydraulic system outside the system through hydraulic pipeline holes formed between the inner wall and the outer wall of the back-up tong shell 819, and the hydraulic pipeline holes are isolated from the mud groove 820; the back-up tong clamping hydraulic cylinder 824 is connected with a back-up tong tooth holder 825 at the cylinder end, and a back-up tong tooth 818 is arranged at the front end of the back-up tong tooth holder 825.
The structure of the main tong right half-body 810 is symmetrical to that of the main tong left half-body 811, and a semicircular rotary clamping assembly 826 is arranged in the middle of a main tong shell of the main tong right half-body 810; a half gear ring 827 is fixed on the outer edge of the rotary clamping assembly 826 through bolts, the half gear ring 827 is meshed with a driving gear of a variable displacement hydraulic motor 809, and the variable displacement hydraulic motor 809 is installed at the rear part of the right half body 810 of the main clamp; the top end of the rotary clamping assembly 826 is connected with the bottom of the pipe supporting mechanism 828 through a pin shaft, and the inner wall of the pipe supporting mechanism 828 is provided with buffer rubber; the center of the bottom of the rotary clamping component 826 is provided with a semicircular annular mud lower cover plate and a main clamp drill rod sealing plate.
The rotary clamping assembly 826 comprises three groups of main clamp clamping hydraulic cylinders 829 which are arranged in the rotary clamping assembly shell, and the front ends of the main clamp clamping hydraulic cylinders 829 are provided with a main clamp tooth holder 830 and a main clamp tooth body 831; the outer fringe of rotatory centre gripping subassembly casing has seted up the hydraulic component mounting groove, installs the hydraulic pressure pipeline that is connected with main pincers clamping hydraulic cylinder 829 in the hydraulic component mounting groove, is connected with energy storage 832 and mechanical switching-over valve 833 on the hydraulic pressure pipeline, and the control lever of mechanical switching-over valve 833 contacts with control ring 834, and control ring 834 is installed in the top of main pincers casing, installs control hydraulic cylinder 835 between control ring 834 and the main pincers casing, and control hydraulic cylinder 835's piston end retraction drives control ring 834 and moves down.
A back-up tong left locking lug seat 8 is arranged at the front end of the back-up tong left half-body 814, a swinging hydraulic cylinder 837 is arranged in the back-up tong left locking lug seat 836, and the piston rod end of the swinging hydraulic cylinder 837 is connected with a back-up tong locking shaft 838; the front end of the right half body 813 of the back-up tong is provided with a right back-up tong locking limiting plate 839, and the right back-up tong locking limiting plate 839 is provided with a locking hole which is opposite to the back-up tong locking shaft 838 and is adaptive to the shape; the front ends and the tail ends of the main clamp right half body 810 and the main clamp left half body 811 are respectively provided with a strong locking connection mechanism with the same structure; the strong locking connection mechanism of the right half body 810 of the main clamp comprises a right locking groove 840 arranged at the front end of the front side wall of the shell of the rotary clamping assembly and a right locking shaft 841 extending out of the front side wall of the shell of the rotary clamping assembly and positioned at the rear end of the shell of the rotary clamping assembly, and a left locking shaft 843 and a left locking groove are symmetrically arranged on the left half body 811 of the main clamp at the opposite positions of the right locking groove 840 and the right locking shaft 841; the front end of the left locking shaft 843 is provided with a pawl 842 adapted to the right locking groove 840.
The front opening power slip 9 comprises a slip seat 902 with an opening at the front end, a left lug seat 909 and a right lug seat 912 are respectively arranged on two sides of the front opening of the slip seat 902, the left lug seat 909 is connected with the rear end of a left door 906 through a left rotating shaft 908, the right lug seat 912 is connected with the rear end of a right door 901 through a right rotating shaft 914, a split bushing 911 is installed in the middle of the slip seat 902, and a split cover plate is installed on the top end of the split bushing 911 and the upper surface of the slip seat 902 through bolts; the slip lifting support 903 is welded at the rear part of the upper surface of the slip seat 902, and the slip lifting support 903 is connected with a slip body 905 through a lifting device; a rear cover is mounted at the rear of the slip bowl 902; the lifting device comprises an L-shaped lifting arm 904 and a lifting pull rod 907 hinged to the front end of the lifting arm 904, the bottom end of the lifting pull rod 907 is connected with a slip body 905, the rear end of the lifting arm 904 is hinged to the top end of a slip lifting support 903, and the cylinder body and the piston rod end of a slip lifting hydraulic cylinder 910 are hinged to the slip lifting support 903 and the lifting arm 904 respectively.
The slip body 905 is of a split structure and comprises a middle slip split body, a left slip split body and a right slip split body, and hoisting ear plates are arranged at the tops of the middle slip split body, the left slip split body and the right slip split body; the connecting ear plates on the two side edges of the middle slip split body are respectively hinged with the connecting ear plates on the adjacent side edges of the left slip split body and the right slip split body through a slip split body connecting rotating shaft, and a plurality of torsion springs are arranged on the slip split body connecting rotating shaft.
The split type bushing 911 comprises a right side bushing split body, a middle bushing split body and a left side bushing split body, the right side bushing split body and the middle bushing split body are symmetrically assembled on the inner wall of the slip seat 902, the left side bushing split body is installed on the inner wall of the slip left door 906, the middle parts of the outer side walls of the right side bushing split body, the middle bushing split body and the left side bushing split body are provided with positioning grooves 915, and bushing positioning lugs 913 matched with the positioning grooves 915 are arranged on the inner wall of the slip seat 902 and the inner wall of the left door 906; and a slip body position detection sensor is arranged at the middle gap of the right bushing split body and the middle bushing split body.
The operation process for continuously lifting the pipe outlet tool comprises the following steps:
the continuous tripping drilling machine is provided with a set of equipment and a set of top drive system, and the two sets of systems are respectively connected to the interior of the derrick through a set of continuous tripping lifting system and a set of top drive lifting system and are arranged oppositely. When the top drive system lifts a pipe tool from a well hole through an elevator, the sliding jacking hydraulic cylinder 203 of the jacking sliding device 2 retracts to drive the sliding beam 201 to slide upwards under the guidance of the wear-resistant block 202, so as to drive the supporting rod 3 to rotate, and the supporting sliding frame 7 arranged on the lifting sheet frame 6 drives the continuous rotating iron roughneck 8 and the front opening power slip 9 to retract, so that the position of a well center line is kept away, and the interference between the device and the well center inner pipe tool is prevented;
when the top drive system lifts the pipe to the height required for the tripping operation, the continuous tripping lifting system drives the pipe lifting device to synchronously move upwards along with the pipe through the lifting rope head 5. Meanwhile, the piston rod of the suspension hydraulic cylinder 803 mounted on the support sliding frame 7 retracts to drive the continuous rotary iron roughneck 8 to move upwards, so as to make room for the slip seat 902 provided by the slip body 905; the main tong 801 of the continuous rotary iron roughneck 8 rotates around a hinge point on the main tong moving rack 805 to open a certain angle under the action of the main tong opening and closing hydraulic cylinder 806, the back tong 802 rotates around a hinge point on the back tong moving rack 807 to open a certain angle under the action of the back tong opening and closing hydraulic cylinder, the lifting arm 904 of the front opening power slip 9 lifts the slip body 905 out of the slip seat 902 through the slip lifting hydraulic cylinder 910, and the slip right side door 901 and the slip left side door 906 of the front opening power slip 9 are opened along with the slip lifting hydraulic cylinder 910; the piston end of the sliding jacking hydraulic cylinder 203 extends downwards to drive the sliding beam 201 to slide downwards along the wear-resisting plate 202, push the supporting rod 3 to rotate and push the supporting sliding frame 7 to the center line position of the well hole; at the moment, the pipe enters the inner cavities of the continuous rotary iron roughneck 8 and the front opening power slip 9 through the front opening of the continuous rotary iron roughneck 8 and the front opening power slip 9;
after the continuous rotary iron roughneck 8 is positioned at the joint of the pipe string to be tripped, the slip right side door 901 and the slip left side door 906 are closed, the slip lifting hydraulic cylinder 910 retracts, the slip body 905 is placed in the slip seat 902, the slip body 905 clamps the pipe body of the pipe string at the lower part of the joint, the left half body and the right half body of the main clamp 801 and the back clamp 802 of the continuous rotary iron roughneck 8 are closed and locked, and the upper and lower drill pipe couplings at the joint of the pipe string are clamped; starting a variable displacement hydraulic motor 809 to drive a half gear ring 827 in a main tong 801 to rotate, so that an upper pipe joint is loosened to complete continuous rotation in the pipe joint opening-screwing process, and the extension of a coupling compensation hydraulic cylinder 804 compensates the length of the threads of the pipe in the screwing process; in the process of disconnecting the drill rod joint, the mud remained in the inner cavity of the upper drill rod flows into a mud recovery system through a mud groove 820 under the action of a mud splash-proof rubber plate 808, a mud lower cover plate, a main clamp drill rod sealing plate, a back clamp drill rod sealing plate 816, a mud upper cover plate 817 and a sealing rubber strip of the continuous rotary iron roughneck 8.
Then, the operator controls the left half body and the right half body of the main tong 801 and the back-up tong 802 to be opened, the piston rod of the suspension hydraulic cylinder 803 is extended out, the continuously rotating iron roughneck 8 and the front opening power slip 9 move downwards along the support sliding frame 7, the pipe joint coupling position is left open, and the pipe arranging system moves away a single pipe with the upper part of the pipe detached; then the top drive lifting system lowers the top drive system, the weight of the pipe string in the well is transferred to the top drive system through the connection of an elevator connected with the top drive lifting ring and the upper end connector of the pipe string, the slip body 905 is lifted out of the slip seat 902 by the slip lifting hydraulic cylinder 910, and the slip right side door 901 and the slip left side door 906 are opened again; the jacking sliding device 2 retracts the supporting sliding frame 7 with the continuous rotating iron driller 8 and the front opening power slip 9 to make the well head center line position be opened. And the top drive lifting system carries the elevator through the lower lifting ring to continuously lift the residual pipe columns in the well bore, and the continuous tripping lifting system is used for lowering the pipe joint to be tripped and treated again to carry out the next tripping operation until the whole process of the tripping operation is completed. The whole processes of screwing on and unscrewing the pipe, recovering slurry and clamping the pipe column are carried out in a dynamic state.
The invention is used for the reciprocal process of the drilling operation process and the tripping operation process.
The jacking sliding device is arranged on the pulley, under the action of the sliding jacking hydraulic cylinder, a continuously rotating iron roughneck and a front opening power slip can alternately enter and exit from the center line position of a wellhead with the top drive system through the supporting rod according to operation requirements to perform pipe tool processing operation, and the pipe tool processing device can move along the track of the pulley under the traction of the lifting system, so that the relative fixation of the pipe tool processing device and the position of a dynamic pipe column is realized, and conditions are provided for pipe tool processing; under the action of pipe tool processing equipment such as a continuous rotary iron roughneck, a front opening power slip and the like, the invention realizes that the dynamic pipe column can be suspended and the dynamic pipe tool joint can be continuously buckled and unbuckled, mud can be recycled and the like in one operation position.
Claims (10)
1. A continuous tripping drill string pipe handling system, characterized by: the lifting device comprises a pulley track (1) arranged on a derrick, wherein a pulley (4) is arranged in the pulley track (1), the pulley (4) comprises pulley travelling wheels (401) and pulley guide wheels (402) which are arranged at two ends of a pulley rack (403), the pulley travelling wheels (401) and the pulley guide wheels (402) are clamped on the pulley track (1), lifting sliding devices (2) are arranged on vertical beams at two sides of the pulley rack (403), each lifting sliding device (2) comprises two sliding lifting hydraulic cylinders (203) and a sliding beam (201), the cylinder bodies of the two sliding lifting hydraulic cylinders (203) are respectively fixed on the upper parts of two symmetrical vertical beams of the pulley rack (403), the piston ends of the sliding lifting hydraulic cylinders (203) are connected with one end of the sliding beam (201), and the sliding beam (201) is clamped on the vertical beam of the pulley rack (403); the top end of the pulley frame (403) is hinged with the top end of the lifting sheet frame (6), the bottom end of the lifting sheet frame (6) is hinged with the top end of a front upright post of the supporting sliding frame (7), a continuous rotating iron roughneck (8) and a front opening power slip (9) are arranged in the supporting sliding frame (7), and a support rod (3) is hinged between the front upright post of the supporting sliding frame (7) and the sliding beam (201); the middle part of the lifting sheet frame (6) is provided with a lifting cable head (5), and the lifting cable head (5) is connected with a steel wire rope of a lifting system of the drilling machine.
2. The continuous trip drill rig pipe handling system of claim 1 wherein: and a wear-resisting plate (202) is arranged between the sliding beam (201) and the pulley frame (403).
3. The continuous trip drill pipe handling system of claim 1 or 2 wherein: the continuous rotary iron roughneck (8) comprises a main tong (801) and a back-up tong (802) which are arranged on a supporting sliding frame (7), the back-up tong (802) is positioned below the main tong (801), the main tong (801) comprises a main tong right half body (810) and a main tong left half body (811) which are respectively hinged on a main tong moving frame (805) through pin shafts, the rear ends of the casings of the main tong right half body (810) and the main tong left half body (811) are respectively connected with the piston rod ends of two main tong opening and closing hydraulic cylinders (806), the cylinder body of the main tong opening and closing hydraulic cylinder (806) is arranged on the main tong moving frame (805), the left end and the right end of the main tong moving frame (805) are respectively clamped on two rear columns of the supporting sliding frame (7), the upper parts of the main tong right half body (810) and the main tong left half body (811) are respectively connected with the cylinder end and the piston rod end of a hydraulic oil pump cylinder (812) through a hydraulic pump cylinder fixing pin shaft, the opening and closing of the right half body (810) and the left half body (811) of the main tong drive the hydraulic oil pump cylinder (812) to extend and retract; the back-up tong (802) comprises a back-up tong right half body (813) and a back-up tong left half body (814) which are hinged to a back-up tong moving rack (807) through pin shafts respectively, the bottoms of the back-up tong right half body (813) and the back-up tong left half body (814) are connected with the cylinder body end and the piston rod end of a back-up tong opening and closing hydraulic cylinder respectively, mud splash-preventing rubber plates (808) are mounted at the top of the outer edges of the back-up tong right half body (813) and the back-up tong left half body (814), the left end and the right end of the back-up tong moving rack (807) are clamped on two rear upright posts of a supporting sliding frame (7) respectively, the rear side wall of the back-up tong moving rack (807) is connected with one end of a suspending hydraulic cylinder (803), and the other end of the suspending hydraulic cylinder (803) is fixed on a rear cross beam of the supporting sliding frame (7); a coupling compensation hydraulic cylinder (804) is arranged between the back-up tong moving frame (807) and the main tong moving frame (805).
4. The continuous trip drill rig pipe handling system of claim 3 wherein: the structure of the back-up tong left-side half body (814) is symmetrical to that of the back-up tong right-side half body (813), a back-up tong clamping assembly (815) is installed in the middle of the back-up tong left-side half body (814), a semicircular back-up tong drill rod sealing plate (816) is installed on the upper end face of the back-up tong clamping assembly (815), the back-up tong drill rod sealing plate (816) is fixed on a semicircular mud upper cover plate (817) located on the upper surface of the back-up tong left-side half body (814) through bolts, the shape and opening radian of the back-up tong drill rod sealing plate (816) are matched with the outer wall of a drill rod, and a back-up tong sealing rubber strip is installed on the edge of the mud upper cover plate (817) which is in contact with the back-up tong right-side half body (813); a mud groove (820) is processed between the inner wall and the outer wall of a back-up tong shell (819) of the back-up tong left half body (814), a mud outflow hole (821) is formed in the bottom surface of the mud groove (820), the outer side of the mud outflow hole (821) is connected with one end of a mud return pipe, and the other end of the mud return pipe is connected with a mud circulating system; the top end of the outer side wall of the mud splash-proof rubber plate (808) is connected with the piston ends of a plurality of rubber plate jacking hydraulic cylinders (822), and the cylinder bodies of the rubber plate jacking hydraulic cylinders (822) are fixed on the outer side wall of the left half body (814) of the back-up tong; the back-up tong clamping assembly (815) comprises three back-up tong clamping hydraulic cylinders (824) arranged on a fixed seat (823), a hydraulic control pipeline of the back-up tong clamping hydraulic cylinders (824) is laid in an annular space between the back-up tong clamping assembly (815) and the inner wall of a back-up tong shell (819) and is connected with a hydraulic system outside the system through a hydraulic pipeline hole formed between the inner wall and the outer wall of the back-up tong shell (819), and the hydraulic pipeline hole is isolated from a mud groove (820); the cylinder body end of the back-up tong clamping hydraulic cylinder (824) is connected with a back-up tong tooth holder (825), and the front end of the back-up tong tooth holder (825) is provided with a back-up tong tooth body (818).
5. The continuous trip drill rig pipe handling system of claim 4 wherein: the structure of the right half body (810) of the main pliers is symmetrical to that of the left half body (811) of the main pliers, and a semicircular rotary clamping assembly (826) is mounted in the middle of a main pliers shell of the right half body (810) of the main pliers; the half gear ring (827) is fixed on the outer edge of the rotary clamping assembly (826) through bolts, the half gear ring (827) is meshed with a driving gear of a variable displacement hydraulic motor (809), and the variable displacement hydraulic motor (809) is installed at the rear part of the right half body (810) of the main clamp; the top end of the rotary clamping assembly (826) is connected with the bottom of the pipe supporting mechanism (828) through a pin shaft, and the inner wall of the pipe supporting mechanism (828) is provided with buffer rubber; the center of the bottom of the rotary clamping assembly (826) is provided with a semicircular annular slurry lower cover plate and a main clamp drill rod sealing plate.
6. The continuous trip drill rig pipe handling system of claim 5 wherein: the rotary clamping assembly (826) comprises three groups of main clamp clamping hydraulic cylinders (829) arranged in a rotary clamping assembly shell, and the front ends of the main clamp clamping hydraulic cylinders (829) are provided with a main clamp tooth seat (830) and a main clamp tooth body (831); the outer fringe of rotatory centre gripping subassembly casing has seted up the hydraulic component mounting groove, install the hydraulic pressure pipeline that is connected with main pincers clamping hydraulic cylinder (829) in the hydraulic component mounting groove, be connected with energy storage ware (832) and mechanical switching-over valve (833) on the hydraulic pressure pipeline, the control lever and the control ring (834) of mechanical switching-over valve (833) contact, the top at main pincers casing is installed in control ring (834), install control hydraulic cylinder (835) between control ring (834) and the main pincers casing, the piston end retraction of control hydraulic cylinder (835) drives control ring (834) and moves down.
7. The continuous trip drill rig pipe handling system of claim 6 wherein: a back-up tong left locking lug seat (836) is mounted at the front end of the back-up tong left half body (814), a swing hydraulic cylinder (837) is mounted in the back-up tong left locking lug seat (836), and the piston rod end of the swing hydraulic cylinder (837) is connected with a back-up tong locking shaft (838); the front end of the right half body (813) of the back-up tong is provided with a right back-up tong locking limiting plate (839), and the right back-up tong locking limiting plate (839) is provided with a locking hole which is opposite to the back-up tong locking shaft (838) and is adaptive to the shape of the back-up tong; the front ends and the tail ends of the main tong right half body (810) and the main tong left half body (811) are respectively provided with a strong locking connecting mechanism with the same structure; the strong locking connection mechanism of the right half body (810) of the main clamp comprises a right locking groove (840) arranged at the front end of the front side wall of the shell of the rotary clamping assembly and a right locking shaft (841) extending out of the front side wall of the shell of the rotary clamping assembly and positioned at the rear end of the shell of the rotary clamping assembly, and a left locking shaft (843) and a left locking groove are symmetrically arranged on the left half body (811) of the main clamp at the opposite positions of the right locking groove (840) and the right locking shaft (841); a pawl (842) matched with the right locking groove (840) in shape is processed at the front end of the left locking shaft (843).
8. The continuous trip drill rig pipe handling system of claim 7 wherein: the front opening power slip (9) comprises a slip seat (902) with an opening at the front end, a slip left lug seat (909) and a slip right lug seat (912) are respectively arranged on two sides of the front opening of the slip seat (902), the slip left lug seat (909) is connected with the rear end of a slip left side door (906) through a left rotating shaft (908), the slip right lug seat (912) is connected with the rear end of a slip right side door (901) through a right rotating shaft (914), a split bushing (911) is installed in the middle of the slip seat (902), and a split cover plate is installed on the top end of the split bushing (911) and the upper surface of the slip seat (902) through bolts; the back part of the upper surface of the slip seat (902) is welded with a slip lifting support seat (903), and the slip lifting support seat (903) is connected with a slip body (905) through a lifting device; the rear part of the slip seat (902) is provided with a rear cover; the lifting device comprises an L-shaped lifting arm (904) and a lifting pull rod (907) hinged to the front end of the lifting arm (904), the bottom end of the lifting pull rod (907) is connected with a slip body (905), the rear end of the lifting arm (904) is hinged to the top end of a slip lifting support seat (903), and a cylinder body and a piston rod end of a slip lifting hydraulic cylinder (910) are hinged to the slip lifting support seat (903) and the lifting arm (904) respectively.
9. The continuous trip drill rig pipe handling system of claim 8, wherein: the slip body (905) is of a split structure and comprises a middle slip split body, a left slip split body and a right slip split body, and lifting lug plates are arranged at the tops of the middle slip split body, the left slip split body and the right slip split body; the connecting ear plates on the two side edges of the middle slip split body are respectively hinged with the connecting ear plates on the adjacent side edges of the left slip split body and the right slip split body through a slip split body connecting rotating shaft, and a plurality of torsion springs are arranged on the slip split body connecting rotating shaft.
10. The continuous trip drill rig pipe handling system of claim 9 wherein: the split type bushing (911) comprises a right bushing split body, a middle bushing split body and a left bushing split body, wherein the right bushing split body and the middle bushing split body are symmetrically assembled on the inner wall of the slip seat (902), the left bushing split body is installed on the inner wall of the left side door (906) of the slip, positioning grooves (915) are formed in the middle of the outer side walls of the right bushing split body, the middle bushing split body and the left bushing split body, and bushing positioning lugs (913) matched with the positioning grooves (915) are arranged on the inner wall of the slip seat (902) and the inner wall of the left side door (906); and a slip body position detection sensor is arranged at the middle gap of the right bushing split body and the middle bushing split body.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113863875A (en) * | 2021-11-08 | 2021-12-31 | 兰州兰石石油装备工程股份有限公司 | Automatic hydraulic drill rod box system and pipe treatment method |
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| CN113863875B (en) * | 2021-11-08 | 2023-08-08 | 兰州兰石石油装备工程股份有限公司 | Automatic hydraulic drill rod box system and pipe processing method |
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| CN113585989B (en) | 2023-06-23 |
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