CN116084858A - Safety hoisting device for oilfield workover operation - Google Patents
Safety hoisting device for oilfield workover operation Download PDFInfo
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- CN116084858A CN116084858A CN202310368509.0A CN202310368509A CN116084858A CN 116084858 A CN116084858 A CN 116084858A CN 202310368509 A CN202310368509 A CN 202310368509A CN 116084858 A CN116084858 A CN 116084858A
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- fixedly connected
- rotating shaft
- elevator
- outer side
- main body
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Abstract
The invention belongs to the technical field of oilfield operation, in particular to a safe lifting device for oilfield workover operation, which comprises a separable lifting main body and a lifting handle fixed on the outer side of the lifting main body, wherein a clamping wheel groove and a rotating shaft groove are formed in the inner side of the lifting main body, one clamping wheel groove is communicated with two adjacent rotating shaft grooves, the clamping wheel groove and the rotating shaft grooves are distributed at equal intervals with the central shaft of the lifting main body, a metal rotating shaft is movably arranged in the inner side of each two adjacent rotating shaft grooves, a metal clamping wheel is fixedly connected to the outer side of each metal rotating shaft, the metal clamping wheel is arranged in the inner side of each clamping wheel groove, a second drilling rod lifting device can be installed after a plurality of drilling rods are lifted by the first drilling rod lifting device, the second drilling rod lifting device does not need to wait for being pulled out of a working table surface, the arranged drilling rod lifting device does not obstruct the pulling out of the drilling rod, and the falling of the drilling rod into a well can be prevented after a steel rope or a steel cable is broken or the situation that the drilling rod and the drilling rod on the drilling rod lifting device falls off can be realized.
Description
Technical Field
The invention belongs to the technical field of oilfield operation, and particularly relates to a safe hoisting device for oilfield workover operation.
Background
In the workover operation of the oil field, the workover operation is carried out by the butt joint of a plurality of drill rods, when the work is completed and the drill rods need to be lifted and disassembled, the drill rod elevator is required to be arranged at the lower side of the upper drill rod joint of the second drill rod pipe body from top to bottom and used for lifting the second drill rods, and meanwhile, the second drill rods can be prevented from falling off; the two conventional drill rod elevators are used alternately, in the process of lifting multiple drill rods, only the uppermost drill rod is fixedly installed through the drill rod elevator, the second drill rod elevator is installed until the second drill rod extends into the workbench, and before the second drill rod elevator is installed, if a lifting steel rope or a lifting steel cable breaks, or the upper drill rod elevator and the drill rod fall off, all the drill rods fall into a well at the moment, so that serious construction accidents are caused.
Disclosure of Invention
To solve the problems set forth in the background art. The invention provides a safe lifting device for oilfield workover operation, which has the characteristics that after a plurality of drill rods are lifted by a first drill rod elevator device, a second drill rod elevator device can be installed without waiting for the second drill rod to be pulled out of a working table.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an oil field workover safety hoisting accessory, drilling rod elevator device includes separable elevator main part and fixes elevator handle in the elevator main part outside, draw-in pulley groove and pivot groove have been seted up to the inboard of elevator main part, one draw-in pulley groove and adjacent two pivot groove intercommunication sets up, draw-in pulley groove with the pivot groove with the equidistant distribution of center pin of elevator main part, two adjacent the inboard activity in pivot groove is provided with a metal pivot, the outside fixedly connected with metal clamping wheel of metal pivot, the metal clamping wheel sets up the inboard in draw-in pulley groove.
As the safe lifting device for the oil field well repairing operation, the rotating shaft groove is preferably formed by a vertical part and an inclined outer part, and the clamping wheel groove is enough to enable the metal clamping wheel to move along with the metal rotating shaft.
As the safety hoisting device for oil field well repairing operation, the invention is preferable, the central hole of the elevator main body is sleeved outside the drill pipe body in a non-contact manner, the upper end and the lower end of the drill pipe body are respectively and fixedly connected with drill pipe joints, the diameter of each drill pipe joint is larger than that of the drill pipe body, the inner side of the elevator main body is also provided with rotating shaft limiting mechanisms for limiting the movement of the metal rotating shaft, and the number of the rotating shaft limiting mechanisms is the same as that of the metal clamping wheels.
As the safe lifting device for oil field workover operation, the rotating shaft limiting mechanism comprises a first compression spring, an arc clamping strip, a single inclined surface clamping groove and a first steel ball, wherein the bottom end of the first compression spring is fixedly connected to the inner side of one end of the elevator main body, the top end of the first compression spring is fixedly connected to the outer side of the bottom end of the arc clamping strip, the inner cambered surface of the arc clamping strip is in contact connection with the outer side of the metal rotating shaft, the single inclined surface clamping groove is formed in the inner side of one end of the arc clamping strip, the first steel ball is rotatably connected to the inner side of the vertical part of the rotating shaft groove formed in the elevator main body, and the first steel ball can be in rotary contact with the outer side of the metal rotating shaft.
As the safe lifting device for oil field workover operation, the invention is preferable, the rotating shaft limiting mechanism further comprises a control component, the control component comprises a first sealing sleeve, a first communication pipe, a second communication pipe, a first piston, a first extension spring, a communication groove, a second extension spring, a sealing plate, a small through groove, a trigger rod and a second steel ball, the first sealing sleeve is fixedly connected with the inner side of one end of the elevator main body, the inner side of the top end of the first sealing sleeve is fixedly communicated with the first communication pipe, the top end of the first communication pipe is communicated with the rotating shaft groove, the inner side of the bottom end of the first sealing sleeve is fixedly communicated with the second communication pipe, the inner side of one end of the first sealing sleeve is slidably connected with the first piston, the outer side of the top end of the first piston is fixedly connected with the first extension spring, the inner side of one end of the first piston is provided with the communication groove, the outer side of the bottom end of the first piston is fixedly connected with the second extension spring, the outer side of the bottom end of the second piston is fixedly connected with the outer side of the second piston, the outer side of the second piston is fixedly connected with the second steel ball, the outer side of the sealing plate is in contact with the outer side of the first sealing plate, the sealing plate is in contact with the outer side of the small through groove, and the top end of the sealing plate is fixedly connected with the triggering groove, and the outer side of the sealing plate is in contact with the rotating groove.
As the safe lifting device for oil field workover operation, the invention is preferable, the rotating shaft limiting mechanism further comprises a second piston, a third communicating pipe, a second compression spring and a single inclined surface clamping strip, the second piston is connected with the inner side of the elevator main body in a sliding manner, a communicating space is communicated with the upper side of a movable space of the second piston, the outer side of the top end of the third communicating pipe is communicated with the communicating space, the second compression spring is fixedly connected between the outer side of the bottom end of the second piston and the inner side of the elevator main body, and the single inclined surface clamping strip is fixedly connected with the outer side of the top end of the second piston.
As the safe lifting device for oil field workover operation, the rotating shaft limiting mechanism further comprises a second sealing sleeve, a fourth communicating pipe, a sealing limiting ring, a limiting sleeve, a third piston, a fifth communicating pipe, a transmission guide rod, a movable head, a third compression spring, a first strong magnet and a second strong magnet, wherein the second sealing sleeve is fixedly arranged on the inner side of the elevator main body, the inner side of the top end of the second sealing sleeve is fixedly communicated with the fourth communicating pipe, the outer side of the top end of the fourth communicating pipe is communicated with the rotating shaft groove, the inner side of one end of the second sealing sleeve is fixedly connected with the sealing limiting ring, the outer side of the top end of the sealing limiting ring is in contact connection with the limiting sleeve, the outer side of the top end of the limiting sleeve is fixedly connected with the third piston, the third piston is in sliding connection with the inner side of one end of the second sealing sleeve, the outer side of the transmission guide rod is fixedly connected with the inner side of the second sealing limiting ring, the outer side of the transmission guide rod is fixedly connected with the outer side of the second sealing limiting ring, and the outer side of the sealing guide rod is fixedly connected with the outer side of the sealing limiting ring, and the outer side of the sealing sleeve is fixedly connected with the outer side of the sealing end of the sealing limiting ring.
As the safe lifting device for oil field workover operation, the rotating shaft limiting mechanism further comprises a pressure limiting shell, a fourth compression spring and a sealing head, wherein the pressure limiting shell is fixedly communicated with the outer sides of the third communicating pipe and the fifth communicating pipe, the fourth compression spring is fixedly connected to the inner side of the top end of the pressure limiting shell, the sealing head is fixedly connected to the outer side of the bottom end of the fourth compression spring, the sealing head is sealed on the inner side of one end of the pressure limiting shell in a sliding mode, and the elastic force of the fourth compression spring on the inner side of the pressure limiting shell connected with the third communicating pipe is larger than the elastic force of the fourth compression spring on the inner side of the pressure limiting shell connected with the fifth communicating pipe.
As the safe lifting device for oil field workover operation, the safe lifting device for oil field workover operation is preferably provided with an opening and closing mechanism, wherein the opening and closing mechanism comprises a large main body, a small main body, a first rotating support, a second rotating support, a hinge shaft and a first bolt, the lifting main body consists of the large main body and the small main body, the outer sides of two ends of the large main body are fixedly connected with the first rotating support, the outer sides of the left end and the right end of the small main body are fixedly connected with the second rotating support, the inner sides of the first rotating support and the second rotating support on one side are rotatably connected with the hinge shaft, and the inner sides of the first rotating support and the second rotating support on the other side are slidably provided with the first bolt.
As the safety lifting device for oil field workover operation, the opening and closing mechanism further comprises a second bolt, a limiting snap ring, a spring seat, a third extension spring and a hand ring, wherein the second bolt is slidably connected to the inner side of the elevator handle, the limiting snap ring is fixedly connected to the outer side of the top end of the second bolt, the outer side of the bottom end of the limiting snap ring is in contact connection with the outer side of the top end of the elevator handle, the spring seat is fixedly connected to the outer end face of the top end of the second bolt, the third extension spring is fixedly connected between the outer side of the bottom end of the spring seat and the outer side of the top end of the elevator handle, and the hand ring is fixedly connected to the outer side of the top end of the second bolt.
Compared with the prior art, the invention has the beneficial effects that: through the drilling rod elevator device that sets up, can be after first drilling rod elevator device will many with the drilling rod is hung, can install second drilling rod elevator device, need not to wait for the second drilling rod to pull out table surface, can not hinder the pulling out of drilling rod through the drilling rod elevator device that sets up to can realize breaking or the drilling rod elevator above with the drilling rod take place after the condition that drops takes place in cable wire or steel cable take place, can prevent that the drilling rod from dropping to in the well.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of the overall closure structure of the present invention;
FIG. 2 is a schematic view of the overall opening structure of the present invention;
FIG. 3 is a top view of the unitary closure structure of the present invention;
FIG. 4 is a top view of the unitary open structure of the present invention;
FIG. 5 is a cross-sectional view of the internal structure of the elevator body of the present invention;
FIG. 6 is a cross-sectional view of the mounting location of the metal clip wheel of the present invention;
FIG. 7 is a cross-sectional view of the overall structure of the relay stop mechanism of the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7A according to the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 7B in accordance with the present invention;
FIG. 10 is a cross-sectional view of the internal structure of the first sealing sleeve of the present invention;
FIG. 11 is an enlarged schematic view of the structure of FIG. 10C in accordance with the present invention;
FIG. 12 is a cross-sectional view of the internal structure of the second sealing sleeve of the present invention;
FIG. 13 is an enlarged schematic view of the structure of FIG. 12D according to the present invention;
FIG. 14 is an enlarged schematic view of the structure of FIG. 12E according to the present invention;
fig. 15 is a schematic view showing an internal structure of the pressure limiting housing of the present invention.
In the figure:
1. a drill pipe elevator device; 11. a drill pipe body; 12. a drill pipe joint; 2. an elevator body; 3. an elevator handle; 4. a clamping wheel groove; 5. a rotating shaft groove; 51. a vertical portion; 52. an obliquely outward portion; 6. a metal rotating shaft; 7. a metal clamping wheel;
8. a rotating shaft limiting mechanism; 81. a first compression spring; 811. arc-shaped clamping strips; 812. shan Xiemian clamping grooves; 82. a first steel ball; 83. a control assembly; 831. a first sealing sleeve; 832. a first communication pipe; 833. a second communicating pipe; 834. a first piston; 8341. a first extension spring; 8342. a communication groove; 8343. a second tension spring; 8344. a sealing plate; 8345. a small through groove; 835. a trigger lever; 836. a second steel ball; 84. a second piston; 841. a third communicating pipe; 842. a second compression spring; 843. a single inclined surface clamping strip; 85. a second sealing sleeve; 851. a fourth communicating pipe; 852. sealing limit rings; 853. a limit sleeve; 854. a third piston; 855. a fifth communicating pipe; 856. a transmission guide rod; 857. a movable head; 858. a third compression spring; 859. a first strong magnet; 8591. a second strong magnet; 86. a pressure limiting housing; 861. a fourth compression spring; 862. a sealing head;
9. an opening and closing mechanism; 91. a large body; 92. a small body; 93. a first rotating bracket; 94. a second rotating bracket; 95. a hinge shaft; 96. a first latch; 97. a second latch; 971. a limiting snap ring; 972. a spring seat; 973. a third extension spring; 974. a hand pull ring;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-15:
the utility model provides an oil field workover safety hoisting accessory, drilling rod elevator device 1 includes detachable elevator main part 2 and fixes the elevator handle 3 in the elevator main part 2 outside, draw-in pulley groove 4 and pivot groove 5 have been seted up to the inboard of elevator main part 2, a draw-in pulley groove 4 and two adjacent pivot groove 5 intercommunication settings, draw-in pulley groove 4 and pivot groove 5 are equidistant with the center pin of elevator main part 2 to be distributed, the inboard activity in two adjacent pivot grooves 5 is provided with a metal pivot 6, the outside fixedly connected with metal clamping wheel 7 of metal pivot 6, metal clamping wheel 7 sets up the inboard in draw-in pulley groove 4.
Further, the method comprises the steps of;
in an alternative embodiment, the spindle slot 5 is formed by a vertical portion 51 and an inclined outer portion 52, the cam slot 4 being sufficient to allow the metal cam 7 to follow the metal spindle 6.
In an alternative embodiment, the central hole of the elevator body 2 is sleeved outside the drill pipe body 11 in a non-contact manner, the upper end and the lower end of the drill pipe body 11 are respectively and fixedly connected with drill pipe joints 12, the diameter of each drill pipe joint 12 is larger than that of each drill pipe body 11, the inner side of the elevator body 2 is also provided with rotating shaft limiting mechanisms 8 for limiting the movement of the metal rotating shaft 6, and the number of the rotating shaft limiting mechanisms 8 is the same as that of the metal clamping wheels 7.
In an alternative embodiment, the rotation shaft limiting mechanism 8 includes a first compression spring 81, an arc clamping strip 811, a single inclined surface clamping groove 812 and a first steel ball 82, the bottom end of the first compression spring 81 is fixedly connected to the inner side of one end of the elevator main body 2, the top end of the first compression spring 81 is fixedly connected to the outer side of the bottom end of the arc clamping strip 811, the inner arc surface of the arc clamping strip 811 is in contact connection with the outer side of the metal rotation shaft 6, the single inclined surface clamping groove 812 is formed in the inner side of one end of the arc clamping strip 811, the first steel ball 82 is rotatably connected to the inner side of the vertical portion 51 of the rotation shaft groove 5 formed in the elevator main body 2, and the first steel ball 82 can be in rotational contact with the outer side of the metal rotation shaft 6.
In an optional embodiment, the rotation shaft limiting mechanism 8 further includes a control assembly 83, the control assembly 83 includes a first sealing sleeve 831, a first communicating pipe 832, a second communicating pipe 833, a first piston 834, a first extension spring 8341, a communicating groove 8342, a second extension spring 8343, a sealing plate 8344, a small through groove 8345, a triggering rod 835 and a second steel ball 836, the first sealing sleeve 831 is fixedly connected at one end inner side of the elevator main body 2, a first communicating pipe 832 is fixedly connected at the top end inner side of the first sealing sleeve 831, the top end of the first communicating pipe 832 is communicated with the rotation shaft groove 5, a second communicating pipe 833 is fixedly connected at the bottom end inner side of the first sealing sleeve 831, a first piston 834 is slidably connected at one end inner side of the first sealing sleeve 831, a first extension spring 8341 is fixedly connected between the top end outer side of the first sealing sleeve 831 and the top end inner side of the first sealing sleeve 831, a communicating groove 8342 is formed at one end inner side of the first piston 834, a second extension spring 8343 is fixedly connected at the bottom end outer side of the first piston 834, the top end outer side of the second extension spring 8344 is fixedly connected at the bottom end outer side of the second extension spring 8343, the top end inner side of the second extension spring 8344 is fixedly connected with the sealing plate 8342 and can be rotatably connected with the top end inner side of the sealing plate 8344, and the top end of the sealing plate 8344 is rotatably connected with the second sealing plate 835 is fixedly connected with the top side of the sealing plate inner side of the sealing plate 835, and the top side of the sealing plate has a metal sealing plate 835 is rotatably connected with the inner side of the sealing plate has a sealing groove inner side of the top side of the sealing plate 834 is rotatably is fixedly connected with the top side of the top cover plate corresponds.
In an alternative embodiment, the shaft limiting mechanism 8 further includes a second piston 84, a third communicating tube 841, a second compression spring 842 and a single-inclined-surface clamping strip 843, the second piston 84 is slidably connected to the inner side of the elevator main body 2, a communicating space is disposed in communication with the upper side of the movable space of the second piston 84, the outer side of the top end of the third communicating tube 841 is disposed in communication with the communicating space, the second compression spring 842 is fixedly connected between the outer side of the bottom end of the second piston 84 and the inner side of the elevator main body 2, and the single-inclined-surface clamping strip 843 is fixedly connected to the outer side of the top end of the second piston 84.
In an alternative embodiment, the shaft limiting mechanism 8 further includes a second sealing sleeve 85, a fourth communicating pipe 851, a sealing limiting ring 852, a limiting sleeve 853, a third piston 854, a fifth communicating pipe 855, a transmission guide rod 856, a movable head 857, a third compression spring 858, a first strong magnet 859 and a second strong magnet 8591, the second sealing sleeve 85 is fixedly installed inside the elevator body 2, a fourth communicating pipe 851 is fixedly connected with the top end of the second sealing sleeve 85, the top end of the fourth communicating pipe 851 is communicated with the shaft groove 5, a sealing limiting ring 852 is fixedly connected with the inner side of one end of the second sealing sleeve 85, a limiting sleeve 853 is connected with the outer side of the top end of the sealing limiting ring 852 in a contact manner, a third piston 854 is fixedly connected with the outer side of the limiting sleeve 853, the top end of the third piston 854 is slidably connected with the inner side of one end of the second sealing sleeve 85, the bottom end of the third communicating pipe 855 is fixedly connected with the inner side of the second sealing sleeve 8591 at the minimum space between the third piston 854 and the sealing limiting ring 852, the bottom end of the third piston 857 is fixedly connected with the transmission guide rod 856 is fixedly connected with the outer side of the second sealing ring 857, and the outer side of the sealing guide rod is fixedly connected with the outer side of the sealing ring 857 is movably connected with the outer side of the sealing ring 857.
In an alternative embodiment, the rotation shaft limiting mechanism 8 further includes a pressure limiting housing 86, a fourth compression spring 861 and a sealing head 862, the outside of the third communication pipe 841 and the outside of the fifth communication pipe 855 are fixedly connected to the pressure limiting housing 86, the inside of the top end of the pressure limiting housing 86 is fixedly connected with the fourth compression spring 861, the outside of the bottom end of the fourth compression spring 861 is fixedly connected with the sealing head 862, the sealing head 862 is slidingly sealed inside one end of the pressure limiting housing 86, and the elastic force of the fourth compression spring 861 inside the pressure limiting housing 86 connected with the third communication pipe 841 is greater than the elastic force of the fourth compression spring 861 inside the pressure limiting housing 86 connected with the fifth communication pipe 855.
In an alternative embodiment, the drill rod elevator device 1 is further provided with an opening and closing mechanism 9, the opening and closing mechanism 9 comprises a large main body 91, a small main body 92, a first rotating support 93, a second rotating support 94, a hinge shaft 95 and a first bolt 96, the elevator main body 2 comprises two parts of the large main body 91 and the small main body 92, the outer sides of two ends of the large main body 91 are fixedly connected with the first rotating support 93, the outer sides of the left end and the right end of the small main body 92 are fixedly connected with the second rotating support 94, the inner sides of the first rotating support 93 and the second rotating support 94 on one side are rotatably connected with a hinge shaft 95, and the inner sides of the first rotating support 93 and the second rotating support 94 on the other side slide with the first bolt 96.
In an alternative embodiment, the opening and closing mechanism 9 further comprises a second latch 97, a limiting snap ring 971, a spring seat 972, a third tension spring 973 and a hand ring 974, the second latch 97 is slidably connected to the inner side of the elevator handle 3, the limiting snap ring 971 is fixedly connected to the outer side of the top end of the second latch 97, the outer side of the bottom end of the limiting snap ring 971 is in contact connection with the outer side of the top end of the elevator handle 3, the spring seat 972 is fixedly connected to the outer end face of the top end of the second latch 97, the third tension spring 973 is fixedly connected between the outer side of the bottom end of the spring seat 972 and the outer side of the top end of the elevator handle 3, and the hand ring 974 is fixedly connected to the outer side of the top end of the second latch 97.
In this embodiment: in the workover operation of the oil field, the workover operation is carried out by the butt joint of a plurality of drill rods, when the work is completed and the drill rods need to be lifted and disassembled, the drill rod elevator needs to be arranged at the lower side of the upper drill rod joint 12 of the second drill rod pipe body 11 from top to bottom to lift the second drill rods, and meanwhile, the second drill rods can be prevented from falling off; the two conventional drill rod elevators are used alternately, only the uppermost drill rod is installed and fixed through the drill rod elevator in the process of lifting multiple drill rods, the second drill rod elevator cannot be installed until the second drill rod extends into the workbench, and if a steel rope or a steel cable for hoisting is broken or the upper drill rod elevator and the drill rod fall off before the second drill rod elevator is installed, all the drill rods fall into a well at the moment, so that serious construction accidents are caused;
through the arranged drill rod elevator device 1, after the first drill rod elevator device 1 hangs a plurality of drill rods, the second drill rod elevator device 1 can be installed without waiting for the second drill rod to pull out the working table, the pull-out of the drill rods can not be blocked through the arranged drill rod elevator device 1, and the situation that the steel ropes or the steel cables are broken or the upper drill rod elevator and the drill rods fall off can be realized, so that the drill rods can be prevented from falling into a well, and the concrete working steps are as follows;
when the drill rod elevator device 1 is installed on the outer side of a drill rod, a first bolt 96 is pulled out, then the small main body 92 is rotated, the small main body 92 can rotate around a hinge shaft 95 through the cooperation of the first rotating support 93 and the second rotating support 94, after the elevator main body 2 is separated and opened, the drill rod elevator device 1 is moved to the vicinity of the outer side of the drill rod, the drill rod is located at the center position of the elevator main body 2, then the small main body 92 is rotated again to enable the small main body 92 to be rotated and closed, the first bolt 96 is inserted into the inner sides of the first rotating support 93 and the second rotating support 94 to achieve closed and fixed, the diameter of a penetrating position of the center of the elevator main body 2 is larger than the diameter of a drill rod joint 12, and the diameter of a circular ring surrounded by a plurality of metal clamp wheels 7 is equal to the diameter of a drill rod pipe body 11 on the premise that the metal clamp wheels 7 are located at the lowest side, therefore, the diameter of the circular ring surrounded by the plurality of metal clamp wheels 7 is smaller than the diameter of the drill rod joint 12, the joint 12 can be blocked by the circular ring surrounded by the metal clamp wheels 7, and the joint 12 can be prevented from falling down beyond the metal clamp wheels 7, and the joint can be prevented from falling down;
under the influence of gravity, the metal clamping wheel 7 moves to the inner side of the vertical part 51 of the rotating shaft groove 5 together with the metal rotating shaft 6, at this time, if the drill rod joint 12 moves downwards, the drill rod joint 12 directly contacts with the metal clamping wheel 7, because the metal clamping wheel 7 can only move up and down and can not move left and right at this time, the drill rod joint 12 can not move downwards beyond the metal clamping wheel 7, when the drill rod joint 12 is arranged at the lower side of the metal clamping wheel 7, and the drill rod joint 12 is in an upwards moving state, at this time, the drill rod joint 12 pushes the metal clamping wheel 7 to move upwards, the metal clamping wheel 7 drives the metal rotating shaft 6 to move upwards, the metal rotating shaft 6 moves from the original vertical part 51 to the inclined outer part 52, when the metal rotating shaft 6 is positioned at the position of the inclined outer part 52 of the rotating shaft groove 5, the metal rotating shafts 6 move in opposite directions along with the continuous upward movement of the metal rotating shafts 6, so that the metal rotating shafts 6 drive the metal clamping wheels 7 to move in opposite directions, the distance between the metal clamping wheels 7 is increased, the drill rod joint 12 can move upwards beyond the metal clamping wheels 7, and when the drill rod joint 12 passes beyond the metal clamping wheels 7, the metal clamping wheels 7 are immediately moved downwards under the influence of gravity and return to the original position, so that the drill rod can only move upwards and cannot move downwards, and the purpose that the drill rod can be prevented from falling into a well after a steel rope or a steel cable is broken or the drill rod elevator and the drill rod above are separated is realized;
in order to further improve the stability of the drill rod in preventing the drill rod from falling through the metal clamping wheel 7, the metal clamping wheel 7 needs not to move in position under the unnecessary condition, when the drill rod falls, the drill rod joint 12 is crashed on the metal clamping wheel 7, the metal clamping wheel 7 can be bounced, so that the risk that the drill rod joint 12 still falls down beyond the metal clamping wheel 7 is caused, therefore, the problem can be well solved through the arranged rotating shaft limiting mechanism 8, when the metal rotating shaft 6 is arranged at the bottom of the vertical part 51 of the rotating shaft groove 5, the arc-shaped clamping strip 811 can enter the inner side of the rotating shaft groove 5 and contact with the metal rotating shaft 6 under the influence of the elastic force of the first compression spring 81, the metal rotating shaft 6 can be limited through the arranged arc-shaped clamping strip 811, the upward movement of the metal rotating shaft 6 is prevented, the further improvement of the stability of the drill rod in preventing the drill rod from falling is realized, when the drill rod falls under the unnecessary condition, the metal clamping wheel 7 is not to move in position, and the metal clamping wheel 7 is not caused to bounce when the drill rod falls;
when the drill rod moves from bottom to top, the drill rod pipe 11 drives the metal clamping wheel 7 to rotate, taking the metal clamping wheel 7 at the left side as an example, the metal clamping wheel 7 at the moment can rotate anticlockwise, the metal clamping wheel 7 can drive the metal rotating shaft 6 to rotate, the metal rotating shaft 6 can stably rotate at the bottom of the vertical part 51 of the rotating shaft groove 5 through the first steel ball 82, the outer side of the metal rotating shaft 6 is contacted with the inner cambered surface of the arc clamping strip 811, the metal rotating shaft 6 rotates to drive the arc clamping strip 811 to move, the arc clamping strip 811 downwards overcomes the elasticity of the first compression spring 81, the metal rotating shaft 6 drives the arc clamping strip 811 to move to the position which is about to be separated and not contacted, the arc clamping strip 811 still limits the metal rotating shaft 6 at the moment, and the metal rotating shaft 6 still cannot break through the limit of the arc clamping strip 811 at the moment, however, after the arc-shaped clamping bar 811 moves, the second strong magnet 8591 is driven to move to a position close to the first strong magnet 859, at this time, the magnetic force of the first strong magnet 859 affects the second strong magnet 8591, so that the second strong magnet 8591 is driven to move towards the first strong magnet 859 by the influence of the magnetic force, the arc-shaped clamping bar 811 overcomes the elastic force of the first compression spring 81, so that the arc-shaped clamping bar 811 moves for a small distance again, the distance of the arc-shaped clamping bar 811 affected by the magnetic force is completely separated from the metal rotating shaft 6, when the drill rod joint 12 moves to contact with the metal clamping wheel 7, the metal rotating shaft 6 is driven to move upwards, the metal rotating shaft 6 moves upwards to push the inclined surface part of the arc-shaped clamping bar 811, so that the arc-shaped clamping bar 811 can be pushed to move further towards the inner side of the elevator main body 2, when the metal rotating shaft 6 presses the arc-shaped clamping bar 811 into the maximum stroke position, the arc clamping bar 811 can not limit the movement of the metal rotating shaft 6, the single inclined surface clamping groove 812 of the arc clamping bar 811 just corresponds to the position of the single inclined surface clamping bar 843, the elastic force of the second compression spring 842 can drive the second piston 84 to move, the second piston 84 can drive the single inclined surface clamping bar 843 to move and be in clamping connection with the single inclined surface clamping groove 812, so that the arc clamping bar 811 is prevented from being ejected to the inner side of the rotating shaft groove 5, the arc clamping bar 811 is temporarily fixed to the inner side of the elevator main body 2, the limitation of the arc clamping bar 811 is avoided, the metal clamping wheel 7 can move upwards, and the drill rod joint 12 can move upwards beyond the metal clamping wheel 7;
in the process, the metal clamping wheel 7 moves upwards together with the metal rotating shaft 6, the metal rotating shaft 6 is separated from the vertical part 51 of the rotating shaft groove 5, the first extension spring 8341 pulls the first piston 834 to move upwards, the upward movement of the first piston 834 discharges the air at the upper part of the first piston 834 into the space at the lower part of the first piston 834 through the communication groove 8342, the air enters the communication groove 8342 to push the sealing plate 8344 to move downwards against the elastic force of the second extension spring 8343 because the air flows from top to bottom, the opening at the bottom of the communication groove 8342 is not blocked after the downward movement of the sealing plate 8344, so that the air can circulate, the air can enter the lower part of the first piston 834 for temporary storage, the metal clamping wheel 7 falls off again under the influence of gravity after the drill pipe joint 12 completely passes through the metal clamping wheel 7, the metal clamping wheel 7 falls to the bottom of the vertical portion 51 of the rotating shaft groove 5 together with the metal rotating shaft 6, at this time, the metal rotating shaft 6 rapidly presses down the second steel ball 836, the second steel ball 836 drives the trigger lever 835 to rapidly press down, the trigger lever 835 drives the first piston 834 to move downward against the elastic force of the first extension spring 8341, because the air at the lower side of the first piston 834 cannot push the sealing plate 8344 to separate from the outer side of the first piston 834, when the first piston 834 moves downward, the air at the lower side of the first piston 834 can only be compressed into the inner side of the second communicating pipe 833, the air at the inner side of the second communicating pipe 833 rapidly enters the inner sides of the third communicating pipe 841 and the fifth communicating pipe 855, and because the fourth compression spring 861 at the inner side of the pressure limiting housing 86 installed at the outer side of the fifth communicating pipe 855 has weak elastic force, therefore, when the gas enters the inner side of the fifth communication pipe 855, the sealing head 862 is pushed to move against the elastic force of the fourth compression spring 861, so that the pressure limiting shell 86 opens a passage, the fifth communication pipe 855 is communicated, the gas at the inner side of the fifth communication pipe 855 enters the inner side of the second sealing sleeve 85 and is influenced by the pressure of the gas, the second sealing sleeve 85 pushes the third piston 854 to move, the third piston 854 moves to drive the transmission guide rod 856 to drive the movable head 857 to move against the elastic force of the third compression spring 858, the movable head 857 moves to drive the first strong magnet 859 to move, the first strong magnet 859 is far away from the second strong magnet 8591, thereby avoiding the influence of the first strong magnet 859 on the movement of the second strong magnet 8591 through magnetic force, when the third piston 854 moves to the maximum stroke, the gas pressure at the inner side of the second communication pipe 833 is raised again, the second communicating tube 833, the gas pressure at this time is enough to push open the sealing head 862 installed inside the upper pressure limiting housing 86 of the third communicating tube 841, so that the sealing head 862 moves against the elastic force of the fourth compression spring 861, thereby realizing the communication of the third communicating tube 841, the gas inside the third communicating tube 841 enters the movable space inside of the second piston 84, so that the second piston 84 moves against the elastic force of the second compression spring 842 under the influence of the gas pressure, the second piston 84 drives the single inclined surface clamping bar 843 to move together, the single inclined surface clamping bar 843 separates from the single inclined surface clamping groove 812 after moving, the arc clamping bar 811 can move without the clamping restriction of the single inclined surface clamping bar 843, and because the first strong magnet 859 is far away from the second strong magnet 8591 at this time, the second strong magnet 8591 can move together along with the arc clamping bar 811 without the influence of magnetic force, the arc-shaped clamping strip 811 is influenced by the elastic force of the first compression spring 81 to quickly penetrate into the inner side of the rotating shaft groove 5, so that the arc-shaped clamping strip 811 limits the rotating shaft groove 5 again;
after the arc-shaped clamping strip 811 limits the rotating shaft groove 5 again, the air in the inner side of the second communicating pipe 833 can enter the space under the first piston 834 in the inner side of the first sealing sleeve 831 again due to the influence of the elastic force of the third compression spring 858 and the second compression spring 842, and the air at the moment can slowly enter the upper side of the first piston 834 through the small through groove 8345 and then be discharged into the inner side of the rotating shaft groove 5 through the first communicating pipe 832, so that the impact force generated by downward falling of the metal rotating shaft 6 and the metal clamping wheel 7 together is far greater than the sum of the elastic force of the first tension spring 8341, the third compression spring 858, the second compression spring 858 and the fourth compression spring 842 and the fourth compression spring 861 corresponding to the elastic force of the fourth compression spring 861 is realized;
through upwards pulling up the pull ring, thereby the pull ring can drive second bolt 97 and drive spacing snap ring 971 and spring holder 972 upward movement, thereby spring holder 972 can overcome the elasticity of third extension spring 973 and upwards move, when making the circular hanging hole of elevator handle 3 not be in confined state after second bolt 97 upwards moves, can embolia the steel cable in the hanging hole of elevator handle 3, then loosen the hand, thereby under the elasticity effect of third extension spring 973, third extension spring 973 can drive spring holder 972 and drive second bolt 97 downwardly movement and return to the normal position.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an oil field workover operation safety hoisting accessory which characterized in that: the drill rod elevator device (1) comprises a detachable elevator main body (2) and an elevator handle (3) fixed on the outer side of the elevator main body (2), wherein an elevator wheel groove (4) and a rotating shaft groove (5) are formed in the inner side of the elevator main body (2), one elevator wheel groove (4) and two adjacent elevator wheel grooves (5) are communicated, the elevator wheel groove (4) and the rotating shaft groove (5) are distributed at equal intervals along the central axis of the elevator main body (2), a metal rotating shaft (6) is movably arranged on the inner side of each adjacent elevator wheel groove (5), and a metal elevator wheel (7) is fixedly connected to the outer side of each metal rotating shaft (6), and the metal elevator wheel (7) is arranged on the inner side of each elevator wheel groove (4).
2. The oilfield workover safety hoisting device of claim 1, wherein: the rotating shaft groove (5) is composed of a vertical part (51) and an inclined outer part (52), and the clamping wheel groove (4) is enough for enabling the metal clamping wheel (7) to move along with the metal rotating shaft (6).
3. The oilfield workover safety hoisting device of claim 2, wherein: the center hole position of elevator main part (2) contactless cover is established in the outside of drilling rod body (11), the upper and lower both ends of drilling rod body (11) are fixedly connected with drilling rod joint (12) respectively, the diameter of drilling rod joint (12) is greater than the diameter of drilling rod body (11), pivot stop gear (8) that restriction metal pivot (6) removed are still installed to the inboard of elevator main part (2), the quantity of pivot stop gear (8) with the quantity of metal card wheel (7) is the same.
4. The oilfield workover safety hoisting device of claim 3, wherein: the rotating shaft limiting mechanism (8) comprises a first compression spring (81), an arc clamping strip (811), a single inclined surface clamping groove (812) and a first steel ball (82), wherein the bottom end of the first compression spring (81) is fixedly connected with the inner side of one end of the elevator main body (2), the top end of the first compression spring (81) is fixedly connected with the outer side of the bottom end of the arc clamping strip (811), the inner cambered surface of the arc clamping strip (811) is in contact connection with the outer side of the metal rotating shaft (6), the single inclined surface clamping groove (812) is formed in the inner side of one end of the arc clamping strip (811), the first steel ball (82) is connected with the inner side of the vertical part (51) of the rotating shaft groove (5) in a rotating mode, and the first steel ball (82) can be in rotating contact with the outer side of the metal rotating shaft (6).
5. The oilfield workover safety hoisting device of claim 4, wherein: the rotating shaft limiting mechanism (8) further comprises a control component (83), the control component (83) comprises a first sealing sleeve (831), a first communication pipe (832), a second communication pipe (833), a first piston (834), a first extension spring (8341), a communication groove (8342), a second extension spring (8343), a sealing plate (8344), a small communication groove (8345), a trigger rod (835) and a second steel ball (836), the first sealing sleeve (831) is fixedly connected with the inner side of one end of the elevator main body (2), the inner side of the top end of the first sealing sleeve (831) is fixedly connected with the first communication pipe (832), the top end of the first communication pipe (832) is communicated with the rotating shaft groove (5), the inner side of the bottom end of the first sealing sleeve (831) is fixedly connected with the second communication pipe (833), the inner side of one end of the first sealing sleeve (831) is slidably connected with the first piston (834), the outer side of the first piston (834) is fixedly connected with the first extension spring (834), the inner side of the first end (834) is fixedly connected with the first piston (43), the bottom outside fixedly connected with of second extension spring (8343) closing plate (8344), the top outside of closing plate (8344) can be plugged up the bottom opening of intercommunication groove (8342), the one end inboard of closing plate (8344) seted up can with little logical groove (8345) of intercommunication groove (8342) intercommunication, the top outside fixedly connected with of first piston (834) trigger lever (835), the inboard embedding in top of trigger lever (835) rotates has second steel ball (836), the top outside of second steel ball (836) can with the outside rotation contact of metal pivot (6).
6. The oilfield workover safety hoisting device of claim 5, wherein: the rotating shaft limiting mechanism (8) further comprises a second piston (84), a third communicating pipe (841), a second compression spring (842) and a single inclined surface clamping strip (843), the second piston (84) is slidably connected to the inner side of the elevator main body (2), a communicating space is formed in the upper side of a movable space of the second piston (84) in a communicating mode, the outer side of the top end of the third communicating pipe (841) is communicated with the communicating space, the outer side of the bottom end of the second piston (84) is fixedly connected with the second compression spring (842) between the outer side of the bottom end of the elevator main body (2), and the outer side of the top end of the second piston (84) is fixedly connected with the single inclined surface clamping strip (843).
7. The oilfield workover safety hoisting device of claim 6, wherein: the rotating shaft limiting mechanism (8) further comprises a second sealing sleeve (85), a fourth communicating pipe (851), a sealing limiting ring (852), a limiting sleeve (853), a third piston (854), a fifth communicating pipe (855), a transmission guide rod (856), a movable head (857), a third compression spring (858), a first strong magnet (859) and a second strong magnet (8591), the second sealing sleeve (85) is fixedly arranged at the inner side of the hanging card main body (2), the inner side of the top end of the second sealing sleeve (85) is fixedly communicated with the fourth communicating pipe (851), the outer side of the top end of the fourth communicating pipe (851) is communicated with the rotating shaft groove (5), the inner side of one end of the second sealing sleeve (85) is fixedly connected with the sealing limiting ring (852), the outer side of the top end of the sealing limiting sleeve (852) is connected with the limiting sleeve (853), the inner side of the top end of the limiting sleeve (853) is fixedly connected with the third piston (854), the inner side of the top end of the third piston (854) is fixedly connected with the inner side of the top end of the third sealing sleeve (855) between the second sealing sleeve (85) and the third sealing sleeve (855), the outer side of the bottom end of the third piston (854) is fixedly connected with the transmission guide rod (856), the outer end face of the transmission guide rod (856) is in sliding seal with the inner wall face of the sealing limiting ring (852), the outer side of the bottom end of the transmission guide rod (856) is fixedly connected with the movable head (857), the outer side of the top end of the movable head (857) is fixedly connected with the third compression spring (858) between the outer side of the bottom end of the sealing limiting ring (852), the outer side of the bottom end of the movable head (857) is fixedly connected with the first strong magnet (859), and the outer side of the arc-shaped clamping strip (811) is fixedly connected with the second strong magnet (8591).
8. The oilfield workover safety hoisting device of claim 7, wherein: the rotating shaft limiting mechanism (8) further comprises a limited pressure shell (86), a fourth compression spring (861) and a sealing head (862), wherein the outer sides of the third communication pipe (841) and the fifth communication pipe (855) are fixedly communicated with the limited pressure shell (86), the inner side of the top end of the limited pressure shell (86) is fixedly connected with the fourth compression spring (861), the outer side of the bottom end of the fourth compression spring (861) is fixedly connected with the sealing head (862), the sealing head (862) is in sliding sealing with the inner side of one end of the limited pressure shell (86), and the elastic force of the fourth compression spring (861) on the inner side of the limited pressure shell (86) connected with the third communication pipe (841) is larger than the elastic force of the fourth compression spring (861) on the inner side of the limited pressure shell (86) connected with the fifth communication pipe (855).
9. The oilfield workover safety hoisting device of claim 1, wherein: the drill rod elevator device (1) is further provided with an opening and closing mechanism (9), the opening and closing mechanism (9) comprises a large main body (91), a small main body (92), a first rotating support (93), a second rotating support (94), a hinge shaft (95) and a first bolt (96), the elevator main body (2) is composed of the large main body (91) and the small main body (92), the outer sides of the two ends of the large main body (91) are fixedly connected with the first rotating support (93), the outer sides of the left end and the right end of the small main body (92) are fixedly connected with the second rotating support (94), one side of the first rotating support (93) and the inner side of the second rotating support (94) are rotatably connected with the hinge shaft (95), and the inner sides of the first rotating support (93) and the second rotating support (94) are slidably provided with the first bolt (96).
10. The oilfield workover safety hoisting device of claim 9, wherein: the mechanism that opens and shuts (9) still including second bolt (97), spacing snap ring (971), spring holder (972), third extension spring (973) and hand ring (974), second bolt (97) sliding connection is in the inboard of elevator handle (3), the top outside fixedly connected with of second bolt (97) spacing snap ring (971), the bottom outside of spacing snap ring (971) with the top outside contact connection of elevator handle (3), the top outer end face fixedly connected with of second bolt (97) spring holder (972), fixedly connected with between the bottom outside of spring holder (972) and the top outside of elevator handle (3) third extension spring (973), the top outside fixedly connected with of second bolt (97) hand ring (974).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310368509.0A CN116084858B (en) | 2023-04-10 | 2023-04-10 | Safety hoisting device for oilfield workover operation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310368509.0A CN116084858B (en) | 2023-04-10 | 2023-04-10 | Safety hoisting device for oilfield workover operation |
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| CN116084858A true CN116084858A (en) | 2023-05-09 |
| CN116084858B CN116084858B (en) | 2023-06-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569751A (en) * | 2024-01-19 | 2024-02-20 | 大庆辰平钻井技术服务有限公司 | Wellhead butt joint device and ultra-short radius side drilling horizontal well drilling completion method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577390U (en) * | 1992-03-26 | 1993-10-22 | 三和機材株式会社 | Connecting device for suspending work rod |
| CN204941383U (en) * | 2015-09-01 | 2016-01-06 | 扬州华能石化机械有限公司 | Hydraulic pressure automatic turning elevator |
| WO2016008670A1 (en) * | 2014-07-18 | 2016-01-21 | Mhwirth Gmbh | Device for holding a pipe segment |
| CN205225105U (en) * | 2015-11-03 | 2016-05-11 | 江苏佰恰利机械有限公司 | Casing elevator |
| CN208416521U (en) * | 2018-07-04 | 2019-01-22 | 中国石油集团西部钻探工程有限公司 | Multiple shot tool outer cylinder elevator |
| CN211008505U (en) * | 2019-11-11 | 2020-07-14 | 蔡鹏� | Casing safety elevator for oil field drilling operation |
| US20220042379A1 (en) * | 2013-12-21 | 2022-02-10 | Michael Hernandez | External Trap Apparatus and Method for Safely Controlling Tool String Assemblies |
| CN114934753A (en) * | 2022-06-28 | 2022-08-23 | 江苏诚创智能装备有限公司 | Sleeve type flap elevator |
| CN217602600U (en) * | 2022-06-13 | 2022-10-18 | 广东英格尔地质装备科技股份有限公司 | Ball clamping type drill rod falling protector |
-
2023
- 2023-04-10 CN CN202310368509.0A patent/CN116084858B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0577390U (en) * | 1992-03-26 | 1993-10-22 | 三和機材株式会社 | Connecting device for suspending work rod |
| US20220042379A1 (en) * | 2013-12-21 | 2022-02-10 | Michael Hernandez | External Trap Apparatus and Method for Safely Controlling Tool String Assemblies |
| WO2016008670A1 (en) * | 2014-07-18 | 2016-01-21 | Mhwirth Gmbh | Device for holding a pipe segment |
| CN204941383U (en) * | 2015-09-01 | 2016-01-06 | 扬州华能石化机械有限公司 | Hydraulic pressure automatic turning elevator |
| CN205225105U (en) * | 2015-11-03 | 2016-05-11 | 江苏佰恰利机械有限公司 | Casing elevator |
| CN208416521U (en) * | 2018-07-04 | 2019-01-22 | 中国石油集团西部钻探工程有限公司 | Multiple shot tool outer cylinder elevator |
| CN211008505U (en) * | 2019-11-11 | 2020-07-14 | 蔡鹏� | Casing safety elevator for oil field drilling operation |
| CN217602600U (en) * | 2022-06-13 | 2022-10-18 | 广东英格尔地质装备科技股份有限公司 | Ball clamping type drill rod falling protector |
| CN114934753A (en) * | 2022-06-28 | 2022-08-23 | 江苏诚创智能装备有限公司 | Sleeve type flap elevator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117569751A (en) * | 2024-01-19 | 2024-02-20 | 大庆辰平钻井技术服务有限公司 | Wellhead butt joint device and ultra-short radius side drilling horizontal well drilling completion method |
| CN117569751B (en) * | 2024-01-19 | 2024-04-05 | 大庆辰平钻井技术服务有限公司 | Wellhead butt joint device and ultra-short radius side drilling horizontal well drilling completion method |
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| CN116084858B (en) | 2023-06-23 |
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