Rapid hoisting tool for wellhead equipment of drilling platform

Abstract

The invention provides a drilling platform wellhead equipment rapid hoisting tool, and belongs to the technical field of hoisting tools, the drilling platform wellhead equipment rapid hoisting tool comprises a hoisting plate, a clamping assembly, a first driving assembly, a guide assembly, a second driving assembly, a limiting assembly, a hoisting rope and a third driving assembly, the first driving assembly is installed on the upper portion of the hoisting plate and used for driving the clamping assembly to move so as to clamp wellhead equipment, one end of the hoisting rope is connected with the hoisting plate, the other end of the hoisting rope is connected with an external crane, and the guiding assembly is movably arranged on the side of the hoisting plate. Compared with the prior art, when wellhead equipment is hoisted to the bottom of the inner side of a well body for construction operation, the phenomenon that the hoisting rope is broken and damaged due to long-time load bearing can be effectively avoided, and the protection performance and safety of the hoisting rope are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of hoisting tools, in particular to a quick hoisting tool for wellhead equipment on a drilling platform. Background Art

[0002] At present, when a drilling platform is under construction inside a well, it is necessary to use lifting tools to lift the wellhead equipment into the well body. During the construction of the wellhead equipment inside the well body, the lifting tools need to be withdrawn from the well body to avoid affecting the construction of the wellhead equipment.

[0003] In the prior art, when a lifting tool is used to lift wellhead equipment, it is necessary to clamp the wellhead equipment in advance through the clamping mechanism included in the lifting tool, and then the crane included in the lifting tool controls the unwinding of the rope, and then the clamping mechanism and the wellhead equipment it holds are placed together into the well body. When the wellhead equipment reaches the bottom of the inner side of the well body, the clamping mechanism releases the clamping state of the wellhead equipment, and then the crane rewinds the rope, and the rope brings the clamping mechanism to the wellhead, so as to enter the bottom of the well body again in time after the construction of the wellhead equipment is completed, and then clamp the wellhead equipment again to lift the wellhead equipment out of the well body. However, the construction of the wellhead equipment in the well body takes a long time, and the clamping mechanism is prone to hovering at the wellhead for a long time, which causes the rope to bear too much weight for a long time, making the rope prone to breakage and damage. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a tool for quickly hoisting wellhead equipment on a drilling platform.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A drilling platform wellhead equipment rapid lifting tool, comprising a lifting plate, a clamping assembly, a first drive assembly, a guide assembly, a second drive assembly, a limit assembly, a lifting rope and a third drive assembly.

[0007] The clamping assembly is movably arranged below the hoisting plate, and the first driving assembly is installed on the upper part of the hoisting plate to drive the clamping assembly to move so as to clamp the wellhead equipment.

[0008] One end of the hoisting rope is connected to the hoisting plate, and the other end is connected to an external crane.

[0009] The guide assembly is movably arranged on the side of the hoisting plate, and the third drive assembly is installed at the bottom of the hoisting plate to drive the guide assembly to move so as to guide the hoisting of the wellhead equipment along the inside of the well body.

[0010] The limiting assembly is arranged on the upper part of the hanging plate, and is used to limit the hanging plate at the wellhead of the well body. The second driving assembly is installed on the upper part of the hanging plate. When the third driving assembly drives the guide assembly to move, the second driving assembly drives the limiting assembly to move to release the limiting state of the hanging plate.

[0011] As a further improvement of the present invention: a slide groove is provided on the hoisting plate, and two groups of first bracket plates are fixedly provided on the upper portion of the hoisting plate, and the two groups of first bracket plates are relatively distributed.

[0012] The clamping assembly includes two sets of clamping plates,

[0013] The two groups of clamping plates are relatively distributed below the hanging plate. A sliding rod is fixedly provided on the upper part of the two groups of clamping plates. The upper end of the sliding rod extends from the slide groove to the upper part of the hanging plate.

[0014] The first driving assembly includes a driving shaft and a driving motor,

[0015] The drive shaft is rotatably installed between the two groups of the first bracket plates. Two groups of threaded segments are provided on the outside of the drive shaft. The two groups of threaded segments rotate in opposite directions. The upper ends of the two groups of sliding rods are sleeved on the outside of the drive shaft and respectively threadedly cooperate with the two groups of threaded segments. The drive motor is fixedly installed on the upper part of the lifting plate to drive the drive shaft to rotate.

[0016] As a further improvement of the present invention: an anti-slip layer is provided on opposite sides of the two groups of clamping plates.

[0017] As a further improvement of the present invention: a lifting column is vertically provided at the center of the hoisting plate, the lifting column is movably matched with the hoisting plate, and the end of the hoisting rope away from the crane is connected to the lifting column.

[0018] The third driving assembly includes a diagonal support rod, a push rod and a second guide sleeve.

[0019] The second guide sleeve is fixedly arranged at the bottom of the hanging plate and distributed radially along the hanging plate. One end of the push rod extends to the outside of the hanging plate and is connected to the guide assembly, and the other end passes through the second guide sleeve and is hingedly connected to the lifting column through the diagonal support rod. The push rod and the second guide sleeve are movably matched.

[0020] As a further improvement of the present invention: the guide assembly includes a first support plate, a guide wheel, a support and a first rotating shaft,

[0021] The first support plate is arranged on the outside of the lifting plate and is fixedly connected to the push rod. The guide wheels are provided in several groups on the side of the first support plate away from the push rod. A group of the first rotating shafts are fixedly provided on the opposite sides of each group of guide wheels. The support is rotatably provided on the outside of each group of the first rotating shafts, and the support is fixedly installed on the side wall of the first support plate.

[0022] As a further improvement of the present invention: the limiting assembly includes a limiting rod, a support rod and a first guide sleeve,

[0023] The support rod is fixedly arranged on the upper part of the lifting plate, the first guide sleeve is fixedly arranged on the upper part of the support rod and is horizontally distributed, one end of the limit rod extends to the inside of the first guide sleeve and is telescopically matched with the first guide sleeve, and the other end extends to the outside of the first guide sleeve.

[0024] As a further improvement of the present invention: the second driving assembly includes a first rack, a transmission gear, a second rotating shaft, a second bracket plate, a second support plate and a second rack,

[0025] The second bracket plate is fixedly arranged on the upper part of the hanging plate, and the side wall of the transmission gear is rotatably connected to the second bracket plate through the second rotating shaft. One end of the second support plate is connected to the upper end of the first support plate, and the other end extends to the bottom of the transmission gear. The limiting rod is arranged above the transmission gear, and the first rack is fixedly arranged at the bottom of the limiting rod and meshes with the transmission gear. The second rack is fixedly arranged on the upper part of the second support plate and meshes with the transmission gear.

[0026] As a further improvement of the present invention: a lifting rod is fixedly provided at the bottom of one end of the second support plate, a socket is provided at the upper end of the first support plate, the lower end of the lifting rod extends into the socket and is telescopically matched with the socket, and the second support plate is further connected to the first support plate by a second elastic member, and the second elastic member is used to provide elastic support for the second support plate.

[0027] An annular stopper is fixedly provided on the outside of the limiting rod. The annular stopper is connected to the first guide sleeve via a third elastic member. The third elastic member is used to provide elastic support for the limiting rod.

[0028] As a further improvement of the present invention: a limit plate is fixedly provided on the side wall of the lifting column, and the limit plate is further connected to the hanging plate via a first elastic member, and the first elastic member is used to provide elastic tension to the lifting column.

[0029] As a further improvement of the present invention: the first elastic member, the second elastic member and the third elastic member are springs or metal springs.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] When the lifting device reaches the bottom of the wellhead body, the first driving assembly drives the clamping assembly to move in the opposite direction to release the clamping state of the wellhead equipment, thereby placing the wellhead equipment at the bottom of the wellhead body, and then the crane reels in the lifting rope. When the hoisting plate moves downward along the inside of the well body, the guide assembly guides the movement of the hoisting plate, thereby preventing the wellhead equipment clamped under the hoisting plate from colliding with the inner wall of the well body, thereby avoiding damage to the inner wall of the well body and the wellhead equipment, improving the safety of the wellhead equipment during lifting. Compared with the existing technology, when the wellhead equipment is hoisted to the bottom of the inner side of the well body for construction work, it can effectively avoid the phenomenon of breaking and damaging the hoisting rope due to long-term load-bearing, thereby improving the protection and safety of the hoisting rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of a drilling platform wellhead equipment rapid lifting tool Figure 1 ;

[0033] Figure 2 This is a schematic diagram of the structure of a drilling platform wellhead equipment rapid lifting tool Figure 2 ;

[0034] Figure 3This is a structural diagram of a drilling platform wellhead equipment rapid lifting tool in working condition;

[0035] Figure 4 for Figure 1 A magnified schematic diagram of area A in the middle;

[0036] Figure 5 for Figure 1 A magnified schematic diagram of area B in the middle;

[0037] Figure 6 for Figure 1 Enlarged schematic diagram of area C in the middle;

[0038] Figure 7 for Figure 3 Enlarged schematic diagram of area D in the middle;

[0039] In the figure: 10-hoisting plate, 101-slide, 102-first bracket plate, 103-limiting plate, 104-lifting column, 105-first elastic member, 20-clamping assembly, 201-clamping plate, 202-slide rod, 30-first driving assembly, 301-driving shaft, 302-threaded segment, 40-guide assembly, 401-first supporting plate, 402-guide wheel, 403-support, 404-first rotating shaft, 50-second driving assembly, 501-first rack, 50 2-transmission gear, 503-second rotating shaft, 504-second bracket plate, 505-second support plate, 506-second rack, 507-lifting rod, 508-second elastic member, 60-limiting assembly, 601-limiting rod, 602-support rod, 603-first guide sleeve, 604-second elastic member, 605-annular block, 70-hoisting rope, 80-third driving assembly, 801-diagonal support rod, 802-push rod, 803-second guide sleeve, 90-well body. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0041] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0042] In the description of the present application, it is to be understood by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0043] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] Please refer to Figure 1 , Figure 2 and Figure 3 , the embodiment provides a kind of drilling platform wellhead equipment quick hoisting tool, including hoisting plate 10, clamping assembly 20, first drive assembly 30, guide assembly 40, second drive assembly 50, limiting assembly 60, hoisting rope 70 and third drive assembly 80, the clamping assembly 20 is movably arranged below the hoisting plate 10, the first drive assembly 30 is installed on the upper portion of the hoisting plate 10, for moving the clamping assembly 20 moves, to clamp wellhead equipment, one end of the hoisting rope 70 is connected with the hoisting plate 10, the other end is connected with external crane (not shown in figure), the guide assembly 40 is movably arranged in the side of the hoisting plate 10, the third drive assembly 80 is installed in the bottom of the hoisting plate 10, for moving the guide assembly 40 moves, to guide the hoisting of wellhead equipment along the inside of well body 90, the limiting assembly 60 is arranged on the upper portion of the hoisting plate 10, for limiting the hoisting plate 10 at the wellhead of well body 90, the second drive assembly 50 is installed on the upper portion of the hoisting plate 10, when the third drive assembly 80 moves the guide assembly 40, the second drive assembly 50 moves the limiting assembly 60, to remove the limiting state of the hoisting plate 10.

[0045] Initially, the hoisting plate 10 is limited at the wellhead of the well body 90 by the limiting assembly 60. When the wellhead equipment needs to be hoisted, the hoisting rope 70 can be reeled in by a crane, thereby driving the hoisting plate 10 to move upward. When the hoisting plate 10 moves upward, the second drive assembly 50 drives the guide assembly 40 to move away from the hoisting plate 10. At the same time, the third drive assembly 80 drives the limiting assembly 60 to move to release the limiting state of the hoisting plate 10. When the hoisting plate 10 moves upward, it drives the first drive assembly 30 and the clamping assembly 20 to move upward as a whole. When the clamping assembly 20 After the assembly 20 is removed from the well body 90, the staff places the wellhead equipment under the hoisting plate 10, and then the first drive assembly 30 drives the clamping assembly 20 to move to clamp the wellhead equipment. Then the crane unwinds the hoisting rope 70, and the hoisting rope 70 drives the hoisting plate 10, the guide assembly 40 and the wellhead equipment clamped by the clamping assembly 20 to move downward along the inside of the well body 90. When the wellhead equipment reaches the bottom inside the well body 90, the first drive assembly 30 drives the clamping assembly 20 to move in the opposite direction to release the wellhead equipment. The hoisting plate 10 is clamped in the clamping state, and the wellhead equipment is placed on the inner bottom of the well body 90. The crane then reels in the hoisting rope 70, and the hoisting rope 70 drives the hoisting plate 10, the clamping assembly 20 and the guide assembly 40 to move upward along the inside of the well body 90. When the hoisting plate 10 moves up to the wellhead position of the well body 90, the third driving assembly 80 drives the limiting assembly 60 to move along the radial direction of the hoisting plate 10, and the limiting assembly 60 acts on the wellhead of the well body 90, thereby limiting the hoisting plate 10, the clamping assembly 20 and the guide assembly 40. When the hoisting plate 10 moves downward along the inside of the well body 90, the guide assembly 40 guides the movement of the hoisting plate 10, thereby preventing the wellhead equipment clamped under the hoisting plate 10 from colliding with the inner wall of the well body 90, thereby avoiding damage to the inner wall of the well body 90 and the wellhead equipment, and improving the safety of the wellhead equipment during the hoisting process.

[0046] See also Figure 1 as well as Figure 2In one embodiment, a slide groove 101 is provided on the hanging plate 10, and two groups of first bracket plates 102 are fixedly provided on the upper part of the hanging plate 10. The two groups of first bracket plates 102 are relatively distributed. The clamping assembly 20 includes two groups of clamping plates 201. The two groups of clamping plates 201 are relatively distributed below the hanging plate 10. A sliding rod 202 is fixed on the upper part of the two groups of clamping plates 201. The upper end of the sliding rod 202 extends from the slide groove 101 to the upper part of the hanging plate 10. The first drive assembly 30 includes a drive shaft 301 and a drive motor. The drive shaft 301 is rotatably installed between the two groups of the first bracket plates 102. Two groups of threaded segments 302 are provided on the outside of the drive shaft 301. The two groups of threaded segments 302 rotate in opposite directions. The upper ends of the two groups of sliding rods 202 are sleeved on the outside of the drive shaft 301 and are respectively threadedly engaged with the two groups of threaded segments 302. The drive motor is fixedly installed on the upper part of the lifting plate 10 to drive the drive shaft 301 to rotate.

[0047] When the hoisting rope 70 drives the hoisting plate 10 to move upward so that the two sets of clamping plates 201 move to the top of the wellhead, the staff places the wellhead equipment between the two sets of clamping plates 201, and then drives the drive shaft 301 to rotate through the drive motor. When the drive shaft 301 rotates, the two sets of threaded segments 302 and the two sets of slide rods 202 cooperate with each other to drive the two sets of slide rods 202 to move toward each other along the length direction of the drive shaft 301, thereby driving the two sets of clamping plates 201 to move toward each other to clamp the wellhead equipment. After the wellhead equipment is clamped, the crane unwinds the lifting rope 70, and the lifting plate 10 and the wellhead equipment clamped by the two sets of clamping plates 201 move downward along the inside of the well body 90. When the wellhead equipment acts on the inner bottom of the well body 90, the drive motor drives the drive shaft 301 to rotate in the opposite direction, and utilizes the reverse thread cooperation of the two sets of threaded segments 302 and the two sets of sliding rods 202 to drive the two sets of sliding rods 202 away from each other, thereby driving the two sets of clamping plates 201 away from each other, thereby loosening the clamped wellhead equipment.

[0048] See also Figure 1 as well as Figure 2In one embodiment, a lifting column 104 is vertically penetrated at the center of the lifting plate 10, and the lifting column 104 is movably matched with the lifting plate 10. The end of the lifting rope 70 away from the crane is connected to the lifting column 104, and the third driving assembly 80 includes a diagonal support rod 801, a push rod 802 and a second guide sleeve 803. The second guide sleeve 803 is fixedly arranged at the bottom of the lifting plate 10 and distributed radially along the lifting plate 10. One end of the push rod 802 extends to the outside of the lifting plate 10 and is connected to the guide assembly 40, and the other end passes through the second guide sleeve 803 and is hingedly connected to the lifting column 104 through the diagonal support rod 801. The push rod 802 is movably matched with the second guide sleeve 803.

[0049] When it is necessary to hoist the wellhead equipment, the crane can be used to reel in the hoisting rope 70, thereby driving the lifting column 104 to move up compared to the hoisting plate 10. The lifting column 104 moves up, the diagonal support rod 801 deflects, and then pushes the push rod 802 so that the push rod 802 moves compared to the second guide sleeve 803. When the push rod 802 moves, it pushes the guide assembly 40 so that the guide assembly 40 moves outward along the radial direction of the hoisting plate 10 until the guide assembly 40 acts on the inner wall of the well body 90. The lifting column 104 drives the hoisting plate 10 to move up, and then drives the two sets of clamping plates 201 to move up. When the two sets of clamping plates 201 move above the wellhead, the staff places the wellhead equipment between the two sets of clamping plates 201, and the drive motor drives the drive shaft 301 to rotate, thereby driving the two sets of clamping plates 201 to move toward each other to clamp the wellhead equipment.

[0050] In one embodiment, an anti-skid layer is provided on opposite sides of the two groups of clamping plates 201. The provision of the anti-skid layer can increase the clamping effect of the two groups of clamping plates 201 on the wellhead equipment and improve the clamping stability of the wellhead equipment.

[0051] In one embodiment, the anti-slip layer may be a rubber layer or a silicone layer, which is not limited here.

[0052] See also Figure 4 In one embodiment, the guide assembly 40 includes a first support plate 401, a guide wheel 402, a support 403 and a first rotating shaft 404. The first support plate 401 is arranged on the outside of the lifting plate 10 and is fixedly connected to the push rod 802. The guide wheels 402 are provided in several groups on the side of the first support plate 401 away from the push rod 802. Each group of the guide wheels 402 is fixedly provided with a group of the first rotating shaft 404 on both sides of the opposite sides. The support 403 is rotatably provided on the outside of each group of the first rotating shaft 404, and the support 403 is fixedly installed on the side wall of the first support plate 401.

[0053] When the diagonal support rod 801 deflects and pushes the push rod 802 to move, the push rod 802 drives the first support plate 401 to move outward along the radial direction of the lifting plate 10, and the first support plate 401 drives the plurality of guide wheels 402 to move synchronously. When the plurality of guide wheels 402 act on the inner wall of the well body 90, the plurality of guide wheels 402 and the first support plate 401 stop moving. When the lifting rope 70 is subsequently reeled in, the lifting column 104 and the lifting plate 10 form a whole and move upward synchronously until the two sets of clamping plates 201 move above the wellhead to perform the wellhead equipment. After the wellhead equipment is clamped, the crane unwinds the lifting rope 70, and the lifting plate 10 and the wellhead equipment move downward along the inside of the well body 90. The lifting plate 10 drives the first support plate 401 to move downward synchronously through the second guide sleeve 803 and the push rod 802. Several guide wheels 402 on one side of the first support plate 401 act on the inner wall of the well body 90 and roll adaptively, thereby providing a guiding effect for the downward movement of the wellhead equipment to prevent the wellhead equipment from colliding with the inner wall of the well body 90 during the downward movement, thereby protecting the wellhead equipment and the inner wall of the well body 90.

[0054] See also Figure 1 、 Figure 6 as well as Figure 7 In one embodiment, the limiting assembly 60 includes a limiting rod 601, a support rod 602 and a first guide sleeve 603. The support rod 602 is fixedly arranged on the upper part of the lifting plate 10, and the first guide sleeve 603 is fixedly arranged on the upper part of the support rod 602 and is horizontally distributed. One end of the limiting rod 601 extends to the inside of the first guide sleeve 603 and is telescopically matched with the first guide sleeve 603, and the other end extends to the outside of the first guide sleeve 603.

[0055] Initially, the end of the limiting rod 601 away from the first guide sleeve 603 acts on the upper part of the well body 90 to provide support for the lifting plate 10, so that the lifting plate 10 is limited to the upper inner part of the well body 90. When the lifting rope 70 is connected to the lifting column 104 and drives the lifting column 104 to move upward, the push rod 802 pushes the first support plate 401 and the plurality of guide wheels 402 to move outward. At the same time, the second drive assembly 50 drives the limiting rod 601 to move toward the inside of the first guide sleeve 603. When the limiting rod 601 moves, it is removed from the upper part of the well body 90. After the two sets of clamping plates 201 clamp the wellhead equipment, the lifting rope 70 unwinds and drives the lifting plate 10, The wellhead equipment and the limit rod 601 move downward along the inside of the well body 90. After the wellhead equipment acts on the inner bottom of the well body 90 and releases the clamping state, the lifting rope 70 is reeled in and drives the lifting plate 10 and the limit rod 601 to move upward along the inside of the well body 90. When the limit rod 601 moves to the top of the well body 90, the second drive assembly 50 drives the limit rod 601 to move toward the outside of the first sleeve 603, and then acts on the upper part of the well body 90 again to limit the lifting plate 10 again. At this time, the crane can control the lifting rope 70 to unwind again, so that the lifting rope 70 is in a relaxed state, thereby preventing the lifting rope 70 from breaking and being damaged due to long-term load-bearing.

[0056] See also Figure 5 In one embodiment, the second driving assembly 50 includes a first rack 501, a transmission gear 502, a second rotating shaft 503, a second bracket plate 504, a second support plate 505 and a second rack 506. The second bracket plate 504 is fixedly arranged on the upper part of the hanging plate 10, and the side wall of the transmission gear 502 is rotatably connected to the second bracket plate 504 through the second rotating shaft 503. One end of the second support plate 505 is connected to the upper end of the first support plate 401, and the other end extends to the bottom of the transmission gear 502. The limiting rod 601 is arranged above the transmission gear 502. The first rack 502 is fixedly arranged at the bottom of the limiting rod 601 and meshes with the transmission gear 502. The second rack 506 is fixedly arranged on the upper part of the second support plate 505 and meshes with the transmission gear 502.

[0057] When the lifting rope 70 drives the lifting column 104 to move upward compared to the lifting plate 10, thereby causing the first support plate 401 and several guide wheels 402 to move outward, the first support plate 401 drives the second support plate 505 and the second rack 506 to move along the bottom of the transmission gear 502. At this time, the transmission gear 502 is driven to rotate by the meshing action of the second rack 506 and the transmission gear 502. When the transmission gear 502 rotates, it drives the limiting rod 601 to move toward the inside of the first guide sleeve 603 through the meshing action with the first rack 501, and then removed from the upper part of the well body 90, thereby releasing the limit of the lifting plate 10.

[0058] See also Figure 5 as well as Figure 6 In one embodiment, a lifting rod 507 is fixedly provided at the bottom of one end of the second support plate 505, and a socket is opened at the upper end of the first support plate 401 (not shown in the figure), and the lower end of the lifting rod 507 extends into the inside of the socket and cooperates with the socket in a telescopic manner. The second support plate 505 and the first support plate 401 are also connected by a second elastic member 508, and the second elastic member 508 is used to provide elastic support for the second support plate 505. An annular stopper 605 is fixedly provided on the outside of the limiting rod 601, and the annular stopper 605 is connected to the first guide sleeve 603 by a third elastic member 604, and the third elastic member 604 is used to provide elastic support for the limiting rod 601.

[0059] When the lifting rope 70 is wound up and drives the lifting column 104 to move up compared to the lifting plate 10, the second rack 506, the transmission gear 502 and the first rack 501 are meshed and drive the limit rod 601 to move toward the inside of the first guide sleeve 603. At this time, the third elastic member 604 is compressed. When the wellhead equipment is placed at the bottom inside the well body 90, the lifting rope 70 drives the lifting plate 10 and the limit rod 601 to move upward so that the limit rod 601 moves above the well body 90 again. The staff can press the second support plate 505, and the second support plate 505 drives the lifting rod 507 to move toward the inside of the insertion hole. The second support plate 505 moves down and drives the second rack 506 to move down. At this time, the second rack 506 is disengaged from the transmission gear 502, and the third elastic member 604 pushes the annular stopper 605 and drives the limit rod 601 to the first The guide sleeve 603 moves outward, causing the limit rod 601 to act on the upper part of the well body 90 again to limit the lifting plate 10. Then the crane unwinds the lifting rope 70, and the lifting column 104 moves downward compared to the lifting plate 10. The diagonal support rod 801 deflects in the opposite direction, thereby pulling the push rod 802 so that the push rod 802 moves in the opposite direction along the second guide sleeve 803, thereby pulling the first support plate 401 and several guide wheels 402 away from the inner wall of the well body 90, thereby realizing the reset of several guide wheels 402. The above-mentioned lifting rope 70 is in a relaxed and non-load-bearing state when unwinding, thereby realizing the protection of the lifting rope 70; when the several guide wheels 402 are reset, the second support plate 505 is released, and the second elastic member 508 pushes the second support plate 505 and the second rack 506 to move upward, and the second rack 506 re-engages with the transmission gear 502 when moving upward.

[0060] See also Figure 1 In one embodiment, a limit plate 103 is fixedly provided on the side wall of the lifting column 104 , and the limit plate 103 is connected to the hanging plate 10 via a first elastic member 105 , which is used to provide elastic tension to the lifting column 104 .

[0061] When the lifting rope 70 is reeled in and drives the lifting column 104 to move up compared to the lifting plate 10, the first elastic member 105 is stretched and lengthened. When the lifting rope 70 drives the limiting rod 601 to move above the well body 90 again, the crane unwinds the lifting rope 70. At this time, the first elastic member 105 can pull the limiting plate 103 and drive the lifting column 104 to move down quickly compared to the lifting plate 10, thereby realizing the rapid reset of the first support plate 401 and several guide wheels 402.

[0062] In one embodiment, the first elastic member 105 , the second elastic member 508 and the third elastic member 604 may be springs or metal springs, which are not limited here.

[0063] In the embodiment of the present invention, initially, the hoisting plate 10 is limited at the wellhead of the well body 90 by the limiting assembly 60. When the wellhead equipment needs to be hoisted, the hoisting rope 70 can be reeled in by a crane, thereby driving the hoisting plate 10 to move upward. When the hoisting plate 10 moves upward, the second driving assembly 50 drives the guide assembly 40 to move and away from the hoisting plate 10. At the same time, the third driving assembly 80 drives the limiting assembly 60 to move to release the limited state of the hoisting plate 10. When the hoisting plate 10 moves upward, it drives the first driving assembly 30 and the clamping assembly 20 to move upward as a whole. When the clamping assembly 20 is moved out of the well body 90, The staff places the wellhead equipment under the lifting plate 10, and then the first drive assembly 30 drives the clamping assembly 20 to move to clamp the wellhead equipment. Then the crane unwinds the lifting rope 70, and the lifting rope 70 drives the lifting plate 10, the guide assembly 40 and the wellhead equipment clamped by the clamping assembly 20 to move downward along the inside of the well body 90. When the wellhead equipment reaches the bottom inside the well body 90, the first drive assembly 30 drives the clamping assembly 20 to move in the opposite direction to release the clamping state of the wellhead equipment, and then place the wellhead equipment at the bottom inside the well body 90. Then the crane unwinds the lifting rope 70. The hoisting rope 70 is wound up, and the hoisting plate 10, the clamping assembly 20 and the guide assembly 40 are moved upward along the inside of the well body 90. When the hoisting plate 10 moves up to the wellhead position of the well body 90, the third driving assembly 80 drives the limiting assembly 60 to move along the radial direction of the hoisting plate 10. The limiting assembly 60 acts on the wellhead of the well body 90, and then limits the hoisting plate 10, the clamping assembly 20 and the guide assembly 40. At this time, the crane unwinds the hoisting rope 70, so that the hoisting rope 70 remains in a relaxed state, avoiding the hoisting rope 70 from breaking and being damaged due to long-term load-bearing, thereby improving the safety of the hoisting rope 70. Service life: When the hoisting plate 10 moves downward along the inside of the well body 90, the guide assembly 40 guides the movement of the hoisting plate 10, thereby preventing the wellhead equipment clamped under the hoisting plate 10 from colliding with the inner wall of the well body 90, thereby avoiding damage to the inner wall of the well body 90 and the wellhead equipment, and improving the safety of the wellhead equipment during the hoisting process. Compared with the existing technology, when the wellhead equipment is lifted to the bottom of the inner side of the well body 90 for construction operations, it can effectively avoid the hoisting rope 70 from breaking and being damaged due to long-term load-bearing, thereby improving the protection and safety of the hoisting rope 70.

[0064] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A drilling platform wellhead equipment rapid lifting tool, characterized in that: It includes a lifting plate, a clamping assembly, a first drive assembly, a guide assembly, a second drive assembly, a limit assembly, a lifting rope and a third drive assembly. The clamping assembly is movably arranged below the hoisting plate, and the first driving assembly is installed on the upper part of the hoisting plate to drive the clamping assembly to move so as to clamp the wellhead equipment. One end of the hoisting rope is connected to the hoisting plate, and the other end is connected to an external crane. The guide assembly is movably arranged on the side of the hoisting plate, and the third drive assembly is installed at the bottom of the hoisting plate to drive the guide assembly to move so as to guide the hoisting of the wellhead equipment along the inside of the well body. The limiting assembly is arranged on the upper part of the hanging plate, and is used to limit the hanging plate at the wellhead of the well body. The second driving assembly is installed on the upper part of the hanging plate. When the third driving assembly drives the guide assembly to move, the second driving assembly drives the limiting assembly to move to release the limiting state of the hanging plate.

2. A drilling platform wellhead equipment rapid lifting tool according to claim 1, characterized in that: The hoisting plate is provided with a slide groove, and two groups of first bracket plates are fixedly provided on the upper portion of the hoisting plate. The two groups of first bracket plates are relatively distributed. The clamping assembly includes two sets of clamping plates, The two groups of clamping plates are relatively distributed below the hanging plate. A sliding rod is fixedly provided on the upper part of the two groups of clamping plates. The upper end of the sliding rod extends from the slide groove to the upper part of the hanging plate. The first driving assembly includes a driving shaft and a driving motor, The drive shaft is rotatably installed between the two groups of the first bracket plates. Two groups of threaded segments are provided on the outside of the drive shaft. The two groups of threaded segments rotate in opposite directions. The upper ends of the two groups of sliding rods are sleeved on the outside of the drive shaft and respectively threadedly cooperate with the two groups of threaded segments. The drive motor is fixedly installed on the upper part of the lifting plate to drive the drive shaft to rotate.

3. A drilling platform wellhead equipment rapid lifting tool according to claim 2, characterized in that: The opposite sides of the two groups of clamping plates are both provided with anti-slip layers.

4. A drilling platform wellhead equipment rapid lifting tool according to claim 1, characterized in that: A lifting column is vertically provided at the center of the hoisting plate. The lifting column is movably matched with the hoisting plate. The end of the hoisting rope away from the crane is connected to the lifting column. The third driving assembly includes a diagonal support rod, a push rod and a second guide sleeve. The second guide sleeve is fixedly arranged at the bottom of the hanging plate and distributed radially along the hanging plate. One end of the push rod extends to the outside of the hanging plate and is connected to the guide assembly, and the other end passes through the second guide sleeve and is hingedly connected to the lifting column through the diagonal support rod. The push rod and the second guide sleeve are movably matched.

5. A drilling platform wellhead equipment rapid lifting tool according to claim 4, characterized in that: The guide assembly includes a first support plate, a guide wheel, a support and a first rotating shaft. The first support plate is arranged on the outside of the lifting plate and is fixedly connected to the push rod. The guide wheels are provided in several groups on the side of the first support plate away from the push rod. A group of the first rotating shafts are fixedly provided on the opposite sides of each group of guide wheels. The support is rotatably provided on the outside of each group of the first rotating shafts, and the support is fixedly installed on the side wall of the first support plate.

6. A drilling platform wellhead equipment rapid lifting tool according to claim 5, characterized in that: The limiting assembly includes a limiting rod, a supporting rod and a first guide sleeve. The support rod is fixedly arranged on the upper part of the lifting plate, the first guide sleeve is fixedly arranged on the upper part of the support rod and is horizontally distributed, one end of the limit rod extends to the inside of the first guide sleeve and is telescopically matched with the first guide sleeve, and the other end extends to the outside of the first guide sleeve.

7. A drilling platform wellhead equipment rapid hoisting tool according to claim 6, characterized in that: The second driving assembly includes a first rack, a transmission gear, a second rotating shaft, a second bracket plate, a second support plate and a second rack, The second bracket plate is fixedly arranged on the upper part of the hanging plate, and the side wall of the transmission gear is rotatably connected to the second bracket plate through the second rotating shaft. One end of the second support plate is connected to the upper end of the first support plate, and the other end extends to the bottom of the transmission gear. The limiting rod is arranged above the transmission gear, and the first rack is fixedly arranged at the bottom of the limiting rod and meshes with the transmission gear. The second rack is fixedly arranged on the upper part of the second support plate and meshes with the transmission gear.

8. A drilling platform wellhead equipment rapid hoisting tool according to claim 7, characterized in that: A lifting rod is fixedly provided at the bottom of one end of the second support plate, a socket is provided at the upper end of the first support plate, the lower end of the lifting rod extends into the socket and is telescopically matched with the socket, the second support plate is further connected to the first support plate by a second elastic member, and the second elastic member is used to provide elastic support for the second support plate. An annular stopper is fixedly provided on the outside of the limiting rod. The annular stopper is connected to the first guide sleeve via a third elastic member. The third elastic member is used to provide elastic support for the limiting rod.

9. A drilling platform wellhead equipment rapid lifting tool according to claim 8, characterized in that: A limit plate is fixedly provided on the side wall of the lifting column. The limit plate is connected to the hanging plate via a first elastic member. The first elastic member is used to provide elastic tension to the lifting column.

10. A drilling platform wellhead equipment rapid hoisting tool according to claim 9, characterized in that: The first elastic member, the second elastic member and the third elastic member are springs or metal springs.

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