CN113279707A - Continuous circulation oil pipe feeding system - Google Patents
Continuous circulation oil pipe feeding system Download PDFInfo
- Publication number
- CN113279707A CN113279707A CN202110694586.6A CN202110694586A CN113279707A CN 113279707 A CN113279707 A CN 113279707A CN 202110694586 A CN202110694586 A CN 202110694586A CN 113279707 A CN113279707 A CN 113279707A
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- Prior art keywords
- support plate
- oil pipe
- taper
- taper hole
- tool body
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- 239000003921 oil Substances 0.000 claims abstract description 51
- 239000010724 circulating oil Substances 0.000 claims abstract description 9
- 239000000346 nonvolatile oil Substances 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 9
- 230000008602 contraction Effects 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 208000017740 grade III prostatic intraepithelial neoplasia Diseases 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 241000446313 Lamella Species 0.000 description 12
- 238000005553 drilling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/04—Hooks
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a continuous circulating oil pipe feeding system, which belongs to equipment in the field of petroleum operation and comprises a single-arm lifting hook, wherein the continuous circulating oil pipe feeding system comprises an upper suspension oil pipe clamping device, a lower fixed oil pipe clamping device and a comprehensive control system; the upper suspension oil pipe clamping device comprises a single-arm lifting hook, a clamp I, a lever support plate I, a fisheye joint cylinder I and an upper feeding tool body; two upper hoisting lugs are symmetrically arranged at the upper ends of the two side walls of the upper feeding tool body, the bottom of the single-arm lifting hook is sleeved outside the upper hoisting lugs, and two taper holes I are symmetrically formed in the top end of the upper feeding tool body. According to the continuous circulation oil pipe feeding system, the number of manual single oil pipe clamps is increased to 2, the oil pipes are hoisted and fed in a continuous circulation clamping mode, and objective requirements of actual production can be met. The special inclined anchor plate not only ensures the clamping force, but also ensures that the oil pipe does not have relative displacement when loosened, and ensures accurate control when the pipe is taken over.
Description
Technical Field
The invention belongs to equipment in the field of petroleum operation, and particularly relates to a continuous circulating oil pipe feeding system.
Background
At present, the mode and method of petroleum drilling are various, the conventional drilling is one oil pipe next to a well, in the drilling and workover processes, the commonly adopted oil pipe clamping tool is in a manual or semi-manual mode, the maintenance time and the difficulty and risk of operation are greatly increased, the clamping tool can enable the oil pipe to generate certain displacement when the oil pipe is loosened, the accurate control during pipe connection is difficult to ensure, the difficulty is increased for construction, the labor intensity of operators is improved, and the tool which can be put into practical use in production and reliably clamped and sent is fewer and fewer. At present, according to the actual requirements of different oil layers, two or more oil pipes are required to be put in sometimes, so that powerful guarantee is provided for improving the recovery ratio and reducing the cost, and therefore an oil pipe feeding device capable of simultaneously putting in a plurality of sets of oil pipes is urgently needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a continuous circulating oil pipe feeding system.
The invention discloses a continuous circulating oil pipe feeding system which comprises a single-arm lifting hook, wherein the continuous circulating oil pipe feeding system comprises an upper suspension oil pipe clamping device, a lower fixed oil pipe clamping device and a comprehensive control system; the upper suspension oil pipe clamping device comprises a single-arm lifting hook, a clamp I, a lever support plate I, a fisheye joint cylinder I and an upper feeding tool body; the upper end of the two side walls of the upper feeding tool body is symmetrically provided with two upper hoisting lugs, the bottom of a single-arm lifting hook is sleeved outside the upper hoisting lugs, the top end of the upper feeding tool body is symmetrically provided with two taper holes I, the interior of the upper feeding tool body below the taper holes I is sequentially provided with a taper hole II and a taper hole III which are communicated with the taper holes I from top to bottom, a clamp I with the bottom positioned in the taper hole I is arranged in the taper hole I, the clamp I comprises a contraction flap I and a support plate I, the two side walls of the support plate I are respectively and rotatably connected with the contraction flap I through a vertical column shaft I, the upper end of the outer side wall of the support plate I is provided with a support lug I, the two side walls of the support lug I are respectively and rotatably connected with a lever support plate I through a joint pin I, the lever support plate I is composed of two symmetrical support plates I, the other ends of the two support, a fisheye joint cylinder I is arranged in the mounting hole I and is in sliding fit with driving sliding chutes I on two sides of the fisheye joint cylinder I through joint pins III; the lower fixed oil pipe clamping device comprises a clamp II, a lever support plate II, a fisheye joint cylinder II and a lower feeding tool body, wherein the two lower feeding tool bodies are fixed through a connecting pin, the top end of each lower feeding tool body is respectively provided with two symmetrical taper holes IV, the interior of each lower feeding tool body below each taper hole IV is sequentially provided with a taper hole V and a taper hole VI which are communicated with the taper hole IV from top to bottom, each clamp II with the bottom positioned in the taper hole IV is arranged in each taper hole IV, each clamp II comprises a contraction flap II and a support plate II, two side walls of each support plate II are respectively and rotatably connected with the contraction flap II through a vertical column shaft II, the upper end of the outer side wall of each support plate II is provided with a support lug II, two side walls of each support lug II are respectively and rotatably connected with a lever support plate II through a joint pin IV, each lever support plate II is composed of two symmetrical support plates II, and the other end of each support plate II is provided with a driving chute II, a mounting hole II is formed in the lower feeding tool body between the two symmetrical support plates II, a fisheye joint cylinder II is mounted in the mounting hole II, and the fisheye joint cylinder II is in sliding fit with the driving sliding chutes II on the two sides of the fisheye joint cylinder II through a joint pin V; the comprehensive control system comprises an earthquake-resistant pressure gauge, an air reversing valve, a pneumatic triple piece and a control box, wherein the top end of the control box is provided with the earthquake-resistant pressure gauge and the air reversing valve, the lower pipeline of the earthquake-resistant pressure gauge is connected with the outlet end of the pneumatic triple piece, a single port on one side of the air reversing valve is connected with the outlet end of the pneumatic triple piece through an air source pipeline, a double port on the other side of the air reversing valve is connected with a fisheye joint cylinder I and a fisheye joint cylinder II through air source pipelines respectively, and the inlet end of the pneumatic triple piece is communicated with an air source inlet through an air source pipeline.
As a further improvement of the invention, a sliding groove I is formed in the middle of a support plate I, symmetrical support bodies I are fixed on an upper feeding tool body, the support plate I is placed in the middle of the support plate I, support holes I corresponding to the sliding groove I are formed in the upper ends of the support bodies I, and joint pins II penetrate through the support holes I and the sliding groove I.
As a further improvement of the invention, the middle part of the support plate II is provided with a sliding groove II, the lower feeding tool body is fixed with a symmetrical support body II, the support plate II is arranged in the middle of the support plate II, the upper end of the support body II is provided with a support hole II corresponding to the sliding groove II, and a joint pin VI passes through the support hole II and the sliding groove II.
As a further improvement of the invention, a torsion spring I is sleeved on the upright shaft I, and steel wire clamping claws on two sides of the torsion spring I are respectively fixed on the side edges of the contraction flap I and the support plate I; and a torsion spring II is sleeved on the upright shaft II, and steel wire clamping claws on two sides of the torsion spring II are respectively fixed on the side edges of the contraction flap II and the support plate II.
As a further improvement of the invention, a vertical trapezoidal groove I is formed in the inner wall of the contraction valve I, and an anchor plate I with a trapezoidal axial direction is arranged in the trapezoidal groove I; and a vertical trapezoidal groove II is formed in the inner wall of the contraction lobe II, and an anchor plate II with a trapezoidal axial direction is arranged in the trapezoidal groove II.
As a further improvement of the invention, the taper angle alpha of the taper hole I is 70-100 degrees, the taper angle beta of the taper hole II is 10-30 degrees, and the taper angle theta of the taper hole III is 50-70 degrees; the taper angle gamma of the taper hole IV is 70-100 degrees, the taper angle sigma of the taper hole V is 10-30 degrees, and the taper angle omega of the taper hole VI is 50-70 degrees.
As a further improvement of the invention, the taper angle alpha of the taper hole I is preferably 90 degrees, the taper angle beta of the taper hole II is preferably 18 degrees, and the taper angle theta of the taper hole III is preferably 60 degrees; the taper angle gamma of the taper hole IV is preferably 90 degrees, the taper angle sigma of the taper hole V is preferably 18 degrees, and the taper angle omega of the taper hole VI is preferably 60 degrees.
As a further improvement of the invention, the outer walls of two sides of the feeding tool body below the upper hoisting lug are both fixed with lower hoisting lugs, and the upper hoisting lug outside the single-arm lifting hook is provided with a drop-proof pin penetrating through the upper hoisting lug and the lower hoisting lug.
As a further improvement of the invention, the upper ends of the two single-arm lifting hooks are connected through a single-arm lifting hook connecting cross rod.
According to the continuous circulation oil pipe feeding system, the number of manual single oil pipe clamps is increased to 2, the oil pipes are hoisted and fed in a continuous circulation clamping mode, and objective requirements of actual production can be met. The special inclined plane anchor plate not only guarantees clamping force, but also guarantees no relative displacement of an oil pipe when loosened, guarantees accurate control when the pipe is taken over, provides powerful guarantee for realizing automatic operation, and can reduce the labor intensity of operators.
Drawings
FIG. 1 is a schematic illustration of a coiled tubing running system according to the present invention;
FIG. 2 is a top view of the suspended tubing gripping apparatus of the present invention;
FIG. 3 is a cross-sectional view of the upper hanging tubing retainer of the present invention;
FIG. 4 is a top view of the lower stationary oil pipe clamp of the present invention;
fig. 5 is a cross-sectional view of the lower stationary oil pipe clamp of the present invention.
Detailed Description
The invention discloses a continuous circulating oil pipe feeding system which comprises an upper suspension oil pipe clamping device, a lower fixed oil pipe clamping device and a comprehensive control system; the upper suspension oil pipe clamping device comprises a single-arm lifting hook 1, a clamp I, a lever support plate I12, a fisheye joint cylinder I13 and an upper feeding tool body 15; two upper hoisting lugs 26 are symmetrically arranged at the upper ends of the two side walls of the upper feeding tool body 15, the bottoms of the single-arm hoisting hooks 1 are sleeved outside the upper hoisting lugs 26, the upper ends of the two single-arm hoisting hooks 1 are connected through a single-arm hoisting hook connecting cross rod 2, the single-arm hoisting hooks 1 can play a role in hanging and hoisting the upper feeding tool body 15, and the upper feeding tool has high load and impact fatigue resistance; lower hoisting lugs 32 are fixed on the outer walls of two sides of the feeding tool body 15 below the upper hoisting lugs 26, and anti-drop pins 14 penetrating through the upper hoisting lugs 26 and the lower hoisting lugs 32 are arranged on the upper hoisting lugs 26 outside the single-arm lifting hook 1, so that the single-arm lifting hook 1 can be prevented from dropping off. The top end of the upper feeding tool body 15 is symmetrically provided with two taper holes I23, the inner portion of the upper feeding tool body 15 below the taper holes I23 is sequentially provided with taper holes II 24 and taper holes III 25 communicated with the taper holes I23 from top to bottom, the taper angle alpha of each taper hole I23 is 70-100 degrees, the taper angle beta of each taper hole II 23 is 10-30 degrees, the taper angle beta of each taper hole II 24 is 18 degrees, the taper angle theta of each taper hole III 25 is 50-70 degrees, the taper angle theta of each taper hole III 25 is 60 degrees, and a clamp I with the bottom located in each taper hole I23 is arranged in each taper hole I23. Anchor clamps I is including contracting lamella I3 and backup pad I5, all rotate through stand axle I4 on the both sides wall of backup pad I5 and be connected with contracting lamella I3, the contracting lamella I3 that backup pad I5 can support both sides is fixed, can inwards contract after contracting lamella I3 side receives thrust, all be equipped with indent 1.6 mm's circular arc I on contracting lamella I3 and backup pad I5's the outer conical surface, this circular arc I continues 20~200mm on the axis, can play the effect of convenient unblock that makes progress. The inner wall of the contraction valve I3 is provided with a vertical trapezoidal groove I, an anchor plate I7 with a trapezoidal axial direction is installed in the trapezoidal groove I, the anchor plate I7 is a plate with thorns and can play a role in tightly holding an oil pipe, the anchor plate I7 with a corresponding specification can be replaced according to oil pipes with different sizes, and the anchor plate I7 can ensure that the oil pipes do not have relative displacement when being loosened; the last torsional spring I8 that has cup jointed of stand axle I4, the steel wire jack catch of 8I both sides of torsional spring is fixed respectively on the side of shrink lamella I3 and backup pad I5, gives shrink lamella I3 an outside tension, makes shrink lamella I3 open under the condition of not receiving thrust. The utility model discloses a tool body, including backup pad I5, I both sides wall of backup pad I5 are all connected with lever extension board I12 through I6 rotations of joint pin on the lateral wall upper end of support pad I5, lever extension board I12 constitute by two symmetrical extension boards I44, two extension boards I44's the other end all opened drive spout I, it has mounting hole I27 to send into on the tool body 15 on between two extension boards I44, installs fisheye joint cylinder I13 in mounting hole I27, is equipped with the joint pin III 11 that runs through its output on the fisheye joint cylinder I13, and the both ends of joint pin III 11 pass the drive spout I of both sides respectively and with I sliding fit of drive spout, and can freely rotate in drive spout I. A sliding groove I is formed in the middle of the support plate I44, a symmetrical support body I10 is fixed on the upper feeding tool body 15, the support plate I44 is arranged in the middle of the support plate I, a support hole I corresponding to the sliding groove I is formed in the upper end of the support body I10, a joint pin II 9 penetrates through the support hole I and the sliding groove I, is in sliding fit with the sliding groove I and can rotate freely, and the support body I10 plays a role in supporting the lever support plate I12. The power end of the lever support plate I12 is connected with a fisheye joint cylinder I13, the middle end of the lever support plate I12 is in supporting connection with a support body I10, the output end of the lever support plate I is connected with a support plate I5, and lever force can be output to the support plate I5.
The lower fixed oil pipe clamping device comprises a clamp II, a lever support plate II 38, a fisheye joint cylinder II 39 and lower feeding tool bodies 16, the two lower feeding tool bodies 16 are fixed through connecting pins 17, the top ends of the lower feeding tool bodies 16 are respectively provided with two symmetrical taper holes IV 28, the interior of the lower feeding tool body 16 below the taper holes IV 28 is sequentially provided with a taper hole V29 and a taper hole VI 30 which are communicated with the taper hole IV 28 from top to bottom, the taper angle gamma of the taper hole IV 28 is 70-100 degrees and preferably 90 degrees, the taper angle sigma of the taper hole V29 is 10-30 degrees and preferably 18 degrees, the taper angle omega of the taper hole VI 30 is 50-70 degrees and preferably 60 degrees, and the clamp II with the bottom positioned in the taper hole IV 28 is arranged in each taper hole IV 28. Anchor clamps II include shrink lamella II 33 and backup pad II 34, all rotate through II 35 of stand column axle on the both sides wall of backup pad II 34 and be connected with shrink lamella II 33, it is fixed that II 33 of shrink lamella that backup pad 34 can support both sides can inwards contract after receiving thrust, all be equipped with indent 1.6 mm's circular arc II on shrink lamella II 33 and the outer conical surface of backup pad II 34, this circular arc II continues 20~200mm on the axis, can play the effect of convenient unblock that makes progress. The inner wall of the contraction valve II 33 is provided with a vertical trapezoidal groove II, an anchor plate II 43 with a trapezoidal axial direction is arranged in the trapezoidal groove II, the anchor plate II 43 is a plate with thorns and can play a role of tightly holding the oil pipe, the anchor plate II 43 with corresponding specifications can be replaced according to the oil pipes with different sizes, and the anchor plate II 43 can ensure that the oil pipes do not have relative displacement when being loosened; a torsion spring II 42 is sleeved on the upright post shaft II 35, steel wire clamping claws on two sides of the torsion spring II 42 are respectively fixed on the side edges of the contraction lobe II 33 and the support plate II 34, and an outward tension is provided for the contraction lobe II 33, so that the contraction lobe II 33 is opened under the condition of not bearing thrust. The upper end of the outer side wall of the supporting plate II 34 is provided with a supporting lug II, two side walls of the supporting lug II are rotatably connected with a lever supporting plate II 38 through a joint pin IV 36, the lever supporting plate II 38 is composed of two symmetrical supporting plates II 45, the other end of each supporting plate II 45 is provided with a driving sliding groove II, a mounting hole II 31 is formed in the lower feeding tool body 16 between the two symmetrical supporting plates II 45, a fisheye joint cylinder II 39 is mounted in the mounting hole II 31, a joint pin V37 penetrating through the output end of the fisheye joint cylinder II 39 is arranged on the fisheye joint cylinder II 39, and two ends of the joint pin V37 penetrate through the driving sliding grooves II on two sides, are in sliding fit with the driving sliding grooves II and can freely rotate in the driving sliding grooves II. The middle part of the support plate II 45 is provided with a sliding groove II, the lower feeding tool body 16 is fixedly provided with a symmetrical support body II 40, the support plate II 45 is arranged in the middle of the support plate II, the upper end of the support body II 40 is provided with a support hole II corresponding to the sliding groove II, a joint pin VI 41 penetrates through the support hole II and the sliding groove II, is in sliding fit with the sliding groove II and can freely rotate, and the support body II 40 plays a role in supporting the lever support plate II 38. The power end of the lever support plate II 38 is connected with the fisheye joint cylinder II 39, the middle end of the lever support plate II is in supporting connection with the support body II 40, the output end of the lever support plate II is connected with the support plate II 34, and lever force can be output to the support plate II 34.
The comprehensive control system comprises a shock-proof pressure gauge 18, an air reversing valve 19, a pneumatic triple part 20 and a control box 22, wherein the top end of the control box 22 is provided with the shock-proof pressure gauge 18 and the air reversing valve 19, the shock-proof pressure gauge 18 is clamped on a pressure gauge mounting hole of an operation table of the control box 22 through a threaded round cap, the air reversing valve 19 is clamped on a reversing valve mounting hole of the operation table of the control box 22 through a threaded round cap, and the pneumatic triple part 20 is fixed on a support in the middle of the control box 22. The lower pipeline of the shock-proof pressure gauge 18 is connected with the outlet end of the pneumatic triple piece 20, the single port on one side of the air reversing valve 19 is connected with the outlet end of the pneumatic triple piece 20 through an air source pipeline 21, the double port on the other side of the air reversing valve is connected with the fisheye joint cylinder I13 or the fisheye joint cylinder II 39 through the air source pipeline 21, and the inlet end of the pneumatic triple piece 20 is communicated with the air source inlet through the air source pipeline 21. The air reversing valve 19 can respectively switch a fisheye joint cylinder I13 to supply air and a fisheye joint cylinder II 39 to supply air, and control the expansion and contraction effects of the fisheye joint cylinder I13 and the fisheye joint cylinder II 39, the shock-proof pressure gauge 18 respectively detects the pipeline pressure of the upper suspension oil pipe clamping device and the lower fixed oil pipe clamping device, the pneumatic triple piece 20 plays the roles of filtering, pressure regulating and oil feeding, the air source pipeline 21 is a high-pressure hose, and the outer surface of the air source pipeline is provided with a layer of protective jacket, so that the continuous circulation oil pipe can be fed into the system for supplying air.
When the lifting tool is used, the lifting device is driven to be connected with the single-arm lifting hook 1 and the upper feeding tool body 15 connected with the single-arm lifting hook, the bottom of the clamp I is located in the taper hole I23, the bottom of the clamp II is located in the taper hole IV 28, the horizontal cross section of the interior of the clamp I is oval under the outward-stretching action of the torsion spring I8, the horizontal cross section of the interior of the clamp II is oval under the outward-stretching action of the torsion spring II 42, the oil pipes are convenient to place, two oil pipes are respectively placed into the clamps I on two sides, the air reversing valve 19 connected with the fisheye joint cylinder I13 is moved to the left side, the fisheye joint cylinder I13 is started to enable the power end of the lever support plate I12 to be supported, the lever support plate I12 is supported by the joint pin II 9 as a fulcrum, the clamp I is pressed downwards by utilizing the lever principle, the clamp I is enabled to move downwards to enter the taper hole II 24, and the contraction I3 on two sides of the support plate I5 is gradually tightened inwards during operation, when the automatic running is parallel to the upper feeding tool body 15, the automatic running stops, the horizontal section of the inner part of the clamp I is circular at the moment and clamps the oil pipe, and the lower part of the oil pipe is arranged below the outer part of the upper feeding tool body 15. Then the hoisting equipment is driven to ascend to hoist the upper suspended oil pipe clamping device, the lower parts of the two oil pipes are inserted into a fixture II of the lower fixed oil pipe clamping device, an air reversing valve 19 connected with a fisheye joint cylinder II 39 is moved to the left side, the fisheye joint cylinder II 39 is started to support the power end of a lever support plate II 38, the lever support plate II 38 is supported by a joint pin VI 41 as a fulcrum, the fixture II is pressed downwards by utilizing the lever principle, the fixture II runs downwards to enter a tapered hole V29, contraction lobes II 33 on two sides of a support plate II 34 are gradually tightened inwards during running, when the fixture II automatically runs to be parallel to a lower feeding tool body 16, the fixture II stops, the horizontal section inside the fixture II is circular and clamps the oil pipes; simultaneously, the air reversing valves 19 connected with the fisheye joint air cylinder I13 are all moved to the right side, the air inlet direction of the fisheye joint air cylinder I13 is converted, the piston of the fisheye joint air cylinder I13 moves downwards, the output end of the lever support plate I12 is driven to be upwards tilted, the clamp I is upwards lifted, the clamp I is driven to move to the 4 taper holes I23 from the taper holes II 2, meanwhile, the oil pipe is loosened, and a new oil pipe is installed again. And after the oil pipe clamped in the clamp II is connected with lower equipment, moving the air reversing valves 19 connected with the fisheye joint air cylinders II 39 to the right side, lifting the clamp II upwards through the lever support plate II 38, enabling the clamp II to move into the taper holes IV 28 from the taper holes V29, loosening the oil pipe, waiting for the upper hanging oil pipe clamping device to feed into a new oil pipe, and circularly performing the operation.
Claims (9)
1. A continuous circulation oil pipe feeding system comprises a single-arm lifting hook (1), and is characterized in that the continuous circulation oil pipe feeding system comprises an upper suspension oil pipe clamping device, a lower fixed oil pipe clamping device and a comprehensive control system; the upper suspension oil pipe clamping device comprises a single-arm lifting hook (1), a clamp I, a lever support plate I (12), a fisheye joint cylinder I (13) and an upper feeding tool body (15); two upper hoisting lugs (26) are symmetrically arranged at the upper ends of two side walls of an upper feeding tool body (15), the bottom of a single-arm lifting hook (1) is sleeved outside the upper hoisting lugs (26), two taper holes I (23) are symmetrically formed in the top end of the upper feeding tool body (15), a clamp I with the bottom positioned in the taper hole I (23) is arranged in the upper feeding tool body (15) below the taper hole I (23) from top to bottom, the taper hole II (24) and the taper hole III (25) are communicated with the taper hole I (23), the clamp I comprises a contraction flap I (3) and a support plate I (5), the two side walls of the support plate I (5) are rotatably connected with the contraction flap I (3) through a vertical column shaft I (4), a support lug I is arranged at the upper end of the outer side wall of the support plate I (5), and a lever support plate I (12) is rotatably connected to the two side walls of the support lug I (6), the lever support plate I (12) is composed of two symmetrical support plates I (44), the other ends of the two support plates I (44) are provided with driving chutes I, an upper feeding tool body (15) between the two support plates I (44) is provided with an installation hole I (27), a fisheye joint cylinder I (13) is installed in the installation hole I (27), and the fisheye joint cylinder I (13) is in sliding fit with the driving chutes I on the two sides of the fisheye joint cylinder I through a joint pin III (11); the lower fixed oil pipe clamping device comprises a clamp II, a lever support plate II (38), a fisheye joint cylinder II (39) and a lower feeding tool body (16), the two lower feeding tool bodies (16) are fixed through a connecting pin (17), the top end of the lower feeding tool body (16) is respectively provided with two symmetrical taper holes IV (28), the interior of the lower feeding tool body (16) below the taper holes IV (28) is sequentially provided with a taper hole V (29) and a taper hole VI (30) which are communicated with the taper holes IV (28) from top to bottom, the interior of each taper hole IV (28) is provided with a clamp II the bottom of which is positioned in the corresponding taper hole IV (28), the clamp II comprises a contraction flap II (33) and a support plate II (34), two side walls of the support plate II (34) are respectively connected with the contraction flap II (33) in a rotating mode through a vertical column shaft II (35), and the upper end of the outer side wall of the support plate II (34) is provided with a support lug II, two side walls of the support lug II are rotatably connected with a lever support plate II (38) through a joint pin IV (36), the lever support plate II (38) is composed of two symmetrical support plates II (45), the other end of each support plate II (45) is provided with a driving chute II, a lower feeding tool body (16) between the two symmetrical support plates II (45) is provided with a mounting hole II (31), a fisheye joint cylinder II (39) is installed in the mounting hole II (31), and the fisheye joint cylinder II (39) is in sliding fit with the driving chutes II on two sides of the fisheye joint cylinder II through a joint pin V (37); the comprehensive control system comprises a shock-proof pressure gauge (18), an air reversing valve (19), a pneumatic triple piece (20) and a control box (22), the shock-proof pressure gauge (18) and the air reversing valve (19) are installed at the top end of the control box (22), a lower pipeline of the shock-proof pressure gauge (18) is connected with an outlet end of the pneumatic triple piece (20), a single port on one side of the air reversing valve (19) is connected with an outlet end of the pneumatic triple piece (20) through an air source pipeline (21), double ports on the other side are respectively connected with a fisheye joint cylinder I (13) and a fisheye joint cylinder II (39) through an air source pipeline (21), and an inlet end of the pneumatic triple piece (20) is communicated with an air source inlet through the air source pipeline (21).
2. The coiled tubing running system of claim 1, wherein the support plate I (44) is provided with a sliding groove I in the middle, the upper running tool body (15) is fixed with a symmetrical support body I (10) for placing the support plate I (44) in the middle, the upper end of the support body I (10) is provided with a support hole I corresponding to the sliding groove I, and the joint pin II (9) penetrates through the support hole I and the sliding groove I.
3. The coiled tubing running system of claim 1, wherein the support plate II (45) is provided with a sliding groove II in the middle, the lower running tool body (16) is fixed with a symmetrical support II (40) for placing the support plate II (45) in the middle, the upper end of the support II (40) is provided with a support hole II corresponding to the sliding groove II, and the joint pin VI (41) passes through the support hole II and the sliding groove II.
4. The coiled tubing running system according to claim 1, wherein a torsion spring I (8) is sleeved on the column shaft I (4), and steel wire claws at two sides of the torsion spring I (8) are respectively fixed on the side edges of the contraction flap I (3) and the support plate I (5); and a torsion spring II (42) is sleeved on the upright shaft II (35), and steel wire clamping claws on two sides of the torsion spring II (42) are respectively fixed on the side edges of the contraction flap II (33) and the support plate II (34).
5. The continuous circulating oil pipe feeding system as claimed in claim 1 or 4, wherein the inner wall of the contraction lobe I (3) is provided with a vertical trapezoidal groove I, and an anchor plate I (7) which is trapezoidal in the axial direction is arranged in the trapezoidal groove I; and a vertical trapezoidal groove II is formed in the inner wall of the contraction valve II (33), and an anchor plate II (43) with a trapezoidal axial direction is arranged in the trapezoidal groove II.
6. The continuous circulating oil pipe feeding system as claimed in claim 1, wherein the taper angle α of the taper hole i (23) is 70 ° -100 °, the taper angle β of the taper hole ii (24) is 10 ° -30 °, and the taper angle θ of the taper hole iii (25) is 50 ° -70 °; the taper angle gamma of the taper hole IV (28) is 70-100 degrees, the taper angle sigma of the taper hole V (29) is 10-30 degrees, and the taper angle omega of the taper hole VI (30) is 50-70 degrees.
7. The coiled tubing running system according to claim 6, wherein taper angle α of taper hole I (23) is preferably 90 °, taper angle β of taper hole II (24) is preferably 18 °, taper angle θ of taper hole III (25) is preferably 60 °; the taper angle γ of the taper hole iv (28) is preferably 90 °, the taper angle σ of the taper hole v (29) is preferably 18 °, and the taper angle ω of the taper hole vi (30) is preferably 60 °.
8. The coiled tubing running system according to claim 1, wherein lower lifting lugs (32) are fixed on the outer walls of both sides of the running tool body (15) below the upper lifting lugs (26), and the upper lifting lugs (26) outside the single-arm lifting hook (1) are provided with anti-drop pins (14) penetrating through the upper lifting lugs (26) and the lower lifting lugs (32).
9. The coiled tubing running system according to claim 1, wherein the upper ends of the two single-armed hooks (1) are connected by a single-armed hook connecting cross bar (2).
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| CN113279707B (en) | 2022-04-05 |
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