CN116081408A - Logging device of offshore drilling platform - Google Patents
Logging device of offshore drilling platform Download PDFInfo
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- CN116081408A CN116081408A CN202310244188.3A CN202310244188A CN116081408A CN 116081408 A CN116081408 A CN 116081408A CN 202310244188 A CN202310244188 A CN 202310244188A CN 116081408 A CN116081408 A CN 116081408A
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- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 239000003129 oil well Substances 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
- B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
- B65H75/4405—Traversing devices; means for orderly arranging the material on the drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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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
- E21B47/00—Survey of boreholes or wells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/34—Handled filamentary material electric cords or electric power cables
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to the technical field of offshore exploration, in particular to a logging device of an offshore drilling platform, which comprises a cable winch, a cable arrangement mechanism, a guide wheel set and a logging instrument, wherein the logging instrument comprises a power pup joint, a storage pup joint and a logging pup joint, the logging instrument is connected with the cable winch through a logging cable, the logging cable extends out of the cable winch and then is downwards extended after being turned by the guide wheel set, lifting of the logging instrument is realized through forward/reverse operation of the cable winch, and the tight winding of the logging cable on a winding drum can be effectively ensured through a tight cable pressing assembly and a tensioning detection assembly, so that the stable operation of the logging system can be effectively ensured, and meanwhile, the control of the downhole operation depth of the logging device can be effectively improved.
Description
Technical Field
The invention relates to the technical field of offshore exploration, in particular to a logging device of an offshore drilling platform.
Background
Logging winches are widely used in oilfield logging companies to provide different downhole equipment for logging or perforating operations. Because the well conditions in the oil well are complex, the resistance of the cable in the oil well is different, particularly, the cable inevitably generates friction with the wall of the oil well at the corner of the vertical end and the horizontal well section of the oil well, and the friction force cannot be accurately calculated; the cable may also be attracted to the borehole wall by downhole fluids. Because the cable tensiometer is installed on the ground, the cable tension observed by an operator is very different from the tensile force applied to the downhole instrument end, and vibration and rope release of the logging cable are easily caused.
At present, logging equipment needs two people to watch all weather at the same time, and man-made misoperation or fatigue accidents are more likely to occur on an offshore drilling platform. Because the environment of the offshore drilling platform is complex, the cable winding state on the logging winch is difficult to control and detect, and because operators on duty cannot accurately pre-judge the equipment state and faults, the equipment is stopped and faults occur, and any logging operation interruption can cause economic loss of about 36 ten thousand yuan/hour.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the logging device of the offshore drilling platform, which can effectively ensure the tight winding of a logging cable on a winding drum through a tight cable pressing assembly and a tensioning detection assembly, further can effectively ensure the stable operation of a logging system, and can effectively improve the control of the underground operation depth of the logging device.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the logging device of the offshore drilling platform comprises a cable winch, a cable arrangement mechanism, a guide wheel set and a logging instrument, wherein the logging instrument comprises a power nipple, a storage nipple and a logging nipple, the logging instrument is connected with the cable winch through a logging cable, the logging cable extends downwards after being turned by the guide wheel set after extending from the cable winch, and the lifting of the logging instrument is realized through the forward/reverse operation of the cable winch;
the power supply nipple is used for supplying power to the storage nipple and the logging nipple, the logging unit in the logging nipple is used for measuring the in-well geological state of the offshore drilling platform to form in-well data, the storage unit in the logging nipple can be connected with the storage module of the storage nipple through the same communication line, and the in-well data acquired by the logging nipple are stored by the storage nipple;
the cable winch is driven after the speed change mechanism performs transmission speed change through a speed change mechanism and an outer rotor permanent magnet synchronous motor, and the output end of the outer rotor permanent magnet synchronous motor is connected with the speed change mechanism;
the cable winch comprises a cable drum, a tight cable pressing assembly, a tension detection assembly and a cable arranging mechanism, wherein the tight cable pressing assembly is arranged on one side of the cable drum, after the logging cable is wound on the cable drum, the logging cable is tightly pressed on the cable drum through the tight cable pressing assembly, and the contact area between the tight cable pressing assembly and the logging cable on the cable drum can be increased along with the increase of the winding amount of the logging cable on the cable drum;
the tensioning detection assembly is arranged at the position of the logging cable between the rope outlet point on the cable drum and the cable arranging mechanism, and can detect the tensioning state of the logging cable and simultaneously increase the winding angle of the logging cable wound on the cable drum.
Further, the tight cable pressing component, the movable supporting frame, the cable pressing guide roller, the translation driving component and the connecting rod arm group;
the side face of the movable supporting frame is of a C-shaped structure, two ends of the C-shaped structure can be close to the positions near the upper side and the lower side of the cable drum respectively, and the containing space in the middle of the C-shaped structure can contain the circumferential section of the cable drum;
two ends of the movable supporting frame are provided with two groups of connecting rod arm groups, two ends of the cable pressing guide roller are rotatably connected to corresponding hinge shafts of the connecting rod arm groups, and the cable pressing guide roller is provided with a plurality of cable pressing guide rollers and is parallel to the circumferential side surface of the cable drum;
the lower end of the movable supporting frame is connected with two groups of translation driving assemblies, and the movable supporting frame is driven by the translation driving assemblies to be close to and far away from the cable drum.
Further, the translation driving assembly comprises a nut sliding block, a transmission screw, a sliding guide rail and a cable pressing motor;
the link arm group comprises a first link arm, a second link arm, a third link arm and a fourth link arm;
the nut sliding block is fixedly connected with the lower end of the movable supporting frame, the nut sliding block is supported on the sliding guide rail in a sliding manner, the nut sliding block is in threaded connection with the transmission screw, the cable pressing motor drives the transmission screw to rotate, and the movable supporting frame is controlled to be gradually far away from the cable drum along with the gradual winding of the logging cable on the cable drum so as to adjust the gap between the cable pressing guide roller and the cable drum, so that the logging cable is tightly wound on the cable drum layer by layer;
the head end of the first link arm and the tail end of the fourth link arm are rotatably connected with the upper side and the lower side of the movable supporting frame through the hinge shafts, and the hinge shafts are rotatably provided with cable pressing guide rollers;
when the logging cable is wound on the cable drum by less than 10 layers, the cable guide rollers positioned in the middle of the connecting rod arm set are abutted against the logging cable, and the cable guide rollers positioned at the two ends of the connecting rod arm set cannot contact the logging cable;
when the logging cable is wound on the cable winding drum to be more than 10 layers, the cable pressing guide rollers at the two ends of the connecting rod arm set are abutted against the logging cable, so that the plurality of cable pressing guide rollers on the connecting rod arm set are abutted against the logging cable, and the logging cable is tightly wound on the cable winding drum.
Further, the cable arranging mechanism comprises a cable arranging motor, a cable arranging sliding seat, a cable limiting block, a cable arranging screw rod and a guide rod;
the two ends of the cable arranging screw rod are parallel and provided with guide rods, the cable arranging sliding seat is in threaded connection with the cable arranging screw rod, the guide rods realize sliding guide on the cable arranging sliding seat, and the output end of the cable arranging motor is in transmission connection with the cable arranging screw rod;
a cable limiting block is arranged on the cable arranging slide seat, a limiting hole is formed in the cable limiting block, and the logging cable passes through the limiting hole;
the cable arranging mechanism is arranged between a rope outlet point of the logging cable on the cable drum and the guide wheel set.
Further, the tensioning detection assembly comprises a cable contact roller, a torsion swing arm, a supporting box body, a torsion rotating shaft, a spring torsion arm, a first spring seat, a second spring, a first spring, a trigger rod, a touch pin, a trigger and a control transmitter;
the two ends of the cable contact roller are rotatably arranged at one end of the torsion swing arm, the other end of the torsion swing arm is provided with a torsion rotating shaft capable of synchronously rotating, the torsion rotating shaft is rotatably supported and arranged in the supporting box body, and a spring torsion arm capable of synchronously rotating is arranged on the torsion rotating shaft and positioned in the supporting box body;
one end of the spring torsion arm is connected with a first spring, the other end of the first spring is connected with a first spring seat, the other end of the spring torsion arm is connected with a second spring, the other end of the second spring is connected with a second spring seat, and the first spring seat and the second spring seat are fixedly arranged in the supporting box body;
the first spring applies a first pretightening force to the spring torsion arm, the second spring applies a second pretightening force to the spring torsion arm, and the first pretightening force and the second pretightening force enable the torsion rotating shaft to generate a movement trend towards the same direction, so that the cable contact roller is abutted to the lower side of the logging cable.
Further, a trigger rod is further arranged on the torsion rotating shaft, a touch pin is arranged at a corresponding position on a rotating path of the trigger rod, the touch pin is arranged on a trigger, and the trigger is electrically connected with the control transmitter;
the movement trend of the torsion rotating shaft enables the trigger rod to move towards the touch pin, cable acting force is applied to the cable contact roller when the logging cable is in a tensioning state, the cable acting force enables the movement direction of the torsion rotating shaft to be opposite to the movement direction of the torsion rotating shaft caused by the first spring and the second spring, and then when the logging cable is in a loosening state, the trigger rod toggles the touch pin, so that the trigger generates an electric signal, and the electric signal is sent to a control system of the cable winch through a control transmitter;
the first spring and the second spring enable the movement trend generated by the torsion rotating shaft to enable the cable contact roller to act on the logging cable, the rope outlet position of the logging cable on the cable drum can be changed, and the wrapping angle of the logging cable on the cable drum is increased.
Compared with the prior art, the invention provides a logging device of an offshore drilling platform, which has the following beneficial effects:
1. according to the invention, the tight cable pressing assembly is arranged on the logging winch, the movable support frame of the C-shaped structure on the tight cable pressing assembly is hinged with the plurality of cable pressing guide rollers arranged side by side through the connecting rod arm, when the logging cable is wound on the winding drum to be smaller than 10 layers, the cable pressing guide rollers in the middle of the upper part of the connecting rod arm can be used for pressing a small amount of logging cable in the current state, when the logging cable is wound on the winding drum to be larger than 10 layers, all the cable pressing guide rollers on the connecting rod arm can be used for simultaneously pressing the logging cable so as to realize larger pressing points and pressing forces, and further, after the logging cable is wound on the winding drum to be larger than 10 layers, the effective cable tight winding effect can be ensured.
2. The tension detection assembly is arranged between the cable arranging mechanism and the cable winding drum, the cable contact roller can be used for lifting the logging cable upwards by a certain amplitude while detecting the tension state of the logging cable, so that the rope outlet/inlet point of the logging cable on the cable winding drum is lifted, the wrapping angle of the logging cable on the winding drum is further improved, the winding of the logging cable on the winding drum is more stable and easy to control, and meanwhile, the compaction force of the cable contact roller on the logging cable is gradually increased along with the increase of the winding thickness of the logging cable (the downward movement of the rope outlet/inlet point of the logging cable on the winding drum), so that the stable winding of the logging cable can be further ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a logging device of an offshore drilling rig of the present invention;
FIG. 2 is another directional elevation view of the logging apparatus of the present invention;
FIG. 3 is a schematic view of the cable winch of the present invention;
FIG. 4 is a schematic cross-sectional view of the cable winch of the present invention;
FIG. 5 is a schematic view of a cable arranging mechanism according to the present invention;
FIG. 6 is a schematic cross-sectional view of the tension sensing assembly of the present invention;
FIG. 7 is a schematic side view of the tension sensing assembly of the present invention;
in the figure:
a cable winch 1;
a cable drum 11;
the tight cable assembly 12, the movable support 121, the cable guide roller 122, the nut slider 123, the drive screw 124, the sliding guide rail 125, the cable press motor 126, the first link arm 127, the second link arm 128, the third link arm 129, the fourth link arm 120;
a speed change mechanism 2; an outer rotor permanent magnet synchronous motor 3;
the cable arranging mechanism 4, the cable arranging motor 41, the cable arranging sliding seat 42, the cable limiting block 43, the cable arranging screw 44 and the guide rod 45;
a guide wheel set 5; a logging cable 6; a power nipple 7; a storage nipple 8; a logging nipple 9;
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.
The invention is described in detail below with reference to fig. 1-7, and the logging device of the offshore drilling platform comprises a cable winch 1, a cable arrangement mechanism 4, a guide wheel set 5 and logging instruments, wherein the logging instruments comprise a power pup joint 7, a storage pup joint 8 and a logging pup joint 9, the logging instruments are connected with the cable winch 1 through logging cables 6, the logging cables 6 extend downwards after extending from the cable winch 1 and passing through the steering of the guide wheel set 5, and the lifting of the logging instruments is realized through the forward/reverse operation of the cable winch 1;
the power nipple 7 is used for supplying power to the storage nipple 8 and the logging nipple 9, the logging unit in the logging nipple 9 is used for measuring the geological state in the well of the offshore drilling platform to form in-well data, the storage unit in the storage nipple 8 can be connected with the storage module of the storage nipple 8 through the same communication line, and the in-well data acquired by the logging nipple 9 are stored by the storage nipple 8;
the cable winch 1 is connected with the speed change mechanism 2 through the speed change mechanism 2 and the outer rotor permanent magnet synchronous motor 3, and the output end of the outer rotor permanent magnet synchronous motor 3 is connected with the speed change mechanism 2, and the speed change mechanism 2 drives the cable winch 1 after transmission speed change;
the cable winch 1 comprises a cable drum 11, a tight cable assembly 12, a tension detection assembly 13 and a cable arranging mechanism 4, wherein the tight cable assembly 12 is arranged on one side of the cable drum 11, after the logging cable 6 is wound on the cable drum 11, the logging cable 6 is tightly pressed on the cable drum 11 through the tight cable assembly 12, and the contact area between the tight cable assembly 12 and the logging cable 6 on the cable drum 11 can be increased along with the increase of the winding amount of the logging cable 6 on the cable drum 11;
the tensioning detection assembly 13 is arranged at a position between a rope outlet point of the logging cable 6 on the cable drum 11 and the cable arranging mechanism 4, and can detect the tensioning state of the logging cable 6 and simultaneously increase the winding angle of the logging cable 6 around the cable drum 11.
Further, the tight cable assembly 12, the movable supporting frame 121, the cable guide roller 122, the translational driving assembly and the link arm set;
the side surface of the movable supporting frame 121 is in a C-shaped structure, two ends of the C-shaped structure can be close to the positions near the upper side and the lower side of the cable drum 11 respectively, and an accommodating space in the middle of the C-shaped structure can accommodate a circumferential section of a part of the cable drum 11;
two groups of connecting rod arm groups are arranged at two ends of the movable supporting frame 121, two ends of the cable guide roller 122 are rotatably connected on corresponding hinge shafts of the connecting rod arm groups, and the cable guide roller 122 is provided with a plurality of cable guide rollers and is parallel to the circumferential side surface of the cable drum 11;
the lower end of the movable supporting frame 121 is connected with two groups of translation driving assemblies, and the movable supporting frame 121 is driven by the translation driving assemblies to approach and depart from the cable drum 11.
Further, the translation driving assembly comprises a nut slider 123, a transmission screw 124, a sliding guide rail 125 and a cable pressing motor 126;
the link arm set includes a first link arm 127, a second link arm 128, a third link arm 129, and a fourth link arm 120;
the nut sliding block 123 is fixedly connected with the lower end of the movable supporting frame 121, the nut sliding block 123 is slidably supported on the sliding guide rail 125, the nut sliding block 123 is in threaded connection with the driving screw 124, the cable pressing motor 126 drives the driving screw 124 to rotate, and the movable supporting frame 121 is controlled to be gradually far away from the cable drum along with the gradual winding of the logging cable 6 on the cable drum 11 so as to adjust the gap between the cable pressing guide roller 122 and the cable drum, so that the logging cable 6 is tightly wound on the cable drum 11 layer by layer;
the head and tail ends of the first link arm 127, the second link arm 128, the third link arm 129 and the fourth link arm 120 are rotatably connected through hinge shafts in sequence, the head end of the first link arm 127 and the tail end of the fourth link arm 120 are rotatably connected to the upper side and the lower side of the movable supporting frame 121 through hinge shafts, and the hinge shafts are rotatably provided with cable pressing guide rollers 122;
when the logging cable 6 is wound on the cable drum 11 for less than 10 layers, the cable guide rollers 122 positioned in the middle of the connecting rod arm set are abutted against the logging cable 6, and the cable guide rollers 122 positioned at the two ends of the connecting rod arm set cannot contact the logging cable 6;
when the logging cable 6 is wound on the cable drum 11 for more than 10 layers, the cable pressing guide rollers 122 at two ends of the connecting rod arm set are abutted against the logging cable 6, so that the plurality of cable pressing guide rollers 122 on the connecting rod arm set are abutted against the logging cable 6, and the logging cable 6 is tightly wound on the cable drum 11.
Further, the cable arranging mechanism 4 comprises a cable arranging motor 41, a cable arranging sliding seat 42, a cable limiting block 43, a cable arranging screw 44 and a guide rod 45;
the two ends of the cable-arranging screw 44 are provided with guide rods 45 in parallel, the cable-arranging sliding seat 42 is in threaded connection with the cable-arranging screw 44, the guide rods 45 realize sliding guide on the cable-arranging sliding seat 42, and the output end of the cable-arranging motor 41 is in transmission connection with the cable-arranging screw 44;
a cable limiting block 43 is arranged on the cable arranging slide seat 42, a limiting hole is formed in the cable limiting block 43, and the logging cable 6 passes through the limiting hole;
the cable arranging mechanism 4 is arranged between a rope outlet point of the logging cable 6 on the cable drum 11 and the guide wheel set 5.
Further, the tension detecting assembly 13 includes a cable contact roller 131, a torsion swing arm 132, a supporting box 133, a torsion shaft 134, a spring torsion arm 135, a first spring seat 136, a second spring seat 137, a second spring 138, a first spring 139, a trigger lever 140, a trigger pin 141, a trigger 142, and a control transmitter 143;
the two ends of the cable contact roller 131 are rotatably arranged at one end of the torsion swing arm 132, the other end of the torsion swing arm 132 is provided with a torsion rotating shaft 134 capable of synchronously rotating, the torsion rotating shaft 134 is rotatably supported and arranged in the supporting box body 133, and a spring torsion arm 135 capable of synchronously rotating is arranged on the torsion rotating shaft 134 and positioned in the supporting box body 133;
one end of the spring torsion arm 135 is connected with a first spring 139, the other end of the first spring 139 is connected with a first spring seat 136, the other end of the spring torsion arm 135 is connected with a second spring 138, the other end of the second spring 138 is connected with a second spring seat 137, and the first spring seat 136 and the second spring seat 137 are fixedly arranged in the supporting box body 133;
the first spring 139 applies a first pre-tightening force to the spring torsion arm 135, the second spring 138 applies a second pre-tightening force to the spring torsion arm 135, and the first pre-tightening force and the second pre-tightening force enable the torsion shaft 134 to generate a movement trend towards the same direction, so that the cable contact roller 131 is abutted to the lower side of the logging cable 6.
Further, the torsion shaft 134 is further provided with a trigger lever 140, a trigger pin 141 is disposed at a corresponding position on a rotation path of the trigger lever 140, the trigger pin 141 is disposed on a trigger 142, and the trigger 142 is electrically connected with the control transmitter 143;
the movement trend of the torsion rotating shaft 134 causes the trigger lever 140 to move towards the trigger pin 141, and when the logging cable 6 is in a tensioned state, a cable force is applied to the cable contact roller 131, the cable force causes the movement direction of the torsion rotating shaft 134 to be opposite to the movement direction of the torsion rotating shaft 134 caused by the first spring 139 and the second spring 138, and then when the logging cable 6 is in a loose state, the trigger lever 140 toggles the trigger pin 141, so that the trigger 142 generates an electric signal, and the electric signal is sent to a control system of the cable winch 1 through the control transmitter 143;
the first spring 139 and the second spring 138 enable the movement trend generated by the torsion rotating shaft 134 to enable the cable contact roller 131 to act on the logging cable 6, and enable the rope-out position of the logging cable 6 on the cable drum 11 to be changed, so that the wrapping angle of the logging cable 6 on the cable drum 11 is increased.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a logging device of offshore drilling platform, includes cable winch (1), cable arrangement mechanism (4), direction wheelset (5) and logging instrument, its characterized in that:
the logging instrument comprises a power nipple (7), a storage nipple (8) and a logging nipple (9), the logging instrument is connected with a cable winch (1) through a logging cable (6), the logging cable (6) extends out of the cable winch (1) and then downwards extends after being turned by a guide wheel set (5), and the lifting of the logging instrument is realized through the forward/reverse operation of the cable winch (1);
the power supply nipple (7) is used for supplying power to the storage nipple (8) and the logging nipple (9), a logging unit in the logging nipple (9) is used for measuring the geological state in the well of the offshore drilling platform to form in-well data, a storage unit in the storage nipple (8) can be connected with a storage module of the storage nipple (8) through the same communication line, and the in-well data acquired by the logging nipple (9) are stored by the storage nipple (8);
the cable winch (1) is connected with the speed change mechanism (2) through the speed change mechanism (2) and the outer rotor permanent magnet synchronous motor (3), and the output end of the outer rotor permanent magnet synchronous motor (3) is connected with the speed change mechanism (2), and the speed change mechanism (2) drives the cable winch (1) after transmission speed change;
the cable winch (1) comprises a cable drum (11), a tight cable pressing assembly (12), a tension detection assembly (13) and a cable arranging mechanism (4), wherein the tight cable pressing assembly (12) is arranged on one side of the cable drum (11), after the logging cable (6) is wound on the cable drum (11), the logging cable (6) is pressed on the cable drum (11) through the tight cable pressing assembly (12), and the contact area between the tight cable pressing assembly (12) and the logging cable (6) on the cable drum (11) can be increased along with the increase of the winding amount of the logging cable (6) on the cable drum (11);
the tensioning detection assembly (13) is arranged at a position between a rope outlet point of the logging cable (6) on the cable drum (11) and the cable arranging mechanism (4), so that the tensioning state of the logging cable (6) can be detected, and meanwhile the winding angle of the logging cable (6) wound on the cable drum (11) can be increased.
2. The logging device of an offshore drilling rig according to claim 1, wherein:
the device comprises a tight cable pressing assembly (12), a movable supporting frame (121), a cable pressing guide roller (122), a translation driving assembly and a connecting rod arm set;
the side face of the movable supporting frame (121) is of a C-shaped structure, two ends of the C-shaped structure can be close to the positions near the upper side and the lower side of the cable drum (11) respectively, and an accommodating space in the middle of the C-shaped structure can accommodate the circumferential section of the part of the cable drum (11);
two ends of the movable supporting frame (121) are provided with two groups of connecting rod arm groups, two ends of the cable pressing guide roller (122) are rotatably connected on corresponding hinge shafts of the connecting rod arm groups, and the cable pressing guide roller (122) is provided with a plurality of connecting rod arm groups and is parallel to the circumferential side surface of the cable drum (11);
the lower end of the movable supporting frame (121) is connected with two groups of translation driving assemblies, and the movable supporting frame (121) is driven to be close to and far away from the cable drum (11) through the translation driving assemblies.
3. The logging device of an offshore drilling rig according to claim 2, wherein:
the translation driving assembly comprises a nut sliding block (123), a transmission screw (124), a sliding guide rail (125) and a cable pressing motor (126);
the link arm set includes a first link arm (127), a second link arm (128), a third link arm (129), and a fourth link arm (120);
the nut sliding block (123) is fixedly connected with the lower end of the movable supporting frame (121), the nut sliding block (123) is slidably supported on the sliding guide rail (125), the nut sliding block (123) is in threaded connection with the transmission screw (124), the cable pressing motor (126) drives the transmission screw (124) to rotate, and the movable supporting frame (121) is controlled to be gradually far away from the cable drum along with the gradual winding of the logging cable (6) on the cable drum (11) so as to adjust the gap between the cable pressing guide roller (122) and the cable drum, so that the logging cable (6) is tightly wound on the cable drum (11) layer by layer;
the head end of the first connecting rod arm (127) and the tail end of the fourth connecting rod arm (120) are rotatably connected with the upper side and the lower side of the movable supporting frame (121) through hinge shafts, and cable pressing guide rollers (122) are rotatably arranged on the hinge shafts;
when the logging cable (6) is wound on the cable drum (11) for less than 10 layers, the cable guide rollers (122) positioned in the middle of the connecting rod arm set are abutted against the logging cable (6), and the cable guide rollers (122) positioned at the two ends of the connecting rod arm set cannot contact the logging cable (6);
when the logging cable (6) is wound on the cable drum (11) to be more than 10 layers, the cable pressing guide rollers (122) at two ends of the connecting rod arm set are abutted against the logging cable (6), so that the plurality of cable pressing guide rollers (122) on the connecting rod arm set are abutted against the logging cable (6), and the logging cable (6) is tightly wound on the cable drum (11).
4. A logging device of an offshore drilling rig according to claim 3, wherein:
the cable arranging mechanism (4) comprises a cable arranging motor (41), a cable arranging sliding seat (42), a cable limiting block (43), a cable arranging screw rod (44) and a guide rod (45);
the two ends of the cable arranging screw rod (44) are parallel and provided with guide rods (45), the cable arranging slide seat (42) is in threaded connection with the cable arranging screw rod (44), the guide rods (45) realize sliding guide on the cable arranging slide seat (42), and the output end of the cable arranging motor (41) is in transmission connection with the cable arranging screw rod (44);
a cable limiting block (43) is arranged on the cable arranging sliding seat (42), a limiting hole is formed in the cable limiting block (43), and the logging cable (6) passes through the limiting hole;
the cable arranging mechanism (4) is arranged between a rope outlet point of the logging cable (6) on the cable drum (11) and the guide wheel set (5).
5. The logging device of an offshore drilling rig of claim 4, wherein:
the tension detection assembly (13) comprises a cable contact roller (131), a torsion swing arm (132), a supporting box body (133), a torsion rotating shaft (134), a spring torsion arm (135), a first spring seat (136), a second spring seat (137), a second spring (138), a first spring (139), a trigger rod (140), a trigger pin (141), a trigger (142) and a control transmitter (143);
the two ends of the cable contact roller (131) are rotatably arranged at one end of the torsion swing arm (132), the other end of the torsion swing arm (132) is provided with a torsion rotating shaft (134) capable of synchronously rotating, the torsion rotating shaft (134) is rotatably supported and arranged in the supporting box body (133), and a spring torsion arm (135) capable of synchronously rotating is arranged on the torsion rotating shaft (134) and positioned in the supporting box body (133);
one end of the spring torsion arm (135) is connected with a first spring (139), the other end of the first spring (139) is connected with a first spring seat (136), the other end of the spring torsion arm (135) is connected with a second spring (138), the other end of the second spring (138) is connected with a second spring seat (137), and the first spring seat (136) and the second spring seat (137) are fixedly arranged in the supporting box body (133);
the first spring (139) applies a first pretightening force to the spring torsion arm (135), the second spring (138) applies a second pretightening force to the spring torsion arm (135), and the first pretightening force and the second pretightening force enable the torsion rotating shaft (134) to generate a movement trend towards the same direction, so that the cable contact roller (131) is abutted to the lower side of the logging cable (6).
6. The logging device of an offshore drilling rig of claim 5, wherein:
the torsion rotating shaft (134) is also provided with a trigger rod (140), a trigger pin (141) is arranged at a corresponding position on a rotating path of the trigger rod (140), the trigger pin (141) is arranged on a trigger (142), and the trigger (142) is electrically connected with the control transmitter (143);
the movement trend of the torsion rotating shaft (134) causes the trigger rod (140) to move towards the trigger pin (141), a cable acting force is applied to the cable contact roller (131) when the logging cable (6) is in a tensioning state, the cable acting force causes the movement direction of the torsion rotating shaft (134) to be opposite to the movement direction of the torsion rotating shaft (134) caused by the first spring (139) and the second spring (138), and then when the logging cable (6) is in a loosening state, the trigger rod (140) dials the trigger pin (141) so that the trigger (142) generates an electric signal, and the electric signal is transmitted to a control system of the cable winch (1) through a control transmitter (143);
the first spring (139) and the second spring (138) enable the movement trend generated by the torsion rotating shaft (134) to enable the cable contact roller (131) to act on the logging cable (6) and change the rope outlet position of the logging cable (6) on the cable drum (11), so that the wrapping angle of the logging cable (6) on the cable drum (11) is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310244188.3A CN116081408A (en) | 2023-03-15 | 2023-03-15 | Logging device of offshore drilling platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310244188.3A CN116081408A (en) | 2023-03-15 | 2023-03-15 | Logging device of offshore drilling platform |
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| Publication Number | Publication Date |
|---|---|
| CN116081408A true CN116081408A (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310244188.3A Pending CN116081408A (en) | 2023-03-15 | 2023-03-15 | Logging device of offshore drilling platform |
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| Country | Link |
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| CN (1) | CN116081408A (en) |
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