CN105041251A - Hydraulic control natural gas hydrate hole bottom frozen rope core drill and coring method - Google Patents
Hydraulic control natural gas hydrate hole bottom frozen rope core drill and coring method Download PDFInfo
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- CN105041251A CN105041251A CN201510401880.8A CN201510401880A CN105041251A CN 105041251 A CN105041251 A CN 105041251A CN 201510401880 A CN201510401880 A CN 201510401880A CN 105041251 A CN105041251 A CN 105041251A
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Abstract
The invention discloses a hydraulic control natural gas hydrate hole bottom frozen rope core drill and a coring method, which are particularly suitable for drilling and coring of natural gas hydrates of deep sea and permafrost lands. The hydraulic control natural gas hydrate hole bottom frozen rope core drill uses dry ice as a cold source, uses ethyl alcohol as cooling catalyst and secondary refrigerant, and can achieve rapid freezing of natural gas hydrate rock cores. The hydraulic control natural gas hydrate hole bottom frozen rope core drill achieves to rapidly core without lifting a drill by combining rope coring and hole bottom freezing. The hydraulic control natural gas hydrate hole bottom frozen rope core drill drives a control valve machine to achieve the process that the cold source is injected into a refrigeration mechanism by adopting drilling fluid column pressure, and has high feasibility. An inner pipe assembly does not rotate when drilling, prevents hydrate rock cores from being damaged because of mechanical force which is produced by a drill in a large extent, thereby more effectively improving recovery rate of rock cores, integrity and representative, and can rapidly obtain the rock cores on the ground by adopting a split core barrel mode to rapidly sample on the ground.
Description
Technical field
The present invention relates to a kind of gas hydrate hole-bottom frozen cord coring drill and coring method, the Gas Hydrate Drilling being particularly useful for deep-sea and land permafrost haorizon is cored.
Background technology
Along with the fast development of economy, the consumption of the energy is also growing, the conventional energy resources such as oil, coal, natural gas consume in a large number, from its remaining reserves, conventional energy resource cannot continue long term support modern industry, and the stock number of gas hydrates is extremely abundant, and produces carbon dioxide and water after its burning, be a kind of clean energy resource, therefore gas hydrates are regarded as following main energy sources.Gas hydrates when temperature or pressure conditions change exceed equilibrium conditions, will cause gas hydrate dissociation under being formed and compose and there is the environment of high pressure low temperature.How could obtain more Hi-Fi gas hydrates sample, be the problem of domestic and international driller author's facing.Current gas hydrate fidelity sampler both domestic and external is primarily of two kinds of mentalities of designing: one is heat-insulation pressure keeping sampler at the bottom of hole, and one is hole-bottom frozen sampler.
Heat-insulation pressure keeping sampler cuts out bottom basket by ball valve or flap valve to make hydrate core be in the pressurize core chamber of sealing, pressure compensator controlled pressure is utilized to make rock core keep initial pressure, and realize passive type insulation by heat insulating material, carry out freezen protective again after mentioning earth's surface.This pressurize mode is very high to ball valve or the intensity of flap valve and the requirement of sealing, if the sealing of ball valve or flap valve slightly declines, will cause coring unsuccessfully.The thinking of hole-bottom frozen sampler terminates when creeping into round trip, after hydrate rock core is full of basket, flushing liquor pressure is utilized refrigerant to be pressed into the freezing inside cavity of basket environmental seal, refrigerant and hydrate rock core are by copper basket generation interchange of heat, and what realize hydrate rock core is freezing.According to gas hydrates temperature and pressure characteristic curve, its decomposition pressure reduces along with the reduction of temperature.
Existing gas hydrate hole-bottom frozen core drill utilizes flushing liquor pressure or gravity refrigerant to be injected into the freezing inside cavity of the dress of ring around core barrel sealing, and it is freezing that refrigerant and hydrate rock core realize hydrate core by interchange of heat.The method feasibility that this low-temperature receiver injects is poor, and utilizes flushing of hydraulic masterpiece low-temperature receiver to be injected into around basket for power by the frame for movement changing drilling tool, and to carry out freezing to rock core be difficult to realize, and reliability cannot ensure.
Summary of the invention
Object of the present invention is exactly for above-mentioned the deficiencies in the prior art, provides the gas hydrate hole-bottom frozen cord coring drill that a kind of structure is simple, action easily realizes, reliability is high, refrigerating effect is good.
The present invention can adopt different low-temperature receivers to realize gas hydrate hole-bottom frozen sampling according to different field demands.Adopt and play the control valve that is connected of mechanism for card and injects process around basket to control low-temperature receiver, by the temperature of low temperature cold source reduction hydrate rock core, and then the decomposition of suppression gas hydrates.
Gas hydrate hole-bottom frozen double elastic-clip cord coring drill of the present invention is made up of inner tube assembly and outer pipe assembly two large divisions, and wherein inner tube assembly comprises: salvaging mechanism, bullet card detent mechanism, hitch, movable bullet mechanism for card, single action mechanism, governor motion, low-temperature receiver storing mechanism and hole-bottom frozen mechanism.
Salvaging mechanism forms by dragging for spearhead, the first resilient key and the first bullet card recovery tube, drags for spearhead and is connected by the first resilient key with the first bullet card recovery tube; Under fisher in hand-hole after with drag for spearhead and be connected, realized process drilling tool inner tube assembly put into hole He reclaims by the connection of fisher and salvaging mechanism; Drive core barrel to move up when mentioning salvaging mechanism by fisher simultaneously, drag for spearhead and card recovery tube of moving can be with to move up, thus realize the process of wire line coring.
Bullet card detent mechanism is by playing block head, the first resilient key, the first bullet card recovery tube, the first bullet card holder, the second resilient key, the first torsion spring, the first bullet card and the 3rd resilient key.It is hinged by the first resilient key that first bullet card recovery tube and first plays card holder, first resilient key and first plays the connection of card holder for being dynamically connected, for being fixedly connected with between first resilient key with the first bullet card recovery tube, the first bullet card recovery tube can move fixing distance at self gravitation and the downward vertical direction of fisher pulling force effect.First bullet card is that two panels forms rotating connection by the second resilient key, first torsion spring keeps the first bullet to be stuck in the first bullet card holder keeping opening, first bullet card recovery tube and first is played card holder and is formed a fixed connection by the 3rd resilient key, two panels first bullet card is stuck in and plays on block head, to ensure that in drilling process inner tube assembly will make inner tube assembly move up because of top power on when creeping into and cause " flying pipe " accident.
Hitch plays card holder, interior catcher, hanging ring, seat ring and the second bullet card recovery tube by first and forms.Interior catcher and first plays card holder and is threaded connection, interior catcher is connected with hanging ring by screw thread, interior catcher has equally distributed eight inclined holes, lay respectively at the position that hanging ring upper and lower is relative, when after hanging ring and seat ring contact, originally blocked from the slurry channel of Clearance Flow between inner tube assembly and outer tube, mud is entered by the inclined hole on interior catcher top, has flowed out mud circulation from the inclined hole of interior catcher bottom.Hanging ring and the connected mode of seat ring are that contact is connected, this connected mode makes inner tube assembly overcome self gravitation to be suspended in outer pipe assembly, make between clip spring seat and drill bit, to keep 2-4 millimeter gap, in case stop loss bad clip spring seat and drill bit, and ensure that basket can not rotate the water flowing performance with basket because of with bit contact.
The movable mechanism for card that plays is made up of the second bullet card recovery tube, the second bullet card holder, the second torsion spring, the second bullet card, the 4th resilient key, the first spring, control valve, top chock and the first sealing ring.Second bullet card recovery tube is connected with interior catcher by screw thread, and second plays card holder is positioned at the second bullet card recovery tube inside and can moves up and down.Second bullet card is that two panels forms rotating connection by the 4th resilient key, and the second torsion spring keeps the second bullet to be stuck in the second bullet card holder keeping opening.First spring top and second plays card holder and is connected and provides upper top power for it, and bottom is connected with top chock.Control valve and second plays card holder and is threaded connection.In drilling process, the second bullet card keeps open configuration, after creeping into end, on carry drilling tool, inner tube assembly drives the second bullet card up, second bullet card is stuck in seat ring bottom, now the second bullet card stops up, it is descending relative to inner tube assembly that inner tube assembly continues the up second bullet cassette tape brake control valve that causes, alcohol in alcohol chamber is pressed in dry ice chamber by control valve, entering after mixing with dry ice in refrigerator structure carries out freezing to rock core, thus realize the injection process of low-temperature receiver, the effect of the first sealing ring hermetic seal pressurize in the process.
Single action mechanism is made up of top chock, the first single action bearing, step, oil nozzle and the second single action bearing.Second bullet card recovery tube and top chock are threaded connection, clutch shaft bearing top contacts with top chock, and rotate with top chock, clutch shaft bearing bottom contacts with step and keeps motionless, when core blocks in core barrel, clutch shaft bearing bears upper top power as consumable accessory, second bearing top contacts with step, second bearing bottom contacts with top chock, second bearing provides top power that step is not moved down, oil nozzle and step are threaded connection, creep at every turn and by the osculum on oil nozzle, lubrication oil is added in the gap of top chock and step before starting, lubrication oil can play lubrication to the clutch shaft bearing rotated and the second bearing, the effect of heat radiation and waterproof.Clutch shaft bearing and the second bearing achieve the single action function of basket, low-temperature receiver storing mechanism and hole-bottom frozen mechanism, ensure that the hydrate rock core in drilling process in basket can not be disturbed.
Governor motion top chock, the second spring, baffle ring, loosen pad, round nut and tube connector.Second spring top and the second bearing touch also provide top power to enable the second bearing keep step motionless, second spring bottom and shelves loop contacts, shelves ring contacts with top chock, check washer top is connected with shelves ring, second spring bottom is connected with round nut, round nut provides upper top power for the second spring, the mechanism on single action mechanism top and the mechanism of bottom is coupled together; Top chock is connected with tube connector by screw thread; When inner tube assembly is put in hole, hanging ring is seated on seat ring, and the mechanism of inner tube assembly bottom can move down due to self gravitation, and the first spring can play cushioning effect; When the disconnected rock core of card, jump ring drives clip spring seat to move down compression second spring, and the power pulling off rock core with on the step in drill bit, and then is delivered on outer tube by clip spring seat seat, ensures that interior pipe does not stress in whole sampling process.
Low-temperature receiver storing mechanism forms by catcher, control valve ball, control valve seat, delivery valve seat, the 3rd spring, exhaust valve ball, the 4th spring, dry ice chamber insulation layer, the second sealing ring and rock core chamber under catcher, alcohol cavity pipe, alcohol chamber on alcohol chamber are taken over.Alcohol chamber is taken over and is connected with alcohol cavity pipe by screw thread, take under alcohol cavity pipe and alcohol chamber and be threaded connection, alcohol chamber is taken over, catcher common composition alcohol stores chamber under alcohol cavity pipe and alcohol chamber.Control valve ball top to contact with under alcohol chamber, bottom is the 3rd spring; 3rd spring top contacts with control valve ball and takes under being pressed on alcohol chamber by certain pretightning force, and lower seat is in control valve seat; Take under control valve seat and alcohol chamber and be threaded connection, take over, control valve ball, control valve seat and have the 3rd spring composition one way valve of certain pretightning force under alcohol chamber, in drilling process, alcohol flow channel on catcher under alcohol chamber blocks by one way valve, guarantees that alcohol can not flow out in drilling process.When the pressure of inside, alcohol chamber is elevated to certain value, fluid pressure makes one-way valve opens, and alcohol flows out.Delivery valve seat is connected with taking under alcohol chamber by screw thread, 4th spring base is in delivery valve seat, and exhaust valve ball to be withstood under alcohol chamber on catcher by pretightning force, catcher composition outlet valve under delivery valve seat, exhaust valve ball, the 4th spring and alcohol chamber, backed down by outlet valve when the gas pressure in low-temperature receiver chamber raises, gas is discharged.Take under alcohol chamber and rock core chamber is taken over and be threaded connection, under low-temperature receiver chamber insulation layer is positioned at alcohol chamber, catcher is inner, and insulation layer has very little coefficient of thermal conductivity and ensures that " cold " of low-temperature receiver in storing process can not scatter and disappear.
Hole-bottom frozen mechanism is made up of catcher, non-return valve ball, non-return valve seat, freezing cavity pipe, freezing chamber insulation layer, basket, insulating pad, jump ring and clip spring seat on the second sealing ring, rock core chamber.On rock core chamber, catcher and freezing cavity pipe are threaded connection, basket is connected with rock core chamber is taken over by screw thread, annular gap between freezing cavity pipe and basket is freezing chamber, after creeping into end, low-temperature receiver is injected in freezing chamber, heat exchange is carried out by basket between low-temperature receiver and hydrate rock core, thus chilled water compound rock core, the inwall of freezing cavity pipe is enclosed with freezing chamber insulation layer, ensures that " cold " of low-temperature receiver is not wasted in refrigerating process.On rock core chamber, catcher and non-return valve seat are threaded connection, non-return valve ball is positioned at non-return valve seat top, catcher, non-return valve seat and non-return valve ball composition check (non-return) valve on rock core chamber, the process in basket is entered at rock core, mud in basket backs down on check (non-return) valve ball warp rock core chamber and takes over inner relief port outflow, and check (non-return) valve ensures that mud can not flow back in basket simultaneously.Clip spring seat and freezing cavity pipe are threaded connection, clip spring seat in clip spring seat, after creeping into end, on carry inner tube assembly, jump ring is owing to being about to rock core locking under the frictional force effect of self gravitation and rock core, rock core card breaks by clip spring seat seat on the step of drill bit internal, realizes the recovery of rock core.
Outer pipe assembly forms by playing block head, the first outer tube, the first reamer, the second outer tube, the 3rd outer tube, the second reamer and drill bit, bullet block head and the first outer tube are threaded connection, first outer tube is connected with the first reamer by screw thread, second outer tube is connected with the 3rd outer tube by screw thread, 3rd outer tube and the second reamer are threaded connection, and the second reamer is connected with drill bit by screw thread.
Gas hydrate hole-bottom frozen double elastic-clip wire line coring method, comprises the following steps:
A, on earth's surface to by alcohol chamber is taken over, under alcohol cavity pipe and alcohol chamber, catcher forms in alcohol chamber and fills alcohol; Cold needed for different hole depth is taken over and is taken under rock core chamber in the dry ice chamber of composition and puts into suitable dry ice under alcohol chamber, is assembled by inner tube assembly complete.Use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole;
B, round trip terminate, and rock core is full of basket, termination of pumping, drop into fisher and carry on inner tube assembly;
C, on carry in process, the second bullet card is up, is stuck on seat ring, second bullet card stop up; Inner tube assembly continues to be about in alcohol press-in dry ice chamber under upper enforcement second plays cassette tape brake control valve simultaneously;
D, alcohol and dry ice enter in refrigerator structure be mixed to form low temperature alcohol in dry ice chamber after and carry out freezing to hydrate rock core.
After e, freezing 10-20 minute, inner tube assembly is proposed in hole;
F, core sample nitrogen storage tank or high-pressure bottle to be preserved.
G or adopt the low-temperature receiver of mixture as chilled water compound rock core of dry ice and alcohol, when earth's surface, a certain amount of dry ice is put in alcohol the mixture being mixed to form alcohol and dry ice, in being kept at by alcohol chamber is taken over through the mixture of alcohol and dry ice disease, taking over the cavity that forms under alcohol cavity pipe and alcohol chamber, use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole; Be provided with insulation layer in cavity, ensure that the dry ice in mixture can not decompose because of heat absorption in drilling process.This process be also applicable to adopt liquid nitrogen etc. can the fluid of Quick-gasifying heat absorption as low-temperature receiver time.Other processes are the same.
Beneficial effect of the present invention:
The present invention adopts simple freezing sampling, use and adopt dry ice to be low-temperature receiver, alcohol for helping cold catalyzer and refrigerating medium, or adopts alcohol or adopts the mixture of alcohol and dry ice as low-temperature receiver, also can adopt liquid nitrogen etc. can gasify rapidly heat absorption can phase change fluid as low-temperature receiver; Can cross according to scene need change low-temperature receiver at any time and realize snap frozen to hydrate rock core, freezing effect is well; Wire line coring is combined with hole-bottom frozen, realizes not carrying brill and core fast; Employing activity bullet mechanism for card realizes the process that low-temperature receiver injects freezing mechanism, has higher feasibility.When creeping into, inner tube assembly does not turn round, and thus avoids largely because the mechanical force of drilling tool revolution generation is to the destruction of hydrate rock core, more effectively improves core recovery percentage, integrity degree and representativeness.
Accompanying drawing explanation
Fig. 1 is that the present invention adopts dry ice to be low-temperature receiver, and alcohol is the overall structure schematic diagram helping cold catalyzer and refrigerating medium.
Fig. 2 is upper portion schematic diagram of the present invention.
Fig. 3 is stage casing of the present invention partial schematic diagram.
Fig. 4 is hypomere partial schematic diagram of the present invention.
Fig. 5 be the present invention adopt the mixture of alcohol and dry ice as low-temperature receiver or liquid nitrogen etc. can gasify rapidly heat absorption can phase change fluid as the overall structure schematic diagram of low-temperature receiver.
Wherein: 1. play block head, 2. drag for spearhead, 3. the first resilient key, 4. the first bullet card recovery tube, 5. first play card holder, 6. the second resilient key, 7. the first torsion spring, 8. the first bullet card, 9. the 3rd resilient key, 10. the first outer tube, catcher in 11., 12. hanging rings, 13. seat rings, 14. second bullet card recovery tubes, 15. first reamers, 16. second play card holder, 17. second torsion springs, 18. second bullet cards, 19. the 4th resilient keys, 20. first springs, 21. control valves, 22. second outer tubes, 23. top chocks, 24. clutch shaft bearings, 25. steps, 26. oil nozzles, 27. second bearings, 28. second springs, 29. baffle rings, 30. check washers, 31. round nuts, 32. tube connectors, 33. alcohol chambeies are taken over, 34. first sealing rings, 35. alcohol cavity pipes, take under 36. alcohol chambeies, 37. control valve ball, 38. control valve seats, 39. delivery valve seats, 40. the 3rd springs, 41. exhaust valve balls, 42. the 4th springs, 43. low-temperature receiver chamber insulation layers, 44. second sealing rings, 45. rock core chambeies are taken over, 46. the 3rd outer tubes, 47. non-return valve balls, 48. non-return valve seats, 49. freezing cavity pipes, 50. freezing chamber insulation layers, 51. baskets, 52. second reamers, 53. insulating pads, 54. jump rings, 55. clip spring seats, 56. drill bits.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, the present embodiment adopts dry ice to be low-temperature receiver, and alcohol is for helping cold catalyzer and refrigerating medium; Employing dry ice is low-temperature receiver, alcohol is for helping cold catalyzer and refrigerating medium, embodiment is made up of inner tube assembly and outer pipe assembly, and inner tube assembly includes salvaging mechanism, bullet card detent mechanism, hitch, movable bullet mechanism for card, single action mechanism, governor motion, low-temperature receiver storing mechanism and hole-bottom frozen mechanism;
Salvaging mechanism, by dragging for spearhead 2, first resilient key 3 and the first bullet card recovery tube 4 forms, is dragged for spearhead 2 and is connected by the first resilient key 3 with the first bullet card recovery tube 4; Under fisher in hand-hole after with drag for spearhead 2 and be connected, realized process drilling tool inner tube assembly put into hole He reclaims by the connection of fisher and salvaging mechanism; Drive core barrel to move up when mentioning salvaging mechanism by fisher simultaneously, drag for spearhead and card recovery tube of moving can be with to move up, thus realize the process of wire line coring;
Bullet card detent mechanism plays card holder 5, second resilient key 6, first torsion spring 7, first bullet card 8 and the 3rd resilient key 9 by playing block head 1, first resilient key 3, first bullet card recovery tube 4, first.It is hinged by the first resilient key 3 that first bullet card recovery tube 4 and first plays card holder 5, first resilient key 3 and first plays the connection of card holder 5 for being dynamically connected, for being fixedly connected with between first resilient key 3 with the first bullet card recovery tube 4, the first bullet card recovery tube 4 can move fixing distance at self gravitation and the downward vertical direction of fisher pulling force effect.First bullet card 8 forms rotating connection for two panels by the second resilient key 6, first torsion spring 7 keeps the first bullet card 8 to keep opening in the first bullet card holder 5, first bullet card recovery tube 4 and first is played card holder 5 and is formed a fixed connection by the 3rd resilient key 9, two panels first bullet card 8 is stuck in and plays on block head 1, to ensure that in drilling process inner tube assembly will make inner tube assembly move up because of top power on when creeping into and cause " flying pipe " accident;
Hitch plays card holder 5, interior catcher 11, hanging ring 12, seat ring 13 and the second bullet card recovery tube 14 by first and forms.Interior catcher 11 and first plays card holder 2 and is threaded connection, interior catcher 11 is connected with hanging ring 12 by screw thread, interior catcher 11 has equally distributed eight inclined holes, lay respectively at the position that hanging ring 12 upper and lower is relative, after hanging ring 12 contacts with seat ring 13, originally blocked from the slurry channel of Clearance Flow between inner tube assembly and outer tube, mud is entered by the inclined hole on interior catcher 11 top, has flowed out mud circulation from the inclined hole of interior catcher 11 bottom.Hanging ring 12 and the connected mode of seat ring 13 are that contact is connected, this connected mode makes inner tube assembly overcome self gravitation to be suspended in outer pipe assembly, make between clip spring seat 55 and drill bit 56, to keep 2-4 millimeter gap, in case stop loss bad clip spring seat 55 and drill bit 56, and ensure that basket 51 can not rotate the water flowing performance with basket 51 because of contacting with drill bit 56.
The movable mechanism for card that plays is made up of the second bullet card recovery tube 14, second bullet card holder 16, second torsion spring 17, second bullet card 18, the 4th resilient key 19, first spring 20, control valve 21, top chock 23 and the first sealing ring 34.Second bullet card recovery tube 14 is connected with interior catcher 11 by screw thread, and second plays card holder 16 is positioned at the second bullet card recovery tube 14 inside and can moves up and down.Second bullet card 18 forms rotating connection for two panels by the 4th resilient key 19, and the second torsion spring 17 keeps the second bullet card 18 to keep opening in the second bullet card holder 16.First spring 20 top and second plays card holder 16 and is connected and provides upper top power for it, and bottom is connected with top chock 23.Control valve 21 and second plays card holder 16 and is threaded connection.In drilling process, the second bullet card 18 keeps open configuration, after creeping into end, on carry drilling tool, inner tube assembly drives the second bullet card 18 up, second bullet card card 18 is in seat ring 13 bottom, now the second bullet card 18 stops up, inner tube assembly continues the up second bullet card 18 that causes and is with brake control valve 21 descending relative to inner tube assembly, alcohol in alcohol chamber is pressed in dry ice chamber by control valve 21, entering after mixing with dry ice in refrigerator structure carries out freezing to rock core, thus realize the injection process of low-temperature receiver, the effect of the first sealing ring 34 hermetic seal pressurize in the process;
Single action mechanism is made up of top chock 23, first single action bearing 24, step 25, oil nozzle 26 and the second single action bearing 27.Second bullet card recovery tube 14 is threaded connection with top chock 23, clutch shaft bearing 24 top contacts with top chock 23, and rotate with top chock 23, clutch shaft bearing 24 bottom contacts with step 25 and keeps motionless, when core blocks in core barrel 51, clutch shaft bearing 24 bears upper top power as consumable accessory, second bearing 27 top contacts with step 25, second bearing 27 bottom contacts with top chock 23, second bearing 27 provides top power that step 25 is not moved down, oil nozzle 26 and step 25 are threaded connection, creep at every turn and by the osculum on oil nozzle 26, lubrication oil is added in the gap of top chock 23 and step 25 before starting, lubrication oil can play lubrication to the clutch shaft bearing 24 rotated and the second bearing 27, the effect of heat radiation and waterproof.Clutch shaft bearing 24 and the second bearing 27 achieve the single action function of basket, low-temperature receiver storing mechanism and hole-bottom frozen mechanism, ensure that the hydrate rock core in drilling process in basket 51 can not be disturbed.
Governor motion top chock 23, second spring 28, baffle ring 29, loosen pad 30, round nut 31 and tube connector 32.Second spring 28 top contacts with the second bearing 27 and provides upper top power to make the second bearing 27 that step 25 can be kept motionless, second spring 28 bottom contacts with shelves ring 29, shelves ring 29 contacts with top chock 23, check washer 30 top is connected with shelves ring 29, second spring 28 bottom is connected with round nut 31, round nut 31 provides upper top power for the second spring 28, the mechanism on single action mechanism top and the mechanism of bottom is coupled together; Top chock 23 is connected with tube connector 32 by screw thread; When inner tube assembly is put in hole, hanging ring 12 is seated on seat ring 13, and the mechanism of inner tube assembly bottom can move down due to self gravitation, and the first spring 20 can play cushioning effect; When the disconnected rock core of card, jump ring 54 drives clip spring seat 55 to move down compression second spring 28, and the power pulling off rock core with on the step in drill bit 56, and then is delivered on outer tube by clip spring seat 55, and in ensureing, pipe does not stress in whole sampling process.
Low-temperature receiver storing mechanism is made up of catcher 45 on catcher 36, control valve ball 37, control valve seat 38, delivery valve seat 39, the 3rd spring 40, exhaust valve ball 41, the 4th spring 42, low-temperature receiver chamber insulation layer 43, second sealing ring 44 and rock core chamber under catcher 33, alcohol cavity pipe 35, alcohol chamber on alcohol chamber.Alcohol chamber is taken over and 33 to be connected with alcohol cavity pipe 35 by screw thread, take over 36 under alcohol cavity pipe 35 and alcohol chamber and be threaded connection, alcohol chamber is taken over 33, catcher 36 forms alcohol storage chambeies jointly under alcohol cavity pipe 35 and alcohol chamber.Control valve ball 37 top and take over 36 under alcohol chamber and contact, bottom is the 3rd spring 40; 3rd spring 40 top contacts with control valve ball 37 and takes on 36 under being pressed on alcohol chamber by certain pretightning force, and lower seat is in control valve seat 38; Take over 36 under control valve seat 38 and alcohol chamber to be threaded connection, take over 36 under alcohol chamber, control valve ball 37, control valve seat 38 and the 3rd spring 40 with certain pretightning force forms one way valve, in drilling process, the alcohol flow channel taken on 36 under alcohol chamber blocks by one way valve, guarantees that alcohol can not flow out in drilling process.When the pressure of inside, alcohol chamber is elevated to certain value, fluid pressure makes one-way valve opens, and alcohol flows out.Delivery valve seat 39 by screw thread with take over 36 under alcohol chamber and be connected, 4th 42, spring is in delivery valve seat 39, and exhaust valve ball 37 to be withstood under alcohol chamber on catcher 36 by pretightning force, catcher 36 composition outlet valve under delivery valve seat 39, exhaust valve ball 37, the 4th spring 42 and alcohol chamber, backed down by outlet valve when the gas pressure in low-temperature receiver chamber raises, gas is discharged.Take under alcohol chamber 36 with rock core chamber on take over 45 and is threaded connection, under low-temperature receiver chamber insulation layer 43 is positioned at alcohol chamber, catcher 36 is inner, and insulation layer 43 has very little " cold " of coefficient of thermal conductivity guarantee low-temperature receiver in storing process and can not scatter and disappear.
Hole-bottom frozen mechanism is made up of catcher 45, non-return valve ball 47, non-return valve seat 48, freezing cavity pipe 49, freezing chamber insulation layer 50, basket 51, insulating pad 53, jump ring 54 and clip spring seat 55 on the second sealing ring 44, rock core chamber.Rock core chamber is taken over 45 to be threaded connection with freezing cavity pipe 49, basket 51 by screw thread with rock core chamber is taken over 45 and is connected, annular gap between freezing cavity pipe 49 and basket 51 is freezing chamber, after creeping into end, low-temperature receiver is injected in freezing chamber, heat exchange is carried out by basket 51 between low-temperature receiver and hydrate rock core, thus chilled water compound rock core, the inwall of freezing cavity pipe 49 is enclosed with freezing chamber insulation layer 50, ensures that " cold " of low-temperature receiver is not wasted in refrigerating process.Rock core chamber is taken over 45 to be threaded connection with non-return valve seat 47, non-return valve ball 48 is positioned at non-return valve seat 47 top, on rock core chamber, catcher 45, non-return valve seat 48 and non-return valve ball 47 form check (non-return) valve, the process in basket 51 is entered at rock core, mud in basket 51 backs down the relief port outflow that non-return valve ball 47 takes over 45 inside on rock core chamber, and check (non-return) valve ensures that mud can not flow back in basket 51 simultaneously.Clip spring seat 55 and freezing cavity pipe 49 are threaded connection, jump ring 54 is in clip spring seat 55, after creeping into end, on carry inner tube assembly, jump ring 54 is owing to being about to rock core locking under the frictional force effect of self gravitation and rock core, rock core card breaks by clip spring seat 55 on the step of drill bit internal, realizes the recovery of rock core.
Outer pipe assembly is made up of bullet block head 1, first outer tube 10, first reamer 15, second outer tube 22, the 3rd outer tube 46, second reamer 52 and drill bit 56, bullet block head 1 and the first outer tube 10 are threaded connection, first outer tube 10 is connected with the first reamer 15 by screw thread, second outer tube 22 is connected with the 3rd outer tube 46 by screw thread, 3rd outer tube 46 and the second reamer 52 are threaded connection, and the second reamer 52 is connected with drill bit 56 by screw thread.
Gas hydrate hole-bottom frozen double elastic-clip wire line coring method, comprises the following steps:
A, on earth's surface to by alcohol chamber being taken over 33, under alcohol cavity pipe 35 and alcohol chamber, catcher 36 forms in alcohol chamber and fills alcohol; Cold needed for different hole depth take under alcohol chamber on 36 and rock core chamber take over 45 composition dry ice chambeies in put into suitable dry ice, inner tube assembly is assembled complete.Use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole;
B, creep into end, rock core is full of basket 51, termination of pumping, drops into fisher and carries on inner tube assembly;
C, on carry in process, the second bullet card 18 is up, is stuck on seat ring 13, and the second bullet card 18 stops up; The upper enforcement second bullet 18 cassette tape brake control valve of inner tube assembly continuation is simultaneously about to for 21 times in alcohol press-in dry ice chamber;
D, alcohol and dry ice enter in refrigerator structure be mixed to form low temperature alcohol in dry ice chamber after and carry out freezing to hydrate rock core.
After e, freezing 10-20 minute, inner tube assembly is proposed in hole;
F, core sample nitrogen storage tank or high-pressure bottle to be preserved.
Embodiment 2:
As shown in Figure 5, the present embodiment adopt the mixture of alcohol and dry ice as low-temperature receiver or liquid nitrogen etc. can gasify rapidly heat absorption can phase change fluid as low-temperature receiver, the present embodiment is made up of greatly inner tube assembly and outer pipe assembly two, and inner tube assembly comprises: salvaging mechanism, bullet card detent mechanism, hitch, movable bullet mechanism for card, single action mechanism, governor motion, low-temperature receiver storing mechanism and hole-bottom frozen mechanism.Wherein salvaging mechanism, bullet card detent mechanism, hitch, movable bullet mechanism for card, single action mechanism, governor motion and hole-bottom frozen mechanism are in the same manner as in Example 1.
Low-temperature receiver storing mechanism is made up of catcher 45 on catcher 36, control valve ball 37, control valve seat 38, delivery valve seat 39, the 3rd spring 40, exhaust valve ball 41, the 4th spring 42, low-temperature receiver chamber insulation layer 43, second sealing ring 44 and rock core chamber under catcher 33, alcohol cavity pipe 35, alcohol chamber on alcohol chamber.Alcohol chamber is taken over and 33 to be connected with alcohol cavity pipe 35 by screw thread, take over 36 under alcohol cavity pipe 35 and alcohol chamber and be threaded connection, alcohol chamber is taken over 33, catcher 36 forms alcohol storage chambeies jointly under alcohol cavity pipe 35 and alcohol chamber.Control valve ball 37 top and take over 36 under alcohol chamber and contact, bottom is the 3rd spring 40; 3rd spring 40 top contacts with control valve ball 37 and takes on 36 under being pressed on alcohol chamber by certain pretightning force, and lower seat is in control valve seat 38; Take over 36 under control valve seat 38 and alcohol chamber to be threaded connection, take over 36 under alcohol chamber, control valve ball 37, control valve seat 38 and the 3rd spring 40 with certain pretightning force forms one way valve, in drilling process, the alcohol flow channel taken on 36 under alcohol chamber blocks by one way valve, guarantees that alcohol can not flow out in drilling process.When the pressure of inside, alcohol chamber is elevated to certain value, fluid pressure makes one-way valve opens, and alcohol flows out.Delivery valve seat 39 by screw thread with take over 36 under alcohol chamber and be connected, 4th 42, spring is in delivery valve seat 39, and exhaust valve ball 37 to be withstood under alcohol chamber on catcher 36 by pretightning force, catcher 36 composition outlet valve under delivery valve seat 39, exhaust valve ball 37, the 4th spring 42 and alcohol chamber, backed down by outlet valve when the gas pressure in low-temperature receiver chamber raises, gas is discharged.Take under alcohol chamber 36 with rock core chamber on take over 45 and be threaded connection, it is inner that low-temperature receiver chamber insulation layer 43 is positioned at catcher 36 under alcohol cavity pipe 35 and alcohol chamber, and insulation layer 43 has very little coefficient of thermal conductivity and ensures that low-temperature receiver (what adopt the mixture of alcohol and dry ice or liquid nitrogen etc. can gasify rapidly heat absorption can phase change fluid) " cold " in storing process can not scatter and disappear.
Gas hydrate hole-bottom frozen double elastic-clip wire line coring method, comprises the following steps:
A, adopt the low-temperature receiver of mixture as chilled water compound rock core of dry ice and alcohol, when earth's surface, a certain amount of dry ice is put in alcohol the mixture being mixed to form alcohol and dry ice, mixture through alcohol and dry ice disease is kept at by taking in 36 cavitys formed under catcher 33, alcohol cavity pipe 35 and alcohol chamber on alcohol chamber, use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole; Be provided with insulation layer in cavity, ensure that the dry ice in mixture can not decompose because of heat absorption in drilling process.Use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole;
B, creep into end, rock core is full of basket 51, termination of pumping, drops into fisher and carries on inner tube assembly;
C, on carry in process, the second bullet card 18 is up, is stuck on seat ring 13, and the second bullet card 18 stops up; The upper enforcement second bullet 18 cassette tape brake control valve of inner tube assembly continuation is simultaneously about to for 21 times in alcohol press-in dry ice chamber;
D, alcohol and dry ice enter in refrigerator structure be mixed to form low temperature alcohol in dry ice chamber after and carry out freezing to hydrate rock core.
After e, freezing 10-20 minute, inner tube assembly is proposed in hole;
F, core sample nitrogen storage tank or high-pressure bottle to be preserved.
Claims (3)
1. a gas hydrate hole-bottom frozen cord coring drill, it is characterized in that: be made up of inner tube assembly and outer pipe assembly, inner tube assembly includes salvaging mechanism, bullet card detent mechanism, hitch, movable bullet mechanism for card, single action mechanism, governor motion, low-temperature receiver storing mechanism and hole-bottom frozen mechanism;
Salvaging mechanism, by dragging for spearhead 2, first resilient key 3 and the first bullet card recovery tube 4 forms, is dragged for spearhead 2 and is connected by the first resilient key 3 with the first bullet card recovery tube 4; Under fisher in hand-hole after with drag for spearhead 2 and be connected, realized process drilling tool inner tube assembly put into hole He reclaims by the connection of fisher and salvaging mechanism; Drive core barrel to move up when mentioning salvaging mechanism by fisher simultaneously, drag for spearhead and card recovery tube of moving can be with to move up, thus realize the process of wire line coring;
Bullet card detent mechanism plays card holder 5, second resilient key 6, first torsion spring 7, first bullet card 8 and the 3rd resilient key 9 by playing block head 1, first resilient key 3, first bullet card recovery tube 4, first; It is hinged by the first resilient key 3 that first bullet card recovery tube 4 and first plays card holder 5, first resilient key 3 and first plays the connection of card holder 5 for being dynamically connected, for being fixedly connected with between first resilient key 3 with the first bullet card recovery tube 4, the first bullet card recovery tube 4 can move fixing distance at self gravitation and the downward vertical direction of fisher pulling force effect; First bullet card 8 forms rotating connection for two panels by the second resilient key 6, first torsion spring 7 keeps the first bullet card 8 to keep opening in the first bullet card holder 5, first bullet card recovery tube 4 and first is played card holder 5 and is formed a fixed connection by the 3rd resilient key 9, and two panels first bullet card 8 is stuck in and plays on block head 1;
Hitch plays card holder 5, interior catcher 11, hanging ring 12, seat ring 13 and the second bullet card recovery tube 14 by first and forms; Interior catcher 11 and first plays card holder 2 and is threaded connection, interior catcher 11 is connected with hanging ring 12 by screw thread, interior catcher 11 has equally distributed eight inclined holes, lay respectively at the position that hanging ring 12 upper and lower is relative, after hanging ring 12 contacts with seat ring 13, originally blocked from the slurry channel of Clearance Flow between inner tube assembly and outer tube, mud is entered by the inclined hole on interior catcher 11 top, has flowed out mud circulation from the inclined hole of interior catcher 11 bottom; Hanging ring 12 and the connected mode of seat ring 13 are that contact is connected, this connected mode makes inner tube assembly overcome self gravitation to be suspended in outer pipe assembly, make between clip spring seat 55 and drill bit 56, to keep 2-4 millimeter gap, in case stop loss bad clip spring seat 55 and drill bit 56, and ensure that basket 51 can not rotate the water flowing performance with basket 51 because of contacting with drill bit 56;
The movable mechanism for card that plays is made up of the second bullet card recovery tube 14, second bullet card holder 16, second torsion spring 17, second bullet card 18, the 4th resilient key 19, first spring 20, control valve 21, top chock 23 and the first sealing ring 34; Second bullet card recovery tube 14 is connected with interior catcher 11 by screw thread, and second plays card holder 16 is positioned at the second bullet card recovery tube 14 inside and can moves up and down; Second bullet card 18 forms rotating connection for two panels by the 4th resilient key 19, and the second torsion spring 17 keeps the second bullet card 18 to keep opening in the second bullet card holder 16; First spring 20 top and second plays card holder 16 and is connected and provides upper top power for it, and bottom is connected with top chock 23; Control valve 21 and second plays card holder 16 and is threaded connection; In drilling process, the second bullet card 18 keeps open configuration, after creeping into end, on carry drilling tool, inner tube assembly drives the second bullet card 18 up, second bullet card card 18 is in seat ring 13 bottom, now the second bullet card 18 stops up, inner tube assembly continues the up second bullet card 18 that causes and is with brake control valve 21 descending relative to inner tube assembly, alcohol in alcohol chamber is pressed in dry ice chamber by control valve 21, entering after mixing with dry ice in refrigerator structure carries out freezing to rock core, thus realize the injection process of low-temperature receiver, the effect of the first sealing ring 34 hermetic seal pressurize in the process;
Single action mechanism is made up of top chock 23, first single action bearing 24, step 25, oil nozzle 26 and the second single action bearing 27, second bullet card recovery tube 14 is threaded connection with top chock 23, clutch shaft bearing 24 top contacts with top chock 23, and rotate with top chock 23, clutch shaft bearing 24 bottom contacts with step 25 and keeps motionless, when core blocks in core barrel 51, clutch shaft bearing 24 bears upper top power as consumable accessory, second bearing 27 top contacts with step 25, second bearing 27 bottom contacts with top chock 23, second bearing 27 provides top power that step 25 is not moved down, oil nozzle 26 and step 25 are threaded connection, creep at every turn and by the osculum on oil nozzle 26, lubrication oil is added in the gap of top chock 23 and step 25 before starting, lubrication oil can play lubrication to the clutch shaft bearing 24 rotated and the second bearing 27, the effect of heat radiation and waterproof, clutch shaft bearing 24 and the second bearing 27 achieve the single action function of basket, low-temperature receiver storing mechanism and hole-bottom frozen mechanism, ensure that the hydrate rock core in drilling process in basket 51 can not be disturbed,
Governor motion top chock 23, second spring 28, baffle ring 29, loosen pad 30, round nut 31 and tube connector 32; Second spring 28 top contacts with the second bearing 27 and provides upper top power to make the second bearing 27 that step 25 can be kept motionless, second spring 28 bottom contacts with shelves ring 29, shelves ring 29 contacts with top chock 23, check washer 30 top is connected with shelves ring 29, second spring 28 bottom is connected with round nut 31, round nut 31 provides upper top power for the second spring 28, the mechanism on single action mechanism top and the mechanism of bottom is coupled together; Top chock 23 is connected with tube connector 32 by screw thread; When inner tube assembly is put in hole, hanging ring 12 is seated on seat ring 13, and the mechanism of inner tube assembly bottom can move down due to self gravitation, and the first spring 20 can play cushioning effect; When the disconnected rock core of card, jump ring 54 drives clip spring seat 55 to move down compression second spring 28, and the power pulling off rock core with on the step in drill bit 56, and then is delivered on outer tube by clip spring seat 55, and in ensureing, pipe does not stress in whole sampling process;
Low-temperature receiver storing mechanism is made up of catcher 45 on catcher 36, control valve ball 37, control valve seat 38, delivery valve seat 39, the 3rd spring 40, exhaust valve ball 41, the 4th spring 42, low-temperature receiver chamber insulation layer 43, second sealing ring 44 and rock core chamber under catcher 33, alcohol cavity pipe 35, alcohol chamber on alcohol chamber; Alcohol chamber is taken over and 33 to be connected with alcohol cavity pipe 35 by screw thread, take over 36 under alcohol cavity pipe 35 and alcohol chamber and be threaded connection, alcohol chamber is taken over 33, catcher 36 forms alcohol storage chambeies jointly under alcohol cavity pipe 35 and alcohol chamber; Control valve ball 37 top and take over 36 under alcohol chamber and contact, bottom is the 3rd spring 40; 3rd spring 40 top contacts with control valve ball 37 and takes on 36 under being pressed on alcohol chamber by certain pretightning force, and lower seat is in control valve seat 38; Take over 36 under control valve seat 38 and alcohol chamber to be threaded connection, take over 36 under alcohol chamber, control valve ball 37, control valve seat 38 and the 3rd spring 40 with certain pretightning force forms one way valve, in drilling process, the alcohol flow channel taken on 36 under alcohol chamber blocks by one way valve, guarantees that alcohol can not flow out in drilling process; When the pressure of inside, alcohol chamber is elevated to certain value, fluid pressure makes one-way valve opens, and alcohol flows out; Delivery valve seat 39 by screw thread with take over 36 under alcohol chamber and be connected, 4th 42, spring is in delivery valve seat 39, and exhaust valve ball 37 to be withstood under alcohol chamber on catcher 36 by pretightning force, catcher 36 composition outlet valve under delivery valve seat 39, exhaust valve ball 37, the 4th spring 42 and alcohol chamber, backed down by outlet valve when the gas pressure in low-temperature receiver chamber raises, gas is discharged; Take under alcohol chamber 36 with rock core chamber on take over 45 and is threaded connection, low-temperature receiver chamber insulation layer 43 is positioned at catcher 36 inside under alcohol chamber;
Hole-bottom frozen mechanism is made up of catcher 45, non-return valve ball 47, non-return valve seat 48, freezing cavity pipe 49, freezing chamber insulation layer 50, basket 51, insulating pad 53, jump ring 54 and clip spring seat 55 on the second sealing ring 44, rock core chamber; Rock core chamber is taken over 45 to be threaded connection with freezing cavity pipe 49, basket 51 by screw thread with rock core chamber is taken over 45 and is connected, annular gap between freezing cavity pipe 49 and basket 51 is freezing chamber, after creeping into end, low-temperature receiver is injected in freezing chamber, heat exchange is carried out by basket 51 between low-temperature receiver and hydrate rock core, thus chilled water compound rock core, the inwall of freezing cavity pipe 49 is enclosed with freezing chamber insulation layer 50, ensures that " cold " of low-temperature receiver is not wasted in refrigerating process; Rock core chamber is taken over 45 to be threaded connection with non-return valve seat 47, non-return valve ball 48 is positioned at non-return valve seat 47 top, on rock core chamber, catcher 45, non-return valve seat 48 and non-return valve ball 47 form check (non-return) valve, the process in basket 51 is entered at rock core, mud in basket 51 backs down the relief port outflow that non-return valve ball 47 takes over 45 inside on rock core chamber, and check (non-return) valve ensures that mud can not flow back in basket 51 simultaneously; Clip spring seat 55 and freezing cavity pipe 49 are threaded connection, jump ring 54 is in clip spring seat 55, after creeping into end, on carry inner tube assembly, jump ring 54 is owing to being about to rock core locking under the frictional force effect of self gravitation and rock core, rock core card breaks by clip spring seat 55 on the step of drill bit internal, realizes the recovery of rock core;
Outer pipe assembly is made up of bullet block head 1, first outer tube 10, first reamer 15, second outer tube 22, the 3rd outer tube 46, second reamer 52 and drill bit 56, bullet block head 1 and the first outer tube 10 are threaded connection, first outer tube 10 is connected with the first reamer 15 by screw thread, second outer tube 22 is connected with the 3rd outer tube 46 by screw thread, 3rd outer tube 46 and the second reamer 52 are threaded connection, and the second reamer 52 is connected with drill bit 56 by screw thread.
2. a kind of gas hydrate hole-bottom frozen cord coring drill according to claim 1, is characterized in that: described low-temperature receiver storing mechanism is made up of catcher 45 on catcher 36, control valve ball 37, control valve seat 38, delivery valve seat 39, the 3rd spring 40, exhaust valve ball 41, the 4th spring 42, low-temperature receiver chamber insulation layer 43, second sealing ring 44 and rock core chamber under catcher 33, alcohol cavity pipe 35, alcohol chamber on alcohol chamber; Alcohol chamber is taken over and 33 to be connected with alcohol cavity pipe 35 by screw thread, take over 36 under alcohol cavity pipe 35 and alcohol chamber and be threaded connection, alcohol chamber is taken over 33, catcher 36 forms alcohol storage chambeies jointly under alcohol cavity pipe 35 and alcohol chamber; Control valve ball 37 top and take over 36 under alcohol chamber and contact, bottom is the 3rd spring 40; 3rd spring 40 top contacts with control valve ball 37 and takes on 36 under being pressed on alcohol chamber by certain pretightning force, and lower seat is in control valve seat 38; Take over 36 under control valve seat 38 and alcohol chamber to be threaded connection, take over 36 under alcohol chamber, control valve ball 37, control valve seat 38 and the 3rd spring 40 with certain pretightning force forms one way valve, in drilling process, the alcohol flow channel taken on 36 under alcohol chamber blocks by one way valve, guarantees that alcohol can not flow out in drilling process; When the pressure of inside, alcohol chamber is elevated to certain value, fluid pressure makes one-way valve opens, and alcohol flows out; Delivery valve seat 39 by screw thread with take over 36 under alcohol chamber and be connected, 4th 42, spring is in delivery valve seat 39, and exhaust valve ball 37 to be withstood under alcohol chamber on catcher 36 by pretightning force, catcher 36 composition outlet valve under delivery valve seat 39, exhaust valve ball 37, the 4th spring 42 and alcohol chamber, backed down by outlet valve when the gas pressure in low-temperature receiver chamber raises, gas is discharged; Take under alcohol chamber 36 with rock core chamber on take over 45 and is threaded connection, low-temperature receiver chamber insulation layer 43 is positioned at catcher 36 inside under alcohol cavity pipe 35 and alcohol chamber.
3. a gas hydrate hole-bottom frozen wire line coring coring method, the method comprises the following steps:
A, in the alcohol chambeies that the catcher 36 by alcohol chamber being taken over 33, under alcohol cavity pipe 35 and alcohol chamber forms, fill alcohol on earth's surface; Cold needed for different hole depth take under alcohol chamber on 36 and rock core chamber take over 45 composition dry ice chambeies in put into suitable dry ice, inner tube assembly is assembled complete; Use fisher or be directly sent in hole by inner tube assembly by drilling rod, inner tube assembly spuds in after arriving at the bottom of hole;
B, creep into end, rock core is full of basket 51, termination of pumping, drops into fisher and carries on inner tube assembly;
C, on carry in process, the second bullet card 18 is up, is stuck on seat ring 13, and the second bullet card 18 stops up; The upper enforcement second bullet 18 cassette tape brake control valve of inner tube assembly continuation is simultaneously about to for 21 times in alcohol press-in dry ice chamber;
D, alcohol and dry ice enter in refrigerator structure be mixed to form low temperature alcohol in dry ice chamber after and carry out freezing to hydrate rock core.
After e, freezing 10-20 minute, inner tube assembly is proposed in hole;
F, core sample nitrogen storage tank or high-pressure bottle to be preserved.
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| CN201510401880.8A CN105041251B (en) | 2015-07-10 | 2015-07-10 | Gas hydrate hole-bottom frozen double elastic-clip cord coring drill and coring method |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818323A (en) * | 2006-03-20 | 2006-08-16 | 国家海洋局第一海洋研究所 | Shallow-hole thermal-insulating and pressure-retaining driller in deep water with natural gas hydrate for taking out ocre |
| CN201372754Y (en) * | 2009-03-24 | 2009-12-30 | 武汉金地探矿机械有限公司 | Jet-type reverse rope coring drilling tool |
| CN201381816Y (en) * | 2009-03-19 | 2010-01-13 | 李纪章 | Rope core drill bit |
| CN101864916A (en) * | 2010-05-27 | 2010-10-20 | 吉林大学 | Hole bottom freezing cord coring drill and coring method thereof |
| CN201835777U (en) * | 2010-05-27 | 2011-05-18 | 吉林大学 | Hole bottom freezing rope core drill |
| RU2425952C1 (en) * | 2010-03-15 | 2011-08-10 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Device for obtaining core from hydrate-containing rocks |
| CN102943641A (en) * | 2012-12-08 | 2013-02-27 | 吉林大学 | Liquid nitrogen hole bottom frozen rope core drilling tool and core-drilling method |
| CN203430457U (en) * | 2013-09-01 | 2014-02-12 | 吉林大学 | Wire-line coring drill bit with longhole inner pipe in place alarming function and pressure detection system thereof |
| CN104481439A (en) * | 2014-12-10 | 2015-04-01 | 无锡锡钻地质装备有限公司 | Wire core drilling tool |
| CN104499976A (en) * | 2014-12-13 | 2015-04-08 | 吉林大学 | Hole bottom refrigeration wire core-drilling tool for mixed refrigeration of alcohol and liquid nitrogen |
| CN104653134A (en) * | 2014-12-16 | 2015-05-27 | 吉林大学 | Liquid-nitrogen natural-gas hydrate hole bottom freezing and rope coring drill bit |
-
2015
- 2015-07-10 CN CN201510401880.8A patent/CN105041251B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1818323A (en) * | 2006-03-20 | 2006-08-16 | 国家海洋局第一海洋研究所 | Shallow-hole thermal-insulating and pressure-retaining driller in deep water with natural gas hydrate for taking out ocre |
| CN201381816Y (en) * | 2009-03-19 | 2010-01-13 | 李纪章 | Rope core drill bit |
| CN201372754Y (en) * | 2009-03-24 | 2009-12-30 | 武汉金地探矿机械有限公司 | Jet-type reverse rope coring drilling tool |
| RU2425952C1 (en) * | 2010-03-15 | 2011-08-10 | Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт имени Г.В. Плеханова (технический университет)" | Device for obtaining core from hydrate-containing rocks |
| CN101864916A (en) * | 2010-05-27 | 2010-10-20 | 吉林大学 | Hole bottom freezing cord coring drill and coring method thereof |
| CN201835777U (en) * | 2010-05-27 | 2011-05-18 | 吉林大学 | Hole bottom freezing rope core drill |
| CN102943641A (en) * | 2012-12-08 | 2013-02-27 | 吉林大学 | Liquid nitrogen hole bottom frozen rope core drilling tool and core-drilling method |
| CN203430457U (en) * | 2013-09-01 | 2014-02-12 | 吉林大学 | Wire-line coring drill bit with longhole inner pipe in place alarming function and pressure detection system thereof |
| CN104481439A (en) * | 2014-12-10 | 2015-04-01 | 无锡锡钻地质装备有限公司 | Wire core drilling tool |
| CN104499976A (en) * | 2014-12-13 | 2015-04-08 | 吉林大学 | Hole bottom refrigeration wire core-drilling tool for mixed refrigeration of alcohol and liquid nitrogen |
| CN104653134A (en) * | 2014-12-16 | 2015-05-27 | 吉林大学 | Liquid-nitrogen natural-gas hydrate hole bottom freezing and rope coring drill bit |
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| CN109113613A (en) * | 2018-09-03 | 2019-01-01 | 吉林大学 | The rotary refrigerating and pressure keeping cord coring drill of gas hydrates and coring method |
| CN109113613B (en) * | 2018-09-03 | 2020-06-12 | 吉林大学 | Natural gas hydrate rotary type freezing pressure maintaining rope coring drilling tool and coring method |
| CN109113612B (en) * | 2018-09-03 | 2020-06-12 | 吉林大学 | Hammer type freezing and pressure maintaining double-acting rope sampling drilling tool and method for natural gas hydrate |
| CN108952611A (en) * | 2018-10-22 | 2018-12-07 | 吉林大学 | A kind of ocean hole bottom freezing cord coring drill and method |
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