CN103217316B - The acquisition system of the on-the-spot rock core gas of a kind of Gas Hydrate Drilling - Google Patents
The acquisition system of the on-the-spot rock core gas of a kind of Gas Hydrate Drilling Download PDFInfo
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- CN103217316B CN103217316B CN201310149071.3A CN201310149071A CN103217316B CN 103217316 B CN103217316 B CN 103217316B CN 201310149071 A CN201310149071 A CN 201310149071A CN 103217316 B CN103217316 B CN 103217316B
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Abstract
The present invention proposes the acquisition system of the on-the-spot rock core gas of a kind of Gas Hydrate Drilling, comprise air collector, constant temperature water box, bumper and gas bottle, described constant temperature water box is positioned on described bumper, described air collector comprises detachable tank body and Cap for tin body, and described tank body and Cap for tin body can be tightly connected, when adopting described acquisition system to gather rock core gas, the tank body that core sample is housed is connected with the constant temperature saturated brine environment lower seal of Cap for tin body at constant temperature water box, and described gas bottle is connected to the gas collection outlet of Cap for tin body under constant temperature saturated brine environment, acquisition system of the present invention is from packaged water compound core sample, release gas, gas collecting, concussion gas collection is sealed up for safekeeping to gas, whole process once completes, simplify a series of pilot process, substantially increase gas collecting work efficiency.
Description
Technical field
The present invention relates to gas collecting field, relate to a kind of system for hydrocarbon gas in on-the-spot Quick Acquisition rock core (and hydrate) of Gas Hydrate Drilling more specifically.
Background technology
Gas hydrate are a kind of high density (1m
3164m can be discharged
3methane) clean energy resource, be 2 times of the conventional energy resources resource summations such as global coal, oil, rock gas, caused showing great attention to of global many countries.In drilling process, the size of rock core release gas flow is that scene judges one of key parameter whether hydrate exists fast.Therefore, the on-the-spot gas producing device fast of hydrate drill cores is the important foundation equipment of drill site gas collecting, measurement and then quick recognition hydrate.
Through literature search, domestic and international gas hydrate drill cores gas collection method, mainly contains static headspace gas method and standing degassing method at present.The former is mainly used in gathering the gas in rock core (or landwaste), and latter is for gathering the gas of hydrate rock core, and concrete grammar is as follows:
1, static headspace gas method, concrete operations are: the core sample that 5cm is long is weighed and loaded and is furnished with in the metal can of dottle pin, add water and make to be full of water between metal can and sample, certain locus (100ml) is left on top, the germifuge (sodiumazide) of 2.3g is added in water, then sample and water-stop are got up, be inverted refrigeration and transport, after delivering to laboratory, the sample temperature of refrigeration is returned to 20 DEG C, the row high speed machine of 5 minutes vibration again, then gets a certain amount of vessel head space gas (15ml) and carries out hydrocarbon composition and isotope analysis.The method adopts normal temperature mechanical oscillation mode to discharge gas, and advantage is: field operation is simple, quick; Shortcoming is: (1), along with the decomposition of hydrate and air release, the increasing pressure in metal can is large, inhibits the decomposition of hydrate, causes air release incomplete; (2) decompose the air that the hydrocarbon gas discharged has been mixed into metal can headspace, cause a series of analytical error.
2, drainage is left standstill, concrete operations are: select content higher and macroscopic hydrate core sample, be immersed under water, the gas of decomposition of hydrate release, in the glass container gas collection discharged sealed to available bottle stopper by displacement water law, or be temporarily collected in the plastic injector of 60ml, then import in special vial and seal up for safekeeping.The method leaves standstill release under adopting normal temperature naturally, and gas is got in draining, and advantage is that field operation is simple, eliminates the impact of air; Shortcoming is: it is slower that (1) leaves standstill Spontaneous release speed; (2) sample decomposition release is influenced by environmental temperature, and make decomposition of hydrate degree varies, air release amount error is larger.
In sum, the above two kinds of methods existed in prior art all have the simple advantage of field operation, but also all have that decomposition rate is slow, efficiency is low, incomplete, and the easy shortcoming such as influenced by ambient temperature, but also the impact that air is mixed into pollution may be subject to.
Summary of the invention
The present invention is for overcoming above-mentioned deficiency of the prior art, there is provided a set of Fast Acquisition System that can be used in hydrocarbon gas in the on-the-spot rock core of Gas Hydrate Drilling, this acquisition system possesses that material is excellent, easy and simple to handle, work efficiency is high and gather the measured advantage of gaseous sample matter.
Concrete technical scheme of the present invention is as follows:
The acquisition system of the on-the-spot rock core gas of a kind of Gas Hydrate Drilling, comprise air collector, constant temperature water box, bumper and gas bottle, described constant temperature water box is positioned on described bumper, described air collector comprises detachable tank body and Cap for tin body, and described tank body and Cap for tin body can be tightly connected, when adopting described acquisition system to collect rock core gas, the tank body that core sample is housed is connected with the constant temperature saturated brine environment lower seal of Cap for tin body at constant temperature water box, and described gas bottle is connected to the gas collection outlet of Cap for tin body under constant temperature saturated brine environment.
Further according to acquisition system of the present invention, wherein said tank body is the core structure of upper end open, lower end closed, openend is used for putting into core sample and injecting saturated brine, openend outer wall is provided with plural O-ring seal draw-in groove, and is embedded with O-ring seal at described O-ring seal draw-in groove.
Further according to acquisition system of the present invention, wherein said Cap for tin body is the detachable gas collection and the gas operated device that are sleeved on tank body openend, and forms sliding sealing by described O-ring seal with described tank body and be connected.
Further according to acquisition system of the present invention, wherein said Cap for tin body bottom is circular tube shaped for cylindric, middle part are round table-like, top, and Cap for tin body bottom cylinder inner wall diameter is slightly larger than described tank body openend outer diameter, round platform inner wall smooth in the middle part of Cap for tin body, Cap for tin body top pipe stretches in inverted gas bottle as gas collection conduit.
Further according to acquisition system of the present invention, wherein the bottom of described gas collection conduit is provided with gas collection catheter switch, pass through through gas collection conduit for gas in domination set gas tank, gas collection conduit outer wall on described gas collection catheter switch is provided with the gas bottle bracket of more than three, by fixed screw, described gas bottle buckle is fixed on described gas bottle bracket, and ensures that described gas collection conduit to stretch in described gas bottle and to leave gap between its outer wall and gas bottle inwall.
Further according to acquisition system of the present invention, wherein said constant temperature water box comprises tank, air collector draw-in groove and temperature control panel, described tank is used for holding saturated brine, described air collector draw-in groove is arranged in described tank, for fixed set gas tank, described temperature control panel is arranged on sink outer walls face, for automatically regulating the brine temp in tank.
Further according to acquisition system of the present invention, wherein said bumper comprises vibroshock, bumper pallet, bumper gauge tap and bumper pedestal, described bumper pallet is arranged on bumper pedestal by vibroshock, described bumper gauge tap is for controlling the vibrations of bumper pallet, and constant temperature water box is snapped on the table top of described bumper pallet.
Further according to acquisition system of the present invention, wherein said gas bottle is the special gas bottle of test analysis, and bottle cap is with getting pore and sealing gasket.
The purposes of Gas Hydrate Drilling of the present invention on-the-spot rock core gas collecting system, by described acquisition system, hydrocarbon gas in the rock core at Gas Hydrate Drilling scene is collected, specifically comprise: after the core sample cleaning of first probing being taken out, put into described tank body, then Cap for tin body is buckled to buckle on tank body, by gas bottle under the saturated brine of constant temperature water box and export at the gas collection of Cap for tin body, and get rid of air wherein, then under preset temperature and vibration frequency to the release gas collection schedule time of core sample.
At least following technique effect can be reached by rock core gas collecting system of the present invention:
1, material is excellent
(1) air collector 1 material used in device of the present invention is stainless steel, and inside surface is smooth, both wear-resistant durable, anticorrosive again, can also avoid pollution rock core being discharged to gas;
(2) constant temperature water box 2 ectosome in device of the present invention and bumper 3 main body are shaped steel (mopping), and tank 2-1 and air collector draw-in groove are PPR plastics, and the former is durable in use, and the latter is corrosion-resistant, can Reusability for a long time.
2, easy and simple to handle
(1) device of the present invention is before getting gas with air collector 1, and sample is put into, capping facilitates.After the hydrate core sample of gas to be collected is directly put into air collector tank body 1-1, Cap for tin body 1-2 is enclosed within tank body openend and presses gently and get final product capping, easy to operate.Fill up the blank that this area there is no such device, also overcome the deficiency of near field similar device complicated operation;
(2) the gas process of getting of device of the present invention is simple and convenient.After air collector tank body 1-1 put into by sample, under saturated brine together with the latter's submergence constant temperature water box, and be placed in air collector draw-in groove 2-2, then after using Cap for tin body 1-2 capping, being inverted by gas bottle is under water enclosed within gas collection conduit 1-7, namely starts and get gas, after getting depressed bundle after fixing, under water gas bottle is tightened sealing can be sent to field experiment room and directly test or put into cold compartment of refrigerator and deposit, easy to operate.Avoid and penetrate air collector with syringe and extract, the complicated processes of the special gas bottle that reinjects, it also avoid being mixed into of air in transpose procedure.
3, work efficiency is high
(1) air collector 1 in device of the present invention is when loading, capping core sample, and easily simple to operate, intermediate link is few, improves the packaging efficiency of gas production sample;
(2) sample in the air collector 1 in device of the present invention is while release gas, and namely special gas bottle starts water pumping gas production, degassed with get gas and carry out simultaneously, overcome and existingly get the serial pilot process such as gas, transposition, improve and get gas efficiency;
(3) air collector 1 in device of the present invention is heated in constant temperature water box 2, significantly can accelerate the air release speed of hydrate rock core, improve gas collecting efficiency;
(4) bumper 3 is utilized to shake air collector 1 in device of the present invention, both the speed of hydrate core sample release gas in air collector 1 had been accelerated, also can promote that the gas collection that air collector 1 inwall adsorbs is to gas collection conduit 1-7, also maintains the constant of all samples gas production environment temperature.Not only ensure that the completely efficient of gas collection, and ensure that the comparability of different rock core gas production;
(5) device of the present invention is sealed up for safekeeping from packaged water compound core sample, release gas, gas collecting, concussion gas collection to gas, and whole process once completes, and simplifies a series of pilot process, substantially increases gas collecting efficiency.
4, gaseous sample quality is gathered good
Device of the present invention is utilized to carry out all operations of hydrate rock core release gas collecting, all finish drilling at saturated brine, both the pollution being mixed into air had been overcome, available salt solution is sealed up for safekeeping at once again, microorganism can be prevented the destruction of gathered hydrate release gas and transformation, ensure that the quality of gathered gaseous sample.
Accompanying drawing explanation
Fig. 1 is that the assembly of Gas Hydrate Drilling of the present invention on-the-spot rock core gas collecting system splits schematic diagram;
Fig. 2 is the schematic diagram using Gas Hydrate Drilling of the present invention on-the-spot rock core gas collecting system to carry out gas collecting;
In figure, the implication of each Reference numeral is as follows:
1 is that air collector: 1-1 is tank body, 1-2 is Cap for tin body, 1-3 is O-ring seal draw-in groove, 1-4 is O-ring seal, 1-5 is gas bottle bracket, 1-6 is fixed screw, 1-7 is gas collection conduit, 1-8 is gas collection catheter switch;
2 is that constant temperature water box: 2-1 is tank, 2-2 is air collector draw-in groove, 2-3 is temperature control panel;
3 is that bumper: 3-1 is vibroshock, 3-2 is bumper pallet, 3-3 is bumper gauge tap, 3-4 is bumper pedestal;
4 is gas bottle.
Embodiment
Below in conjunction with accompanying drawing, hydrocarbon gas acquisition system in the on-the-spot rock core of Gas Hydrate Drilling of the present invention is described in detail; to enable, those skilled in the art are clearer understands the solution of the present invention, but does not therefore limit the scope of the invention.
As shown in Figure 1, in the on-the-spot rock core of Gas Hydrate Drilling of the present invention, hydrocarbon gas acquisition system totally comprises air collector 1, constant temperature water box 2, bumper 3 and gas bottle 4 four part (Fig. 1).Wherein, air collector 1 comprises again tank body 1-1, Cap for tin body 1-2, O-ring seal draw-in groove 1-3, O-ring seal 1-4, gas bottle bracket 1-5, fixed screw 1-6, gas collection conduit 1-7, gas collection catheter switch 1-8; Constant temperature water box 2 specifically comprises again tank 2-1, air collector draw-in groove 2-2 and temperature control panel 2-3; Bumper 3 specifically comprises again vibroshock 3-1, bumper pallet 3-2, bumper gauge tap 3-3 and bumper pedestal 3-4.Each several part (Fig. 1) further illustrates as follows:
The tank body 1-1 that described air collector 1 comprises is the core structure of upper end open, lower end closed, and openend is used for putting into core sample and injecting saturated brine; Openend outer wall is provided with two or more, is preferably three O-ring seal draw-in groove 1-3, and for fixed seal ring 1-4, described O-ring seal 1-4 preferably samples rubber seal.
The Cap for tin body 1-2 that air collector 1 comprises is the detachable gas collection and the gas operated device that are sleeved on tank body 1 openend, enters special gas bottle 4 for the gas collecting the release of hydrate rock core; Cap for tin body 1-2 forms by rubber seal 1-4 and tank body 1-1 being tightly connected, in case gas leaks outside from junction of sliding.Cap for tin body 1-2 bottom is circular tube shaped for cylindric, middle part are round table-like, top, and Cap for tin body 1-2 bottom cylinder inner wall diameter, slightly larger than tank body 1-1 openend outer diameter, guarantees that Cap for tin body 1-2 can easily be enclosed within tank body 1-1, be round table-like in the middle part of Cap for tin body 1-2, be beneficial to gas collection and enter gas collection conduit 1-7, this part inwall requires smooth, to reduce the gas flow of sorption on inwall, Cap for tin body 1-2 top pipe can directly as gas collection conduit 1-7, and for the gas collected in release, Cap for tin body 1-2 in tank body 1-1 is all imported inverted gas bottle 4, described gas bottle 4 is the special gas bottle collecting hydrocarbon gas, gas collection catheter switch 1-8 is provided with bottom gas collection conduit 1-7, pass through through gas collection conduit for gas in domination set gas tank, gas collection conduit outer wall on gas collection catheter switch is provided with three gas bottle bracket 1-5, for the special gas bottle 4 of buckle, the position of gas bottle bracket 1-5 should be stretched into special gas bottle 4 and is advisable to meet gas collection conduit 1-7, fixed screw 1-6 is used for fixing special gas bottle 4, avoid gas bottle 4 internal cause gas too much floating, crookedly cause Leakage Gas, gas collection conduit 1-7 to go deep in gas bottle and leaves gap between its outer wall and gas bottle 4 inwall, during to ensure that gas enters gas bottle 4, in bottle, salt solution is discharged in real time.
Described gas bottle 4 is the special air inlet bottle of test analysis, and bottle cap is with getting pore and sealing gasket, and the gas band water collected is sent to field experiment room Direct Analysis after being upside down in and tightening bottle cap sealing under water at once.
The tank 2-1 that described constant temperature water box 2 comprises is for holding saturated brine, and the saturated brine held, for arranging for the air in air collector 1 and gas bottle 4 and getting gas, can suppress the growth of bacterium in water and bacterium to the transformation of hydrocarbon gas in bottle simultaneously; The air collector draw-in groove 2-2 comprised is arranged in described tank 2-1, for fixed set gas tank 1, can arrange multiple draw-in groove 2-2 as required and can place multiple air collector 1 to make constant temperature water box 2 simultaneously; Included temperature control panel 2-3 is used for the brine temp automatically regulated in the tank 2-1 of constant temperature water box, is arranged on tank wall.
Described bumper 3 comprises vibroshock 3-1, bumper pallet 3-2, bumper gauge tap 3-3 and bumper pedestal 3-4.Described bumper pallet 3-2 is arranged on bumper pedestal 3-4 by vibroshock 3-1, and described bumper gauge tap 3-3 is for controlling the vibrations of bumper pallet 3-2.Concrete described vibroshock 3-1 is for reducing and cushion the strenuous vibration of bumper pallet 3-2; Described bumper pallet 3-2 concrete structure adds a pair eccentric wheel by motor and forms, and is arranged on table top (reverse side) center by a pair suspension bracket shaft coupling, for generation of vertical tremor, and the upper buckle constant temperature water box 2 of table top (front) of pallet; Bumper gauge tap 3-3 is for controlling the vibrations time, and when opening switch 3-3, bumper pallet 3-2 can drive the constant temperature water box 2 that air collector 1 is housed to do high-frequency vibration, is beneficial to convergence and the collection of gas in air collector.
In the on-the-spot rock core of Gas Hydrate Drilling of the present invention, the operation using method of hydrocarbon gas acquisition system is as shown in Figure 2:
First be buckled in by constant temperature water box 2 on the table top (front) of bumper pallet 3-2, whether inspection bumper 3 shakes normal.
Then saturated brine is poured in the tank 2-1 of constant temperature water box, and on guaranteeing that water potential is at the bottom of the bottle getting gas cylinder 4, as shown in Figure 2.Then open water-bath Thermostat Temperature Control switch 2-3, temperature is adjusted to 40 DEG C, make the saturated brine temperature constant in tank 2-1, and check whether rubber seal 1-4 has all been contained in the O-ring seal draw-in groove 1-3 of tank body.
Then enter and get the gas stage: the core sample that probing is taken out is put into rapidly the bucket that clear water is housed and washes drilling fluid and surface irregularities, then sample is put into stainless steel tank body 1-1, the tank body 1-1 that sample is housed is positioned in the air collector draw-in groove 2-2 in constant temperature water box tank 2-1, allow in tank body 1-1 and be full of saturated brine, object of this operation gets rid of the air in tank body 1-1.Open the gas collection catheter switch 1-8 of Cap for tin body 1-2, and Cap for tin body 1-2 is immersed in the saturated brine in tank 2-1 completely, fully discharge inner air, then under water Cap for tin body 1-2 is buckled on tank body 1-1.Now by the rubber seal 1-4 that tank body carries, fully can ensure Cap for tin body 1-2 and tank body 1-1 closed butt joint above, the unlikely gas discharged that allows overflows from junction surface between the two.Then according to core sample feature (lithology, the features such as crack) and whether have the observation of the situations such as air release (bubble) when cleaning sample, choose the gas bottle 4 of coupling rock core gas production rate size, ensure that the gas volume collected should not exceed 4/5 of gas bottle volume, make in gas bottle, to remain with a certain amount of saturated brine, avoid gas to overflow to lose, the suitable gas bottle 4 chosen is put into the saturated brine of tank 2-1, be full of saturated brine, discharge the air in gas bottle 4, gas bottle 4 is buckled on the gas collection conduit 1-7 on Cap for tin body 1-2 below the saturated brine water surface, and be placed on gas bottle bracket 5, tighten fixed screw 1-6, guarantee that gas bottle 4 can not drift about or topple over, also ensure that gas collection conduit 1-7 extend into the inside of gas bottle 4 completely like this, ensure that the gas that rock core discharges all enters into gas bottle 4.Maintain certain interval between gas collection conduit 7 and gas bottle 8, when can guarantee that gas enters into gas bottle 4, the saturated brine of gas bottle 4 is discharged, start in this case to get gas.
Sample gas acquisition time is 2 hours, and all samples is all carry out under isobaric (1 atmospheric pressure) condition of isothermal (40 DEG C), ensures the consistent of the consistent sample desorption condition of gas production temperature.Bumper gauge tap 3-2 is constantly started during gas production, bumper 3 is made to carry out upper and lower high speed vibration, vibration frequency is 3000 beats/min, about vibration amplitude 3mm, object accelerates rock core air release speed, also can promote that a small amount of sorption gas on the inwall of tank body 1 and Cap for tin body 1-2 enters in gas bottle 4 simultaneously, during gas production, if when gas collecting amount exceedes gas bottle volume 4/5, can closure set airway switch 1-8, the gas bottle more renewed, then opens gas collection catheter switch 1-8 and continues to gather gas, until gas production terminates.
After 2 hours, be inverted the bottle cap tightening the gas bottle 4 collecting gas under water, gas bottle 4 bottleneck is delivered to field laboratory down and is carried out analyzing or leaving in refrigerator refrigerating, the principle of sample buffet, one is that temperature is as far as possible low, like this can anti-bacteria is movable and increase better, and two is guarantee that the saturated brine in gas bottle 4 does not freeze, freezing to cause gas bottle to break, and refrigerated storage temperature is proper between 0-4 DEG C.
In the on-the-spot rock core of Gas Hydrate Drilling of the present invention, the innovative characteristics of hydrocarbon gas acquisition system and technique effect have the following aspects:
1), utilize constant temperature water box tank built with saturated brine, discharge the air in air collector, both overcome the pollution being mixed into air, and utilized again salt solution to prevent microorganism to the destruction of gathered hydrate release gas and transformation, ensure that the quality of gathered gaseous sample.
2) utilize the distinctive appearance of Cap for tin body 1-2 to design, the gas collection discharged by rock core in tank body 1-1, in the special gas bottle 4 of back-off under water, is beneficial to gas collection, improves and get gas efficiency.
3) utilize heated at constant temperature, mechanical shock not only to accelerate the decomposition release rate of hydrate in rock core, also maintain the constancy of temperature in all core sample gas collecting processes, ensure that the comparability of gas collecting amount.
4) decrease the gas absorption on tank body 1-1 and Cap for tin body 1-2 inwall by the mechanical shock of bumper, ensure that the gas discharged enters in special gas bottle 4 to greatest extent, improve capacity gauge and the efficiency of gas.
5) device of the present invention is sealed up for safekeeping from packaged water compound core sample, release gas, gas collecting, concussion gas collection to gas, and whole process once completes, and simplifies a series of pilot process, substantially increases gas collecting work efficiency.
Below be only that the preferred embodiment of the present invention is described; technical scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present invention is conceived all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.
Claims (3)
1. the acquisition system of the on-the-spot rock core gas of Gas Hydrate Drilling, it is characterized in that, comprise air collector (1), constant temperature water box (2), bumper (3) and gas bottle (4), described constant temperature water box (2) is positioned on described bumper (3), described air collector (1) comprises detachable tank body (1-1) and Cap for tin body (1-2), and described tank body (1-1) and Cap for tin body (1-2) can be tightly connected, when adopting described acquisition system to gather rock core gas, the tank body (1-1) that core sample is housed is connected with the constant temperature saturated brine environment lower seal of Cap for tin body (1-2) at constant temperature water box (2), and described gas bottle (4) is connected to the gas collection outlet of Cap for tin body (1-2) under constant temperature saturated brine environment, described tank body (1-1) is upper end open, the core structure of lower end closed, openend is used for putting into core sample and injecting saturated brine, openend outer wall is provided with plural O-ring seal draw-in groove (1-3), and is embedded with O-ring seal (1-4) described O-ring seal draw-in groove (1-3), described Cap for tin body (1-2) is for being sleeved on detachable gas collection and the gas operated device of tank body (1-1) openend, and form sliding sealing with described tank body (1-1) be connected by described O-ring seal (1-4), described Cap for tin body (1-2) bottom is cylindric, middle part is round table-like, top is circular tube shaped, and Cap for tin body (1-2) bottom cylinder inner wall diameter is slightly larger than described tank body (1-1) openend outer diameter, Cap for tin body (1-2) middle part round platform inner wall smooth, Cap for tin body (1-2) top pipe stretches in inverted gas bottle (4) as gas collection conduit (1-7), the bottom of described gas collection conduit (1-7) is provided with gas collection catheter switch (1-8), gas collection conduit outer wall on described gas collection catheter switch is provided with the gas bottle bracket (1-5) of more than three, by fixed screw (1-6), described gas bottle (4) buckle is fixed on described gas bottle bracket (1-5), and ensure that described gas collection conduit (1-7) to be stretched in described gas bottle (4) and to leave gap between its outer wall and gas bottle (4) inwall, described gas bottle (4) is the special gas bottle of test analysis, bottle cap is with getting pore and sealing gasket, described constant temperature water box (2) comprises tank (2-1), air collector draw-in groove (2-2) and temperature control panel (2-3), described tank (2-1) is for holding saturated brine, described air collector draw-in groove (2-2) is arranged in described tank (2-1), for fixed set gas tank (1), described temperature control panel (2-3) is arranged on sink outer walls face, for automatically regulating the brine temp in tank (2-1).
2. acquisition system according to claim 1, it is characterized in that, described bumper (3) comprises vibroshock (3-1), bumper pallet (3-2), bumper gauge tap (3-3) and bumper pedestal (3-4), described bumper pallet (3-2) is arranged on bumper pedestal (3-4) by vibroshock (3-1), described bumper gauge tap (3-3) is for controlling the vibrations of bumper pallet (3-2), and constant temperature water box (2) is snapped on the table top of described bumper pallet (3-2).
3. the purposes of the acquisition system of the on-the-spot rock core gas of Gas Hydrate Drilling described in claim 1 or 2, it is characterized in that, by described acquisition system, hydrocarbon gas in the rock core at Gas Hydrate Drilling scene is gathered, specifically comprise: after the core sample cleaning of first probing being taken out, put into described tank body (1-1), then under the saturated brine of constant temperature water box (2), Cap for tin body (1-2) is buckled on tank body, gas bottle (4) is buckled and exports at the gas collection of Cap for tin body (1-2), and the air got rid of wherein, then under preset temperature and vibration frequency to the release gas collecting schedule time of core sample.
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| CN105092314B (en) * | 2014-05-23 | 2020-01-24 | 中国石油化工股份有限公司 | Apparatus for headspace collection and method of using the same |
| US9828820B2 (en) * | 2015-09-30 | 2017-11-28 | Aramco Services Company | Methods and apparatus for collecting and preserving core samples from a reservoir |
| CN110631951B (en) * | 2018-06-22 | 2021-11-09 | 中国石油化工股份有限公司 | On-site detection device and method for shale desorption gas |
| CN109529469A (en) * | 2019-01-07 | 2019-03-29 | 江苏鱼跃医疗设备股份有限公司 | A kind of storage tank arrangement and the nitrogen oxygen segregation apparatus using it |
| CN110146345B (en) * | 2019-05-08 | 2021-01-15 | 中南大学 | Dynamic and static loading simulation sampling experiment system and method for reservoir containing natural gas hydrate |
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