CN104897431A - Free hydrocarbon and soil sample collecting device and collecting method - Google Patents
Free hydrocarbon and soil sample collecting device and collecting method Download PDFInfo
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- CN104897431A CN104897431A CN201510239033.6A CN201510239033A CN104897431A CN 104897431 A CN104897431 A CN 104897431A CN 201510239033 A CN201510239033 A CN 201510239033A CN 104897431 A CN104897431 A CN 104897431A
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Abstract
The invention provides a free hydrocarbon and soil sample collecting device and a collecting method. The free hydrocarbon and soil sample collecting device comprises a hollow drill pipe and a helix slice; the pipe body outer wall of the hollow drill pipe is wound with the helix slice in a helical manner, and the helix slice is extended to the bottom of the hollow drill pipe; the bottom of the hollow drill pipe is connected with a double-wing drill; the upper part and the lower part of the pipe body outer wall of the hollow drill pipe are provided with an air extraction opening and an air inlet port; a capillary is arranged in a hollow cavity of the hollow drill pipe; and the air extraction opening and the air inlet port are communicated via the capillary. According to the free hydrocarbon and soil sample collecting device, a power head is used for driving a whole helix drill pipe to drill; drilling power is large, speed is high, and free hydrocarbon gas of soil 3 meters deep or deeper under the ground can be obtained; the double-wing drill and the helix slice are combined, soil samples of a same depth can be obtained in drilling processes, metal capillary state is more stable, and it is beneficial for obtaining of high-quality free hydrocarbon gas samples.
Description
Technical field
The present invention relates to harvester and the acquisition method of a kind of free hydrocarbon and pedotheque, belong to oil and gas geochemical exploration technical field.
Background technology
In Oil & Gas Resources Exploration means, geochemical prospecting is a kind of important method, is the important step of geochemical prospecting to the collection of native Soil free hydrocarbon, is the important indicator that can reflect oil and gas anomaly to the analysis of free hydrocarbon.Above hydrocarbon-bearing pool, because the micro-of hydrocarbon gas oozes ease, by sampling on earth's surface, and free hydrocarbon indexing Epidemiological Analysis is carried out at scene, thus finds oil and gas anomaly fast.Meanwhile, gather pedotheque, carrying out analysis can as auxiliary characteristics.
At present, the conventional harvester of free hydrocarbon gas sample has following several:
The first adopts drill rod device, after weight knocks about 1-1.5 rice degree of depth, to take out and be connected, extract free hydrocarbon gaseous sample, by analysis free hydrocarbon gaseous sample, indirectly obtain the information of subterranean oil gas reservoir with extraordinary collector with vacuum pump.This harvester is because be short of power or drill rod and get the poor sealing of gas, and the air on earth's surface easily enters in collector, thus causes the interference of earth's surface air to the free gas gathered; In addition because sampling depth is shallow, collected specimens is vulnerable to earth's surface and pollutes interference, so that when analyzing free hydrocarbon sample, the information that often must make mistake, thus the Effect on Detecting having influence on oil and gas geochemical exploration.
The second is the taper bit spiral drill of manual operation, and its advantage is that design is succinct, and easy to carry, the degree of depth of collection is at about 3 meters, and shortcoming is that power is little, and acquisition time is long, and drilling tool returns native ability, can not while soil sampling.
The third is the spiral drill of the taper bit that machine power drives, and its inside is got gas kapillary and often adopted special plastic material, adopts draining to get gas method and gathers gas sample.Its advantage is that power is large, the sample of energy Quick Acquisition 3 meters of degree of depth, sample is little by the pollution on earth's surface, the good airproof performance of spiral drill, the free hydrocarbon in soil can be collected preferably, shortcoming extrudes to both sides bottom the taper bit owing to adopting, and can not return soil in time, can not obtain the soil sample of the same degree of depth; Plastic capillary gets into adstante febre to the free hydrocarbon of organic principle at drilling tool certain pollution; In construction in winter, adopt draining to get gas method when getting gas, kapillary is easily frozen by water droplet, blocking.
In addition, in prior art, adopt the stratum of existing instrument collection free hydrocarbon gas and pedotheque all more shallow, and shallow table stratum is easily polluted, the data in this case obtained can have a negative impact to oil and gas index data.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is the harvester and the acquisition method that propose a kind of free hydrocarbon and pedotheque, can collect to fast and high quality the free hydrocarbon gas closed in the soil of 3 meters or more deep layer, the collection of pedotheque can be carried out simultaneously.
Object of the present invention is achieved by the following technical programs:
A harvester for free hydrocarbon and pedotheque, this device comprises drilling rod and the flight of a hollow, and described flight is wound around in a spiral manner and is arranged on the body of rod outer wall of described drilling rod, and extends to the bottom of described drilling rod;
The bottom of described drilling rod and a double-vane drill bit are fixedly connected;
The upper and lower of the body of rod outer wall of described drilling rod offers a bleeding point and an air intake opening respectively, is provided with a dismountable kapillary, is connected between described air intake opening and described bleeding point by described kapillary in the hollow cavity of described drilling rod.
In above-mentioned free hydrocarbon and the harvester of pedotheque, adopt double-vane drill bit effectively to carry out returning soil, solve the problem that traditional three-wing bit or taper bit can not carry out returning soil.The present invention adopts these parts of flight simultaneously, double-vane drill bit can be drilled through and the soil returned out is back to earth's surface by flight, is convenient to the extraction of pedotheque; Meanwhile, flight can also play the effect of isolated aeroseal boring.According to specific embodiments, flight is along drilling rod along rotating the direction of advance to downward-extension.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, described double-vane drill bit comprises left and right double-vane, and the aerofoil that double-vane is rotating working direction is the plane being provided with arc-shaped recess, or the aerofoil that double-vane is rotating working direction is curved surface.
In above-mentioned free hydrocarbon and the harvester of pedotheque, rotating the aerofoil of working direction, namely shoveling the face of soil, with direct acting of soil, form arc-shaped recess or curved surface, can produce the power that one raises up, the soil promoting to shovel out upwards transmits.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, the parallel angle of described double-vane is 15-30 degree, and vertical direction angle is 50-70 degree, the width 3-5 millimeter wider than drilling rod of double-vane.Preferred, the parallel angle of described double-vane is 15 degree, and vertical direction angle is 70 degree, and the width of double-vane is wider than drilling rod 5 millimeters.
The width of above-mentioned double-vane drill bit is slightly wide than drilling rod, wide, easily leaks gas, narrow, the soil shoveled out upwards cannot be passed.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, the bottom of described drilling rod is fixedly connected by drill bit coupling bolt or screw thread and described double-vane drill bit.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, described double-vane drill bit also comprises connecting pin bores, cylinder connector, six prism connectors and the gasket slot of at least one;
The bottom surrounding of described six prism connectors is provided with annular flange flange, and the external diameter of described annular flange flange is consistent with the external diameter of described drilling rod;
Described connecting pin bores is arranged on described six prism connectors;
Described gasket slot is around the periphery being arranged on described cylinder connector;
Described cylinder connector is fixedly connected with described six prism connector concentrics, and described cylinder connector and described double-vane are separately positioned on top and the bottom of described six prism connectors;
Be provided with the chamber of mating with described cylinder connector and described six prism connectors bottom described drilling rod in the body of rod, described cylinder connector and described six prism connectors enter bottom drilling rod and abut against with described drilling rod afterwards in the body of rod;
The inwall of described cylinder connector and described drilling rod forms sealing by the sealing gasket be arranged in described gasket slot;
Described drilling rod is provided with the hole matched with described connecting pin bores near the lower end of bottom, described drilling rod and described double-vane drill bit are achieved a fixed connection through the hole in described connecting pin bores and drilling rod by connecting pin.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, described drilling rod is fried dough twist spiral drill pipe.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, the top of described drilling rod is connected with unit head.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferred, the top of described drilling rod is provided with unit head thread, and described drilling rod is connected with described unit head by described unit head thread.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, described air intake opening place is provided with filter screen.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, described air intake opening place is also provided with and protects bowl; The described bowl that protects is streamlined, be arranged on described drilling-rod external wall, air intake opening place flight up and down along between, exceed air intake opening 0.3-1 centimetre, preferably exceed air intake opening 1 centimetre.
The above-mentioned bowl that protects is the front of the traffic direction being arranged on air intake opening, only in this way just can play a protective role; Use that to protect the ground pressure that bowl can make air intake opening be subject in the process of creeping into minimum, the stifled air intake opening of soil height extrusion can also be prevented.Traditional air intake opening does not protect a bowl protective device, and when getting gas after getting into 3 meters, generation negative pressure is taken out and held one's breath, and bottom air inlet is blocked; Present invention employs air intake opening and protect a bowl resist technology, when making to bleed, the soil gas of the 3 meters of degree of depth in bottom can be extracted smoothly out.
In the harvester of above-mentioned free hydrocarbon and pedotheque, kapillary can be plastic capillary, tetrafluoroethene kapillary, metal capillary etc., but adopting the kapillary of plastic material in the past, generating heat when creeping at a high speed, and caused the kapillary of plastic material to volatilize organic principle gas because of heat, the closely-related free hydrocarbon composition with oil gas is caused to be polluted, so should not select, also use cost will be considered, therefore simultaneously, preferably, described kapillary is metal capillary.
In the present invention, metal capillary is the design of a long tube, can reach more than 4 meters, and is dismountable design.And in prior art, reach enough degree of depth just needs to connect many capillaries, and the modes such as kapillary connection of following can produce gas leakage more, and damage as occurred in the many modes connected, and change extremely inconvenient; The technical scheme of the application has a long tube to form, and metal material quality is hard, not easily leaks gas, and can entirety change quickly and easily under dismountable mode.
In above-mentioned free hydrocarbon and the harvester of pedotheque, preferably, the external diameter of described metal capillary is 2mm, internal volume 1.5-2 milliliter.
Existing conventional discharge is got gas method and is got gas, needs first in kapillary, to inject water, discharges the original gas in kapillary, and then extracts the method for underground original gas, at least need 5 minutes;
The present invention adopts superfine metal capillary technique, original gas in the pipe of discharging 2 milliliters, then gets the time that free hydrocarbon gas generally needs less than 1 minute.
The present invention also provides the acquisition method of a kind of free hydrocarbon and pedotheque, and it uses above-mentioned free hydrocarbon and the harvester of pedotheque, comprises the following steps:
Step one, the top of drilling rod to be connected with unit head;
Step 2, turn on the power head, drives rod boring to collection point, stop;
Step 3, the bleeding point on drilling rod top to be bled, gas is successively by adopting air intake opening, filter screen, kapillary and bleeding point, and the filling preservation of gas sample of extraction, as the free hydrocarbon collected specimens of this collection point, gather the pedotheque that flight returns up, sealing is preserved simultaneously.
In above-mentioned acquisition method, the bleeding point of syringe to drilling rod top can be used to bleed, then the air seal of extraction can be kept in syringe.
In above-mentioned free hydrocarbon and the acquisition method of pedotheque, preferably, this acquisition method to carry out the step of impermeability test to the kapillary of the inside cavity of drilling rod before being also included in and carrying out step one.
In above-mentioned acquisition method.Adopt impermeability test can guarantee that kapillary is air tight.
Outstanding effect of the present invention is:
The present invention is by double-vane drill bit and return soil flight, and the kapillary of gas production carries out unitary design, directly can gather the gentle sample of soil sample simultaneously, simple and practical, easy to operate, raises the efficiency; Have employed unit head drives whole spiral drill pipe to creep into, the power crept into is large, speed is fast, the free hydrocarbon gas in the soil of 3 meters or more deep layer can be obtained, double-vane drill bit and flight cooperatively interact, the pedotheque of the same degree of depth can be obtained in drilling process, metal capillary state when high speed drill is dynamic is more stable, be conducive to obtaining the high free hydrocarbon gaseous sample of quality, and the speed of evacuation is fast.
Accompanying drawing explanation
Fig. 1 is the structural representation of the harvester of embodiment free hydrocarbon and pedotheque;
Fig. 2 is the structural representation of embodiment double-vane drill bit.
Drawing reference numeral illustrates:
1 unit head thread, 2 fried dough twist spiral drill pipes, 3 flights, 4 connecting pins, 5 double-vane drill bits, 6 air intake openings, 7 filter screens, 8 bleeding points, 9 metal capillaries, 10 protect bowl, 11 gasket slot, 12 cylinder connectors, 13 connecting pin bores, 14 right flanks, 15 left wings, 16 6 prism connectors.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, existing following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
Embodiment
The present embodiment provides a kind of free hydrocarbon of oil and gas geochemical exploration and the harvester of pedotheque, as shown in Figure 1, this device comprises the fried dough twist spiral drill pipe 2 of hollow, the top of fried dough twist spiral drill pipe 2 is provided with unit head thread 1, and fried dough twist spiral drill pipe 2 is connected with unit head by unit head thread 1.Flight 3 is wound around the body of rod outer wall being arranged on spiral drill pipe 2 in a spiral manner, and extends upwardly to the bottom of fried dough twist spiral drill pipe 2 in the side that spiral advances;
The bottom of fried dough twist spiral drill pipe 2 is fixedly connected with a double-vane drill bit 5;
Above-mentioned double-vane drill bit 5, as shown in Figure 2, comprises left and right double-vane, left wing 15, right flank 14, double-vane is the plane being provided with arc-shaped recess at the aerofoil of rotation working direction, and the parallel angle of double-vane is 15 degree, vertical direction angle is 70 degree, and the width of double-vane is wider than drilling rod 5 millimeters;
Above-mentioned double-vane drill bit 5, as shown in Figure 2, also comprises the gasket slot 11 of connecting pin bores 13, cylinder connector 12, six prism connector 16 and two;
The bottom surrounding of six prism connectors 16 is provided with annular flange flange, and the external diameter of described annular flange flange is consistent with the external diameter of described fried dough twist spiral drill pipe 2;
Connecting pin bores 13 is arranged on six prism connectors 16;
Gasket slot 11 is around the periphery being arranged on cylinder connector 12;
Described cylinder connector 12 is fixedly connected with described six prism connector 16 concentrics, and described cylinder connector 12 and described double-vane are separately positioned on top and the bottom of described six prism connectors 16;
Be provided with the chamber of mating with described cylinder connector 12 and described six prism connectors 16 bottom described fried dough twist spiral drill pipe 2 in the body of rod, described cylinder connector 12 and described six prism connectors 16 enter bottom drilling rod and abut against with described fried dough twist spiral drill pipe 2 afterwards in the body of rod;
The inwall of described cylinder connector 12 and described fried dough twist spiral drill pipe 2 forms sealing by the sealing gasket be arranged in described gasket slot 11;
Described fried dough twist spiral drill pipe 2 is provided with the hole matched with described connecting pin bores 13 near the lower end of bottom, described fried dough twist spiral drill pipe 2 and described double-vane drill bit 5 are achieved a fixed connection through the hole in described connecting pin bores 13 and fried dough twist spiral drill pipe 2 by connecting pin 4.
The upper and lower of the body of rod outer wall of fried dough twist spiral drill pipe 2 offers bleeding point 8 and air intake opening 6 respectively, and air intake opening 6 place is provided with filter screen 7.
Air intake opening 6 place of fried dough twist spiral drill pipe 2 is also provided with and protects bowl 10; Protect bowl 10 in streamlined, be arranged on fried dough twist spiral drill pipe outer wall, the flight at air intake opening 6 place up and down along between, exceed air intake opening 1 centimetre.
Be provided with Demountable metallic kapillary 9 in the hollow cavity of fried dough twist spiral drill pipe 2, the external diameter of metal capillary 9 is 2mm, and internal volume 1.5-2 milliliter, is connected by metal capillary 9 between air intake opening 6 and bleeding point 8.
The present embodiment also provides the acquisition method of a kind of free hydrocarbon and pedotheque, and it uses above-mentioned free hydrocarbon and the harvester of pedotheque, comprises the following steps:
Step one, the impermeability test of the metal capillary 9 of the inside cavity of fried dough twist spiral drill pipe 2 of first carrying out, air tight to guarantee metal capillary 9, after stand the test, the top of fried dough twist spiral drill pipe 2 and unit head are assembled;
Step 2, turn on the power head, drives fried dough twist spiral drill pipe 2 to creep into clockwise, gets into collection point and stop; Creep in process at sample collection, double-vane drill bit 5 is undertaken returning soil by flight 3, reaches the sealing purpose of isolated air simultaneously;
Step 3, to bleed with the bleeding point 8 of syringe on fried dough twist spiral drill pipe 2 top, gas enters syringe by adopting air intake opening 6, filter screen 7, metal capillary 9 and bleeding point 8 successively, (wherein the first pipe is because getting rid of containing air for the gas sample sealing gasket good seal extracted out, collect the second pipe), as the free hydrocarbon collected specimens of this collection point, gather the pedotheque that flight 3 returns up simultaneously, install with aluminium foil bag sealing.
The harvester of the present embodiment can get into 3 meters of dark collection points at about 10 minutes, the free hydrocarbon CH collected above hydrocarbon-bearing pool
4(methane) content can up to 1000ppm-10000ppm, and the free hydrocarbon CH that traditional harvester gathers
4(methane) content is at below 300ppm, in the exploration of surface oil and gas in the neat oil field of Xinjiang jorum chemistry, application the present embodiment gathers free gas sample, analysis result success prediction 10 mouthfuls of oil wells.
Contrast test:
1, drill bit chooses experiment: test according to the free hydrocarbon of above-mentioned oil and gas geochemical exploration and the harvester of pedotheque, difference is to change the double-vane drill bit of the present embodiment into common double-vane drill bit and three-wing bit, experimental result shows, getting into same 3 meters of dark stratum, the soil amount of returning of three-wing bit is generally at about 100 grams, the soil that returns of double-vane drill bit measures general about 300 grams, and the embodiment of the present invention the soil amount of returning returning native double-vane drill bit at about 2000 grams, visible double-vane drill bit of the present invention has and significantly returns native effect.
2, protect a bowl Protection: test according to the free hydrocarbon of above-mentioned oil and gas geochemical exploration and the harvester of pedotheque, whether difference is to install protects bowl.Experimental result shows, and air intake opening does not protect a bowl protective device, and when getting gas after getting into 3 meters, generation negative pressure is taken out and held one's breath, and bottom air inlet is blocked; The embodiment of the present invention have employed air intake opening and protects a bowl resist technology, when making to bleed, can extract the soil gas of the 3 meters of degree of depth in bottom smoothly out.
3, kapillary gas production experiment: comparative example adopts existing traditional draining to get gas method and gets gas, first injects water in kapillary, and discharge the original gas in kapillary, and then extract the method for underground original gas, whole process at least needs 5 minutes; The embodiment of the present invention adopts superfine metal capillary technique, original gas in the pipe of discharging 2 milliliters, then gets the time that free hydrocarbon gas generally needs less than 1 minute.
4, native gas production experiment is adopted: comparative example adopts the conventional method individually gathering soil sample and gas sample in prior art, at least with the time of 15 minutes; Embodiment of the present invention method have employed superfine metal kapillary and gets gas, returns native double-vane drill bit and air intake opening resist technology and large power creeps into, and native gas production operation is adopted in disposable realization, can realize the collection simultaneously completing soil sample and gas sample in 5 minutes.
Therefore the embodiment of the present invention is by double-vane drill bit and return soil flight, and the kapillary of gas production carries out unitary design, directly can gather the gentle sample of soil sample simultaneously, simple and practical, easy to operate, raise the efficiency; The unit head adopted drives whole spiral drill pipe to creep into, the power crept into is large, speed is fast, the free hydrocarbon gas in the soil of 3 meters or more deep layer can be obtained, double-vane drill bit and flight cooperatively interact, the pedotheque of the same degree of depth can be obtained in drilling process, metal capillary is in stable condition when high speed drill is dynamic, be conducive to obtaining the high free hydrocarbon gaseous sample of quality, and the speed of evacuation is fast.
Claims (14)
1. a harvester for free hydrocarbon and pedotheque, is characterized in that: this device comprises drilling rod and the flight of a hollow, and described flight is wound around in a spiral manner and is arranged on the body of rod outer wall of described drilling rod, and extends to the bottom of described drilling rod;
The bottom of described drilling rod and a double-vane drill bit are fixedly connected;
The upper and lower of the body of rod outer wall of described drilling rod offers a bleeding point and an air intake opening respectively, is provided with a dismountable kapillary, is connected between described air intake opening and described bleeding point by described kapillary in the hollow cavity of described drilling rod.
2. the harvester of free hydrocarbon and pedotheque according to claim 1, it is characterized in that: described double-vane drill bit comprises left and right double-vane, double-vane is the plane being provided with arc-shaped recess at the aerofoil of rotation working direction, or double-vane is curved surface at the aerofoil of rotation working direction.
3. the harvester of free hydrocarbon and pedotheque according to claim 2, is characterized in that: the parallel angle of described double-vane is 15-30 degree, and vertical direction angle is 50-70 degree, the width 3-5 millimeter wider than drilling rod of double-vane.
4. the harvester of free hydrocarbon and pedotheque according to any one of claim 1-3, is characterized in that: the bottom of described drilling rod is fixedly connected by drill bit coupling bolt or screw thread and described double-vane drill bit.
5. the harvester of free hydrocarbon and pedotheque according to Claims 2 or 3, is characterized in that: described double-vane drill bit also comprises connecting pin bores, cylinder connector, six prism connectors and the gasket slot of at least one;
The bottom surrounding of described six prism connectors is provided with annular flange flange, and the external diameter of described annular flange flange is consistent with the external diameter of described drilling rod;
Described connecting pin bores is arranged on described six prism connectors;
Described gasket slot is around the periphery being arranged on described cylinder connector;
Described cylinder connector is fixedly connected with described six prism connector concentrics, and described cylinder connector and described double-vane are separately positioned on top and the bottom of described six prism connectors;
Be provided with the chamber of mating with described cylinder connector and described six prism connectors bottom described drilling rod in the body of rod, described cylinder connector and described six prism connectors enter bottom drilling rod and abut against with described drilling rod afterwards in the body of rod;
The inwall of described cylinder connector and described drilling rod forms sealing by the sealing gasket be arranged in described gasket slot;
Described drilling rod is provided with the hole matched with described connecting pin bores near the lower end of bottom, described drilling rod and described double-vane drill bit are achieved a fixed connection through the hole in described connecting pin bores and drilling rod by connecting pin.
6. the harvester of free hydrocarbon and pedotheque according to claim 1, is characterized in that: described drilling rod is fried dough twist spiral drill pipe.
7. the harvester of free hydrocarbon and pedotheque according to claim 1, is characterized in that: the top of described drilling rod is connected with unit head.
8. the harvester of free hydrocarbon and pedotheque according to claim 7, it is characterized in that: the top of described drilling rod is provided with unit head thread, described drilling rod is connected with described unit head by described unit head thread.
9. the harvester of free hydrocarbon and pedotheque according to claim 1, is characterized in that: described air intake opening place is provided with filter screen.
10. the harvester of free hydrocarbon and pedotheque according to claim 9, is characterized in that: described air intake opening place is also provided with and protects bowl; The described bowl that protects is streamlined, be arranged on described drilling-rod external wall, air intake opening place flight up and down along between, exceed air intake opening 0.3-1 centimetre.
The harvester of 11. free hydrocarbon and pedotheques according to claim 1, is characterized in that: described kapillary is metal capillary.
12., according to the harvester of free hydrocarbon described in claim 11 and pedotheque, is characterized in that: the external diameter of described metal capillary is 2mm, internal volume 1.5-2 milliliter.
The acquisition method of 13. 1 kinds of free hydrocarbons and pedotheque, the free hydrocarbon described in any one of its use claim 1-12 and the harvester of pedotheque, comprise the following steps:
Step one, the top of drilling rod to be connected with unit head;
Step 2, turn on the power head, drives rod boring to collection point, stop;
Step 3, the bleeding point on drilling rod top to be bled, gas is successively by adopting air intake opening, filter screen, kapillary and bleeding point, and the filling preservation of gas sample of extraction, as the free hydrocarbon collected specimens of this collection point, gather the pedotheque that flight returns up, sealing is preserved simultaneously.
The acquisition method of 14. free hydrocarbons according to claim 13 and pedotheque, is characterized in that: the step of before this acquisition method is also included in and carries out step one, the kapillary of the inside cavity of drilling rod being carried out to impermeability test.
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| CN112525591A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Gas sampling device and rock stratum sample and gas sample corresponding method |
| CN115494111A (en) * | 2022-11-07 | 2022-12-20 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Soil thermal conductivity testing device and method |
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| CN112525591A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Gas sampling device and rock stratum sample and gas sample corresponding method |
| CN115494111A (en) * | 2022-11-07 | 2022-12-20 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Soil thermal conductivity testing device and method |
| CN115494111B (en) * | 2022-11-07 | 2023-10-03 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Soil thermal conductivity testing device and method |
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