CN105910954A - Shale gas content measuring instrument - Google Patents
Shale gas content measuring instrument Download PDFInfo
- Publication number
- CN105910954A CN105910954A CN201610260577.5A CN201610260577A CN105910954A CN 105910954 A CN105910954 A CN 105910954A CN 201610260577 A CN201610260577 A CN 201610260577A CN 105910954 A CN105910954 A CN 105910954A
- Authority
- CN
- China
- Prior art keywords
- gas
- shale
- gas collecting
- instrument
- desorption
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- 239000007789 gases Substances 0.000 title claims abstract description 96
- 238000003795 desorption Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000003570 air Substances 0.000 claims description 15
- 230000003137 locomotive Effects 0.000 claims description 14
- 230000000051 modifying Effects 0.000 claims description 3
- 238000000498 ball milling Methods 0.000 description 4
- 238000005516 engineering processes Methods 0.000 description 4
- 230000001276 controlling effects Effects 0.000 description 3
- 239000003345 natural gases Substances 0.000 description 3
- 238000010586 diagrams Methods 0.000 description 2
- 239000011901 water Substances 0.000 description 2
- 241001081830 Degeneriaceae Species 0.000 description 1
- 210000003027 Ear, Inner Anatomy 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reactions Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000006073 displacement reactions Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 239000000463 materials Substances 0.000 description 1
- 238000003701 mechanical milling Methods 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 239000002245 particles Substances 0.000 description 1
- 239000011148 porous materials Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solids Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
- G01N7/16—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by heating the material
Abstract
Description
Technical field
The invention belongs to shale gas technical field, particularly to a kind of shale instrument for measuring gas content.
Background technology
Shale air content is to calculate the key parameter of shale original place tolerance, to shale gassiness evaluation, the pre-measuring tool of resource reserve In shale per ton, contained natural gas is under standard state (0 DEG C, 101.325KPa) to have important meaning, shale air content to refer to Volume, according to occurrence status, shale gas is made up of adsorbed gas, free gas and solution gas part, and adsorbed gas refers to adsorb dry Junket root and the natural gas on clay particle surface, its content by factor controllings such as organic carbon content, pressure, maturity, temperature, Free gas refers to the natural gas being free in intrinsic fracture and intergranular pore, its content mainly by strata pressure, porosity, contain The factor controlling such as gas saturation, temperature, solution gas proportion in shale air content is constituted is the most small, is calculating gassiness Being negligible during amount, the test of shale air content is shale evaluating reservoir, the preferred important experiment in Favorable Areas, method of testing Having desorption method, isothermal adsorption method, well log interpretation method etc., wherein desorption method is the direct method of shale air content test, is also Most common method, isothermal adsorption method and well log interpretation method are the indirect methods of shale air content test.
Being also required to measure residual gas simultaneously for shale, shale residual volume refers to that sample is solving after desorption terminates in cucurbitula still Staying the gas volume in rock core, residual gas measurement has crush method, diagrammatic representation and three kinds of methods of ball-milling method.
After existing shale instrument for measuring gas content the most first measures stripping gas, then through ball milling or broken after, by broken Sample places into measures residual gas in equipment, but the method there is problems in that
1, efficiency is measured low, complex operation, need multiple equipment；
2, in ball milling and shattering process, the residual gas of part may be had to have volatilized, cause measurement result inaccurate.
Summary of the invention
In order to solve the problems referred to above that prior art exists, the invention provides a kind of shale instrument for measuring gas content, operation letter Single, certainty of measurement is high, can complete the measurement of stripping gas and residual gas by continuous print, measure efficiency high, equipment in a set of equipment Mobility is high.
The technical solution adopted in the present invention is:
A kind of shale instrument for measuring gas content, it includes desorption apparatus, insulating box, gas collecting apparatus and locomotive, desorption apparatus, constant temperature Case, gas collecting apparatus are arranged on locomotive, and described desorption apparatus includes solving cucurbitula and rotary electric machine, and described solution cucurbitula is axial Two ends are respectively arranged with support bar and blast pipe, and described support bar is connected with rotary electric machine, and described desorption tank is provided with Charge door, described charge door is provided with sealing lid, and described solution cucurbitula is arranged in insulating box, and described insulating box top is arranged Having removable cover, insulating box is provided with control device and chamber door, described gas collecting apparatus includes thermostatic bath, gas collecting jar with ground-on cover plate and bleed Pipe, gas collecting jar with ground-on cover plate tips upside down in thermostatic bath, and air entraining pipe one end connects with blast pipe, and the air entraining pipe other end is arranged in gas collecting jar with ground-on cover plate.
Universal wheel and pushing hands it is provided with on described locomotive.
Described solution cucurbitula is cylinder-like structure, solves cucurbitula and is placed on sidewards in insulating box, and support bar and blast pipe both pass through perseverance Incubator, blast pipe connects with solving cucurbitula.
Described rotary electric machine is variable-frequency motor, and rotary electric machine is provided with controller, controller is provided with frequency modulation control and Time controls.
Described sealing covers and is provided with sealing ring, and described sealing lid is connected by fixing bolt is fixing with solution cucurbitula.
It is provided with temperature on described control device to control and time control.
It is provided with radiator valve on described thermostatic bath.
Being provided with graduation mark on described gas collecting jar with ground-on cover plate, gas collecting jar with ground-on cover plate end is provided with valve.
The invention have the benefit that
1, simple to operate, when needing the measurement carrying out stripping gas, removable cover and sealing lid are opened, material is put into, then Opening the control device of insulating box, can realize directly perceived measurement by the displacement of volume of gas collecting jar with ground-on cover plate, gas collecting jar with ground-on cover plate end is provided with valve Door, can be used for collecting stripping gas, when residual gas measured by needs, adds abrading-ball, open motor, can complete to measure.
, certainty of measurement high, in a set of equipment, the measurement of stripping gas and residual gas can be completed by continuous print, measure efficiency high, It is rotatable state owing to solving cucurbitula, the measurement of stripping gas can be completed in insulating box, abrading-ball can be added again, rotate desorption Tank completes the measurement of residual gas, simultaneously because solution cucurbitula and gas collecting jar with ground-on cover plate are in temperature constant state, certainty of measurement is high, residual measuring During residual air, ball milling limit, limit can carry out gas collection, it is to avoid can not collecting of the gas of mechanical milling process volatilization, thus improves measurement Precision, also improves measurement efficiency.
, equipment mobility high, desorption apparatus, insulating box, gas collecting apparatus are arranged on locomotive, and locomotive is arranged Having universal wheel and pushing hands, can move whole equipment easily, mobility is high.
Accompanying drawing explanation
Fig. 1 is surface structure schematic diagram of the present invention；
Fig. 2 is the structural representation after the present invention opens chamber door；
Fig. 3 is that the present invention desorbs jar structure schematic diagram.
In figure, 1, desorption apparatus, 2, insulating box, 3, gas collecting apparatus, 4, locomotive, 5, solve cucurbitula, 6, rotate Motor, 7, support bar, 8, blast pipe, 9, charge door, 10, seal lid, 11, removable cover, 12, control device, 13, Chamber door, 14, thermostatic bath, 15, gas collecting jar with ground-on cover plate, 16, air entraining pipe, 17, universal wheel, 18, pushing hands, 19, controller, 20, sealing ring, 21, fixing bolt, 22, radiator valve, 23, valve.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete example, a kind of shale instrument for measuring gas content described in the present patent application is described With explanation in order to the public is better understood from the technology contents of the present invention rather than the restriction to described technology contents, Under principle that is identical or that approximate, the improvement carrying out described processing step, improves including reaction condition, agents useful for same and replaces Change, reach identical purpose, the most all within the present patent application technical scheme required for protection.
As shown in Figure 1, 2, 3, a kind of shale instrument for measuring gas content, it includes desorption apparatus 1, insulating box 2, gas collection Device 3 and locomotive 4, desorption apparatus 1, insulating box 2, gas collecting apparatus 3 be arranged on locomotive 4, described desorption dress Putting 1 to include solving cucurbitula 5 and rotary electric machine 6, the described axial two ends of solution cucurbitula 5 are respectively arranged with support bar 7 and blast pipe 8, Described support bar 7 is connected with rotary electric machine 6, described solution cucurbitula 5 tank body is provided with charge door 9, on described charge door 9 Being provided with sealing lid 10, described solution cucurbitula 5 is arranged in insulating box 2, and described insulating box 2 top is provided with removable cover 11, Being provided with control device 12 and chamber door 13 on insulating box 2, described gas collecting apparatus 3 includes thermostatic bath 14, gas collecting jar with ground-on cover plate 15 With air entraining pipe 16, gas collecting jar with ground-on cover plate 15 tips upside down in thermostatic bath 14, and air entraining pipe 16 one end connects with blast pipe 8, air entraining pipe 16 other ends are arranged in gas collecting jar with ground-on cover plate 15.
Universal wheel 17 and pushing hands 18 it is provided with on described locomotive 4.
Described solution cucurbitula 5 is cylinder-like structure, solves cucurbitula 5 and is placed on sidewards in insulating box 2, support bar 7 and blast pipe 8 both pass through insulating box 2, and blast pipe 8 connects with solving cucurbitula 5.
Described rotary electric machine 6 is variable-frequency motor, rotary electric machine 6 is provided with controller 19, controller 19 is provided with Frequency modulation control and time control.
Being provided with sealing ring 20 on described sealing lid 10, described sealing lid 10 is solid with solution cucurbitula 5 by fixing bolt 21 Fixed connection.
It is provided with temperature on described control device 12 to control and time control.
It is provided with radiator valve 22 on described thermostatic bath 14.
Being provided with graduation mark on described gas collecting jar with ground-on cover plate 15, gas collecting jar with ground-on cover plate 15 end is provided with valve 23.
The shale instrument for measuring gas content of the present invention is when needs measure stripping gas and residual gas simultaneously, by shale samples and abrading-ball It is simultaneously introduced in solution cucurbitula 5, then lid top cover labyrinth 10, tightens fixing bolt 21, be then turned on controlling device 12, open Open radiator valve 22 so that insulating box 2 and thermostatic bath 14 all remain to certain temperature, then start to measure, collection It is provided with graduation mark on inflator 15, the volume of stripping gas, gas collecting jar with ground-on cover plate 15 end can be measured according to the volume arranging water intuitively It is provided with valve 23, can be used for collecting stripping gas.When residual gas measured by needs, open rotary electric machine 6, according to required Parameter regulate controller 19, detect the amount of residual gas equally intuitively also according to the volume arranging water.
Desorption apparatus 1, insulating box 2, gas collecting apparatus 3 are arranged on locomotive 4, locomotive 4 are provided with universal Wheel 17 and pushing hands 18, can move whole measurement equipment easily.
After measuring, can take off sealing lid 10, then rotate and solve cucurbitula 5, sample and abrading-ball are poured out desorption Tank, is poured on insulating box 2, then opens chamber door 13, sample and abrading-ball are cleared, be further continued for the detection of next group.
The present invention is not limited to above-mentioned preferred forms, and anyone can draw other various shapes under the enlightenment of the present invention The product of formula, no matter but in its shape or structure, make any change, every have same as the present application or akin technology Scheme, within all falling within protection scope of the present invention.
Claims (8)
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| CN201610260577.5A CN105910954A (en) | 2016-04-25 | 2016-04-25 | Shale gas content measuring instrument |
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| CN110715879A (en) * | 2019-10-23 | 2020-01-21 | 成都理工大学 | Gas-water distribution-based method for evaluating micro-pore adsorption gas amount of highly-evolved shale reservoir |
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