CN105910954A - Shale gas content measuring instrument - Google Patents

Shale gas content measuring instrument Download PDF

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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
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CN
China
Prior art keywords
gas
shale
gas collecting
instrument
desorption
Prior art date
Application number
CN201610260577.5A
Other languages
Chinese (zh)
Inventor
徐浩
周文
Original Assignee
成都理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都理工大学 filed Critical 成都理工大学
Priority to CN201610260577.5A priority Critical patent/CN105910954A/en
Publication of CN105910954A publication Critical patent/CN105910954A/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/14Analysing 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
    • G01N7/16Analysing 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

The invention relates to a shale gas content measuring instrument, and belongs to the technical field of shale gas. The shale gas content measuring instrument includes a desorption device, a constant temperature box, a gas collecting device and a mobile vehicle; the desorption device, the constant temperature box and the gas collecting device are all arranged on the mobile vehicle; the desorption device includes a desorption tank and a rotating motor; the two axial ends of the desorption tank are respectively provided with a supporting rod and an exhaust pipe; the supporting rod is connected with the rotating motor; a desorption tank body is provided with a feed inlet; the feed inlet is provided with a sealing cover; the desorption tank is arranged in the constant temperature box; the top of the constant temperature box is provided with a mobile cover; the constant temperature box is provided with a control device and a box door; the gas collecting device comprises a constant temperature bath, a gas collecting cylinder and a gas guide pipe; the gas collecting cylinder is buckled in the constant temperature bath in an inverted manner; one end of the gas guide pipe communicates with the exhaust pipe, and the other end of the gas guide pipe is arranged in the gas collecting cylinder. The shale gas content measuring instrument has the advantages of simple operation and high measuring accuracy, and measurement of desorbed gas and residual gas can be continuously completed in one set of device; and the measuring efficiency is high, and the equipment maneuverability is high.

Description

A kind of shale instrument for measuring gas content

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)

1. a shale instrument for measuring gas content, it is characterised in that: include desorption apparatus (1), insulating box (2), gas collecting apparatus (3) With locomotive (4), desorption apparatus (1), insulating box (2), gas collecting apparatus (3) be arranged on locomotive (4), institute Stating desorption apparatus (1) to include solving cucurbitula (5) and rotary electric machine (6), described solution cucurbitula (5) is axially respectively provided with at two ends Having support bar (7) and blast pipe (8), described support bar (7) is connected with rotary electric machine (6), described solution cucurbitula (5) Being provided with charge door (9) on tank body, described charge door (9) is provided with sealing lid (10), described solution cucurbitula (5) sets Putting in insulating box (2), described insulating box (2) top is provided with removable cover (11), and insulating box is provided with control on (2) Device processed (12) and chamber door (13), described gas collecting apparatus (3) includes thermostatic bath (14), gas collecting jar with ground-on cover plate (15) and draws Tracheae (16), gas collecting jar with ground-on cover plate (15) tips upside down in thermostatic bath (14), and air entraining pipe (16) one end is with blast pipe (8) even Logical, air entraining pipe (16) other end is arranged in gas collecting jar with ground-on cover plate (15).
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: described locomotive (4) is upper to be arranged There are universal wheel (17) and pushing hands (18).
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: described solution cucurbitula (5) is cylinder Shape structure, solves cucurbitula (5) and is placed on sidewards in insulating box (2), and support bar (7) and blast pipe (8) both pass through constant temperature Case (2), blast pipe (8) connects with solving cucurbitula (5).
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: described rotary electric machine (6) is for becoming Frequently motor, rotary electric machine (6) is provided with controller (19), and controller (19) is provided with frequency modulation control and time control System.
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: the described lid (10) that seals above is arranged Sealing ring (20), the described lid (10) that seals is had to be connected by fixing bolt (21) and solution cucurbitula (5) are fixing.
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: set on described control device (12) It is equipped with temperature to control and time control.
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: described thermostatic bath sets on (14) It is equipped with radiator valve (22).
A kind of shale instrument for measuring gas content the most according to claim 1, it is characterised in that: described gas collecting jar with ground-on cover plate (15) is upper to be arranged Graduation mark, gas collecting jar with ground-on cover plate (15) end is had to be provided with valve (23).
CN201610260577.5A 2016-04-25 2016-04-25 Shale gas content measuring instrument CN105910954A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109342264A (en) * 2018-12-06 2019-02-15 燕山大学 A kind of coal bed gas and shale Gas content desorption measuring device and method
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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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109342264A (en) * 2018-12-06 2019-02-15 燕山大学 A kind of coal bed gas and shale Gas content desorption measuring device and method
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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