CN201273902Y - Constant temperature simulating apparatus for coal seam reservoirs - Google Patents
Constant temperature simulating apparatus for coal seam reservoirs Download PDFInfo
- Publication number
- CN201273902Y CN201273902Y CNU2008201225394U CN200820122539U CN201273902Y CN 201273902 Y CN201273902 Y CN 201273902Y CN U2008201225394 U CNU2008201225394 U CN U2008201225394U CN 200820122539 U CN200820122539 U CN 200820122539U CN 201273902 Y CN201273902 Y CN 201273902Y
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- insulation layer
- heat
- desorption
- temperature
- thermal insulation
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Abstract
The utility model relates to a coal core (slack) constant temperature analogue device serviced during the coal seam gas content testing. A working chamber consists of a side thermal insulation layer, a lower thermal insulation layer and an upper thermal insulation layer; a plurality of desorption pot slots are arranged in the working chamber; a heating plate is positioned at the lower part of the desorption pot slot in the working chamber and connected with a control switch in the working chamber; the opening of the desorption pot slot is arranged on the upper thermal insulation layer; a temperature probe passes through the upper thermal insulation layer and is positioned in the working chamber; and the external diameter of the desorption pot body part is matched with the internal diameter of the desorption pot slot. The experimental result shows that the device can successfully accomplish the field coal seam gas desorption experimental work, can provide stable reservoir bed analog temperature, to ensure the testing process to be performed under reservoir bed condition, to provide accurate lost gas calculated data and simultaneously improve the desorption effect, and compared with a conventional heating water bath, the device is more applicable, the temperature is more stable to be controlled, and the device saves more energy.
Description
Technical field
The utility model relates to a kind of coal heart (bits) constant temperature analogue means of serving in the coal-seam gas air content test process.Utilize this device can guarantee that the coal heart (bits) temperature is consistent with reservoir temperature in coal-seam gas air content test process.
Background technology
Coal-seam gas is a kind of gas energy of containing in the stratum, studies, develops, utilizes coal-seam gas that economic construction is had very important meaning.Air content is to estimate a key factor of coal-seam gas enrichment degree, and measuring the somewhere air content accurately is whether the coal-seam gas of assessing this area effectively has the committed step of industrialization process.At present, coal-seam gas air content assay method mainly contains direct method and indirect method both at home and abroad, generally is used for the on-the-spot original place of coal-seam gas preparatory reconnaissance borehole air content and mainly adopts direct method.The theoretical foundation of direct method is, the volume of coal-seam gas in early days in the desorption process release rate of coal-seam gas be directly proportional with the square root of time, the early stage gas that lifting process lost in pit shaft can calculate in view of the above.Total air content then is that early stage loss gas adds stripping gas and residual volume sum.
Experimental temperature is one of influence factor of direct air content method of testing, because the volume of loss gas is to be directly proportional with the square root of time according to the release rate of coal-seam gas in the early stage desorption process to calculate, therefore guaranteeing that the coal heart (bits) carries out desorb under the reservoir state, is the foundation of guaranteeing the measurement data accuracy.The coal heart (bits) rises to the process on ground from the shaft bottom, temperature is incited somebody to action passing in time and is reduced, and therefore need the coal heart (bits) be heated to reservoir temperature by thermostatic equipment, guarantees that it carries out desorb under reservoir temperature, improve the gasmetry accuracy, improve gas desorption efficient simultaneously.
It mainly is that water-bath carries out the constant temperature water bath heating that present domestic on-the-spot air content is tested used thermostatic equipment, owing to be not to design according to the coal-seam gas specialized equipment, can not meet the field experiment requirement fully, and, easily produce water vapour owing to make water as the heat conduction carrier.Heated at constant temperature type water-bath can not satisfy separating the cucurbitula requirement of heating rapidly, and the degree of depth causes the heat-insulation layer cisco unity malfunction less than separating cucurbitula simultaneously, and energy consumption is big and can't guarantee temperature stabilization.Therefore, press for the special electronic observing and controlling reservoir constant temperature analog machine that development one cover meets on-the-spot coal-seam gas test request, with accuracy and the high efficiency of guaranteeing test job.
Summary of the invention
The purpose of this utility model provides the special-purpose constant temperature analog machine of a kind of coal seam reservoirs, this equipment
(1) can satisfy on-the-spot air content test request, the coal heart heated at constant temperature that (bits) separate cucurbitula is provided, guarantee that desorption process carries out smoothly under reservoir temperature;
(2) have whole heat-insulation layer, make that separating cucurbitula is heated fully, reduce energy dissipation to greatest extent, increase work efficiency.
This experimental facilities mainly is made up of side heat-insulation layer, operating room, heating plate, time heat-insulation layer, last heat-insulation layer, work box, temperature probe.Constitute the operating room by side heat-insulation layer, following heat-insulation layer and last heat-insulation layer, be provided with a plurality of cucurbitula slots of separating in the operating room, heating plate is positioned at the operating room and separates cucurbitula slot below and be connected with work box inner control switch, separating cucurbitula slot opening is located on the heat-insulation layer, temperature probe passes heat-insulation layer and is positioned at the operating room, desorb tank part external diameter with separate cucurbitula slot internal diameter and match.
According to the test request and the well site environmental baseline at coal-seam gas scene, this device temperature test specification is 0～40 ℃, and precision is ± 0.5 ℃, and operating voltage is 220V, and power is 300W.Be characterized at the scene can being heated to reservoir temperature rapidly to the rock core that has just salvaged in the air content experiments of measuring process, continue constant temperature then to off-test.This experimental provision principle is to heat by bottom hot plate, by heat conduction the cucurbitula of separating in the operating room is heated, guarantee to separate the interior sample of cucurbitula and reach reservoir temperature, side heat-insulation layer, following heat-insulation layer and last heat-insulation layer maintenance work indoor temperature are constant temperature simultaneously, a plurality of cucurbitula slots of separating are arranged in the operating room, can experimentize simultaneously by a plurality of samples, improved conventional efficient.Can adjust temperature to reservoir temperature by work box inner control switch before the experiment beginning and heat, with the temperature in the temperature probe observation operating room, the cucurbitula of separating that sample will be housed is then put into the work indoor maintaining constant temperature, is used for the air content test simultaneously.
The effect of invention
This reservoir constant temperature analogue means is made according to on-the-spot coal-seam gas air content test request, consider and separate the cucurbitula size, and upper and lower and side all has heat-insulation layer, not only satisfies temperature requirements, and has reached energy-saving effect.
Experimental result shows that this apparatus can be finished the work of on-the-spot coal-seam gas desorption experiment smoothly, and stable reservoir simulation temperature can be provided, and makes test process carry out under reservoir conditions, loses the gas computational data accurately to provide, and improves desorption effect simultaneously.Compare with conventional heated water bath pot, this device is more suitable, and temperature control is more stable, and is simultaneously more energy-conservation.
Description of drawings
Fig. 1 coal seam reservoirs constant temperature analogue means structural representation,
Wherein: heat-insulation layer, 6 work boxs, 7 temperature probes, 8 are separated cucurbitula on 1 side heat-insulation layer, 2 operating rooms, 3 heating plates, the 4 times heat-insulation layers, 5.
Embodiment
Consult Fig. 1.This experimental facilities is mainly separated cucurbitula and is formed by side heat-insulation layer 1, operating room 2, heating plate 3, time heat-insulation layer 4, last heat-insulation layer 5, work box 6, temperature probe 7 and 8; Constitute operating room 2 by side heat-insulation layer 1, following heat-insulation layer 4 and last heat-insulation layer 5, be provided with a plurality of cucurbitula slots 9 of separating in the operating room 2, heating plate 3 is positioned at operating room 2 and separates cucurbitula slot 9 belows and be connected with work box 6 inner control switches, separating cucurbitula slot 9 openings is located on the heat-insulation layer 5, temperature probe 7 passes heat-insulation layer 5 and is positioned at operating room 2, separates cucurbitula 8 tank body part external diameters and separates cucurbitula slot internal diameter and match.
Claims (1)
1. coal seam reservoirs constant temperature analogue means, form by side heat-insulation layer, operating room, heating plate, time heat-insulation layer, last heat-insulation layer, work box, temperature probe, it is characterized in that: constitute the operating room by side heat-insulation layer, following heat-insulation layer and last heat-insulation layer, be provided with a plurality of cucurbitula slots of separating in the operating room, heating plate is positioned at the operating room and separates cucurbitula slot below and be connected with work box inner control switch, separating cucurbitula slot opening is located on the heat-insulation layer, temperature probe passes heat-insulation layer and is positioned at the operating room, desorb tank part external diameter with separate cucurbitula slot internal diameter and match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201225394U CN201273902Y (en) | 2008-09-18 | 2008-09-18 | Constant temperature simulating apparatus for coal seam reservoirs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201225394U CN201273902Y (en) | 2008-09-18 | 2008-09-18 | Constant temperature simulating apparatus for coal seam reservoirs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201273902Y true CN201273902Y (en) | 2009-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201225394U Expired - Lifetime CN201273902Y (en) | 2008-09-18 | 2008-09-18 | Constant temperature simulating apparatus for coal seam reservoirs |
Country Status (1)
| Country | Link |
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| CN (1) | CN201273902Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109428A (en) * | 2010-12-24 | 2011-06-29 | 中国石油天然气股份有限公司 | Portable tester for shale gas and coal bed gas |
| CN106492900A (en) * | 2016-11-07 | 2017-03-15 | 孙嘉玲 | A kind of manufacture method of smooth bath |
| CN107091798A (en) * | 2017-04-21 | 2017-08-25 | 中国矿业大学 | Anxious formula cold and heat succeed each other coalbed methane reservoir transformation analogue means |
| CN107247011A (en) * | 2017-07-26 | 2017-10-13 | 贵州大学 | A kind of Special constant temperature tank |
| CN110448953A (en) * | 2019-06-27 | 2019-11-15 | 广东工业大学 | A kind of garbage degradation experimental provision |
-
2008
- 2008-09-18 CN CNU2008201225394U patent/CN201273902Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109428A (en) * | 2010-12-24 | 2011-06-29 | 中国石油天然气股份有限公司 | Portable tester for shale gas and coal bed gas |
| CN102109428B (en) * | 2010-12-24 | 2012-10-17 | 中国石油天然气股份有限公司 | Portable tester for shale gas and coal bed gas |
| CN106492900A (en) * | 2016-11-07 | 2017-03-15 | 孙嘉玲 | A kind of manufacture method of smooth bath |
| CN107091798A (en) * | 2017-04-21 | 2017-08-25 | 中国矿业大学 | Anxious formula cold and heat succeed each other coalbed methane reservoir transformation analogue means |
| CN107091798B (en) * | 2017-04-21 | 2019-07-09 | 中国矿业大学 | Simulator is transformed in anxious formula hot and cold alternation coalbed methane reservoir |
| CN107247011A (en) * | 2017-07-26 | 2017-10-13 | 贵州大学 | A kind of Special constant temperature tank |
| CN110448953A (en) * | 2019-06-27 | 2019-11-15 | 广东工业大学 | A kind of garbage degradation experimental provision |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |