CN202049143U - Semi-open systemic rock heating simulation device - Google Patents
Semi-open systemic rock heating simulation device Download PDFInfo
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- CN202049143U CN202049143U CN2011201725166U CN201120172516U CN202049143U CN 202049143 U CN202049143 U CN 202049143U CN 2011201725166 U CN2011201725166 U CN 2011201725166U CN 201120172516 U CN201120172516 U CN 201120172516U CN 202049143 U CN202049143 U CN 202049143U
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Abstract
The utility model relate to a semi-open systemic rock heating simulation device which comprises a reaction kettle which is internally provided with an experiment sample, wherein the reaction kettle is arranged in a sealed constant-temperature box and is provided with a temperature controller used for controlling the constant-temperature box to heat; an inlet of a tee valve is conducted into the reaction kettle by a pipeline penetrating through the constant-temperature box; a second opening of the tee valve is connected with a pressure sensor, and a third opening of the tee valve is connected with an inlet of a backpressure valve; the outlet of the backpressure valve is sequentially connected with a chromatograph, a cold trap liquid product collector and a gas product collector; and the inlet and the outlet of the backpressure valve are controlled to conduct by preset pressure of a pressure adjusting pump. The semi-open systemic rock heating simulation device is capable of simulating the process of ''episodic hydrocarbon-expulsion'' of organic matter under geological condition; the temperature programming and heating controlling can be carried out in the experiment process; the pressure at the outlet can be controlled, and the conditions of the temperature and the pressure in the reaction kettle are also controlled so as to simulate the practical hydrocarbon generation condition of hydrocarbon source rocks and synchronously carry out chromatographic analysis on the product.
Description
Technical field
The utility model is the experimental facilities that carries out rock heating simulation about a kind of oil, geology, mining industry field in the laboratory, relates in particular to a kind of semi-open system rock heating analogue means.
Background technology
Organic matter in the formation rock is standing can to produce hydro carbons under the condition of certain temperature and pressure, and organic structure also corresponding variation can take place, and therefore, the heated mould draft experiment just becomes the effective means of research hydrocarbon primary rock producing hydrocarbon.Research to shale gas at present becomes focus, and the heated mould draft experiment can reflect the variation of organic structure and mud shale reservoir properties, and then the gas storage mechanism of research shale.Existing simulation experiment device can be divided into open system, semi-open system and closed system according to system.Closed system and open system are used wider at present, but it can only be controlled temperature of reaction.Semi-open system is near the geology physical condition, hydro carbons is broken through certain pressure and can be discharged, the characteristics that meet " curtain formula row hydrocarbon ", but, semi-open system will be controlled the temperature and pressure in the reactor simultaneously, because top hole pressure control is difficulty, realize also there is not the semi-open system thermal cycle simulation of moulding at present so semi-open system is difficult.
In view of this, the inventor relies on relevant design and manufacturing experience for many years, proposes a kind of semi-open system rock heating analogue means, to overcome the defective of prior art.
The utility model content
The purpose of this utility model is to provide a kind of semi-open system rock heating analogue means, can simulate the process of organic under the geologic condition " curtain formula row hydrocarbon "; Can carry out temperature programme in the experimentation, temperature-rise period is controlled; Can control the reactor top hole pressure, control the situation of reactor temperature and pressure simultaneously in conjunction with experiment purpose, the living hydrocarbon condition of simulation hydrocarbon source rock reality, and can carry out stratographic analysis to product synchronously.
The purpose of this utility model is to realize like this, a kind of semi-open system rock heating analogue means, this heating analogue means comprises a reactor, be placed with laboratory sample in this reactor, this reactor is arranged in the constant temperature oven of a sealing, and described reactor is provided with the temperature controller of a control constant temperature oven heating; The import of a T-valve is passed the pipeline conducting of constant temperature oven in reactor inside by one; Second opening of this T-valve connects a pressure transducer, and the 3rd opening of this T-valve is connected to the import of a check valve, the outlet of this check valve be linked in sequence chromatograph, cold-trap liquid product gatherer and gaseous state product collector; Described check valve import and the preset pressure control conducting of outlet by a pressure regulating pump.
In a better embodiment of the present utility model, described T-valve is provided with the needle-valve that its import of control opens and closes.
In a better embodiment of the present utility model, described pressure regulating pump be can setting program pressure regulating pump, the preset pressure of pressure regulating pump according to requirement of experiment by program setting.
In a better embodiment of the present utility model, described check valve includes the upper and lower valve body that is tightly connected, and upper valve body is provided with pressure regulating cavity, and this pressure regulating cavity is connected with pressure regulating pump by a pressure modulating opening; Corresponding described pressure regulating cavity is provided with a center pit on the following valve body, and this center pit bottom is provided with a third channel, and this third channel is the outlet of check valve; Be provided with a spool that can open and close third channel in the described center pit, corresponding described pressure regulating cavity and center pit are provided with a metallic membrane between described upper and lower valve body, and the top seal of described spool is connected in this metallic membrane; The sidewall of described center pit is provided with first passage, and this first passage is the import of check valve; Also be provided with the second channel of a conducting in the valve body down described in first passage and metallic membrane lower surface.
In a better embodiment of the present utility model, the bottom of described spool is provided with sealing gasket.
In a better embodiment of the present utility model, described laboratory sample is a rock core.
In a better embodiment of the present utility model, described reactor is the alloy reaction still.
In a better embodiment of the present utility model, described pressure transducer is digital pressure transducer.
From the above mentioned, semi-open system rock heating analogue means of the present utility model, be provided with check valve in the reactor outlet, by the preset pressure control check valve import of pressure regulating pump and the conducting of outlet, when reacting kettle inner pressure is higher than setup pressure value, check valve import and outlet conducting, hydro carbons can be discharged; After reacting kettle inner pressure reduced, the import of check valve and port closing made reactor outlet sealing, continue reaction in the reactor and internal pressure is risen; When reacting kettle inner pressure was higher than setup pressure value once more, check valve import and outlet conducting made hydro carbons discharge once more; So circulation is with the process of simulation geologic condition organic down " curtain formula row hydrocarbon "; Simultaneously, be connected with chromatograph, can carry out stratographic analysis to product synchronously in the check valve outlet.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the structural representation of the semi-open system rock heating of the utility model analogue means.
Fig. 2: be the structural representation of pressure regulator valve in the semi-open system rock heating of the utility model analogue means.
Fig. 3: be experimental temperature and the time dependent synoptic diagram of pressure.
Fig. 4: be experimental result gas yield synoptic diagram.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the utility model proposes a kind of semi-open system rock heating analogue means 100, this heating analogue means 100 comprises a reactor 1, and reactor 1 is the alloy reaction still, its volume is 50ml, can bear 800 ℃ of temperature and 70MPa pressure; Be placed with laboratory sample in this reactor 1, described laboratory sample is a rock core, gives birth to reservoir properties variation in the hydrocarbon process to observe mud shale; This reactor 1 is arranged in the constant temperature oven 2 of a sealing, and described constant temperature oven 2 can keep the constant temperature of room temperature to 800 ℃ scope, and described reactor 1 is provided with the digital temperature controller 3 of a control constant temperature oven 2 heating, can realize temperature programme; The import 41 of a T-valve 4 is passed the pipeline conducting of constant temperature oven in reactor 1 inside by one; Second opening 42 of this T-valve 4 connects a pressure transducer 5, pressure transducer 5 is digital pressure transducer, can show pressure, the 3rd opening 43 of this T-valve 4 is connected to the import of a check valve 6, and described T-valve 5 is provided with the needle-valve 44 that its import of control opens and closes; The outlet of this check valve 6 be linked in sequence chromatograph 8, cold-trap liquid product gatherer 9 and gaseous state product collector 10, gaseous products gatherer 10 can adopt the draining collector; Described check valve 6 imports and the preset pressure control conducting of outlet by a pressure regulating pump 7.In the present embodiment, described pressure regulating pump 7 is the pressure regulating pump of energy setting program, and by program setting, that is: preset pressure can be provided with different force value in the different time periods according to the experiment needs to the preset pressure of pressure regulating pump according to requirement of experiment.
During experiment rock sample is put into reactor 1, set the force value of check valve 6 by pressure regulating pump 7; Set the heating schedule of constant temperature oven 2.The heating schedule of the force value of check valve 6 and constant temperature oven 2 can be according to content setting shown in the table 1 (but do not show to exceed with this, can change as required); Open T-valve 4 and begin experiment, when reactor 1 internal pressure is higher than setup pressure value, check valve 6 imports and outlet conducting, hydro carbons can be discharged; After reactor 1 internal pressure reduced, the import of check valve 6 and port closing made reactor outlet sealing, continue reaction in the reactor 1 and internal pressure is risen; When reactor 1 internal pressure is higher than setup pressure value once more, check valve 6 imports with export and conducting, hydro carbons is discharged; So circulation is with the process of simulation geologic condition organic down " curtain formula row hydrocarbon "; The hydrocarbon product of discharging is analyzed through chromatograph 8, and cold-trap liquid product gatherer 9 is collected liquid product and gaseous products and quantitative test respectively with gaseous products gatherer 10.
Table 1:
| Time (h) | ?0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Temperature (℃) | ?330 | 390 | 390 | 390 | 450 | 450 | 500 | 560 | 500 | 500 | 450 |
| Pressure (MPa) | ?10 | 13 | 13 | 13 | 15 | 15 | 16.5 | 18.5 | 16.5 | 16.5 | 15 |
Further, as shown in Figure 2, in the present embodiment, described check valve 6 includes the upper valve body 61 that is tightly connected, following valve body 62, and upper valve body is provided with pressure regulating cavity 611, and this pressure regulating cavity 611 is connected with pressure regulating pump 7 by a pressure modulating opening 612; Corresponding described pressure regulating cavity 611 is provided with a center pit 621 on the following valve body 62, and these center pit 621 bottoms are provided with a third channel 622, and this third channel 622 is the outlet of check valve 6; Be provided with a spool 63 that can open and close third channel 622 in the described center pit 621, corresponding described pressure regulating cavity 611 and center pit 621 are provided with a metallic membrane 64 between described upper and lower valve body 61,62, the top seal of described spool 63 is connected in this metallic membrane 64, the bottom of described spool 63 is provided with sealing gasket 65, so that shutoff third channel 622 more closely; The sidewall of described center pit 621 is provided with first passage 623, and this first passage 623 is the import of check valve; In described valve body 62 down, also be provided with a conducting in the second channel 624 of first passage 623 with metallic membrane 64 lower surfaces.
In use, the first passage 623 of check valve 6 is connected with the 3rd opening 43 of T-valve 4, the third channel 622 of check valve 6 be linked in sequence chromatograph 8, cold-trap liquid product gatherer 9 and gaseous state product collector 10; The pressure modulating opening 612 of check valve 6 is connected with pressure regulating pump 7; The pressure regulation program of setting pressure regulating pump is to set preset pressure; When the intake pressure of check valve 6 is lower than set pressure, order about spool 63 bottoms with third channel (that is: check valve outlet) sealing by the effect of metallic membrane 64, at this moment, check valve import and export not conducting.The intake pressure of check valve 6 raises gradually, and act on metallic membrane 64 lower surfaces by second channel 624, when the intake pressure of check valve 6 during greater than set pressure, act on the pressure of the pressure of metallic membrane 64 lower surfaces greater than its upper surface, metallic membrane 64 moves up under action of pressure, drives simultaneously on the spool 63 to move, at this moment, third channel is opened in the spool bottom, and gas is flowed out through center pit 621, third channel 622 by first passage 623.When the intake pressure of check valve 6 reduced gradually and is lower than set pressure, metallic membrane 64 moved down under action of pressure, drove spool 63 simultaneously and moved down, and spool is again with third channel 622 sealings.
Semi-open system rock heating analogue means of the present utility model can carry out temperature programme in experimentation, temperature-rise period is controlled; Can control the reactor top hole pressure, control the situation of reactor temperature and pressure simultaneously in conjunction with experiment purpose, the living hydrocarbon condition of simulation hydrocarbon source rock reality, and can carry out stratographic analysis to product synchronously.
The beneficial effects of the utility model are:
1) experiment condition is semi-open system, can certain back pressure pressure be set in outlet, the control reacting kettle inner pressure, and can change simulation " curtain formula row hydrocarbon " process as required at any time.
2) can the realization response temperature in the kettle and the synchro control of pressure.
3) laboratory sample is a rock core, can observe mud shale and give birth to reservoir properties variation in the hydrocarbon process.
4) experimental product can directly connect chromatograph and carries out Synchronization Analysis.
5) can carry out temperature programme in the experimentation, temperature-rise period is controlled; Can control top hole pressure, control the situation of reactor temperature pressure simultaneously, the living hydrocarbon condition of simulation hydrocarbon source rock reality in conjunction with experiment purpose.
The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (8)
1. a semi-open system rock heats analogue means, it is characterized in that: this heating analogue means comprises a reactor, be placed with laboratory sample in this reactor, this reactor is arranged in the constant temperature oven of a sealing, and described reactor is provided with the temperature controller of a control constant temperature oven heating; The import of a T-valve is passed the pipeline conducting of constant temperature oven in reactor inside by one; Second opening of this T-valve connects a pressure transducer, and the 3rd opening of this T-valve is connected to the import of a check valve, the outlet of this check valve be linked in sequence chromatograph, cold-trap liquid product gatherer and gaseous state product collector; Described check valve import and the preset pressure control conducting of outlet by a pressure regulating pump.
2. semi-open system rock heating analogue means as claimed in claim 1, it is characterized in that: described T-valve is provided with the needle-valve that its import of control opens and closes.
3. semi-open system rock heating analogue means as claimed in claim 1 is characterized in that: described pressure regulating pump is pressure regulating pump that can setting program, the preset pressure of pressure regulating pump according to requirement of experiment by program setting.
4. semi-open system rock heating analogue means as claimed in claim 1, it is characterized in that: described check valve includes the upper and lower valve body that is tightly connected, and upper valve body is provided with pressure regulating cavity, and this pressure regulating cavity is connected with pressure regulating pump by a pressure modulating opening; Corresponding described pressure regulating cavity is provided with a center pit on the following valve body, and this center pit bottom is provided with a third channel, and this third channel is the outlet of check valve; Be provided with a spool that can open and close third channel in the described center pit, corresponding described pressure regulating cavity and center pit are provided with a metallic membrane between described upper and lower valve body, and the top seal of described spool is connected in this metallic membrane; The sidewall of described center pit is provided with first passage, and this first passage is the import of check valve; Also be provided with the second channel of a conducting in the valve body down described in first passage and metallic membrane lower surface.
5. semi-open system rock heating analogue means as claimed in claim 4, it is characterized in that: the bottom of described spool is provided with sealing gasket.
6. semi-open system rock heating analogue means as claimed in claim 1, it is characterized in that: described laboratory sample is a rock core.
7. semi-open system rock heating analogue means as claimed in claim 1, it is characterized in that: described reactor is the alloy reaction still.
8. semi-open system rock heating analogue means as claimed in claim 1, it is characterized in that: described pressure transducer is digital pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201725166U CN202049143U (en) | 2011-05-26 | 2011-05-26 | Semi-open systemic rock heating simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201725166U CN202049143U (en) | 2011-05-26 | 2011-05-26 | Semi-open systemic rock heating simulation device |
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| Publication Number | Publication Date |
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| CN202049143U true CN202049143U (en) | 2011-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201725166U Expired - Lifetime CN202049143U (en) | 2011-05-26 | 2011-05-26 | Semi-open systemic rock heating simulation device |
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| CN (1) | CN202049143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323287A (en) * | 2011-05-26 | 2012-01-18 | 中国石油天然气股份有限公司 | Semi-open system rock heating analogue means |
| CN104153770B (en) * | 2014-07-08 | 2016-08-31 | 中国石油天然气股份有限公司 | The analogy method of a kind of mud shale hydrocarbon and organic pore evolution and system |
-
2011
- 2011-05-26 CN CN2011201725166U patent/CN202049143U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102323287A (en) * | 2011-05-26 | 2012-01-18 | 中国石油天然气股份有限公司 | Semi-open system rock heating analogue means |
| CN104153770B (en) * | 2014-07-08 | 2016-08-31 | 中国石油天然气股份有限公司 | The analogy method of a kind of mud shale hydrocarbon and organic pore evolution and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
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| CX01 | Expiry of patent term |