CN205038118U - Utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas - Google Patents
Utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas Download PDFInfo
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- CN205038118U CN205038118U CN201520737100.2U CN201520737100U CN205038118U CN 205038118 U CN205038118 U CN 205038118U CN 201520737100 U CN201520737100 U CN 201520737100U CN 205038118 U CN205038118 U CN 205038118U
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- gas
- rock core
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Abstract
The utility model relates to an experimental apparatus of high -speed gas injection in -process gas loss volume is measured with the jumbo size rock core. An utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas, includes the rock core holder, annotates the gas production device, annotates water sampling device and pressure device, notes gas production device set up the top at the rock core holder, the notes water sampling device set up around the rock core holder, pressure device set up in the upper and lower of rock core holder and left side. The utility model discloses an utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas, simple structure, easy to operate, can the spot test different core gas loss volume under different gas injection speed and constantly changeable gas injection speed to and the gas loss volume of same rock core under different injection production cycle.
Description
Technical field
The utility model relates to a kind of experimental provision utilizing large scale rock core to measure gas loss amount in high speed gas injection process.
Background technology
Lose the device of gas in traditional mensuration sandstone high speed gas injection process, usually adopt the planar gas injection of column type, device is made up of a gas injection device, little rock core and collection gas device usually.This device can only measure in high speed gas injection process whether lose gas in sandstone, cannot provide the concrete loss amount in high speed gas injection process.
Therefore, design a kind of Novel experiment device can measuring gas loss amount concrete in sand body high speed gas injection process, large scale rock core particularly can be utilized to carry out the experimental provision of lab simulation, and the high-strength injection for heterogeneous body sandstone underground gas storage adopts research far reaching significance.
Utility model content
Gas is lost in order to accurately measure in the high speed gas injection process of heterogeneous body sandstone underground natural gas storage, the utility model provides a kind of Novel experiment device, this instrument adopts point type to note the mode of adopting, gas injection and gas production test is carried out in rectangular parallelepiped large scale rock core, and in device surrounding, high precision gas-water separation apparatus and measurement mechanism are installed, utilize gas to enter rock core and flow out water in the difference of rock core and saturation water rock core variable quantity Measurement accuracy heterogeneous body sandstone high speed gas injection process in lose gas flow.
The technical solution adopted in the utility model is: a kind of large scale rock core that utilizes measures the device losing gas in high speed gas injection process, comprises core holding unit, note gas producing device, note water sampling device and pressue device; Described note gas producing device is arranged on the top of core holding unit; Described note water sampling device is arranged on the surrounding of core holding unit; Described pressue device is arranged on the upper and lower of core holding unit and left side.
Described core holding unit is six square-column-shaped symmetrical structures; Upper and lower adopts steel bushing and clamping rubber composition, and fluted in clamping rubber, groove size is consistent with rock core shape, for clamping rock core; Top is provided with note gas production conduit mouth; Front and rear portions respectively has steel plate to be connected with steel bushing bolt, leaves note adopt water conduit mouth in portion on the lower side; Secretion resistance to compression resin between steel plate and rock core;
Left part is become with pressurizing piston ancestral by steel plate, and steel plate is connected with steel bushing bolt, leaves adopt water conduit mouth for note in portion on the lower side;
Right part is made up of with fixing rubber steel plate, and steel plate is connected with steel bushing bolt, is stiff end, leaves adopt water conduit mouth for note in portion on the lower side.
Described note gas producing device is made up of air pump, intermediate receptacle, the micro-measuring apparatus of gas, the micro-measuring apparatus of gas-liquid and pressure transducer; Air pump is connected by pipeline with the note gas production conduit mouth of core holding unit successively with intermediate receptacle, intermediate receptacle, and centre is provided with valve; The micro-measuring apparatus of gas, the micro-measuring apparatus of gas-liquid are all connected with intermediate receptacle; Pressure transducer is connected with between intermediate receptacle and core holding unit.
Described note water sampling device is made up of water pump, gas-liquid separation device, gas-liquid container, the micro-measuring apparatus of gas-liquid; Water pump is adopted water conduit mouth with gas-liquid container, gas-liquid container with the note of core holding unit and is connected successively by pipeline, and centre is provided with valve; Gas-liquid separation device is connected with gas-liquid container; The micro-measuring apparatus of gas-liquid is connected with gas-liquid separation device.
The beneficial effect losing the device of gas in large scale rock core measurement high speed gas injection process that utilizes of the present utility model is: 1, can measure the gas loss amount of same rock core under different injection-production cycle;
2, can gripping different core sample, be convenient for measuring same core or the different core gas loss amount under the gas injection speed of different high speed gas injection speed and constantly change; 3, structure is simple, and easy to operate, conventional efficient is high.
Accompanying drawing explanation
Fig. 1 is that the large scale rock core that utilizes of the present utility model measures the one-piece construction figure losing the device of gas in high speed gas injection process;
Fig. 2 is the decomposition chart of core holding unit;
Fig. 3 is the sectional view of core holding unit;
Fig. 4 is the right view (removing the steel plate of right part and fixing rubber) of core holding unit;
Fig. 5 is the vertical view (removing steel bushing and the clamping rubber on top) of core holding unit;
Fig. 6 is the graph of a relation of gas surplus amount and injection-production cycle in rock core; In figure: horizontal ordinate-injection-production cycle, gas surplus amount in ordinate-rock core.
Embodiment
As shown in Figure 1, the large scale rock core that utilizes of the present utility model measures the device losing gas in high speed gas injection process, comprises core holding unit 10, note gas producing device, note water sampling device and pressue device 5; 5 note gas producing devices are arranged on the top of core holding unit 10, are made up of air pump 1, intermediate receptacle 2, the micro-measuring apparatus of gas 3, the micro-measuring apparatus 8 of gas-liquid and pressure transducer 4; Air pump 1 is connected by pipeline with the note gas production conduit mouth 107 of core holding unit 10 successively with intermediate receptacle 2, intermediate receptacle 2, and centre is provided with valve 11; The micro-measuring apparatus 8 of the micro-measuring apparatus of gas 3, gas-liquid is all connected with intermediate receptacle 2; Pressure transducer 4 is connected with between intermediate receptacle 2 and core holding unit 10.
The front, rear, left and right of core holding unit 10 are provided with note water sampling device.Note water sampling device is made up of water pump 6, gas-liquid separation device 9, gas-liquid container 7, the micro-measuring apparatus 8 of gas-liquid; Water pump 6 is adopted water conduit mouth (110,111,115,118) with gas-liquid container 7, gas-liquid container 7 with the note of core holding unit 10 and is connected successively by pipeline, and centre is provided with valve; Gas-liquid separation device 9 is connected with gas-liquid container 7; The micro-measuring apparatus 8 of gas-liquid is connected with gas-liquid separation device 9.
Above core holding unit 10, below and left side be respectively equipped with pressue device 5 and valve, and the effect of pressue device is fixing rock core.
As shown in Figure 2, core holding unit 10 is six square-column-shaped symmetrical structures; Upper and lower adopts upper steel bushing 101, lower steel bushing 102, upper clamping rubber 103 and lower clamping rubber 104 to form, and fluted in upper and lower clamping rubber, groove size is consistent with rock core 105 shape, for clamping rock core; Top is provided with note gas production conduit mouth 107, for connecting note gas producing device.
As shown in Fig. 2,3 and 4, front and rear portions respectively has front spring 108 to be connected with upper and lower steel bushing bolt 114 respectively with rear steel plate 109.Before fore portion on the lower side leaves, note adopts water conduit mouth 110; The portion on the lower side at rear portion leaves rear note and adopts water conduit mouth 111.Secretion resistance to compression resin 106 between forward and backward steel plate and rock core 105.
As shown in Fig. 2,3 and 5, left part is made up of left plate 112 and pressurizing piston 113, and left plate 112 is connected with bolt 114 with upper and lower steel bushing 101,102 respectively, leaves left note adopt water conduit mouth 115 in portion on the lower side.
As shown in Fig. 2,3 and 5, right part is made up of right steel plate 116 and fixing rubber 117, and right steel plate 116 is connected with bolt 114 with upper and lower steel bushing 101,102 respectively, is stiff end, leaves right note adopt water conduit mouth 118 in portion on the lower side.
The large scale rock core that utilizes of the present utility model measures the device losing gas in high speed gas injection process, and what measure that loss gas adopts is inject and the material balance principle at displacement two ends, and namely injected gas total amount is the summation of gas in extraction gas total amount and rock under uniform pressure.Test core sample used representative, select bedding change obvious and the region that lamina is thinner as far as possible.In order to make gas freely advance by leaps and bounds in rock core, the shape of experiment rock core should be rectangular parallelepiped.Because rock core fastener ratio is easier to operation, therefore, the gas loss amount of core under different gas injection speed and the continuous gas injection speed changed that energy Fast Measurement is different, also can measure the gas loss amount of same rock core under different injection-production cycle.
Choose sandstone to core sample one piece of M1, be prepared into the fracture test sample that length is 30cm × 30cm × 6cm, put into the upper and lower steel bushing of core holding unit, forward and backward steel plate and right steel plate carry out assembling to be fixed, resistance to compression resin is filled in forward and backward space, and pressurize with bottom pressue device, finally assemble left plate, and it is fixing to carry out pressurization with pressue device.Before gas injection, first carry out washing oil operation, and washed rock core saturation water; During gas injection, simulation well point injection-production method, when in four note water sampling points, some when there is gas, valve-off, to the last a closedown, record gas injection rate is Q
g, and the gas flow Q in gas-liquid collecting device
g1, Q
g2, Q
g3, Q
g4then actual gas memory space Q in rock core
gi=Q
g– (Q
g1+ Q
g2+ Q
g3+ Q
g4); During gas production, the gas production mouth above rock core will carry out gas production outward, until moisture reaches 98% in gas; When measuring loss gas, the gas using micro-meter Accurate Determining rock core to discharge and liquid volume Q
go, Q
wo, the gas volume recorded is the volume under same pressure.Rock core internal losses tolerance can be expressed as: Q
g1s=q
gi-q
go, in formula: Q
g1sfor loss tolerance, m
3; Q
gifor injecting gas total amount, m
3; Q
gofor Exhaust Gas total amount, m
3.Under multiple injection-production cycle, residual gas in rock core can be obtained and namely lose the relation of gas and injection-production cycle, as shown in Figure 6.
The large scale rock core that utilizes of the present utility model measures the device losing gas in high speed gas injection process, core holding unit surrounding arranges four water filling ports, it is equally also water delivering orifice, utilize gas-liquid gatherer storage of liquids and gas, and the difference of the accurate-metering note amount of adopting, utilize the pressure differential before and after clamper and corresponding gas flow and amount of liquid to change, record the gas flow be trapped in rock core.Particularly point out, core holding unit is made up of up, down, left, right, before and after six part, is convenient to dismounting and assembling; Its middle and upper part, front and rear part, right part are stiff end, and top, left part and bottom are provided with pressue device, for fixing and sealing, improve stability and closure; Upper and lower clamping rubber can change size according to rock core size, and note water gathering tube mouth is positioned at rock core surrounding portion on the lower side, reduces to adopt water yield error.
Claims (4)
1. utilize large scale rock core to measure the device losing gas in high speed gas injection process, it is characterized in that: comprise core holding unit, note gas producing device, note water sampling device and pressue device; Described note gas producing device is arranged on the top of core holding unit; Described note water sampling device is arranged on the surrounding of core holding unit; Described pressue device is arranged on the upper and lower of core holding unit and left side.
2. the large scale rock core that utilizes according to claim 1 measures the device losing gas in high speed gas injection process, it is characterized in that: described core holding unit is six square-column-shaped symmetrical structures; Upper and lower adopts steel bushing and clamping rubber composition, and fluted in clamping rubber, groove size is consistent with rock core shape, for clamping rock core; Top is provided with note gas production conduit mouth; Front and rear portions respectively has steel plate to be connected with steel bushing bolt, leaves note adopt water conduit mouth in portion on the lower side; Secretion resistance to compression resin between steel plate and rock core;
Left part is become with pressurizing piston ancestral by steel plate, and steel plate is connected with steel bushing bolt, leaves adopt water conduit mouth for note in portion on the lower side;
Right part is made up of with fixing rubber steel plate, and steel plate is connected with steel bushing bolt, is stiff end, leaves adopt water conduit mouth for note in portion on the lower side.
3. the large scale rock core that utilizes according to claim 2 measures the device losing gas in high speed gas injection process, it is characterized in that: described note gas producing device is made up of air pump, intermediate receptacle, the micro-measuring apparatus of gas, the micro-measuring apparatus of gas-liquid and pressure transducer; Air pump is connected by pipeline with the note gas production conduit mouth of core holding unit successively with intermediate receptacle, intermediate receptacle, and centre is provided with valve; The micro-measuring apparatus of gas, the micro-measuring apparatus of gas-liquid are all connected with intermediate receptacle; Pressure transducer is connected with between intermediate receptacle and core holding unit.
4. the large scale rock core that utilizes according to claim 2 measures the device losing gas in high speed gas injection process, it is characterized in that: described note water sampling device is made up of water pump, gas-liquid separation device, gas-liquid container, the micro-measuring apparatus of gas-liquid; Water pump is adopted water conduit mouth with gas-liquid container, gas-liquid container with the note of core holding unit and is connected successively by pipeline, and centre is provided with valve; Gas-liquid separation device is connected with gas-liquid container; The micro-measuring apparatus of gas-liquid is connected with gas-liquid separation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737100.2U CN205038118U (en) | 2015-09-22 | 2015-09-22 | Utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520737100.2U CN205038118U (en) | 2015-09-22 | 2015-09-22 | Utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas |
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| Publication Number | Publication Date |
|---|---|
| CN205038118U true CN205038118U (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520737100.2U Withdrawn - After Issue CN205038118U (en) | 2015-09-22 | 2015-09-22 | Utilize jumbo size rock core to measure device of high -speed gas injection in -process loss gas |
Country Status (1)
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|---|---|
| CN (1) | CN205038118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158116A (en) * | 2015-09-22 | 2015-12-16 | 山东科技大学 | Device for measuring lost gas in high-speed gas injection process by means of large-size cores |
-
2015
- 2015-09-22 CN CN201520737100.2U patent/CN205038118U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158116A (en) * | 2015-09-22 | 2015-12-16 | 山东科技大学 | Device for measuring lost gas in high-speed gas injection process by means of large-size cores |
| CN105158116B (en) * | 2015-09-22 | 2018-05-18 | 山东科技大学 | It is a kind of that the device that gas is lost in high speed gas injection process is measured using large scale rock core |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20180518 |