CN212275747U - Rock core water saturation establishing device - Google Patents
Rock core water saturation establishing device Download PDFInfo
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- CN212275747U CN212275747U CN202020465764.9U CN202020465764U CN212275747U CN 212275747 U CN212275747 U CN 212275747U CN 202020465764 U CN202020465764 U CN 202020465764U CN 212275747 U CN212275747 U CN 212275747U
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Abstract
The utility model provides a rock core water saturation establishing device, which comprises a high-pressure air source storage tank, a multi-way valve, a steam generator, a first hygrometer, a temperature control rock core holder, a heating device, a confining pressure pump, a back pressure pump, a second hygrometer and a flowmeter; the high-pressure gas source storage tank is connected with an inlet of the multi-way valve through a pipeline, an outlet of the multi-way valve is connected with an inlet of a steam generator through a pipeline, an outlet of the steam generator is connected with an inlet of the temperature control core holder through a first hygrometer through a pipeline, an outlet of the temperature control core holder is connected with an inlet of a second hygrometer through a back pressure valve through a pipeline, and an outlet of the second hygrometer is connected with an inlet of a flowmeter through a pipeline; the multi-way valve is connected with a pressure gauge, the confining pressure pump is used for applying confining pressure to the temperature control core holder, the back pressure pump is used for providing power for the back pressure valve, and the heating device is used for heating the temperature control core holder. The device can quickly, accurately and truly simulate the establishment of the water saturation of the stratum core.
Description
Technical Field
The utility model relates to a rock core water saturation establishes device belongs to the indoor thing mould technical field among the oil recovery engineering.
Background
For the water saturation of the core, formation water is typically directly pumped into the core to saturate it. But for a dense reservoir core, the method has long saturation time and partial pores of the core are difficult to saturate.
Therefore, it is an urgent technical problem in the art to provide a core water saturation establishing device which can rapidly, accurately and truly simulate the stratum.
SUMMERY OF THE UTILITY MODEL
In order to solve the above disadvantages and shortcomings, an object of the present invention is to provide a rock core water saturation degree establishing device. The utility model provides a device can be fast, accurate and truly simulate the establishment of the rock core water saturation in stratum.
In order to achieve the above object, the utility model provides a rock core water saturation establishes device, wherein, rock core water saturation establishes device includes high-pressure gas source storage tank, multi-way valve, steam generator, first hygrometer, control by temperature change rock core holder, heating device, enclosing pressure pump, back pressure pump, second hygrometer and flowmeter;
the high-pressure gas source storage tank is connected with an inlet of the multi-way valve through a first valve by a pipeline, an outlet of the multi-way valve is connected with an inlet of the steam generator through a second valve by a pipeline, an outlet of the steam generator is connected with an inlet of the temperature control core holder through a first hygrometer by a pipeline, an outlet of the temperature control core holder is connected with an inlet of the second hygrometer through a back pressure valve by a pipeline, and an outlet of the second hygrometer is connected with an inlet of the flowmeter by a pipeline;
the confining pressure pump is used for applying confining pressure to the temperature control core holder, the back pressure pump is used for providing power for the back pressure valve, and the heating device is used for heating the temperature control core holder.
In the above device, preferably, the multi-way valve is connected with a pressure gauge.
In the above-described apparatus, preferably, the multi-way valve is a six-way valve.
In the above apparatus, preferably, the outlet of the steam generator is provided with a third valve.
Preferably, the device further comprises a dehumidifier, an outlet of the multi-way valve is connected with an inlet of the dehumidifier through a pipeline, and an outlet of the dehumidifier is connected with an inlet of the steam generator through a second valve through a pipeline.
Preferably, the device further comprises a dehumidifier, an outlet of the multi-way valve is connected with an inlet of the dehumidifier through a pipeline, and an outlet of the dehumidifier is connected with an inlet of the steam generator through a second valve through a pipeline;
the multi-way valve is a six-way valve.
Preferably, the device further comprises a dehumidifier, an outlet of the multi-way valve is connected with an inlet of the dehumidifier through a pipeline, and an outlet of the dehumidifier is connected with an inlet of the steam generator through a second valve through a pipeline;
and the outlet of the steam generator is provided with a third valve.
Preferably, the device further comprises a waste liquid storage tank, and the outlet of the flow meter is connected with the inlet of the waste liquid storage tank through a pipeline.
Preferably, the device further comprises a dehumidifier and a waste liquid storage tank, wherein an outlet of the multi-way valve is connected with an inlet of the dehumidifier through a pipeline, and an outlet of the dehumidifier is connected with an inlet of the steam generator through a second valve through a pipeline;
and the outlet of the flowmeter is connected with the inlet of the waste liquid storage tank through a pipeline.
In the device, the high-pressure air source storage tank, the multi-way valve, the dehumidifier, the steam generator, the first hygrometer, the temperature-controlled core holder, the heating device, the confining pressure pump, the back-pressure pump, the second hygrometer, the flowmeter, the waste liquid storage tank and the like are conventional devices in the field, and all the devices can be obtained through commercial purchase.
The high-pressure gas source storage tank is used for containing nitrogen or natural gas without water so as to bring water vapor into the rock core; the multi-way valve can be used for connecting a device without an air source or a displacement liquid or a pressure gauge and the like; the pressure gauge is used for monitoring the pressure condition of the device; the dehumidifier is used for removing water vapor in gas (high-pressure gas source); the first hygrometer and the second hygrometer are both used for measuring the humidity of the gas; the steam generator is used for producing water vapor; the confining pressure pump is used for applying confining pressure to the temperature control core holder; the heating device is used for heating the temperature control core holder; the temperature control rock core holder is used for fixing a target rock core; the back pressure valve is used for providing back pressure for the temperature control rock core holder; the back pressure pump is used for providing power for the back pressure valve; the flowmeter is used for testing the flow of the fluid; the waste liquid storage tank is used for recovering residual fluid.
Rock core water saturation establish device can be applicable to the technology of multiple difference and carry out the rock core water saturation and establish, it is further right the utility model discloses a device explains, the utility model discloses still provide and use the utility model discloses a rock core water saturation establishes device establishes the technology (steam saturation method) of rock core water saturation, the technology includes following step:
firstly, determining the water saturation of a target to be established;
secondly, after oil washing and salt washing are carried out on the rock core, the dry weight and the pore volume of the rock core are accurately measured;
measuring the density of the water phase in the steam generator accurately;
fourthly, loading the target rock core into the temperature control rock core holder, and raising the temperature of the temperature control rock core holder to a certain temperature;
driving water vapor in a vapor generator into a rock core by using a high-pressure gas source, such as high-pressure nitrogen, respectively and immediately monitoring gas humidity and flow change by using a first hygrometer, a second hygrometer and a flow meter, and calculating the water saturation of the rock core according to the humidity difference measured by the first hygrometer and the second hygrometer and flow data measured by the flow meter until the target saturation required to be established is reached;
closing the rock core with the established water saturation for later use.
The utility model discloses it is right above the rising temperature of control by temperature change rock core holder in the process step of establishing rock core water saturation person does not do the concrete requirement, and technical personnel in the field can rise control by temperature change rock core holder to the target temperature according to on-the-spot actual need.
The utility model provides a this rock core water saturation establishing device can be fast, accurate and truly simulate the establishment of the rock core water saturation in stratum.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a core water saturation establishing apparatus according to an embodiment of the present invention.
The main reference numbers illustrate:
1. a high-pressure gas source storage tank;
2. a six-way valve;
3. a dehumidifier;
4. a steam generator;
5. a first hygrometer;
6. a temperature-controlled core holder;
7. a heating device;
8. a confining pressure pump;
9. a back pressure pump;
10. a second hygrometer;
11. a flow meter;
12. a waste liquid storage tank;
13. a first valve;
14. a second valve;
15. a third valve;
16. a back pressure valve;
17. and a pressure gauge.
Detailed Description
For a clearer understanding of the technical features, objects and advantages of the present invention, the technical solutions of the present invention will now be described in detail with reference to the following specific embodiments, but the present invention is not limited to the applicable scope.
It should be noted that the term "comprises/comprising" and any variations thereof in the description and claims hereof, and in the drawings described above, is intended to cover non-exclusive inclusions, such as processes, methods, systems, products, or apparatus that comprise a list of steps, components, or elements, but not necessarily limited to those steps, components, or elements expressly listed, and may include other steps, components, or elements not expressly listed or inherent to such processes, methods, systems, products, or apparatus.
Furthermore, the terms "disposed," "connected," and the like are to be construed broadly. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
The embodiment provides a core water saturation establishing device, a structural schematic diagram of which is shown in fig. 1, and as can be seen from fig. 1, the device comprises:
the system comprises a high-pressure gas source storage tank 1, a six-way valve 2, a dehumidifier 3, a steam generator 4, a first hygrometer 5, a temperature control core holder 6, a heating device 7, a confining pressure pump 8, a back pressure pump 9, a second hygrometer 10, a flowmeter 11 and a waste liquid storage tank 12;
the high-pressure gas source storage tank 1 is connected with an inlet of the six-way valve 2 through a first valve 13 through a pipeline, an outlet of the six-way valve 2 is connected with an inlet of the dehumidifier 3 through a pipeline, an outlet of the dehumidifier 3 is connected with an inlet of the steam generator 4 through a second valve 14 through a pipeline, an outlet of the steam generator 4 is connected with an inlet of the temperature-controlled core holder 6 through a first hygrometer 5 through a pipeline, an outlet of the temperature-controlled core holder 6 is connected with an inlet of the second hygrometer 10 through a back-pressure valve 16 through a pipeline, an outlet of the second hygrometer 10 is connected with an inlet of the flowmeter 11 through a pipeline, and an outlet of the flowmeter 11 is connected with an inlet of the waste liquid storage tank 12 through a pipeline;
the outlet of the steam generator 4 is provided with a third valve 15, the six-way valve 2 is connected with a pressure gauge 17, the confining pressure pump 8 is used for applying confining pressure on the temperature control core holder 6, the back pressure pump 9 is used for providing power for the back pressure valve 16, and the heating device 7 is used for heating the temperature control core holder 6.
The process for establishing the water saturation of the rock core by using the rock core water saturation establishing device provided by the embodiment 1 comprises the following specific steps:
firstly, determining the water saturation of a target to be established;
secondly, after oil washing and salt washing are carried out on the rock core, the dry weight and the pore volume of the rock core are accurately measured;
measuring the density of the water phase accurately;
fourthly, loading the target rock core into the temperature control rock core holder, and raising the temperature of the temperature control rock core holder to a certain temperature;
driving water vapor in a vapor generator into a rock core by using a high-pressure gas source, such as high-pressure nitrogen, respectively and immediately monitoring gas humidity and flow change by using a first hygrometer, a second hygrometer and a flow meter, and calculating the water saturation of the rock core according to the humidity difference measured by the first hygrometer and the second hygrometer and flow data measured by the flow meter until the target saturation required to be established is reached;
closing the rock core with the established water saturation for later use.
To sum up, the utility model provides a this rock core water saturation establishes device can be fast, accurate and really simulate the establishment of the rock core water saturation of stratum.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent.
Claims (10)
1. The rock core water saturation establishing device is characterized by comprising a high-pressure air source storage tank, a multi-way valve, a steam generator, a first hygrometer, a temperature control rock core holder, a heating device, a confining pressure pump, a back pressure pump, a second hygrometer and a flowmeter;
the high-pressure gas source storage tank is connected with an inlet of the multi-way valve through a first valve by a pipeline, an outlet of the multi-way valve is connected with an inlet of the steam generator through a second valve by a pipeline, an outlet of the steam generator is connected with an inlet of the temperature control core holder through a first hygrometer by a pipeline, an outlet of the temperature control core holder is connected with an inlet of the second hygrometer through a back pressure valve by a pipeline, and an outlet of the second hygrometer is connected with an inlet of the flowmeter by a pipeline;
the confining pressure pump is used for applying confining pressure to the temperature control core holder, the back pressure pump is used for providing power for the back pressure valve, and the heating device is used for heating the temperature control core holder.
2. The apparatus of claim 1, wherein a pressure gauge is connected to the multi-way valve.
3. The device of claim 1 or 2, wherein the multi-way valve is a six-way valve.
4. An arrangement according to claim 1 or 2, characterized in that the outlet of the steam generator is provided with a third valve.
5. The apparatus of claim 3, wherein the outlet of the steam generator is provided with a third valve.
6. The apparatus of claim 1 or 2, further comprising a dehumidifier, wherein an outlet of the multi-way valve is connected to an inlet of the dehumidifier by a conduit, and wherein an outlet of the dehumidifier is connected to an inlet of the steam generator by a conduit via a second valve.
7. The apparatus of claim 1 or 2, further comprising a dehumidifier, an outlet of the multi-way valve being connected to an inlet of the dehumidifier by a conduit, an outlet of the dehumidifier being connected to an inlet of the steam generator by a conduit via a second valve;
the multi-way valve is a six-way valve.
8. The apparatus of claim 1 or 2, further comprising a dehumidifier, an outlet of the multi-way valve being connected to an inlet of the dehumidifier by a conduit, an outlet of the dehumidifier being connected to an inlet of the steam generator by a conduit via a second valve;
and the outlet of the steam generator is provided with a third valve.
9. The apparatus of claim 1 or 2, further comprising a waste reservoir, wherein the outlet of the flow meter is connected to the inlet of the waste reservoir by a conduit.
10. The apparatus of claim 1 or 2, further comprising a dehumidifier and a waste liquid tank, wherein an outlet of the multi-way valve is connected with an inlet of the dehumidifier through a pipeline, and an outlet of the dehumidifier is connected with an inlet of the steam generator through a second valve through a pipeline;
and the outlet of the flowmeter is connected with the inlet of the waste liquid storage tank through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020465764.9U CN212275747U (en) | 2020-04-02 | 2020-04-02 | Rock core water saturation establishing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020465764.9U CN212275747U (en) | 2020-04-02 | 2020-04-02 | Rock core water saturation establishing device |
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| CN212275747U true CN212275747U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092337A (en) * | 2021-04-08 | 2021-07-09 | 西南石油大学 | Method for establishing initial water saturation of compact rock core under in-situ condition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113092337A (en) * | 2021-04-08 | 2021-07-09 | 西南石油大学 | Method for establishing initial water saturation of compact rock core under in-situ condition |
| CN113092337B (en) * | 2021-04-08 | 2022-01-28 | 西南石油大学 | Method for establishing initial water saturation of compact rock core under in-situ condition |
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