CN203519464U - Measurement device for contact angle in high-temperature high-pressure capillary tube - Google Patents
Measurement device for contact angle in high-temperature high-pressure capillary tube Download PDFInfo
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- CN203519464U CN203519464U CN201320576877.6U CN201320576877U CN203519464U CN 203519464 U CN203519464 U CN 203519464U CN 201320576877 U CN201320576877 U CN 201320576877U CN 203519464 U CN203519464 U CN 203519464U
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- steel body
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- kapillary
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Abstract
The utility model discloses a measurement device for a contact angle in a high-temperature high-pressure capillary tube. The measurement device comprises a steel body, a capillary tube and a second fluid injection pump, wherein a through hole is formed in the steel body; observation windows are sealed at the two ends of the through hole respectively; one end of the capillary tube penetrates in the through hole of the steel body, and the other end is connected with a first fluid injection pump through a first fluid injection pipeline; the second fluid injection pump is connected with a second fluid injection pipeline; the second fluid injection pipeline stretches into the through hole of the steel body. According to the measurement device for a contact angle in a high-temperature high-pressure capillary tube disclosed by the utility model, the measurement gases are of abundant varieties, the capillary tubes with different inner diameters can be replaced freely, and an aim of measuring the contact angle of gas-liquid meniscus in the oil reservoir condition is achieved.
Description
Technical field
The utility model is relevant for a kind of measurement mechanism of contact angle, especially relevant for the measurement mechanism of contact angle in the High Temperature High Pressure kapillary in a kind of reservoir physics experiment.
Background technology
In oil development, improve in oil recovery scientific experiment, the wetting state of rock-fluid system is that the macroscopic view of pore media Micro Heterogeneous wetting characteristics on average characterizes.Blowhole surface has the tendency of certain fluid of wetting preference, and this has just caused macroscopical wetting state of various different situations.Wetting state is being controlled capillary pressure, relative wetting behavior, oil displacement efficiency and ultimate recovery factor.And the size that the major parameter that characterizes wetting state is contact angle.
In prior art, the measuring method of wetting state mainly contains puts sessile drop method and lift-slab.These the two kinds methods of measuring contact angles, are all under condition of normal pressure, and gas medium is air, and temperature is under room temperature condition, to measure liquid, rock/boatswain chair, the triangular angle of gas, are contact angle.These methods can only meet the test under simulated normal pressure, macro-scale, the single condition of gas medium kind, and under actual reservoir condition, rock core internal void is of a size of micron order, and internal pressure is high pressure-temperature condition, and internal gas medium kind is more.Therefore, there is larger limitation in existing contact angle method of testing, cannot meet current CO
2mixed phase drives the test request of mechanism research.
Therefore, be necessary to provide a kind of new proving installation, overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide the measurement mechanism of contact angle in a kind of High Temperature High Pressure kapillary, and the measurement gas abundant species of this measurement mechanism can be changed arbitrarily the kapillary of different inner diameters, has realized the contact angle of measuring gas-liquid meniscus under reservoir condition.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides apparatus for measuring contact angle in a kind of High Temperature High Pressure kapillary, and in described High Temperature High Pressure kapillary, apparatus for measuring contact angle comprises:
Steel body, it has through hole, and the two ends of described through hole are sealed with respectively view window;
Kapillary, its one end is located in the through hole of described steel body, and its other end connects a first fluid injection pump by first fluid flow in pipes;
Second fluid injection pump, it is connected with second fluid flow in pipes, and described second fluid flow in pipes stretches in the through hole of described steel body.
In a preferred embodiment, in described High Temperature High Pressure kapillary, apparatus for measuring contact angle also comprises vacuum pump, and described vacuum pump is connected with vacuum pipe, and described vacuum pipe stretches in the through hole of described steel body.
In a preferred embodiment, described outside capillaceous is folded with capillary tube holder, and described capillary tube holder has two clamping walls that be arranged in parallel, and described two clamping walls are folded in respectively described both sides capillaceous.
In a preferred embodiment, one end that described capillary tube holder stretches into described steel body through hole is connected with end cap.
In a preferred embodiment, the outer cover of described capillary tube holder is provided with fixing sleeve, and insert in described steel body one end of described fixing sleeve.
In a preferred embodiment, described fixing sleeve inserts between one end of described steel body and described steel body and is folded with packing ring.
In a preferred embodiment, described steel body is arranged in an air bath.
In a preferred embodiment, one end of described steel body is provided with image collecting device, and described image collecting device is relative with the view window of described steel body one end.
In a preferred embodiment, the other end of described steel body is provided with light source, and described light source is relative with the view window of the described steel body other end.
In High Temperature High Pressure kapillary of the present utility model, feature and the advantage of the measurement mechanism of contact angle are: this measurement mechanism can need to be changed the gaseous species in second fluid injection pump according to experiment, and can change arbitrarily the kapillary of different inner diameters, capillary diameter can reach micron order, its measurement range is wide, effectively having simulated the object of measuring gas-liquid meniscus contact angle under various reservoir conditions, is CO
2the popularization that mixed phase drives technology provides effective research.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the front view of the measurement mechanism of contact angle in High Temperature High Pressure kapillary of the present utility model.
Fig. 2 is the kapillary sectional view of the measurement mechanism of contact angle in High Temperature High Pressure kapillary of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides apparatus for measuring contact angle in a kind of High Temperature High Pressure kapillary, and it comprises steel body 1 and kapillary 2.Wherein: steel body 1 has through hole 11, the two ends of described through hole 11 are sealed with respectively view window 12; Kapillary 2 one end are located in the through hole 11 of described steel body 1, and its other end connects a first fluid injection pump 3 by first fluid flow in pipes 31; Second fluid injection pump 4 is connected with second fluid flow in pipes 41, and described second fluid flow in pipes 41 stretches in the through hole 11 of described steel body 1.
Specifically, steel body 1 is cylinder barrel shaped substantially, its middle part offers through hole 11, the two ends of steel body 1 are respectively equipped with a transparent windows 12, this view window 12 is for making operating personnel from the situation in steel body 1 visual observation steel body 1 through hole 11, view window 12 sealings are arranged on through hole 11 two ends of steel body 1, thereby through hole 11 is enclosed and becomes an annular seal space.
In the utility model, as shown in Figure 2, the outside of kapillary 2 is folded with capillary tube holder 5, and this capillary tube holder 5 has two clamping walls that be arranged in parallel 51, two clamping walls 51 are folded in respectively the relative both sides of kapillary 2, and this capillary tube holder 5 is for fixed capillary 2.In addition, two clamping wall 51 sandwicheds of this capillary tube holder 5 in the through hole 11 that kapillary 2 stretches into steel body 1, and its threaded one end that stretches into through hole 11 is connected with end cap 52.
Further, the outer cover of capillary tube holder 5 is provided with fixing sleeve 6, and insert in the upper end sidewall of steel body 1 one end of fixing sleeve 6, between one end of its insertion steel body 1 and steel body 1, is folded with packing ring 61.This fixing sleeve 6 is for fixed capillary clamper 5, and packing ring 61 is for sealing the gap between fixing sleeve 6 and steel body 1.
Second fluid injection pump 4 is arranged on the lower end of steel body 1, it is connected with a second fluid flow in pipes 41, this second fluid flow in pipes 41 penetrates in the through hole 11 of steel body 1 from the lower end sidewall of steel body 1, thereby the gas medium in second fluid injection pump 4 will inject in the through hole 11 of steel body 1 by second fluid flow in pipes 41.
In this High Temperature High Pressure kapillary, the process of the contact angle of apparatus for measuring contact angle measurement gas-liquid meniscus is as follows: first, by first fluid injection pump 3 to the interior injection fluid of kapillary 2, this fluid injects in the capillary channel 21 of kapillary 2 by first fluid flow in pipes 31, now, the interior injecting gas of through hole 11 by from second fluid injection pump 4 to steel body 1, this gas injects the through hole 11 of steel body 1 by second fluid flow in pipes 41.Wherein, the hydrodynamic pressure P1 in the capillary channel 21 that should inject a little more than first fluid injection pump 3 kapillary 2 by second fluid injection pump 4 to the pressure P 2 of steel body 1 through hole 11 interior injecting gas, and in one embodiment, P2 is more than or equal to P1 * 1.5%.Finally, slowly increase the injection pressure P1 of first fluid injection pump 3, until the interior gas-liquid meniscus that occurs of the capillary channel 21 of kapillary 2.
Apparatus for measuring contact angle in High Temperature High Pressure kapillary of the present utility model, can need to change the gaseous species in second fluid injection pump 4 according to experiment, and can change arbitrarily the kapillary 2 of different inner diameters, kapillary 2 diameters can reach micron order, its measurement range is wide, effectively having simulated the object of measuring gas-liquid meniscus contact angle under various reservoir conditions, is CO
2the popularization that mixed phase drives technology provides effective research.
According to an embodiment of the present utility model, in described High Temperature High Pressure kapillary, apparatus for measuring contact angle also comprises vacuum pump 7, vacuum pump 7 is arranged on the below of steel body 1, and it is connected with a vacuum pipe 71, and described vacuum pipe 71 stretches in the through hole 11 of described steel body 1.At first fluid injection pump 3, to kapillary 2, interior injection fluid and second fluid injection pump 4 are to before the interior injecting gas of steel body 1 through hole 11, and the through hole 11 by 7 pairs of steel bodies 1 of this vacuum pump vacuumizes processing, so that the data that experiment records are more accurate.
Further, described steel body 1 is arranged in an air bath 8.Air bath 8, for steel body 1 is carried out to heat treated, tests it at the temperature of simulating oil deposit condition.
According to an embodiment of the present utility model, one end of described steel body 1 is provided with image collecting device 9, and described image collecting device 9 is relative with the view window 12 of described steel body 1 one end.Image collecting device 9 sees through view window 12 and gathers the image of kapillary 2 interior liquid levels and this image is recorded and shown by computing machine 91.
Further, the other end of described steel body 1 is provided with light source 10, and described light source 10 is relative with the view window 12 of described steel body 1 other end.Light source 10 is used to image collecting device 9 that light source is provided, and makes the image of its collection more clear.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various changes or modification and not depart from spirit and scope of the present utility model the utility model embodiment according to the disclosed content of application documents.
Claims (9)
1. an apparatus for measuring contact angle in High Temperature High Pressure kapillary, is characterized in that, in described High Temperature High Pressure kapillary, apparatus for measuring contact angle comprises:
Steel body, it has through hole, and the two ends of described through hole are sealed with respectively view window;
Kapillary, its one end is located in the through hole of described steel body, and its other end connects a first fluid injection pump by first fluid flow in pipes;
Second fluid injection pump, it is connected with second fluid flow in pipes, and described second fluid flow in pipes stretches in the through hole of described steel body.
2. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 1, it is characterized in that, in described High Temperature High Pressure kapillary, apparatus for measuring contact angle also comprises vacuum pump, and described vacuum pump is connected with vacuum pipe, and described vacuum pipe stretches in the through hole of described steel body.
3. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 1, it is characterized in that, described outside capillaceous is folded with capillary tube holder, and described capillary tube holder has two clamping walls that be arranged in parallel, and described two clamping walls are folded in respectively described both sides capillaceous.
4. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 3, is characterized in that, one end that described capillary tube holder stretches into described steel body through hole is connected with end cap.
5. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 3, is characterized in that, the outer cover of described capillary tube holder is provided with fixing sleeve, and insert in described steel body one end of described fixing sleeve.
6. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 5, is characterized in that, described fixing sleeve inserts between one end of described steel body and described steel body and is folded with packing ring.
7. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 1, is characterized in that, described steel body is arranged in an air bath.
8. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 1, is characterized in that, one end of described steel body is provided with image collecting device, and described image collecting device is relative with the view window of described steel body one end.
9. apparatus for measuring contact angle in High Temperature High Pressure kapillary as claimed in claim 8, is characterized in that, the other end of described steel body is provided with light source, and described light source is relative with the view window of the described steel body other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576877.6U CN203519464U (en) | 2013-09-17 | 2013-09-17 | Measurement device for contact angle in high-temperature high-pressure capillary tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576877.6U CN203519464U (en) | 2013-09-17 | 2013-09-17 | Measurement device for contact angle in high-temperature high-pressure capillary tube |
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|---|---|
| CN203519464U true CN203519464U (en) | 2014-04-02 |
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| CN201320576877.6U Withdrawn - After Issue CN203519464U (en) | 2013-09-17 | 2013-09-17 | Measurement device for contact angle in high-temperature high-pressure capillary tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499517A (en) * | 2013-09-17 | 2014-01-08 | 中国石油天然气股份有限公司 | Device and method for measuring internal contact angle of high-temperature and high-pressure capillary tube |
-
2013
- 2013-09-17 CN CN201320576877.6U patent/CN203519464U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499517A (en) * | 2013-09-17 | 2014-01-08 | 中国石油天然气股份有限公司 | Device and method for measuring internal contact angle of high-temperature and high-pressure capillary tube |
| CN103499517B (en) * | 2013-09-17 | 2015-07-08 | 中国石油天然气股份有限公司 | Device and method for measuring internal contact angle of high-temperature and high-pressure capillary tube |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20150708 |
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| RGAV | Abandon patent right to avoid regrant |