CN203148810U - Device for representing fluidity of reservoir crude oil indoors - Google Patents
Device for representing fluidity of reservoir crude oil indoors Download PDFInfo
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- CN203148810U CN203148810U CN 201320176330 CN201320176330U CN203148810U CN 203148810 U CN203148810 U CN 203148810U CN 201320176330 CN201320176330 CN 201320176330 CN 201320176330 U CN201320176330 U CN 201320176330U CN 203148810 U CN203148810 U CN 203148810U
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- crude oil
- fluidity
- cylindrical shell
- viscosity
- rock core
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Abstract
The utility model discloses a device for representing the fluidity of reservoir crude oil indoors. The device comprises a barrel body and a rock core holder, wherein the top of the barrel body is matched with an upper cover; a gas interface is formed in the upper cover; the bottom of the barrel body is communicated with the top of the rock core holder through a pipeline; and a filtrate outlet is formed in the bottom of the rock core holder. The device can be used for visually representing the fluidity of the crude oil with different viscosities under reservoir conditions. The device can be used for not only objectively representing the fluidity of the crude oil under reservoir conditions, but also facilitating the comparison of viscosity-reducing capabilities of different viscosity reducers to the same crude oil; and the device is very suitable for representing the fluidity of the crude oil indoors and comparing the viscosity-reducing effects of the different viscosity reducers on the crude oil.
Description
Technical field
The utility model relates to a kind of device of indoor characterize reservoir crude oil fluidity.
Background technology
Crude oil fluidity is the focus that the oil development field is paid close attention to as one of physical property of crude oil for a long time always.The main method that characterizes crude oil fluidity is the test viscosity of crude, that is: liquid is when mobile, and the character that rubs in its intermolecular generation is called the stickiness of liquid, and the size of viscosity is represented with viscosity.At present, the method of measuring viscosity of crude mainly is to utilize all kinds of viscosity meters, but the viscosity numerical value that viscosity meter is measured normally characterizes the size of fluid viscosity, the flowability that can not truly reflect fluid, especially for reservoir crude oil, viscosity numerical value more can not reflect the mobility status of fluid under reservoir conditions.
The utility model content
The purpose of this utility model provides a kind of device of indoor characterize reservoir crude oil fluidity, and this device can be by metering by the sign of time realization to crude oil fluidity.
The device of a kind of indoor characterize reservoir crude oil fluidity provided by the utility model, it comprises cylindrical shell and core holding unit;
The top of described cylindrical shell cooperates with loam cake, covers on described and is provided with gas interface;
The bottom of described cylindrical shell is connected with the top of described core holding unit by a pipeline;
The bottom of described core holding unit is provided with filtrate outlet.
In the device of above-mentioned indoor characterize reservoir crude oil fluidity, the sidewall of described cylindrical shell is provided with the solution inlet.
In the device of above-mentioned indoor characterize reservoir crude oil fluidity, be provided with piston in the described cylindrical shell, described piston can be along the axially-movable of described cylindrical shell.
In the device of above-mentioned indoor characterize reservoir crude oil fluidity, may be selected to be between described cylindrical shell and the described loam cake and be threaded.
In the device of above-mentioned indoor characterize reservoir crude oil fluidity, described cylindrical shell can be the cylinder bodily form.
When using device characterization reservoir crude oil fluidity of the present utility model, can carry out according to following step:
1) crude oil is injected in the described cylindrical shell;
2) gases at high pressure are fed gas from described gas interface in described cylindrical shell, then gas-powered crude oil enters in the described core holding unit;
3) from the crude oil of described filtrate outlet collection through described core holding unit, and the time of metering crude stream warp.
In the step 1), described crude oil injects in the described cylindrical shell by described solution inlet.
Step 2) in, thereby gas is to enter described core holding unit by oppressing described piston driving crude oil; The pressure that can control in the described cylindrical shell is 1.5～3.5MPa.
The device that the utility model provides can intuitively reflect the flowability of different viscosities crude oil under reservoir condition.The device of the indoor sign crude oil fluidity that use the utility model provides, can objectively respond the crude oil fluidity under the reservoir condition, can conveniently contrast different viscosity reducers again to the viscosity reduction ability with a kind of crude oil, be fit to very much the viscosity reducing effect of indoor sign crude oil fluidity and contrast different crude oils viscosity reducer.
Description of drawings
Fig. 1 is the structural representation of the device of the indoor characterize reservoir crude oil fluidity of the utility model.
Each mark is as follows among the figure: 1 gas interface, 2 loam cakes, 3 crude oil, 4 pistons, 5 solution inlets, 6 pipelines, 7 core holding units, 8 filtrate outlets, 9 cylindrical tubes, 10 mouth of pipe I, 11 mouth of pipe II.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further, but the utility model is not limited to following examples.
The device of embodiment 1, indoor characterize reservoir crude oil fluidity
As shown in Figure 1, the device of the indoor characterize reservoir crude oil fluidity that provides of the utility model chamber comprises 1 cylindrical tube 9 and core holding unit 7; The top of this cylindrical tube 9 and loam cake 2 be by being threaded, and be provided with gas interface 1 at loam cake 2, is used for feeding gases in cylindrical tube 9.The bottom of this cylindrical tube 9 is connected with the top of core holding unit 7 by 1 pipeline 6, and the mouth of pipe I 10 on this pipeline 6 and cylindrical tube 9 bottoms is connected with mouth of pipe II 11 on core holding unit 7 tops.Be provided with filtrate outlet 8 in the bottom of core holding unit 7, be used for collecting crude oil.
For the ease of the injection of crude oil, as shown in Figure 1, at the sidewall of cylindrical tube 9 solution inlet 5 is set.In order to drive crude oil flowing in rock core, in cylindrical tube 9, in the top of solution inlet 5 piston 4 is set, this piston 4 can be along the axially-movable of cylindrical tube 9.
Core holding unit 7 can adopt existing clamper, as TY-ZC type core holding unit, specification: 25*25-300, the rubber sleeve clamping that it is inner the simulation rock core.Reservoir condition and the suitable simulation rock core of geologic feature compacting according to the oil field, the simulation rock core parameter that present embodiment provides is: diameter: 2.5cm, high: 7cm, permeability: 2500mD, factor of porosity 30%, the simulation rock core adopts the compacting of 80～100 order silica sands, and rock core makes its pore surface have lipophilicity through the silicone oil processing in manufacturing process.But the cavity injecting gas between core holding unit 7 sidewalls and rubber sleeve so that the simulation rock core is added confined pressure, does not flow along the rock core outer wall to guarantee crude oil.
(1) at first will simulate rock core (diameter: 2.5cm, length: 7cm, permeability: 2500md, factor of porosity: 30%) pack in the core holding unit 7, add confined pressure 3.0MPa;
(2) inject crude oil 3 300ml altogether in the high pressure sample pond by solution inlet 5, viscosity of crude is 150mPa.s, treat that above-mentioned crude oil adds after, close the solution inlet;
(3) controllable pressure source (high-pressure nitrogen bottle) linked to each other with high pressure nitrogen interface 1, logical nitrogen pressure, controlled pressure is about 2.5MPa, and driven plunger 4 makes crude oil 3 by the simulation rock core in the core holding unit 7;
(4) 8 recovery are passed through the crude oil of rock cores and are recorded whole crude oil and spend the required time of rock core at the filtrate outlet place, and measurement result demonstration viscosity number is that the crude stream of 150mPa.s is 49s through the rock core required time;
(5) repeat above-mentioned steps (1)-(4), difference is respectively the crude oil of different viscosities to be put into the high pressure sample pond, and viscosity of crude is respectively 250mPa.s, 350mPa.s, 450mPa.s and 550mPa.s.Recording above-mentioned crude stream was respectively 65 seconds, 76 seconds, 92 seconds and 109 seconds through the time of rock core.By writing time, above-mentioned steps has characterized the fluid ability of crude oil more intuitively.
(1) chooses different viscosity reducers 1 respectively
#(A1204), 2
#(31626), 3
#(RH327), 4
#(CJN10-19-2), 5
#(CJN14) and 6
#(DJH-1); Mix, stir according to the ratio of 1:1 with crude oil (viscosity number is 550mPa.s) again;
(2) will simulate rock core (diameter: 2.5cm, length: 7cm, permeability: 2500md, factor of porosity: 30%) pack in the core holding unit 7, add confined pressure 3.0MPa;
(2) in the high pressure sample pond, inject the adding 1 of passing through step (1) by solution inlet 5
#The crude oil 300ml of viscosity reducer, treat that above-mentioned crude oil adds after, close the solution inlet;
(3) controllable pressure source (high-pressure nitrogen bottle) linked to each other with high pressure nitrogen interface 1, logical nitrogen pressure, controlled pressure is about 2.5MPa, and driven plunger 4 makes crude oil by simulating rock core;
(4) 8 times of reclaiming the crude oil of process rock core and recording whole crude oil process rock cores at the filtrate outlet place.Measurement result shows adding 1
#The crude oil of viscosity reducer is 23 seconds through the required time of rock core.
(5) repeat above-mentioned steps (1)-(4), difference is will add 2 respectively
#, 3
#, 4
#, 5
#, and 6
#The crude oil of viscosity reducer is put into the high pressure sample pond, and record above-mentioned crude stream and be respectively 17 seconds through the time of rock core, 25 seconds, 27 seconds 19 seconds.Illustrate 2
#Viscosity reducer is stronger to the viscosity reduction ability of crude oil, and above-mentioned steps has characterized the height through crude oil flow ability after the viscosity reduction equally more intuitively.
Claims (5)
1. the device of an indoor characterize reservoir crude oil fluidity, it is characterized in that: described device comprises cylindrical shell and core holding unit;
The top of described cylindrical shell cooperates with loam cake, covers on described and is provided with gas interface;
The bottom of described cylindrical shell is connected with the top of described core holding unit by a pipeline;
The bottom of described core holding unit is provided with filtrate outlet.
2. device according to claim 1, it is characterized in that: the sidewall of described cylindrical shell is provided with the solution inlet.
3. device according to claim 1 and 2, it is characterized in that: be provided with piston in the described cylindrical shell, described piston can be along the axially-movable of described cylindrical shell.
4. device according to claim 1 and 2 is characterized in that: between described cylindrical shell and the described loam cake for being threaded.
5. device according to claim 1 and 2, it is characterized in that: described cylindrical shell is the cylinder bodily form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176330 CN203148810U (en) | 2013-04-10 | 2013-04-10 | Device for representing fluidity of reservoir crude oil indoors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320176330 CN203148810U (en) | 2013-04-10 | 2013-04-10 | Device for representing fluidity of reservoir crude oil indoors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148810U true CN203148810U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320176330 Expired - Lifetime CN203148810U (en) | 2013-04-10 | 2013-04-10 | Device for representing fluidity of reservoir crude oil indoors |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148810U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452550A (en) * | 2013-09-12 | 2013-12-18 | 中国石油大学(华东) | Viscosity reducing effect evaluation method and device of heavy oil viscosity reducer under stratum seepage condition |
| CN114509369A (en) * | 2021-12-27 | 2022-05-17 | 中国石油大学(华东) | Device and method for evaluating viscosity reducing effect of water-soluble viscous oil viscosity reducer |
-
2013
- 2013-04-10 CN CN 201320176330 patent/CN203148810U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452550A (en) * | 2013-09-12 | 2013-12-18 | 中国石油大学(华东) | Viscosity reducing effect evaluation method and device of heavy oil viscosity reducer under stratum seepage condition |
| CN103452550B (en) * | 2013-09-12 | 2016-03-16 | 中国石油大学(华东) | Heavy crude thinner viscosity reducing effect evaluation method and device under a kind of stratum filtration condition |
| CN114509369A (en) * | 2021-12-27 | 2022-05-17 | 中国石油大学(华东) | Device and method for evaluating viscosity reducing effect of water-soluble viscous oil viscosity reducer |
| CN114509369B (en) * | 2021-12-27 | 2023-12-05 | 中国石油大学(华东) | Device and method for evaluating viscosity reducing effect of water-soluble thickened oil viscosity reducing agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC RESEARCH INSTITUTE Co.,Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |