CN206627408U - A kind of gas detection experiment apparatus of the flowable oil saturation of rock core - Google Patents
A kind of gas detection experiment apparatus of the flowable oil saturation of rock core Download PDFInfo
- Publication number
- CN206627408U CN206627408U CN201720423952.3U CN201720423952U CN206627408U CN 206627408 U CN206627408 U CN 206627408U CN 201720423952 U CN201720423952 U CN 201720423952U CN 206627408 U CN206627408 U CN 206627408U
- Authority
- CN
- China
- Prior art keywords
- holding unit
- rock core
- pipeline
- gas
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model belongs to oil field development technical field, specifically, it is related to a kind of gas detection experiment apparatus of the flowable oil saturation of rock core, including rock core, core holding unit, insulating box, confined pressure pipeline, admission line, balancing gate pit, pressurized pipeline, booster pump, air accumulator, flow line and graduated cylinder, rock core is placed in core holding unit, core holding unit is placed in insulating box, confined pressure pipeline one end is connected with core holding unit, the confined pressure pipeline other end is connected with booster pump, admission line one end is connected with booster pump, the admission line other end is connected with balancing gate pit, it is connected between balancing gate pit and core holding unit by pressurized pipeline, flow line is additionally provided with core holding unit, booster pump is connected with air accumulator, flow line is connected with graduated cylinder.The experimental provision can not only measure core oil saturation, can also measure the flowable oil saturation of rock core.
Description
Technical field
A kind of gas detection experiment apparatus of the flowable oil saturation of rock core is the utility model is related to, belongs to oil field development technology
Field.
Background technology
Oil saturation refers to the saturation degree of rock interior crude oil under reservoir condition.Oil saturation determination experiment technology is
The important content of oil-gas reservoir experimental study.Accurately and rapidly measure oil saturation is the key that fine and close oil carries out reserves calculating.
Presently the most reliable oil saturation determination techniques are pressurize sealed coring method.But pressurize sealed coring method is expensive, skill
Art difficulty is high, is not appropriate for laboratory use.
Oil saturation is measured using mercury injection method in laboratory at present, its value subtracts constraint water saturation for a hundred per cent
Degree, that is, it is oil saturation to think the flowable saturation degree in net pay zone.But for fine and close oil, due to pore structure, oil
For water with factors such as layers, the oil saturation obtained with mercury injection method is not flowable saturation degree, and mercury injection method time of measuring is grown, real
Test that error is also larger, the flowable oil saturation of rock core that can not be under accurate measurement to Different Strata pressure.
Utility model content
The utility model provides a kind of gas detection experiment apparatus of the flowable oil saturation of rock core, it is intended that solution
Certainly the above-mentioned problems in the prior art.
The technical solution of the utility model is as follows：
The utility model provides a kind of gas detection experiment apparatus of the flowable oil saturation of rock core, including rock core, rock core
Clamper, insulating box, confined pressure pipeline, admission line, balancing gate pit, pressurized pipeline, booster pump, air accumulator, flow line and graduated cylinder,
Rock core is placed in core holding unit, and core holding unit is placed in insulating box, and confined pressure pipeline one end is connected with core holding unit, confined pressure
The pipeline other end is connected with booster pump, and admission line one end is connected with booster pump, and the admission line other end is connected with balancing gate pit, pressure
It is connected between power room and core holding unit by pressurized pipeline, flow line, booster pump and gas storage is additionally provided with core holding unit
Tank is connected, and flow line is connected with graduated cylinder.
In embodiment provided by the utility model, above-mentioned air accumulator is provided with regulating valve, for adjusting going out for air accumulator
Tolerance.
In embodiment provided by the utility model, above-mentioned admission line is sequentially provided with the first lock along gas flow direction
Valve, gas-drying apparatus, check valve and first pressure table.
In embodiment provided by the utility model, above-mentioned confined pressure pipeline is provided with the second gate valve and second pressure gauge.
In embodiment provided by the utility model, above-mentioned pressurized pipeline includes symmetrically arranged first pressurized pipeline and the
Two pressurized pipelines, the first pressurized pipeline are provided with the first stop valve, and the second pressurized pipeline is provided with the second stop valve.
In embodiment provided by the utility model, above-mentioned flow line is provided with the 3rd stop valve.
In embodiment provided by the utility model, above-mentioned gas drier is anhydrous calcium chloride drying bottle.
In embodiment provided by the utility model, the gas in above-mentioned air accumulator is high-purity nitrogen.
The beneficial effects of the utility model are：The utility model is by measuring the rock under certain confined pressure, certain displacement pressure
The rock pore volume and oil pump capacity of the heart, and the crude oil volume that displacement goes out is scaled underground crude oil volume, then calculate rock
The oil saturation of the heart, the oil saturation as flowable oil-containing of the rock core under the confined pressure and displacement pressure used in experiment are satisfied
And degree, therefore, the experimental provision can not only measure the flowable oil saturation of rock core, it can also be used to measure rock core
Porosity, in addition, the experimental provision is contained by flowable under different confined pressures, different displacement pressures of the measurable rock core of booster pump
Oily saturation degree and porosity, and measurement period is short, measurement error is small, is reserves calculating and the subsequent development scheme of fine and close oil reservoir
Design both provides important theoretical parameter.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
The gas detection experiment apparatus structure chart of the flowable oil saturation of Fig. 1 rock cores provided by the utility model.
Shown in figure：The gas detection experiment apparatus of the flowable oil saturation of 100- rock cores；1- rock cores；2- core holding units；
3- insulating boxs；4- confined pressure pipelines；The gate valves of 40- second；42- second pressure gauges；5- admission lines；The gate valves of 50- first；52- gases
Drier；54- check valves；56- first pressure tables；6- balancing gate pits；7- pressurized pipelines；The stop valves of 70- first；72- second ends
Valve；8- booster pumps；9- air accumulators；90- regulating valves；10- graduated cylinders；11- flow lines；The stop valves of 110- the 3rd.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Therefore, below
It is new that the detailed description of embodiment of the present utility model to providing in the accompanying drawings is not intended to limit this claimed practicality
The scope of type, but it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ability
All other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
In description of the present utility model, it is to be understood that the term of indicating position or position relationship is based on accompanying drawing
Shown orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply institute
The equipment or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is on or below second feature
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature the
Directly over two features and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature is special second
Under sign, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level
Highly it is less than second feature.
Embodiment：
As shown in figure 1, present embodiments providing a kind of gas detection experiment apparatus 100 of the flowable oil saturation of rock core, wrap
Include rock core 1, core holding unit 2, insulating box 3, confined pressure pipeline 4, admission line 5, balancing gate pit 6, pressurized pipeline 7, booster pump 8, storage
Gas tank 9, flow line 11 and graduated cylinder 10, rock core 1 are placed in core holding unit 2, and core holding unit 2 is placed in insulating box 3, confined pressure
The one end of pipeline 4 is connected with core holding unit 2, and the other end of confined pressure pipeline 4 is connected with booster pump 8, the one end of admission line 5 and booster pump
8 are connected, and the other end of admission line 5 is connected with balancing gate pit 6, are connected between balancing gate pit 6 and core holding unit 2 by pressurized pipeline 7,
Flow line 11 is additionally provided with core holding unit 2, booster pump 8 is connected with air accumulator 9, and flow line 11 is connected with graduated cylinder 10.
Insulating box 3 causes rock core 1 to be in all the time in isoperibol in experimentation.
Air accumulator 9 is provided with regulating valve 90, for adjusting the gas output of air accumulator 9, according to required gas output, will adjust
Valve 90 rotates to suitable position.
Admission line 5 is sequentially provided with the first gate valve 50, gas-drying apparatus 52, check valve 54 and first along gas flow direction
Pressure gauge 56.First gate valve 50 is used to open admission line 5, when applying confined pressure to rock core 1, closes the first gate valve 50, can protect
Shield gas-drying apparatus 52 is not injured by high confining pressure.Gas-drying apparatus 52 is used to dry the gas entered in admission line 5, after avoiding
There is moisture to enter in rock core 1 accuracy for influenceing measurement result during phase displacement.Check valve 54 is used for the pressure dimension for ensureing balancing gate pit 6
Hold in a certain constant.First pressure table 56 is used for the pressure value for measuring balancing gate pit 6.
Confined pressure pipeline 4 is provided with the second gate valve 40 and second pressure gauge 42.It is used to give confined pressure pipe when second gate valve 40 is opened
Line 4 pressurizes, and confined pressure can be caused to be maintained at a certain constant after closing.Second pressure gauge 42 is used to measure confined pressure pressure value.
Pressurized pipeline 7 includes symmetrically arranged first pressurized pipeline and the second pressurized pipeline, and the first pressurized pipeline is provided with
First stop valve 70, the second pressurized pipeline are provided with the second stop valve 72.First stop valve 70 and the second stop valve 72 are all set
In the exit of balancing gate pit 6, for opening or closing the first pressurized pipeline or the second pressurized pipeline.
Flow line 11 is provided with the 3rd stop valve 110.Oil when 3rd stop valve 110 is opened in rock core 1 is in displacement pressure
Flowed into the presence of power in graduated cylinder 10.
Specifically, in embodiment provided by the utility model, above-mentioned gas drier 52 is anhydrous calcium chloride drying bottle.
Specifically, in embodiment provided by the utility model, the gas in above-mentioned air accumulator 9 is high-purity nitrogen.
The specific measuring process of the gas detection experiment apparatus 100 of the flowable oil saturation of rock core provided by the utility model is such as
Under：
The rock core 1 that coring bit is got is polished into the cylindric rock core 1 matched with core holding unit 2, it is straight to measure its A,
Footpath and height, by the way that the volume V of rock core 1 is calculated；
B, rock core 1 is put into core holding unit 2, installed with the rubber sleeve set in core holding unit 2；
C, all valves in experimental provision are opened, does not start booster pump 8, is slowly thought by regulating valve 90 in experimental provision
Each pipeline injection high-purity nitrogen, after about 3 minutes after the air in each pipeline be drained from it is net after, close all valves, and
First pressure table 56 is corrected to 0；
D, open regulating valve 90, start booster pump 8, then open the second gate valve 40, added by confined pressure pipeline 4 to rock core 1
Confined pressure is held to certain numerical value, after confined pressure steady, now rock core 1 is close by the side of rock core 1 by the rubber sleeve in core holding unit 2
Seal, and confirm the required confined pressure of experiment by observing the numerical value of second pressure gauge 42, be then switched off the second gate valve 40, make confined pressure value
It is stable at the pressure value needed for experiment；
E, the first gate valve 50 is opened, gas passes sequentially through gas in the presence of booster pump 8, by admission line 5 and dried
Enter after device 52 and check valve 54 in balancing gate pit 6, first pressure table 56 value after pressure stabilisation recorded now is P1；
F, stop booster pump 8, close regulating valve 90, open the first stop valve 70 and the second stop valve on pressurized pipeline 7
72 so that high pressure nitrogen in pressurized pipeline 7 penetrates into rock core 1 to the low side of rock core 1 and top simultaneously, in pressure pipeline 7 to be added
After pressure value stabilization, the value of first pressure table 56 recorded now is P2；
G, the porosity Φ of rock core 1 then now is：
In formula：Vp=(P1/P2)×V1-(V1+2V2)；
Wherein, Vp is the pore volume of rock core 1；V is the volume of rock core 1；V1 is the volume of balancing gate pit 6；V2 is the first pressurized pipeline
Or second conduit volume of the pressurized pipeline between the first stop valve 70 or the second stop valve 72 and core holding unit 2；P1, P2 are
The reading of first pressure table 56 during experiment.
H, the second stop valve 72 is closed so that gas in balancing gate pit 6 is by the first pressurized pipeline from the top of rock core 1 to rock
The heart 1 carries out displacement, then the 3rd stop valve 110 on opening flow line 11, and the crude oil in rock core 1 can flow under gas displacement
Enter in graduated cylinder 10, close the 3rd stop valve 110 and the first stop valve 70 when oil-free flows out, and by the crude oil volume in graduated cylinder 10
Vs is designated as, the volume Vx in rock core 1 where being scaled it by following equation：
VX=VS×BO
B in formula0For oil volume factor, obtained by well-log information.
I, so flowable oil saturation S calculation formula of the rock core 1 under the confined pressure and displacement pressure is as follows：
Repeat step D to I, the porosity Φ and rock core 1 of rock core 1 of the measurement rock core 1 under different confined pressures or displacement pressure
Flowable oil saturation S.
The gas detection experiment apparatus of the flowable oil saturation of rock core provided by the utility model has the beneficial effect that：This practicality
New rock pore volume and oil pump capacity by measurement rock core under certain confined pressure, certain displacement pressure, and displacement is gone out
Crude oil volume is scaled underground crude oil volume, then calculates the oil saturation of rock core, and the oil saturation is to test institute
With flowable oil saturation of the rock core under the confined pressure and displacement pressure, therefore, the experimental provision can not only measure
The flowable oil saturation of rock core, it can also be used to the porosity of rock core is measured, in addition, the experimental provision can be surveyed by booster pump
Flowable oil saturation and porosity of the rock core under different confined pressures, different displacement pressures are measured, and measurement period is short, measurement misses
Difference is small, and the reserves for fine and close oil reservoir calculate and the design of subsequent development scheme both provides important theoretical parameter.
It is described above, not make any formal limitation to the utility model, although the utility model has passed through implementation
Example is disclosed above, but is not limited to the utility model, any person skilled in the art, is not departing from this practicality
In new technique aspects, when the technology contents using the disclosure above make it is a little change or be modified to equivalent variations etc.
Embodiment is imitated, as long as being the content without departing from technical solutions of the utility model, according to the technical essence of the utility model to the above
Any simple modification, equivalent change and modification that embodiment is made, in the range of still falling within technical solutions of the utility model.
Claims (3)
- A kind of 1. gas detection experiment apparatus of the flowable oil saturation of rock core, it is characterised in that including rock core, core holding unit, Insulating box, confined pressure pipeline, admission line, balancing gate pit, pressurized pipeline, booster pump, air accumulator, flow line and graduated cylinder, the rock The heart is placed in the core holding unit, and the core holding unit is placed in the insulating box, described confined pressure pipeline one end and described Core holding unit is connected, and the confined pressure pipeline other end is connected with the booster pump, described admission line one end and the booster pump phase Even, the admission line other end is connected with the balancing gate pit, passes through pressurized pipeline between the balancing gate pit and the core holding unit Be connected, flow line is additionally provided with the core holding unit, the booster pump is connected with the air accumulator, the flow line and The graduated cylinder is connected；The air accumulator is provided with regulating valve, for adjusting the gas output of the air accumulator；The admission line is sequentially provided with the first gate valve, gas-drying apparatus, check valve and first pressure table along gas flow direction；The confined pressure pipeline is provided with the second gate valve and second pressure gauge；The pressurized pipeline includes symmetrically arranged first pressurized pipeline and the second pressurized pipeline, is set on first pressurized pipeline There is the first stop valve, second pressurized pipeline is provided with the second stop valve；The flow line is provided with the 3rd stop valve.
- 2. the gas detection experiment apparatus of the flowable oil saturation of rock core according to claim 1, it is characterised in that the gas Gas dryer is anhydrous calcium chloride drying bottle.
- 3. the gas detection experiment apparatus of the flowable oil saturation of rock core according to claim 2, it is characterised in that the storage Gas in gas tank is high-purity nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423952.3U CN206627408U (en) | 2017-04-21 | 2017-04-21 | A kind of gas detection experiment apparatus of the flowable oil saturation of rock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423952.3U CN206627408U (en) | 2017-04-21 | 2017-04-21 | A kind of gas detection experiment apparatus of the flowable oil saturation of rock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206627408U true CN206627408U (en) | 2017-11-10 |
Family
ID=60205553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720423952.3U Expired - Fee Related CN206627408U (en) | 2017-04-21 | 2017-04-21 | A kind of gas detection experiment apparatus of the flowable oil saturation of rock core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206627408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982333A (en) * | 2018-10-18 | 2018-12-11 | 四川富利斯达石油科技发展有限公司 | A kind of gas survey core porosity device |
| CN109458175A (en) * | 2018-11-14 | 2019-03-12 | 中国石油化工股份有限公司 | The prediction technique of reservoir oil saturation under a kind of Overpressure Condition |
-
2017
- 2017-04-21 CN CN201720423952.3U patent/CN206627408U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982333A (en) * | 2018-10-18 | 2018-12-11 | 四川富利斯达石油科技发展有限公司 | A kind of gas survey core porosity device |
| CN109458175A (en) * | 2018-11-14 | 2019-03-12 | 中国石油化工股份有限公司 | The prediction technique of reservoir oil saturation under a kind of Overpressure Condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103645126B (en) | Stratum high-temperature high-pressure air-water phase percolation curve assay method | |
| US20210190666A1 (en) | Device and method for measuring horizontal/vertical permeability of hydrate reservoir | |
| CN103969165B (en) | Device and method for simultaneously testing permeability of compact rocks under transient state and steady state | |
| CN108490156B (en) | Test method for mixed gas oil displacement buried stock experiment under high-temperature and high-pressure conditions | |
| CN102980837B (en) | Hydro carbons diffusion coefficients equipment and assay method in rock under High Temperature High Pressure | |
| CN104374683B (en) | A kind of rock core pore compressibility test device and its method of testing | |
| CN102353625B (en) | Method for measuring overburden porosity with water in permeation fluid mechanics experiment | |
| CN206920290U (en) | A kind of hyposmosis tight sand stress sensitive coefficients measurement apparatus | |
| CN202882901U (en) | Experimental device for evaluating damage of rock core | |
| CN106970001A (en) | The simulating test device and method of loss tolerance in the test of shale air content | |
| CN104563982B (en) | High-temperature high-pressure dry gas injection longitudinal wave and efficiency testing device and method for gas condensate reservoir | |
| CN113075109B (en) | Underground gas storage reservoir drying salting-out blocking injury experiment simulation system and method | |
| CN113109546A (en) | Experimental device and method for predicting drying salt deposition range of reservoir of underground gas storage | |
| CN105606517A (en) | Instrument for measuring relative permeability of low permeability reservoir using nuclear magnetic resonance | |
| CN103558137B (en) | A kind of device measuring porous medium air water two-phase relative permeability | |
| CN110761749B (en) | Natural gas hydrate synthesis and exploitation simulation experiment system and experiment method | |
| CN104297126B (en) | low permeability reservoir gas seepage starting pressure gradient measuring device and measuring method | |
| CN107167413B (en) | A kind of compact rock core apparent permeability test device and method of testing | |
| CN206627408U (en) | A kind of gas detection experiment apparatus of the flowable oil saturation of rock core | |
| CN203929584U (en) | A kind of transient state stable state is tested the device of compacted rock permeability simultaneously | |
| CN110285865B (en) | System and method for simulating gas loss in shale field coring process | |
| CN113866069A (en) | Shale core permeability experiment device and method | |
| CN206546315U (en) | A kind of hyposmosis tight sand permeability experimental provision | |
| CN108732329B (en) | Coal seam gas pressure measurement simulation experiment device and method | |
| CN205749187U (en) | A kind of air content measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20180421 |