CN108825221A - Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device and method in layer - Google Patents
Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device and method in layer Download PDFInfo
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- CN108825221A CN108825221A CN201810557849.7A CN201810557849A CN108825221A CN 108825221 A CN108825221 A CN 108825221A CN 201810557849 A CN201810557849 A CN 201810557849A CN 108825221 A CN108825221 A CN 108825221A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/001—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells specially adapted for underwater installations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
Abstract
The present invention relates to homogeneous in a kind of layer and heterogeneous thick oil pay remaining oil distribution detection device and method, homogeneous and heterogeneous thick oil pay remaining oil distribution detection device include in layer：Stratified stoichiometric flat plate model, stratified stoichiometric flat plate model includes cuboid housing, is single-layer or multi-layer sand body in cuboid housing, and rectangle shell side top is equipped with inlet, other side side wall is equipped with single or multiple outlets, and outlet connects corresponding oil water separator and graduated cylinder；Uniform source of light is arranged in stratified stoichiometric flat plate model dead astern, video camera is arranged in front, and homogeneous and heterogeneous thick oil pay remaining oil distribution detection device are integrally placed in insulating box in layer.The present invention can simulate the reservoir structure of each elephant actual block from experiment scale using similarity criterion, pass through injection mode, the adjustment of the various measures of injection timing, the development stimulation of most suitable subject oil field production is simulated, the relevant technologies are provided and are supported for volume increase, the increasing matter exploitation of oil field from now on.
Description
Technical field
The invention belongs to the physical experiment equipment fields of oil and gas exploitation, and in particular, in a kind of layer homogeneous and
Heterogeneous thick oil pay remaining oil distribution detection device and method, for testing the heterogeneous big thick storage such as homogeneous, positive rhythm, anti-rhythm
The remaining oil distribution of layer.
Background technique
Offshore oilfield mostly uses the mode of wide spacing commingling production to develop since the well head of the small receiving of platform area is limited,
The oil reservoir developed at present is thicker, and serious heterogeneity in layer, water filling, polymer injection development during due to permeability contrast,
Gravitational differentiation makes injection water between injection-production well advance by leaps and bounds seriously along predominant pathway, causes big in high water-cut stage producing well peripheral layer
Measure the remaining oil not involved.
It is divided into In Thick Reservoirss by longitudinal permeability difference：Homogeneous pay, positive rhythm (the high top permeability of lower part permeability
It is low) oil reservoir, the anti-rhythm (permeability high lower part permeability in top is low) oil reservoir.Along oil reservoir longitudinal direction remaining oil during waterflooding development
Development degree is different, and is known as " existing and secondary primary advantage water stream channel " on mining site, in the very high feelings of oil well producing water ratio
Under condition around its shaft bottom not employ remaining oil saturation still very high.For the water-flooding performance and shadow of remaining oil in research layer
The factor of sound, devises this " heterogeneous thick oil pay remaining oil distribution detection device in homogeneous and layer ", can pass through Physical Experiment means
It observes directly remaining oil in layer and there is rule, oil field is instructed further to adjust development plan, have to oil recovery factor is improved
Important meaning.
Currently, laboratory physical simulation experiment is using parallel core or sand-filling tube model research heterogeneity in parallel mostly
The Remaining Oil Distribution and influence factor of reservoir, it is full using each layer remaining oil of X-ray detection that Sun Zhixue etc. devises dispensing point
With the experimental provision of degree.So far, without the oil reservoir as caused by gravitational differentiation in detection layers, longitudinally each position is remaining
The experimental provision of oil distribution rule and flow condition.This experimental provision is the flat plate model of a two dimensional visible, main analog mesh
The preceding big thick-layer of offshore oilfield closes note conjunction and adopts production status, and injection well closes note, and producing well segmentation detects liquid, fuel-displaced situation, passes through
That records a video and observe each layer crude oil of detection employs situation, by changing injection mode, observes crude oil near longitudinal direction and oil well and is saturated
Degree is employed and liquid condition out, for Petroleum Engineer's understanding and improves such oil field development situation and provides solid foundation.
Summary of the invention
To make up the deficiencies in the prior art, the present invention provides homogeneous and heterogeneous thick oil pay remaining oil distribution in a kind of layer
Detection device and method；Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device can intuitively be shown in homogeneous and layer in the layer
When the water filling of heterogeneous thick oil pay (poly-/poly- table binary) separate zone production in homogeneous and layer in heterogeneous thick oil pay grease propulsion variation
And remaining oil distribution near producing well, and the displacement situation of each layer can be further analyzed by fluid acquisition system, it obtains
The recovery percent of reserves of each layer.
To achieve the above object, the present invention uses following proposal：
Homogeneous and heterogeneous thick oil pay remaining oil distribution detection device in layer, including：Stratified stoichiometric flat plate model, wherein：
Stratified stoichiometric flat plate model includes cuboid housing, is single-layer or multi-layer sand body, rectangle shell side top in cuboid housing
End is equipped with inlet, and other side side wall is equipped with single or multiple outlets, and outlet number is identical as the number of plies of sand body, and each outlet corresponds to
One oil water separator and a graduated cylinder, each outlet are separately connected corresponding oil water separator, each oil water separator connection
Corresponding graduated cylinder；Uniform source of light is arranged in stratified stoichiometric flat plate model dead astern, video camera is arranged in front, in layer homogeneous and it is non-
Matter thick oil pay remaining oil distribution detection device is integrally placed in insulating box.
Preferably, cuboid housing is formed by acrylic poly (methyl methacrylate) plate by organic glass glue sticking, including：Layering meter
It measures flat plate model front glass plate, stratified stoichiometric flat plate model rear end glass plate, stratified stoichiometric flat plate model upper end glass bar, divide
Layer metering flat plate model lower end glass bar, stratified stoichiometric flat plate model left end glass bar, stratified stoichiometric flat plate model right end glass
Item；Position in cuboid housing apart from left end glass bar 2mm~4mm is embedded in left end cellular glass item, left end porous vertically
Glass length, thickness are identical as left end glass bar, with a thickness of 2mm~3mm, are close to one layer of equal length on the right side of the cellular glass item of left end
Left end gauze；Position of the cuboid housing apart from right end glass bar 2mm~4mm is embedded in right end cellular glass item, right end vertically
Cellular glass length, thickness are identical as right end glass bar, with a thickness of 2mm~4mm, are close to one layer on the left of right end cellular glass item
The right end gauze of equal length；Single or multiple outlet endplates are laterally set between right end glass bar and right end cellular glass item,
Each outlet endplate is located between the adjacent layer of sand body.
Preferably, single-layer or multi-layer sand body is equipped between left end cellular glass item and right end cellular glass item, sand body is by stone
Sand with epoxide-resin glue is mixing cured forms, be interconnected between each layer of heterogeneous reservoir, by the different quartz sand of mesh number, no
Epoxide-resin glue and quartz sand in proportion simulates different reservoir structure.
Preferably, stratified stoichiometric flat plate model inlet is located at rectangular between left end cellular glass item, left end glass bar
Body housing tip, using plunger pump constant flow by the fluid displacement in intermediate receptacle to stratified stoichiometric flat plate model inlet；
The horizontally arranged each outlet of stratified stoichiometric flat plate model right end, each outlet, most bottom concordant with corresponding outlet endplate
Bring out the fluid that mouth is concordant with the bottom end of cuboid housing internal cavity, flows out inside each layer outlet layering acquisition sand body；It is each go out
Mouth is connected with corresponding oil water separator, and each oil water separator is connected to corresponding graduated cylinder, and each oil water separator passes through note
Record oil liquid level scale so that it is determined that each layer extraction oil mass, the liquid level scale of each graduated cylinder be then represent each layer go out liquid
Amount.
Preferably, video camera stands on the front of stratified stoichiometric flat plate model by tripod, acquires oil and water zonation in real time
The image of situation is transferred in computer and carries out subsequent processing.
Homogeneous and heterogeneous thick oil pay remaining oil distribution in homogeneous and heterogeneous thick oil pay remaining oil distribution detection layers in layer
Detection method is included the following steps using homogeneous in above-mentioned layer and heterogeneous thick oil pay remaining oil distribution detection device：
(1), the dry weight for weighing stratified stoichiometric flat plate model, carries out stratified stoichiometric flat plate model to vacuumize saturation simulation
Oil weighs the weight in wet base of stratified stoichiometric flat plate model, the hole of stratified stoichiometric flat plate model 1 is calculated after to be aging after saturation
Gap volume；
(2), calorstat temperature is adjusted to experimental temperature, it is fixed by plunger pump after constant temperature the temperature inside the box reaches experimental temperature
Water flooding in the displacement intermediate receptacle of flow carries out once pipeline equipment before displacement to stratified stoichiometric flat plate model inlet
Internal air emptying, later, water flooding enters stratified stoichiometric flat plate model sand body by stratified stoichiometric flat plate model inlet
Inside, water flooding is due to the simulation oil in driving force and three layers of gravitational differentiation displacement, and grease that displacement goes out is from stratified stoichiometric
The each outlet of flat plate model separately flows into corresponding oil water separator, and the shooting of video camera real-time perfoming is remembered at regular intervals simultaneously
Record the scale of the oily page scale and graduated cylinder in oil water separator；The time that the moment is recorded when the water breakthrough of outlet end, wait export
End moisture content is more than to close the intermediate receptacle valve switch of loading water flooding, open the intermediate receptacle of loading polymer after 30%
Valve switch, continuing displacement terminates to test to exporting when total water yield reaches 98%；
(3), according to each oil water separator and graduated cylinder each moment collected data, processing obtains stratified stoichiometric plate
Model is calculated the production rate of different moments each layer and produces liquid speed in the recovery percent of reserves and moisture content of different moments each layer
Degree draws the pass of the recovery percent of reserves of each layer and the relation curve of injection PV number, moisture content and injection PV number according to the data of calculating
It is curve；It is layered after being injected according to the analysis description water breakthrough moment at image correspondence data acquisition moment of video camera shooting and polymer
The oil and water zonation situation in flat plate model is measured, in conjunction with the graph of relation analysis and summary homogeneous and heterogeneous heat-bodied oil drawn out
Layer Remaining Oil Distribution.
Compared with the existing technology, the present invention has the advantages that：
It 1, can be by adjusting heterogeneous each layer of thick oil pay in the mesh number of quartz sand and the proportion adjustment layer of epoxide-resin glue
Permeability can simulate the reservoir structure of each elephant actual block, by injection side from experiment scale using similarity criterion
The adjustment of the various measures of formula, injection timing simulates the development stimulation of most suitable subject oil field production, is the increasing of oil field from now on
It produces, matter exploitation offer the relevant technologies support is provided；
2, heterogeneous reservoir can be suitable for fuel-displaced, the liquid outlet quantity of each layer of thick oil pay heterogeneous in layered quantitative acquisition layer
The quantitative study of remaining oil substratum distribution；
3, it can be intuitively displayed each layer oil when heterogeneous thick oil pay water filling (poly-/poly- table binary) separate zone production in homogeneous and layer
Remaining oil distribution near the propulsion variation of water and producing well.
Detailed description of the invention
Fig. 1 is homogeneous and heterogeneous thick oil pay remaining oil distribution structure of the detecting device schematic diagram in layer；
Fig. 2 is stratified stoichiometric flat plate model schematic diagram；
Fig. 3 is stratified stoichiometric flat plate model top cross-sectional view；
Fig. 4 is stratified stoichiometric flat plate model left view, right side view；
In figure：1, stratified stoichiometric flat plate model；2, stratified stoichiometric flat plate model inlet；3a, first outlet；3b, second
Outlet；3c, third outlet；4a, the first oil water separator；4b, the second oil water separator；4c, third oil water separator；5a,
One graduated cylinder；5b, the second graduated cylinder；5c, third graduated cylinder；6, stratified stoichiometric flat plate model front glass plate；7, stratified stoichiometric plate mould
Type rear end glass plate；8, stratified stoichiometric flat plate model upper end glass bar；9, stratified stoichiometric flat plate model lower end glass bar；10, divide
Layer metering flat plate model left end glass bar；11, stratified stoichiometric flat plate model right end glass bar；12a, left end cellular glass item；
12b, right end cellular glass item；13a, left end strainer；13b, right end strainer；14a, first outlet endplate；14b, second outlet
Endplate.
Specific embodiment
It is schematically illustrated for three layers of sand body below, as shown in Figure 1, homogeneous and heterogeneous thick oil pay remaining oil in layer
Distribution detecting device, including：Stratified stoichiometric flat plate model 1, stratified stoichiometric flat plate model 1 include cuboid housing, rectangular body shell
It is in vivo single layer (homogeneous) or multilayer (heterogeneous) sand body, rectangle shell side top is equipped with inlet, and other side side wall is set
There are three outlet, three outlets are separately connected oil water separator, and oil water separator connects graduated cylinder；Stratified stoichiometric flat plate model just after
Video camera is arranged in side's setting uniform source of light, front, and homogeneous and heterogeneous thick oil pay remaining oil distribution detection device are whole in layer
It is placed in insulating box, insulating box guarantees that package unit is in isoperibol, provides a corresponding experimental temperature, uniform source of light is true
It protects video camera and collects the metering outfit of the preferable image of effect, oil water separator and graduated cylinder as grease extraction situation.
Cuboid housing is formed by acrylic poly (methyl methacrylate) plate by organic glass glue sticking, including：Stratified stoichiometric plate
Model front glass plate 6, stratified stoichiometric flat plate model rear end glass plate 7, stratified stoichiometric flat plate model upper end glass bar 8, layering
Measure flat plate model lower end glass bar 9, stratified stoichiometric flat plate model left end glass bar 10, stratified stoichiometric flat plate model right end glass
Item 11；Position in cuboid housing apart from left end glass bar 2mm~4mm is embedded in left end cellular glass 12a vertically, and left end is more
Hole glass bar 12a length, thickness are identical as left end glass bar 10, tight on the right side of the cellular glass 12a of left end with a thickness of 2mm~3mm
Paste the left end gauze 13a of one layer of equal length；Position of the cuboid housing apart from right end glass bar 2mm~4mm is embedded in right end vertically
Cellular glass 12b, right end cellular glass 12b length, thickness are identical as right end glass bar 11, right with a thickness of 2mm~4mm
Hold the right end gauze 13b for being close to one layer of equal length on the left of cellular glass 12b；Right end glass bar 11 and right end cellular glass item
First outlet endplate 14a is laterally set between 12b, second outlet endplate 14b, first outlet endplate 14a are located at right end
At cellular glass 12b vertical 2/3rds, second outlet endplate 14b be located at right end cellular glass 12b vertical three/
At one.
Single layer (homogeneous) or multilayer (heterogeneous) are equipped between left end cellular glass 12a and right end cellular glass 12b
Sand body, sand body by quartz sand with epoxide-resin glue is mixing cured forms, by the different quartz sand of mesh number, the asphalt mixtures modified by epoxy resin of different proportion
Rouge glue and quartz sand simulate different reservoir structure.
Cuboid of the stratified stoichiometric flat plate model inlet 2 between left end cellular glass 12a, left end glass bar 10
Housing tip, using plunger pump constant flow by the fluid displacement in intermediate receptacle to stratified stoichiometric flat plate model inlet 2；Point
The horizontally arranged first outlet 3a of layer metering 2 right end of flat plate model, second outlet 3b, third export 3c, first outlet 3a with
First outlet endplate 14a is concordant, and second outlet 3b is concordant with second outlet endplate 14b, and third exports 3c and rectangular body shell
The bottom end of internal cavity is concordant, the stream that first outlet 3a, second outlet 3b, third outlet 3c layering acquisition sand body inside are flowed out
Body；First outlet 3a is connect with the first oil water separator 4a, and second outlet 3b is connect with the second oil water separator 4b, third outlet
3c is connect with third oil water separator 4c；First oil water separator 4a is connected in the first graduated cylinder 5a, the second oil water separator 4b
It is connected in the second graduated cylinder 5b, third oil water separator 4c is connected in third graduated cylinder 5c, the first oil water separator 4a, the second oil
Separator 4b, third oil water separator 4c are by the oily liquid level scale of record so that it is determined that three layers of extraction oil mass, the first amount
Cylinder 5a, the second graduated cylinder 5b, third graduated cylinder 5c liquid level scale be then the liquid outlet quantity for representing three layers.
The uniform source of light of 1 dead astern of stratified stoichiometric flat plate model setting provides preferable illumination condition, video camera for shooting
The front of stratified stoichiometric flat plate model 2 is stood on by tripod, is acquired the image of oil and water zonation situation in real time, is transferred to calculating
Subsequent processing is carried out in machine.
Homogeneous and heterogeneous thick oil pay remaining oil distribution in homogeneous and heterogeneous thick oil pay remaining oil distribution detection layers in layer
Detection method is included the following steps using homogeneous in above-mentioned layer and heterogeneous thick oil pay remaining oil distribution detection device：
(1), the dry weight for weighing stratified stoichiometric flat plate model 1, carries out stratified stoichiometric flat plate model 1 to vacuumize saturation simulation
Oil weighs the weight in wet base of stratified stoichiometric flat plate model 1, stratified stoichiometric flat plate model 1 is calculated after to be aging after saturation
Pore volume；
(2), calorstat temperature is adjusted to experimental temperature, it is fixed by plunger pump after constant temperature the temperature inside the box reaches experimental temperature
Water flooding in the displacement intermediate receptacle of flow carries out once pipeline before displacement to stratified stoichiometric flat plate model inlet 2 and sets
Standby internal air emptying, later, water flooding enters stratified stoichiometric flat plate model 1 by stratified stoichiometric flat plate model inlet 2
Inside sand body, water flooding is due to the simulation oil in driving force and three layers of gravitational differentiation displacement, and grease that displacement goes out is from layering
Metering flat plate model first outlet 3a, second outlet 3b, third outlet 3c separately flow into the first oil water separator 4a, the second grease
Separator 4b, third oil water separator 4c, the shooting of video camera real-time perfoming record in oil water separator at regular intervals simultaneously
Oily page scale and graduated cylinder scale；The time that the moment is recorded when the water breakthrough of outlet end is more than to outlet end moisture content
After 30%, the intermediate receptacle valve switch for loading water flooding is closed, the intermediate receptacle valve switch of loading polymer is opened, continued
Displacement terminates to test to exporting when total water yield reaches 98%.
(3), according to three oil water separators and graduated cylinder each moment collected data, processing obtains stratified stoichiometric plate
Model 1 is calculated the production rate of different moments each layer and produces liquid speed in the recovery percent of reserves and moisture content of different moments each layer
Degree draws the pass of the recovery percent of reserves of each layer and the relation curve of injection PV number, moisture content and injection PV number according to the data of calculating
It is curve；It is layered after being injected according to the analysis description water breakthrough moment at image correspondence data acquisition moment of video camera shooting and polymer
The oil and water zonation situation in flat plate model 1 is measured, in conjunction with the graph of relation analysis and summary homogeneous and heterogeneous thickness drawn out
Oil reservoir Remaining Oil Distribution.
Claims (6)
1. homogeneous and heterogeneous thick oil pay remaining oil distribution detection device in a kind of layer, including：Stratified stoichiometric flat plate model, it is special
Sign is：Stratified stoichiometric flat plate model includes cuboid housing, is single-layer or multi-layer sand body, rectangle shell in cuboid housing
Side top is equipped with inlet, and other side side wall is separately connected oil water separator, grease equipped with one or more outlet, outlet
Separator connects graduated cylinder；Uniform source of light is arranged in stratified stoichiometric flat plate model dead astern, video camera is arranged in front, in layer homogeneous and
Heterogeneous thick oil pay remaining oil distribution detection device is integrally placed in insulating box.
2. homogeneous and heterogeneous thick oil pay remaining oil distribution detection device in layer according to claim 1, it is characterised in that：
Cuboid housing is formed by acrylic poly (methyl methacrylate) plate by organic glass glue sticking, including：Stratified stoichiometric flat plate model front end
Glass plate, stratified stoichiometric flat plate model rear end glass plate, stratified stoichiometric flat plate model upper end glass bar, stratified stoichiometric flat plate model
Lower end glass bar, stratified stoichiometric flat plate model left end glass bar, stratified stoichiometric flat plate model right end glass bar；In cuboid housing
Position apart from left end glass bar 2mm~4mm is embedded in left end cellular glass item vertically, left end cellular glass length, thickness with
Left end glass bar is identical, and with a thickness of 2mm~3mm, the left end gauze of one layer of equal length is close on the right side of the cellular glass item of left end；It is rectangular
Position of the body shell body apart from right end glass bar 2mm~4mm is embedded in right end cellular glass item vertically, right end cellular glass length,
Thickness is identical as right end glass bar, and with a thickness of 2mm~4mm, the right end yarn of one layer of equal length is close on the left of right end cellular glass item
Net；Single or multiple outlet endplates, each outlet endplate are laterally set between right end glass bar and right end cellular glass item
Between the adjacent layer of sand body.
3. homogeneous and heterogeneous thick oil pay remaining oil distribution detection device, feature exist in layer according to claim 1 to 2
In：Single-layer or multi-layer sand body is equipped between left end cellular glass item and right end cellular glass item, sand body is by quartz sand and asphalt mixtures modified by epoxy resin
Rouge glue is mixing cured to be formed, and is interconnected between each layer of heterogeneous reservoir, by the different quartz sand of mesh number, the epoxy of different proportion
Resin glue and quartz sand simulate different reservoir structure.
4. homogeneous and heterogeneous thick oil pay remaining oil distribution detection device, feature exist in layer according to claim 1 to 3
In：Stratified stoichiometric flat plate model inlet is located at the cuboid housing top between left end cellular glass item, left end glass bar, benefit
With plunger pump constant flow by the fluid displacement in intermediate receptacle to stratified stoichiometric flat plate model inlet；Stratified stoichiometric plate mould
The horizontally arranged each outlet of type right end, each outlet is concordant with corresponding outlet endplate, lowermost end outlet and cuboid
The bottom end of shell internal cavity is concordant, the fluid flowed out inside each layer outlet layering acquisition sand body；It is each to export and corresponding grease
Separator connection, each oil water separator are connected to corresponding graduated cylinder, the liquid level scale that each oil water separator passes through record oil
So that it is determined that the extraction oil mass of each layer, the liquid level scale of each graduated cylinder is then to represent the liquid outlet quantity of each layer.
5. homogeneous and heterogeneous thick oil pay remaining oil distribution detection device, feature exist in layer described in -4 according to claim 1
In：Video camera stands on the front of stratified stoichiometric flat plate model by tripod, acquires the image of oil and water zonation situation in real time, passes
It is defeated that subsequent processing is carried out into computer.
6. homogeneous and heterogeneous thick oil pay remaining oil in homogeneous and heterogeneous thick oil pay remaining oil distribution detection layers in a kind of layer
Cloth detection method, using homogeneous in layer described in one of claim 1-5 and heterogeneous thick oil pay remaining oil distribution detection device,
Include the following steps：
(1), the dry weight for weighing stratified stoichiometric flat plate model carries out stratified stoichiometric flat plate model to vacuumize saturation simulation oil, satisfy
The rear weight in wet base for weighing stratified stoichiometric flat plate model to be aging, is calculated the pore-body of stratified stoichiometric flat plate model 1 with after
Product；
(2), calorstat temperature is adjusted to experimental temperature, passes through plunger pump constant flow after constant temperature the temperature inside the box reaches experimental temperature
Displacement intermediate receptacle in water flooding, carry out inside once pipeline equipment before displacement to stratified stoichiometric flat plate model inlet
Air emptying, later, water flooding is entered inside stratified stoichiometric flat plate model sand body by stratified stoichiometric flat plate model inlet,
Water flooding is due to the simulation oil in driving force and three layers of gravitational differentiation displacement, and grease that displacement goes out is from stratified stoichiometric plate mould
The each outlet of type separately flows into corresponding oil water separator, and the shooting of video camera real-time perfoming records grease at regular intervals simultaneously
The scale of oily page scale and graduated cylinder in separator；The time at the moment is recorded when the water breakthrough of outlet end, it is aqueous to outlet end
Rate is more than to close the intermediate receptacle valve switch for loading water flooding after 30%, and the intermediate receptacle valve for opening loading polymer is opened
It closes, continuing displacement terminates to test to exporting when total water yield reaches 98%；
(3), according to each oil water separator and graduated cylinder each moment collected data, processing obtains stratified stoichiometric flat plate model
In the recovery percent of reserves and moisture content of different moments each layer, the production rate of different moments each layer is calculated and produces liquid speed degree, root
The relationship for drawing the recovery percent of reserves of each layer and the relation curve of injection PV number, moisture content and injection PV number according to the data of calculating is bent
Line；According to stratified stoichiometric after the analysis description water breakthrough moment at image correspondence data acquisition moment of video camera shooting and polymer injection
Oil and water zonation situation in flat plate model, it is surplus in conjunction with the graph of relation analysis and summary homogeneous and heterogeneous thick oil pay drawn out
The excess oil regularity of distribution.
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| CN201810557849.7A CN108825221B (en) | 2018-06-01 | 2018-06-01 | Device and method for detecting distribution of residual oil in homogeneous and heterogeneous thick oil layers in layer |
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| CN201810557849.7A CN108825221B (en) | 2018-06-01 | 2018-06-01 | Device and method for detecting distribution of residual oil in homogeneous and heterogeneous thick oil layers in layer |
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| CN111101910A (en) * | 2019-11-19 | 2020-05-05 | 中海石油(中国)有限公司深圳分公司 | Water displacement experimental device and experimental method for bottom water two-dimensional flat plate physical model |
| CN111173498A (en) * | 2020-02-25 | 2020-05-19 | 东北石油大学 | Visual oil displacement device for experiment |
| CN113236208A (en) * | 2021-04-20 | 2021-08-10 | 中海油能源发展股份有限公司 | Experimental device and method for physically simulating polymer flooding production liquid descending rule |
| CN114459841A (en) * | 2020-11-09 | 2022-05-10 | 中国石油天然气股份有限公司 | Heterogeneous core model and method of making same |
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