CN104897551B - High-temperature high-pressure thermal fluid seepage simulation device - Google Patents
High-temperature high-pressure thermal fluid seepage simulation device Download PDFInfo
- Publication number
- CN104897551B CN104897551B CN201510345419.5A CN201510345419A CN104897551B CN 104897551 B CN104897551 B CN 104897551B CN 201510345419 A CN201510345419 A CN 201510345419A CN 104897551 B CN104897551 B CN 104897551B
- Authority
- CN
- China
- Prior art keywords
- hole
- fluid
- pressure
- hot fluid
- circulation
- 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.)
- Active
Links
Abstract
The invention provides a high-temperature high-pressure thermal fluid seepage simulation device. The high-temperature high-pressure thermal fluid seepage simulation device at least comprises a diagenesis reaction control simulation device, a high-temperature high-pressure pump and a thermal fluid circulation unit. The high-temperature high-pressure pump and the thermal fluid circulation unit are communicated with the diagenesis reaction control simulation device. The diagenesis reaction control simulation device comprises a front cavity, a rear cavity and a connection block connected with the front cavity and the rear cavity. A press rod penetrating the connection block is arranged in the connection block. Two ends of the press rod are connected with two pistons respectively. The ends of the front cavity and the rear cavity are sealed by a front press cap and a rear press cap respectively. The diagenesis reaction control simulation device is communicated with the thermal fluid circulation unit through liquid outlet holes and a liquid inlet hole which are formed in the front cavity, and is communicated with the high-temperature high-pressure pump through an oil inlet hole of the rear press cap. Intelligently-controlled thermostatic sleeves sleeve the diagenesis reaction control simulation device and a circulation container of the thermal fluid circulation unit respectively. The high-temperature high-pressure thermal fluid seepage simulation device can simulate high-temperature high-pressure thermal fluid seepage of the stratum physically, can analyze influence degrees of different influence factors on diagenesis time quantitatively and can be used for production of artificial cores.
Description
Technical field
The present invention relates to a kind of Seepage Flow Simulation Test Unit, and in particular to a kind of experimental study is simulated with diagenesis governing factor and stored up
Layer fluid Seepage Flow Simulation Test Unit, belongs to diagenetic environment simulation and Reservoir Seepage physical simulation techniques field.
Background technology
Rock diagenesis is a sufficiently complex process, pressure, temperature, fluid properties, clay mineral content, rock particles
The change of composition etc. can affect rock-forming time and diagenesis quality.It is Reservoir Seepage that artificial core is particularly large scale artificial core
The media base of the researchs such as rule, perforation, acid fracturing evaluation, it is therefore desirable to quantitative point that the influence factor of diagenesis is carried out
Analysis, to improve the preparation efficiency of existing artificial core, accurately impact of the different factors of analysis to rock-forming time.
Carried out by artificial core compacting equipment more than the current analysis to rock-forming time different affecting factors, existing people's lithogenesis
Rock core raw material is compacted using Driven by Hydraulic Cylinder piston rod more than heart compacting equipment, can be prepared using people's lithogenesis of artificial gelatin substance
The heart, but this kind of artificial core structure composition distinguishes larger with true core, and the cement of artificial gelatin substance formation and ground
Layer true core is different, it is difficult to which for simulating true core, and the artificial core of close true core does not contain artificial gelatin substance,
Need high-temperature and high-pressure conditions compacting and rock core pressing process press temperature and pressure in steps change, existing artificial core
Preparation facilities compacting cycle length (be more than 10 days), efficiency are low, and hot fluid dynamic change can not be simulated in compacting process are caused
Cement chemical reaction, therefore, it is difficult to carrying out the quantitative analysis of diagenesis influence factor.
The content of the invention
It is an object of the invention to solve the deficiencies in the prior art, and one kind is provided can be to rock-forming time different affecting factors
Influence degree carry out quantitative analysis, so as to improve artificial core preparation efficiency HTHP hot fluid seepage simulation dress
Put, the device is capable of achieving stratum high-temperature high-pressure heated fluid percolation experiment and can be used for preparing artificial core.
Realize technical scheme that the object of the invention adopted for a kind of, HTHP hot fluid Seepage Flow Simulation Test Unit, at least
Including rock core storing apparatus and the fluid circuit unit connected with rock core storing apparatus, the rock core storing apparatus are diagenetic reaction
Control analogue means, fluid circuit unit is hot fluid circulation unit, and diagenetic reaction control analogue means is externally provided with communication
High-temperature high pressure pump；The diagenetic reaction control analogue means includes the front cavity with piston, the rear chamber with piston and company
The contiguous block of front cavity and rear chamber is connect, contiguous block and the depression bar vertical with contiguous block end face are provided through in contiguous block, pressed
Bar two ends are connected respectively with 2 pistons, and the end of front cavity and rear chamber is sealed respectively by front pressing cap and rear pressing cap, after
Offer fuel feed hole and outage in pressure cap vertically, high-temperature high pressure pump is connected by fuel feed hole with rear chamber, edge in front pressing cap
Axially offer the outage for connecting front cavity and the external world, radially offer in the cavity wall of the front cavity inlet opening and
Fluid hole, hot fluid circulation unit controls analogue means and connects by inlet opening and fluid hole with diagenetic reaction；The hot fluid
Cycling element includes constant-flux pump and the circulation vessel A connected with constant-flux pump and circulation vessel B, circulation vessel A and circulation vessel B
Control the inlet opening and fluid hole of analogue means front cavity by the pipeline with valve and pressure transmitter and diagenetic reaction respectively
Connection, is arranged with the intelligence control with temperature transmitter permanent on diagenetic reaction control analogue means, circulation vessel A and circulation vessel B
Temperature set.
Diagenetic reaction control analogue means is externally provided with the data acquisition unit and use electrical component with each that computer electrically connects with computer
The power control switch of electrical connection, temperature transmitter and pressure transmitter are all connected with the input of data acquisition unit.
Diagenetic reaction control analogue means is externally provided with graduated cylinder and hydrops bottle, and graduated cylinder is by the pipeline with valve and rear pressing cap
Outage is connected, and hydrops bottle is connected by the pipeline with valve and pressure transmitter with the outage of front pressing cap, under hydrops bottle
Side is provided with the electronic balance electrically connected with data acquisition unit input.
The center of rear pressing cap offers vertically displacement guide through hole, and displacement guide post, position are provided with displacement guide through hole
Move between guide post and displacement guide through hole and sealed by sealing ring, one end and the piston in rear chamber of displacement guide post connect
Connect, the other end is located at outside diagenetic reaction control analogue means and is connected with the displacement electrically connected with data acquisition unit input and passes
Sensor.
The front pressing cap is made up of plug and the gland that is sheathed on plug, and plug is T-shaped, including closure plate and is hung down with closure plate
Straight set core, gland is sheathed on core and pushes against closure plate, and outage is located in set core, offers back pressure in gland vertically
Hole, the gap between gland and plug is in communication with the outside by back pressure hole.
More than 2 fluid holes being parallel to each other are offered in the cavity wall of front cavity, one of fluid hole is followed with hot fluid
Ring element is connected, and stopple, radial direction folder of the inlet opening between front pressing cap, inlet opening and fluid hole are equipped with remaining fluid hole
Angle is 180 °.
Be provided with the filter layer being made up of 2 metafiltration nets and the filter paper being located between 2 metafiltration nets in front cavity, filter layer with it is front
Pressure cap end contact.
The two reset through holes connected with rear chamber are offered in contiguous block, reset through hole is L-shaped, both ends open difference position
On the side and rear end face of contiguous block, diagenetic reaction control analogue means is externally provided with dynamical element, and dynamical element is by resetting
Through hole is connected with rear chamber.
The diagenetic reaction control reset through hole of analogue means, fuel feed hole, outage, inlet opening, fluid hole, outage and return
The aperture all same in pressure hole, between front pressing cap and front cavity, between rear pressing cap and rear chamber and between contiguous block and depression bar
Sealed by sealing ring.
Piston is equipped with two circulation vessels of circulation vessel A and circulation vessel B, circulation vessel is divided into stream by piston
Body cabin and the pressure chamber below fluid cabin, the two ends of circulation vessel are respectively by upper end cover and lower end cover seal, upper end cover
Sealing ring is equipped with the end of bottom end cover, bottom end cover is provided with the three-way pipeline connected with pressure chamber, three-way pipeline goes out liquid
Pipeline A is connected with constant-flux pump, and graduated cylinder is communicated with the liquid outlet of drain pipe road B, and on the drain pipe road A communicating valve is provided with
Door, on drain pipe road B exhaust-valve is provided with.
As shown from the above technical solution, in the HTHP hot fluid Seepage Flow Simulation Test Unit that the present invention is provided, diagenetic reaction
Control analogue means is separated into four sealing skies by contiguous block and 2 pistons being embedded at respectively in front cavity and rear chamber
Between, it is followed successively by：
1) by the hydraulic power capsule of the piston seal in rear pressing cap and rear chamber, fuel feed hole, oil extraction are offered in rear pressing cap
Hole and displacement guide through hole, high-temperature high pressure pump is entered high-pressure and hydraulic oil pump in hydraulic power capsule by pipeline, and hydraulic oil is promoted lives
Plug and depression bar are moved forward along displacement guide through hole, by pressure conduction to front cavity；
2) the reset cabin sealed by the piston in rear chamber and contiguous block, the side of contiguous block offers two and resets and leads to
Hole, reset through hole connects the external world with reset cabin, and one of reset through hole is connected by the pipeline with valve with dynamical element,
Dynamical element is capable of achieving pneumatic reset or the hydraulic reset of depression bar and piston, and according to the difference of reset mode, dynamical element is optional
Air compressor or hydraulic pump, rock core compacting is filled with fluid pressurization in reset cabin after terminating by dynamical element, in reset cabin
High-pressure fluid promote piston and depression bar to be moved rearwards by being retracted into initial position；
3) by the pressure conduction cabin of the piston seal in contiguous block and front cavity, by depression bar by the pressure in hydraulic power capsule
Power is conducted to simulation reaction cabin；
4) by the simulation reaction cabin of the piston seal in front pressing cap and front cavity, rock core raw material (sandstone particle, mud stone particle
And natural salt) simulation reaction cabin is positioned over, outage is offered in the plug of front pressing cap, ante-chamber body side surface is provided with and hot-fluid
The inlet opening and fluid hole of body circulation unit connection, closes outage, inlet opening and fluid hole, with pressure in initial pressing process
The rock pore volume that carries out of system constantly reduces, and when the rock core raw material for loading is full of water, the fluid between rock core raw material is from hole
In be extruded, and a part of compaction pressure is born in simulation reaction cabin, the partial pressure is invalid pressure, with rock core body
Product further reduces, and is forced out fluid volume increase, and invalid pressure increase, when invalid pressure >=1/3 compaction pressure, can be opened
Front cavity outage valve discharge opeing, fluid in simulation reaction cabin is discharged, and is reduced fluid and is born pressure, so as to improve Effective Compaction
The filter layer that pressure, filter screen and filter paper are constituted can effectively stop that rock core raw material discharges diagenetic reaction control analogue means with liquid,
After rock sample volume is stable under design temperature pressure condition, outage is closed, open inlet opening and fluid hole valve, in circulation
Simulated formation water is injected in container, arranging the temperature of intelligence control constant temperature sleeve is used to simulate underground hot environment, by circulation vessel A and
Two circulation vessels of circulation vessel B realize respectively the forward and reverse circulation of simulated formation water, changed by arranging different temperatures,
Different salinities and simulated formation aqueous nature, so as to realize simulating effect of the high-temperature, high pressure fluid in diagenetic process, when using
When the artificial core for having prepared or true core carry out aforesaid operations, it is possible to achieve the simulation and stratum to Reservoir Seepage mechanism
Under the conditions of injection-production relation simulation.
Front pressing cap, piston, contiguous block and rear pressing cap and diagenetic reaction control simulation dress in diagenetic reaction control analogue means
Put between inwall and displacement guide post and displacement guide through hole between sealed by sealing ring, simulate hot fluid circulation
During rock core raw material be always positioned in intelligence control constant temperature sleeve, simulation Effective Compaction pressure up to 150MPa, simulation reaction temperature can
Up to 150 DEG C, warm-pressing system that can truly under simulation stratum condition so that calcareous, irony in raw material contained by natural salt and
There is the processes such as cementing, pressure solution, corrosion, explanation in clay mineral, can truly simulate in earth's crust diagenetic process on particle contact surface
The cementation such as calcareous, shale, therefore can be used to simulating the impact of diagenetic process and quantitative analysis difference factor to diagenesis and make
With；Due to its favorable sealing property, can long-time heat preservation and pressurize, with can high temperature, high pressure, work long hours the characteristics of；It is living
Plug and depression bar are driven by air compressor replys initial position, fills compared to existing small-sized core preparing device or seepage simulation
Put, the percolation experiment environment effective dimensions that the diagenetic reaction control analogue means that the present invention is provided is provided is 50*50* to the maximum
20cm, can prepare length up to 15cm, the large scale artificial core of diameter of up to 50cm.
Diagenetic reaction controls air admission hole, steam vent, fuel feed hole, outage, inlet opening, fluid hole, the discharge opeing of analogue means
Hole and the aperture all same in back pressure hole, each Kong Jun is easy to diagenetic reaction control simulation by snap joint and corresponding pipeline communication
The assembly and disassembly of device and the service of connection devices, each valve and pipeline are using unified standard in device, and component universality is strong；Into
Each inter-module of rock reaction controlling analogue means is sealed by sealing ring, it is ensured that four sealing spaces do not leak pressure；Front pressure
Cap is the structure that plug is combined with gland, and the gap between gland and plug is connected by the back pressure hole opened up in gland with extraneous
It is logical, the unlatching difficulty that diagenetic reaction controls analogue means is substantially reduced, make device easily operated；Offer in the cavity wall of front cavity
More than 2 fluid holes being parallel to each other, can realize different length according to the different adjustment fluid hole link positions of experiment rock core length
The simulation of rock core, different rock core position seepage environments and process.
Intelligence control constant temperature sleeve and built-in temperature transmitter provide temperature-controlled environment, pressure transmitter to simulate diagenetic process
With temperature transmitter carry parameter display function, it is measurable and show in pressing process simulate reaction cabin, hydraulic power capsule, heat
Temperature value in fluid circuit unit in the pressure value of liquid inflow/outflow end and intelligence control constant temperature sleeve；Displacement transducer passes through
Displacement guide post is connected with the piston in rear chamber, and by displacement transducer the deflection of rock core raw material can be obtained, and improves deformation
The measuring accuracy of amount；With the circuit communication of electrical component in power control switch control device, corresponding electricity consumption is opened as needed
Component, it is to avoid electricity consumption is wasted；Data acquisition unit is used for Real-time Collection temperature transmitter, pressure transmitter, electronic balance and displacement
The data of sensor, and record in computer is sent data to, the temperature, pressure, compacting displacement in hot fluid flow event becomes
The parameter such as change amount and discharge opeing volume is acquired and is recorded by data acquisition unit and computer, its acquisition and recording frequency 1s/ time
～60min/ time, the misregistration that manual record is likely to occur is avoided using automated collection systems, effectively reduce experiment behaviour
Make personnel amount and working strength, monitor in real time is carried out to hot fluid flow event, can be prevented effectively from because equipment fault etc. happens suddenly
Security incident caused by factor；Graduated cylinder and hydrops bottle are used to store and measure the volume for discharging liquid, the temperature of record, pressure
And the compressed coefficient that the parameters such as displacement can be used for calculating artificial core is compacted, the discharge opeing volume parameter of record can be used to calculate original
Water saturation and compacting after rock core the evaluating such as density, hole compression ratio, rock core effective permeability.
Circulation vessel A and circulation vessel B are divided into fluid cabin and the pressure chamber below fluid cabin by piston, and
And lower section is communicated with the three-way pipeline with connection valve and exhaust-valve, when carrying out hot fluid seepage simulation, circulation is first turned on
The connection valve of container A bottom, closing exhaust-valve, while opening circulation vessel B bottoms exhaust-valve, closing connection valve；Subsequently
Constant-flux pump is opened, constant-flux pump is set and is pumped into flow velocity, be pressed in fluid forces circulation vessel A in circulation vessel A by constant-flux pump
Piston upwards, and then make fluid in circulation vessel A (simulated formation water) enter compacting rock sample with certain flow rate from inlet opening
In, the fluid into rock sample is converged under differential pressure action to fluid hole, is flowed in circulation vessel B, as circulation vessel A by pipeline
After middle fluid emptying, close circulation vessel A connection valves, open exhaust-valve, while opening circulation vessel B connection valves, closing
Exhaust-valve, realizes fluid recycled back.
Compared with prior art, the HTHP hot fluid simulator that the present invention is provided, has an advantage in that：
1st, rock core compaction part (diagenetic reaction control analogue means) and power section (high temperature in the device that the present invention is provided
High-pressure pump) separate, reduce the volume and weight that core component diagenetic reaction controls analogue means, core (diagenetic reaction
Control analogue means) Combination Design, reduce cleaning, maintenance difficulties after experiment；
2nd, the aperture of each hole interface of diagenetic reaction control analogue means is identical in the device that the present invention is provided, can be using fast
Quick coupling is connected with corresponding pipeline, is easy to assemble, is dismantled, and valve, pipeline unified standard, component universality is good；
3rd, the device that the present invention is provided realizes the circulation of HTHP hot fluid, and diagenetic reaction control analogue means is effective
, up to 150MPa, operating temperature is up to 150 DEG C, and more than the 360h that can continuously work under 120～150 DEG C of hot conditions for pressure,
Can with the temperature and pressure under simulated formation full-scale condition, fluid system, with can high temperature, high pressure, work long hours and real-time control
Feature；
4th, to be capable of achieving the temperature in rock core pressing process, pressure and discharge opeing volume isoparametric for the device that the present invention is provided
Automatic data collection and record, its acquisition and recording frequency 1s/ time～60min/ time, avoiding manual record using automated collection systems can
The misregistration that can occur, effectively reduces experiment operator quantity and working strength；
5th, the present invention provide device can according to experiment needs, carry out diagenesis factor control simulation, seepage flow mechanism simulation and
Various physical simulation experiments such as oil reservoir injection-production relation simulation, the superperformance with a tractor serves several purposes.
Description of the drawings
The structural representation of the HTHP hot fluid Seepage Flow Simulation Test Unit that Fig. 1 is provided for the present invention.
Fig. 2 is the structural representation that diagenetic reaction controls analogue means.
Wherein, 1- diagenetic reactions control analogue means, 2- high-temperature high pressure pumps, 3- hot fluid circulation units, 4- hydrops bottles, 5-
Electronic balance, 6- computers, 7- pressure transmitters, 8- displacement transducers, 9- intelligence control constant temperature sleeves, 10- graduated cylinders, 11- supports, 12- valves
Door, 13- temperature transmitters, 14- dynamical elements, 15- data acquisition units, 16- power control switch, 17- circulation vessel A, 18-
Circulation vessel B, 19- piston, 20- constant-flux pumps, 21- three-way pipelines, 22- rear pressing caps, 23- rear chambers, 24- depression bars, 25- air inlets
Hole, 26- contiguous blocks, 27- front cavities, 28- inlet openings, 29- filter paper, 30- filter screens, 31- screwed holes, 32- glands, 33- plugs,
34- fluid holes, 35- stopples, 36- sealing rings, 37- threaded ends, 38- exhaust aperture layer, 39- displacement guide posts, 40- displacements are led
To through hole, 41- connection valves, 42- exhaust-valves, 43- back pressure hole, 44- outages.
Specific embodiment
The present invention is illustrated in detail with reference to the accompanying drawings and examples, present disclosure is not limited to following
Embodiment.
The HTHP hot fluid Seepage Flow Simulation Test Unit that the present invention is provided, its structure as depicted in figs. 1 and 2, including diagenesis
Reaction controlling analogue means 1 and the high-temperature high pressure pump 2, the hot fluid circulation unit 3 that connect with diagenetic reaction control analogue means
With dynamical element 14, using pneumatic reset, dynamical element selects air compressor, diagenetic reaction control analogue means to the present embodiment
Be externally provided with data acquisition unit 15 that computer 6 electrically connects with computer and with each power control switch 16 electrically connected with electrical component；
The diagenetic reaction control analogue means is as shown in Fig. 2 including front cavity 27, rear chamber 23 and connection front cavity
With the contiguous block 26 of rear chamber, contiguous block and the depression bar 24 vertical with contiguous block end face, contiguous block are provided through in contiguous block
Side offers the two reset through holes connected with rear chamber, respectively steam vent 38 and air admission hole 25, steam vent 38 and air inlet
Hole 25 is L-shaped, both ends open respectively positioned at contiguous block side and rear end face on, diagenetic reaction control analogue means pass through into
Pore is connected with air compressor, and piston 19, the threaded ends 37 that depression bar passes through two ends are equipped with front cavity and rear chamber
It is connected with 2 piston threads respectively, the end of front cavity and rear chamber is sealed respectively by front pressing cap and rear pressing cap 22, front
The end of pressure cap and rear pressing cap offers the screwed hole 31 for opening pressure cap, and the center of rear pressing cap offers vertically displacement
Guide through hole 40, is provided with displacement guide post 39 in displacement guide through hole, between front pressing cap and front cavity, rear pressing cap and rear chamber it
Between and contiguous block and depression bar between sealed by sealing ring 36, the piston in one end of displacement guide post and rear chamber
Connection, the other end is located at outside diagenetic reaction control analogue means and is connected with displacement transducer 8, opens up vertically in rear pressing cap
There are outage and fuel feed hole, outage is connected by the pipeline with valve with graduated cylinder 10, is radially opened up in the cavity wall of front cavity
There are inlet opening 28 and more than 2 fluid holes 34, inlet opening angle between front pressing cap, inlet opening and fluid hole is 180 °, its
In a fluid hole connect with hot fluid circulation unit, stopple 35 is provided with remaining fluid hole, the front pressing cap is by band outage
44 plug 33 and the gland 32 being sheathed on plug are constituted, and the plug is T-shaped, including closure plate and the set vertical with closure plate
Core, gland is sheathed on core and pushes against closure plate, and outage is opened in set core and by band valve and pressure transmitter
Pipeline connect with hydrops bottle 4, offer back pressure hole 43 in gland vertically, the gap between gland and plug passes through back pressure hole
It is in communication with the outside, the filter layer being made up of 2 metafiltration nets 30 and the filter paper 29 being located between 2 metafiltration nets, mistake is provided with front cavity
The closure plate end contact of filtering layer and front pressing cap, the air admission hole of diagenetic reaction control analogue means, steam vent, fuel feed hole, outage,
The aperture all same in inlet opening, fluid hole, outage and back pressure hole；
The hot fluid circulation unit includes constant-flux pump 20 and the circulation vessel A17 connected with constant-flux pump and circulation vessel
B18, circulation vessel A and circulation vessel B are respectively by the pipeline with valve 12 and pressure transmitter 8 and diagenetic reaction control simulation
The inlet opening of device front cavity is connected with fluid hole, and piston is equipped with two circulation vessels, and circulation vessel is separated by piston
For fluid cabin and the pressure chamber below fluid cabin, the two ends of circulation vessel respectively by upper end cover and lower end cover seal, under
End cap is provided with the three-way pipeline 21 connected with pressure chamber, and the drain pipe road A of three-way pipeline is connected with constant-flux pump, drain pipe road B
Liquid outlet at be communicated with graduated cylinder 10, be provided with the drain pipe road A connection valve 41, emptying is installed on drain pipe road B
Valve 42；
The electronic balance 5 electrically connected with data acquisition unit input, diagenetic reaction control simulation are provided with below hydrops bottle
The intelligence control constant temperature sleeve with temperature transmitter is arranged with device, circulation vessel A and circulation vessel B, temperature transmitter, pressure become
Device, electronic balance and displacement transducer is sent to be all connected with the input of data acquisition unit.
The HTHP hot fluid Seepage Flow Simulation Test Unit that the present invention is provided, its course of work is as follows：
1) in rock core raw material (sandstone particle, mud stone particle and natural salt) being positioned over into simulation reaction cabin, diagenesis is closed
Reaction controlling analogue means；
2) high-temperature high pressure pump is opened, high-temperature high pressure pump is entered high-pressure and hydraulic oil pump in hydraulic power capsule by pipeline, hydraulic pressure
Oil promotes piston and depression bar to move forward in pressure conduction to front cavity, and depression bar promotes piston reach in front cavity, suppresses rock
Heart raw material, the deflection of displacement sensor rock core raw material, the deflection of data acquisition unit collection rock core raw material and by data
Record, acquisition and recording frequency 1s/ time～60min/ time are transmitted into computer；
3) outage, inlet opening and fluid hole are closed in initial pressing process, are reduced with rock pore volume, fluid by from
Extrude in the hole of rock core raw material, and a part of compaction pressure is born in simulation reaction cabin, the partial pressure is invalid pressure
Power, as rock core volume further reduces, is forced out fluid volume increase, invalid pressure increase, when the compacting of invalid pressure >=1/3
During pressure, open carries out discharge opeing with the valve of front cavity outage connecting pipe, and fluid in simulation reaction cabin is expelled to into hydrops
In bottle, reduce fluid and bear pressure, improve Effective Compaction pressure, the weight of fluid is discharged in the electronic balance measurement below hydrops bottle
And weight information is delivered in data acquisition unit, data acquisition unit records the data transfer for gathering into computer, collection note
Record frequency 1s/ time～60min/ time；
4) after rock sample volume is stable under design temperature and setting pressure condition, outage is closed, is opened and inlet opening
With the valve of fluid hole connecting pipe, simulated formation water is poured in the fluid cabin of circulation vessel A, the temperature of intelligence control constant temperature sleeve is set
Spend for simulating underground hot environment, the fluid heated in simulated formation water and diagenetic reaction control analogue means forms hot-fluid
Body, after hot fluid temperature is stable, opens the connection valve below circulation vessel A, closes exhaust-valve, while opening circulation vessel
Exhaust-valve, closing connection valve below B；
5) constant-flux pump is opened, constant-flux pump is set and pumps into flow velocity, stream is pressed into in the pressure chamber of circulation vessel A by constant-flux pump
Body promotes piston upwards in circulation vessel A, and then makes hot fluid in circulation vessel A fluids cabin anti-from diagenesis with certain flow rate
Analogue means inlet opening should be controlled to enter in compacting rock sample；
6) fluid into rock sample is converged under differential pressure action to fluid hole, and by pipeline the fluid of circulation vessel B is flowed into
In cabin, after hot fluid emptying in circulation vessel A fluids cabin, close the connection valve of circulation vessel A, open exhaust-valve, while
Open the connection valve of circulation vessel B, close exhaust-valve, realize hot fluid recycled back；
7) pressure transmitter and temperature transmitter are detected and simulate in pressing process that reaction cabin, hydraulic power capsule, hot fluid are followed
Temperature value in ring element in the pressure value of liquid inflow/outflow end and intelligence control constant temperature sleeve, and the data of detection are delivered to
In data acquisition unit, data acquisition unit records the data transfer for gathering into computer, 1s/ time～60min/ of acquisition and recording frequency
It is secondary；
8) fluid pressurization, the high-pressure fluid in reset cabin are filled with reset cabin by dynamical element after rock core compacting terminates
Piston and depression bar is promoted to be moved rearwards by, piston and depression bar extrude the high pressure liquid force feed in hydraulic power capsule into graduated cylinder, high pressure
Hydraulic oil is completely exhausted out piston and depression bar simultaneously and is retracted into initial position.
The parameters such as the temperature of record, pressure and compacting displacement can be used to calculate the compressed coefficient of artificial core, the row of record
Liquid volume parameter can be used to calculating the density of rock core, hole compression ratio, rock core after original water saturation and compacting and effectively ooze
The evaluatings such as saturating rate.
Claims (10)
1. a kind of HTHP hot fluid Seepage Flow Simulation Test Unit, at least connects including rock core storing apparatus and with rock core storing apparatus
Fluid circuit unit, it is characterised in that：The rock core storing apparatus are that diagenetic reaction controls analogue means, fluid circuit unit
For hot fluid circulation unit, diagenetic reaction control analogue means is externally provided with high-temperature high pressure pump in communication；The diagenetic reaction
Control analogue means includes the contiguous block of the front cavity with piston, the rear chamber with piston and connection front cavity and rear chamber,
Contiguous block and the depression bar vertical with contiguous block end face are provided through in contiguous block, depression bar two ends are connected respectively with 2 pistons, front
The end of cavity and rear chamber is sealed respectively by front pressing cap and rear pressing cap, offer vertically in rear pressing cap fuel feed hole and
Outage, high-temperature high pressure pump is connected by fuel feed hole with rear chamber, offer vertically in front pressing cap for connect front cavity with
Extraneous outage, radially offers inlet opening and fluid hole in the cavity wall of the front cavity, hot fluid circulation unit passes through
Inlet opening and fluid hole are connected with diagenetic reaction control analogue means；The hot fluid circulation unit include constant-flux pump and with it is flat
The circulation vessel A and circulation vessel B, circulation vessel A and circulation vessel B of stream pump connection is respectively by band valve and pressure transmitter
Pipeline and diagenetic reaction control the inlet opening and fluid hole of analogue means front cavity and connect, diagenetic reaction control analogue means,
The intelligence control constant temperature sleeve with temperature transmitter is arranged with circulation vessel A and circulation vessel B.
2. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 1, it is characterised in that：Diagenetic reaction controls mould
Intend device be externally provided with data acquisition unit that computer electrically connects with computer and with each power control switch electrically connected with electrical component,
Temperature transmitter and pressure transmitter are all connected with the input of data acquisition unit.
3. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 2, it is characterised in that：Diagenetic reaction controls mould
Intend device and be externally provided with graduated cylinder and hydrops bottle, graduated cylinder is connected by the pipeline with valve with the outage of rear pressing cap, and hydrops bottle passes through
Pipeline with valve and pressure transmitter is connected with the outage of front pressing cap, is provided with below hydrops bottle and data acquisition unit input
The electronic balance of end electrical connection.
4. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 2, it is characterised in that：Rear pressing cap centrally along
Axially displacement guide through hole is offered, displacement guide post, displacement guide post and displacement guide through hole are provided with displacement guide through hole
Between sealed by sealing ring, one end of displacement guide post is connected with the piston in rear chamber, and the other end is positioned at diagenetic reaction control
Analogue means processed is outer and is connected with the displacement transducer electrically connected with data acquisition unit input.
5. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 1, it is characterised in that：The front pressing cap is by blocking up
Head and the gland being sheathed on plug are constituted, and plug is T-shaped, including closure plate and the set core vertical with closure plate, and gland is sheathed on set
On core and push against closure plate, outage is located in set core, offers back pressure hole in gland vertically, between gland and plug between
Gap is in communication with the outside by back pressure hole.
6. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 1, it is characterised in that：In the cavity wall of front cavity
More than 2 fluid holes being parallel to each other are offered, one of fluid hole is connected with hot fluid circulation unit, in remaining fluid hole
Stopple is equipped with, radial direction angle of the inlet opening between front pressing cap, inlet opening and fluid hole is 180 °.
7. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 1, it is characterised in that：Be provided with front cavity by
The filter layer that 2 metafiltration nets and the filter paper being located between 2 metafiltration nets are constituted, filter layer and front pressing cap end contact.
8. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 5, it is characterised in that：Offer in contiguous block
The two reset through holes connected with rear chamber, reset through hole is L-shaped, and both ends open is respectively positioned at the side of contiguous block and rear end face
On, diagenetic reaction control analogue means is externally provided with dynamical element, and dynamical element is connected by reset through hole with rear chamber.
9. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 8, it is characterised in that：Diagenetic reaction controls mould
Intend the aperture all same in reset through hole, fuel feed hole, outage, inlet opening, fluid hole, outage and the back pressure hole of device, front pressure
Sealed by sealing ring between cap and front cavity, between rear pressing cap and rear chamber and between contiguous block and depression bar.
10. HTHP hot fluid Seepage Flow Simulation Test Unit according to claim 1, it is characterised in that：Circulation vessel A and follow
Piston is equipped with two circulation vessels of ring container B, circulation vessel is divided into fluid cabin and positioned at fluid cabin lower section by piston
Pressure chamber, the two ends of circulation vessel are equipped with respectively by the end of upper end cover and lower end cover seal, upper end cover and bottom end cover
Sealing ring, bottom end cover is provided with the three-way pipeline connected with pressure chamber, and the drain pipe road A of three-way pipeline is connected with constant-flux pump, gone out
Graduated cylinder is communicated with the liquid outlet of liquid pipe road B, connection valve, the row of being provided with drain pipe road B are installed on the drain pipe road A
Empty valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345419.5A CN104897551B (en) | 2015-06-19 | 2015-06-19 | High-temperature high-pressure thermal fluid seepage simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510345419.5A CN104897551B (en) | 2015-06-19 | 2015-06-19 | High-temperature high-pressure thermal fluid seepage simulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104897551A CN104897551A (en) | 2015-09-09 |
| CN104897551B true CN104897551B (en) | 2017-05-10 |
Family
ID=54030354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510345419.5A Active CN104897551B (en) | 2015-06-19 | 2015-06-19 | High-temperature high-pressure thermal fluid seepage simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104897551B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540035B (en) * | 2020-11-30 | 2022-10-14 | 核工业北京化工冶金研究院 | Ultrasonic infiltration enhancement experimental method for low-permeability sandstone uranium ores |
| CN112727418B (en) * | 2021-01-20 | 2022-09-02 | 太原理工大学 | Simulation device for extracting oil shale from high-temperature fluid under control of multivariate factors |
| CN112903566B (en) * | 2021-03-02 | 2023-05-12 | 东北石油大学 | Full-diameter rock core radial permeability testing tool |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371877A1 (en) * | 1988-11-30 | 1990-06-06 | Elf Aquitaine Production | Device for measuring the flow of fluid through a porous body |
| CN101446542A (en) * | 2008-12-15 | 2009-06-03 | 南通市飞宇石油科技开发有限公司 | Triaxial core holder |
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN103543092A (en) * | 2013-10-31 | 2014-01-29 | 山东科技大学 | Rock core clamp holder capable of simulating complex migration process of formation fluid and using method of rock core clamp holder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BRPI1008534A2 (en) * | 2009-02-11 | 2016-03-01 | Mi Llc | well borehole fluid testing apparatus and methods |
-
2015
- 2015-06-19 CN CN201510345419.5A patent/CN104897551B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0371877A1 (en) * | 1988-11-30 | 1990-06-06 | Elf Aquitaine Production | Device for measuring the flow of fluid through a porous body |
| CN101446542A (en) * | 2008-12-15 | 2009-06-03 | 南通市飞宇石油科技开发有限公司 | Triaxial core holder |
| CN102411044A (en) * | 2011-12-05 | 2012-04-11 | 中国石油大学(华东) | Diagenesis simulation experimental apparatus and method |
| CN103543092A (en) * | 2013-10-31 | 2014-01-29 | 山东科技大学 | Rock core clamp holder capable of simulating complex migration process of formation fluid and using method of rock core clamp holder |
Non-Patent Citations (2)
| Title |
|---|
| Study on the Nonlinear Dynamic Characteristic of Cone Penetrate Test Curve;Jiangdong Cai et al.;《The 9th International Conference for Young Computer Scientists》;20081212;第2830-2834页 * |
| 泥页岩测试专用三轴岩心夹持器的研制与应用;余维初等;《石油天然气学报（江汉石油学院学报）》;20131231;第35卷(第12期);第163-165页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104897551A (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112145155B (en) | Experimental method of evaluation device capable of eccentrically testing cementing quality of first interface of well cementation | |
| CN207194886U (en) | A kind of HTHP bottom and edge water huff and puff experimental provision | |
| CN203808987U (en) | Two-dimensional visual sand filling model for simulating in-layer heterogeneity and two-dimensional visual seepage test device | |
| CN104407103B (en) | A kind of multi-angle acid corrosion fracture test set | |
| CN103556994B (en) | The experiment detecting system of fractured-vuggy reservoir remaining oil distribution and detection method | |
| CN103048431B (en) | Hydrofracture propping agent settlement and permeability testing device | |
| CN202339307U (en) | Device for determining water adsorption and diffusion coefficient of mud shale | |
| CN208206964U (en) | Simulate high-pressure slip-casting device under buried stratum river channels | |
| CN104897551B (en) | High-temperature high-pressure thermal fluid seepage simulation device | |
| CN110924933A (en) | Visual experiment method for dynamically simulating shale fracturing fracture network | |
| CN103352680B (en) | Foam based on the integration of pit shaft oil reservoir is handled up sediment outflow experimental facilities and method | |
| CN105096719A (en) | Anisotropic two-dimensional visual sand filling model in simulation layer and two-dimensional visual seepage experimental device | |
| CN111963118B (en) | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation | |
| CN105092446A (en) | Two-dimensional visual percolation experiment method capable of simulating in-layer heterogeneity | |
| CN104723441B (en) | A kind of multifunctional artificial rock core preparing instrument | |
| CN105804738B (en) | A kind of mud shale wellbore stability and integrality Visual evaluation device | |
| CN108266166B (en) | Experimental device and method for evaluating fluctuation oil recovery micro-jet permeability-increasing mechanism of fractured reservoir | |
| CN110221036A (en) | Water-retaining production " sound emission-infra-red radiation " experimental system with seepage apparatus | |
| CN201654010U (en) | Plugging tester | |
| CN106482924A (en) | Rock hydrocarbon simulated flowing apparatus | |
| CN203335049U (en) | Foam taking-in and sending-out sand discharging experimental device based on shaft and oil reservoir integration | |
| CN203081430U (en) | High-temperature and high-pressure sand bed leaking stoppage simulation device | |
| CN205689204U (en) | Large scale fracture-cavity type carbonate well testing experimental provision | |
| CN113882837B (en) | Water cone morphological simulation and water control viscosity reduction experimental device and method for bottom water heavy oil reservoir horizontal well | |
| CN110441221A (en) | Full diameter shale core ring packing cabin clamping device and measurement technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |