CN109356575A - The multidirectional seepage flow coupling of rock core monitors bottom water coning device - Google Patents
The multidirectional seepage flow coupling of rock core monitors bottom water coning device Download PDFInfo
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- CN109356575A CN109356575A CN201811220956.7A CN201811220956A CN109356575A CN 109356575 A CN109356575 A CN 109356575A CN 201811220956 A CN201811220956 A CN 201811220956A CN 109356575 A CN109356575 A CN 109356575A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000011435 rock Substances 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 239000011229 interlayer Substances 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 230000003542 behavioural effect Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 15
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000004088 simulation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/32—Preventing gas- or water-coning phenomena, i.e. the formation of a conical column of gas or water around wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
A kind of multidirectional seepage flow coupling of rock core monitors bottom water coning device, it is formed by monitoring bottom water coning, bottom water injected system, interlayer injected system, confining pressure system and back pressure metering system more, more monitoring bottom water conings are T-shaped core holding unit, clamper or so holds interlayer injected system in parallel, upper end connects back pressure metering system, lower end is connected with bottom water injected system, and middle part connects confining pressure system, and whole device is placed in baking oven；Interlayer injected system is made of beaker, constant speed and constant pressure pump, gas cylinder, gas pressurization system and intermediate receptacle, and the top and bottom of pressure-bearing intermediate receptacle are accessed after gas pressurization system and constant speed and constant pressure pump connecting valve；Back pressure metering system is made of back-pressure valve, back pressure container, backpressure pump and outlet apparatus for metering fluids, and core holding unit upper end connects back-pressure valve and outlet apparatus for metering fluids；Bottom water injected system is composed in series by beaker, constant speed and constant pressure pump and intermediate receptacle, and is connected to bottom water coning lower end by valve.
Description
Technical field
The invention belongs to oil gas experimental technique fields, are related to a kind of experimental provision for simulating oil-gas reservoir bottom water coning, especially
Be related to it is a kind of coupled using true core with horizontal, vertical both direction seepage flow, can monitor simultaneously temperature in rock core vertical direction,
The bottom water coning imitative experimental appliance of pressure and saturation degree variation.
Background technique
Bottom-water reservoir is a kind of common Oil-gas Accumulation Types, in such oil-gas reservoir individual well production process, with oil gas
Output bottom water can be gradually increasing to form water cone, make oil/gas well premature water breakthrough if bottom water coning is too fast, it is aqueous to will lead to individual well
Rapid increase, yield die-off, and have seriously affected oil/gas well and have normally produced, and can make expense increase of harnessing the river, oil gas well mining benefit
It is deteriorated.Therefore, understanding bottom water coning rule, and then formulating scientific and reasonable development plan is the most important research of such oil-gas reservoir
Content.
Indoor displacement test is the most important research means for recognizing bottom water coning rule, and bottom-water reservoir production process was both
There is radially oil gas flowing, and has vertical upper bottom water coning displacement.Conventional rock core holder is one-dimensional single-phase flow clamper, very
In hardly possible simulation bottom water reservoir production process the case where the flowing of multidirectional fluid coupling, traditional bottom water coning simulation transposition mainly for
Sandpack column, gravel pack in closed pressure resistant vessel and is saturated oil gas simulation oil gas reservoir, is implanted into gravel middle and upper part
The pipeline analog producing well of aperture, lower part connects the injection of high pressure injection system analog bottom water, and can inlay in wall surface of the container can
Glass wall position bottom water coning phenomenon can be observed when simulation well is produced depending on observation window.What such device used fills out
There are larger differences with true reservoir for sand mo(u)ld type, and are limited by scale of model, although vertical can above simulate bottom water very well
Energy situation, but limited radial diameter can make the supply of radial oil gas insufficient, and bottom water coning rule is caused to be deposited with practical oil reservoir
In larger difference.
Summary of the invention
The purpose of the present invention is to provide a kind of bottom water coning experimental provisions carried out using true reservoir core, fit simultaneously
It is tested for gas reservoir and oil reservoir bottom water coning.The device based on radial and vertical seepage coupling, and to vertical direction temperature, pressure
Power and a real-time monitoring is carried out to resistivity, to react bottom water coning rule.
In order to solve the above-mentioned technical problem, the present invention is accomplished by the following way:
A kind of multidirectional seepage flow coupling of rock core monitors bottom water coning devices, by monitor more bottom water coning, bottom water injected system,
Interlayer injected system, confining pressure system and back pressure metering system composition, more monitoring bottom water conings are T-shaped core holding unit,
There are interfaces for the left and right and upper and lower end face of clamper, and wherein left and right ends are connected in parallel interlayer injected system, and upper end connects back to
Metering system is pressed, lower end is connected with bottom water injected system, and monitor connects confining pressure system more in the middle part of bottom water coning, whole device is placed in
It can be in the baking oven that rock core is heated.
Further, the interlayer injected system is by filling with beaker, the constant speed and constant pressure pump, gas cylinder, gas pressurization system of water
It being formed with pressure-bearing intermediate receptacle, the gas pressurization system for being connected with gas cylinder is pumped with the constant speed and constant pressure for filling with the beaker of water is connected with,
The top and bottom of pressure-bearing intermediate receptacle, another more monitorings of outlet connection in pressure-bearing intermediate receptacle top are respectively connected to after connecting valve
The left and right outlet end of bottom water coning.
Further, the back pressure metering system is by back-pressure valve, back pressure container, backpressure pump and outlet apparatus for metering fluids group
At core holding unit upper end outlet is sequentially connected back-pressure valve and outlet apparatus for metering fluids after pressure gauge and valve, and back pressure is held
It is connected to after device and backpressure pump are in parallel among back-pressure valve and outlet apparatus for metering fluids, back pressure metering system can control displacement outlet
The back pressure at end, and output oil and gas and water is not measured.
Further, the confining pressure system includes confining pressure container and confining pressure pump, is connected after confining pressure container and confining pressure pump parallel connection
In the middle part of mostly monitoring bottom water coning.
Further, hold among beaker, constant speed and constant pressure pump and pressure-bearing piston formula of the bottom water injected system by filling with water
Device is composed in series, and by valve be connected to monitor bottom water coning lower ends, bottom water injected system can to bottom water coning bottom into
Row pressure water injection simulates the high pressure bottom water of oil-gas reservoir.
Core holding unit is bilateral symmetry comprising cylinder system and rubber sleeve system, cylinder system, by main cylinder
Body, left side cylinder, right edge cylinder and lower shell composition, cylinder system are located at core holding unit outermost, the main cylinder
Positioned at T-shaped core holding unit branch crossover location, left and right ends are threadedly coupled left side cylinder and right edge cylinder respectively,
Lower end is welded with lower shell；The rubber sleeve system is made of main gum cover, left side gum cover and right edge gum cover, main gum cover upper end
Two sides are respectively provided with the hole for left side gum cover and the insertion of right edge gum cover, and rubber sleeve system is located in cylinder system, and rock core is placed
In in rubber sleeve system, rock core or so and upper and lower side are respectively arranged with left plug, right plug and upper plug head, lower end cap, Jin Eryou
Corresponding left adjustment cap, right adjustment cap and upper adjustment cap, lower adjusting crown fasten, and left side gum cover end is connected with a left side
Coning sleeve, and then the left pressure ring by being fixed on left side cylinder compresses sealing, is connected with forward flange, rear method before and after main cylinder
Orchid, and be pressed respectively against preceding plug, realize sealing on rear plug.
Further, it is symmetrically provided with gaging hole before and after the lower shell equally spaced position, is also provided in plug before and after main cylinder
One contralateral exposure, while main gum cover position corresponding to cylinder gaging hole is provided with gaging hole, the measuring points that monitor are arranged in cylinder gaging hole more
Place, while monitoring to the temperature of position rock core, pressure and resistivity, it is different high by the way that rock core can be calculated to resistivity
The situation of change of saturation degree on degree, reacts the behavioral characteristics of bottom water coning.
Compared with prior art, the invention has the benefit that
Bottom water heap of the invention into device based on radial and vertical seepage coupling, and to vertical direction temperature, pressure and
A real-time monitoring is carried out to resistivity, to react bottom water coning rule, has been filled up at present without using true core to simulate bottom water cone
Into the blank of laboratory apparatus, the bottom water coning experiment of gas reservoir and oil reservoir can be suitable for simultaneously, it through the invention can be to oil-gas reservoir bottom
Water coning rule carries out more accurate experimental study.
Detailed description of the invention
Fig. 1 is bottom water coning experimental provision flow chart of the present invention.
Fig. 2 is the structural schematic diagram of bottom water coning of the present invention.
Fig. 3 is the lateral structure schematic diagram of bottom water coning of the present invention.
Each label is respectively as follows: in figure
1, beaker, 2, constant speed and constant pressure pump, 3, valve, 4, gas cylinder, 5, gas pressurization system, 6, pressure-bearing intermediate receptacle, 7, hold
Press piston type intermediate receptacle, 8, back-pressure valve, 9, back pressure container, 10, backpressure pump, 11, outlet apparatus for metering fluids, 12, confining pressure appearance
Device, 13, confining pressure pump, 14, monitor bottom water coning, 15, left adjustment cap, 16, left pressure ring, 17, left coning sleeve, 18, left plug,
19, left side gum cover, 20, left side cylinder, 21, main cylinder, 22, main gum cover, 23, lower shell, 24, forward flange, 25, preceding stifled
Head, 26, monitor measuring point.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.
As shown in Figure 1, a kind of multidirectional seepage flow coupling of rock core monitors bottom water coning device, by monitoring bottom water coning, bottom more
Water injected system, interlayer injected system, confining pressure system and back pressure metering system composition, more monitoring bottom water conings 14 are T word
Shape core holding unit, there are interfaces for the left and right and upper and lower end face of clamper, and wherein left and right ends are connected in parallel interlayer injection system
System, upper end connect back pressure metering system, and lower end is connected with bottom water injected system, and monitor connects confining pressure system more in the middle part of bottom water coning
System, whole device is placed in can be in the baking oven that rock core is heated.
Further, the interlayer injected system by filling with the beaker 1 of water, constant speed and constant pressure pumps 2, gas cylinder 4, gas boosting system
System 5 and pressure-bearing intermediate receptacle 6 form, and are connected with the gas pressurization system of gas cylinder and are connected with the constant speed and constant pressure for filling with the beaker of water
It pumps, the top and bottom of pressure-bearing intermediate receptacle is respectively connected to after connecting valve 3, another outlet connection in pressure-bearing intermediate receptacle top is more
Monitor the left and right outlet end of bottom water coning.Interlayer injected system can carry out high-pressure gas injection to the rock core in bottom water coning or so branch
Or oiling, when simulating oil reservoir bottom water coning, upper end valve is closed, and lower end valve is opened, and pressure-bearing intermediate receptacle is packed into crude oil；When
When simulating gas reservoir bottom water coning, lower end valve is closed, and upper end valve is opened, and pressure-bearing intermediate receptacle is packed into gas.
Further, the back pressure metering system is by back-pressure valve 8, back pressure container 9, backpressure pump 10 and outlet fluid metering dress
11 compositions are set, core holding unit upper end outlet is sequentially connected back-pressure valve and outlet apparatus for metering fluids after pressure gauge and valve,
It is connected to after back pressure container and backpressure pump are in parallel among back-pressure valve and outlet apparatus for metering fluids, back pressure metering system is controllable to be driven
For the back pressure of outlet end, and output oil and gas and water is not measured.
Further, the confining pressure system includes confining pressure container and confining pressure pump, is connected after confining pressure container and confining pressure pump parallel connection
In the middle part of mostly monitoring bottom water coning.
Further, among beaker 1, constant speed and constant pressure pump 2 and pressure-bearing piston formula of the bottom water injected system by filling with water
Container 7 is composed in series, and is connected to more monitoring bottom water coning lower ends by valve, and bottom water injected system can be to bottom water coning bottom
Pressure water injection is carried out, the high pressure bottom water of oil-gas reservoir is simulated.
As shown in figures 2-3, core holding unit is bilateral symmetry comprising cylinder system and rubber sleeve system, cylinder
System is made of main cylinder 21, left side cylinder 20, right edge cylinder and lower shell 23, and cylinder system is located at core holding unit
Outermost, the main cylinder 21 are located at T-shaped core holding unit branch crossover location, and left and right ends are threadedly coupled left side respectively
Side cylinder and right edge cylinder, lower end are welded with lower shell；The rubber sleeve system is by main gum cover 22, left side gum cover 19 and the right side
Side gum cover is constituted, and main gum cover upper end two sides are respectively provided with the hole for left side gum cover and the insertion of right edge gum cover, rubber sleeve system
In cylinder system, rock core is placed in rubber sleeve system, and rock core or so and upper and lower side are respectively arranged with left plug 18, right stifled
Head and upper plug head, lower end cap, and then fastened by corresponding left adjustment cap 15, right adjustment cap and upper adjustment cap, lower adjusting crown,
20 end of left side gum cover is connected with left coning sleeve 17, so the left pressure ring 16 by being fixed on left side cylinder compress it is close
Envelope is connected with forward flange 24, rear flange before and after main cylinder, and is pressed respectively against preceding plug 25, realizes on rear plug and seal.
Further, it is symmetrically provided with gaging hole before and after the lower shell equally spaced position, is also provided in plug before and after main cylinder
One contralateral exposure, while main gum cover position corresponding to cylinder gaging hole is provided with gaging hole, it is monitor the setting of measuring point 26 in cylinder survey more
It at hole, while monitoring to the temperature of position rock core, pressure and resistivity, by the way that rock core difference can be calculated to resistivity
The situation of change of saturation degree in height, reacts the behavioral characteristics of bottom water coning.
The above is only embodiments of the present invention, is stated again, and those skilled in the art are come
It says, without departing from the principle of the present invention, several improvement can also be carried out to the present invention, these improvement are also included in the present invention
In scope of protection of the claims.
Claims (3)
1. a kind of multidirectional seepage flow coupling of rock core monitors bottom water coning device, it is characterised in that: by monitoring bottom water coning, bottom water more
Injected system, interlayer injected system, confining pressure system and back pressure metering system composition, more monitoring bottom water conings are T-shaped rock
Heart clamp holder, there are interfaces for the left and right and upper and lower end face of clamper, and wherein left and right ends are connected in parallel interlayer injected system, on
End connection back pressure metering system, lower end are connected with bottom water injected system, and monitor connects confining pressure system more in the middle part of bottom water coning, entirely
Device is placed in can be in the baking oven that rock core is heated；
The interlayer injected system is by filling with beaker, constant speed and constant pressure pump, gas cylinder, gas pressurization system and the pressure-bearing intermediate receptacle of water
Composition, the gas pressurization system for being connected with gas cylinder are pumped with the constant speed and constant pressure for filling with the beaker of water is connected with, after connecting valve respectively
Access the top and bottom of pressure-bearing intermediate receptacle, the left and right of another more monitoring bottom water conings of outlet connection in pressure-bearing intermediate receptacle top
Outlet end；
The back pressure metering system is made of back-pressure valve, back pressure container, backpressure pump and outlet apparatus for metering fluids, core holding unit
Upper end outlet is sequentially connected back-pressure valve and outlet apparatus for metering fluids after pressure gauge and valve, and back pressure container is in parallel with backpressure pump
After be connected to back-pressure valve and outlet apparatus for metering fluids among；
The confining pressure system includes confining pressure container and confining pressure pump, is connected to more monitoring bottom water cones after confining pressure container and confining pressure pump parallel connection
Into middle part；
The bottom water injected system is composed in series by the beaker, constant speed and constant pressure pump and pressure-bearing piston formula intermediate receptacle for filling with water, and
More monitoring bottom water coning lower ends are connected to by valve.
2. the multidirectional seepage flow coupling of a kind of rock core according to claim 1 monitors bottom water coning device, it is characterised in that: institute
Stating core holding unit is bilateral symmetry comprising cylinder system and rubber sleeve system, cylinder system, by main cylinder, left side
Side cylinder, right edge cylinder and lower shell composition, cylinder system are located at core holding unit outermost, and the main cylinder is located at T word
Shape core holding unit branch crossover location, left and right ends are threadedly coupled left side cylinder and right edge cylinder, lower end weldering respectively
It is connected to lower shell；The rubber sleeve system is made of main gum cover, left side gum cover and right edge gum cover, and main gum cover upper end two sides are each
Equipped with the hole for left side gum cover and the insertion of right edge gum cover, rubber sleeve system is located in cylinder system, and rock core is placed in rubber
In set system, rock core or so and upper and lower side are respectively arranged with left plug, right plug and upper plug head, lower end cap, and then by corresponding
Left adjustment cap, right adjustment cap and upper adjustment cap, lower adjusting crown fasten, and left side gum cover end is connected with left taper
Set, and then the left pressure ring by being fixed on left side cylinder compresses sealing, is connected with forward flange, rear flange before and after main cylinder, and
It is pressed respectively against preceding plug, realizes sealing on rear plug.
3. the multidirectional seepage flow coupling of a kind of rock core according to claim 2 monitors bottom water coning device, it is characterised in that: institute
It states lower shell equally spaced position front and back and is symmetrically provided with gaging hole, be also provided with a contralateral exposure, while main gum cover in plug before and after main cylinder
The position corresponding to cylinder gaging hole is provided with gaging hole, and the measuring points that monitor are arranged at cylinder gaging hole more, while monitoring to a position
Temperature, pressure and the resistivity of rock core, to react the behavioral characteristics of bottom water coning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220956.7A CN109356575B (en) | 2018-10-19 | 2018-10-19 | Core multidirectional seepage coupling multi-monitoring bottom water coning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811220956.7A CN109356575B (en) | 2018-10-19 | 2018-10-19 | Core multidirectional seepage coupling multi-monitoring bottom water coning device |
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| CN109356575A true CN109356575A (en) | 2019-02-19 |
| CN109356575B CN109356575B (en) | 2022-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814656A (en) * | 2021-03-17 | 2021-05-18 | 成都理工大学 | Large-scale high-temperature high-pressure simulation device and method for bottom water sandstone oil reservoir development |
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| HUEI-TING LIN: "Inorganic chemistry, gas compositions and dissolved organic carbon in fluids from sedimented young basaltic crust on the Juan de Fuca Ridge flanks", 《GEOCHIMICA ET COSMOCHIMICA ACTA》 * |
| 沈伟军: "裂缝性气藏水侵机理物理模拟", 《中南大学学报(自然科学版)》 * |
| 董大鹏: "分子膜驱油提高驱油效率的实验室研究", 《断块油气田》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814656A (en) * | 2021-03-17 | 2021-05-18 | 成都理工大学 | Large-scale high-temperature high-pressure simulation device and method for bottom water sandstone oil reservoir development |
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|---|---|
| CN109356575B (en) | 2022-02-18 |
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