CN102797458B - For the three-dimensional simulation device of bottom and edge water - Google Patents

For the three-dimensional simulation device of bottom and edge water Download PDF

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Publication number
CN102797458B
CN102797458B CN201210187362.7A CN201210187362A CN102797458B CN 102797458 B CN102797458 B CN 102797458B CN 201210187362 A CN201210187362 A CN 201210187362A CN 102797458 B CN102797458 B CN 102797458B
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China
Prior art keywords
accommodating cavity
water
gland
sidewall
measurement point
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CN201210187362.7A
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Chinese (zh)
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CN102797458A (en
Inventor
程林松
赵伦
刘佳
范子菲
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中国石油大学(北京)
中国石油天然气股份有限公司
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Publication of CN102797458A publication Critical patent/CN102797458A/en
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Abstract

The present invention is a kind of three-dimensional simulation device for bottom and edge water, and this device comprises the detachable movable side wall that a body and is arranged at body side; Be provided with accommodating cavity in body, bodies top is provided with gland, and gland bottom is provided with piston; Gland is provided with air vent that is multiple and accommodating cavity conducting; The salable annular groove that dividing plate is set is provided with in accommodating cavity surrounding sidewall; The each wall of body and gland are provided with multiple poroid functional measurement point, and functional measurement point and accommodating cavity control conducting; Granular porous medium is full of in accommodating cavity; Multiple tubing string for simulation wellbore hole is provided with in granular porous medium in accommodating cavity.This device can carry out physical simulation experiment to the bottom and edge water of different reservoir thickness, Different Strata inclination angle, different displacement mode, the exploitation of different well pattern well type, thus studies the oil-water seepage mechanism of this oil-gas reservoir, carries out different development scheme effect assessment.

Description

For the three-dimensional simulation device of bottom and edge water
Technical field
The invention relates to a kind of experimental facilities for multiphase fluidflow law study, particularly relate to a kind of for the three-dimensional simulation device of bottom and edge water of simulating Different Strata inclination angle, different water body type, many well type are developed jointly.
Background technology
Three-dimensional oil reservoir physical simulation techniques can reflect subsurface fluid movement rule and extensive use in the oil industry more really, the domestic and international physical simulation experiment for bottom water reservoir exploitation is more at present, but existing two-dimentional experimental facilities reckons without the similitude with oil field; Existing three-dimensional experimental device reckons without observes bottom water coning rule, and can not the experiments of measuring device internal flow characteristics of motion.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of three-dimensional simulation device for bottom and edge water, to overcome the defect of prior art.
Summary of the invention
The object of the present invention is to provide a kind of three-dimensional simulation device for bottom and edge water, to simulate the bottom and edge water under different well pattern and the exploitation of different well type, under can condition of high voltage being studied by this device, oil-water seepage mechanism in the bottom and edge water at Different Strata inclination angle, carries out the different development scheme effect assessment of bottom water reservoir simultaneously.
The object of the present invention is achieved like this, a kind of three-dimensional simulation device for bottom and edge water, and this analogue means is made up of a cubic container; This cubic container comprises the gland that a body and is arranged at bodies top, accommodating cavity is provided with in body, gland bottom is provided with the piston identical with accommodating cavity opening shape, and described gland is provided with multiple air vent, and described air vent runs through piston and accommodating cavity conducting; One sidewall of described body is the movable side wall that can dismantle, and the internal face around described body surrounding sidewall is at least provided with an annular groove, and the bottom surface of described annular groove and body be arranged in parallel, and in described annular groove, removably sealing is embedded dividing plate; The sidewall of body or gland are provided with multiple poroid functional measurement point, and described functional measurement point and accommodating cavity control conducting; Be full of granular porous medium in described accommodating cavity, described piston to be stretched in accommodating cavity by accommodating cavity opening part and is installed with on granular porous medium; Multiple tubing string for simulation wellbore hole is provided with in granular porous medium in described accommodating cavity; Described accommodating cavity inner bottom surface and sidewall are provided with guiding gutter, and the bottom surface of cubic container and sidewall are provided with the water injection hole with guiding gutter conducting.
In a better embodiment of the present invention, the guiding gutter on described body sidewall is arranged on above or below described annular groove.
In a better embodiment of the present invention, described accommodating cavity inner bottom surface is provided with a steel plate, and the guiding gutter on described body bottom surface is the upper surface being arranged on steel plate, and described steel plate is provided with the open-work with guiding gutter and water injection hole conducting.
In a better embodiment of the present invention, described guiding gutter is many ring-shaped grooves.
In a better embodiment of the present invention, described cubic container is arranged on three-dimensional rotation device.
In a better embodiment of the present invention, described granular porous medium is quartz sand or bead.
In a better embodiment of the present invention, described water injection hole is linked in sequence in a switch valve, a liquid flow instrument and one first displacement pump by body.
In a better embodiment of the present invention, a simulation wellbore hole connects a functional measurement point, and is linked in sequence in a switch valve and the second displacement pump by body.
In a better embodiment of the present invention, a device for pressure measurement is connected to a functional measurement point; One saturation measuring device is connected to another functional measurement point; Described device for pressure measurement is connected with computer with saturation measuring device.
In a better embodiment of the present invention, another simulation wellbore hole is connected to another functional measurement point, and is linked in sequence in another switch valve, a back-pressure valve, an oil-water metering device by body.
From the above mentioned, the present invention is used for the three-dimensional simulation device of bottom and edge water, high-pressure physics simulated experiment can be carried out to the bottom and edge water of Different Strata inclination angle, different water body type, simulate the bottom and edge water under different well type and different well pattern development scheme, can monitor and movement disciplinarian of oil and water in record cast and the pressure law of model, thus oil-water seepage mechanism in research bottom water reservoir, carry out the different development scheme effect assessment of bottom water reservoir.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the present invention and explain, not delimit the scope of the invention.Wherein:
Fig. 1: the structural representation being used for the three-dimensional simulation device of bottom and edge water for the present invention.
Fig. 2: the side structure schematic diagram being used for the three-dimensional simulation device of bottom and edge water for the present invention.
Fig. 3: the guide trough structure schematic diagram being used for the three-dimensional simulation device of bottom and edge water for the present invention.
Fig. 4: for the condition utilizing physical simulating device of the present invention to carry out bottom water reservoir extracting experiment prepares flow chart.
Fig. 5: be the flow chart utilizing physical simulating device of the present invention to carry out bottom water reservoir extracting experiment.
Fig. 6: for the condition utilizing physical simulating device of the present invention to carry out edge-wa-ter reservoir extracting experiment prepares flow chart.
Fig. 7: be the flow chart utilizing physical simulating device of the present invention to carry out edge-wa-ter reservoir extracting experiment.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now contrast accompanying drawing and the specific embodiment of the present invention is described.
As shown in Fig. 1 ~ Fig. 7, the present invention proposes a kind of three-dimensional simulation device 100 for bottom and edge water, and this analogue means 100 is made up of a cubic container, and this container has certain bearing capacity, and described cubic container is arranged on three-dimensional rotation device 25; This cubic container comprises the gland 2 that a body 1 and is arranged at bodies top, accommodating cavity 11 is provided with in body, gland 2 bottom is provided with the piston 6 identical with accommodating cavity 11 opening shape, and described gland 2 is provided with multiple air vent 7, and described air vent 7 runs through piston 6 and accommodating cavity 11 conducting; One sidewall of described body 1 is the movable side wall 3 that can dismantle, and the internal face around described body 1 surrounding sidewall is at least provided with an annular groove 9, and described annular groove 9 be arranged in parallel with the bottom surface of body 1, and in described annular groove 9, removably sealing is embedded dividing plate 10; The sidewall of body 1 or gland 2 are provided with multiple poroid functional measurement point 4, and described functional measurement point 4 controls conducting with accommodating cavity 11; Be full of granular porous medium 24 in described accommodating cavity 11, described granular porous medium 24 is quartz sand or bead; Described piston 6 to be stretched in accommodating cavity by accommodating cavity 11 opening part and is installed with on granular porous medium 24; Multiple tubing string 21 for simulation wellbore hole is provided with in granular porous medium 24 in described accommodating cavity 11; Described accommodating cavity inner bottom surface and sidewall are provided with guiding gutter 12, and described guiding gutter 12 is many ring-shaped grooves; The bottom surface of cubic container and sidewall are provided with the water injection hole 8 with guiding gutter 12 conducting.
As shown in Figure 1, in the present embodiment, the guiding gutter 12 on described body sidewall is arranged on above or below described annular groove 9, that is: guiding gutter 12 does not produce with annular groove 9 and intersects, and to avoid interference.
In the present embodiment, as shown in Figure 3, described accommodating cavity 11 inner bottom surface is provided with a steel plate 26, and the guiding gutter 12 on described body bottom surface is the upper surfaces being arranged on steel plate 26, and described steel plate 26 is provided with the open-work 261 with guiding gutter 12 and water injection hole 8 conducting.
From the above mentioned, the present invention is used for the three-dimensional simulation device of bottom and edge water, physical simulation experiment can be carried out to the bottom and edge water of Different Strata inclination angle, different water body type, simulate the bottom and edge water under different well type and different well pattern development scheme, can monitor and movement disciplinarian of oil and water in record cast and the pressure law of model, thus oil-water seepage mechanism in research bottom water reservoir, carry out the different development scheme effect assessment of bottom water reservoir.
Embodiment 1
When this physical simulating device is used for carrying out bottom water reservoir extracting experiment.
As shown in Figure 4, in the present embodiment, the bottom surface water injection hole 8 of described body is linked in sequence in switch valve 17, liquid flow instrument 18 and an one first displacement pump 16 by body.
One tubing string 21 (for simulated injection well) connects the functional measurement point 4 on gland, and is linked in sequence in a switch valve 17, intermediate receptacle 19 and the second displacement pump 23 by body.
One device for pressure measurement 13 is connected to the functional measurement point 4 on sidewall; One saturation measuring device 14 is connected to another functional measurement point 4 on sidewall; Described device for pressure measurement 13 is connected with computer 15 with saturation measuring device 14.
Described air vent 7 is connected with a blowdown piping by a switch valve 17.
As shown in Figure 5, another tubing string 21 (for simulated production well) is connected to another functional measurement point 4 on gland, and is linked in sequence in another switch valve 17, back-pressure valve 20, oil-water metering device 22 by body.
The concrete use procedure that the present invention is used for the physical simulating device of bottom water reservoir is as follows:
1) back-up sand:
Physical simulating device 100 is arranged on three-dimensional rotation device 25, described three-dimensional rotation device 25 is existing structure, rotate this physical simulating device 100, the movable side wall 3 of physical simulating device 100 is placed upward, movable sidewall 3 is taken off, swivel bolt 5, makes piston 6 move outside device 100 with gland 2 is stressed; Connect cubic container bottom water injection hole 8 by pipeline, the pipeline other end is connected with a switch valve 17, for simulating end water supply; Air vent 7 place on gland 2 is also provided with switch valve 17, for pressure in control device; By pipeline linkage function survey mark 4 and device for pressure measurement 13, for monitoring the Pressure Variation of physical simulating device 100 inside; Insert in physical simulating device 100 by the probe of saturation measuring device 14 by another functional measurement point 4, saturation measuring device 14 is for monitoring physical simulating device 100 fluid movement rule; Insert in corresponding functional measurement point 4 by tube wall boring perforated tubing string 21, simulated production well or Injection Well, and on tubing string, load onto switch valve 17, for switch well; In the accommodating cavity 11 of physical simulating device 100, fill up a certain amount of granular porous medium 24, experimentally require this medium of compacting filling; Cover movable sidewall 3; Swivel bolt 5 makes piston 6 and gland 2 is stressed moves towards accommodating cavity 11 direction, further compressing granular porous media 24.
2) the Preparatory work of experiment stage:
Open the switch valve 17 at air vent 7 place, keep accommodating cavity 11 and air to connect; Utilize pipeline to be connected with liquid flow instrument 18 port of export by water injection hole 8 place switch valve 17, its arrival end is connected with first displacement pump 16 port of export, and the first displacement pump 16 arrival end connects experimental water.Open water injection hole 8 place switch valve 17, open the first displacement pump 16, setting displacement pressure, makes the first displacement pump 16 keep constant pressure to be injected into by experimental water in accommodating cavity 11, until end water thickness reaches requirement of experiment, close the switch valve 17 at the first displacement pump 16 and water injection hole 8 place in order.
Keep the switch valve 17 at air vent 7 place to be in open mode, connect tubing string 21 (for simulated injection well) place's switch valve 17 and intermediate receptacle 19 port of export by pipeline, intermediate receptacle 19 arrival end is connected with the second displacement pump 23; Open the switch valve 17 at this tubing string 21 place, in physical simulating device 100, saturation simulation oil is injected with certain injection rate by the second displacement pump 23, until oil is all seen by air vent 7 place, close air vent 7 place switch valve 17, continue to inject a certain amount of simulated oil, until pressure reaches requirement of experiment in accommodating cavity 11, and record the average pressure in now accommodating cavity 11, close this Injection Well place switch valve 17, and disconnect the connection of this Injection Well 21 and intermediate receptacle 19.
Open the first displacement pump 16 be connected with water injection hole 8, the displacement pressure setting the first displacement pump 16 equals the average pressure in accommodating cavity 11, open the switch valve 17 at water injection hole 8 place, data on recording liquid flow instrument 18, until when being zero by fluid flow, now reach pressure balance between accommodating cavity 11 and the first displacement pump 16, experiment condition is ready.
3) production simulation:
The the first displacement pump 16 be connected with water injection hole 8 is kept to be open mode; Be connected with the well pipeline of producing well by back-pressure valve 20 arrival end, back-pressure valve 20 port of export connects oil-water metering device 22; During experiment, open well pipeline place switch valve 17, setting back-pressure valve 20 inlet port pressure, then can the simulated production well development process of recovering the oil.Reading on record oil-water metering device 22, can measure oil mass and the water yield that producing well produces, the reading on recording liquid flow instrument 18, can measure the water influx of bottom water reservoir, by saturation measuring device 14 observable bottom water coning rule.
The present invention is used for the three-dimensional simulation device of bottom and edge water, physical simulation experiment can be carried out to the bottom and edge water of Different Strata inclination angle, different water body type, simulate the bottom and edge water under different well type and different well pattern development scheme, can monitor and movement disciplinarian of oil and water in record cast and the pressure law of model, thus oil-water seepage mechanism in research bottom water reservoir, carry out the different development scheme effect assessment of bottom water reservoir.
Embodiment 2
This embodiment utilizes this physical simulating device to carry out the simulation of edge-wa-ter reservoir extracting experiment.
Structure and the principle of the present embodiment and embodiment 1 are substantially identical, its difference is, as shown in Figure 2, in the present embodiment, in the annular groove 9 that described body surrounding sidewall is arranged, sealing is embedded with dividing plate 10, and accommodating cavity 11 is divided into upper and lower two seal cavities (making the variable thickness of accommodating cavity) by dividing plate 10.As shown in Figure 6, Figure 7, in the present embodiment, described switch valve 17, liquid flow instrument 18 and one first displacement pump 16 are linked in sequence on the sidewall water injection hole 8 of body by body, and this water injection hole 8 is positioned at the top of annular groove 9.
The concrete use procedure that the present invention is used for the physical simulating device of edge-wa-ter reservoir is as follows:
1) back-up sand:
Physical simulating device 100 is arranged on three-dimensional rotation device 25, described three-dimensional rotation device 25 is existing structure, rotate this physical simulating device 100, the movable sidewall 3 of physical simulating device 100 is placed upward, and movable sidewall 3 is taken off, swivel bolt 5, makes piston 6 move outside device 100 with gland 2 is stressed; Dividing plate 10 is inserted along the annular groove 9 in accommodating cavity 11 4 peripheral wall surfaces, utilizes the water injection hole 8 on pipeline connection sidewall, and be provided with switch valve 17 at this pipeline place; Air vent 7 place on gland 2 is also provided with switch valve 17, for pressure in control device; By pipeline linkage function survey mark 4 and device for pressure measurement 13, for monitoring the Pressure Variation of physical simulating device 100 inside; Insert in physical simulating device 100 by the probe of saturation measuring device 14 by another functional measurement point 4, saturation measuring device 14 is for monitoring physical simulating device 100 fluid movement rule; Inserting in corresponding functional measurement point 4 by tube wall boring perforated tubing string 21, for simulated production well, and on tubing string, loading onto switch valve 17, for switch well; In the upper seal cavity 111 of the accommodating cavity 11 between dividing plate 10 and gland 2, fill up a certain amount of granular porous medium 24, experimentally require this medium of compacting filling; Cover movable sidewall 3; Swivel bolt 5 makes piston 6 and gland 2 is stressed moves towards accommodating cavity 11 direction, further compressing granular porous media 24; Utilize three-dimensional rotation device 25, the gland 2 of physical simulating device 100 is placed upward; And utilize whirligig 25, and model is rotated to an angle, simulated formation inclination angle.
2) the Preparatory work of experiment stage:
Open the switch valve 17 at air vent 7 place, keep accommodating cavity 11 and air to connect; Utilize pipeline to be connected with liquid flow instrument 18 port of export by water injection hole on sidewall 8 place switch valve 17, its arrival end is connected with first displacement pump 16 port of export, and the first displacement pump 16 arrival end connects experimental water.Open water injection hole 8 place switch valve 17 on sidewall, open the first displacement pump 16, setting displacement pressure, the first displacement pump 16 is made to keep constant pressure to be injected into by experimental water in accommodating cavity 11, until limit water thickness reaches requirement of experiment, close the switch valve 17 at the first displacement pump 16 and water injection hole 8 place in order.
Keep the switch valve 17 at air vent 7 place to be in open mode, connect tubing string 21 place switch valve 17 and intermediate receptacle 19 port of export by pipeline, intermediate receptacle 19 arrival end is connected with the second displacement pump 23; Open the switch valve 17 at this tubing string 21 place, in physical simulating device 100, saturation simulation oil is injected with certain injection rate by the second displacement pump 23, until oil is all seen by air vent 7 place, close air vent 7 place switch valve 17, continue to inject a certain amount of simulated oil, until pressure reaches requirement of experiment in accommodating cavity 11, and the average pressure recorded in now accommodating cavity 11 closes this tubing string 21 place switch valve 17, and disconnects the connection of this tubing string 21 and intermediate receptacle 19.
Open the first displacement pump 16 be connected with water injection hole on sidewall 8, the displacement pressure setting the first displacement pump 16 equals the average pressure in accommodating cavity 11, open the switch valve 17 at water injection hole 8 place on sidewall, data on recording liquid flow instrument 18, until when being zero by fluid flow, now reach pressure balance between accommodating cavity 11 and the first displacement pump 16, experiment condition is ready.
3) production simulation:
The the first displacement pump 16 be connected with water injection hole on sidewall 8 is kept to be open mode; Be connected with the well pipeline of tubing string 21 by back-pressure valve 20 arrival end, back-pressure valve 20 port of export connects oil-water metering device 22; During experiment, open well pipeline place switch valve 17, and set back-pressure valve 20 inlet port pressure, then can simulate the development process that in edge-wa-ter reservoir, producing well 21 recovers the oil.Reading on record oil-water metering device 22, can measure oil mass and the water yield that producing well 21 produces, the reading on recording liquid flow instrument 18, can measure the water influx of edge-wa-ter reservoir, by saturation measuring device 14 observable bottom water coning rule.
Other beneficial effect of the present embodiment is identical with embodiment 1, does not repeat them here.
The foregoing is only the schematic detailed description of the invention of the present invention, and be not used to limit scope of the present invention.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should belong to the scope of protection of the invention.

Claims (6)

1. for a three-dimensional simulation device for bottom and edge water, it is characterized in that: this analogue means is made up of a cubic container; This cubic container comprises the gland that a body and is arranged at bodies top, accommodating cavity is provided with in body, gland bottom is provided with the piston identical with accommodating cavity opening shape, and described gland is provided with multiple air vent, and described air vent runs through piston and accommodating cavity conducting; One sidewall of described body is the movable side wall that can dismantle, and the internal face around described body surrounding sidewall is at least provided with an annular groove, and the bottom surface of described annular groove and body be arranged in parallel, and in described annular groove, removably sealing is embedded dividing plate; The sidewall of body or gland are provided with multiple poroid functional measurement point, and described functional measurement point and accommodating cavity control conducting; Be full of granular porous medium in described accommodating cavity, described piston to be stretched in accommodating cavity by accommodating cavity opening part and is installed with on granular porous medium; Multiple tubing string for simulation wellbore hole is provided with in granular porous medium in described accommodating cavity; Described accommodating cavity inner bottom surface and sidewall are provided with guiding gutter, and the bottom surface of cubic container and sidewall are provided with the water injection hole with guiding gutter conducting; Guiding gutter on described body sidewall is arranged on above or below described annular groove; Described accommodating cavity inner bottom surface is provided with a steel plate, and the guiding gutter on described body bottom surface is the upper surface being arranged on steel plate, and described steel plate is provided with the open-work with guiding gutter and water injection hole conducting; Described guiding gutter is many ring-shaped grooves; Described cubic container is arranged on three-dimensional rotation device.
2., as claimed in claim 1 for the three-dimensional simulation device of bottom and edge water, it is characterized in that: described granular porous medium is quartz sand or bead.
3., as claimed in claim 1 for the three-dimensional simulation device of bottom and edge water, it is characterized in that: described water injection hole is linked in sequence in a switch valve, a liquid flow instrument and one first displacement pump by body.
4., as claimed in claim 1 for the three-dimensional simulation device of bottom and edge water, it is characterized in that: a simulation wellbore hole connects a functional measurement point, and be linked in sequence in a switch valve and the second displacement pump by body.
5., as claimed in claim 1 for the three-dimensional simulation device of bottom and edge water, it is characterized in that: a device for pressure measurement is connected to a functional measurement point; One saturation measuring device is connected to another functional measurement point; Described device for pressure measurement is connected with computer with saturation measuring device.
6., as claimed in claim 1 for the three-dimensional simulation device of bottom and edge water, it is characterized in that: another simulation wellbore hole is connected to another functional measurement point, and be linked in sequence in another switch valve, a back-pressure valve, an oil-water metering device by body.
CN201210187362.7A 2012-06-07 2012-06-07 For the three-dimensional simulation device of bottom and edge water CN102797458B (en)

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