CN206459931U - Determine the physical simulating device of salt hole air reserved storeroom residue space utilization rate - Google Patents
Determine the physical simulating device of salt hole air reserved storeroom residue space utilization rate Download PDFInfo
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- CN206459931U CN206459931U CN201621407344.5U CN201621407344U CN206459931U CN 206459931 U CN206459931 U CN 206459931U CN 201621407344 U CN201621407344 U CN 201621407344U CN 206459931 U CN206459931 U CN 206459931U
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Abstract
The utility model provides a kind of physical simulating device for determining salt hole air reserved storeroom residue space utilization rate, and it includes：Air intake lever, cylinder and three-legged support with a scale；Cylinder top is provided with the top cover and top cap for being used for sealing the cylinder, is connected between the top cap and top cover by jump ring；And top cover is provided with compacting air inlet；Piston is slidably disposed in cylinder, and sealing ring is housed on piston；The top of air intake lever with a scale is through top cover and provided with gas drive air inlet, and the external screw thread that its bottom is set is connected with the screwed hole of piston centre, and bottom and the piston thread bottom hole face flush of air intake lever with a scale；Cylinder bottom is provided with bottom cap and collet, is connected between bottom cap and collet by jump ring, and collet is provided with water outlet gas outlet；Cylinder is placed on the three-legged support, and the three-legged support is provided with for making the through hole that water outlet gas outlet is passed through；The device also includes a dismountable moisture trap, and the moisture trap is connected by pipeline with the water outlet gas outlet.
Description
Technical field
The utility model is related to a kind of physical simulating device for determining salt hole air reserved storeroom residue space utilization rate, belongs to salt cave
Make cavity space gap and utilize technical field in underground natural gas storage tank.
Background technology
Salt cave underground storage is, using underground thicker salt deposit or salt dome, to be passed through using manual type in salt deposit or salt dome
Water-soluble formation cave storage area stores oil, natural gas, for peak regulation and strategic reserves.Salt hole air reserved storeroom has structure hard
Reality, easily good airproof performance, exploitation, especially with gas injection and the characteristics of rapid gas production, are increasingly paid attention to by various countries.
Salt cave is water-soluble make chamber during, DDGS is soluble in water and is discharged with bittern, and insoluble matter is gradually deposited at cavity bottom
Portion, the accumulation of insoluble matter and its internal remaining bittern can cause the loss in storage capacity space.For the high rock stratum of salt content, insoluble matter
Content is low, and insoluble matter accumulation body is smaller after molten chamber, and storage capacity loss is few, but the rock stratum of China is mainly many interlayer rock salt stratum, is contained
Salt deposit is thin in salt stratum, interlayer is more, insolubles content is high, and thicker insoluble matter residue can be had by terminating back cavity bottom in molten chamber.And
External salt cave bank insolubles content is less, and research, which focuses mostly on, is building storehouse addressing, salt chamber morphology Control, gas injection row's halogen technology, close
The technical elements such as envelope property evaluation, estimation of stability, and domestic current research also focuses mostly in terms of water-solvent method, to insoluble
The space research on utilization of thing residue is less.
Therefore, at present in the urgent need to improving residue void space utilization rate for China's actual conditions research and development salt hole air reserved storeroom
Physical simulation techniques.To different regions, Different Strata, the insoluble matter of difference composition carries out experimental simulation, analyzes and researches insoluble
The deposition characteristicses and its voidage of thing residue, grasp insoluble matter residue space availability, instruct follow-up gas injection row halogen construction
Process planning, useful supplement is provided for improving for China's salt hole air reserved storeroom construction technique with development.
Utility model content
The purpose of this utility model is to provide a kind of physical analogy dress for determining salt hole air reserved storeroom residue space utilization rate
Put.
For up to above-mentioned purpose, the utility model provides a kind of physics mould for determining salt hole air reserved storeroom residue space utilization rate
Intend device, it includes：Air intake lever 1, cylinder 5 and three-legged support 12 with a scale；
Wherein, the top of cylinder 5, which is provided with, is used to sealing the top cover 3 and top cap 4 of the cylinder 5, the top cap 4 and top cover 3 it
Between be connected by jump ring；And top cover 3 is provided with compacting air inlet 2；
The piston 6 is slidably disposed in cylinder 5, and sealing ring 7 is housed on piston 6；
The external screw thread that the top of the air intake lever 1 with a scale is set through top cover 3 and provided with gas drive air inlet, its bottom
It is connected with the screwed hole at the center of piston 6, and bottom and the screwed hole bottom surface flush of piston 6 of the air intake lever 1 with a scale；
The bottom of cylinder 5 is provided with bottom cap 9 and collet 10, is connected between the bottom cap 9 and collet 10 by jump ring, and bottom
Support 10 is provided with water outlet gas outlet 11；
The cylinder 5 is placed on the three-legged support 12, and the three-legged support 12 is provided with for passing through water outlet gas outlet 11
Through hole；
The device also includes a dismountable moisture trap, and the moisture trap passes through pipeline and the water outlet gas outlet
11 are connected.
According to specific embodiment of the present utility model, in the apparatus, it is preferable that the cylinder 5 is steel cylinders.
According to specific embodiment of the present utility model, it is preferable that the device, which also includes one, to be used to collect from water outlet outlet
The graduated cylinder of 11 outflow waters of mouth.Wherein, flexible pipe is connected in water outlet gas outlet 11, and the flexible pipe is put into the amount for containing a certain amount of water
In cylinder, you can to realize the purpose for collecting water.
According to specific embodiment of the present utility model, in the apparatus, dismountable moisture trap refers to this
Moisture trap can as needed be dismantled, installed.
Device described in the utility model goes for a variety of different methods and carries out salt hole air reserved storeroom residue space profit
It is that further device of the present utility model is illustrated with the measure of rate, the utility model additionally provides new using this practicality
The method that the device of type is measured to salt hole air reserved storeroom residue space utilization rate, it comprises the following steps：
(1), filtering is placed in cylinder, the insoluble residue sample to be measured after immersion, sealed cylinder is reloaded into；Open pressure
Real air inlet is simultaneously passed through gas, then slow opening gas drive air inlet, is turned off at once after the gas drive air inlet there are flowing out,
Record the initial position scale of air intake lever with a scale in top cap upper end surface；
(2) bottom water outlet gas outlet, is opened, continues to be passed through gas into cylinder by being compacted air inlet, gradually increases gas
Body pressure, and record the position scale and accumulative water yield of air intake lever with a scale under different pressures in top cap upper end surface；When
The air intake lever with a scale no longer declines in 1h, stops pressurization, now insoluble residue sample to be measured is compacted, the gas pressure
Power is compaction pressure, then obtains being compacted height of specimen by the conversion of air intake lever depth value added, and then obtains compacted volume；
(3) moisture trap, is connected, keeps compaction pressure described in step (2) constant, gas drive air inlet is opened and is passed through
Gas is to carry out gas drive, and whether observation bottom gas outlet there are flowing out, gradually increase gas drive pressure, record under each gas drive pressure
Accumulative water yield, and record occur first bubble when pressure value and time point, the pressure is breakthrough pressure；
(4), after there is first bubble, breakthrough pressure is constant described in holding step (3), observes and records each small
When water yield and gas output, record not water outlet be continuous air-out time point, flowed out since gas drive to continuous air-out
Water is gas drive water, as available voidage in residue sample.
According to specific embodiment of the present utility model, wherein, the utility model is to filter layer in this method step (1)
Thickness does not do specific requirement, and those skilled in the art can need rationally to set the thickness of filter layer according to field operation, as long as
Guarantee can realize the utility model purpose；In the utility model embodiment, when cylinder is highly 40cm, institute
It is 1cm or so with the thickness of filter layer.
According to specific embodiment of the present utility model, specifically, compacting air inlet is passed through in this method step (1)
The pressure of the gas is 0.01-0.1MPa.
Because the sealing of piston and barrel is preferable, piston will not decline in the absence of external forces, to ensure that experiment is opened
Piston can be contacted with sample during the beginning, can between a point pressure, general 0.01-0.1MPa as long as somewhat adding.
According to specific embodiment of the present utility model, specifically, in this method step (1) after cylinder loads immersion
Insoluble residue sample to be measured after, then into cylinder load sandstone filter layer.
According to specific embodiment of the present utility model, specifically, the filter layer described in this method step (1) is infiltration
Rate is filter layer more than 100 millidarcies；
More specifically, the filter layer is sandstone filter layer.
According to specific embodiment of the present utility model, specifically, in the method, the gas is incombustible gas；
More specifically, the gas includes nitrogen or air.
According to specific embodiment of the present utility model, specifically, gas is gradually increased described in this method step (2)
Pressure comprises the following steps：
Since gas pressure is 0.1-1.0MPa, increased 0.1-1.0MPa per 1-3 hours, and compaction pressure is no more than
10MPa。
According to specific embodiment of the present utility model, specifically, gas drive air inlet is passed through in this method step (3)
The pressure of the gas is 0.01-0.5MPa.
Wherein, gas drive initial pressure can be selected according to the granular size of laboratory sample in step (3), in general particle
Particle diameter is smaller, and initial pressure is bigger, and grain diameter is bigger, and initial pressure is smaller.General initial pressure be 0.01-0.5MPa it
Between.
According to specific embodiment of the present utility model, specifically, the increase width of gas drive pressure in this method step (3)
Degree is not more than 0.5MPa, and the breakthrough pressure is not more than the compaction pressure.
According to specific embodiment of the present utility model, specifically, collected in this method step (2)-(3) using graduated cylinder
Water, concrete operations are as follows：Flexible pipe is connected in water outlet gas outlet, and the flexible pipe is put into graduated cylinder to collect water；
More specifically, graduated cylinder of the graduated cylinder for a certain amount of water of splendid attire.
Wherein, in step (3) after water outlet gas outlet connects moisture trap, the graduated cylinder is used to collect from moisture trap
The water of separation.
It is mainly to observe when to break through using the purpose for the graduated cylinder for containing a certain amount of water and bubble occurs, Bu Guolian
It is that the transparent bubble that can also observe directly flows out to connect flexible pipe.
According to specific embodiment of the present utility model, in this method known to the height of air intake lever with a scale used.
The residue deposition process that the utility model is made involved by chamber process by laboratory experiment simulation salt hole air reserved storeroom is gentle
Drive drainage procedure, the effect for being compacted change and gas injection row's halogen dilatation of analysis and research insoluble matter residue sample at various pressures
Really, so draw salt chamber insoluble matter take loss space, prediction gas injection row halogen dilatation volume.For salt hole air reserved storeroom capacity-enlargement technology
Improve and underlying parameter is provided, instruct salt cave Jian Ku to make chamber Construction Scheme.
The physical simulation techniques of salt hole air reserved storeroom measure residue space utilization rate provided by the utility model have following
Advantage：
(1) physical simulating method of salt hole air reserved storeroom raising residue space utilization rate provided by the utility model being capable of mould
Intend the residue compacted volume change at various pressures of different regions, different composition, variable grain, gas drive drainage procedure, can be with
Residue displacement pressure and discharge water volume are measured, and then calculates availability (the gas drive water/compacts for obtaining residue space
Product).
(2) the physical simulating device structure of salt hole air reserved storeroom measurement residue space utilization rate provided by the utility model is set
Meter is reasonable, simple to operate, safety and stability.Whole device is simply compact, is skillfully constructed.Can be by admission pressure application cylinder body
Pressure and gas drive pressure, air intake lever depth can change into residue volume.
(3) physical simulating method of salt hole air reserved storeroom measurement residue space utilization rate provided by the utility model is simple,
It is easily mastered.
Brief description of the drawings
Fig. 1 is the knot of the physical simulating device of raising salt hole air reserved storeroom residue space provided by the utility model utilization rate
Structure schematic diagram.
Main Reference label declaration：
1st, air intake lever with a scale；
2nd, it is compacted air inlet；
3rd, top cover；
4th, top cap；
5th, cylinder；
6th, piston；
7th, sealing ring；
9th, bottom cap；
10th, collet；
11st, water outlet gas outlet；
12nd, three-legged support.
Embodiment
Implementation process of the present utility model and having for producing are described in detail below by way of specific embodiment and Figure of description
Beneficial effect, it is intended to help reader to more fully understand essence of the present utility model and feature, not as can practical range to this case
Restriction.
Embodiment 1
A kind of physical simulating device for determining salt hole air reserved storeroom residue space utilization rate is present embodiments provided, its structure is shown
It is intended to as shown in figure 1, from figure 1 it appears that the device includes：Air intake lever 1, cylinder 5 and three-legged support 12 with a scale；
Wherein, the top of cylinder 5, which is provided with, is used to sealing the top cover 3 and top cap 4 of the cylinder 5, the top cap 4 and top cover 3 it
Between be connected by jump ring；And top cover 3 is provided with compacting air inlet 2；
The piston 6 is slidably disposed in cylinder 5, and sealing ring 7 is housed on piston 6；
The external screw thread that the top of the air intake lever 1 with a scale is set through top cover 3 and provided with gas drive air inlet, its bottom
It is connected with the screwed hole at the center of piston 6, and bottom and the screwed hole bottom surface flush of piston 6 of the air intake lever 1 with a scale；
The bottom of cylinder 5 is provided with bottom cap 9 and collet 10, is connected between the bottom cap 9 and collet 10 by jump ring, and bottom
Support 10 is provided with water outlet gas outlet 11；
The cylinder 5 is placed on the three-legged support 12, and the three-legged support 12 is provided with for passing through water outlet gas outlet 11
Through hole；
The device also includes a dismountable moisture trap (not shown), and the moisture trap passes through pipeline and institute
Water outlet gas outlet 11 is stated to be connected；
The cylinder 5 is steel cylinders.
The device, which also includes one, to be used to collect the graduated cylinder from 11 outflow waters in water outlet gas outlet.Wherein, in water outlet gas outlet
11 connection flexible pipes, and the flexible pipe is put into the graduated cylinder for containing a certain amount of water, you can to realize the purpose for collecting water.
Embodiment 2
A kind of physical simulating method for determining salt hole air reserved storeroom residue void space utilization rate is present embodiments provided, it is
What the device provided using embodiment 1 was realized, this method comprises the following steps：
First, embodiment 1 provide device basic parameter it is as follows
1st, cylinder internal diameter d=9.0cm, cylinder is highly 40cm；
2nd, open ended sample volume V=S × H1；
Wherein, S is cylinder cross-sectional area, π d2/ 4=3.14 × 9 × 9/4=63.585cm2；
H1For height of specimen, wherein, initial sample high computational formula is：Cylinder height-filtering layer height-(air intake lever
Initial position scale of the total height-air intake lever in top cap upper end surface)；
Being compacted height of specimen calculation formula is：Initial sample height-air intake lever depth value added, be：Initial sample is high
Degree-(air intake lever top cap upper end surface initial position scale-air intake lever top cap upper end surface final position scale)；
3rd, air intake lever spatial volume is 23mL, and air intake lever is highly 50.9cm.
2nd, Preparatory work of experiment
1st, two pieces of Sandstone Cores filter layers (thickness is 1cm), four circular filter papers, core diameter, filter paper diameter are prepared
It is identical with cylinder internal diameter, it is 9cm.
2nd, one block of filtering rock core is first put into sample cylinder bottom, two filter paper is covered above, then revolve collet and cavity
Tightly, bottom water outlet gas outlet is closed.
3rd, wet sample volume, the quality of testing sample are measured, sample volume can not can receiving volume V more than sample cylinder maximum.
4th, sample is transferred in sample cylinder the water in sample is blotted only with suction pipe as far as possible after, barrel is cleaned.
5th, two filter paper and filtering rock core are sequentially placed on sample top, then top cover is tightened.
3rd, compact test
1st, bottom water outlet gas outlet, gas drive air inlet and compacting inlet close, compacting air inlet connection gas cylinder are kept.Will
Pressure is adjusted to 0.1MPa, is compacted air inlet open, slow to open gas drive air inlet, after gas drive air inlet there are flowing out at once
Close.Record initial position scale of the air intake lever in top cap upper end surface.
2nd, bottom water outlet gas outlet is opened, in the presence of gas pressure, the water in sample can be extruded outflow, use graduated cylinder
Accept.Since 0.5MPa, increase air intake lever height and accumulative water yield under 0.5MPa, record different pressures per hour.When every
The water yield of hour stops pressurization, final position quarter of the record air intake lever in top cap upper end surface when being less than 3mL or not water outlet
Degree, pressure now is compaction pressure, and the volume converted by air intake lever depth value added is compacted volume.
4th, gas drive water is tested
1st, moisture trap is connected, keeps compaction pressure constant, regulation gas drive admission pressure is 0.1MPa, gas drive is opened and enters
Gas port is passed through gas to carry out gas drive, and whether observation bottom water outlet gas outlet there are flowing out, and gradually increase gas drive pressure, start to increase
Dosage does not exceed 0.5MPa, after optionally can suitably adjust pressure gain, record the accumulative water yield under each pressure, and
Bubble outflow is seen whether, if so, recording out time point and the pressure of bubble, the pressure is breakthrough pressure.
2nd, after having bubble, keep gas drive pressure it is constant, observe and record water outlet and the gas output of each hour, with when
Between elapse, water yield gradually decreases, and record not water outlet is the time point of continuous air-out, is flowed out since gas drive to continuous air-out
Water is gas drive water.
3rd, the no more than compaction pressure of gas drive pressure.
5th, experiment terminates
1st, gas drive air inlet and compacting air inlet are closed, gas drive pressure and compaction pressure are closed.
2nd, experimental data is arranged.Compacted volume (height of specimen × cylinder cross-sectional area after compacting) is calculated, gas drive process is driven
Water yield is that residue space can utilize amount of space.Gas drive water divided by compacted volume are residue void space utilization rate.
Specifically：
Flat-top Mountain area core sample is chosen in the present embodiment, sample volume is 940mL, and insoluble matter weight/mass percentage composition is
91%, sample comminution, which is crossed after 40 mesh sieve (square hole 0.45mm), broken sample, to soak, and observes at least 15 days, treats that Volume Changes are little
Afterwards, it can be put into instrument and be tested.
Initial position scale of the air intake lever in top cap upper end surface is 38.7cm, then initial sample high computational formula is
40cm-2cm- (50.9cm-38.7cm), it is highly 25.8cm that calculating, which obtains initial sample, and initial volume is 1640mL, compacting pressure
Power steps up 0.5MPa, record air intake lever position scale and water yield, final air intake lever is in top cap per hour from 0.5MPa
The final position scale of end is 28.7cm, then it is 25.8cm- (38.7cm-28.7cm) to be compacted height of specimen calculation formula,
It is 15.8cm that calculating, which obtains compacting height of specimen, and compaction pressure is 8MPa, compacted volume (compacting height of specimen × cylinder cross section
Product) it is 1005mL.
Keep compaction pressure constant, by displacement pressure from 0.1MPa, be gradually increased to 0.2MPa, 0.3MPa, subsequently may be used
Suitably to increase pressure, but 0.5MPa is not exceeded, finally measure breakthrough pressure for 7MPa, it is 75.5mL to add up water yield, is obtained
It is 7.5% to residue void space utilization rate.
Claims (3)
1. a kind of physical simulating device for determining salt hole air reserved storeroom residue space utilization rate, it includes：Air intake lever with a scale
(1), cylinder (5) and three-legged support (12)；
Wherein, cylinder (5) top is provided with the top cover (3) and top cap (4) for being used for sealing the cylinder (5), the top cap (4) and top
It is connected between lid (3) by jump ring；And top cover (3) is provided with compacting air inlet (2)；
Piston (6) is slidably disposed in cylinder (5), and sealing ring (7) is housed on piston (6)；
The external screw thread that the top of the air intake lever (1) with a scale is set through top cover (3) and provided with gas drive air inlet, its bottom
It is connected with the screwed hole at piston (6) center, and bottom and piston (6) the screwed hole bottom surface phase of the air intake lever with a scale (1)
Concordantly；
Cylinder (5) bottom is provided with bottom cap (9) and collet (10), is connected between the bottom cap (9) and collet (10) by jump ring
Connect, and collet (10) is provided with water outlet gas outlet (11)；
The cylinder (5) is placed on the three-legged support (12), and the three-legged support (12) is provided with for making water outlet gas outlet (11)
The through hole passed through；
The device also includes a dismountable moisture trap, and the moisture trap passes through pipeline and the water outlet gas outlet (11)
It is connected.
2. device according to claim 1, it is characterised in that the cylinder (5) is steel cylinders.
3. device according to claim 1, it is characterised in that the device, which also includes one, to be used to collect from water outlet gas outlet
(11) graduated cylinder of institute's outflow water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621407344.5U CN206459931U (en) | 2016-12-20 | 2016-12-20 | Determine the physical simulating device of salt hole air reserved storeroom residue space utilization rate |
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| CN201621407344.5U CN206459931U (en) | 2016-12-20 | 2016-12-20 | Determine the physical simulating device of salt hole air reserved storeroom residue space utilization rate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840995A (en) * | 2016-12-20 | 2017-06-13 | 中国石油天然气股份有限公司 | Determine the physical simulating device and method of salt hole air reserved storeroom residue space utilization rate |
| CN108590589A (en) * | 2017-12-19 | 2018-09-28 | 中国石油天然气集团公司 | Library gas injection liquid row's halogen physical simulating device and analogy method are built in salt cave |
-
2016
- 2016-12-20 CN CN201621407344.5U patent/CN206459931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106840995A (en) * | 2016-12-20 | 2017-06-13 | 中国石油天然气股份有限公司 | Determine the physical simulating device and method of salt hole air reserved storeroom residue space utilization rate |
| CN106840995B (en) * | 2016-12-20 | 2023-05-26 | 中国石油天然气股份有限公司 | Physical simulation device and method for measuring salt cavern gas storage residue void utilization rate |
| CN108590589A (en) * | 2017-12-19 | 2018-09-28 | 中国石油天然气集团公司 | Library gas injection liquid row's halogen physical simulating device and analogy method are built in salt cave |
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