CN103352695B - Visualization physical simulation device with consideration of interlamination fluid channeling - Google Patents
Visualization physical simulation device with consideration of interlamination fluid channeling Download PDFInfo
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- CN103352695B CN103352695B CN201310288740.5A CN201310288740A CN103352695B CN 103352695 B CN103352695 B CN 103352695B CN 201310288740 A CN201310288740 A CN 201310288740A CN 103352695 B CN103352695 B CN 103352695B
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Abstract
The invention provides a visualization physical simulation device with consideration of interlamination fluid channeling. An entry end of a model system of the simulation device is connected with an injection system, and an exit end of the model system is connected with a collection device; the model system is formed by two or more transparent sealing containers which are arranged in a juxtaposed mode; an input pipe is arranged at one end of each sealing container, and an output pipe is arranged at the other end of each sealing container; the input pipes of the sealing containers are in parallel connection with one another; at least two connecting holes are formed in positions, opposite to the side wall of a container adjacent to the container, of the container at intervals, and the connecting holes in the sealing containers are respectively connected with the connecting holes in opposite side walls of the adjacent sealing containers through connecting pipes; porous media are filled in the sealing containers. The simulation device can simulate heterogeneous reservoirs of different development modes, oil and water displacement and movemnet rules especially for interlamination fluid exchange phenomenon can be clearly observed, thus the oil-water percolation mechanism in the heterogeneous reservoirs is researched, and meanwhile evaluation on effects of the different development mode of the heterogeneous reservoirs is carried out.
Description
Technical field
The invention relates to a kind of visual reservoir physical simulation experimental facilities, particularly relating to a kind of visual virtual design device for simulating oil gas water three phase seepage flow in crossflow situation.
Background technology
Along with global economy fast development, the mankind are also increasing to the demand of oil.At present, because exploration engineering enters bottleneck, the discovery of new block is more and more difficult, studies more and more important so carry out Study on residual oil distribution and improve recovery efficiency technique.Common research method has numerical reservoir simulation method and reservoir physical simulation method, due to the complexity of subsurface deposit, method for numerical simulation is difficult to simulate formation fluid neuron network situation truly, and physical simulating method can approximate simulation oil reservoir actual conditions under certain condition, thus Study of The Underground fluid neuron network rule better, for Tapping Residual Oil strategy and improve recovery efficiency technique and provide guidance.
Physical analogy is one of important means of carrying out scientific experimentation research according to the principle of similitude.Reservoir physical simulation technology can reflect subsurface fluid movement rule and extensive use in the oil industry more really, and what the one dimension physical simulation experiment carried out both at home and abroad at present used is artificial core or sand-filling tube model mostly.And according to well logging and rock core information analysis, many oil reservoirs have strong non-homogeneity on vertical, even show as stratified reservoir; Channelling can be there is between the layers when fluid flows in actual formation, thus the accuracy of laboratory physical simulation experiment result can be affected.The artificial core used both at home and abroad at present or sand-filling tube model can not consider the impact of this crossflow, more can not observe the distribution of fluid between different permeability reservoir and the flow direction, thus experimental result can not react the percolation law of fluid in actual formation truly, even can formulate rational production measure to Oil Field and form misleading.Therefore, study a kind of physical simulating device considering crossflow effect, particularly can realize visual experimental facilities to seepage flow situation and there is very important theoretical significance and actual application value.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of visual virtual design device considering crossflow, to overcome the defect of prior art.
Summary of the invention
The object of the present invention is to provide a kind of visual virtual design device considering crossflow, in order to simulate the heterogeneous reservoir under different development scheme, by the clear observation profit migration rule of this device energy, particularly inter-layer fluid exchanges phenomenon, thus oil-water seepage mechanism in research heterogeneous reservoir, to carry out the different development scheme effect assessment of heterogeneous reservoir.
The object of the present invention is achieved like this, a kind of visual virtual design device considering crossflow, described visual virtual design device includes model system, and the entrance point of this model system connects injected system, and the port of export of model system connects gathering-device; Described model system is made up of in the airtight container be set up in parallel up and down two or more; Described airtight container one end is provided with input pipe, and the other end is provided with efferent duct; The described entrance point of input pipe formation parallel with one another of described each airtight container; Sidewall relative with adjacent container on described airtight container is at least interval with two connecting holes, each connecting hole on described airtight container is connected with the connecting hole in the opposing sidewalls of adjacent airtight container respectively by tube connector; Described airtight container and between tube connector be made up of transparent material; Porous media is filled with in described airtight container.
In a better embodiment of the present invention, described in the airtight container that is set up in parallel for going to upper and lower arranged side by side or left and right being set up in parallel.
In a better embodiment of the present invention, described airtight container is made up of the seal cover at a cylinder and two ends thereof; Described cylinder is horizontally set; One end seal cover is provided with input pipe, and other end seal cover is provided with efferent duct; Filter screen is provided with between described each seal cover medial surface and cylinder end.
In a better embodiment of the present invention, described injected system includes the multiple intermediate receptacles be arranged in parallel, and the import of described multiple intermediate receptacle is respectively equipped with valve and is all connected to a displacement pump; The outlet of described multiple intermediate receptacle is connected with the entrance point of model system by a six-way valve; Described six-way valve also connects a supply air line, this supply air line is sequentially with gas cylinder, reducing valve, pressure meter and mass-flow gas meter; The efferent duct of described each airtight container connects a graduated cylinder respectively by respective valves; Image capturing system is provided with on described model system side.
In a better embodiment of the present invention, described image capturing system is made up of camera and connected computer.
In a better embodiment of the present invention, described model system is made up of the airtight container that three are set up in parallel.
In a better embodiment of the present invention, described porous media is quartz sand or reservoir sand.
In a better embodiment of the present invention, described transparent material is tempered glass.
From the above mentioned, the present invention considers the visual virtual design device of crossflow, the heterogeneous reservoir under different development scheme can be simulated, by the clear observation profit migration rule of this device energy, particularly inter-layer fluid exchanges phenomenon, thus oil-water seepage mechanism in research heterogeneous reservoir, carry out the different development scheme effect assessment of heterogeneous reservoir simultaneously.
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 considering the visual virtual design device of crossflow for the present invention.
Fig. 2: be the structural representation of model system in the present invention.
Fig. 3: be the structural representation of airtight container in the present invention.
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 Figure 1, Figure 2 and Figure 3, the present invention proposes a kind of visual virtual design device 100 considering crossflow, described visual virtual design device 100 includes model system 1, and the entrance point of this model system 1 connects injected system 2, and the port of export of model system 1 connects gathering-device 3; As shown in Figure 2, described model system 1 by two or more in up and down or the airtight container 11 be set up in parallel in left and right form, in the present embodiment, three airtight containers 11 are set; Described airtight container 11 one end is provided with input pipe 114, and the other end is provided with efferent duct 115; The described entrance point of input pipe 114 formation parallel with one another of described each airtight container 11; Sidewall relative with adjacent container on described airtight container 11 is at least interval with two connecting hole 113(as shown in Figure 3), each connecting hole 113 on described airtight container is connected with the connecting hole in the opposing sidewalls of adjacent airtight container respectively by tube connector 116 that (described tube connector 116 is connected with connecting hole 113 with connected mode that can be for convenience detach; Described connecting hole 113 also can according to circumstances by shutoff); Described airtight container 11 and between tube connector 116 be made up of transparent material, be made up of tempered glass in the present embodiment; Be filled with porous media in described airtight container 11, described porous media is quartz sand or reservoir sand; The porous media of filling in each airtight container 11 described can be the medium (simulation Homogeneous Reservoir) of identical order number, also can be the medium (simulation heterogeneous reservoir) of different meshes; Image capturing system 4 is provided with on described model system 1 side, can under the different displacement mode of real time record, the transport conditions of fluid in porous media.
From the above mentioned, the present invention considers the visual virtual design device of crossflow, the heterogeneous reservoir under different development scheme can be simulated, by the clear observation profit migration rule of this device energy, particularly inter-layer fluid exchanges phenomenon, thus oil-water seepage mechanism in research heterogeneous reservoir, carry out the different development scheme effect assessment of heterogeneous reservoir simultaneously.
Further, as shown in Figure 1, in the present embodiment, described injected system 2 includes the multiple intermediate receptacles 21,22,23 and 24 be arranged in parallel, in intermediate receptacle 21, formation water is housed, in intermediate receptacle 22, formation oil is housed, in intermediate receptacle 23, foam solution is housed, intermediate receptacle 24 is intermediate receptacle for subsequent use; Import and the outlet of described multiple intermediate receptacle are respectively equipped with respective valves, and the import of described multiple intermediate receptacle is connected to a displacement pump 25; The outlet of described multiple intermediate receptacle is connected with the entrance point of model system 1 (can arrange foam maker 28 between six-way valve 26 and the entrance point of model system 1 as required) by a six-way valve 26; Described six-way valve 26 also connects a supply air line 27, this supply air line 27 is sequentially with gas cylinder 271, reducing valve 272, pressure meter 273 and mass-flow gas meter 274; The efferent duct 115 of described each airtight container 11 connects a graduated cylinder 31 respectively by respective valves; Described image capturing system 4 is made up of camera 41 and connected computer 42.
As shown in Figure 3, in the present embodiment, described airtight container 11 is made up of the seal cover 112 at a cylinder 111 and two ends thereof; Described cylinder 111 is in horizontally set; One end seal cover 112 is provided with input pipe 114, and other end seal cover 112 is provided with efferent duct 115; Be provided with filter screen (not shown) between described each seal cover 112 medial surface and cylinder 111 end, go out model system to prevent porous media flow.
The present invention considers that the concrete use procedure of the visual virtual design device of crossflow is as follows:
(1) back-up sand:
First at seal cover internal fixtion filter screen of airtight container one end, the order number of selected filter screen, higher than the order number of the granular porous medium of experiment, is built seal cover and tightens; With sealed screw, the connecting hole of airtight container side is blocked (now, connecting hole does not also connect described tube connector) again; Airtight container is erect, in airtight container, fills up the granular porous medium of a certain amount of, certain order number, experimentally require this medium of compacting; Inside another seal cover, fix same filter screen, cover seal cover and tighten;
By two other identical airtight container filling porous media in the same way; The porous media of filling in these two airtight containers can be the medium (simulation Homogeneous Reservoir) of identical order number with what fill in first airtight container, also can be the medium (simulation heterogeneous reservoir) of different meshes; Experimentally require and determine;
(2) saturation water process:
As shown in Figure 1, utilize entrance point and the six-way valve 26 of pipeline link model system 1, open intermediate receptacle 21 port of export valve, intermediate receptacle 21 arrival end is connected with displacement pump 25; Open the shift knob on displacement pump 25, in airtight container 11, inject saturation water with certain speed, until model is completely saturated, close respective valves.Use the same method and two other airtight container carried out saturation water.
(3) saturated oils process:
Utilize entrance point and the six-way valve 26 of pipeline link model system 1, open intermediate receptacle 22 port of export valve, intermediate receptacle 22 arrival end is connected with displacement pump 10; Open the shift knob on displacement pump 25, in airtight container 11, inject simulated oil with certain speed, until saturated volume required, close entrance controlled valve.Use the same method and two other airtight container carried out saturated oils.
(4) flood pot test:
Connected successively (as shown in Figure 2) by connecting hole on three airtight container sidewalls with tube connector 116, utilize entrance point and the six-way valve 26 of pipeline link model system 1, open intermediate receptacle 21 port of export valve, intermediate receptacle 21 arrival end is connected with displacement pump 25; Open the shift knob on displacement pump 25, in each airtight container 11, inject formation water with certain speed, carry out flood pot test.Measure port of export Liquid output, oil production with graduated cylinder 31, calculate aquifer yield and moisture content, until mold exit end is fuel-displaced hardly, moisture content reaches more than 90%, closes respective valves and stops water drive.
(5) foam flooding experiment:
Be communicated with the controlled valve on the intermediate receptacle 23 that the rear foam solution of dyeing is housed, open the valve of supply air line 27, by mass-flow gas meter 274 and displacement pump 25, with identical speed to injecting gas and foam solution in model system 1, whole displacement process is recorded with image capturing system 4, observe the migration rule of foam in porous media, and in crossflow situation oil-water seepage rule in foam flooding process.
The present invention considers the visual virtual design device of crossflow, the heterogeneous reservoir under different development scheme can be simulated, by the clear observation profit migration rule of this device energy, particularly inter-layer fluid exchanges phenomenon, thus oil-water seepage mechanism in research heterogeneous reservoir, carry out the different development scheme effect assessment of heterogeneous reservoir simultaneously.
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 (2)
1. consider a visual virtual design device for crossflow, described visual virtual design device includes model system, and the entrance point of this model system connects injected system, and the port of export of model system connects gathering-device; It is characterized in that: described model system is made up of in the airtight container be set up in parallel two or more; Described airtight container one end is provided with input pipe, and the other end is provided with efferent duct; The described entrance point of input pipe formation parallel with one another of described each airtight container; Sidewall relative with adjacent container on described airtight container is at least interval with two connecting holes, each connecting hole on described airtight container is connected with the connecting hole in the opposing sidewalls of adjacent airtight container respectively by tube connector; Described airtight container and between tube connector be made up of transparent material; Porous media is filled with in described airtight container;
The described airtight container be set up in parallel is for going to upper and lower arranged side by side or left and right being set up in parallel;
Described airtight container is made up of the seal cover at a cylinder and two ends thereof; Described cylinder is horizontally set; One end seal cover is provided with input pipe, and other end seal cover is provided with efferent duct; Filter screen is provided with between described each seal cover medial surface and cylinder end;
Described injected system includes the multiple intermediate receptacles be arranged in parallel, and the import of described multiple intermediate receptacle is respectively equipped with valve and is all connected to a displacement pump; The outlet of described multiple intermediate receptacle is connected with the entrance point of model system by a six-way valve; Described six-way valve also connects a supply air line, this supply air line is sequentially with gas cylinder, reducing valve, pressure meter and mass-flow gas meter; The efferent duct of described each airtight container connects a graduated cylinder respectively by respective valves; Image capturing system is provided with on described model system side;
Described image capturing system is made up of camera and connected computer;
Described porous media is quartz sand or reservoir sand; Described transparent material is tempered glass.
2. the visual virtual design device considering crossflow as claimed in claim 1, is characterized in that: described model system is made up of the airtight container that three are set up in parallel.
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Cited By (1)
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| CN108169451A (en) * | 2017-11-21 | 2018-06-15 | 中煤科工集团西安研究院有限公司 | Detect the experimental rig and method of filling in mine slurries characteristics of motion in pipeline |
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| CN105089653B (en) * | 2014-05-23 | 2018-04-10 | 中国石油化工股份有限公司 | Measure the experimental provision and method of commingling production gas well crossflow amount |
| CN104005742B (en) * | 2014-05-29 | 2016-06-15 | 东北石油大学 | A kind of method for testing lab simulation Heterogeneous reservoir difference water filling and device |
| CN104763395A (en) * | 2015-04-15 | 2015-07-08 | 中国海洋石油总公司 | Automatic simulation chemical flooding slug switching system |
| CN105548180B (en) * | 2015-12-07 | 2017-08-01 | 中国石油大学(北京) | A kind of online test method of displacement of reservoir oil foaming properties |
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| NL78903C (en) * | 1947-12-01 | 1900-01-01 | ||
| US6055874A (en) * | 1999-02-02 | 2000-05-02 | Halliburton Energy Services, Inc. | Apparatus and method for simulating well bore conditions |
| CN101446189B (en) * | 2008-12-28 | 2011-08-10 | 大连理工大学 | Supercritical carbon dioxide drive physical analogue device |
| CN102094642B (en) * | 2010-12-17 | 2013-10-16 | 中国石油天然气股份有限公司 | Intraformationally heterogeneous model oil-water displacement efficiency evaluation system |
| CN102169081B (en) * | 2010-12-17 | 2012-10-17 | 中国石油天然气股份有限公司 | Heterogeneous multi-layer core holding unit |
| CN202718673U (en) * | 2012-06-07 | 2013-02-06 | 中国石油大学(北京) | Visual physical simulation device for bottom-water reservoirs |
| CN203430506U (en) * | 2013-07-10 | 2014-02-12 | 中国石油大学(北京) | Visual physical simulation device considering fluid channeling between layers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108169451A (en) * | 2017-11-21 | 2018-06-15 | 中煤科工集团西安研究院有限公司 | Detect the experimental rig and method of filling in mine slurries characteristics of motion in pipeline |
| CN108169451B (en) * | 2017-11-21 | 2020-09-01 | 中煤科工集团西安研究院有限公司 | Test device and method for detecting motion law of mine filling slurry in pipeline |
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