CN204960927U - A heterogeneous body sandpack column that is used for research of heterogeneous body oil reservoir seepage flow characteristic - Google Patents
A heterogeneous body sandpack column that is used for research of heterogeneous body oil reservoir seepage flow characteristic Download PDFInfo
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- CN204960927U CN204960927U CN201520715166.1U CN201520715166U CN204960927U CN 204960927 U CN204960927 U CN 204960927U CN 201520715166 U CN201520715166 U CN 201520715166U CN 204960927 U CN204960927 U CN 204960927U
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Abstract
The utility model discloses a heterogeneous body sandpack column that is used for research of heterogeneous body oil reservoir seepage flow characteristic, it includes the cuboid casing, a side material of cuboid casing is clear glass, the parallel direction of lateral wall along two arbitrary relative settings with the casing in the cuboid casing is provided with two foraminiferous baffles so that separate equidistant three space in the casing, block respectively in the recess of reserving in the casing wall so that two foraminiferous baffles can or be pulled out along the recess propulsion at the both ends of two foraminiferous baffles, the baffle is used for filling out the quartz sand of different mesh numbers in the equidistant three space that goes out, both ends are fixed with the blind flange respectively about the casing, a wellhole and three wellhole have been opened respectively on the blind flange of cuboid casing both ends, install a plurality of pressure sensor on the cuboid casing. This device can be used to realize three -layer heterogeneous body physical model.
Description
Technical field
The utility model relates to technical field of petroleum extraction, and the utility model particularly relates to the back-up sand physical simulation experiment model for simulating reservoir heterogeneity.
Background technology
Physical simulation experiment is one of seepage flow characteristics, the means improving recovery ratio effect assessment in research oil reservoir recovery process.The nonhomogeneous soil layers that heterogeneous reservoir physical analogy is used, has three types in petroleum industry at present.I.e. multitube parallel model, plane consolidated model and planar sand packs.Respectively, multitube parallel model: due to the existence of tube wall, truly can not reflect the actual conditions of contact naturally between different permeability reservoir to the deficiency of three kinds of model existence.Plane consolidated model: because model area is large, the limited pressure born, and consolidated model cost is higher.Planar sand packs: because model area is large, the limitation of compacting after back-up sand, presses and unreally easily occurs channelling phenomenon in experimentation.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art, a kind of migration state that can observe oil-water in different permeability reservoir-drive agent is provided, the seepage flow characteristics of research heterogeneous reservoir fluid, can also carry out the heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics that heterogeneous reservoir improves the multiple physical simulation experiment research of recovery ratio effect.
A kind of heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics of the present utility model, it comprises cuboid housing, a side material of described cuboid housing is clear glass, for observing the variation characteristic of different permeability reservoir displacing front in displacement test process, two pieces of apertured partition are provided with to make to be separated out equally spaced three spaces in housing along the direction parallel with any two sidewalls be oppositely arranged of housing in described cuboid housing, the two ends of two pieces of described apertured partition snap onto in groove reserved in housing wall respectively to make two pieces of apertured partition can advance or pull-out along groove, for filling out the quartz sand of different meshes in equally spaced three spaces that dividing plate is separated out, open pore size on dividing plate is less than the minimum grain size of the quartz sand of contact, blind flange is fixed with respectively at the two ends, left and right of described housing, the length being shorter in length than housing of described apertured partition, the front end that blind flange stretches into housing parts can touch the quartz sand loaded in housing, described cuboid housing two ends blind flange has one and injects wellhole and three extraction wellholes, described one is injected wellhole and is connected with injection pipeline, three space one_to_one corresponding that three described extraction wellholes are separated out with dividing plate are respectively communicated with, described cuboid housing has the pressure tap of multiple equidistant layout, at described pressure tap place, pressure sensor is installed, to monitor the situation of change of collection model internal pressure in real time.
Advantage of the present utility model: can be used for realizing three layers of nonhomogeneous soil layers, can simulate different permeability reservoir displacement characteristics, evaluate the physical simulation experiment of transfer drive system effect.The transfer drive efficiency under different rhythm reservoir conditions can be simulated, by this model can also in clear observation transfer drive experimentation different permeability layer of sand in the variation characteristic of displacing front.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics of the present utility model;
Fig. 2 is the orthogonal view of the model shown in Fig. 1;
Fig. 3 is the sectional side view of the model shown in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
A kind of heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics of the present utility model as shown in drawings, it comprises cuboid housing, a side material of described cuboid housing is clear glass, the variation characteristic of different permeability reservoir displacing front in observable displacement test process.
In described cuboid housing, two pieces of apertured partition 1,2 are installed to make to be separated out equally spaced three spaces in housing along with any two sidewalls be oppositely arranged 18 of housing, 19 parallel directions, the length of apertured partition 1,2 is less than the length of housing so that blind flange 6,7 stretches into housing parts, and the two ends of described two pieces of apertured partition 1,2 snap onto in groove reserved in housing wall respectively to make two pieces of apertured partition 1,2 can advance or pull-out along groove.Both the effect of being fixedly linked had been played, again convenient cleaning and replacing.For filling out the quartz sand of different meshes in equally spaced three spaces 3,4,5 that dividing plate is separated out, the size of the perforate on dividing plate can be arranged according to the maximum order number of quartz sand, the minimum grain size that open pore size on dividing plate is less than the quartz sand of contact guarantees quartz sand not by dividing plate, and displacement fluid can only be allowed to pass through.
The utility model makes the combination realizing different permeability reservoir during model back-up sand due to the existence of the apertured partition 1,2 in cuboid, and the hole of certain order number due to dividing plate designing, the contact interface can simulated between different permeability reservoir is communicated with, and can realize the simulation of heterogeneous reservoir.When three parts separated in model all fill a kind of order number quartz sand, can be used as uniform soft soil base and use.
Blind flange 6,7 is fixed with respectively at the two ends, left and right of described housing.For ease of sealing, described blind flange 6,7 stretches into housing and the position be connected with housing is circle, is provided with the sealing of oil-resistant high-temperature sealing ring between the position that both connect.Blind flange 6,7 stretches into cuboid housing parts on the basis of conventional design about length 5cm, and lengthen the surplus of 2-3cm, namely blind flange 6,7 stretches into housing parts length is 7cm-8cm.When covering the blind flange period of the day from 11 p.m. to 1 a.m, the front end that blind flange stretches into housing parts can touch the quartz sand loaded in housing, blind flange is tightened by bolt 18,19,20,21, while tightening blind flange, because the surplus lengthened can play supplementary compaction to the quartz sand filled out in model, model consolidation effect is good, can play the effect preventing channelling.Because model two ends blind flange is detachable, housing can be made and be stuck in two inner dividing plates after the test, convenient disassembly and easily cleaning up.
Described housing two ends blind flange has one and injects wellhole 8 and three extraction wellholes 9,10,11, described one is injected wellhole 8 and is connected with the intermediate space that dividing plate is separated out.Three space one_to_one corresponding that described three extraction wellholes 9,10,11 are separated out with dividing plate are respectively communicated with.
Do when testing, having the connection of the apertura lateralis place on a blind flange injecting wellhole stainless steel pipeline as displacement pipeline, inject displacing agent, 3 wellhole places of the inner side on the blind flange having 3 extraction wellholes are arranged to the horizontal well that stainless steel tube does, as extraction well.The physical simulation experiment that a note three adopts well pattern can be realized, for the extraction situation of the different permeable formation of analog study.
Described cuboid housing has the pressure tap of multiple equidistant layout, the number of pressure tap can be chosen according to the length of pipeline, about 10cm pressure tap in interval is set usually, the every 12cm of the model of 60cm length arranges 1 pressure tap as shown in Figure 1, totally 6 pressure taps 12,13,14,15,16,17.At described pressure tap place, pressure sensor is installed, in real time the situation of change of monitoring collection model internal pressure.
On the multi-functional heterogeneous body sandpack column of the utility model, the tapping on each pressure tap place of model and blind flange all adds stainless steel mesh, prevents the blocking of charges, guarantees that experiment is carried out smoothly.
The utility model, is mainly used in the physical simulation experiment of heterogeneous reservoir, can carry out physical simulation experiment to 3 kinds of infiltrative reservoirs and any combination mode thereof, and the injection that simulation different permeability reservoir is adopted in process with note point is dynamic, output situation; By the migration state of the one side clear observation profit of energy in different permeable formation of this model visualization, thus oil-water seepage characteristic in research heterogeneous reservoir, carry out the prediction of heterogeneous reservoir different development phases development effectiveness.
Utilize the experimentation of this device as follows:
When doing inhomogeneous physical simulated experiment, first experimentally scheme makes nonhomogeneous soil layers.Then the intermediate receptacle containing displacing agent in injected system is connected in the injection wellhole 8 of non-homogeneous model, the oil-water separation metering system of output is connected in three extraction wellholes 9,10,11.Then start to test according to existing flow process, experimental procedure is as follows: (1) experiment flow pressure testing, (2) the saturated formation water of model, (3) oily expelling water, make irreducible water, calculate initial oil saturation Sor and irreducible water saturation Swi in model, (4) flood pot test, the oil of output and the water yield in time recording 3 different permeability reservoirs, until not fuel-displaced, (5) in whole experimentation, pass through model visual, oil-water displacement leading edge seepage state in each permeable formation of observed and recorded, experiment terminates.The data that finally experiment process gathers, drafting figure and table, all data of comprehensive analysis design mothod draw experiment conclusion.
The foregoing is only the schematic detailed description of the invention of the utility model; and be not used to limit scope of the present utility model; any those skilled in the art; under the prerequisite not departing from design of the present utility model and principle; the equivalent variations made and amendment, all should belong to the scope of the utility model protection.
Claims (3)
1. the heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics, it is characterized in that: it comprises cuboid housing, a side material of described cuboid housing is clear glass, for observing the variation characteristic of different permeability reservoir displacing front in displacement test process, two pieces of apertured partition are provided with to make to be separated out equally spaced three spaces in housing along the direction parallel with any two sidewalls be oppositely arranged of housing in described cuboid housing, the two ends of two pieces of described apertured partition snap onto in groove reserved in housing wall respectively to make two pieces of apertured partition can advance or pull-out along groove, for filling out the quartz sand of different meshes in equally spaced three spaces that dividing plate is separated out, open pore size on dividing plate is less than the minimum grain size of the quartz sand of contact, blind flange is fixed with respectively at the two ends, left and right of described housing, the length being shorter in length than housing of described apertured partition, the front end that blind flange stretches into housing parts can touch the quartz sand loaded in housing, described cuboid housing two ends blind flange has one and injects wellhole and three extraction wellholes, described one is injected wellhole and is connected with injection pipeline, three space one_to_one corresponding that three described extraction wellholes are separated out with dividing plate are respectively communicated with, described cuboid housing has the pressure tap of multiple equidistant layout, at described pressure tap place, pressure sensor is installed, to monitor the situation of change of collection model internal pressure in real time.
2. the heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics according to claim 1, it is characterized in that: described blind flange stretches into cuboid housing and the position be connected with housing is circle, is provided with the sealing of oil-resistant high-temperature sealing ring between the position that both connect.
3. the heterogeneous body sandpack column for the research of heterogeneous reservoir seepage flow characteristics according to claim 1 and 2, is characterized in that: it is 7cm-8cm that described blind flange stretches into housing parts length.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106501493A (en) * | 2016-11-03 | 2017-03-15 | 东北石油大学 | A kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method |
CN106703765A (en) * | 2017-01-09 | 2017-05-24 | 中国科学院理化技术研究所 | Visual artificial sand filling and oil displacing device for adjusting injection and production liquid level and application thereof |
CN107676070A (en) * | 2017-10-25 | 2018-02-09 | 江苏鑫贝诺冶金机械有限公司 | A kind of sandpack column pipe |
CN109505593A (en) * | 2018-11-21 | 2019-03-22 | 河北工业职业技术学院 | A kind of three-dimensional visualization sandpack column and preparation method thereof |
CN110863825A (en) * | 2018-08-27 | 2020-03-06 | 中国石油天然气股份有限公司 | Method and device for distinguishing characteristic region |
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2015
- 2015-09-15 CN CN201520715166.1U patent/CN204960927U/en active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106501493A (en) * | 2016-11-03 | 2017-03-15 | 东北石油大学 | A kind of displacement test heterogeneous body self-constant temperature sandpack column and loading method |
CN106703765A (en) * | 2017-01-09 | 2017-05-24 | 中国科学院理化技术研究所 | Visual artificial sand filling and oil displacing device for adjusting injection and production liquid level and application thereof |
CN107676070A (en) * | 2017-10-25 | 2018-02-09 | 江苏鑫贝诺冶金机械有限公司 | A kind of sandpack column pipe |
CN110863825A (en) * | 2018-08-27 | 2020-03-06 | 中国石油天然气股份有限公司 | Method and device for distinguishing characteristic region |
CN110863825B (en) * | 2018-08-27 | 2022-08-30 | 中国石油天然气股份有限公司 | Method and device for distinguishing characteristic region |
CN109505593A (en) * | 2018-11-21 | 2019-03-22 | 河北工业职业技术学院 | A kind of three-dimensional visualization sandpack column and preparation method thereof |
CN109505593B (en) * | 2018-11-21 | 2022-06-28 | 河北工业职业技术学院 | Three-dimensional visual sand filling model and preparation method thereof |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: China National Offshore Oil Corporation |
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