CN202250011U - High-temperature and high-pressure rectangular sand-packed model for steam overlap research - Google Patents
High-temperature and high-pressure rectangular sand-packed model for steam overlap research Download PDFInfo
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- CN202250011U CN202250011U CN2011203533353U CN201120353335U CN202250011U CN 202250011 U CN202250011 U CN 202250011U CN 2011203533353 U CN2011203533353 U CN 2011203533353U CN 201120353335 U CN201120353335 U CN 201120353335U CN 202250011 U CN202250011 U CN 202250011U
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Abstract
The utility model discloses a high-temperature and high-pressure rectangular sand-packed model for a steam overlap research, which mainly solves the problems of limited functions, and high-temperature and high-pressure intolerance of conventional experimental facilities during a steam flooding experiment. The high-temperature and high-pressure rectangular sand-packed model for the steam overlap research is characterized in that a heat insulation layer (5) is coated outside a rectangular sand box (4), and two ports and two end covers (2) of the rectangular sand box are fastened by bolts (1) and then in closed connection; an injection-production interface (3) with a connecting thread is formed on each end cover (2), a pressure measuring hole (7) and a temperature measuring hole (8), which penetrate through a box body, are drilled at the outer side the heat insulation layer of the rectangular sand box (4); and a rotating shaft (6) with a bearing fixedly penetrates through the rectangular sand box (4). The high-temperature and high-pressure rectangular sand-packed model for the steam overlap research can tolerate the high temperature and high pressure, is convenient for filling, and can simulate the overlap phenomenon of the steam in a stratum flow process, be assorted with injection-production facilities in the conventional indoor steam flooding experiment, and be used for the research of a steam flooding steam channeling mechanism and the effect evaluation of a steam flooding steam channeling control method.
Description
Technical field
The utility model relates to a kind of simulating lab test device that steam flooding vapour is scurried mechanism research that is used for.
Background technology
Steam flooding is production of heavy oil reservoir, improves the effective technology of heavy crude reservoir oil recovery factor, but has many factors directly or indirectly to affect its oil displacement efficiency.For example, the steam overlap and the vapour that occur in the steam flooding process are scurried, and the reduction of a large amount of losses of the steam that will cause injecting and sweep efficiency has a strong impact on the effect of steam flooding.Therefore,, should further investigate its influence factor, especially need study the steam overlap mechanism and the method for exploring control or alleviation steam overlap of steam flooding in order to improve the oil displacement efficiency of steam flooding.The indoor physical simulation experiment is the important component part of these problems of research, and in the indoor physical simulation experiment, suitable rock core model is essential.At present; Carrying out the used rock core model of indoor physical simulation experiment in the oilfield exploitation procedure mainly contains: the natural cylindrical rock core of 1. taking from the stratum; Be characterized in having reflected truly the characteristics such as mineral composition and pore structure of subsurface rock, but obtain difficulty, cost is high; 2. microcosmic glass etching model, adopt the photochemical etching technical matters with the pore structure photoetching of natural core to flat glass.Be characterized in that displacement process is visual, reusable, but size is little, cost is high, can not heatproof and withstand voltage; 3. artificial column or dull and stereotyped rock core are widely used in indoor physical simulation at present.Be characterized in simulate formation rock porosity and permeability to a certain extent, cost is low, but adopts epoxy gluing mostly, and its heatproof and withstand voltage properties generally are not suitable for carrying out the steam flooding experiment; 4. the fill out sand tube model adopts the quartz sand of different-grain diameter and different compaction's simulation heavy crude reservoirs, shows as the one dimension fill out sand tube more; Be characterized in repeating loading, cost is low; But high temperature high voltage resistant is applicable to and carries out the experiment of one dimension steam flooding, but the length of conventional fill out sand tube model and vertical height stock size is too little; And point for measuring temperature and pressure tap limited amount, the analog study of steam flooding steam overlap phenomenon does not suit to carry out.
Summary of the invention
For the problem that exists in the prior art that solves the background technology proposition; The utility model provides a kind of rectangular sandpack column of HTHP that is used for steam overlap research; This kind model can withstand high temperatures and high pressure, and it is convenient to load, and can simulate the onlap phenomenon that steam takes place in the flow process of stratum; Can adopt coordinative composition of equipments with notes in the existing indoor steam flooding experiment and use, can be used for steam flooding vapour and scurry the research of mechanism and the effect assessment that steam flooding vapour is scurried control method.
The technical scheme of the utility model is: this kind is used for the rectangular sandpack column of HTHP of steam overlap research, comprises the rectangular flask of being processed by stainless steel, and its improvements are:
Between the outside coated insulation layer of said rectangular flask, its two ports and two end caps through realizing after the bolton that sealing is connected; The notes that have the band connecting thread on the said end cap are adopted interface, and the insulation layer of said rectangular flask has pressure tap and the thermometer hole that connects casing outward; Run through said rectangular flask and be fixed with a turning cylinder that has bearing.
In addition, channelling takes place along the sandbox surface in fluid in the experimentation in order to avoid, and the inner surface of said rectangular flask is processed coarse frosting.
In addition,, a seal gasket is set between said end cap and rectangular flask, has corresponding bolt on the said seal gasket and pass through the hole for improving the precision of experiment.
The utlity model has following beneficial effect: this kind is used for the deficiency of the rectangular sandpack column of HTHP of steam overlap research to existing research vehicle; Outer setting insulation layer at rectangular flask; And evenly distribute several thermometer holes and pressure tap, end cap adopts high temperature resistant rubber cushion sealing, assembles with bolt; Modelling has turning cylinder, can arbitrarily angledly place.The characteristics of this sandpack column are can withstand high temperatures and high pressure; Can be in the steam injection process monitoring model end face and ground pressure and temperature along the variation of injection direction; Thereby understand the operating condition of steam in jection in model; The steam overlap that takes place in the simulation steam flooding process can be adopted coordinative composition of equipments with notes in the existing indoor steam flooding experiment and use, and can be used for mechanism research of steam flooding steam overlap and steam flooding steam overlap control method effect assessment etc.
Description of drawings:
Fig. 1 is the structure sectional view of the utility model.
1-bolt among the figure, the 2-end cap, 3-annotates and adopts interface, 4-rectangular flask, 5-insulation layer, 6-turning cylinder.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1; This kind is used for the rectangular sandpack column of high temperature, high pressure of steam overlap research; Comprise a rectangular flask 4 of processing by stainless steel,, realize that through bolt 1 fastening back sealing is connected between its two ports and two end caps 2 at the outside coated insulation layer 5 of said rectangular flask 4; The notes that have the band connecting thread on the said end cap 2 are adopted interface 3, and the insulation layer of said rectangular flask 4 has the pressure tap 7 and thermometer hole 8 that connects casing outward; Run through said rectangular flask 4 and be fixed with a turning cylinder 6 that has bearing.
In addition, through processing, make the inner surface of said rectangular flask 4 become coarse frosting.
Simultaneously, between said end cap 2 and rectangular flask 4, be provided with a seal gasket, have corresponding bolt on the said seal gasket and pass through the hole.
Be the method for using that example is described this experimental facilities to annotate nitrogen to the simulating lab test that influences of steam flooding steam overlap below.
At first, carry out the preparation of rectangular sandpack column.According to the empirical relation of quartz sand size and permeability,, select to load particle diameter with quartz sand according to the oil reservoir actual conditions; An end cap of rectangular sandpack column is assembled with bolt, through turning cylinder rectangular sandpack column is vertically placed, an end of assembling end cap down; Quartz sand 9 with selected particle diameter is progressively loaded rectangular sandpack column, in the back-up sand process, the temp probe and the pressure probe of corresponding height is connected; Back-up sand assembles another end cap, with rectangular sandpack column horizontal positioned after accomplishing with bolt; Connect and inject and the extraction pipeline, connect the temperature and pressure display, rectangular sandpack column is ready.
Then, begin experiment: under the situation of not annotating nitrogen, inject the steam of design temperature, write down of the variation of the temperature and pressure of rectangular sandpack column end face and bottom surface with the steam injection according to the speed of experimental program design; Treat after the rectangular sandpack column cooling; At first in sandpack column, inject a certain amount of nitrogen according to the experimental program design; Inject the steam of uniform temp afterwards again with same injection rate, and write down of the variation of the temperature and pressure of rectangular sandpack column end face and bottom surface with the steam injection.Make a bet in the steam course through contrasting above-mentioned situation, the difference that rectangular sandpack column end face and bottom surface temperature and pressure change is understood and is annotated the influence rule of nitrogen to the steam flooding steam overlap.
Claims (3)
1. the rectangular sandpack column of HTHP that is used for steam overlap research comprises the rectangular flask of being processed by stainless steel (4), it is characterized in that:
Realize that through the fastening back of bolt (1) sealing is connected between the outside coated insulation layer (5) of said rectangular flask (4), its two ports and two end caps (2); The notes that have the band connecting thread on the said end cap (2) are adopted interface (3), and the insulation layer of said rectangular flask (4) has pressure tap (7) and the thermometer hole (8) that connects casing outward;
Run through said rectangular flask (4) and be fixed with a turning cylinder (6) that has bearing.
2. a kind of rectangular sandpack column of HTHP that is used for steam overlap research according to claim 1, it is characterized in that: the inner surface of said rectangular flask (4) is coarse frosting.
3. a kind of rectangular sandpack column of HTHP that is used for steam overlap research according to claim 1 and 2; It is characterized in that: between said end cap (2) and the rectangular flask (4) seal gasket is arranged, have corresponding bolt on the said seal gasket and pass through the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203533353U CN202250011U (en) | 2011-09-20 | 2011-09-20 | High-temperature and high-pressure rectangular sand-packed model for steam overlap research |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203533353U CN202250011U (en) | 2011-09-20 | 2011-09-20 | High-temperature and high-pressure rectangular sand-packed model for steam overlap research |
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| CN202250011U true CN202250011U (en) | 2012-05-30 |
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| CN2011203533353U Expired - Fee Related CN202250011U (en) | 2011-09-20 | 2011-09-20 | High-temperature and high-pressure rectangular sand-packed model for steam overlap research |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485769A (en) * | 2012-06-13 | 2014-01-01 | 中国科学院理化技术研究所 | Sand filling tube combination device for simulating fractured reservoir |
| CN106285594A (en) * | 2016-08-22 | 2017-01-04 | 西安交通大学 | A kind of sand-filling tube combination device and boundary temperature control method thereof |
| 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 |
| CN107525755A (en) * | 2017-08-21 | 2017-12-29 | 浙江海洋大学 | Terrace antiseepage formula soil osmotic coefficient investigating device in Large Oil Tank area fire wall |
| CN109751049A (en) * | 2019-03-08 | 2019-05-14 | 北京瑞莱博石油技术有限公司 | One kind passing through resistivity measurement oil saturation device |
| CN109781188A (en) * | 2019-03-08 | 2019-05-21 | 北京瑞莱博石油技术有限公司 | A kind of measuring device of pressure and temperature |
| CN110513091A (en) * | 2019-09-09 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment |
| CN111963118A (en) * | 2020-08-25 | 2020-11-20 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
-
2011
- 2011-09-20 CN CN2011203533353U patent/CN202250011U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103485769A (en) * | 2012-06-13 | 2014-01-01 | 中国科学院理化技术研究所 | Sand filling tube combination device for simulating fractured reservoir |
| CN103485769B (en) * | 2012-06-13 | 2016-05-25 | 中国科学院理化技术研究所 | A kind of sand-filling tube combination device of simulation fracture oil reservoir |
| CN106285594A (en) * | 2016-08-22 | 2017-01-04 | 西安交通大学 | A kind of sand-filling tube combination device and boundary temperature control method thereof |
| CN106285594B (en) * | 2016-08-22 | 2018-08-10 | 西安交通大学 | A kind of sand-filling tube combination device and its boundary temperature control method |
| 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 |
| CN107525755A (en) * | 2017-08-21 | 2017-12-29 | 浙江海洋大学 | Terrace antiseepage formula soil osmotic coefficient investigating device in Large Oil Tank area fire wall |
| CN109751049A (en) * | 2019-03-08 | 2019-05-14 | 北京瑞莱博石油技术有限公司 | One kind passing through resistivity measurement oil saturation device |
| CN109781188A (en) * | 2019-03-08 | 2019-05-21 | 北京瑞莱博石油技术有限公司 | A kind of measuring device of pressure and temperature |
| CN110513091A (en) * | 2019-09-09 | 2019-11-29 | 中国海洋石油集团有限公司 | A kind of long horizontal sections multiple spot steam injection measuring device for heavy crude heat extraction experiment |
| CN111963118A (en) * | 2020-08-25 | 2020-11-20 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
| CN111963118B (en) * | 2020-08-25 | 2022-10-11 | 中海石油（中国）有限公司天津分公司 | Two-dimensional visual sand filling experiment model for simulating horizontal well exploitation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120920 |