CN103969166A - Sand filling type clamp for industrial X-Ray CT (computed tomography) imaging - Google Patents
Sand filling type clamp for industrial X-Ray CT (computed tomography) imaging Download PDFInfo
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- CN103969166A CN103969166A CN201410204397.6A CN201410204397A CN103969166A CN 103969166 A CN103969166 A CN 103969166A CN 201410204397 A CN201410204397 A CN 201410204397A CN 103969166 A CN103969166 A CN 103969166A
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Abstract
The invention discloses a sand filling type clamp for an industrial X-Ray CT (computed tomography) imaging system, and belongs to the technical field of scientific petroleum researches. The sand filling type clamp is used for doing simulation researches on seepage and relevant characteristics of multi-phase and multi-component fluid in a multihole medium; designed pressure is 0-15MPa, and designed temperature is 0-50 DEG C. The sand filling type clamp mainly comprises a base, an inner pipe, an outer pipe, an upper end socket, an end cover, a metal filtering net, a pressing pad and a rubber coil, wherein the inner pipe, the upper end socket and a lower end socket form a hollow high-pressure-resistant cavity filled with the multihole medium such as glass sand, quartz sand or clay; a heat preservation band winds the outer wall of the outer pipe, and the heat preservation band, the end cover and the base form a circulating temperature control cavity for enabling circulating liquid to flow through. The specific execution mode comprises a simulation rock core preparation process, a temperature control system operation process and a displacement or seepage experiment operation process. The sand filling type clamp is simple in structure, convenient to assemble and disassemble and high in sealing property, can be filled for multiple times and can be used repeatedly.
Description
Technical field
The present invention relates to a kind of sand-filling type clamp fastener for industrial X-Ray CT imaging system, belong to oil scientific research technical field.
Background technology
Due to the high speed development of computing machine and image processing system, Computed tomography (CT) more and more becomes a kind of important scientific research instrument, industry X-ray CT has that detection speed is fast, space and density resolution advantages of higher, the not impact of the material of examined object, shape and surface appearance.Industry X-ray CT is with the form of two dimension or three-dimensional tomographic image, clear, to have shown accurately, intuitively object to be detected inner structure, composition, material and damaged situation.Nowadays industrial X-ray CT has started to be widely used in the visual test experience of reservoir physical simulation, CCS, especially there is huge advantage in the research of the aspects such as pore texture description, two phase fluid flow characteristic, salt water layer characteristic, but for the design of sand-filling type clamp fastener for industrial X-ray CT under high-temperature and high-pressure conditions, also rarely has relevant report both at home and abroad.Its main cause is that the device materials being determined by experiment high-temperature and high-pressure conditions cannot meet requirement and the industrial X-ray CT own characteristic particular/special requirement to clamper itself of industrial X-ray CT to penetrance.
Summary of the invention
In order to solve the above-mentioned applicable industry X-ray CT problem that reservoir physical simulation runs into of being correlated with, the invention provides a kind of sand-filling type clamp fastener for industrial X-ray CT imaging device under high-temperature and high-pressure conditions.Object is that three-D space structure, factor of porosity, each phase saturation and the relative permeability for measuring multi-phase multi-component stream in porous medium provides reliable, accurate, an easy to operate physical simulating device.
Technical scheme of the present invention is:
A kind of industrial X-Ray CT imaging sand-filling type clamp fastener, comprises base, inner tube, outer tube, upper cover, end cap, metal screen, pressure pad and rubber coil.Inner tube and upper cover, low head form the high pressure resistant cavity of hollow, wherein the porous medium such as filling glass sand, silica sand or clay; Outer tube outer wall is wound around insulation belt, and outer tube and end cap, base form loop temperature-control cavity, circulate for circulation fluid; Upper cover is through end cap, and its top is provided with gas/liquid import; End cap is provided with circulation fluid import, circulation fluid outlet and thermopair interface, on base, there is low head, base side is provided with gas/liquid outlet, there are two positioning boss of size in the bottom of base, with the respective outer side edges of industrial X-ray CT objective table, for clamper being fixed on to industrial X-ray CT objective table; End cap, upper cover, low head all have rubber coil, and upper cover, low head are equipped with metal screen.Clamper is for carrying out multi-phase multi-component fluid in the seepage flow of porous medium and the modeling effort of correlation properties, and design pressure is 0～15Mpa, and design temperature is 0～50 DEG C.
Inner tube of the present invention is polyamide-imides material, and outer tube is carbon fiber material, and end cap, upper cover and base are stainless steel, and pressure pad uses teflon material.
Connected mode between inner tube of the present invention, outer tube and base, end cap is for being threaded; Pressure pad has all been added in inner tube, outer tube and base junction, upper cover and end cap junction, has ensured the seal request under condition of high voltage; Upper cover and low head are furnished with metal screen, prevent that sand from entering system; End cap, upper cover, low head are furnished with rubber coil, and its function is ensure sealing and prevent CO
2corrosion.
The present invention uses circulation fluid control experimental temperature, and thermopair interface is connected thermopair to realize temperature acquisition with external data harvester; Gas/liquid import, gas/liquid outlet are connected with injection pump, counterbalance valve respectively in order to control experiment flow velocity and experimental pressure by pipeline.
Sand-filling type clamp fastener is placed on industrial X-ray CT objective table, clamper pipeline is carried out to relevant connection, injection experiments fluid also sets experimental temperature and pressure, carries out tomoscan obtain experimental image by CT device.
The invention has the beneficial effects as follows: this sand-filling type clamp fastener is simple in structure, easy accessibility, good airproof performance, can repeatedly fill, reuse.Inner tube is made up of polyamide-imides material, wear-resisting, resistance to elevated temperatures good, and outer tube is made up of carbon fiber material, and intensity is high, penetrability good.Inner tube, outer tube can freely be dismantled, and inside and outside so two-tube structure had both ensured to test required high-temperature and high-pressure conditions, had kept again the good penetration performance of industrial X-ray CT.Temperature control method adopts circulation fluid temperature control, the outer insulation belt that is wound around of pipe, adopts temperature sensor measurement circulation fluid temperature, can reach good temperature-controlled precision, and its temperature-controlled precision is ± 0.5 DEG C.Between the each parts of clamper, connect compactness, end cap and base adopt stainless steel, and base is furnished with positioning boss, and Stability Analysis of Structures has realized original position shooting.
Brief description of the drawings
Fig. 1 is a kind of structural drawing of industrial X-Ray CT imaging sand-filling type clamp fastener.
Fig. 2 is the plan structure figure of Fig. 1.
Fig. 3 is the structural drawing of upper cover.
In figure: 1 gas/liquid import; 2 circulation fluid imports; 3 thermopair interfaces; 4 circulation fluid outlets; 5 end caps; 6 outer tubes; 7 upper covers; 8 metal screens; 9 inner tubes; 10 bases; 11 gas/liquid outlets; 12 positioning boss; 13 pressure pads; 14 low heads; 15 rubber coils.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with technical scheme and accompanying drawing.
(1) simulation core preparation process: inner tube 9 and base 10 are carried out to fitting tight, need to insert to inner tube the porous medium such as glass sand, silica sand or clay of enough appropriate particle size according to experiment, install end cap 5 and upper cover 7, whole device is fixed on to fully vibration on oscillator, taking off end cap 5, upper cover 7 carries out after secondary is filled using upper cover by sand compacting, again install end cap 5, outer tube 6 and upper cover 7, by positioning boss 12, sand-filling type clamp fastener is fixed on industrial X-Ray CT objective table, in inner tube, porous medium is as simulation core.
(2) temperature control system operating process: circulation fluid thermostat is connected with circulation fluid import 2, circulation fluid outlet 4 by pipeline, outer tube 6 outer walls are wound around insulation belt, circulation fluid thermostat is set under experimental temperature, thermopair is connected and carries out temperature acquisition with external data harvester by thermopair interface 3, waits to temperature signal and reaches requirement.
(3) displacement or Seepage Experiment operating process: back-up sand clamper inner tube 9, outer tube 6 pressure are by pressure transmitter measurement, and the pressure reduction between gas/liquid import 1 and gas/liquid outlet 11 is measured by differential pressure pick-up.By pipeline by gas/liquid import 1 be connected with fluid injection pump, gas/liquid outlet 11 is connected with counterbalance valve, regulate back pressure to experimental pressure, set experiment flow velocity, open experiment pipe valve and to injection experiments fluid in clamper, utilize industrial X-ray CT device to experimentation carry out synchronously, visual control.
Claims (10)
1. an industrial X-Ray CT imaging sand-filling type clamp fastener, is characterized in that, this sand-filling type clamp fastener comprises base, inner tube, outer tube, upper cover, end cap, metal screen, pressure pad and rubber coil; Inner tube and upper cover, low head form the high pressure resistant cavity of hollow, wherein filling porous medium; The outer wall of outer tube is wound around insulation belt, and outer tube and end cap, base form temperature control circulation cavity, circulate for circulation fluid; Upper cover is through end cap, and its top is provided with gas/liquid import; End cap is provided with circulation fluid import, circulation fluid outlet and thermopair interface, on base, there is low head, base side is provided with gas/liquid outlet, end cap, upper cover, low head all have rubber coil, upper cover, low head are equipped with metal screen, there are two positioning boss of size in the bottom of base, with the respective outer side edges of industrial X-rayCT objective table, for clamper being fixed on to industrial X-ray CT objective table.
2. the industrial X-Ray CT of one according to claim 1 imaging sand-filling type clamp fastener, it is characterized in that, described inner tube is polyamide-imides material, and outer tube is carbon fiber material, end cap, upper cover and base are stainless steel, and pressure pad uses teflon material.
3. the industrial X-Ray CT of one according to claim 1 and 2 imaging sand-filling type clamp fastener, is characterized in that, the connected mode between described inner tube, outer tube and base, end cap is for being threaded.
4. the industrial X-Ray CT of one according to claim 1 and 2 imaging sand-filling type clamp fastener, is characterized in that, pressure pad is added in described outer tube, inner tube and base junction.
5. the industrial X-Ray CT of one according to claim 3 imaging sand-filling type clamp fastener, is characterized in that, pressure pad is added in described outer tube, inner tube and base junction.
6. according to the one industry X-Ray CT imaging sand-filling type clamp fastener described in claim 1 or 2 or 5, it is characterized in that, this sand-filling type clamp fastener adopts circulation fluid temperature control, and thermopair interface is connected thermopair to realize temperature acquisition with external data harvester.
7. the industrial X-Ray CT of one according to claim 3 imaging sand-filling type clamp fastener, is characterized in that, this sand-filling type clamp fastener adopts circulation fluid temperature control, and thermopair interface is connected thermopair to realize temperature acquisition with external data harvester.
8. the industrial X-Ray CT of one according to claim 4 imaging sand-filling type clamp fastener, is characterized in that, this sand-filling type clamp fastener adopts circulation fluid temperature control, and thermopair interface is connected thermopair to realize temperature acquisition with external data harvester.
9. according to the one industry X-Ray CT imaging sand-filling type clamp fastener described in claim 1 or 2 or 5 or 7 or 8, it is characterized in that, this sand-filling type clamp fastener is connected respectively by gas/liquid import, gas/liquid outlet the control that realizes experiment flow velocity, experimental pressure with injection pump, counterbalance valve by pipeline.
10. the industrial X-Ray CT of one according to claim 6 imaging sand-filling type clamp fastener, it is characterized in that, this sand-filling type clamp fastener is connected respectively by gas/liquid import, gas/liquid outlet the control that realizes experiment flow velocity, experimental pressure with injection pump, counterbalance valve by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204397.6A CN103969166A (en) | 2014-05-15 | 2014-05-15 | Sand filling type clamp for industrial X-Ray CT (computed tomography) imaging |
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| CN201410204397.6A CN103969166A (en) | 2014-05-15 | 2014-05-15 | Sand filling type clamp for industrial X-Ray CT (computed tomography) imaging |
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| CN103969166A true CN103969166A (en) | 2014-08-06 |
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| CN201410204397.6A Pending CN103969166A (en) | 2014-05-15 | 2014-05-15 | Sand filling type clamp for industrial X-Ray CT (computed tomography) imaging |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956508A (en) * | 2016-10-17 | 2018-04-24 | 中国石油化工股份有限公司 | The disposable loose sand filling pipe and application method of variable-length |
| CN108106929A (en) * | 2017-11-17 | 2018-06-01 | 中国石油天然气股份有限公司 | For the core holding unit and its experimental method of micron CT observations |
| CN108593372A (en) * | 2018-01-12 | 2018-09-28 | 中国石油天然气股份有限公司 | A kind of rock core pressurize model equipment |
| CN116223331A (en) * | 2022-12-12 | 2023-06-06 | 南通市飞宇石油科技开发有限公司 | Core holder for testing shale oil |
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| CN102062742A (en) * | 2010-12-15 | 2011-05-18 | 大连理工大学 | Sand-filling type clamp fastener for nuclear magnetic resonance imaging |
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| JP2001059824A (en) * | 1999-08-24 | 2001-03-06 | Shimadzu Corp | Non-destructive x-ray inspection apparatus |
| CN102062742A (en) * | 2010-12-15 | 2011-05-18 | 大连理工大学 | Sand-filling type clamp fastener for nuclear magnetic resonance imaging |
| CN103616321A (en) * | 2013-11-11 | 2014-03-05 | 大连理工大学 | X-ray CT (Computed Tomography) measurement system for gas-water relative permeability |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956508A (en) * | 2016-10-17 | 2018-04-24 | 中国石油化工股份有限公司 | The disposable loose sand filling pipe and application method of variable-length |
| CN108106929A (en) * | 2017-11-17 | 2018-06-01 | 中国石油天然气股份有限公司 | For the core holding unit and its experimental method of micron CT observations |
| US10184904B1 (en) | 2017-11-17 | 2019-01-22 | Petrochina Company Limited | Core holder for micron CT observation and experimental method thereof |
| CN108106929B (en) * | 2017-11-17 | 2020-09-04 | 中国石油天然气股份有限公司 | Rock core holder for micron CT observation and experimental method thereof |
| CN108593372A (en) * | 2018-01-12 | 2018-09-28 | 中国石油天然气股份有限公司 | A kind of rock core pressurize model equipment |
| CN116223331A (en) * | 2022-12-12 | 2023-06-06 | 南通市飞宇石油科技开发有限公司 | Core holder for testing shale oil |
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Application publication date: 20140806 |
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