CN201803962U - Heterogeneous model computed tomography (CT) scan simulation device - Google Patents
Heterogeneous model computed tomography (CT) scan simulation device Download PDFInfo
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- CN201803962U CN201803962U CN201020282648XU CN201020282648U CN201803962U CN 201803962 U CN201803962 U CN 201803962U CN 201020282648X U CN201020282648X U CN 201020282648XU CN 201020282648 U CN201020282648 U CN 201020282648U CN 201803962 U CN201803962 U CN 201803962U
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Abstract
A heterogeneous model computed tomography (CT) scan simulation device is applied to physical simulation experiments for heterogeneous reservoirs, and adopts the structure that the outer wall of an aluminum alloy casing is wrapped by a carbon fiber layer; a left plug and a right plug are respectively fixed at two ends of the aluminum alloy casing through fixing pressing caps; the left plug is provided with a filling opening, a heating chamber and a confining pressure hole; the right plug is provided with an outlet pipe, a confining pressure hole and a pressure measuring point interface; one end of a confining pressure rubber tube with a hollow rectangular cross section is fixed on the left plug; and an axial stress loading end, a connecting screw and the outlet pipe are fixed at the other end of the confining pressure rubber tube. The utility model has the effects that triaxial hydrostatic confining pressure and control are realized, so that the stress field acting on a heterogeneous model is closer to the reservoir conditions; and through the CT scan imaging of the displacement of the heterogeneous model, the device can conduct real-time tracking on oil and water distribution, changes of water flooding streamline and fluid saturation distribution inside the heterogeneous model, as well as dynamic changes of the heterogeneous model during displacement.
Description
Technical field
The utility model relates to oil field prospecting development technique field, and particularly a kind of non-homogeneous model reservoir physical simulation experimental provision is a kind of clamper that is used for the CT scan non-homogeneous model.
Background technology
The most oil reservoirs of China have the characteristics of nonmarine deposit, the reservoir serious heterogeneity.According to statistics, the geologic reserve of China's fluvial facies and delta reservoir accounts for and drops into the total geologic reserve of exploitation more than 70%, reservoir heterogeneity is serious, the fluvial facies deposit sand body is usually based on positive rhythm, and from the sand body bottom to the top from the coarse to fine, permeability is by high step-down, non-homogeneous degree has much relations with sedimentation type,---distributary channel sand body---distributary channel sand body under water from the meandering river sand body, differential being followed successively by＞10,3～10,2～5 of permeability, V-factor is about 0.718.Go into that the mutually common sand body structure of leading edge is compound rhythm sand body in the delta, lake, sand body middle part granularity is thick and evenly, slightly attenuates to top, bottom, and permeability is step-down slightly also, and permeability grade is about 3, the coefficient of variation 0.639～0.427.The anti-rhythm sand body of thin layer during delta-front facies sand sheet body is more common, from sand body bottom to the top granularity by thin chap, permeability from low to high, permeability grade 2～3, V-factor is about 0.621.The nonuniformity of hydrocarbon-bearing pool has been controlled the flow event of fluid in porous medium, also is the main internal cause that influences the rate of oil and gas recovery.Core physical simulation experiment is the important means of research oil-gas migration rule, and the heterogeneous core physical simulation experiment helps to be familiar with the seepage flow mechanism of heterogeneous reservoir oil-gas migration, and the scientific and efficient exploitation of heterogeneous reservoir is had certain guidance and reference role.
At present heterogeneous reservoir seepage flow mechanism PHYSICAL MODELING OF IN is adopted fill out sand tube model in parallel or artificial cement's heterogeneous core model usually.Because there is layer cross flow in heterogeneous reservoir, normal experiment can't each pervious course position of scrutiny heterogeneous core the situation of employing, more can't Real Time Observation change and water drive streamline feature to each layer position oil-containing, experiment can only obtain the integrated information of the rock core displacement of reservoir oil, as recovery ratio, water percentage etc.Conventional heterogeneous reservoir physical model shell all adopts stainless steel bearing higher simulated pressure, and the X ray that the CT scan machine produces can't penetrate stainless steel.
The CT scan technology is a kind of technology that is used for carrying out Non-Destructive Testing and flaw detection specially, and along with the development of computer industry, the CT scan system performance improves constantly, and has obtained in the many fields of petroleum industry using widely.The CT scan system carries out the measurement and the description of petrophysical parameter under the state that rock is not destroyed, research rock core hole variation characteristic and nonuniformity.Observe the interior flow process of rock core and measure displacement process rock core inner fluid saturation degree and change in time.At present, the carbon fiber clamper has been used for the CT scan of weak point rock core post displacement simulation system, but rock core length is generally 5～8cm, can't carry out real-time follow-up scanning to multilayer non-homogeneous model displacement process under reservoir condition.From looking into new result, yet there are no a kind of physical simulation experiment device and can realize non-homogeneous model real-time CT scan of displacement process under reservoir condition.
The utility model content
The purpose of this utility model is: a kind of non-homogeneous model CT scan analogue means is provided, this device use can more approaching true heterogeneous reservoir characteristic the large scale non-homogeneous model, the non-homogeneous model type can adopt artificial cement's non-homogeneous model, the stacked non-homogeneous model of the rock core of coring, the stacked non-homogeneous model of the rock core of appearing or back-up sand non-homogeneous model.The rock core post that the size of model adopts than the conventional core experiment is much bigger, more can complete, comprehensively reflect the heterogeneous reservoir real features.By combining with the CT scan imaging technique, non-homogeneous model interior oil water distribution, water drive streamline change in the real-time follow-up displacement process, fluid saturation distributes and dynamic change, for heterogeneous reservoir seepage flow and displacement mechanism research provide visual means.
The technical solution adopted in the utility model is: non-homogeneous model CT scan analogue means, mainly comprise: aluminum alloy casing, carbon fiber layer, left plug, right plug, confined pressure packing element, non-homogeneous model chamber, axial stress load termination and O-ring seal, it is characterized in that: aluminum alloy casing is a cylindrical shape, the outer wall of aluminum alloy casing is surrounded by carbon fiber layer, make analogue means possess higher pressure-bearing level, and X ray can penetrate aluminum alloy casing, and to the clear scanning imagery of non-homogeneous model displacement process.The non-homogeneous model aluminum alloy casing is reinforced with carbon fiber layer, makes the experiment confined pressure can reach 70MPa, and pore-fluid pressure can reach 65MPa.
Left end at aluminum alloy casing has columned left plug, one end of left side plug inserts in the center pit of aluminum alloy casing, the ring-shaped step of left side plug outer wall projection contacts with the end face of aluminum alloy casing, left end screw thread at aluminum alloy casing is fixed with fixedly pressure cap, is pressed in after fixedly pressure cap screws on the left plug ring-shaped step.Left side plug has center pit, is inlet in the outer end of left plug center pit, and the inlet inwall has screw thread, can connect fill nipple.On left plug heating chamber is arranged, heating chamber is the cylindrical hole parallel with center pit, and heating chamber can insert electrically heated rod and heat, and model heating-up temperature scope is 30～200 ℃.The confined pressure hole parallel with center pit arranged on left plug, is the confined pressure interface in the outer end in confined pressure hole, and confined pressure interface inwall has screw thread, can connect the confined pressure joint.The inner in confined pressure hole and aluminum alloy casing inner chamber UNICOM.
Right-hand member at aluminum alloy casing has columned right plug, one end of right plug inserts in the center pit of aluminum alloy casing, the ring-shaped step of right plug outer wall projection contacts with the end face of aluminum alloy casing, right-hand member screw thread at aluminum alloy casing is fixed with fixedly pressure cap, is pressed in after fixedly pressure cap screws on the right plug ring-shaped step.Right plug has center pit, in right plug center pit outlet is arranged, in the outer end of right plug center pit screw thread is arranged, right plug center pit outer end is fixed with the outlet gib screw, the outlet gib screw has center pit, and outlet passes outlet gib screw center pit.At right plug the confined pressure hole parallel with center pit being arranged, is the confined pressure interface in the outer end in confined pressure hole, and confined pressure interface inwall has screw thread, can connect the confined pressure joint.The inner in confined pressure hole and aluminum alloy casing inner chamber UNICOM.On right plug pressure tap is arranged, pressure tap is the cylindrical hole parallel with center pit, and pressure tap the inner is fixed with the pressure measurement pipeline; There is the pressure tap interface pressure tap outer end, and the pressure tap interface has internal thread.The pressure tap interface can connect external pressure sensor, gathers model internal pressure dynamic change in the displacement process.
The inner end of left side plug has rectangular cylinder, and xsect is that an end of the confined pressure packing element of hollow rectangle is fixed on the left plug square column; In the confined pressure packing element heterogeneous body model cavity, open ended non-homogeneous model to be measured in the non-homogeneous model chamber, type can be: artificial cement's non-homogeneous model, the stacked non-homogeneous model of the rock core of coring, the stacked non-homogeneous model of the rock core of appearing or back-up sand non-homogeneous model.Between confined pressure packing element outer wall and the aluminum alloy casing inwall confined pressure space is arranged; The other end at the confined pressure packing element is fixed with an axial stress loading termination, and axial stress loads the termination center pit, and axial stress loads termination center pit and non-homogeneous model chamber UNICOM.The first end of axial stress loading end has internal thread, and attachment screw is fixed on the end that axial stress loads the termination by screw thread; Attachment screw has center pit, and the inner of outlet is fixed in the attachment screw center pit; Outlet loads the center pit and the non-homogeneous model chamber UNICOM of termination by axial stress.The other end of the inner pressure measurement pipeline of right plug pressure tap connects the pressure tap of confined pressure packing element.
Described confined pressure packing element adopts modification tetrafluoro rubber to make.
Non-homogeneous model chamber rectangular cross section, size dimension scope are 3～50cm, and non-homogeneous model cavity length scope is 20～150cm.
The quantity of pressure tap is 2～20, and the spacing of pressure tap is 5～50cm, by arranging the pressure tap position, can monitor non-homogeneous model different layers position pressure simultaneously.
On the outer wall of left plug and right plug, ring groove is arranged, circlip for shaft is arranged in ring groove.Circlip for shaft can prevent that fixedly pressure cap is loosening.
In order to improve sealing, between left plug and aluminum alloy casing, O-ring seal is arranged; Between right plug and aluminum alloy casing, O-ring seal is arranged.
The inner end of outlet gib screw has O-ring seal, and O-ring seal is enclosed within on the outer wall of outlet.
The annularly flow groove that mutual UNICOM is arranged on the inner face of left plug and right plug.Inject fluid and evenly inject inner each layer of heterogeneous core position through the groove that flows, each layer of production end bit stream body is pooled to the model outlet through the groove that flows.
The beneficial effect of the utility model non-homogeneous model CT scan analogue means:
(1) by the non-homogeneous model displacement process is carried out the CT scan imaging, non-homogeneous model interior oil water distribution, water drive streamline change in can the real-time follow-up displacement process, fluid saturation distributes and dynamic change, for heterogeneous reservoir seepage flow and displacement mechanism research provide visual means.
(2) can adapt to the rectangular parallelepiped non-homogeneous model that the cross section is a rectangle, the suffered stress condition of model more closely descends stress characteristics;
(3) types of models can use and core, appear that rock core is stacked, artificial cement's non-homogeneous model or back-up sand non-homogeneous model, the prosodic features that can more truly simulate the heterogeneous reservoir deposition;
(4) non-homogeneous model of this device employing, the rock core column dimension that adopts than the conventional core experiment increases, thereby rock pore volume to be measured is increased, and reduces test error;
(5) this device has been realized three hydrostatic confined pressures and control, makes the more approaching true reservoir conditions of the suffered stress field of non-homogeneous model;
(6) in this device, be provided with the pressure measurement interface around the confined pressure packing element, this device is applicable to that each stressor layer is monitored in real time in the multilayer non-homogeneous model displacement process;
(7) by heating rod temperature in the control heating chamber, non-homogeneous model displacement characteristics under the energy simulating oil deposit temperature.
Description of drawings
Fig. 1 is the utility model non-homogeneous model CT scan analogue means structural profile synoptic diagram.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is B-B sectional view and the D-D sectional view of Fig. 1.The B-B sectional view represents on left plug 3 inner faces mobile groove 19 (annular groove) is arranged; The D-D sectional view represents on 8 inner faces of axial stress loading termination mobile groove 19 is arranged.
Fig. 4 is the C-C sectional view of Fig. 1.The cross-sectional structure of expression confined pressure packing element 7 and confined pressure packing element 7 concern with the position of aluminum alloy casing 18; The position of expression pressure tap 17.
Fig. 5 is the right view of Fig. 1.
Among the figure, 1. inlet, 2. heating chamber, 3. left plug, 4. fixedly pressure cap, 5. O-ring seal, 6. carbon fiber layer, 7. confined pressure packing element, 8. axial stress loads termination, 9. right plug, 10. confined pressure interface, 11. outlet, 12. outlet gib screws, 13. pressure measurement interfaces, 14. circlip for shaft, 15. attachment screws, 16. non-homogeneous model chambeies, 17. pressure tap, 18. aluminum alloy casings, 19. mobile grooves.
Embodiment
Embodiment 1: with a non-homogeneous model CT scan analogue means that can hold 4.5cm * 4.5cm * 30cm rectangular parallelepiped non-homogeneous model is example, is elaborated.
With reference to Fig. 1.Non-homogeneous model CT scan analogue means comprises: aluminum alloy casing 18, carbon fiber layer 6, left plug 3, right plug 9, confined pressure packing element 7, non-homogeneous model chamber 16, axial stress load termination 8 and O-ring seal 5.
Left end at aluminum alloy casing 18 has columned left plug 3, one end of left side plug 3 inserts in the center pit of aluminum alloy casing 18, the ring-shaped step of left side plug 3 outer wall projectioies contacts with the end face of aluminum alloy casing 18, left end screw thread at aluminum alloy casing 18 is fixed with a fixedly pressure cap 4, is pressed on left plug 3 ring-shaped steps after fixedly pressure cap 4 screws.It is the center pit of 3mm that left side plug 3 has diameter, is inlets 1 in the outer end of left plug 3 center pits, and inlet 1 inwall has screw thread.The heating chamber 2 that on left plug 3 diameter to be arranged be 10mm, degree of depth 100mm, heating chamber 2 is cylindrical holes parallel with center pit.The confined pressure hole parallel with center pit arranged on left plug 3, is diameter 3mm confined pressure interface 10 in the outer end in confined pressure hole, and confined pressure interface 10 inwalls have screw thread.The inner in confined pressure hole and aluminum alloy casing 18 inner chamber UNICOMs.
Right-hand member at aluminum alloy casing 18 has columned right plug 9, one end of right plug 9 inserts in the center pit of aluminum alloy casing 18, the ring-shaped step of right plug 9 outer wall projectioies contacts with the end face of aluminum alloy casing 18, right-hand member screw thread at aluminum alloy casing 18 is fixed with fixedly pressure cap 4, is pressed in after fixedly pressure cap 4 screws on right plug 9 ring-shaped steps.Right plug 9 has center pit, it is the outlet 11 of 3mm that diameter is arranged in right plug 9 center pits, there is screw thread outer end at right plug 9 center pits, right plug 9 center pit outer ends are fixed with outlet gib screw 12, outlet gib screw 12 has center pit, and outlet 11 passes outlet gib screw 12 center pits.At right plug 9 diameter parallel with center pit being arranged is the confined pressure hole of 3mm, is confined pressure interface 10 in the outer end in confined pressure hole, and confined pressure interface 10 inwalls have screw thread.The inner in confined pressure hole and aluminum alloy casing 18 inner chamber UNICOMs.On right plug 9 pressure tap is arranged, pressure tap is the cylindrical hole parallel with center pit, and pressure tap the inner is fixed with the pressure measurement pipeline; There is pressure tap interface 13 the pressure tap outer end, and pressure tap interface 13 has internal thread.On the right plug 9 heating chamber 2 is arranged also.
The inner end of left side plug 3 has rectangular cylinder, and xsect is that an end of the confined pressure packing element 7 of hollow rectangle is fixed on left plug 3 square column; It in the confined pressure packing element 7 heterogeneous body model cavity 16.Consult Fig. 4.Between confined pressure packing element 7 outer walls and aluminum alloy casing 18 inwalls confined pressure space is arranged; Confined pressure packing element 7 adopts heat resist modification tetrafluoro rubber to form through high-pressure casting, and it is the rectangular parallelepiped non-homogeneous model chamber 16 of 4.5cm * 4.5cm * 30cm that there is xsect inside, can hold the non-homogeneous model to be measured of same size.Consult Fig. 1.The other end at confined pressure packing element 7 is fixed with an axial stress loading termination 8, and axial stress loads termination 8 center pit, and axial stress loads termination 8 center pits and non-homogeneous model chamber 16 UNICOMs.Axial stress loads termination 8 one ends internal thread, and attachment screw 15 is fixed on the end that axial stress loads termination 8 by screw thread; Attachment screw 15 has center pit, and the inner of outlet 11 is fixed in attachment screw 15 center pits; Outlet 11 loads the center pit and non-homogeneous model chamber 16 UNICOMs of termination 8 by axial stress.The other end of the inner pressure measurement pipeline of right plug 9 pressure taps connects the pressure tap 17 of confined pressure packing element 7.
The quantity of pressure tap 17 is 3, and the spacing of pressure tap 17 is 8cm.
A ring groove is arranged respectively on the outer wall of left plug 3 and right plug 9, circlip for shaft 14 is arranged in ring groove.An O RunddichtringO 5 is arranged between left plug 3 and aluminum alloy casing 18; An O RunddichtringO 5 is arranged between right plug 9 and aluminum alloy casing 18.The inner end of outlet gib screw 12 has O-ring seal, and O-ring seal is enclosed within on the outer wall of outlet 11.
Consult Fig. 3.The degree of depth 2mm of mutual UNICOM, the annularly flow groove 19 of width 2mm are arranged on the inner face of left plug 3.The degree of depth 2mm of mutual UNICOM, the annularly flow groove 19 of width 2mm are arranged on the inner face of right plug 9.
Utilize non-homogeneous model CT scan analogue means, the process that experimentizes is as follows: consult Fig. 1.
1. get the non-homogeneous model CT scan analogue means of embodiment 1, pressure cap 4 drives left plug 3 by turning fixedly, and it is unloaded.Two-layer artificial cement's positive rhythm heterogeneous core is put into confined pressure packing element 7, and the non-homogeneous model specification is 4.5cm * 4.5cm * 30cm, and model is divided into two-layer up and down, and the upper strata perm-plug method is 200mD, and lower floor's perm-plug method is 2000mD.Left plug 3 is installed again, and lifting axe is to loading termination 8, makes left plug 3 and right plug 9 compress non-homogeneous model in the confined pressure packing element 7;
2. confined pressure interface 10 is connected on the confined pressure pump, starts the confined pressure pump, make confined pressure reach 30MPa.Device is carried out CT scan, scanning voltage 80Kv, electric current 80mA obtains the inner CT value of dried model and distributes;
3. will install outlet 11 usefulness plugs and seal, inlet 1 connects vacuum pump.Non-homogeneous model was vacuumized 24 hours, and vacuum tightness reaches 0.1MPa to the model, feeds local water from inlet 1, and saturated local water 12 hours.Device is carried out CT scan, obtain saturation water MODEL C T value and distribute;
4. supporting electrically heated rod is put into heating chamber 2, it is 60 ℃ that the electrically heated rod temperature is set.Inject crude oil from inlet 1 and make irreducible water, reservoir temperature aging 7 days down.
5. with 2mL/min speed non-homogeneous model is carried out water displacing oil, metering extraction profit amount, model exports moisture 98% displacement of end when above, and displacement process is carried out CT scan.
Claims (8)
1. non-homogeneous model CT scan analogue means, mainly comprise: aluminum alloy casing (18), carbon fiber layer (6), left plug (3), right plug (9), confined pressure packing element (7), non-homogeneous model chamber (16), axial stress load termination (8) and O-ring seal (5), it is characterized in that: aluminum alloy casing (18) is cylindrical shape, and the outer wall of aluminum alloy casing (18) is surrounded by carbon fiber layer (6);
Left end at aluminum alloy casing (18) has columned left plug (3), one end of left side plug (3) inserts in the center pit of aluminum alloy casing (18), the ring-shaped step of left side plug (3) outer wall projection contacts with the end face of aluminum alloy casing (18), left end screw thread at aluminum alloy casing (18) is fixed with fixedly pressure cap (4), is pressed in after fixedly pressure cap (4) screws on left plug (3) ring-shaped step; Left side plug (3) has center pit, in the outer end of left plug (3) center pit is inlet (1), inlet (1) inwall has screw thread, heating chamber (2) is arranged on left plug (3), heating chamber (2) is the cylindrical hole parallel with center pit, and the confined pressure hole parallel with center pit arranged on left plug (3), is confined pressure interface (10) in the outer end in confined pressure hole, confined pressure interface (10) inwall has screw thread, the inner in confined pressure hole and aluminum alloy casing (18) inner chamber UNICOM;
Right-hand member at aluminum alloy casing (18) has columned right plug (9), one end of right plug (9) inserts in the center pit of aluminum alloy casing (18), the ring-shaped step of right plug (9) outer wall projection contacts with the end face of aluminum alloy casing (18), right-hand member screw thread at aluminum alloy casing (18) is fixed with fixedly pressure cap (4), is pressed in after fixedly pressure cap (4) screws on right plug (9) ring-shaped step; Right plug (9) has center pit, in right plug (9) center pit, outlet (11) is arranged, there is screw thread outer end at right plug (9) center pit, right plug (9) center pit outer end is fixed with outlet gib screw (12), outlet gib screw (12) has center pit, and outlet (11) passes outlet gib screw (12) center pit; At right plug (9) the confined pressure hole parallel with center pit being arranged, is confined pressure interface (10) in the outer end in confined pressure hole, and confined pressure interface (10) inwall has screw thread; There is pressure tap in the inner in confined pressure hole and aluminum alloy casing (18) inner chamber UNICOM on right plug (9), pressure tap is the cylindrical hole parallel with center pit, and pressure tap the inner is fixed with the pressure measurement pipeline; There is pressure tap interface (13) the pressure tap outer end, and pressure tap interface (13) has internal thread;
The inner end of left side plug (3) has rectangular cylinder, and xsect is that an end of the confined pressure packing element (7) of hollow rectangle is fixed on left plug (3) square column; Be heterogeneous body model cavity (16) in the confined pressure packing element (7), between confined pressure packing element (7) outer wall and aluminum alloy casing (18) inwall confined pressure space arranged; The other end at confined pressure packing element (7) is fixed with an axial stress loading termination (8), axial stress loads termination (8) center pit, axial stress loads termination (8) center pit and non-homogeneous model chamber (16) UNICOM, axial stress loads termination (8) one ends internal thread, and attachment screw (15) is fixed on the end that axial stress loads termination (8) by screw thread; Attachment screw (15) has center pit, and the inner of outlet (11) is fixed in attachment screw (15) center pit; Outlet (11) is by center pit and non-homogeneous model chamber (16) UNICOM of axial stress loading termination (8), and the other end of the inner pressure measurement pipeline of right plug (9) pressure tap connects the pressure tap (17) of confined pressure packing element (7).
2. non-homogeneous model CT scan analogue means according to claim 1 is characterized in that: described confined pressure packing element (7) adopts modification tetrafluoro rubber to make.
3. non-homogeneous model CT scan analogue means according to claim 1 is characterized in that: non-homogeneous model chamber (16) rectangular cross section, and the size dimension scope is 3～50cm, non-homogeneous model chamber (16) length range is 20～150cm.
4. non-homogeneous model CT scan analogue means according to claim 1 is characterized in that: the quantity of pressure tap (17) is 2～20, and the spacing of pressure tap (17) is 5～50cm.
5. according to claim 1,2,3 or 4 described non-homogeneous model CT scan analogue means, it is characterized in that: on the outer wall of left plug (3) and right plug (9), ring groove is arranged, circlip for shaft (14) is arranged in ring groove.
6. according to claim 1,2,3 or 4 described non-homogeneous model CT scan analogue means, it is characterized in that: between left plug (3) and aluminum alloy casing (18), O-ring seal (5) is arranged; Between right plug (9) and aluminum alloy casing (18), O-ring seal (5) is arranged.
7. according to claim 1,2,3 or 4 described non-homogeneous model CT scan analogue means, it is characterized in that: the inner end of outlet gib screw (12) has O-ring seal, and O-ring seal is enclosed within on the outer wall of outlet (11).
8. according to claim 1,2,3 or 4 described non-homogeneous model CT scan analogue means, it is characterized in that: the annularly flow groove (19) that mutual UNICOM is arranged on the inner face of left plug (3) and right plug (9).
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| CN107100616B (en) * | 2017-04-18 | 2023-10-10 | 中国石油大学(北京) | Compact heterogeneous reservoir model saturated crude oil device |
| CN107271349A (en) * | 2017-07-19 | 2017-10-20 | 中国石油大学(北京) | A kind of rock parameter assay method under supercritical carbon dioxide saturation |
| CN109358079B (en) * | 2018-11-06 | 2023-10-27 | 广州海洋地质调查局 | Device and method for measuring sea area argillaceous silt reservoir structure change by combining CT technology |
| CN109358079A (en) * | 2018-11-06 | 2019-02-19 | 广州海洋地质调查局 | The device and method changed in conjunction with CT technology measurement sea area shale flour sand reservoir structure |
| CN110631897A (en) * | 2019-09-24 | 2019-12-31 | 成都理工大学 | Multifunctional rock core holder |
| CN110823779A (en) * | 2019-11-19 | 2020-02-21 | 西南石油大学 | Rock core holder and combination formula rock core centre gripping model |
| CN112229739A (en) * | 2020-09-30 | 2021-01-15 | 太原理工大学 | High-temperature high-pressure rock triaxial experimental device matched with CT (computed tomography) online scanning |
| CN112255253A (en) * | 2020-10-30 | 2021-01-22 | 西南石油大学 | High-temperature high-pressure large-scale oil-water displacement dynamic X-ray scanning experimental device |
| CN113447504A (en) * | 2021-07-30 | 2021-09-28 | 北京拓普莱博油气田开发技术研究院 | X-ray transmission device and method for transmitting X-ray to rock model |
| CN113447504B (en) * | 2021-07-30 | 2024-04-30 | 北京拓普莱博油气田开发技术研究院 | X-ray transmission device and method for transmitting rock model through X-rays |
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