CN102808614B - Oil-gas migration physical simulating device and oil-gas migration experimental technique - Google Patents
Oil-gas migration physical simulating device and oil-gas migration experimental technique Download PDFInfo
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- CN102808614B CN102808614B CN201210299653.5A CN201210299653A CN102808614B CN 102808614 B CN102808614 B CN 102808614B CN 201210299653 A CN201210299653 A CN 201210299653A CN 102808614 B CN102808614 B CN 102808614B
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Abstract
The present invention proposes a kind of oil-gas migration physical simulating device and oil-gas migration experimental technique, and described oil-gas migration physical simulating device comprises: insulating box and the fill out sand tube be arranged in described insulating box.Shown oil-gas migration experimental technique, is arranged in insulating box by the glass fill out sand tube of normal pressure, adopts crude oil to carry out oil and gas secondary migration experiment, and carries out visible observation, carries out the research of oil gas macroscopic view migration process; The stainless steel fill out sand tube of high pressure is arranged in insulating box, adopts crude oil to carry out oil and gas secondary migration experiment, carry out oil-gas migration process microconstituent Changeement.The present invention is integrated with the simulation of oil and gas secondary migration visible physical and the not visible physical analogy of HTHP two functions, better oil and gas secondary migration macroscopic view migration process and the research of microcosmic migration mechanism are combined, improve the means of oil and gas secondary migration PHYSICAL MODELING OF IN.
Description
Technical field
The present invention relates to Hydrocarbon Formation Reservoirs technical field, particularly relate to a kind of oil-gas migration physical simulating device and oil-gas migration experimental technique, for the physical simulation experiment research of the change such as component and isotope in oil and gas secondary migration macroscopic view migration process and the research of microcosmic migration mechanism and oil and gas secondary migration process.
Background technology
Current oil and gas secondary migration research is mostly based on kerosene migration experiment, but no matter be that density or chemical group Chengdu exist huge difference between product oil (kerosene) and crude oil, this species diversity must cause the effect in crude oil secondary migration process and between formation water and porous rocks more complicated, therefore in order to hold macroscopical migrational mode and the microcosmic migration mechanism of oil and gas secondary migration more accurately, need to carry out crude oil secondary migration experimental study.But crude oil is poor mobile performance at normal temperatures, secondary migration experimental study can not be used for.
In addition, in oil and gas secondary migration process, different molecular weight, opposed polarity, and the compound of different spatial chemistry space structures, in the process by delivery layer, when suffering sorption and desorption effect, respective performance is different, cause oil gas component and isotope etc. all can change, this is called geologic chromatographic effect in geology, and the generation of this phenomenon can help the direction of petroleum geology worker oil gas migration.But at present, the oil migration experiment of loose original mold type under cannot carrying out high-temperature and high-pressure conditions, effectively cannot carry out oil-gas migration microconstituent Changeement under the Temperature-pressure Conditions of underground.
Summary of the invention
The present invention proposes a kind of oil-gas migration physical simulating device and oil-gas migration experimental technique, to solve crude oil poor mobile performance at normal temperatures, can not be used for the problem of secondary migration experimental study.The present invention can also solve cannot to the oil migration experiment of original mold type loose under simulate formation Temperature-pressure Conditions.
For this reason, the present invention proposes a kind of oil-gas migration physical simulating device, and described oil-gas migration physical simulating device comprises: insulating box and the fill out sand tube be arranged in described insulating box.
Further, described oil-gas migration physical simulating device also comprises: insulating box locomotive, and described insulating box is arranged on described insulating box locomotive by rotating shaft energy Arbitrary Rotation, and indicating value locking.
Further, described fill out sand tube is: for the glass fill out sand tube of the normal pressure that oil and gas secondary migration macroscopic visual is observed.
Further, described fill out sand tube is: for the HTHP fill out sand tube of oil and gas secondary migration microexamination, and one end of described HTHP fill out sand tube is movable end, and described movable end is provided with the extrusion piston of closed described HTHP fill out sand tube.
Further, described oil-gas migration physical simulating device also comprises: be connected with described extrusion piston and wear out the piston guide rod of described insulating box, described extrusion piston is connected with displacement grating by described piston guide rod, and described displacement grating is arranged on outside described insulating box.
Further, described insulating box inside is provided with the model clamper clamping described fill out sand tube.
Further, described insulating box inside be provided with adjustable angle revolving mirror and, described revolving mirror and be positioned at described normal pressure glass fill out sand tube outside, during for studying tilted stratum migration, the top of the glass fill out sand tube of described normal pressure and and just and process monitoring.
Further, described insulating box is cuboid, the usefull space 2000 × 400 × 500mm, maximum operating temperature 180 DEG C, described HTHP fill out sand tube usefull space φ 38 × 1800mm, maximum working pressure 70MPa.
Further, be provided with pressure-measuring-point in described HTHP fill out sand tube, described oil-gas migration physical simulating device also comprises: the pressure sensor detecting described pressure-measuring-point place, described pressure sensor is arranged on outside described insulating box.
The present invention also provides a kind of oil-gas migration experimental technique, is arranged in insulating box by the glass fill out sand tube of normal pressure, adopts crude oil carry out oil and gas secondary migration experiment and carry out visible observation, carries out the research of oil gas macroscopic view migration process.
Further, take out the glass fill out sand tube of described normal pressure, replace the glass fill out sand tube of described normal pressure with HTHP fill out sand tube, described HTHP fill out sand tube is pressurizeed, simulated oil gas migration process, research oil gas microcosmic migration mechanism.
Owing to present invention employs insulating box, the fill out sand tube be arranged in described insulating box can be heated, thus, crude oil can be adopted to carry out oil migration experiment and overcome the difficulty of crude oil poor fluidity at normal temperatures, completing the research of oil and gas secondary migration visible physical simulation.
And then, the present invention additionally uses HTHP fill out sand tube, Pressurized-heated is carried out to sandpack column, thus reach underground Temperature-pressure Conditions, be accomplished the function of the not visible PHYSICAL MODELING OF IN of HTHP, oil and gas secondary migration macroscopic view migration process and the research of microcosmic migration mechanism can be combined, improve oil and gas secondary migration PHYSICAL MODELING OF IN.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of the oil-gas migration physical simulating device according to the embodiment of the present invention;
Fig. 2 shows the structure of the glass fill out sand tube of the normal pressure according to the embodiment of the present invention from overlooking direction;
Fig. 3 shows the structure of the HTHP fill out sand tube according to the embodiment of the present invention from overlooking direction.
Drawing reference numeral illustrates:
1-universal caster, 2-insulating box locomotive, 3-operation control box, 4-supporting base, 5-circumvolve lock set kit, 6-bolster 7-limited block, 8-pressure sensor, 9-model support, 10-displacement grating, 11-insulating box, 12-piston guide rod, 13-extrusion piston, 14-model pipe, 15-model pressure tap, 16-model flange, 17-model pipe entrance, 18-insulating box motor, 19-revolving mirror and, the glass fill out sand tube of 20-normal pressure, 21-insulating box form, 22-insulating box hasp, 23-HTHP fill out sand tube, the side away from insulating box form of the side 203-glass fill out sand tube of the close insulating box form of 24-model clamper 201-glass fill out sand tube
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 illustrate of the present invention
Detailed description of the invention.
Fig. 1 shows the overall structure of the oil-gas migration physical simulating device according to the embodiment of the present invention from side-looking direction.As shown in Figure 1, comprise according to the oil-gas migration physical simulating device of the embodiment of the present invention: insulating box 11 and the fill out sand tube be arranged in described insulating box 11.Insulating box 11 can provide the temperature condition of underground, can be equipped with by the loose original mold type (i.e. sandpack column) tested for oil-gas migration, simulate formation permeability sandstone formation in fill out sand tube.Fill out sand tube of the present invention is such as one dimension fill out sand tube, studies for one dimension oil and gas secondary migration physical simulation experiment.Fill out sand tube of the present invention can adopt two kinds of fill out sand tube respectively, and a kind of macroscopic visual carried out under normal pressure is observed, and namely adopts the glass fill out sand tube of normal pressure, carries out the research of oil gas macroscopic view migration process; A kind of for the not visible microcosmic migration research under high pressure, namely adopt HTHP fill out sand tube, such as, be the stainless steel fill out sand tube of high pressure, carry out oil-gas migration process microconstituent Changeement.
As shown in Figures 2 and 3, described insulating box 11 inside is provided with the model clamper 24 clamping described fill out sand tube, and model clamper 24 is arranged on the model support 9 of insulating box 11 inside setting, and by model clamper 24, it is inner that fill out sand tube is clamped in insulating box 11.
As shown in Figure 2, described fill out sand tube is: for the glass fill out sand tube 20 of the normal pressure that oil and gas secondary migration macroscopic visual is observed, described insulating box is provided with the observation port 21 of the glass fill out sand tube 20 observing described normal pressure, and observation port 21 is arranged on the outside of the glass fill out sand tube 20 of normal pressure.The glass fill out sand tube 20 of normal pressure is the conventional fill out sand tube for visible observation, the glass fill out sand tube 20 of normal pressure is arranged in described insulating box by the present invention, heat, thus, crude oil can be adopted to carry out oil migration experiment and overcome the difficulty of crude oil poor fluidity at normal temperatures, completing and utilize original research carrying out the simulation of oil and gas secondary migration visible physical.
Further, as shown in Figure 2, described insulating box 11 inside is provided with the rotation minute surface 19 of adjustable angle, described revolving mirror and 19 are positioned at outside the glass fill out sand tube 20 of described normal pressure, and be positioned at away from or depart from the side of observation port 21, during for studying tilted stratum migration, the top of the glass fill out sand tube 20 of described normal pressure and and just and process monitoring.
As shown in Figure 2, insulating box 11 is cuboid, to make.Insulating box 11 is cuboid, the usefull space 2000 × 400 × 500mm; Insulating box is fixed on insulating box locomotive 2 by supporting base 4 and bolster 6, insulating box locomotive 2 times and be provided with four universal casters 1, can move integrally this covering device; Operation control box 3 is integrated on insulating box locomotive 2, facilitates experimental implementation; Insulating box 11 can experimentally require to realize tilting at any angle by bolster 6 and limited block 7, locks by circumvolve lock set kit 5 indicating value (the display anglec of rotation); Insulating box 11 bottom is designed with an insulating box motor 18, and ensure the temperature equalization of box house, maximum operating temperature is 180 DEG C, and can carry out temperature adjusting and selection, can reach the temperature condition of underground.
Observation port 21 be positioned at insulating box 11 a side and on, all the other are each and owing to arranging miscellaneous part, sight glass fill out sand tube 20 cannot be carried out, thus, the side 201 of the close insulating box form 21 of the glass fill out sand tube 20 of normal pressure can only be observed by observation port 21, cannot observe the glass fill out sand tube 20 of normal pressure top and and the side 203 away from insulating box form of glass fill out sand tube.By arranging the rotation minute surface 19 of adjustable angle, just can the situation of glass fill out sand tube 20 of observation normal pressure of multi-angle, the experimentation in each orientation can be obtained.Insulating box form 21 can turn over below, opens insulating box 11.In addition, DV and digital camera can also be set outside observation port 21, real time record can be carried out to whole experimentation.
Further, as shown in Figure 3, described fill out sand tube is: for the HTHP fill out sand tube 23 of oil and gas secondary migration microexamination.The main distinction of the glass fill out sand tube 20 of HTHP fill out sand tube and existing normal pressure has: HTHP fill out sand tube 23 is non-glass materials, such as, be steel or metal material, to bear high pressure; In addition, one end of HTHP fill out sand tube 23 is provided with the extrusion piston 13 of closed described HTHP fill out sand tube.It is φ 38 × 1800mm that HTHP fill out sand tube 23 designs the usefull space, and establish three sections of bodys altogether, length is respectively 900mm, 600mm, 300mm, is connected by flange 16, wherein arranges extrusion piston 13 in 300mm section.As shown in Figure 1, one end (being upper end in Fig. 1) of described HTHP fill out sand tube 23 is movable end, and the other end (being lower end in Fig. 1) of HTHP fill out sand tube 23 is model pipe entrance 17 (i.e. arrival end).Described movable end is provided with the extrusion piston 13 of closed described HTHP fill out sand tube, by the movement of extrusion piston 13, along the sandpack column of the length direction extruding HTHP fill out sand tube 23 of HTHP fill out sand tube 23, with the compacting to sandpack column, the condition of subsurface pressure can be reached.By extrusion piston 13, can pressurize for model, maximum working pressure 70MPa.In addition, HTHP fill out sand tube 23 has fluid issuing, and fluid issuing is positioned on the port of piston guide rod.
Further, as shown in Figure 1, described oil-gas migration physical simulating device also comprises: be connected with described extrusion piston 13 and wear out the piston guide rod 12 of described insulating box 11, piston guide rod 12 can connect the driving mechanism (not shown) be arranged on outside insulating box 11, such as connect electrodynamic pump, described extrusion piston 13 is connected with displacement grating 10 (also claiming electronic ruler or linear displacement grating sensor) by described piston guide rod 12, the amount of compaction of model in the process of supercharging can be recorded in, described displacement grating 10 is arranged on outside described insulating box 11, can from the high temperature of insulating box 11.
Further, as shown in Figure 1, pressure-measuring-point 15 is provided with in described HTHP fill out sand tube 23, described oil-gas migration physical simulating device also comprises: the pressure sensor 8 detecting described pressure-measuring-point 15 place, be distributed with 6 pressure-measuring-points 15 in HTHP fill out sand tube 23, but also arrange 1 at model pipe entrance 17, arrange 1 in outlet, for recording in oil-gas migration process, the pressure changing of different parts; Model inwall adopts electric spark hacking, can eliminate boundary effect as far as possible.Described pressure sensor 8 is arranged on outside described insulating box 11, with the high temperature from insulating box 11.Pressure sensor 8 can pass through wired connection detected pressures measuring point 15.
The present invention also provides a kind of oil-gas migration experimental technique, is arranged in insulating box 11 by the glass fill out sand tube 20 of normal pressure, adopts crude oil carry out the experiment of oil and gas secondary migration macroscopic view migration process and carry out visible observation.
Further, take out the glass fill out sand tube of described normal pressure, the glass fill out sand tube of described normal pressure is replaced with HTHP fill out sand tube, still crude oil is adopted to test, described HTHP fill out sand tube is pressurizeed, simulated oil gas migration process, research oil gas microcosmic migration mechanism, analyzing oil and gas microconstituent changes.The present invention can replace and adopt the glass fill out sand tube 20 of normal pressure and HTHP fill out sand tube 23 to carry out the simulation of oil and gas secondary migration visible physical and the not visible physical analogy of HTHP two experiments respectively, better oil and gas secondary migration macroscopic view migration process and the research of microcosmic migration mechanism are combined, improve the means of oil and gas secondary migration PHYSICAL MODELING OF IN.
Because controlled temperature is arranged, one dimension glass tube visual model (the glass fill out sand tube of normal pressure) can carry out crude oil secondary migration physical simulation experiment, and achieve novelty understanding by series of experiment research, find the effect due to self viscous force in crude oil secondary migration process, often cause the resistance of himself migrating to be greater than the capillary resistance of oily expelling water migration, good facilitation is served to fine and close Forming Mechanism of Hydrocarbon research; Due to the development of the HTHP model (HTHP fill out sand tube) corresponding with visual model, loose sample model experiment can the compacting condition of simulate formation, make experimentation and underground more close, enhance the applicability of analog result.
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.For each ingredient of the present invention can mutually combine under the condition of not conflicting, 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. an oil-gas migration physical simulating device, is characterized in that, described oil-gas migration physical simulating device comprises: insulating box and the fill out sand tube be arranged in described insulating box;
Described fill out sand tube is: for the glass fill out sand tube of the normal pressure that oil and gas secondary migration macroscopic visual is observed, described insulating box is provided with the observation port of the glass fill out sand tube observing described normal pressure;
Described insulating box inside is provided with the rotation minute surface of adjustable angle, and described rotation minute surface is positioned at outside the glass fill out sand tube of described normal pressure, during for studying tilted stratum migration, and the end face of glass fill out sand tube of described normal pressure and the process monitoring in front;
DV and digital camera are set outside observation port, real time record is carried out to whole experimentation.
2. oil-gas migration physical simulating device as claimed in claim 1, it is characterized in that, described oil-gas migration physical simulating device also comprises: insulating box locomotive, and described insulating box is arranged on described insulating box locomotive by rotating shaft energy Arbitrary Rotation, and indicating value locking.
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| CN201210299653.5A CN102808614B (en) | 2012-08-21 | 2012-08-21 | Oil-gas migration physical simulating device and oil-gas migration experimental technique |
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| CN102808614B true CN102808614B (en) | 2015-11-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103397874B (en) * | 2013-08-06 | 2016-05-25 | 中国海洋石油总公司 | The solid sand evaluation experimental device of chemical sand control |
| CN104459818A (en) * | 2013-09-23 | 2015-03-25 | 中国石油化工股份有限公司 | Oil-gas migration simulation experiment device and method |
| CN104792908B (en) * | 2015-04-20 | 2016-04-13 | 中国石油大学(华东) | A kind of pick-up unit of oil-gas component secondary migration effect and detection method |
| CN105137035B (en) * | 2015-08-20 | 2016-08-17 | 中国石油大学(华东) | Sand body-plane of unconformity-fault transfer system control oil migration experimental provision and experimental technique |
| CN105178954B (en) * | 2015-10-29 | 2018-03-23 | 中国石油大学(华东) | Unconformity barrier oil-gas reservoir physical simulation experiment device and experimental method |
| CN107725047B (en) * | 2017-10-31 | 2023-09-08 | 中国石油大学(北京) | Experimental device, experimental system and experimental method for observing petroleum migration |
| CN109973086A (en) * | 2019-02-25 | 2019-07-05 | 中国石油大学(北京) | Simulate the experimental provision of remaining oil migration and aggregation |
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