CN102519831B - Semi-permeable partition rock core capillary pressure and resistivity measuring device - Google Patents
Semi-permeable partition rock core capillary pressure and resistivity measuring device Download PDFInfo
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- CN102519831B CN102519831B CN201110327643.3A CN201110327643A CN102519831B CN 102519831 B CN102519831 B CN 102519831B CN 201110327643 A CN201110327643 A CN 201110327643A CN 102519831 B CN102519831 B CN 102519831B
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Abstract
Relating to the technical field of rock core capillary pressure and resistivity measuring devices, the invention provides a semi-permeable partition rock core capillary pressure and resistivity measuring device, which comprises an instrument rack, a rock core holder, a semi-permeable partition rock core chamber, an effluent liquid metering device, a pressure regulation and control device, a display device, a pressure regulation driving device and a computer. The instrument rack includes a frame, a transverse frame plate, a working platform and a placement stand. The transverse frame plate is fixed at the upper end of the frame, the working platform is positioned on the frame below the transverse frame plate, the placement stand is disposed on the frame under the front part of the work platform, and the rock core holder able to measure the rock core resistivity is fixedly installed in the central part of the lower end of the transverse frame plate. With reasonable and compact structure, as well as convenient usage, the measuring device of the invention has the advantages of simple and rapid operation, high measuring efficiency, stable and reliable rock core capillary pressure and resistivity measurement, accurate measurement, as well as simplicity and high efficiency.
Description
Technical field
the present invention relates to rock core capillary pressure and resistivity test device technical field, is a kind of semi-transparent partition rock core capillary pressure resistivity test device.
Background technology
rock core capillary pressure and resistivity, be indispensable technical parameter in oilfield exploratory development, and at present, capillary pressure and the different saturation of senior middle school's permeable reservoir strata rock core generally measured in oil field with rock core semi-permeable plate 38 measurement mechanisms.Existing semi-permeable plate 38 technology mainly contain two kinds, one is that single rock core is measured, one is that many rock cores are measured, because the 38 commercial measurement cycles of semi-permeable plate are longer, therefore the many rock cores of practical application more options are measured, be arranged on and on a dividing plate, be array and distribute and measure by multiple rock cores, but due to the complicacy of rock core, existing rock core semi-permeable plate 38 measurement mechanisms exist that specific aim is strong, displacement pressure setting accuracy is low, liquid outlet quantity and resistivity measurement error is large, experimental period is long problem.If carry out rock core capillary pressure and resistivity translocation,, because rock core resistivity contact resistance is large, measuring accuracy is lower; If rock core capillary pressure and resistivity are separately measured, be that removal of core is weighed and measures rock core saturation degree by aquifer yield, removal of core is measured rock core resistivity to rock core resistivity apparatus again, so not only measurement result is subject to the impact of environment temperature and humidity larger, and complex operation, measurement efficiency are lower, in addition adopt while dividing bulk measurement, measure cost also higher.
Summary of the invention
the invention provides a kind of semi-transparent partition rock core capillary pressure resistivity test device, overcome the deficiency of above-mentioned prior art, it can effectively solve, and existing rock core capillary pressure and resistivity test device exist that measuring accuracy is lower, complex operation, efficiency is lower, cost is higher problem.
technical scheme of the present invention realizes by following measures: a kind of semi-transparent partition rock core capillary pressure resistivity test device, comprises instrument stand, core holding unit, partly oozes slate ventricle, liquid metering device, Regulation Control device, display device, pressure regulation drive unit and computing machine, instrument stand comprises frame, transverse frame plate, workbench and articles holding table, the upper end of frame is fixed with transverse frame plate, in the frame of transverse frame plate below, there is workbench, in the frame of workbench forward lower part, there is articles holding table, middle part, transverse frame plate lower end is installed with the core holding unit that can measure rock core columnar resistance rate, on workbench, be installed be no less than one can measure rock core post capillary pressure partly ooze slate ventricle, in the frame of workbench bottom, be provided with and can measure the corresponding liquid metering device of slate heart laboratory core post liquid outlet quantity that partly oozes, the holding chamber that can keep in rock core post is installed on articles holding table, articles holding table front portion is provided with display device, pressure regulation drive unit is installed in the frame of articles holding table bottom, articles holding table right part is provided with and can gathers and process capillary pressure signal, the computing machine of resistivity signal and liquid outlet quantity signal.
the further optimization and/or improvements to foregoing invention technical scheme below:
during above-mentioned Regulation Control device can comprise, ooze pressure regulator valve, height oozes pressure regulator valve, gas control pressure regulator valve and gas drive pressure regulator valve, the frame front of workbench below is fixed with guidance panel, the left part of upper guidance panel be provided with can independently control partly ooze the work of slate ventricle in ooze pressure regulator valve, the right part of upper guidance panel is provided with the independent height that partly oozes the work of slate ventricle of controlling and oozes pressure regulator valve, the frame front of articles holding table below is fixed with lower guidance panel, and the middle part of lower guidance panel is provided with gas control pressure regulator valve and the gas drive pressure regulator valve that can control respectively core holding unit; Pressure regulation drive unit comprises quiet air lift pump, gas boosting pump and control box, and quiet air lift pump, gas boosting pump and control box are fixedly mounted on respectively in the frame of articles holding table below.
above-mentioned core rock heart clamp holder can comprise grip slipper, gripper cylinder, connecting cylinder, clamping cylinder piston rod, advances electrode, insulating boot, plunger electrode, hydraulic pressure chamber, hydraulic pressure transducer, presses down gas admittance valve, presses down atmospheric valve, be retracted into air valve and retraction atmospheric valve; The upper end of grip slipper is fixedly mounted on middle part, transverse frame plate lower end, the lower end of grip slipper is installed with gripper cylinder, the clamping cylinder piston rod that can stretch out is downwards arranged at the bottom of gripper cylinder, the cylinder body lower end of gripper cylinder is fixedly connected with insulating boot by connecting cylinder, there is placed cavity the inside of insulating boot, the lower end of clamping cylinder piston rod extends placed cavity inside and is installed with propelling electrode, and there is the inner placement mouth being connected with placed cavity the front portion of insulating boot, and the bottom of placed cavity is provided with plunger electrode; The bottom of insulating boot is installed with hydraulic pressure chamber, there is hydraulic cavities the inside of hydraulic pressure chamber, there is pressure measurement plunger the lower end of plunger electrode, and pressure measurement plunger is positioned at hydraulic cavities inside and can moves up and down, and the outer lower portion of hydraulic pressure chamber is provided with the hydraulic pressure transducer that can detect hydraulic cavities internal liquid pressure; The upper right of gripper cylinder and left side are separately installed with and press down gas admittance valve and press down atmospheric valve, and the right side, bottom of gripper cylinder and left side are separately installed with and are retracted into air valve and retraction atmospheric valve.
the above-mentioned slate ventricle that partly oozes can comprise tank at the bottom of rock core, advance seal closure, rock core pressure cap, sealing socket, dividing plate ring set, semi-permeable plate, filtration cushion and pressure-bearing pad, at the bottom of rock core, the outer middle side part of tank has draw-in groove and is fixedly mounted on workbench by draw-in groove, at the bottom of rock core, there is tank chamber, the end inside of tank, the end upper inside wall in tank chamber has annular groove, at the bottom of rock core, on the upper outside face of tank, there is end tank external thread and be installed with rock core pressure cap, at the bottom of rock core, air admission hole inner and annular groove intracavity inter-connection is arranged at the left outer top of tank, at the bottom of rock core, the outside right lower quadrant of tank has the inner inlet opening being connected with tank chamber, the end, at the bottom of rock core, the inner fluid hole being connected with tank chamber, the end is arranged at the left outer bottom of tank, the taphole that at the bottom of rock core, middle part, the bottom surface of tank has Yu Diguan chamber, upper end to be connected, the lower end of sealing socket is sitting on the bottom surface of annular groove, there is the bracket that can place rock core post the inside of sealing socket, dividing plate ring set is positioned at the tank chamber, the end of sealing socket bottom, in the inner chamber of dividing plate ring set, be from top to bottom fixed with successively semi-permeable plate, filter cushion and pressure-bearing pad, advance seal closure bottom to be sleeved in the inner chamber of annular groove and be fixed at the bottom of rock core on tank by rock core pressure cap, advance the inside of seal closure to have the container cavity that can hold rock core post, the roof middle part of container cavity is installed with lower end and rock core post can be pressed on to the spring on bracket, advance the outer lower portion of seal closure to have propelling cover seal groove and the propelling cover O-ring seal that can make to advance maintenance sealing between seal closure lateral surface and annular groove sidewall is installed, on the lateral surface of sealing socket, there is envelope seat seal groove and be provided with and can make to advance the envelope seat O-ring seal that keeps sealing between sealing socket lateral surface and annular groove sidewall, on the upper outside face of dividing plate ring set, there is diaphragm housing ring water jacket and the diaphragm housing ring exterior seal ring that can make to keep between dividing plate ring set outside and the end tank cavity wall sealing is installed, in the upper inside wall of dividing plate ring set, there is diaphragm housing ring inside groove and the diaphragm housing ring inner seal ring that can make to keep between dividing plate ring set inwall and semi-permeable plate lateral surface sealing is installed.
above-mentioned liquid metering device can comprise liquid trap, surveys liquid air release, surveys liquid liquid feed valve, surveys liquid sensor and survey liquid bleeder valve; Liquid trap is fixedly mounted in the frame of workbench bottom, the upper end of liquid trap is installed with surveys liquid air release, the left outer bottom of liquid trap is installed with surveys liquid liquid feed valve, the outside right lower quadrant of liquid trap is installed with surveys liquid sensor, and the lower end of liquid trap is installed with surveys liquid bleeder valve.
above-mentioned workbench bottom can be provided with thermostat and constant-moisture device; Thermostat comprises electric heater, and electric heater is fixedly mounted in the frame of bottom, workbench left side; Constant-moisture device comprises humidification nozzle and gas humidifier, humidification nozzle is fixedly mounted in the frame of bottom, workbench left side, gas humidification device is fixedly mounted in the frame of articles holding table below, the outlet of gas humidification device is connected with the air intake opening of humidification nozzle by tracheae, and the gas outlet of humidification nozzle is positioned on workbench upper surface.
above-mentioned display device can comprise temp control indicator, wet control display, gas control pressure display unit and gas drive pressure display unit; Left part top and left part that temp control indicator, wet control display are fixedly mounted on respectively lower guidance panel are following, and it is following that gas control pressure display unit and gas drive pressure display unit are fixedly mounted on respectively right part top and the right part of lower guidance panel.
above-mentioned lower guidance panel middle part can be installed with digital electric bridge, advance electrode and plunger electrode to be electrically connected by the signal input terminal of electrode cable and digital electric bridge respectively, the signal input terminal of computing machine and the lead-out terminal of digital electric bridge are electrically connected.
above-mentioned transverse frame plate bottom can be provided with scavenger fan.
reasonable and compact in structure of the present invention, easy to use, its have simple and quick, measure high, the rock core capillary pressure of efficiency and resistivity measurement is reliable and stable, measure accurately, the feature of simple and effective.
Accompanying drawing explanation
the master that accompanying drawing 1 is most preferred embodiment of the present invention looks broken section structural representation.
accompanying drawing 2 is the main TV structure schematic diagram of the core holding unit in accompanying drawing 1.
accompanying drawing 3 is the sectional structure schematic diagram that partly oozes slate ventricle in accompanying drawing 1.
accompanying drawing 4 is the main TV structure schematic diagram of the liquid metering device in accompanying drawing 1.
coding in accompanying drawing is respectively: 1 is core holding unit, 2 for partly oozing slate ventricle, 3 is liquid metering device, 4 is computing machine, 5 is frame, 6 is transverse frame plate, 7 is workbench, 8 is articles holding table, 9 is rock core post, 10 is holding chamber, 11 ooze pressure regulator valve in being, 12 ooze pressure regulator valve for height, 13 is gas control pressure regulator valve, 14 is gas drive pressure regulator valve, 15 is upper guidance panel, 16 is lower guidance panel, 17 is quiet air lift pump, 18 is gas boosting pump, 19 is control box, 20 is grip slipper, 21 is gripper cylinder, 22 is connecting cylinder, 23 for advancing electrode, 24 is insulating boot, 25 is plunger electrode, 26 is hydraulic pressure chamber, 27 is hydraulic pressure transducer, 28 for pressing down gas admittance valve, 29 for pressing down atmospheric valve, 30 for being retracted into air valve, 31 is retraction atmospheric valve, 32 for placing mouth, 33 is tank at the bottom of rock core, 34 for advancing seal closure, 35 is rock core pressure cap, 36 is sealing socket, 37 is dividing plate ring set, 38 is semi-permeable plate, 39 for filtering cushion, 40 is pressure-bearing pad, 41 is draw-in groove, 42 is annular groove, 43 is end tank external thread, 44 is air admission hole, 45 is inlet opening, 46 is fluid hole, 47 is taphole, 48 is bracket, 49 is container cavity, 50 is spring, 51 for advancing cover O-ring seal, 52 is envelope seat O-ring seal, 53 is diaphragm housing ring exterior seal ring, 54 is diaphragm housing ring inner seal ring, 55 is liquid trap, 56 for surveying liquid air release, 57 for surveying liquid liquid feed valve, 58 for surveying liquid sensor, 59 for surveying liquid bleeder valve, 60 is electric heater, 61 is humidification nozzle, 62 is gas humidification device, 63 is temp control indicator, 64 is wet control display, 65 is gas control pressure display unit, 66 is gas drive pressure display unit, 67 is digital electric bridge, 68 is scavenger fan.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.
in the present invention, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description.
below in conjunction with most preferred embodiment and accompanying drawing, the invention will be further described:
as shown in accompanying drawing 1,2,3,4, this semi-transparent partition rock core capillary pressure resistivity test device comprises instrument stand, core holding unit 1, partly oozes slate ventricle 2, liquid metering device 3, Regulation Control device, display device, pressure regulation drive unit and computing machine 4, instrument stand comprises frame 5, transverse frame plate 6, workbench 7 and articles holding table 8, the upper end of frame 5 is fixed with transverse frame plate 6, in the frame 5 of transverse frame plate 6 belows, there is workbench 7, in the frame 5 of workbench 7 forward lower part, there is articles holding table 8, transverse frame plate 6 middle parts, lower end are installed with the core holding unit 1 that can measure rock core post 9 resistivity, on workbench 7, be installed be no less than one can measure rock core post 9 capillary pressures partly ooze slate ventricle 2, in the frame 5 of workbench 7 bottoms, be provided with and can measure the corresponding liquid metering device 3 of interior rock core post 9 liquid outlet quantity of slate ventricle 2 that partly oozes, the holding chamber 10 that can keep in rock core post 9 is installed on articles holding table 8, articles holding table 8 front portions are provided with display device, in the frame 5 of articles holding table 8 bottoms, pressure regulation drive unit is installed, articles holding table 8 right parts are provided with and can gather and process capillary pressure signal, the computing machine 4 of resistivity signal and liquid outlet quantity signal.Can determine the saturation degree of multiple rock core posts 9 by the present invention simultaneously, complete saturated rock core post 9 is carried out in displacement process, can be to each rock core post 9 complete independently displacement processes by independently partly oozing slate ventricle 2, the saturation degree that corresponding liquid metering device 3 can detect each rock core post 9 in real time changes, under the displacement pressure condition of setting, automatically gather the liquid outlet quantity of each rock core post 9 by computing machine 4, in the time that liquid level no longer changes, can process the saturation degree of determining tested rock core post 9 by computing machine 4.
can according to actual needs, above-mentioned semi-transparent partition rock core capillary pressure resistivity test device be made further optimization and/or improvements:
as shown in Figure 1, during comprising, Regulation Control device oozes pressure regulator valve 11, height oozes pressure regulator valve 12, gas control pressure regulator valve 13 and gas drive pressure regulator valve 14, frame 5 front portions of workbench 7 belows are fixed with guidance panel 15, the left part of upper guidance panel 15 be provided with can independently control partly ooze that slate ventricle 2 works in ooze pressure regulator valve 11, the right part of upper guidance panel 15 is provided with independent control and partly oozes the height that slate ventricle 2 works and ooze pressure regulator valve 12, frame 5 front portions of articles holding table 8 belows are fixed with lower guidance panel 16, the middle part of lower guidance panel 16 is provided with gas control pressure regulator valve 13 and the gas drive pressure regulator valve 14 that can control respectively core holding unit 1, pressure regulation drive unit comprises quiet air lift pump 17, gas boosting pump 18 and control box 19, and quiet air lift pump 17, gas boosting pump 18 and control box 19 are fixedly mounted on respectively in the frame 5 of articles holding table 8 belows.
as shown in Figure 2, core rock heart clamp holder 1 comprises grip slipper 20, gripper cylinder 21, connecting cylinder 22, clamping cylinder piston rod, advances electrode 23, insulating boot 24, plunger electrode 25, hydraulic pressure chamber 26, hydraulic pressure transducer 27, presses down gas admittance valve 28, presses down atmospheric valve 29, is retracted into air valve 30 and retraction atmospheric valve 31; The upper end of grip slipper 20 is fixedly mounted on transverse frame plate 6 middle parts, lower end, the lower end of grip slipper 20 is installed with gripper cylinder 21, the clamping cylinder piston rod that can stretch out is downwards arranged at the bottom of gripper cylinder 21, the cylinder body lower end of gripper cylinder 21 is fixedly connected with insulating boot 24 by connecting cylinder 22, there is placed cavity the inside of insulating boot 24, the lower end of clamping cylinder piston rod extends placed cavity inside and is installed with and advances electrode 23, there is the inner placement mouth 32 being connected with placed cavity the front portion of insulating boot 24, and the bottom of placed cavity is provided with plunger electrode 25; The bottom of insulating boot 24 is installed with hydraulic pressure chamber 26, there is hydraulic cavities the inside of hydraulic pressure chamber 26, there is pressure measurement plunger the lower end of plunger electrode 25, pressure measurement plunger is positioned at hydraulic cavities inside and can moves up and down, and the outer lower portion of hydraulic pressure chamber 26 is provided with the hydraulic pressure transducer 27 that can detect hydraulic cavities internal liquid pressure; The upper right of gripper cylinder 21 and left side are separately installed with and press down gas admittance valve 28 and press down atmospheric valve 29, and the right side, bottom of gripper cylinder 21 and left side are separately installed with and are retracted into air valve 30 and retraction atmospheric valve 31.Making to press down gas admittance valve 28 by Regulation Control device opens, pressing down atmospheric valve 29 closes and makes gripper cylinder 21 work, clamping cylinder piston rod drives and advances electrode 23 to move down, advance electrode 23 lower ends, plunger electrode 25 upper ends respectively with the resistivity of the upper and lower end face coupling measurement rock core post 9 of rock core post 9, computing machine 4 gathers capillary pressure and rock core resistivity automatically, after being completed, Regulation Control device makes to be retracted into air valve 30 and opens, retraction atmospheric valve 31 cuts out and makes gripper cylinder 21 work, clamping cylinder piston rod drives to advance on electrode 23 and moves, so that take out and change rock core post 9.
as shown in Figure 3, partly ooze that slate ventricle 2 comprises tank 33 at the bottom of rock core, advances seal closure 34, rock core pressure cap 35, sealing socket 36, dividing plate ring set 37, semi-permeable plate 38, filter cushion 39 and pressure-bearing pad 40, at the bottom of rock core, the outer middle side part of tank 33 has draw-in groove 41 and is fixedly mounted on workbench 7 by draw-in groove 41, at the bottom of rock core, there is tank chamber, the end inside of tank 33, the upper inside wall in tank chamber, the end has annular groove 42, at the bottom of rock core, on the upper outside face of tank 33, there is end tank external thread 43 and be installed with rock core pressure cap 35, at the bottom of rock core, air admission holes 44 inner and annular groove 42 intracavity inter-connections are arranged at the left outer top of tank 33, at the bottom of rock core, the outside right lower quadrant of tank 33 has the inner inlet opening 45 being connected with tank chamber, the end, at the bottom of rock core, the inner fluid hole 46 being connected with tank chamber, the end is arranged at the left outer bottom of tank 33, the taphole 47 that at the bottom of rock core, middle part, the bottom surface of tank 33 has Yu Diguan chamber, upper end to be connected, the lower end of sealing socket 36 is sitting on the bottom surface of annular groove 42, there is the bracket 48 that can place rock core post 9 inside of sealing socket 36, dividing plate ring set 37 is positioned at the tank chamber, the end of sealing socket 36 bottoms, in the inner chamber of dividing plate ring set 37, be from top to bottom fixed with successively semi-permeable plate 38, filter cushion 39 and pressure-bearing pad 40, advance seal closure 34 bottoms to be sleeved in the inner chamber of annular groove 42 and be fixed at the bottom of rock core on tank 33 by rock core pressure cap 35, advance the inside of seal closure 34 to have the container cavity 49 that can hold rock core post 9, the roof middle part of container cavity 49 is installed with lower end and rock core post 9 can be pressed on to the spring 50 on bracket 48, advance the outer lower portion of seal closure 34 to have propelling cover seal groove and the propelling cover O-ring seal 51 that can make to advance maintenance sealing between seal closure 34 lateral surfaces and annular groove 42 sidewalls is installed, on the lateral surface of sealing socket 36, there is envelope seat seal groove and be provided with and can make to advance the envelope seat O-ring seal 52 that keeps sealing between sealing socket 36 lateral surfaces and annular groove 42 sidewalls, on the upper outside face of dividing plate ring set 37, there is diaphragm housing ring water jacket and the diaphragm housing ring exterior seal ring 53 that can make to keep between dividing plate ring set 37 outsides and the end tank cavity wall sealing is installed, in the upper inside wall of dividing plate ring set 37, there is diaphragm housing ring inside groove and the diaphragm housing ring inner seal ring 54 that can make to keep between dividing plate ring set 37 inwalls and semi-permeable plate 38 lateral surfaces sealing is installed.Each slate ventricle 2 that partly oozes is independently displacement systems, can ooze pressure regulator valve 12 adjusting control displacement pressures by oozing pressure regulator valve 11 and height in corresponding, and be connected with corresponding liquid metering device 3.According to the different displacement pressure of different set of rock core post 9 penetrating powers, displacement pressure imports computing machine 4 into by pressure transducer, and then determines the displacement pressure of rock core post 9 under certain saturation degree, the both capillary pressure of rock core post 9.
as shown in Figure 4, liquid metering device 3 comprises liquid trap 55, surveys liquid air release 56, surveys liquid liquid feed valve 57, surveys liquid sensor 58 and surveys liquid bleeder valve 59; Liquid trap 55 is fixedly mounted in the frame 5 of workbench 7 bottoms, the upper end of liquid trap 55 is installed with surveys liquid air release 56, the left outer bottom of liquid trap 55 is installed with surveys liquid liquid feed valve 57, the outside right lower quadrant of liquid trap 55 is installed with surveys liquid sensor 58, and the lower end of liquid trap 55 is installed with surveys liquid bleeder valve 59.By the liquid trap 55 on liquid metering device 3 independently with survey liquid sensor 58, gather the liquid outlet quantity of each rock core post 9, determine each rock core post 9 saturation degrees by computing machine 4 routine processes, simple and quick.
as shown in Figure 1, workbench 7 bottoms are provided with thermostat and constant-moisture device; Thermostat comprises electric heater 60, and electric heater 60 is fixedly mounted in the frame 5 of workbench 7 bottoms, left side; Constant-moisture device comprises humidification nozzle 61 and gas humidifier 62, humidification nozzle 61 is fixedly mounted in the frame 5 of workbench 7 bottoms, left side, gas humidification device 62 is fixedly mounted in the frame 5 of articles holding table 8 belows, the outlet of gas humidification device 62 is connected with the air intake opening of humidification nozzle 61 by tracheae, and the gas outlet of humidification nozzle 61 is positioned on workbench 7 upper surfaces.
as shown in Figure 1, display device comprises temp control indicator 63, wet control display 64, gas control pressure display unit 65 and gas drive pressure display unit 66; Left part top and left part that temp control indicator 63, wet control display 64 are fixedly mounted on respectively lower guidance panel 16 are following, and it is following that gas control pressure display unit 65 and gas drive pressure display unit 66 are fixedly mounted on respectively right part top and the right part of lower guidance panel 16.
as shown in Figure 1, lower guidance panel 16 middle parts are installed with digital electric bridge 67, advance electrode 23 and plunger electrode 25 to be electrically connected by the signal input terminal of electrode cable and digital electric bridge 67 respectively, the lead-out terminal of the signal input terminal of computing machine 4 and digital electric bridge 67 is electrically connected.
as shown in Figure 1, transverse frame plate 6 bottoms are provided with scavenger fan 68.
above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the course of work of most preferred embodiment of the present invention is: first opening device, digital electric bridge 67 and computing machine 4 power supplys, regulate gas control pressure regulator valve 13, gas drive pressure regulator valve 14 is to set pressure, starting computing machine 4 controls, gather, handling procedure, setting device temperature humidity, adjustment goes out liquid trap 55 liquid level null values, multiple saturated rock cores are put into rock core resistivity core holding unit 1 one by one to be measured, after measurement rock core is determined to partly oozing slate ventricle 2 numbers, put into rock core resistivity core holding unit 1, advance electrode 23 and rock core to be coupled to the coupling pressure of setting, rock core resistivity data imports computing machine 4 into by digital electric bridge 67, monitored the variation of rock core resistivity by computing machine 4, until rock core resistance value rate stablize constant after, gathered by computing machine 4, process, then, multiple saturated rock cores are oozed to slate ventricle 2 according to rock core numbering and semi-permeable plate 38 half and number one by one corresponding input computer 4 and pack semi-permeable plate 38 half into and ooze slate ventricle 2, according to measure rock core physical property characteristic by ooze pressure regulator valve 11 and height oozes pressure regulator valve 12 independent regulation displacement pressure separately, open liquid feed valve, from motion tracking liquid level, import liquid level into computing machine 4 by liquid level sensor, when liquid trap 55 liquid levels are when constant, computing machine 4 gathers data now, obtains rock core capillary pressure, saturation degree.The rock core of determining capillary pressure, saturation degree is oozed to slate ventricle 2 from semi-permeable plate 38 half to be taken out, determine and partly ooze after slate ventricle 2 numberings, put into rock core resistivity core holding unit 1, advance electrode 23 and rock core to be coupled to the coupling pressure of setting, rock core resistivity data imports computing machine 4 into by digital electric bridge 67, monitored the variation of rock core resistivity by computing machine 4, until rock core resistance value rate stablize constant after, gather, process by computing machine 4.Oozing slate ventricle 2 according to rock core numbering and semi-permeable plate 38 half numbers one to one rock core and packs semi-permeable plate 38 half into and ooze slate ventricle 2.By in ooze pressure regulator valve 11 and height and ooze pressure regulator valve 12 and increase adjusting displacement pressure, open liquid feed valve, liquid level sensor is from motion tracking liquid level, import liquid level into computing machine 4, when liquid trap 55 liquid levels are when constant, computing machine 4 gathers data now, obtains rock core capillary pressure, saturation degree; The rock core of determining capillary pressure, saturation degree is oozed to slate ventricle 2 from semi-permeable plate 38 half to be taken out, determine and partly ooze after slate ventricle 2 numberings, put into rock core resistivity core holding unit 1, advance electrode 23 and rock core to be coupled to the coupling pressure of setting, rock core resistivity data imports computing machine 4 into by digital electric bridge 67, monitored the variation of rock core resistivity by computing machine 4, until rock core resistance value rate stablize constant after, gather, process by computing machine 4.Oozing slate ventricle 2 according to rock core numbering and semi-permeable plate 38 half numbers one to one the heart and packs semi-permeable plate 38 half into and ooze slate ventricle 2.By in ooze pressure regulator valve 11 and height and ooze pressure regulator valve 12 and increase adjusting displacement pressure, repeat above operation, regulate after displacement pressure until increase, rock core is water outlet no longer, this measures end.
Claims (8)
1. a semi-transparent partition rock core capillary pressure resistivity test device, is characterized in that comprising instrument stand, core holding unit, partly oozes slate ventricle, liquid metering device, Regulation Control device, display device, pressure regulation drive unit and computing machine, instrument stand comprises frame, transverse frame plate, workbench and articles holding table, the upper end of frame is fixed with transverse frame plate, in the frame of transverse frame plate below, there is workbench, in the frame of workbench forward lower part, there is articles holding table, middle part, transverse frame plate lower end is installed with the core holding unit that can measure rock core columnar resistance rate, on workbench, be installed be no less than one can measure rock core post capillary pressure partly ooze slate ventricle, in the frame of workbench bottom, be provided with and can measure the corresponding liquid metering device of slate heart laboratory core post liquid outlet quantity that partly oozes, the holding chamber that can keep in rock core post is installed on articles holding table, articles holding table front portion is provided with display device, pressure regulation drive unit is installed in the frame of articles holding table bottom, articles holding table right part is provided with and can gathers and process capillary pressure signal, the computing machine of resistivity signal and liquid outlet quantity signal, wherein:
During Regulation Control device comprises, ooze pressure regulator valve, height oozes pressure regulator valve, gas control pressure regulator valve and gas drive pressure regulator valve, the frame front of workbench below is fixed with guidance panel, the left part of upper guidance panel be provided with can independently control partly ooze the work of slate ventricle in ooze pressure regulator valve, the right part of upper guidance panel is provided with the independent height that partly oozes the work of slate ventricle of controlling and oozes pressure regulator valve, the frame front of articles holding table below is fixed with lower guidance panel, and the middle part of lower guidance panel is provided with gas control pressure regulator valve and the gas drive pressure regulator valve that can control respectively core holding unit; Pressure regulation drive unit comprises quiet air lift pump, gas boosting pump and control box, and quiet air lift pump, gas boosting pump and control box are fixedly mounted on respectively in the frame of articles holding table below;
Core holding unit comprises grip slipper, gripper cylinder, connecting cylinder, clamping cylinder piston rod, advances electrode, insulating boot, plunger electrode, hydraulic pressure chamber, hydraulic pressure transducer, presses down gas admittance valve, presses down atmospheric valve, is retracted into air valve and retraction atmospheric valve; The upper end of grip slipper is fixedly mounted on middle part, transverse frame plate lower end, the lower end of grip slipper is installed with gripper cylinder, the clamping cylinder piston rod that can stretch out is downwards arranged at the bottom of gripper cylinder, the cylinder body lower end of gripper cylinder is fixedly connected with insulating boot by connecting cylinder, there is placed cavity the inside of insulating boot, the lower end of clamping cylinder piston rod extends placed cavity inside and is installed with propelling electrode, and there is the inner placement mouth being connected with placed cavity the front portion of insulating boot, and the bottom of placed cavity is provided with plunger electrode; The bottom of insulating boot is installed with hydraulic pressure chamber, there is hydraulic cavities the inside of hydraulic pressure chamber, there is pressure measurement plunger the lower end of plunger electrode, and pressure measurement plunger is positioned at hydraulic cavities inside and can moves up and down, and the outer lower portion of hydraulic pressure chamber is provided with the hydraulic pressure transducer that can detect hydraulic cavities internal liquid pressure; The upper right of gripper cylinder and left side are separately installed with and press down gas admittance valve and press down atmospheric valve, and the right side, bottom of gripper cylinder and left side are separately installed with and are retracted into air valve and retraction atmospheric valve.
2. semi-transparent partition rock core capillary pressure resistivity test device according to claim 1, is characterized in that partly oozing slate ventricle and comprises tank at the bottom of rock core, advances seal closure, rock core pressure cap, sealing socket, dividing plate ring set, semi-permeable plate, filtration cushion and pressure-bearing pad, at the bottom of rock core, the outer middle side part of tank has draw-in groove and is fixedly mounted on workbench by draw-in groove, at the bottom of rock core, there is tank chamber, the end inside of tank, the end upper inside wall in tank chamber has annular groove, at the bottom of rock core, on the upper outside face of tank, there is end tank external thread and be installed with rock core pressure cap, at the bottom of rock core, air admission hole inner and annular groove intracavity inter-connection is arranged at the left outer top of tank, at the bottom of rock core, the outside right lower quadrant of tank has the inner inlet opening being connected with tank chamber, the end, at the bottom of rock core, the inner fluid hole being connected with tank chamber, the end is arranged at the left outer bottom of tank, the taphole that at the bottom of rock core, middle part, the bottom surface of tank has Yu Diguan chamber, upper end to be connected, the lower end of sealing socket is sitting on the bottom surface of annular groove, there is the bracket that can place rock core post the inside of sealing socket, dividing plate ring set is positioned at the tank chamber, the end of sealing socket bottom, in the inner chamber of dividing plate ring set, be from top to bottom fixed with successively semi-permeable plate, filter cushion and pressure-bearing pad, advance seal closure bottom to be sleeved in the inner chamber of annular groove and be fixed at the bottom of rock core on tank by rock core pressure cap, advance the inside of seal closure to have the container cavity that can hold rock core post, the roof middle part of container cavity is installed with lower end and rock core post can be pressed on to the spring on bracket, advance the outer lower portion of seal closure to have propelling cover seal groove and the propelling cover O-ring seal that can make to advance maintenance sealing between seal closure lateral surface and annular groove sidewall is installed, on the lateral surface of sealing socket, there is envelope seat seal groove and be provided with and can make to advance the envelope seat O-ring seal that keeps sealing between sealing socket lateral surface and annular groove sidewall, on the upper outside face of dividing plate ring set, there is diaphragm housing ring water jacket and the diaphragm housing ring exterior seal ring that can make to keep between dividing plate ring set outside and the end tank cavity wall sealing is installed, in the upper inside wall of dividing plate ring set, there is diaphragm housing ring inside groove and the diaphragm housing ring inner seal ring that can make to keep between dividing plate ring set inwall and semi-permeable plate lateral surface sealing is installed.
3. semi-transparent partition rock core capillary pressure resistivity test device according to claim 2, is characterized in that liquid metering device comprises liquid trap, surveys liquid air release, surveys liquid liquid feed valve, surveys liquid sensor and surveys liquid bleeder valve; Liquid trap is fixedly mounted in the frame of workbench bottom, the upper end of liquid trap is installed with surveys liquid air release, the left outer bottom of liquid trap is installed with surveys liquid liquid feed valve, the outside right lower quadrant of liquid trap is installed with surveys liquid sensor, and the lower end of liquid trap is installed with surveys liquid bleeder valve.
4. according to the semi-transparent partition rock core capillary pressure resistivity test device described in claim 1 or 2 or 3, it is characterized in that workbench bottom is provided with thermostat and constant-moisture device; Thermostat comprises electric heater, and electric heater is fixedly mounted in the frame of bottom, workbench left side; Constant-moisture device comprises humidification nozzle and gas humidifier, humidification nozzle is fixedly mounted in the frame of bottom, workbench left side, gas humidification device is fixedly mounted in the frame of articles holding table below, the outlet of gas humidification device is connected with the air intake opening of humidification nozzle by tracheae, and the gas outlet of humidification nozzle is positioned on workbench upper surface.
5. semi-transparent partition rock core capillary pressure resistivity test device according to claim 4, is characterized in that display device comprises temp control indicator, wet control display, gas control pressure display unit and gas drive pressure display unit; Left part top and left part that temp control indicator, wet control display are fixedly mounted on respectively lower guidance panel are following, and it is following that gas control pressure display unit and gas drive pressure display unit are fixedly mounted on respectively right part top and the right part of lower guidance panel.
6. semi-transparent partition rock core capillary pressure resistivity test device according to claim 5, it is characterized in that lower guidance panel middle part is installed with digital electric bridge, advance electrode and plunger electrode to be electrically connected by the signal input terminal of electrode cable and digital electric bridge respectively, the signal input terminal of computing machine and the lead-out terminal of digital electric bridge are electrically connected.
7. according to the semi-transparent partition rock core capillary pressure resistivity test device described in claim 1 or 2 or 3, it is characterized in that transverse frame plate bottom is provided with scavenger fan.
8. semi-transparent partition rock core capillary pressure resistivity test device according to claim 6, is characterized in that transverse frame plate bottom is provided with scavenger fan.
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| CN201110327643.3A CN102519831B (en) | 2011-10-26 | 2011-10-26 | Semi-permeable partition rock core capillary pressure and resistivity measuring device |
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| CN103293382B (en) * | 2013-05-31 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Drive liquid fluid electrode |
| CN106324214A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Major-diameter core capillary pressure curve and bound water saturation measuring apparatus |
| CN105606787B (en) * | 2015-12-31 | 2018-01-05 | 中国石油天然气股份有限公司 | Rock core capillary pressure curve test device and method |
| CN108414307B (en) * | 2018-01-30 | 2020-07-14 | 成都理工大学 | Sand filling model pressing and in-situ capillary pressure curve testing device |
| CN108827853B (en) * | 2018-05-22 | 2024-02-06 | 西南石油大学 | Nuclear magnetic resonance-based tight reservoir rock electric measurement device and measurement method |
| CN108508274B (en) | 2018-06-05 | 2020-10-09 | 中国石油天然气股份有限公司 | Resistivity measurement method, device and system |
| CN109667575B (en) * | 2018-10-24 | 2022-04-29 | 西南石油大学 | Probe method well pattern model water drive effect measuring device |
| CN113029898B (en) * | 2021-02-22 | 2022-04-15 | 西南石油大学 | Device and method for testing dynamic flow conductivity of crack and gas supply capacity of bedrock |
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