CN101819173B - Device for measuring polarizability of rocks - Google Patents
Device for measuring polarizability of rocks Download PDFInfo
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- CN101819173B CN101819173B CN2010101726008A CN201010172600A CN101819173B CN 101819173 B CN101819173 B CN 101819173B CN 2010101726008 A CN2010101726008 A CN 2010101726008A CN 201010172600 A CN201010172600 A CN 201010172600A CN 101819173 B CN101819173 B CN 101819173B
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Abstract
A device for measuring polarizability of rocks is applied to the field of measurement of rocks in petroleum geology and is used in the laboratories under normal temperature. The device is characterized in that the whole device is mainly composed of a core holder, a solution cycling system and a measurement panel, wherein the core holder is of clip structure; the solution cycling system is reasonable in structure; water nozzles of measuring chambers of the solution cycling system are provided with valves; the measuring system dispenses with external standard modules or reference modules while carrying out zero graduation; and the measuring process is controlled by the computer. The invention has the following effects: the invention provides a clip structured core holder which is quite convenient to assemble and disassemble for measuring the polarizability of rocks in the laboratories, the solution cycling system ensuring the measuring result of the polarizability of rocks to be slightly affected by external polarization potential and the device panel which is reasonable in structure and convenient to operate.
Description
Technical field
The present invention relates to oil geology rock measurement mechanism technical field; Relate in particular to rock electrochemical parameter detection technique field; Be a kind of device that is used under normal temperature condition, measuring in the laboratory polarizability of rocks, comprise core holding unit, solution recycle system and measurement panel.
Background technology
The polarizability of ore rock is than not containing the much bigger of ore deposit.In the identical similar ore rock of structure construction, along with the increase of conductive mineral volume content, polarizability begins obvious increase.Polarizability receives the influence of rock texture to a great extent.In addition, polarizability is also relevant with the factors such as concentration of contained local water in the blowhole.
The patent of relevant polarizability of rocks has: Chinese patent publication number: CN101000379A; A kind of method and device that carries out the high density detecting polarizability with metal electrode is provided; To charge with the measurement of polarization rate use same set of metal electrode; Through pushing away spontaneous potential, measure polarizability accurately.Adopted holding circuit and summing circuit in the device,, controlled the step of each polarizability through computer runs programs.Chinese patent publication number: CN101520517A provides a kind of geophysics oil-gas exploration method that can accurately estimate petroclastic rock basin oily target based on resistivity and effect of induced polarization, comprises the target area is carried out data acquisition; Image data is carried out time domain, frequency field processing; Obtain APPARENT RESISTIVITY and phase curve, draw the polarization effect plane and scheme unusually, compare with the abnormal patterns of hydrocarbon-bearing pool; Confirm to contain oil trap, confirm the location boundary of hydrocarbon-bearing pool.In addition, also have relevant polarizability of rocks and research and relevant report the distribution of mineral deposits relation.
At present, also do not search the measurement mechanism of measuring polarizability of rocks in the relevant laboratory under the normal temperature condition.But the core holding unit of using on the measurement mechanism has relevant disclosure, like Chinese patent publication number: CN2556632, a kind of " circumferential sealing core holder " is provided; Chinese patent publication number: CN2932388 provides a kind of " slip-type superhigh temperature core holding unit ".Both rock core sleeve two ends all connect with helicitic texture with pressure cap, its complex operation, and the former is applied to the measurement of laboratory rock permeability, and the latter is applied on the indoor thermal recovery analogue experiment installation of petroleum industry.
Summary of the invention
The objective of the invention is: a kind of device for measuring polarizability of rocks is provided; Provide a cover to load and unload the core holding unit of cassette structure easily; Provide a cover to make the polarizability of rocks measurement result receive external polarized potential to influence little solution recycle system; And the device panel of operating aspect rational in infrastructure, realize the measurement of laboratory polarizability of rocks.
The technical scheme that the present invention adopts is: device for measuring polarizability of rocks, mainly form by core holding unit, solution recycle system and measurement panel three parts, and it is characterized in that:
Core holding unit mainly is made up of left conduit, left end cap, left clip, left briquetting, core chamber, rock core metallic sheath, rock core rubber sleeve, right briquetting, right clip, right end cap, setting nut, right conduit and core chamber's support.Core chamber is the cylinder shape, and the core chamber two ends are the truncated cone fixed block of oriented outer lug respectively.Core chamber is embedded with combination rock core cover.The structure of combination rock core cover is on the outer wall of cylindrical shape rock core rubber sleeve, to be inlaid with rock core metallic sheath cylindraceous, is evenly distributed with the hole on the rock core metal jacket wall.The internal diameter of rock core rubber sleeve is between 20～40mm.In core chamber and at the left end that makes up the rock core cover, annular left briquetting is arranged, in the outer end of left briquetting left end cap is arranged, the right-hand member of left end cap inserts in the core chamber and compresses left briquetting.The truncated cone fixed block of oriented outer lug on the outer wall of left side briquetting.The fixed block of truncated cone fixed block and core chamber's left end of left side briquetting is relative, and on the fixed block of the fixed block of left briquetting and core chamber's left end, blocking has left clip.Can make the right-hand member of left end cap compress left briquetting behind the clip chucking of a left side.In left end cap, left briquetting and rock core rubber sleeve center pit, be inserted with cylindrical shape left side conduit.The left end cap inwall has interior step, and left conduit outer wall has outer step, and step blocks the outer step of left conduit in the left end cap, and left conduit can not be pulled out.In core chamber and at the right-hand member that makes up the rock core cover, annular right briquetting is arranged, in the outer end of right briquetting right end cap is arranged, the left end of right end cap inserts in the core chamber and compresses right briquetting.The truncated cone fixed block of oriented outer lug on the outer wall of right briquetting.The truncated cone fixed block of right briquetting is relative with the fixed block of core chamber's right-hand member, and on the fixed block of the fixed block of right briquetting and core chamber's right-hand member, blocking has right clip.Can make the left end of right end cap compress right briquetting behind the right clip chucking.In right end cap, right briquetting and rock core rubber sleeve center pit, be inserted with the right conduit of cylindrical shape.The right-hand member of right end cap has and has externally threaded pipe, on the pipe of right end cap right-hand member, is connected with tapped cylindrical shape setting nut.Right-hand member inwall at setting nut has interior step, and right conduit outer wall has outer step, and step blocks the outer step of right conduit in the setting nut, and right conduit can not be pulled out.Bottom at left clip and right clip is fixed with core chamber's support through rotating shaft.Be screwed between core chamber's support and the rack.
The outer wall of core chamber has an aperture, can add confined pressure for the rock core of testing through the aperture of core chamber.
Generally speaking, the rock core rubber sleeve can have two kinds of specifications, and promptly rock core rubber sleeve internal diameter is 25mm or 38mm.
Left side clip and right clip mainly are made up of left semicircle ring, bearing pin, screw rod, wing nut, right semi-circle ring and rotating shaft.Left semicircle ring and right semi-circle ring are relatively formed an annulus, are connected through rotating shaft at an end of left semicircle ring and right semi-circle ring, left semicircle ring and right semi-circle ring can be relatively rotated open.The other end at the left semicircle ring is fixed with bearing pin, and an end and the bearing pin of screw rod are fixed, and screw rod passes the hole, the other end of right semi-circle ring, on screw rod, is connected with wing nut.The rotation wing nut can make left semicircle ring and right semi-circle ring open relatively or close up.Inwall at left semicircle ring and right semi-circle ring has the taper inside groove, and the taper inside groove can be stuck on the fixed block of left briquetting and core chamber's left end, also can be stuck on the fixed block of right briquetting and core chamber's right-hand member.
Solution system mainly is made up of power supply chamber, a left side, right power supply chamber, left measuring chamber, right measuring chamber, left reservoir, right reservoir, water nozzle valve, left pump and right pump.Left end of conduit at core holding unit is connected with left measuring chamber, the inner UNICOM of left conduit and left measuring chamber.Left side measuring chamber comprises column measuring chamber main body, has an electrode jack at the top of measuring chamber main body, and fixture splice is arranged on the electrode jack, and measuring chamber block and O-ring seal are arranged on fixture splice.In electrode jack, insert left potential electrode, the other end of left potential electrode is inserted on the left potential electrode socket.On the wall of left measuring chamber, be fixed with three tubulose water nozzles; One of them water nozzle is through the bottom of power supply chamber, a pipe connection left side, and power supply chamber, a left side is a tubular, the ability holding liquid.Be fixed with the water nozzle valve respectively on two of left measuring chamber water nozzles in addition, a water nozzle is through managing the liquid outlet that connects left pump, and another water nozzle is connected to left reservoir through pipe.The inlet of left side pump has pipeline to be connected to left reservoir.
Right end of conduit at core holding unit is connected with right measuring chamber, and the structure of right measuring chamber is identical with the structure of left measuring chamber.In the electrode jack of right measuring chamber, insert right potential electrode, the other end of right potential electrode is inserted on the right potential electrode socket.On the wall of right measuring chamber, be fixed with three tubulose water nozzles; One of them water nozzle is through the bottom of the right power supply of pipe connection chamber, and right power supply chamber is a tubular, the ability holding liquid.Be fixed with the water nozzle valve respectively on two of right measuring chamber water nozzles in addition, can regulate water velocity according to the needs control water level of measuring.The water nozzle that is fixed with the water nozzle valve on top is through the liquid outlet of the right pump of pipe connection, and the water nozzle that is fixed with the water nozzle valve of bottom is connected to right reservoir through pipe, and the inlet of right pump has pipeline to be connected to right reservoir.
One end of left side transmitting electrode and right transmitting electrode is inserted into respectively among the solution of power supply chamber, a left side and right power supply chamber.The other end of left side transmitting electrode is connected to the left transmitting electrode socket of rack; The other end of right transmitting electrode is connected to the right transmitting electrode socket of rack.The structure of left side transmitting electrode and right transmitting electrode: an end is connected lead and links to each other with the transmitting electrode socket, and the other end is put into the solution of power supply chamber, and the centre is an electrode body.
Left side potential electrode and right potential electrode are silver-silver chloride (Ag-AgCl) electrode or other current electrode.The structure of left side potential electrode and right potential electrode, an end is that lead links to each other with the potential electrode socket, and the other end is an electrode probe, inserts in the solution in the measuring chamber, and the centre is an electrode body.
The pipe that links to each other with right measuring chamber with left measuring chamber is a silicon rubber hose.
Measure panel and comprise rack, right reservoir, right pump, left pump and left reservoir are in the bottom of rack.Core chamber's support is fixed on the table top of rack, horizontal fixed core holding unit on core chamber's support.Power supply chamber, a left side and right power supply chamber are fixed on the both sides of rack riser, and the bottom level of power supply chamber, a left side and right power supply chamber is higher than core holding unit.On the riser of rack, be fixed with tensimeter and pressure valve, tensimeter is connected with nitrogen cylinder with pressure valve, and has pipeline to be connected to the aperture that core chamber's outer wall is opened.The pressure of nitrogen cylinder provides confined pressure through the aperture of core chamber for the rock core of testing.
The use of summary device for measuring polarizability of rocks helps to understand the present invention.Consult Fig. 1.Core holding unit, solution recycle system and measurement panel three parts; After connecting according to the connected mode of describing in the summary of the invention, with left clip 5 with left end cap 24 and core chamber's 6 lockings, earlier with setting nut 10 along counterclockwise regulating; Reserve enough spaces to rock core; Embed rock core rubber sleeve 26 in the rock core metallic sheaths 27, with the rock core rock core rubber sleeve 26 of packing into, then the rock core metallic sheath is pushed core chamber 6 together with rock core again; With right end cap 30 and core chamber's 6 chuckings, the end face of turn clockwise setting nut 10 to left conduit 21, right conduit 13 touches till the rock core both ends of the surface with right clip 8.Left transmitting electrode and left transmitting electrode socket 3 are connected, and right transmitting electrode and right transmitting electrode socket 11 connect; Left potential electrode and left potential electrode socket 2 are connected, and right potential electrode and right potential electrode socket 9 connect.Add about the about 1.5MPa of confined pressure.Let left pump 18 be extracted into the solution of 20 li of left reservoirs the appropriate location of left measuring chamber 22, power supply chamber 1, a left side; Right pump 17 is extracted into the solution of 16 li of right reservoirs the appropriate location of right measuring chamber 14, the right chamber 12 that supplies power.Left side transmitting electrode socket 3, right transmitting electrode socket 11 connect the output signal of computing machine; Left side potential electrode socket 2, right potential electrode socket 9 connect computer input signal.So far, computing machine can begin control survey.Measurement finishes, and earlier the left measuring chamber 22 and the solution of power supply chamber 1, a left side is put back to 20 li of left reservoirs respectively, and right measuring chamber 14 is put back to 16 li of right reservoirs with the solution of right power supply chamber 12, unloads confined pressure again, opens right clip 8, and removal of core has promptly been accomplished this measuring process.
Device for measuring polarizability of rocks has the important feature of the following aspects:
1) the rock clamper can be placed all salable and problem of the gas leakage of can not leaking of the random length rock core of 2～80mm, and the loading, unloading only with hand is tightened gently, can reach sealing, and is simple to operation.In addition, if the rock core length limited can produce inconvenience.Such as: some rock core shale index is heavier; After the salt water saturation, loose, the two ends distortion even collapse of becoming easily needs cut away the part of being out of shape this moment; After so just might causing rock core repeatedly to measure repeatedly cutting, the shorter and shorter and phenomenon that can't measure of rock core.It is then adjustable between 2～80mm that this device holds the length of rock core, can satisfy same block of rock core and take multiple measurements the demand that also still can measure after the repeatedly cutting.
2) the polarizability SYSTEMATIC ERRORS OF INSTRUMENTATION SYSTEMS is little.Whole measuring system before carrying out the rock core measurement, must be carried out system compensation at every turn---and be zero graduation.If when carrying out system compensation, need by external standard module or referrer module, bring certain systematic error unavoidably like this.This invention makes measuring system when carrying out system compensation, does not need can carry out zero graduation by any external standard module (or referrer module), and systematic error is very little.
3) solution recycle system control water level as required, and can controlled water flow speed.
Beneficial effect of the present invention: device for measuring polarizability of rocks is that the measurement of laboratory polarizability of rocks provides the cover loading, unloading core holding unit of cassette structure very easily; Make the polarizability of rocks measurement result receive external polarized potential to influence little solution recycle system; And the device panel of operating aspect rational in infrastructure, a whole set of measurement mechanism has reached following effect: consult Fig. 2.
A) loading and unloading of the core holding unit of device for measuring polarizability of rocks are very convenient.When rock core metallic sheath 27 core chamber 6 of packing into, core chamber's 6 left ends are stuck core chamber 6 through left clip 5 and lock with left end cap 24; Right-hand member is stuck core chamber 6 through right clip 8 and locks with right end cap 30, till can not readvancing along CW setting nut 10 to right conduit 13, core holding unit has just installed.Being connected between left end cap 24 and the core chamber 6 is relatively-stationary, if the rock core of continuous coverage specification of the same race, when the loading, unloading rock core; Left side clip 5 needn't be opened; Only need open right clip 8, right end cap 30 has promptly just broken off with core chamber 6 together with right conduit 13, and rock core metallic sheath 27 only with hand one pull out or tilt core chamber 6 slightly to the lower right outward gently; The rock core cover can come out, and loads and unloads very convenient, light.
Left side clip 5 is ties that core chamber 6 is connected with solution recycle system with right clip 8.When wing nut 35 loose the arriving to a certain degree of clip, upwards removed screw rod 34, the top of left semicircle ring 32 and right semi-circle ring 36 just separates automatically, and the end cap and the conduit at core chamber 6 and two ends break off immediately; When putting into the terraced steps at core chamber 6 two ends in the inside groove of clip with left and right supravasal left and right end cap respectively; When tightening wing nut 35; Come with the sealing O type circle 29 on the right briquetting 28 is promptly isolated fully through left briquetting 25 in the gas circuit of core chamber 6 and the water route of solution recycle system, the sealing of system is fairly good.
B) the metal setting nut 10 on the right conduit 13 is for different in size regulating action of rock core.Only with hand turns setting nut 10 gently along CW, and right conduit 13 just moves towards core chamber's 6 directions, touches the rock core end face up to the end face of right conduit 13, and setting nut is just twisted motionless, and this moment, rock core promptly was in place.When setting nut 10 when counterclockwise being transferred to the limit, core chamber can hold the long rock core of 80mm; When setting nut 10 when CW is transferred to the limit; The length that core chamber can hold rock core is 2mm, the end face butt joint of promptly left conduit 21 and right conduit 13, at this moment; System can carry out system compensation---zero graduation without any need for standard module or referrer module; So both reduced operation link, reduced systematic error again, and also satisfied same block of rock core simultaneously and taken multiple measurements the demand that still can measure after the repeatedly cutting.
C) added two-way valve on the water nozzle of the measuring chamber of solution recycle system,, can select different water velocities as required, very neatly control water level when changeover valve arrives diverse location.Make all parts that touch solution with nonmetallic materials, reached like this and make solution recycle system receive external polarized potential to disturb little effect.
When carrying out device for measuring polarizability of rocks system compensation or zero graduation, without any need for standard model or reference sample.
Description of drawings
Fig. 1 is device for measuring polarizability of rocks one-piece construction figure.
Fig. 2 is a core holding unit structural profile synoptic diagram.
Fig. 3 is the yoke configurations synoptic diagram.
Fig. 4 is right measuring chamber 14 and left measuring chamber rock 22 structural representations.
Fig. 5 is the left view of Fig. 1.
Among the figure, 1. left side power supply chamber, 2. left potential electrode socket, 3. left transmitting electrode socket, 4. pressure valve, 5. left clip, 6. core chamber; 7. tensimeter, 8. right clip, 9. right potential electrode socket, 10. setting nut, 11. right transmitting electrode sockets, right power supply chambers 12., 13. right conduits; 14. right measuring chamber, 15. water nozzle valves, 16. right reservoirs, 17. right pumps, 18. left pumps, 19. core chamber's supports, 20. left reservoirs; 21. left conduit, 22. left measuring chambers, 23. racks, 24. left end caps, 25. left briquettings, 26. rock core rubber sleeves, 27. rock core metallic sheaths; 28. right briquetting, 29. sealing O type circles, 30. right end caps, 31. rotating shafts, 32. left semicircle rings, 33. bearing pins, 34. screw rods; 35. wing nut, 36. right semi-circle rings, 37. water nozzles, 38. measuring chambers block, 39. O-ring seals, 40. measuring chamber main bodys, 44. electrode jacks.
Embodiment
Embodiment 1: with a device for measuring polarizability of rocks is example, and the present invention is done further explain.
Consult Fig. 1.Device for measuring polarizability of rocks mainly is made up of core holding unit, solution recycle system and measurement panel three parts.
Consult Fig. 2.Core holding unit mainly is made up of left conduit 21, left end cap 24, left clip 5, left briquetting 25, core chamber 6, rock core metallic sheath 27, rock core rubber sleeve 26, right briquetting 28, right clip 8, right end cap 30, setting nut 10, right conduit 13 and core chamber's support 19.Core chamber 6 is the cylinder shape, and core chamber 6 two ends are the truncated cone fixed block of oriented outer lug respectively.Core chamber 6 is embedded with combination rock core cover.The structure of combination rock core cover is on the outer wall of cylindrical shape rock core rubber sleeve 26, to be inlaid with rock core metallic sheath 27 cylindraceous, is evenly distributed with aperture on rock core metallic sheath 27 walls.The internal diameter of rock core rubber sleeve 26 is 25mm.It is the rock core of 25mm that a diameter is arranged in rock core rubber sleeve 26.In core chamber 6 and at the left end that makes up the rock core cover, annular left briquetting 25 is arranged, in the outer end of left briquetting 25 left end cap 24 is arranged, the right-hand member of left end cap 24 snaps in the cone tank of left clip 5 with the left end of core chamber 6, and compresses left briquetting 25.The truncated cone fixed block of oriented outer lug on the outer wall of left side briquetting 25.The truncated cone fixed block of left side briquetting 25 is relative with the fixed block of core chamber's 6 left ends.In left end cap 24, left briquetting 25 and rock core rubber sleeve 26 center pits, be inserted with cylindrical shape left side conduit 21.Left end cap 24 inwalls have interior step, and left conduit 21 outer walls have outer step, and step blocks left conduit 21 outer steps in the left end cap 24.In core chamber 6 and at the right-hand member that makes up the rock core cover, annular right briquetting 28 is arranged, in the outer end of right briquetting 28 right end cap 30 is arranged, the left end of right end cap 30 snaps in the cone tank of right clip 8 with the right-hand member of core chamber 6, and compresses right briquetting 28.The truncated cone fixed block of oriented outer lug on the outer wall of right briquetting 28.The truncated cone fixed block of right briquetting 28 is relative with the fixed block of core chamber's 6 right-hand members.In right end cap 30, right briquetting 28 and rock core rubber sleeve 26 center pits, be inserted with the right conduit 13 of cylindrical shape.The right-hand member of right end cap 30 has and has externally threaded pipe, on the pipe of right end cap 30 right-hand members, is connected with tapped cylindrical shape setting nut 10.Right-hand member inwall at setting nut 10 has interior step, and right conduit 13 outer walls have outer step, and step blocks right conduit 13 outer steps in the setting nut 10.Bottom at left clip 5 and right clip 8 is fixed with core chamber's support 19 through rotating shaft 31.Be screwed between core chamber's support 19 and the rack 23.
Have an aperture on the wall of core chamber 6.Be fixed with the pipeline jointing on the aperture, and be connected with nitrogen cylinder with pressure valve 4 through tensimeter 7.
Consult Fig. 3.Left side clip 5 mainly is made up of left semicircle ring 32, bearing pin 33, screw rod 34, wing nut 35, right semi-circle ring 36 and rotating shaft 31 with right clip 8.Left semicircle ring 32 is formed an annulus relatively with right semi-circle ring 36, is connected through rotating shaft 31 at an end of left semicircle ring 32 and right semi-circle ring 36.The other end at left semicircle ring 32 is fixed with bearing pin 33, and an end of screw rod 34 and bearing pin 33 are fixing, and screw rod 34 passes the hole, the other end of right semi-circle ring 36, on screw rod 34, is connected with a wing nut 35.At the inwall of left semicircle ring 32 and right semi-circle ring 36 cross section being arranged is the inside groove of taper.
Consult Fig. 1.Solution system mainly is made up of power supply chamber 1, a left side, right power supply chamber 12, left measuring chamber 22, right measuring chamber 14, left reservoir 20, right reservoir 16, water nozzle valve 15, left pump 18 and right pump 17.Left conduit 21 ends at core holding unit are connected with left measuring chamber 22, left conduit 21 and left measuring chamber 22 inner UNICOMs.Consult Fig. 4.Left side measuring chamber 22 comprises column measuring chamber main body 40, has an electrode jack 44 at the top of measuring chamber main body 40, on the electrode jack 44 fixture splice is arranged, and measuring chamber block 38 and O-ring seal 39 are arranged on fixture splice.In electrode jack 44, insert left potential electrode, the other end of left potential electrode is inserted on the left potential electrode socket 2.On the wall of left measuring chamber 22, be fixed with three tubulose water nozzles 37; One of them water nozzle 37 is through the bottom of power supply chamber 1, a pipe connection left side, and power supply chamber 1, a left side is diameter 120mm, highly the cylinder of 220mm.Be fixed with water nozzle valve 15 respectively on two water nozzles 37 of left in addition measuring chamber 22; Water nozzle 37 top and that be fixed with water nozzle valve 15 connects the liquid outlet of left pump 18 through pipe; The bottom and water nozzle 37 that be fixed with water nozzle valve 15 is connected to left reservoir 20 through pipe, and the inlet of left pump 18 has pipeline to be connected to left reservoir 20.
Consult Fig. 1.Right conduit 13 ends at core holding unit are connected with right measuring chamber 14.Consult Fig. 4.The structure of right measuring chamber 14 is identical with the structure of left measuring chamber 22.Consult Fig. 1.In the electrode jack 44 of right measuring chamber 14, insert right potential electrode, the other end of right potential electrode is inserted on the right potential electrode socket 9.On the wall of right measuring chamber 14, be fixed with three tubulose water nozzles 37; One of them water nozzle 37 is through the bottom of the right power supply of silicon rubber hose connection chamber 12, and right power supply chamber 12 is identical with left power supply chamber 1 structure.Be fixed with water nozzle valve 15 respectively on two water nozzles 37 of right in addition measuring chamber 14; The water nozzle that is fixed with water nozzle valve 15 37 on top connects the liquid outlet of right pump 17 through silicon rubber hose; The water nozzle that is fixed with water nozzle valve 15 37 of bottom is connected to right reservoir 16 through silicon rubber hose, and the inlet of right pump 17 has the silicon rubber hose line to be connected to right reservoir 16.
One end of left side transmitting electrode and right transmitting electrode is inserted into respectively among the solution of power supply chamber, a left side 1 and right power supply chamber 12.The other end of left side transmitting electrode is connected to the left transmitting electrode socket 3 of rack 23; The other end of right transmitting electrode is connected to the right transmitting electrode socket 11 of rack 23.Left side transmitting electrode and right transmitting electrode are lead electrodes.The structure of left side transmitting electrode and right transmitting electrode is: an end is connected lead and links to each other with the transmitting electrode socket, and the other end is put into the solution of power supply chamber, and the centre is an electrode body.
Left side potential electrode and right potential electrode are silver-silver chloride (Ag-AgCl) electrodes.The structure of left side potential electrode and right potential electrode: an end is that lead links to each other with the potential electrode socket, and the other end is an electrode probe, inserts in the solution in the measuring chamber, and the centre is an electrode body.
Lead electrode or other current electrode or silver-silver chloride (Ag-AgCl) electrode, in market by sale.
Consult Fig. 1.Measure panel and comprise rack 23, right reservoir 16, right pump 17, left pump 18 and left reservoir 20 are in the bottom of rack 23.Core chamber's support 19 is fixed on the table top of rack 23, horizontal fixed core holding unit on core chamber's support 19.Power supply chamber, a left side 1 and right power supply chamber 12 are fixed on the both sides of rack 23 risers, and the bottom level of power supply chamber, a left side 1 and right power supply chamber 12 is higher than the about 15mm of core holding unit center line.On the riser of rack 23, be fixed with tensimeter 7 and pressure valve 4, tensimeter 7 is connected with nitrogen cylinder with pressure valve 4, and is connected to pipe joint fixing on the aperture of opening on core chamber's 6 walls through pipeline, and nitrogen cylinder provides confined pressure for the rock core of test.
Claims (5)
1. one kind is used for the laboratory under normal temperature condition, measures the device for measuring polarizability of rocks of polarizability of rocks, mainly is made up of core holding unit, solution recycle system and measurement panel three parts, it is characterized in that:
Core holding unit mainly is made up of left conduit (21), left end cap (24), left clip (5), left briquetting (25), core chamber (6), rock core metallic sheath (27), rock core rubber sleeve (26), right briquetting (28), right clip (8), right end cap (30), setting nut (10), right conduit (13) and core chamber's support (19); Core chamber (6) is the cylinder shape; Core chamber (6) two ends are the truncated cone fixed block of oriented outer lug respectively; Core chamber (6) is embedded with combination rock core cover; The structure of combination rock core cover is on the outer wall of cylindrical shape rock core rubber sleeve (26), to be inlaid with rock core metallic sheath cylindraceous (27), is evenly distributed with the hole on rock core metallic sheath (27) wall, and the internal diameter of rock core rubber sleeve (26) is between 20～40mm; In core chamber (6) and at the left end that makes up the rock core cover, annular left briquetting (25) is arranged; In the outer end of left briquetting (25) left end cap (24) is arranged; The right-hand member of left end cap (24) inserts in the core chamber (6) and compresses left briquetting (25), the truncated cone fixed block of oriented outer lug on the outer wall of left briquetting (25), and the fixed block of the truncated cone fixed block of left briquetting (25) and core chamber (6) left end is relative; Card has left clip (5) on the fixed block of the fixed block of left briquetting (25) and core chamber (6) left end; Can make the right-hand member of left end cap (24) compress left briquetting (25) behind left side clip (5) chucking, in left end cap (24), left briquetting (25) and rock core rubber sleeve (26) center pit, be inserted with cylindrical shape left side conduit (21), left end cap (24) inwall has interior step; Left side conduit (21) outer wall has outer step; The interior step of left end cap (24) blocks the outer step of left conduit (21), in core chamber (6) and at the right-hand member that makes up the rock core cover, annular right briquetting (28) is arranged, and in the outer end of right briquetting (28) right end cap (30) is arranged; The left end of right end cap (30) inserts in the core chamber (6) and compresses right briquetting (28); The truncated cone fixed block of oriented outer lug on the outer wall of right briquetting (28), the fixed block of the truncated cone fixed block of right briquetting (28) and core chamber (6) right-hand member is relative, and on the fixed block of the fixed block of right briquetting (28) and core chamber (6) right-hand member, blocking has right clip (8); Can make the left end of right end cap (30) compress right briquetting (28) behind right clip (8) chucking; In right end cap (30), right briquetting (28) and rock core rubber sleeve (26) center pit, be inserted with the right conduit (13) of cylindrical shape, the right-hand member of right end cap (30) has and has externally threaded pipe, on the pipe of right end cap (30) right-hand member, is connected with tapped cylindrical shape setting nut (10); Right-hand member inwall at setting nut (10) has interior step; Right conduit (13) outer wall has outer step, and the interior step of setting nut (10) blocks the outer step of right conduit (13), is fixed with core chamber's support (19) in the bottom of left clip (5) and right clip (8) through rotating shaft (31); Be screwed between core chamber's support (19) and the rack (23), the outer wall of core chamber (6) has an aperture;
Left side clip (5) and right clip (8) mainly are made up of left semicircle ring (32), bearing pin (33), screw rod (34), wing nut (35), right semi-circle ring (36) and rotating shaft (31); Left semicircle ring (32) and right semi-circle ring (36) are formed an annulus relatively; End at left semicircle ring (32) and right semi-circle ring (36) is connected through rotating shaft (31); The other end at left semicircle ring (32) is fixed with bearing pin (33), and an end of screw rod (34) and bearing pin (33) are fixing, and screw rod (34) passes the hole, the other end of right semi-circle ring (36); On screw rod (34), be connected with wing nut (35), the taper inside groove arranged at the inwall of left semicircle ring (32) and right semi-circle ring (36);
Solution recycle system mainly is made up of power supply chamber (1), a left side, right power supply chamber (12), left measuring chamber (22), right measuring chamber (14), left reservoir (20), right reservoir (16), water nozzle valve (15), left pump (18) and right pump (17); Left conduit (21) end at core holding unit is connected with left measuring chamber (22); Left side conduit (21) and the inner UNICOM of left measuring chamber (22); Left side measuring chamber (22) comprises column measuring chamber main body (40), has an electrode jack (44) at the top of measuring chamber main body (40), and electrode jack has fixture splice on (44); Measuring chamber block (38) and O-ring seal (39) are arranged on fixture splice; In electrode jack (44), insert left potential electrode, the other end of left potential electrode is inserted on the left potential electrode socket (2), on the wall of left measuring chamber (22), is fixed with three tubulose water nozzles (37); One of them water nozzle (37) connects the bottom of power supply chamber, a left side (1) through pipe; Power supply chamber, a left side (1) is a tubular; Be fixed with water nozzle valve (15) respectively on two water nozzles (37) of left in addition measuring chamber (22); A water nozzle (37) is through the liquid outlet of the pipe left pump of connection (18), and another water nozzle (37) is connected to left reservoir (20) through pipe, and the inlet of left pump (18) has pipeline to be connected to left reservoir (20);
Right conduit (13) end at core holding unit is connected with right measuring chamber (14); The structure of right measuring chamber (14) is identical with the structure of left measuring chamber (22); In the electrode jack (44) of right measuring chamber (14), insert right potential electrode; The other end of right potential electrode is inserted on the right potential electrode socket (9), on the wall of right measuring chamber (14), is fixed with three tubulose water nozzles (37); One of them water nozzle (37) connects the bottom of right power supply chamber (12) through pipe; Right power supply chamber (12) is a tubular; Be fixed with water nozzle valve (15) respectively on two water nozzles (37) of right in addition measuring chamber (14); The water nozzle that is fixed with water nozzle valve (15) (37) on top is through the liquid outlet of the pipe right pump of connection (17), and the water nozzle that is fixed with water nozzle valve (15) (37) of bottom is connected to right reservoir (16) through pipe, and the inlet of right pump (17) has pipeline to be connected to right reservoir (16);
One end of left side transmitting electrode and right transmitting electrode is inserted into respectively among the solution of power supply chamber (1), a left side and right power supply chamber (12), and the other end of left transmitting electrode is connected to the left transmitting electrode socket (3) of rack (23); The other end of right transmitting electrode is connected to the right transmitting electrode socket (11) of rack (23);
Measure panel and comprise rack (23); Right reservoir (16), right pump (17), left pump (18) and left reservoir (20) are in the bottom of rack (23); Core chamber's support (19) is fixed on the table top of rack (23), and core chamber's support (19) is gone up the horizontal fixed core holding unit, and power supply chamber (1), a left side and right power supply chamber (12) are fixed on the both sides of rack (23) riser; And the bottom level of power supply chamber (1), a left side and right power supply chamber (12) is higher than core holding unit; On the riser of rack (23), be fixed with tensimeter (7) and pressure valve (4), tensimeter (7) is connected with nitrogen cylinder with pressure valve (4), and has pipeline to be connected to the aperture that core chamber (6) outer wall is opened.
2. device for measuring polarizability of rocks according to claim 1; It is characterized in that: left transmitting electrode and right transmitting electrode are lead electrodes; One end of left side transmitting electrode and right transmitting electrode is connected lead and links to each other with the transmitting electrode socket, and the other end is put into the solution of power supply chamber, and the centre is an electrode body.
3. device for measuring polarizability of rocks according to claim 1; It is characterized in that: left potential electrode and right potential electrode are silver-silver chloride (Ag-AgCl) electrode or other current electrode; One end of left side potential electrode and right potential electrode is that lead links to each other with the potential electrode socket; The other end is an electrode probe, inserts in the solution in the measuring chamber, and the centre is an electrode body.
4. according to claim 1,2 or 3 described device for measuring polarizability of rocks, it is characterized in that: is silicon rubber hose with left measuring chamber (22) with the pipe that right measuring chamber (14) links to each other.
5. according to claim 1,2 or 3 described device for measuring polarizability of rocks, it is characterized in that: rock core rubber sleeve (26) internal diameter is 25mm or 38mm.
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| CN109406580B (en) * | 2018-12-18 | 2023-09-22 | 新疆工程学院 | Device and method for measuring DC apparent polarizability in experimental tanks and water-bearing rocks |
| CN111912878A (en) * | 2020-08-04 | 2020-11-10 | 中国地质大学（北京） | An experimental measurement device for electrical parameters of seabed polymetallic sulfide rocks |
| CN113050172B (en) * | 2021-03-12 | 2022-05-24 | 中国电建集团贵阳勘测设计研究院有限公司 | Current field test method for slag storage leakage channel |
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