CN202948028U - Core displacement electrical measuring holder special for oil water - Google Patents
Core displacement electrical measuring holder special for oil water Download PDFInfo
- Publication number
- CN202948028U CN202948028U CN 201220591760 CN201220591760U CN202948028U CN 202948028 U CN202948028 U CN 202948028U CN 201220591760 CN201220591760 CN 201220591760 CN 201220591760 U CN201220591760 U CN 201220591760U CN 202948028 U CN202948028 U CN 202948028U
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- installing sleeve
- snap ring
- rod
- electrode device
- rock core
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Abstract
The utility model relates to the technical field of a core displacement electrical measuring clamping device and relates to a core displacement electrical measuring holder special for oil water. The core displacement electrical measuring holder comprises an upper electrode device, a lower electrode device, a lifting power device, an installation sleeve and a stream guide rod, the upper portion of the stream guide rod is sleeved in the installation sleeve, the lower electrode device is fixedly installed at the upper end of the stream guide rod, the upper end of the stream guide rod is located in the installation sleeve, and the lifting power device capable of enabling the lower electrode device and the stream guide rod to vertically move is fixed at the lower end of the stream guide rod. The core displacement electrical measuring holder is reasonable and compact in structure and convenient to use, enables displacement liquid adsorbed on a tube wall of a liquid discharging tube to be discharged from a liquid discharging tube port along airflow effects by blowing air in an airflow tube, reduces measurement errors, can measure resistance through an installation cavity formed by the upper electrode device, the lower electrode device and the installation sleeve, guarantees temperature and humidity of a core, improves electrical measurement accuracy, and enables a whole process to be convenient, reliable and high in work efficiency.
Description
Technical field
The utility model relates to rock core displacement and electrically measures the clamping device technical field, is that the special-purpose rock core displacement of a kind of profit is electrically measured clamper.
Background technology
For a long time, rock core displacement is electrically measured clamping device and is used for measuring local water saturated core resistivity and different saturation rock core resistivity, the rock core saturation degree generally adopts the mode of gas drive water, oily expelling water, water displacing oil to obtain, the liquid that in rock core, displacement goes out flows in measurement instrument by the liquid own wt and measures, limited by liquid saturated in rock core, in general scope between 0.5 gram to 5 gram, thereby measuring accuracy is required to rear two of radix point; And the liquid that goes out for the mode displacement of adopting oily expelling water, water displacing oil is because of when runner pipe circulates, because the runner pipe that uses is longer, while liquid is understood some and is adsorbed on the circulation tube wall, makes the rock core saturation parameters error of measuring larger, and measuring accuracy is low; Affect the validity of measurement data.
Summary of the invention
The utility model provides the special-purpose rock core displacement of a kind of profit electrically to measure clamper, overcome the deficiency of above-mentioned prior art, it can effectively solve rock core displacement when electrically measuring clamping device and for the mode of oily expelling water, water displacing oil, rock core being carried out displacement, rock core saturation parameters error is larger, the problem that precision is low.
The technical solution of the utility model realizes by following measures: the special-purpose rock core displacement of a kind of profit is electrically measured clamper, comprises top electrode device, lower electrode device, lifting power plant, installing sleeve and diversion rod; The top of diversion rod is sleeved in installing sleeve, and the upper end of diversion rod is installed with lower electrode device and is positioned at installing sleeve; The lower end of diversion rod is fixed with the lifting power plant that lower electrode device and diversion rod are moved up and down; Be installed with the top electrode device on the top of installing sleeve; Be formed for the installation cavity of rock core measured resistivity between top electrode device, lower electrode device and installing sleeve; The displacing fluid feed pathway and the displacing fluid liquid outlet channel that communicate with the installation cavity are arranged respectively on top electrode device and lower electrode device, there is the hydrops groove corresponding with displacing fluid liquid outlet channel diversion rod upper end, and the gentle stream pipeline of the fluid pipeline that communicates with hydrops trench bottom and top is arranged respectively on diversion rod; Be installed with respectively drain pipe pipeline joint and air-flow pipe joint and be positioned at diversion rod in the outer end of the gentle stream pipeline of fluid pipeline.
The below is the further optimization and/or improvements to above-mentioned utility model technical scheme:
Above-mentioned lifting power plant can adopt the gas control lifting power plant; The gas control lifting power plant comprises lifting cylinder body and piston rod; Lifting cylinder body is arranged below installing sleeve, and being equipped with in lifting cylinder body can be along the axially movable piston rod of lifting cylinder body, and the upper end of piston rod and the lower end of diversion rod are fixed together.
In above-mentioned installing sleeve, gum cover can be installed, being installed with in the upper end of installing sleeve can be with the fixing upper snap ring in gum cover upper end, and the top electrode device is clamped in installing sleeve by upper snap ring; Being installed with in the lower end of installing sleeve can be with the fixing lower snap ring in gum cover lower end, and lower snap ring is sleeved on diversion rod; Snap ring outward flange and lower snap ring outward flange on the lower outside of the upper outside of upper snap ring and lower snap ring has respectively; Be installed with upper pressing cap in the upper end of installing sleeve and upper snap ring outward flange is held out against upper surface at installing sleeve; Be installed with lower pressing cap in the lower end of installing sleeve and lower snap ring outward flange is held out against lower surface at installing sleeve; Form the inflation blister cavities of sealing between upper snap ring, lower snap ring, gum cover and installing sleeve; The air-filled pore that communicates with inflation blister cavities inside is arranged at the middle part of installing sleeve.
Above-mentioned lower electrode device can comprise bottom electrode insulation rod, lower potential electrode and lower downhole joint; Be installed with lower potential electrode in the upper end of bottom electrode insulation rod; The lower end of bottom electrode insulation rod and the upper end of diversion rod are fixed together and are positioned at installing sleeve; On bottom electrode insulation rod and diversion rod, cable-through hole is arranged, slotted line is installed in cable-through hole, the upper end of slotted line and bottom electrode insulation rod link together; The lower end of slotted line is installed with lower downhole joint and is positioned on diversion rod; The top electrode device comprises top electrode insulation rod, upper potential electrode and upper downhole joint; The lower end of top electrode insulation rod is installed with potential electrode, and the top electrode insulation rod is clamped on the inside upper part of installing sleeve by upper snap ring; Form between lower potential electrode, upper potential electrode and installing sleeve cavity is installed; In the top electrode insulation rod, cable-through hole is arranged, connecting line is installed in cable-through hole, the lower end of connecting line and top electrode insulation rod link together; The upper end of connecting line is installed with downhole joint and is positioned on the top electrode insulation rod.
The upper inner of above-mentioned top electrode insulation rod can have notch cuttype groove wide at the top and narrow at the bottom, in the bottom of notch cuttype groove, internal thread is arranged, and is installed with the displacement joint that is bolt shape by screw thread at the notch cuttype groove; The displacement joint through hole that communicates with the displacing fluid feed pathway is arranged in the displacement joint, the water conservancy diversion displacement interface of taper wide at the top and narrow at the bottom is arranged in the upper end of displacement joint and communicate with displacement joint through hole.
The lower outside of above-mentioned upper snap ring can be taper type wide at the top and narrow at the bottom; The upper outside of lower snap ring is up-narrow and down-wide taper type.
Can be installed with O-ring seal between above-mentioned upper snap ring outward flange lower end and installing sleeve upper end; Be installed with O-ring seal between lower snap ring outward flange upper end and installing sleeve lower end.
Above-mentioned hydrops groove can be cone tank wide at the top and narrow at the bottom.
The utility model reasonable and compact in structure, easy to use; Discharge from the drain pipe pipeline joint with airflow function by being blown into gas in airflow line, making the displacing fluid that is adsorbed on the fluid pipe wall, reduce error in dipping; The installation cavity that while top electrode device, lower electrode device and installing sleeve form, but measured resistivity, the temperature and humidity of assurance rock core improves electrical measuring accuracy; Whole process is convenient and reliable, high efficiency.
Description of drawings
Accompanying drawing 1 is the main TV structure schematic diagram of the utility model most preferred embodiment.
coding in accompanying drawing is respectively: 1 is installing sleeve, 2 is diversion rod, 3 for installing cavity, 4 is the displacing fluid feed pathway, 5 is the displacing fluid liquid outlet channel, 6 is the hydrops groove, 7 is the fluid pipeline, 8 is airflow line, 9 is the drain pipe pipeline joint, 10 is the airflow line interface, 11 is gum cover, 12 is upper snap ring, 13 is lower snap ring, 14 is upper snap ring outward flange, 15 is lower snap ring outward flange, 16 is upper pressing cap, 17 is lower pressing cap, 18 are the inflation blister cavities, 19 is air-filled pore, 20 is lifting cylinder body, 21 is piston rod, 22 is the bottom electrode insulation rod, 23 is lower potential electrode, 24 is lower downhole joint, 25 is slotted line, 26 is the top electrode insulation rod, 27 is upper potential electrode, 28 is upper downhole joint, 29 is connecting line, 30 is water conservancy diversion displacement interface, 31 is O-ring seal, 32 are the displacement joint.
Embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts is all that the Butut mode according to Figure of description 1 is described, as: the position relationship of upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
Below in conjunction with embodiment and accompanying drawing, the utility model is further described:
As shown in Figure 1, the special-purpose rock core displacement of this profit is electrically measured clamper and is comprised top electrode device, lower electrode device, lifting power plant, installing sleeve 1 and diversion rod 2; The top of diversion rod 2 is sleeved in installing sleeve 1, and the upper end of diversion rod 2 is installed with lower electrode device and is positioned at installing sleeve 1; The lower end of diversion rod 2 is fixed with the lifting power plant that lower electrode device and diversion rod 2 are moved up and down; Be installed with the top electrode device on the top of installing sleeve 1; Be formed for the installation cavity 3 of rock core measured resistivity between top electrode device, lower electrode device and installing sleeve 1; The displacing fluid feed pathway 4 and the displacing fluid liquid outlet channel 5 that communicate with installation cavity 3 are arranged respectively on top electrode device and lower electrode device, there is hydrops groove 6 corresponding with displacing fluid liquid outlet channel 5 diversion rod 2 upper ends, and the fluid pipeline 7 and the airflow line 8 that communicate with hydrops groove 6 bottoms and top are arranged respectively on diversion rod 2; Be installed with respectively drain pipe pipeline joint 9 and air-flow pipe joint 10 in the outer end of fluid pipeline 7 and airflow line 8 and be positioned at diversion rod 2.The interior placement rock core of cavity 3 is being installed, and is being moved bottom electrode dress formula by lifting power plant rock core is fixed; Pass through displacing fluid feed pathway 4 to the interior injection displacing fluid of cavity 3 is installed, after the rock core self-priming, remaining displacing fluid is discharged from drain pipe pipeline joint 9 by displacing fluid liquid outlet channel 5, hydrops groove 6 and fluid pipeline 7 again; In this process, displacing fluid can stick on the tube wall of fluid pipeline 7, by be blown into gas in airflow line 8, the displacing fluid on tube wall is discharged from drain pipe pipeline joint 9 with airflow function, reduces error in dipping; Can effectively calculate the liquid outlet quantity of rock core, improve the measuring accuracy of rock core saturation parameters; Cavity 3 is installed is simultaneously made rock core in the process of measured resistivity, can guarantee the temperature and humidity of rock core, make the data of measurement more accurate, precision is high; Top electrode device, rock core and lower electrode device contact successively, thereby reach the purpose of measuring rock core resistivity; Whole process is convenient and reliable, high efficiency.
Can according to actual needs, the special-purpose rock core displacement of above-mentioned profit electrically be measured clamper make further optimization and/or improvements:
As shown in Figure 1, lifting power plant adopts the gas control lifting power plant; The gas control lifting power plant comprises lifting cylinder body 20 and piston rod 21; Lifting cylinder body 20 is arranged below installing sleeve 1, and being equipped with in lifting cylinder body 20 can be along the axially movable piston rod 21 of lifting cylinder body 20, and the lower end of the upper end of piston rod 21 and diversion rod 2 is fixed together.In the interior suction of lifting cylinder body 20 and extraction, realize pumping of piston rod 21 by gas, for lower electrode device and diversion rod 2 provide power.Make the loading and unloading rock core more quick, for lower potential electrode 23, rock core and upper potential electrode 27 provide coupling pressure, reduce the measuring error that contact resistance brings.
As shown in Figure 1, gum cover 11 is installed in installing sleeve 1, being installed with in the upper end of installing sleeve 1 can be with the fixing upper snap ring 12 in gum cover 11 upper ends, and the top electrode device is clamped in installing sleeve 1 by upper snap ring 12; Being installed with in the lower end of installing sleeve 1 can be with the fixing lower snap ring 13 in gum cover 11 lower ends, and lower snap ring 13 is sleeved on diversion rod 2; Snap ring outward flange 14 and lower snap ring outward flange 15 on the lower outside of the upper outside of upper snap ring 12 and lower snap ring 13 has respectively; Be installed with upper pressing cap 16 in the upper end of installing sleeve 1 and upper snap ring outward flange 14 is held out against upper surface at installing sleeve 1; Be installed with lower pressing cap 17 in the lower end of installing sleeve 1 and lower snap ring outward flange 15 is held out against lower surface at installing sleeve 1; Form the inflation blister cavities 18 of sealing between upper snap ring 12, lower snap ring 13, gum cover 11 and installing sleeve 1; The air-filled pore 19 that communicates with inflation blister cavities 18 inside is arranged at the middle part of installing sleeve 1.By the interior inflation of 19 pairs of inflation blister cavities 18 of air-filled pore, gum cover 11 is expanded and be wrapped in outside rock core, reach the effect that rock core is positioned; Thereby effectively prevent rock core in the situation that rigid extruding generation rock core breaks and is out of shape, guarantee the integrity degree of rock core.
As shown in Figure 1, lower electrode device comprises bottom electrode insulation rod 22, lower potential electrode 23 and lower downhole joint 24; Be installed with lower potential electrode 23 in the upper end of bottom electrode insulation rod 22; The upper end of the lower end of bottom electrode insulation rod 22 and diversion rod 2 is fixed together and is positioned at installing sleeve 1; On bottom electrode insulation rod 22 and diversion rod 2, cable-through hole is arranged, slotted line 25 is installed in cable-through hole, the upper end of slotted line 25 and bottom electrode insulation rod 22 link together; The lower end of slotted line 25 is installed with lower downhole joint 24 and is positioned on diversion rod 2; The top electrode device comprises top electrode insulation rod 26, upper potential electrode 27 and upper downhole joint 28; The lower end of top electrode insulation rod 26 is installed with potential electrode 27, and top electrode insulation rod 26 is clamped on the inside upper part of installing sleeve 1 by upper snap ring 12; Form between lower potential electrode 23, upper potential electrode 27 and installing sleeve 1 cavity 3 is installed; In top electrode insulation rod 26, cable-through hole is arranged, connecting line 29 is installed in cable-through hole, the lower end of connecting line 29 and top electrode insulation rod 26 link together; The upper end of connecting line 29 is installed with downhole joint 28 and is positioned on top electrode insulation rod 26.Be connected by wire with resistivity measuring instrument respectively with upper downhole joint 28 by lower downhole joint 24, inner lower potential electrode 23, rock core and upper potential electrode 27 contact, and realize the measurement of rock core resistivity; In this process, be subject to the impact of external environment condition for the carried charge that prevents lower potential electrode 23 and upper potential electrode 27, adopt respectively the bottom electrode insulation rod 22 and the top electrode insulation rod 26 that are connected with upper potential electrode 27 with lower potential electrode 23 to realize installing with spacing in the outside of installing sleeve 1, improve measuring accuracy.
As shown in Figure 1, in the upper inner of top electrode insulation rod 26, notch cuttype groove wide at the top and narrow at the bottom is arranged, in the bottom of notch cuttype groove, internal thread is arranged, be installed with the displacement joint 32 that is bolt shape at the notch cuttype groove by screw thread; The displacement joint through hole that communicates with displacing fluid feed pathway 4 is arranged in displacement joint 32, the water conservancy diversion displacement interface 30 of taper wide at the top and narrow at the bottom is arranged in the upper end of displacement joint 32 and communicate with displacement joint through hole.Displacing fluid can be poured into by the water conservancy diversion displacement interface 30 of taper like this, be improved the displacing fluid use amount, cut the waste.
As shown in Figure 1, be installed with O-ring seal 31 between upper snap ring outward flange 14 lower ends and installing sleeve 1 upper end; Be installed with O-ring seal 31 between lower snap ring outward flange 15 upper ends and installing sleeve 1 lower end.O-ring seal 31 can increase the sealing between surface of contact, installing sleeve 1 is played the effect of sealing.
As shown in Figure 1, the lower outside of upper snap ring 12 is taper type wide at the top and narrow at the bottom; The upper outside of lower snap ring 13 is up-narrow and down-wide taper type.Be convenient to like this snap ring 12 and lower snap ring 13 respectively and installation and removal between installing sleeve 1; Prevent from occuring when mounted gum cover 11 crimpings, cause poorly sealed situation.
As shown in Figure 1, hydrops groove 6 is cone tank wide at the top and narrow at the bottom.Cone tank can make and enter hydrops groove 6 displacing fluids with Action of Gravity Field arrival slot bottom, and can discharge by fluid pipeline 7, improves flow rate of liquid; Can not affect simultaneously the interior gas communication of airflow line 8.
Above technical characterictic has consisted of most preferred embodiment of the present utility model, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, satisfies the demand of different situations.
The use procedure of the utility model most preferred embodiment:
At first the utility model is installed with on support, be wired to respectively upper downhole joint 28 and lower downhole joint 24 on resistivity measuring instrument again, again ready rock core is placed on lower potential electrode 23, by upper snap ring 14, that upper potential electrode 9 and top electrode insulation rod 8 is fixing; The fluid of lifting cylinder body 20 is controlled and is made piston rod 21 up, and upper potential electrode 27, rock core, lower potential electrode 22 are in contact with one another to be measured afterwards to rock core resistivity; After measurement, the gas control system by lifting cylinder body 20 makes piston rod 21 descending, and lower potential electrode 22 is got final product from the interior extraction of installing sleeve 1 and removal of core.
Claims (8)
1. the special-purpose rock core displacement of profit is electrically measured clamper, it is characterized in that comprising top electrode device, lower electrode device, lifting power plant, installing sleeve and diversion rod; The top of diversion rod is sleeved in installing sleeve, and the upper end of diversion rod is installed with lower electrode device and is positioned at installing sleeve; The lower end of diversion rod is fixed with the lifting power plant that lower electrode device and diversion rod are moved up and down; Be installed with the top electrode device on the top of installing sleeve; Be formed for the installation cavity of rock core measured resistivity between top electrode device, lower electrode device and installing sleeve; The displacing fluid feed pathway and the displacing fluid liquid outlet channel that communicate with the installation cavity are arranged respectively on top electrode device and lower electrode device, there is the hydrops groove corresponding with displacing fluid liquid outlet channel diversion rod upper end, and the gentle stream pipeline of the fluid pipeline that communicates with hydrops trench bottom and top is arranged respectively on diversion rod; Be installed with respectively drain pipe pipeline joint and air-flow pipe joint and be positioned at diversion rod in the outer end of the gentle stream pipeline of fluid pipeline.
2. the special-purpose rock core displacement of profit according to claim 1 is electrically measured clamper, it is characterized in that lifting power plant adopts the gas control lifting power plant; The gas control lifting power plant comprises lifting cylinder body and piston rod; Lifting cylinder body is arranged below installing sleeve, and being equipped with in lifting cylinder body can be along the axially movable piston rod of lifting cylinder body, and the upper end of piston rod and the lower end of diversion rod are fixed together.
3. the special-purpose rock core displacement of profit according to claim 1 and 2 is electrically measured clamper, it is characterized in that being equipped with in installing sleeve gum cover, being installed with in the upper end of installing sleeve can be with the fixing upper snap ring in gum cover upper end, and the top electrode device is clamped in installing sleeve by upper snap ring; Being installed with in the lower end of installing sleeve can be with the fixing lower snap ring in gum cover lower end, and lower snap ring is sleeved on diversion rod; Snap ring outward flange and lower snap ring outward flange on the lower outside of the upper outside of upper snap ring and lower snap ring has respectively; Be installed with upper pressing cap in the upper end of installing sleeve and upper snap ring outward flange is held out against upper surface at installing sleeve; Be installed with lower pressing cap in the lower end of installing sleeve and lower snap ring outward flange is held out against lower surface at installing sleeve; Form the inflation blister cavities of sealing between upper snap ring, lower snap ring, gum cover and installing sleeve; The air-filled pore that communicates with inflation blister cavities inside is arranged at the middle part of installing sleeve.
4. the special-purpose rock core displacement of profit according to claim 3 is electrically measured clamper, it is characterized in that lower electrode device comprises bottom electrode insulation rod, lower potential electrode and lower downhole joint; Be installed with lower potential electrode in the upper end of bottom electrode insulation rod; The lower end of bottom electrode insulation rod and the upper end of diversion rod are fixed together and are positioned at installing sleeve; On bottom electrode insulation rod and diversion rod, cable-through hole is arranged, slotted line is installed in cable-through hole, the upper end of slotted line and bottom electrode insulation rod link together; The lower end of slotted line is installed with lower downhole joint and is positioned on diversion rod; The top electrode device comprises top electrode insulation rod, upper potential electrode and upper downhole joint; The lower end of top electrode insulation rod is installed with potential electrode, and the top electrode insulation rod is clamped on the inside upper part of installing sleeve by upper snap ring; Form between lower potential electrode, upper potential electrode and installing sleeve cavity is installed; In the top electrode insulation rod, cable-through hole is arranged, connecting line is installed in cable-through hole, the lower end of connecting line and top electrode insulation rod link together; The upper end of connecting line is installed with downhole joint and is positioned on the top electrode insulation rod.
5. the special-purpose rock core displacement of profit according to claim 4 is electrically measured clamper, the upper inner that it is characterized in that the top electrode insulation rod has notch cuttype groove wide at the top and narrow at the bottom, internal thread is arranged at the bottom at the notch cuttype groove, is installed with the displacement joint that is bolt shape by screw thread at the notch cuttype groove; The displacement joint through hole that communicates with the displacing fluid feed pathway is arranged in the displacement joint, the water conservancy diversion displacement interface of taper wide at the top and narrow at the bottom is arranged in the upper end of displacement joint and communicate with displacement joint through hole.
6. according to claim 3 or the 4 or 5 special-purpose rock core displacements of described profit are electrically measured clamper, it is characterized in that the lower outside of snap ring is taper type wide at the top and narrow at the bottom; The upper outside of lower snap ring is up-narrow and down-wide taper type.
7. the special-purpose rock core displacements of according to claim 3 or 4 or 5 or 6 described profits are electrically measured clamper, it is characterized in that being installed with O-ring seal between snap ring outward flange lower end and installing sleeve upper end; Be installed with O-ring seal between lower snap ring outward flange upper end and installing sleeve lower end.
8. according to claim 1 and 2 or 3 or 4 or 5 or the 6 or 7 special-purpose rock core displacements of described profit are electrically measured clamper, it is characterized in that the hydrops groove is cone tank wide at the top and narrow at the bottom.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220591760 CN202948028U (en) | 2012-11-12 | 2012-11-12 | Core displacement electrical measuring holder special for oil water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220591760 CN202948028U (en) | 2012-11-12 | 2012-11-12 | Core displacement electrical measuring holder special for oil water |
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CN202948028U true CN202948028U (en) | 2013-05-22 |
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Application Number | Title | Priority Date | Filing Date |
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CN 201220591760 Expired - Fee Related CN202948028U (en) | 2012-11-12 | 2012-11-12 | Core displacement electrical measuring holder special for oil water |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103293382A (en) * | 2013-05-31 | 2013-09-11 | 中国石油集团西部钻探工程有限公司 | Fluid displacing and draining electrode |
CN103293192A (en) * | 2013-05-31 | 2013-09-11 | 中国石油集团西部钻探工程有限公司 | Displacement electrode |
-
2012
- 2012-11-12 CN CN 201220591760 patent/CN202948028U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103293382A (en) * | 2013-05-31 | 2013-09-11 | 中国石油集团西部钻探工程有限公司 | Fluid displacing and draining electrode |
CN103293192A (en) * | 2013-05-31 | 2013-09-11 | 中国石油集团西部钻探工程有限公司 | Displacement electrode |
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 |
CN103293192B (en) * | 2013-05-31 | 2016-01-13 | 中国石油集团西部钻探工程有限公司 | Displacement electrode |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20181112 |
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CF01 | Termination of patent right due to non-payment of annual fee |