CN101696951B - Fluid resistivity and conductivity probe - Google Patents
Fluid resistivity and conductivity probe Download PDFInfo
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- CN101696951B CN101696951B CN 200910235671 CN200910235671A CN101696951B CN 101696951 B CN101696951 B CN 101696951B CN 200910235671 CN200910235671 CN 200910235671 CN 200910235671 A CN200910235671 A CN 200910235671A CN 101696951 B CN101696951 B CN 101696951B
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Abstract
The invention discloses a fluid resistivity and conductivity probe, which comprises a shell, a resistivity system, a conductivity system and a balancing piston, wherein the resistivity system and the conductivity system are arranged in the shell side by side, and the space between the resistivity system and the shell and space between the conductivity system and the shell are filled with hydraulic oil; the balancing piston is arranged on one side of the conductivity system far away from the resistivity system and is used for balancing the pressure between the hydraulic oil and a stratum fluid; and the resistivity system and the conductivity system are provided with axial center-through fluid flow channels, and the flow channels are provided with insulating layers. The resistivity and conductivity probe is designed for measuring the resistivity and the conductivity of the fluid when the stratum fluid passes through the centers of the resistivity system and the conductivity system, thereby providing bases for analyzing and judging the properties of the fluid and taking a stratum authentic sample.
Description
Technical field
The invention of this reality relates to for a kind of measurement fluid resistivity and conductivity probe.
Background technology
The conductive capability of the different rocks and minerals of occurring in nature is not identical, especially contained fluid properties is not simultaneously in the stratum, the electric conductivity difference is very large, therefore resistivity and conductivity is one of important physical parameter in stratum, and carrying out the resistivity and conductivity well logging in Oil/gas Well is to seek and the quantitative basic skills of determining that oil gas exists.
Resistivity and conductivity probe is used for identifying resident fluid, analyzes formation fluid property in the petroleum exploration and development formation testing, and for successfully getting true stratum offering sample according to having very important effect.Present resistivity or conductivity probe can not be applicable to the down-hole high temperature and high pressure environment, in addition resistivity or conductivity instrument its be mainly used in surveying instrument exterior circumferential formation resistivity or conductivity, complex structure, bulky can't be used for resident fluid resistivity and the conductivity that earth layer measuring instrument is taken out as the sensor measurement pump.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of fluid resistivity and conductivity probe that the earth layer measuring instrument pump is taken out of measuring.
In order to address the above problem, the invention provides a kind of fluid resistivity and conductivity probe comprises: comprising: shell, resistivity system, conductivity system and balance piston, resistivity system and conductivity system are installed in the housing side by side, are filled with hydraulic oil in the space between described resistivity system and conductivity system and described shell; Described balance piston is arranged on the side away from resistivity system of described conductivity system, be used between equilibrium liquid force feed and the resident fluid pressure; Fasten the flow circulation passage that is provided with the axial centre perforation in described resistivity system and conductivity, be provided with insulation course at this circulation passage.
Preferably, described resistivity comprises an emitting electrode, two receiving electrodes and two earth polars, along the arrangement of described housing is successively: earth polar, emitting electrode, receiving electrode, emitting electrode and earth polar, identical electrodes adopt wire to connect, and are in same current potential.
Preferably, described conductivity is to comprise measuring coil and reference coil, and measuring coil and reference coil axially are arranged side by side along described housing.
Preferably, also be provided for the oiling joint of injection liquid force feed at an end of described housing.
Preferably, also being provided be used to drawing resistivity and conductivity at the other end of described housing is electric weather proof receptacle.
The present invention is by a kind of resistivity and conductivity probe of design, thereby resident fluid is that fluid resistivity and conductivity is passed through to measure in the center from resistivity and conductivity, thereby judges fluid properties and provide foundation for getting the stratum authentic sample for analyzing.Resistivity system and conductivity assembly become and are enclosed in to be immersed in the oil-overflow shell, comprise simultaneously a balance piston, the pressure reduction that resistivity is and conductivity system bears like this is smaller, thereby satisfy the high voltage bearing requirement of probe, the weather proof receptacle of high temperature high voltage resistant is adopted in simultaneously electrical connection, by electric draw of this plug with resistivity and conductivity system.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is Fig. 1 resistivity architecture synoptic diagram;
Fig. 3 is Fig. 1 conductivity architecture synoptic diagram.
Embodiment
Shown in Fig. 1～3, the present invention includes: shell 1, resistivity are 2, conductivity is 3 and balance piston 4, resistivity be 2 and conductivity be 3 to be installed in side by side in the housing 1, resistivity be 2 and conductivity be 3 and shell 1 between the space in be filled with hydraulic oil.Balance piston 4 be arranged on conductivity be 3 be a side of 2 away from resistivity, be used between equilibrium liquid force feed and the resident fluid pressure.Resistivity be 2 and conductivity be 3 to be provided with the flow circulation passage 7 that axial centre connects, be provided with insulation course 8 at this circulation passage.Insulation course 8 adopts the PEEK insulating material.
The present invention adopt with resistivity be 2 and conductivity be 3 integrated and be enclosed in and be immersed in 1 li on oil-overflow shell, arrange simultaneously one and can carry out pressure compensated balance piston 4, like this resistivity be 2 and conductivity be that 3 pressure reduction that bear are smaller, not only can detect resistivity and the conductivity of the fluid that flows through from the center, but also can under high temperature and high pressure environment, use, high temperature can reach 200 ℃, and high pressure can reach 140MPa, thereby satisfies the requirement of probe high temperature high voltage resistant.
As shown in Figure 2, resistivity 2 comprises an emitting electrode 21, two receiving electrodes 22,23 and two earth polars 24,25, along the arrangement of housing 1 is successively: earth polar 24, emitting electrode 22, receiving electrode 21, emitting electrode 23 and earth polar 25.Every pair of electrode uses wire to connect short circuit, makes it have identical current potential, uses the PEEK insulating material to keep apart between electrode and the electrode, and resident fluid flows from the circulation passage 7 that electrode interior arranges, thereby measures the resistivity of resident fluid.
As shown in Figure 3, conductivity is 3 to comprise measuring coil 31 and reference coil 32, measuring coil 31 and reference coil 32 axially being arranged side by side along housing 1.Measuring coil 31 is with the frequency emitting electromagnetic wave of 20KHz, sensor outer housing 1 ground connection during use, therefore only be received at the shell 1 inner electromagnetic wave that transmits, this part electromagnetic transmission path has passed through the fluid in the flow circulation passage 7, so the fluid conductivity characteristic changes when fluid behaviour changes, the intensity that receives signal changes thereupon, by the measurement of 32 pairs of this Strength Changes of reference coil, thereby reaches the purpose of test fluid flow conductivity.
In addition, as shown in Figure 1, also be provided for the oiling joint 5 of injection liquid force feed at an end of housing 1, be convenient to oiling and fully reach maintenance.The other end of housing 1 also be provided be used to draw resistivity be 2 and conductivity be 3 electric weather proof receptacles 6, by this plug with resistivity be 2 and conductivity be that 3 electric wire is drawn.
The present invention is by a kind of resistivity and conductivity probe of design, resident fluid from resistivity be 2 and conductivity be that 3 centers are passed through, thereby measurement fluid resistivity and conductivity, resistivity be 2 and conductivity be 3 integrated and be enclosed in and be immersed in 1 li on oil-overflow shell, comprise simultaneously a pressure compensating system, like this resistivity be 2 and conductivity 3 be that the pressure reduction that bears is smaller, thereby satisfy the high voltage bearing requirement of probe, the weather proof receptacle 6 of high temperature high voltage resistant is adopted in simultaneously electrical connection, by electric draw of this plug with resistivity and conductivity system.
In sum; being preferred embodiment of the present invention only below, is not for restriction protection scope of the present invention, therefore; all any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a fluid resistivity and conductivity probe, it is characterized in that, comprise: shell, resistivity system, conductivity system and balance piston, resistivity system and conductivity system are installed in the housing side by side, are filled with hydraulic oil in the space between described resistivity system and conductivity system and described shell; Described balance piston is arranged on the side away from resistivity system that described conductivity is, is used for the pressure between equilibrium liquid force feed and the resident fluid; Fasten the flow circulation passage that is provided with the axial centre perforation in described resistivity system and conductivity, be provided with insulation course at this circulation passage, described resistivity is the resistivity that is used for measuring resident fluid, and described conductivity is the conductivity that is used for the measurement resident fluid.
2. probe as claimed in claim 1, it is characterized in that, described resistivity is to comprise the first earth polar, the first emission earth polar, receiving electrode, the second emitting electrode and the second earth polar, electrode is followed successively by along described housing axial array: the first earth polar, the first emitting electrode, receiving electrode, the second emitting electrode and the second earth polar, wherein, adopt wire to connect between the first earth polar and the second earth polar, the first emitting electrode and the second emitting electrode, be in same current potential.
3. probe as claimed in claim 1 is characterized in that, described conductivity is to comprise measuring coil and reference coil, and measuring coil and reference coil axially are arranged side by side along described housing.
4. such as the arbitrary described probe of claims 1 to 3, it is characterized in that also be provided for the oiling joint of injection liquid force feed at an end of described housing, the other end is provided for the vent port that exhaust is used.
5. probe claimed in claim 4 is characterized in that, also being provided be used to drawing resistivity and conductivity at the end that vent port is set of described housing is electric weather proof receptacle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910235671 CN101696951B (en) | 2009-10-10 | 2009-10-10 | Fluid resistivity and conductivity probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910235671 CN101696951B (en) | 2009-10-10 | 2009-10-10 | Fluid resistivity and conductivity probe |
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| Publication Number | Publication Date |
|---|---|
| CN101696951A CN101696951A (en) | 2010-04-21 |
| CN101696951B true CN101696951B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910235671 Active CN101696951B (en) | 2009-10-10 | 2009-10-10 | Fluid resistivity and conductivity probe |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331445B (en) * | 2011-06-16 | 2013-08-07 | 河南省电力公司济源供电公司 | Detection method for water pollution of hydraulic oil of high-voltage circuit breaker |
| CN104265285B (en) * | 2014-09-23 | 2017-03-08 | 中国海洋石油总公司 | A kind of device of measurement oil-base mud resistivity |
| GB2539674B (en) * | 2015-06-23 | 2019-03-13 | Megger Instruments Ltd | Test apparatus |
| CN105548720A (en) * | 2015-12-18 | 2016-05-04 | 北京佰纯润宇生物科技有限公司 | Conductivity sensor and manufacture method thereof |
| CN114859132A (en) * | 2022-05-11 | 2022-08-05 | 江苏科技大学 | Static and dynamic fluid resistivity testing device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2502268Y (en) * | 2001-11-09 | 2002-07-24 | 大庆油田有限责任公司 | Total borehold fluid impedance water-holding rate sensor |
| CN1869400A (en) * | 2005-05-27 | 2006-11-29 | 中国石化集团胜利石油管理局钻井工艺研究院 | Double-induction resistivity measuring instrument during drilling |
-
2009
- 2009-10-10 CN CN 200910235671 patent/CN101696951B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2502268Y (en) * | 2001-11-09 | 2002-07-24 | 大庆油田有限责任公司 | Total borehold fluid impedance water-holding rate sensor |
| CN1869400A (en) * | 2005-05-27 | 2006-11-29 | 中国石化集团胜利石油管理局钻井工艺研究院 | Double-induction resistivity measuring instrument during drilling |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-219282A 2004.08.05 |
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| CN101696951A (en) | 2010-04-21 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |