CN201637718U - High temperature and high voltage electrical stability tester - Google Patents
High temperature and high voltage electrical stability tester Download PDFInfo
- Publication number
- CN201637718U CN201637718U CN2010201074599U CN201020107459U CN201637718U CN 201637718 U CN201637718 U CN 201637718U CN 2010201074599 U CN2010201074599 U CN 2010201074599U CN 201020107459 U CN201020107459 U CN 201020107459U CN 201637718 U CN201637718 U CN 201637718U
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- high temperature
- electrical stability
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Abstract
The utility model relates to a high temperature and high voltage electrical stability tester for drilling fluid, which belongs to the technical field of drilling fluid performance testers and comprises a high-temperature autoclave body, a measuring head electrode, a heating jacket and a voltage control device, wherein the heating jacket is arranged on the high-temperature autoclave body; the top of the autoclave body is provided with a high-temperature autoclave cover which is provided with the measuring head electrode and a pressurizing valve; and the voltage control device is arranged at one side of the high-temperature autoclave body. In the utility model, an intelligent microcomputer temperature controller controls the heating of the heating jacket, and pressing on a sample by the pressurizing valve, the voltage fluctuation is automatically controlled, thereby accurately judging the electrical stability of the drilling fluid and solving the problems that the existing electrical stability tester cannot truly reflect the situation under the shaft and is not adaptive to drilling deep shaft or ultra-deep shaft under the normal temperature and normal pressure. In addition, the utility model can control a normally closed switch to cut off the power supply through the time delay and achieves the safe protection function, the unattended emulsion-breaking voltage testing can be realized through the prompting of an alarm, and the utility model is applicable to test the electrical stability of the drilling fluid of various oil fields.
Description
Technical field:
The utility model relates to a kind of high temperature and high pressure electrical stability tester of drilling fluid, belongs to testing performance of drilling fluid instrument, field of instrumentation technology.
Background technology:
The electrical stability of drilling fluid is measured at present, all measures under normal temperature, condition of normal pressure.Because downhole temperature and pressure is all than ground height, mud is different the performance of down-hole and ground mensuration, so can not reflect the down-hole situation truly.Along with the continuous development of drilling technique, bore for adapting to the needs of deep-well or ultra deep well, situation under the simulation well is truly measured the instrument of the electrical stability of drilling fluid under high-temperature and high-pressure conditions, become the present problem demanding prompt solution of oil drilling.
Summary of the invention:
The purpose of this utility model is: temperature and pressure under a kind of energy simulation well is provided, and can directly measures the emulsion-breaking voltage of drilling fluid under high-temperature and high-pressure conditions, thereby judge the electrical stability of various drilling fluids in the down-hole; Overcome the deficiency that existing electrical stability tester can only be measured under normal temperature, condition of normal pressure; And high temperature and high pressure electrical stability tester simple in structure, easy to operate.
The utility model is to realize above-mentioned purpose by following technical solution:
A kind of high temperature and high pressure electrical stability tester, it is made of high temperature kettle, high temperature kettle cover, gauge head electrode, pressurization valve, steam jacket, voltage-operated device, it is characterized in that: be set with steam jacket on the outer wall of high temperature kettle, high temperature kettle top is equipped with high temperature kettle cover and high-pressure sealing ring, high-temperature kettle covers and is provided with gauge head electrode and pressurization valve, one side of high temperature kettle is provided with voltage-operated device, and voltage-operated device is connected with steam jacket with the gauge head electrode respectively by lead; Described voltage-operated device is made of intelligent microcomputer temperature controller, voltage display, alarm, rate setting device, pilot lamp, starting switch, alarm is arranged on the top of voltage-operated device, be provided with the intelligent microcomputer temperature controller in the voltage-operated device, a side of intelligent microcomputer temperature controller is provided with voltage display, rate setting device, pilot lamp and starting switch;
Described voltage-operated device is provided with normally closed switch with the lead that is connected of gauge head electrode.
The beneficial effects of the utility model are:
This high temperature and high pressure electrical stability tester passes through after the direct current supercharging, and its voltage is loaded on the gauge head electrode, by the voltage between the voltage-operated device change electrode.When voltage raises gradually with the speed of setting, when puncturing sample, the display lamp on the voltage controller can be bright, magnitude of voltage can show on voltage display and keep, and, disconnect the power supply on the gauge head electrode by time-delay control normally closed switch, reach the function of safeguard protection; Simultaneously alarm can be pointed out warning, realizes that nobody holds to keep to measure its emulsion-breaking voltage, thereby judges the test of finishing its electrical stability.Temperature and pressure under this high temperature and high pressure electrical stability tester energy simulation well is directly measured the emulsion-breaking voltage value of drilling fluid under high-temperature and high-pressure conditions, judges the electrical stability of drilling fluid.And simple in structure, the emulsion-breaking voltage data of surveying accurate, good reproducibility.
Description of drawings:
Accompanying drawing is the structural representation of high temperature and high pressure electrical stability tester.
Among the figure: 1, pressurization valve, 2, high-pressure sealing ring, 3, the gauge head electrode, 4, high temperature kettle cover, 5, the high temperature kettle, 6, steam jacket, 7, voltage-operated device, 8, intelligent microcomputer temperature controller, 9, normally closed switch, 10, voltage display, 11, alarm, 12, rate setting device, 13, pilot lamp, 14, starting switch.
Embodiment:
This high temperature and high pressure electrical stability tester is made of pressurization valve 1, gauge head electrode 3, high temperature kettle cover 4, high temperature kettle 5, steam jacket 6, voltage-operated device 7, be set with steam jacket 6 on the outer wall of high temperature kettle 5, the top of high temperature kettle 5 is equipped with high temperature kettle cover 4, between high temperature kettle cover 4 and the high temperature kettle 5 high-pressure sealing ring 2 is housed, the centre of high temperature kettle cover 4 is provided with two gauge head electrodes 3, the electrode of gauge head electrode 3 adopts silver alloy to make, electrode embeds on the teflon gauge head of high temperature resistance, makes its insulating property very good.The high temperature kettle cover 4 of gauge head electrode 3 one sides is provided with high-voltage tube, and high-voltage tube is provided with pressurization valve 1; One side of high temperature kettle 5 is provided with voltage-operated device 7.
Voltage-operated device 7 is made of intelligent microcomputer temperature controller 8, voltage display 10, alarm 11, rate setting device 12, pilot lamp 13, starting switch 14.Alarm 11 is arranged on the top of voltage-operated device 7, be provided with intelligent microcomputer temperature controller 8 in the voltage-operated device 7, one side of intelligent microcomputer temperature controller 8 is provided with pilot lamp 13, the below of pilot lamp 13 is provided with starting switch 14, be provided with voltage display 10 between intelligent microcomputer temperature controller 8 and the pilot lamp 13, the below of voltage display 1 is provided with rate setting device 12.Voltage-operated device 7 is connected with two gauge head electrodes 3 that insert high pressure kettle cover 4 by lead, and wherein a connection lead is provided with normally closed switch 9.Steam jacket 6 is connected with the intelligent microcomputer temperature controller 8 of voltage-operated device 7 by lead.
The principle of work of this high temperature and high pressure electrical stability tester be with direct current by supercharging after; its voltage is loaded on the gauge head electrode 3; by the voltage between the voltage-operated device 7 change electrodes; when voltage raises gradually with the speed of setting; when puncturing sample; pilot lamp 13 on the voltage-operated device 7 is lighted; magnitude of voltage can show on voltage display 10 and keep; by time-delay and control normally closed switch 9; can disconnect the power supply on the gauge head electrode 3; reach the function of safeguard protection, simultaneously alarm 11 can be reported to the police in prompting, realizes that nobody holds to keep to measure its emulsion-breaking voltage.
During work, earlier sample is poured in the autoclave body 5, because expanded by heating will take place sample in the process of heating, institute adds sample can not be above 2/3rds of kettle volume; Install high-pressure sealing ring 2, cover the high temperature kettle cover 4 that gauge head electrode 3 is housed, regulate pressurization valve 1, the speed that through-rate setting apparatus 12 setting voltages rise by the required requirement that sample in the kettle is exerted pressure of experiment.Starting switch 14 on the cut-in voltage control device 7, tester will boost automatically according to the rate of pressure rise of setting, and to reach experiment predetermined temperature required when temperature, when gauge head electrode 3 punctures samples, pilot lamp 13 starters are lighted, alarm 11 begins to report to the police, and can measure emulsion-breaking voltage, and magnitude of voltage is presented on the voltage display 10 regularly, delay time after 5 seconds, the contact of normally closed switch 9 is electricly automatic, the electrode outage, and experiment promptly comes to an end.
Claims (2)
1. high temperature and high pressure electrical stability tester, it is by high temperature kettle (5), high temperature kettle cover (4), gauge head electrode (3), pressurization valve (1), steam jacket (6), voltage-operated device (7) constitutes, it is characterized in that: be set with steam jacket (6) on the outer wall of high temperature kettle (5), the top of high temperature kettle (5) is equipped with high temperature kettle cover (4) and high-pressure sealing ring (2), high temperature kettle cover (4) is provided with gauge head electrode (3) and pressurization valve (1), one side of high temperature kettle (5) is provided with voltage-operated device (7), and voltage-operated device (7) is connected with steam jacket (6) with gauge head electrode (3) respectively by lead; Described voltage-operated device (7) is made of intelligent microcomputer temperature controller (8), voltage display (10), alarm (11), rate setting device (12), pilot lamp (13), starting switch (14), alarm (11) is arranged on the top of voltage-operated device (7), be provided with intelligent microcomputer temperature controller (8) in the voltage-operated device (7), a side of intelligent microcomputer temperature controller (8) is provided with voltage display (10), rate setting device (12), pilot lamp (13) and starting switch (14).
2. high temperature and high pressure electrical stability tester according to claim 1 is characterized in that: described voltage-operated device (7) is provided with normally closed switch (9) with the lead that is connected of gauge head electrode (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201074599U CN201637718U (en) | 2010-02-03 | 2010-02-03 | High temperature and high voltage electrical stability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201074599U CN201637718U (en) | 2010-02-03 | 2010-02-03 | High temperature and high voltage electrical stability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637718U true CN201637718U (en) | 2010-11-17 |
Family
ID=43082222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201074599U Expired - Fee Related CN201637718U (en) | 2010-02-03 | 2010-02-03 | High temperature and high voltage electrical stability tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868959A (en) * | 2014-04-04 | 2014-06-18 | 中国石油大学(华东) | Device and method for representing stability of heavy oil |
| CN106770639A (en) * | 2017-01-18 | 2017-05-31 | 长江大学 | Oil base drilling fluid emulsion stability tester and method of testing |
-
2010
- 2010-02-03 CN CN2010201074599U patent/CN201637718U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868959A (en) * | 2014-04-04 | 2014-06-18 | 中国石油大学(华东) | Device and method for representing stability of heavy oil |
| CN103868959B (en) * | 2014-04-04 | 2016-06-15 | 中国石油大学(华东) | The device and method that a kind of mink cell focus stability characterizes |
| CN106770639A (en) * | 2017-01-18 | 2017-05-31 | 长江大学 | Oil base drilling fluid emulsion stability tester and method of testing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120203 |