CN101813741A - High temperature and high pressure electrical stability tester - Google Patents
High temperature and high pressure electrical stability tester Download PDFInfo
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- CN101813741A CN101813741A CN201010105224A CN201010105224A CN101813741A CN 101813741 A CN101813741 A CN 101813741A CN 201010105224 A CN201010105224 A CN 201010105224A CN 201010105224 A CN201010105224 A CN 201010105224A CN 101813741 A CN101813741 A CN 101813741A
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- high temperature
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- electrical stability
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Abstract
The invention relates to a high temperature and high pressure electrical stability tester which belongs to the technical field of properties of drilling fluid testing apparatuses and instruments. The tester comprises a high temperature kettle body, a measuring head electrode, a steam jacket, a voltage control device and the like, wherein the steam jacket is installed on the high temperature kettle body, a high temperature kettle cover is installed at the top of the kettle body and provided with the measuring head electrode and a pressurizing valve, and one side of the high temperature kettle body is provided with the voltage control device. In the tester, the heating of the steam jacket and the pressurizing of the pressurizing valve to a sample are controlled by an intelligent microcomputer temperature control device, the voltage fluctuation is automatically controlled, and therefore, the electrical stability of the drilling fluid is accurately judged. The tester solves the problems that a traditional electrical stability tester measures under the conditions of normal temperature and normal pressure, can not truly reflect the underground mining conditions, and can not be adapted to the needs of drilling deep wells or ultra deep wells. A power supply can be cut off through controlling a normally closed switch in time delay to achieve a safe protection function, and an emulsion-breaking voltage is measured under the condition of unattended operation through the hint of an alarm. The invention is suitable for measuring the electrical stabilities of various oil field drilling fluids.
Description
Technical field:
The present invention relates to a kind of high temperature and high pressure electrical stability tester of drilling fluid, belong 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 objective of the invention is to: 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 present invention realizes 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.
Beneficial effect of the present invention is:
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.
Autoclave body 5 mainly is that sample is enclosed in the high pressure vessel, and can add gentleness to it and apply corresponding pressure.Steam jacket 6 adopts resistance ring-type heating jacket, can make the temperature in the autoclave body 5 rise to 260 ℃.Intelligent microcomputer temperature controller 8 is used for regulating and controlling heating or constant temperature of steam jacket 6, can be provided with by the required temperature of requirement of experiment, and steam jacket 6 stops to heat when temperature is set when reaching, and can keep constant temperature by set temperature.Pressurizing valve 1, applies relevant pressure and prevents the liquid gasification when the kettle temperature is higher than 100 ℃ for testing liquid provides pressure.Rate setting device 12 and starting switch 14 cooperate, and can change the voltage at gauge head electrode 3 the two poles of the earth.
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 |
|---|---|---|---|
| CN201010105224A CN101813741A (en) | 2010-02-03 | 2010-02-03 | High temperature and high pressure electrical stability tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105224A CN101813741A (en) | 2010-02-03 | 2010-02-03 | High temperature and high pressure electrical stability tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101813741A true CN101813741A (en) | 2010-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010105224A Pending CN101813741A (en) | 2010-02-03 | 2010-02-03 | High temperature and high pressure electrical stability tester |
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| CN (1) | CN101813741A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728486A (en) * | 2013-12-31 | 2014-04-16 | 青岛科技大学 | Novel high-precision electrical stability tester |
| CN106841312A (en) * | 2017-01-18 | 2017-06-13 | 长江大学 | Test kettle and oil base drilling fluid emulsion stability tester |
| CN112578239A (en) * | 2020-12-04 | 2021-03-30 | 四川鼎玺汽车零部件有限公司 | High-pressure tube detection device |
-
2010
- 2010-02-03 CN CN201010105224A patent/CN101813741A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728486A (en) * | 2013-12-31 | 2014-04-16 | 青岛科技大学 | Novel high-precision electrical stability tester |
| CN106841312A (en) * | 2017-01-18 | 2017-06-13 | 长江大学 | Test kettle and oil base drilling fluid emulsion stability tester |
| CN112578239A (en) * | 2020-12-04 | 2021-03-30 | 四川鼎玺汽车零部件有限公司 | High-pressure tube detection device |
| CN112578239B (en) * | 2020-12-04 | 2023-09-05 | 四川鼎玺创新科技有限公司 | High-pressure pipe detection device |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100825 |