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Emulsion stability test instrument and test method of oil-based drilling liquid

An oil-based drilling fluid and emulsification stability technology, applied in the field of oil deep well drilling, can solve problems such as inability to provide high temperature and high pressure, and inability to accurately measure the emulsification stability of high temperature and high pressure oil-based drilling fluid

Inactive Publication Date: 2017-05-31
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing oil-based drilling fluid emulsion stability tester itself cannot provide a high-temperature and high-pressure environment, and cannot accurately measure the emulsion stability of high-temperature and high-pressure oil-based drilling fluid

Method used

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  • Emulsion stability test instrument and test method of oil-based drilling liquid
  • Emulsion stability test instrument and test method of oil-based drilling liquid
  • Emulsion stability test instrument and test method of oil-based drilling liquid

Examples

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Embodiment 1

[0034] See figure 1 , is an oil-based drilling fluid emulsion stability tester 100 provided by the embodiment of the present invention, including a temperature control system 200, a pressurization system 300, a test system 400 and a data acquisition system 500; the pressurization system 300 and the The test system 400 is connected, the temperature control system 200 is electrically connected to the test system 400 , and the data acquisition system 500 is electrically connected to the pressurization system 300 , the temperature control system 200 and the test system 400 .

[0035] See figure 2 , is a schematic diagram of the circuit structure of the test kettle body 410 and the test electrode 420 provided by the preferred embodiment of the present invention. The test system 400 includes a test kettle body 410, a test electrode 420 and a power supply, the power supply is electrically connected to the test electrode 420, the test electrode 420 is electrically connected to the t...

Embodiment 2

[0060] See Figure 6 , the oil-based drilling fluid emulsion stability test method 600 provided in the embodiment of the present invention is applied to the oil-based drilling fluid emulsion stability tester 100, and the oil-based drilling fluid emulsion stability tester 100 includes a temperature control system 200, a pressurized The system 300 , the test system 400 and the data acquisition system 500 , the test system 400 includes a test kettle body 410 and a test electrode 420 . The methods described include:

[0061] Step S610, the temperature control system 200 heats the test kettle body 410 to a preset temperature, and the pressurization system 300 pressurizes the test kettle body 410 to a preset pressure;

[0062]The oil-based drilling fluid to be tested is injected into the test kettle body 410, and the test kettle body 410 is heated by the temperature control system 200. Specifically, the temperature control system 200 includes a heater 210 and a temperature controll...

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Abstract

The invention provides an emulsion stability test instrument and test method of an oil-based drilling liquid, and relates to the field of deep petroleum drilling. The emulsion stability test instrument of the oil-based drilling liquid comprises a temperature control system, a pressurization system, a test system and a data acquisition system, wherein the pressurization system is connected with the test system, the temperature control system is electrically connected with the test system, the data acquisition system is electrically connected with the pressurization system, and the temperature control system and the test system, the test system comprises a test kettle body, a test electrode and a power supply, the power supply is electrically connected with the data acquisition system and the test electrode, the test electrode is electrically connected with the test kettle body, the test kettle body is electrically connected with the temperature control system, and the test kettle body is connected with the compression system. With the emulsion stability test instrument and test method of the oil-based drilling liquid, provided by the invention, a high-temperature and high-pressure environment under a deep well can be truly and effectively simulated, and the emulsion stability of the oil-based drilling liquid under the high-temperature and high-pressure environment is measured.

Description

technical field [0001] The invention relates to the field of oil deep well drilling, in particular to an oil-based drilling fluid emulsion stability tester and a test method. Background technique [0002] With the increase of high-temperature deep well drilling, the frequency of using oil-based drilling fluid has greatly increased. However, when drilling deep and ultra-deep wells, the high temperature and high pressure make the emulsion easily lose stability. Therefore, it is necessary to effectively simulate the actual downhole conditions and accurately evaluate the emulsification stability of oil-based drilling fluid under high temperature and high pressure environment for downhole safety. [0003] The oil-based drilling fluid emulsion stability tester on the market can detect the emulsion stability of oil-based drilling fluid by testing the demulsification voltage. However, the existing oil-based drilling fluid emulsion stability tester itself cannot provide a high-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/92
Inventor 王松王显光李红林永学刘罡曾义金尚娟芳
Owner CHINA PETROLEUM & CHEM CORP
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