Electrical stability tester is a portable instrument for measuring the electrical stability (ES) of oil-based drilling fluid. The electric stability of drilling fluid is related to its emulsion stability and wettability. The tester complies with the electrical stability test procedure described in API rp13b-2 Recommended Practice for field testing of oil-based drilling fluid. It is accurate, simple and portable. The influence of the chemical composition and shear history of drilling fluid on the absolute value of ES is very complex. Therefore, it is not advisable to explain the wet state of drilling fluid according to the single measurement of ES. When deciding the treatment plan of drilling fluid, it can only be based on the change trend of ES.
The electrical stability tester is a portable instrument for measuring the electrical stability (ES) of oil-based drilling fluid.
The former structure of the electrical stability tester is mainly composed of external host, electrode, power supply and battery, which is inconvenient to carry and limited to field use. Therefore, the instrument is placed in the instrument box to provide favorable conditions for the use of the outdoor environment.
(Electrical Stability Tester (EST) Model DWY-2A) Electrical stability tester is a portable instrument for measuring the electrical stability (ES) of oil-based drilling fluid. The electric stability of drilling fluid is related to its emulsion stability and wettability. The tester complies with the electrical stability test procedure described in API rp13b-2 Recommended Practice for field testing of oil-based drilling fluid.
(Electrical Stability Tester (EST) Model 194-02) The measurement of electrical stability (ES) is to apply a sinusoidal electrical signal with gradually rising voltage to a pair of parallel plate electrodes immersed in drilling fluid. The resulting current is very weak until it reaches a critical voltage, after which the current intensity rises sharply.
