HTHP consistometer is designed in strict accordance with the requirement of API specification 10, it is a special instrument for measuring cement slurry consistency time.
The stirring blade in the cell of the HTHP consistometerer assembled with the mud cup and then put into the pressure cell. The maximum working pressure is 137Mpa (20000psi) and maximum temperature is 204 C (400 F).
The instrument supplies pressure to the cell body through the pneumatic hydraulic pump, and the pressure system is maintained by controlling pressure relief valve and the pneumatic hydraulic pump.
The hydraulic system consists of oil tank, piping system, valve and filter element.
Use 3000w built-in tubular heater to heat the cell body. The programmable temperature controller automatically controls the temperature rising rate (that is, the temperature gradient). When the mud temperature reaches the expected data, the controller will maintain the set temperature.
The mud cup is driven to rotate by rotating shaft installed in the cell body, which is transmitted by the magnetic drive device at a constant speed of 150±15rpm through the frame. Permanent rare earth magnets are used to ensure high torque and long magnetic field.
The viscosity (i.e., consistency) of cement slurry is obtained by the potentiometer installed in the pressure cell. The potentiometer installed with a standard torque spring inside to prevent the rotating force in the agitator, which is proportional to the cement slurry consistency. Consistency data are displayed directly on the consistency table.
The consistency of cement slurry is obtained by measuring the force on the standard spring. When the slurry cup rotates according to the api gravity specification, the blade in the slurry cup is effected by the cement slurry apply force to the standard spring connected with the blade. When the required consistency is reached, the instrument automatic shutdown function will automatically disconnect the heater, drive the motor, turn on the cooling water and stop the timer. The instrument gives an audible alarm to remind the operator that the experiment is over.