The quadruple high temperature and high pressure filtration instrument is used to

simulate the filtration amount of drilling fluid and cement slurry under the

condition of deep well (high temperature and high pressure), and can prepare the

filter cake formed after filtration under the condition of high temperature and high

pressure.

The instrument is composed of main body (base, frame and heating system), tee,

drilling fluid cup, high-pressure filtrate receiver, electrical box, pipeline system

and qg-80 pressurized manifold.

The instrument can measure multiple drilling fluid samples at the same time or a

single drilling fluid sample, and the test efficiency is high.

Inject the quantitative drilling fluid sample into the drilling fluid cup. After sealing,

put the drilling fluid cup into the heater and heat it. At the same time,

quantitatively inflate and pressurize the drilling fluid cup through the

pressurization manifold. Under certain temperature and pressure conditions, make

the sample bear pressure and pass through the filter paper of the filter screen in the

drilling fluid cup to produce filtrate. Measure the volume of filtrate and then

evaluate the filtration performance of drilling fluid.