What is API filtration?

What is API filtration?

API Fluid Loss Test (low-pressure, low-temperature filtration test) is a test used to measure a filtration of mud with ambient temperature and 100 psi differential pressure.

How do you calculate API water loss?

API Fluid Loss = 2V30 (51) where V30 is the volume of filtrate collected at 30 min, expressed in milliliters. For tests that “blow dry” in less than 30 min, use Equation (52) or Equation (53) to determine the Calculated API Fluid Loss.

What is fluid loss in drilling?

The leakage of the liquid phase of drilling fluid, slurry or treatment fluid containing solid particles into the formation matrix. Fluid-loss additives are used to control the process and avoid potential reservoir damage.

What is filtration test?

The Bacterial Filtration Efficiency (BFE) test is performed on filtration materials and devices that are designed to provide protection against biological aerosols, such as face masks, surgical gowns, caps, and air filters.

How do you do a HEPA filter integrity test?

5.0 PROCEDURE 5.4 Connect one end of DOP measuring probe to the upstream port of photometer. 5.5 Turn the knob provided on photometer at the upstream position. 5.6 Hold the detector of DOP measuring probe before HEPA filter or at the port provided in the plenum. 5.7 Press a key for 100% concentration.

What is filtrate loss?

3.8 Fluid Loss (Filtration) Control. Fluid loss refers to the volume of filtrate lost to the permeable material due to the process of filtration. Temperature, pressure, time and permeability are the main factors affecting fluid loss.

What is fluid loss in cement slurry?

Fluid loss control additives are employed for maintaining a constant water/solid ratio in cement slurries downhole by controlling the rate of water loss to adjacent permeable zones through suitable viscosification; otherwise the cement slurries would lose water by filtration into these zones.

Why do we use mud balance test?

The four-scale mud balance is used to determine the density or weight of drilling fluids or cement slurries. The mud balance is designed so that the mud cup at one end of the arm is balanced by a fixed counterweight at the opposite end, with a sliding weight rider free to move along a graduated scale.

How do I calibrate my mud balance?

CALIBRATION: The Mud Balance calibration can be checked using fresh water. At 70°F (21°C) fresh water should give a reading of 1.00 on the specific gravity scale lb/sq In/1000ft, 8.34 on the lbs/gal scale, and 62.3 on the lbs/cu ft scale.

How does the API filter press test work?

The low temperature API filter press, which is operated at room temperature and low pressure, is used for measuring fluid loss only with Water Based Mud. In brief, API filter press test procedure is pressurizing a sample of mud in a chamber while the volume of filtrate that passes through filter paper over a specified time period is measured.

How does the API fluid loss test work?

1. n. [Drilling Fluids] A test to measure static filtration behavior of water mud at ambient (room) temperature and 100-psi differential pressure, usually performed according to specifications set by API, using a static filter press. The filter medium is filter paper with 7.1-in2 filtering area.

What does the API master test kit measure?

The API FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate.

What is the aim of a mud filtration test?

Aim of experiment: The test consists of monitoring the rate, at which fluid is forced from a filter press under specific conditions of time, temperature and pressure, then measuring the thickness of the residue depositedupon the filter paper. 3.