API RP 13L:2003 pdf download
API RP 13L:2003 pdf download.Recommended Practice for Training and Qualification of Drilling Fluid Technologists.
• Describe the relationships among pore pressure, depth. and hole size, with respect to casing setting decisions.
• Calculate hole volumes, flow rates, and circulating times.
• Draw a schematic of a weilbore, properly labeled.
• Calculate total volumes, volume/depth, and retention time.
• Diagram a rig tank setup for proper mixing, settling, and flow.
• Describe the ftinctioning of a rig mud pump.
• Calculate pump output.
• Use a viscometer to measure the shear stresses at vanous shear rates.
• Calculate the commonly measured rheological properties.
• Describe the commonly used drilling fluid, theological mathematical models.
• Plot viscosity versus shear rate and determine effective viscosities.
• Describe the use and limitations of the API Funnel Viscosity.
• Describe how and which viscosity measurements relate to hole cleaning.
• Calculate pressure drops for each annular section.
• Calculate the Equivalent Circulating Density (ECD).
• Calculate the cuttings transport efficiency.
• Calculate the relationship of drilling fluid viscosity to surge and swab pressures, solids suspension. and weight material sag. Define each of these terms.
• Use the API retort to measure the water, oil and solids content in a drilling fluid.
• Describe the causes of solids buildup.
• Measure the MBT and calculate the equivalent concentration of bentonite.
• Calculate the low gravity and high gravity solids in fresh water, salt water, oil-based, and synthetic- based fluid.
• Describe the relationship between solids content in a drilling fluid and the API Plastic Viscosity and Yield Point.
• Calculate the drilled solids to bentonite ratio and describe its siznificance.
• Calculate a material balance verification of the primary solids analysis calculations.
• Describe why adequate solids control on the rig is important.
• List the size classification of solids in a drilling fluid.
• List the typical types of drilled solids.
• Explain the important of particle size distribution and solids surface area.
• Explain the economic importance/impact of dilution in drilling fluids.
• List the types of solids control equipment normally found on a drilling rig.
• Draw a diagram placing each type of solids control equipment in proper sequence for both an unweighted mud and a weighted mud (water- and oil-based) and in its proper place in the rig pit system to assure sequential processing.
• Describe the concept of full flow processing.
• Describe the importance of shale shakers and screen sizes.
• Describe the relationship between screen mesh designation, wire diameter, screen opening dirnensions on cut point, and screen life.
• Describe drilling fluid loss and its effect on drilling fluids and the drilling operation.
• Use the API low pressure and HTHP filter presses to obtain filtrate data.
• Plot a filtrate versus square root of time fluid loss graph.
• Describe spurt loss and constant rate filtration.
• Explain the concept of permeability and porosity.
• Describe the difference between static and dynamic filtration.
• List the factors that control filtration in drilling fluids.
• Describe the causes and types of lost circulation.
• Describe treatments for each type of lost circulation.
• Describe how the fluid properties of mud weight and viscosity effect lost circulation.
• Describe the causes and types of stuck pipe.
Describe a non-aqueous fuid (NAF) and explain how it differs from a water- based fluid.
List the advantages and disadvantages of NAF.
Describe an “invert emulsion”.
Explain the“activity” concept of wellbore stability as it relates to NAF.
List the base fuids commonly used to prepare NAF drilling fluids.
List the physical properties measured for a base fluid.
List the typical components of a NAF and the function of each component.
●Describe why aromatic content of a base fluid is important.
●Describe why the pour point of a base fluid is important.
Describe how to make a“good” emulsion.
●Describe why salts are added to the aqueous phase.
●Describe why all solids in a NAF must be“oil wet”.
Describe the efects of water wet barite in a NAF.
Use the API retort to measure the liquid and solids fraction in the fuid.
●Calculate the solids, oil and water content.
Calculate“oil/water ratio”.
●Calculate the salt content, alkalinity, and excess lime content of the fuid.
Use the API Emulsion Stability Meter to determine the electrical stability of a NAF.
Describe the special handling needed for NAF
●List the modifications and special precautions needed on the rig to handle NAFs, including per-
sonal protective equipment.
Describe the special environmental considerations needed when drilling with NAFs.
Write a procedure for displacing NAFs into or out of either a cased hole or into an open hole.
