Shale has become a significant challenge for the oil and gas industry due to its sensitivity to drilling activities. It is susceptible to wellbore instability, bit balling, and dispersion of shale particles in drilling fluids. Over the years, many oil and gas companies developed various types of shale inhibitors to overcome the shale problems. The …
The Objective Of the Gas Show article is to: 1 Origin Of Gas Show The general definition of a “gas show” is a significant occurrence of hydrocarbon gases detected from the mud stream and identifiable as the result of the drilling of a specific increment of formation. One of the prime objectives of surface logging …
The low-temperature API filter press, operated at room temperature and low pressure, is used for measuring fluid loss only with Water Based Mud. In brief, the API filter press test procedure pressurizes a sample of mud in a chamber while the volume of filtrate that passes through filter paper over a specified period is measured. The …
A drilling fluid viscometer or rheometer is used for obtaining fluid rheology (apparent viscosity, plastic viscosity, yield point, and gel strengths) (check also Yield Point In Drilling Mud Formula), which is a measure of the resistance of a fluid to flow. Several models are available, powered by a hand-crank or electric motor. The instrument comprises …
The drilling mud circulating system components comprises the following equipment: Active Tank This is the tank from which drilling fluid is pumped downhole and to which drilling fluid returns from the hole is received. The route taken by the drilling fluid when circulating is called the active (circulating) system. At the start of …
Retort analysis for drilling fluid is used for determining oil, water and solids content in the mud, comprising a sample chamber assembly of known volume filled with mud. The sample chamber is put in a heating chamber to boil off the water (and oil), which passes via a condenser tube into a graduated glass measuring …
Samples are examined under a microscope for: The objective is to depict changes in lithology and the appearance of new formations. The microscope and ultraviolet light are complementary tools in reconstructing the characteristics of the originating strata. An estimate of the lithology, staining, and porosity percentages is made carefully since factors such as grain shape …
A definite time interval is always required for pumping the samples from a particular depth to the surface where they can be collected. When determined, This critical time interval is called “Drilling lag time” and can be measured in terms of pump strokes and time. This lag applies to all downhole information, including formation cuttings …
What Is The Definition Of Drilling Mud Pump Output? The rig pump output is the output of the drilling mud pumps, which can be expressed normally in gallons per stroke, bbls per stroke, or m3 per stroke. This term is a very important figure which is necessary to be known as it is important for …
Mud balance is one of the devices used for measuring the density of a Water-Based Mud, Oil Based Mud or completion / work-over fluids. In this article, we will handle the good practice of the mud balance test procedure. Mud Balance Mud Balance Equipment Mud balance 1-qt (946 cm) graduated mud cup Thermometer: 32 to …