The temperature-dependent coefficient in the SP equation relating the recorded potential to the ratio of mud filtrate and formation water activities.
Clustering that assigns points to a stated number of clusters and iterates the cluster centers until the assignment stops changing.
The view that acts are right or wrong in themselves, judged by universalizable duty.
Kaolinite is a clay mineral with the chemical composition Al2Si2O5(OH)4. It is a layered silicate mineral.
Topography formed where carbonate rock has been dissolved, producing caves, sinkholes and irregular surfaces.
Kelly bushing — the adapter driving the kelly from the rotary table, and the elevation most well depths are referenced to.
A long square or hexagonal steel bar with a hole drilled through the middle, enabling a path for drilling mud to pass through and down the inside of the drill string. The kelly transmits clockwise rotary motion from the rotary table or kelly bushing to the drill string, while allowing the drill string to be lowered or raised during rotation.
The adapter that transmits rotary table torque to the kelly while letting it move vertically.
The condition when the kelly has run out of travel and a new joint must be added before drilling can continue.
The large-diameter high-pressure flexible line carrying mud from the standpipe to the swivel.
A pneumatic device above the kelly that spins it to make up or break out a connection.
A temperature scale with the zero point taken as the absolute zero, about -273°C.
The width of material removed by a cutting process, such as the rock formation removed during core cutting, or the cut or channel made by a saw blade.
Kerogen is a mixture of organic chemical compounds that make up a portion of the organic matter in sedimentary rocks.
The middle distillate used for jet fuel, lighting and heating.
The fraction whose carbon atoms range from C19 to C26, and have boiling points between 315°F and 450°F.
A type of natural circulation reboiler in which vapor and liquid are separated before leaving the reboiler.
A type of reboiler in which the process vapour and liquid are separated before leaving the reboiler.
A non-threaded, rectangular piece of metal fastener that fits into a keyway to prevent parts such as gears, pulleys, or impellers from rotating on a shaft. In electronics, a small tab on a transistor case used for lead identification.
A control whose failure would materially expose the business, so it receives specific assurance.
Generating, distributing, storing and retiring cryptographic keys, where most implementations fail.
A measure chosen because it tracks something the organization intends to manage.
A mechanical stop that limits a valve's rotation to the quarter turn between fully open and fully closed.
A narrow channel worn into the wellbore wall by drillpipe dragging against it at a dogleg, too small for the collars to pass back through.
A wedge-shaped fault block at the apex of a faulted anticline is called a keystone structure.
A machined slot in a shaft or on a part such as a gear, pulley, or clutch that accepts a key.
Finding the terms people actually search for, and how competitive each is.
Flow capacity — the product of permeability and net pay thickness, the quantity a well test actually measures.
An influx of formation fluid into the wellbore, caused by formation pressure exceeding the pressure of the mud column.
To begin deviating a well from vertical at a chosen depth.
The wireline tool deflecting to reach a gas lift valve in its side pocket.
An intentional deviation of a vertical well into a directional path.
To stop a well flowing, by making the hydrostatic pressure of the fluid column exceed the formation pressure.
The high-pressure line from the BOP stack to the rig pumps, through which kill fluid is pumped into a shut-in well.
The pump reserved for circulating kill-weight fluid during well control operations.
Fluid heavy enough that its hydrostatic head at the influx depth exceeds formation pressure and stops the well flowing.
Mud of sufficient density that its hydrostatic pressure at the influx point exceeds the formation pressure and stops the flow.
The SI unit of density, abbreviated kg/m3.
1000 hertz; a unit of frequency.
The SI pressure unit equal to one thousand pascals, symbol kPa; standard atmospheric pressure is about 101 kPa.
One thousand watts.
One kilowatt sustained for an hour, the retail unit of electrical energy.
One thousand watt-hours.
Kinematics is a branch of mechanics involved with how objects move without focusing on what caused the objects to move.
The error in a gradiomanometer reading caused by the fluid moving at different velocities past its two pressure sensors.
The energy of motion; work done by a force along a given displacement.
The integral form of the wave equation, expressing a wavefield at a point as the summed contribution of surrounding points at earlier times.
A migration that sums seismic amplitudes along diffraction traveltime curves, using the integral form of the wave equation.
A fundamental law of electricity stating that at any junction point in a circuit, the current arriving equals the current leaving. In parallel circuits, the sum of the branch currents equals the total current through the circuit.
Kirchhoff's voltage law states that the relationship between the voltage drops around any closed loop in a circuit and the voltage sources in that loop. The total of these two quantities is always equal.
A fundamental law of electricity that applies to parallel circuits. It states that the sum of the branch currents in a parallel bank equals the total current through the circuit.
Klinkenberg found that the permeability of a core sample was not constant, but varied with the gas used to make the measurement as well as with the mean pressure existing in the core at the time of measurement. His investigations indicated that at low mean pressures, the gas molecules are so far apart that they slip through the pore spaces with little friction loss and generate a higher value of permeability.
A sharp metallic noise that results from uncontrolled or premature combustion within a cylinder of an engine.
To remove a phase from a stream by letting it separate out — and the liquid so removed, as from a scrubber after compression and cooling.
A mutual indemnity where each side bears its own people and property losses whoever caused them.
A separation vessel or device that removes condensed liquid from a vapor stream, often using a demister pad. Also called a knockout pot.
A unit of speed equal to one nautical mile per hour, used in marine and air navigation.
A tap joint that includes a knot and is used if the splice is subject to strain or slippage.
A short embedded question confirming a point landed before the material moves on.
A system for capturing and retrieving what the organization knows.
Moving what experienced people know to those who will need it.
Information consisting of concepts, theory, and fundamentals of a job; usually taught more effectively in a classroom than through on-the-job training (OJT).
A classic fractal built by repeatedly replacing the middle third of each line segment with two sides of a triangle.
A piece of equipment in which alkylate is treated with potassium hydroxide (KOH) to remove any fluorides or traces of HF acid from the final product.
The sequence from establishing urgency through to anchoring the change in the culture.
A geostatistical estimator that weights nearby data according to the spatial correlation described by the variogram, minimizing estimation variance.
The coefficients assigned to nearby control points in a kriging estimate, chosen to minimize the variance of the result.
An interface module that mounts inside a standard PC and allows the PC to communicate on Allen-Bradley's Data Highway networks.
A measure of how peaked or flat a frequency distribution is relative to a normal distribution.
The volt-ampere output that a transformer can deliver at rated secondary voltage and rated frequency without exceeding its specified maximum temperature rise.
