mudlogger การใช้

• Such a " mudlogger " is known to be sitting on the rig.
• More data may be obtained from the mudlogger, who analyzes the drill cuttings and the rock formation thicknesses.
• When an oil well has been tapped, a geologist ( known on the rig as the " mudlogger " ) will note its presence.
• The drilling mud which is analyzed for hydrocarbon gases, by use of a gas chromatograph, contains drill bit cuttings which are visually evaluated by a mudlogger and then described in the mud log.
• Determining the type of rock being drilled at any one time is a matter of knowing the'lag time'between a chip being cut by the bit and the time it reaches the surface where it is then examined by the wellsite geologist ( or mudlogger as they are sometimes called ).
• The total gas, chromatograph record, lithological sample, pore pressure, shale density, D-exponent, etc . ( all lagged parameters because they are circulated up to the surface from the bit ) are plotted along with surface parameters such as rate of penetration ( ROP ), Weight On Bit ( WOB ), rotation per minute etc . on the mudlog which serve as a tool for the mudlogger, drilling engineers, mud engineers, and other service personnel charged with drilling and producing the well.