It was the first computerized unmanned system in the market, and is still the market leader. Designed to automatically determine basic mudlogging data, it is ideal for wells where full mudlogging is not warranted, such as development wells. A computer controlled dilution system allows the Geologger to measure total gas up to 100 percent by volume. The automatic dilution system means that the total gas is always measured by the same type of sensor, avoiding the problems associated with dual detector systems. The user has several alarms available that indicate high and low penetration rates, significant gas increases and drilled depths.
Operational alarms alert the user of plugged gas lines, power failures and sensor problems.
Rate of penetration and lagged gas readings can be output to a portable computer for database and plotting on geological striplog programs. The database can then be incorporated into larger databases containing offset wells. Up to 1500 meters of information can be buffered by the Geologger between updates. Rate of penetration is automatically calculated and plotted for each meter. Rig status is constantly printed to screen and on the hardcopy.