Oil and Natural Gas

GEOSEARCH LOGGING INC.

MID-CONTIENT REGION

Log requirements to be on every log before being submitted daily

NOTE: The logs we produce are historical data records of the wells drilled by our clients. Anything pertaining to daily operations or drilling should be documented on the log (ex. fishing, lost circulation, rig repairs,etc). Providing detailed geological and hydrocarbon data to our clients is what makes our services unique and valuable. The mudlogs you produce are key pieces of data used by the explorationist, in conjunction with other data sources, to decide whether to complete a well and what zones; and, if drilling an offset to the well is feasible and it’s placement. Please ensure that all information below is on your log.

← Start of the log: Leave a 40’ buffer zone at the top and bottom of log (ie. If start depth is 6,500 start your depth range @ 6,460). Put well name, type of logging service (Remote, 1-Man, or 2-Man), spud date and start logging date, time, and depth. Be sure to include surface casing info ( size & depth it was set at) @ top of log. Include current bit info; bit number, size, make, model #, & type; also current footage & hrs on bit. Then FILL OUT THE HEADER next. Do not forget to do this. Please start with the correct blank template. If you do use a previous log to start with, don’t forget to change the header first thing. Remember, a legal description of the location must include the section, township, range, AND the COUNTY & STATE. It is your responsibility to find ALL the information that goes on the header.

← Mud Report: Needs to be on the log at least once every 24 hrs. Get the info off the latest mud report provided by the mud man.

Wt., Vis., PV/YP, Gels, WL, pH, Alk, Cl, Ca, Sol, H2O, Oil, & LCM.

← Rig Mechanics: Annotate on logs every 500ft, or when parameters change,

the weight on bit (WOB), revolutions per minute (RPM’s - surface and motor), pump pressure (PP), and pump...