73090553
Jun 16, 1976
Mar 7, 1978
SERVICES TO THOSE CONCERNED WITH WELLBORE FLUIDS, PRINCIPALLY TO STUDY THE PROBLEMS ENCOUNTERED IN DRILLING AND WORKING WELLS AND TO RECOMMEND ADDITIVES FOR WELLBORE FLUIDS TO PREVENT LOST CIRCULATION AND TO CONTROL SUCH PROPERTIES AS VISCOSITY, DENSITY AND THIXOTHROPY OF SUCH FLUIDS
Computer and Scientific