Well logging with borehole effect compensation and including memory storage of borehole measurements

Claim 1

APPARATUS TO DETERMINE THE VALUE OF A PHYSICAL CHARACTERISTIC OF EARTH MATTER SURROUNDING A FLUID CONTAINING WELL HOLE, SAID APPARATUS COMPRISING SENSING MEANS ADAPTED TO BE PLACED IN SAID HOLE TO DETECT SUCH CHARACTERISTIC WITHIN A LOCALIZED REGION EXTENDING FROM BELOW TO ABOVE SAID MEANS TO INCLUDE A LIMITED LENGTH OF SAID HOLE AND EARTH MATTER ADJACENT SAID LIMITED LENGTH OF SAID HOLE, SAID SENSING MEANS BEING RESPONSIVE TO SUCH CHARACTERISTIC TO REPRESENT THE SAME BY A FIRST SIGNAL HAVING WANTED AND UNWANTED COMPONENTS WHICH ARE RESPECTIVELY DERIVED FROM THE EARTH MATTER IN SAID REGION AND THE FLUID CONTAINED WITHIN SAID LIMITED LENGTH OF SAID HOLE, MEANS TO PROVIDE A RESPECTIVE INDICATION OF HOLE WIDTH AT EACH OF A PLURALITY OF POINTS WITHIN SAID LIMITED LENGTH OF SAID HOLE, MEANS COUPLED TO SAID INDICATION PROVIDING MEANS TO COMBINE SAID INDICATIONS TO PRODUCE A SECOND SIGNAL REPRESENTATIVE TO SAID UNWANTED COMPONENT, AND MEANS TO COMBINE SAID FIRST SIGNAL WITH SAID SECOND SIGNAL TO PRODUCE A MODIFIED FIRST SIGNAL HAVING A REDUCED AMOUNT OF SAID UNWANTED COMPONENT.