CONTENTS TABLE OF
Introduction to Rotary Steerable System ...............................................................10
RST BHA Design Theory.......................................................................................10 D-Tech Functionality.............................................................................................10 D-Tech TFA ..........................................................................................................11 D-Tech RST Components ...................................................................................11 Collar ...................................................................................................................12 Stabilizer ..............................................................................................................12 Steering Body ......................................................................................................12 Control Unit (CU) .................................................................................................12 Control Unit Chassis.............................................................................................12 Turbine & Generator Assembly.............................................................................13 Motor & Valve Assembly.......................................................................................13 Pre-Run Information Required .............................................................................13 Motor Setup..........................................................................................................14 Software ..............................................................................................................14 Bit Setup...............................................................................................................15 TFA (Total Flow Area) ...........................................................................................16 TFA Calculator .....................................................................................................17 Using the TFA Calculator......................................................................................17 Using the TFA Calculator Input Data (Excel) .......................................................18 Using the TFA Calculator Output Data (Excel) ....................................................19 Flow Restrictors....................................................................................................20 WITS Decoder .....................................................................................................21
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