INSTRUMENT DYNAMIC CONTROLLER (IDC) TO BE USED WITH A DOWNHOLE TRACTOR IN OIL AND GAS INDUSTRIES. THE PRODUCT IS DESIGNED TO PREVENT THE ROTATION OF A TOOL STRING THAT IS BEING ORIENTATED, OR WHEN A DOWNHOLE TRACTOR IS BEING RUN IN DEVATIONS OF GREATER THAN 90 DEGREES, TO PREVENT IT FROM RUNNING BACK OVER THE CABLE WHEN THE TRACTOR IS STOPPED. DIFFERENT HI-GRIP PADS/CONFIGURATIONS ARE AVAILABLE TO PROVIDE RESISTANCE AGAINST UPHOLE AND DOWNHOLE MOVEMENT OR ANGULAR ROTATION. THE INSTRUMENT DYNAMIC CONTROLLER IS RUN INTO THE WELLBORE IN THE CLOSED POSITION AND OPENED WHEN ON DEPTH. THE TOOL CAN BE OPENED AND CLOSED MULTIPLE TIMES WHILE IN HOLE AND THE ANCHORING FORCE CAN BE CONTROLLED FROM THE SURFACE BY THE ENGINEER. THE TOOL CAN BE RUN IN COMBINATION WITH OTHER BALLISTIC DELIVERY SYSTEM TOOLS AND WITH CLIENT SPECIFIC TOOLS.

CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING:- GENERAL INTERPRETATIVE RULES (GIR)S GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 8479 FOR MACHINES AND MECHANICAL APPLIANCES HAVING INDIVIDUAL FUNCTIONS, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER. GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING LEVEL 8479 90 - PARTS CN CODE 847990 70 OTHER THAN PARTS OF MACHINES OF SUBHEADING 8479 89 70 TARIC 84799070 99 OTHER THAN ELSEWHERE SPECIFIED. ALSO CLASSIFIED IN ACCORDANCE WITH:- NOTE 2 (B) TO SECTION XVI HSENS (I) (7)