Halliburton Energy Services, Inc.

How Jiun Irvin Yuen

Hock Soon Tiew

Simon Whye Kwong Wai

Shiao Loong Tang

Simon Shye Kwong Wai

Kar Ki Andrew Loh

A method, that includes obtaining a calibration curve, reading a voltage from a rotary potentiometer, and calculating an extension length of an actuator shaft, using the voltage and the calibration curve, where a potentiometer shaft, of the rotary potentiometer, is coupled to a potentiometer gearbox, where the potentiometer gearbox is coupled to a motor, and where the motor is coupled to the actuator shaft.

Absolute linear position for downhole tool using rotary potentiometer

A downhole tractor drive module is provided. The downhole tractor drive module includes a first bevel gearbox, a first drive arm coupled to the first bevel gearbox, a connecting shaft, a second bevel gearbox, and a second drive arm coupled to the second bevel gearbox. The first bevel gearbox can include an input shaft in communication with the motor, a first output shaft, and a second output shaft coupled to a connecting shaft input connection. The second bevel gearbox can have an input shaft coupled to a connecting shaft output connection and a first output shaft.

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Singapore, Singapore

How Jiun Irvin Yuen