Job Description:

• 1) Inspects threads on joints of steel casings, tubings, drillpipes, and other tubular oil well equipment to detect defects and to determine conformance to specified tolerances in taper, lead, and threads per inch, using precision gauges and instruments: Measures machined threads and outside diameter of pipes to determine thread size, taper, threads per inch, and size of pipe to ensure clearance for lowering pipe into well, using thread gauge and micrometer.

• 2) Determines whether combinations of thread elements will form joints capable of withstanding weight of entire string of piping in well and of preventing entrance of outside fluids or gases, applying knowledge of standard and obsolete thread forms.