SPECIAL REPORT: Aluminum tubulars make efficient drillstring

This article examines the difference in axial stresses of aluminum and steel tubulars during drilling and concludes that aluminum tubulars can reduce cost and extend the reach of drilling operations.The cost of drilling depends on the size and weight of the equipment employed to drill the well. Density of tubulars is an important parameter that has significant impact on the capacity and size of drilling equipment required. It may be possible to reduce drilling costs by employing oil well tubulars made of materials lighter than steel.It is well known that aluminum is widely available and less expensive than steel. So for the purpose of reducing drilling costs, why not use aluminum tubulars...

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