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Results for “DRILLING”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 595 records · Page 33

Fluid driven drilling motor

A motor assembly is disclosed that includes a vane motor coupled to an output shaft by a drive section. The drive section includes hammers that engage the output shaft to provide improved torque.

03 NATURAL GAS↗

Composite drill pipe and method for forming same

A composite torque pipe to metal fitting joint including concentric inner and outer shells formed with respective smooth annular surfaces projecting distally to form an annulus of a predetermined configuration for receipt of a composite connector ring of the predetermined configuration.

42 ENGINEERING↗