Drilling

Drilling

Of or relating to the penetration of the Earth's surface in order to extract petroleum oil.

Industry: Oil & gas

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Drilling

twist-off

Oil & gas; Drilling

Parting or breaking of the drillstring downhole due to fatigue or excessive torque.

conformable

Oil & gas; Drilling

Parallel strata that have undergone a similar geologic history, deposited in succession without interruption.

outside diameter

Oil & gas; Drilling

Outside or outer diameter. Casing and tubing are commonly described in terms of inside diameter (ID) and outside diameter.

Organic material having low solubility. Resins are usually large and complex polymeric molecules with noncrystalline structure and no distinct melting point or other definitive properties. Resins are ...

humic acid

Oil & gas; Drilling

Organic carboxylic acids of complex molecular structure (aromatic and phenolic) that comprise 10 to 90% of lignite. Humic acids in lignite react with caustic ingredients (NaOH and KOH) in mud. The ...

pipe rack

Oil & gas; Drilling

Onshore, two elevated truss-like structures having triangular cross sections. The pipe rack supports drillpipe, drill collars or casing above the ground. These structures are used in pairs located ...

aromatic content test

Oil & gas; Drilling

One of two quantitative analysis procedures for measuring aromatic content of base oils for use in oil mud as proscribed by the API. Results of the two aromatic content tests may differ because of ...