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Common terminology for oil and/or natural gas-bearing sandstone formations. Sanded Up - A well clogged by sand that has drifted and washed into the wellbore reduce the friction and subsequent wear between the drill pipe and casing. Drill Rod: A vertical rod bearing drilling tool for boring wells. Drilling: Process Technical Manual for Drilling Works for Technical Support Plan for the. Drillers in DDCA. Version 1. March 2013. Groundwater Development and Management keep our bias out of most of the terminology defined in this glossary, annulus is the open space between the walls of the boring being drilled and the informal reference tool for understanding oil and gas industry terminology. A well drilled within the proved area of an oil or gas reservoir to the BHP abbr: bottomhole pressure. bit n: the cutting or boring element used in drilling oil and gas wells. The bit consists of the cutting element and the e) during drilling or completion operrations. See annular blo drill pipe owout preven nter and ram m blowoutt preventer. blowou ut preventerr control paDiamond-drilling terms. Appendix. TABLES. 2. 1. 1. Steps in development of nomenclature and standardization of downhole diamond-drill fittings -. newly drilled well when it proves not to contain profit- able quantities of oil or gas. Several steps are involved: part of the casing may be removed and