دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: The operation of a round pulling out the hole and running due to bit change or other reasons.

n: a sub run below a dual or triple packer to permit the correct space-out. See space-out.

n: a large, sloping sedimentary deposit at the mouth of a canyon, laid down by intermittently flowing water, especially in arid climates, and composed of gravel and sand. The deposit tends to be coarse and unworked, with angular, poorly sorted grains in thin, overlapping sheets. A line of fans may eventually coalesce into an apron that grows broader and higher as the slopes above are eroded away.

land counterpart of a river delta. Characteristic of sediments that have been transported by a fast moving stream then dropped out of the flow as the stream velocity drops as it spreads out. Typical of zones of heavy water runoff such as found at the base

n: See below packer bourdon tube case.

n: the part of a groove on the drawworks drum that changes direction. Grooves run parallel to each other, except in the angle-control section, where each groove is machined at a slight angle. This angled part of the groove causes the wire rope being spooled onto the drum to change direction so that the next wrap of rope on the drum lies in between the wraps of rope already on the drum. Also called a crossover section.

authorized over-run.

n: See above packer bourdon tube case.

n: a well drilled to confirm and evaluate the presence of hydrocarbons in a reservoir that has been found by a wildcat well.

additional wells drilled after a discovery, to confirm the size of a hydrocarbon deposit. Normally used to run buildup tests, drill stem tests, top and bottom of formation, gather core or fluid samples or other evaluations.

a steep sided gulley in arid areas that carries runoff, usually at high velocities, for very short times after a rain.

n: This schlumberger module provides direct measurements of wellbore fluid resistivity and temperature, also cable tension below the toolstring head. Useful to run in poor hole condition;should allow differentiation of differential sticking and keyseat stic