Parametric Drilling

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Parametric Drilling

 

the sinking of boreholes in oil-and gas-bearing regions to obtain the geological and geophysical parameters required for prospecting.

Parametric drilling is an integral part of the first stage of prospecting. Borehole locations are selected on the basis of regional geological and geophysical research data. The holes are usually bored to depths of 3–5 km; sometimes they are bored to more than 7 km. Core samples are taken from 10–20 percent of the total borehole depth. They are used to determine physical parameters, such as reflectivity, refractivity, and density and electrical, magnetic, and acoustic properties. They also reveal such data as the composition of rocks and the precise location of stratigraphic boundaries.

Parametric drilling and other types of regional exploration reveal the details of the geological structure of the earth’s crust and the zones likely to contain accumulations of oil, gas, and other minerals. Such tests largely determine the course of further prospecting.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The company's next step, depending on how the Ministry of Energy and Water decides to move forward, would be to conduct parametric drilling. The drilling aims to establish the precise boundaries of rock layers and as Jane points out, "serve as calibration points for seismic and non-seismic" surveying in the future.
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