The DST Well: Its Importance and Lessons Learnedby David M. Hite, ARCO Alaska Inc, Anchorage, AK, USA,
Abstract: A Deep Stratigraphic Test (DST) well is a unique source of stratigraphic information; and provides critical data on drilling conditions, logistics, materials; and subsurface conditions in unexplored frontier areas. DST wells are drilled in locations to gain maximum stratigraphic information but minimize the chance of encountering hydrocarbons. Geoscience drilling, engineering, and logistical programs are designed to evaluate parameters which relate to hydrocarbon potential in a variety of scenarios. This paper reports on DSTR well programs operated by ARCO Alaska, Inc. in the Bering Sea, Alaska. These wells spanned a period of eight years (1976-83) and represented a sustained effort by the petroleum industry to acquire a geologic data base upon which to build a sound basis for the evaluation of future lease sales in the area.
Subject Headings: Drilling | Stratigraphy | Wells (oil and gas) | Wells (water) | Hydrocarbons | Information management | North America | Alaska | United States | Bering Sea
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