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The AAPG/Datapages Combined Publications Database
West Texas Geological Society
Abstract
Midland Basin: Deep SWD Wells
Abstract
Water disposal in the Midland basin through deep injection wells has increased in response to historic levels of horizontal drilling and production activity. Energen drilled 9 Ellenburger / Granite Wash SWD wells in order to provide increased water disposal capacity and reduce its reliance on shallower horizons (primarily the San Andres).
A start-to-finish look at Energen’s experience identifies key steps along the path from well inception to final water disposal. In addition to the geological considerations; regulatory, drilling, completion, and facilities requirements are examined.
Many geologists came to the Midland basin during the shale boom and most typically work shallower, horizontal production intervals (including the Cline, Wolfcamp, and Spraberry). Because of the need for deep SWD injection, a working knowledge of the lower Paleozoic and Precambrian sections of the Midland basin is increasingly beneficial. A review of the deep stratigraphic section is coupled with log evaluation of Energen’s wells.
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