Variants of steam-assisted gravity drainage (SAGD) for heavy-oil recovery include crosswell SAGD, single-well SAGD, and horizontal alternating steam drive. The main goal of these modifications is to increase the efficiency of the SAGD process and control steam-chamber development. This paper shares experience gained in the Ashalchinskoye heavy-oil field with a two-wellhead SAGD modification. As a result of a pilot for this technology in Russia, the accumulated production of three pairs of these wells is greater than 200,000 tons.
Heavy-Oil Development in Tatarstan, Russia
The depletion of the traditional oil reserves of the Republic of Tatarstan makes the development of hard-to-recover hydrocarbon reserves an urgent matter.
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