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Title Oil recovery mining apparatus
Creator/Author Ayler, M.F. ; Vranesh, G.
Publication Date1986 Jun 17
OSTI IdentifierOSTI ID: 5560260
Report Number(s)US 4595239
Resource TypePatent
Resource RelationPat. File: Filed date 23 Mar 1984
Subject020300 -- Petroleum-- Drilling & Production; OIL WELLS-- BLOWOUT PREVENTERS;OIL WELLS-- DRILL PIPES;OIL WELLS-- VALVES; CEMENTING;CUTTINGS REMOVAL;DRAINAGE;DRILLING FLUIDS;FLUID FLOW;MINING;PIPE FITTINGS;WELL DRILLING
Related SubjectCONTROL EQUIPMENT;DRILLING;DRILLING EQUIPMENT;EQUIPMENT;FLOW REGULATORS;FLUIDS;PIPES;REMOVAL;WELLS
Description/Abstract A fluid and cuttings control assembly is described for gravity-type drain oil wells used in oil well mining comprising a stop valve mounted on a drainage oil well pipe casement for securement to a firmly anchored collar pipe providing the outer linear for an access opening to a gravity-type drainage oil well.^The stop valve and pipe casement have an inside diameter opening with the stop valve in the open condition sufficient to accommodate the outside diameter for a gravity-type drainage oil well production conductor pipe and drill string-together with appended stop valves, couplings and the like, upper and lower blow-out preventers secured to the casement below the stop valve and having internal diameters while open sufficient to accommodate the external diameter of the gravity-type drainage oil well production conductor pipe and drill string together with fittings, and upper drain vent control valve located in a first drain vent branch pipeline connected to an opening in the casement located between the stop valve and above the upper blow-out preventer for venting the space within the casement between the stop valve and the upper blow-out preventer with the upper blow-out preventer in the closed blow-out preventing condition, and a lower drain vent control valve located in a second drain vent branch pipeline connected to an opening in the casement located intermediate the upper and lower blow-out preventers for venting the space within the casement between the upper and lower blow-out preventers with the upper and lower blow-out preventers in the closed blow-out preventing condition.
Country of PublicationUnited States
LanguageEnglish
FormatPages: v
RightsOil Mining Corp., Golden, CO
System Entry Date2001 May 13

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