Oil recovery mining apparatus

Patent · Tue Jun 17 04:00:00 EDT 1986

OSTI ID:5560260

Ayler, M F; Vranesh, G

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.

• Assignee: Oil Mining Corp., Golden, CO
• Patent Number(s): US 4595239
• OSTI ID: 5560260
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
BLOWOUT PREVENTERS
CEMENTING
CONTROL EQUIPMENT
CUTTINGS REMOVAL
DRAINAGE
DRILL PIPES
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
MINING
OIL WELLS
PIPE FITTINGS
PIPES
REMOVAL
VALVES
WELL DRILLING
WELLS