Oil anchor

Details Oil anchor Oil anchor

2006-02-21

2006-02-21

Bagnell, David (Department: 3672)

Wells

With eduction pump or plunger

Having liquid-gas separator

C166S265000, C166S372000

Reexamination Certificate

active

07000694

ABSTRACT:
This invention relates to apparatus and methods used in the production of petroleum. The apparatus and methods maintain an amount of oil on oil well casing perforations for improved petroleum production. The apparatus for the production of petroleum includes: a pump intake tube having an opening, an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and vent holes in the oil anchor above the opening of the pump intake tube, a casing generally encircling the oil anchor, and perforations in the casing that are below the opening of the pump intake tube and are above the open base of the oil anchor. The method of petroleum production includes providing a pump intake tube having an opening, providing an oil anchor generally encircling the pump intake tube, the oil anchor having an open base and locating vent holes in the oil anchor above the opening of the pump intake tube, providing a casing generally encircling the oil anchor, and locating perforations in the casing below the opening of the pump intake tube and above the open base of the oil anchor, and pumping a produced fluid comprising petroleum.

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