Case cementing method and system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5323858
SERIAL NO

07977951

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Abstract

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A system for cementing well casing in a bore hole utilizes only top and bottom cementing plugs. The well casing has on its lower end, an inwardly extending lip to engage a latch on the lower portion of the bottom cementing plug. The bottom cementing plug has a through passage that is covered on the top by a diaphragm and on the bottom by another diaphragm.

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Patent Owner(s)

Patent OwnerAddress
ATLANTIC RICHFIELD COMPANY515 SOUTH FLOWER STREET LOS ANGELES CALIFORNIA 90071 UNITED STATES OF AMERICA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jones, Richard R Allen, TX 17 626
Taylor, Kenneth R Allen, TX 15 295

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