Wells – With below and above ground modification – Eduction pump or plunger in well
Patent
1976-08-23
1977-08-02
Leppink, James A.
Wells
With below and above ground modification
Eduction pump or plunger in well
61 5352, 166290, E21B 33035
Patent
active
040390250
ABSTRACT:
A structure or template forms a tubular support structure for subsea equipment used in drilling and producing offshore oil and/or gas wells. The template contains production manifolding, remote and safety shut-in control, pump-separator, and pipeline connector subsystems. Certain of the structural tubes are segregated to form compartmented ballast chambers capable of being selectively flooded and dewatered. Certain other structural tubes form piling sleeves. The truss or framework of structural tubes include vertical and horizontal tubes, the latter forming circumferential members as well as interstitial supports. The uppermost of the circumferential members or "ring" also functions as a fender to protect the equipment within the template. The template is made negatively buoyant upon launch by flooding the compartmented ballast chambers, keelhauled (swung to a position underneath the keel of the drilling vessel), and then lowered to the subsea floor. Once it is positioned on the sea floor the subsea structure is oriented, pile founded and leveled. The template functions as a drilling and casing guide frame ensuring that drilled wells are connectable to the preinstalled manifolding. The template is recoverable by severing the piles and deballasting the compartmented ballast chambers.
REFERENCES:
patent: 2291371 (1942-07-01), Buchanan et al.
patent: 3525224 (1970-08-01), Bardgette
patent: 3754380 (1973-08-01), McMinn et al.
patent: 3877520 (1975-04-01), Putnam
patent: 3920075 (1975-11-01), Braddick et al.
Burkhardt Joseph A.
Loth William D.
Pattison Martin O.
Exxon Production Research Company
Leppink James A.
Schneider John S.
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