WELL SCREEN ASSEMBLY

A method and apparatus for assembling a wellscreen (50) onto a perforated base pipe (52) are provided. The wellscreen defines a tubular body which is suitable for subterranean use in oil, gas, and water wells. In accordance with the present invention, the wellscreen first defines a perforated base p...

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Bibliographic Details
Main Author SETTERBERG, JOHN RICHARD, JR
Format Patent
LanguageEnglish
French
Published 11.06.2013
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:A method and apparatus for assembling a wellscreen (50) onto a perforated base pipe (52) are provided. The wellscreen defines a tubular body which is suitable for subterranean use in oil, gas, and water wells. In accordance with the present invention, the wellscreen first defines a perforated base pipe having termination members (66) at its opposite ends. Disposed on each termination member is a continuous helical, step-tiered surface (72). The helical surface serves as a support surface for a layer of filtering material (74) which is rolled around the base pipe. The filtering material is pre-cut to a correct diameter and bias to match the diameters and bias of the spiralling termination support surfaces. The filtering material is connected to the rings to form a substantial seal on the opposite ends. A protective, perforated outer shroud is optionally disposed around the filtering media as well.
Bibliography:Application Number: CA20022663866