Seamless woven wire sintered well screen

Abstract

The product is a seamless sintered woven wire well screen assembly concentrically mounted on a perforated or slotted mandrel. The seamless sintered woven wire screen can either be used as a component screen apparatus or as a primary screen filter element. In use as a component screen application, the seamless sintered woven wire screen provides a filter reinforcement to a primary filter, or filter housing or shroud device that protects the component screen from physical or mechanical damage during installation. In this configuration two (2) usually different and separate filter devices are combined. In use as a primary screen element no other means other than the seamless woven wire screen is involved in prohibiting unconsolidated sand production from the wellbore. The well screen relates generally to completing downhole wells, and in particular to well screens for filtering unconsolidated material out of inflowing well fluid in water, oil, gas, and recovery wells.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this patent is that by using a seamless sintered well screen instead of traditional methods like porous powdered screens or seam welded laminates, it can better prevent the influx of sand fine particles during oil drilling operations. This results in a higher reliability for ensuring safe and efficient well completion procedures.

Problems solved by technology

The technical problem addressed in this patent is related to the limitations of existing designs for downhole installation of filtering equipment. Specifically, there are issues with clogging caused by uneven pore spacing, difficulty in achieving consistent filter capabilities across different parts of the device, and potential performance degradation from improper joining methods like seam welding. There is also an issue with controlling the size of filter openings when using resistance welding techniques. These challenges make it difficult to effectively deploy efficient and reliable filtering devices in complex oil and gas environments.

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