Pre packed sand screen contains perforated base pipe, inner and outer screen jackets and graded sand between the jackets. It is a modification of wire wrapped screen which is used in well sorted sand or stand-alone completion. Graded sand, with or without resin coating, is considered as a filter for reservoir particles.
Pre Packed Sand Screen
Wire wrapped pre packed sand control screen is used in wells where conventional gravel packing is not feasible or economical. The thickness of gravel layer can be varied to meet special requirement.
The prepack design resists erosion where voids may exist in the pack. The prepack sand, typically resin coated and consolidated, can be provided in regular resieved sand varieties. All prepack screens are packed separately from the basepipe. This allows for inspection of the complete jacket for voids.
pre-packed screen providing sand control when conventional gravel packing is not feasible or economical. They are commonly used gas wells and gas storages and in cased or open-hole horizontal wells and also at the top of high pressure gravel pack completions. Pre-packed Well Screen is designed for reduced OD/ID ratio running operations.
Horizontal gravel pack
Prepacked screens are commonly used in cased or open-hole horizontal wells and also at the top of high pressure gravel pack completions.
Ruitai offers several prepack screen designs to suit your sand control needs including enhanced low profile, premium low profile, and dual-screen. The prepack design resists erosion where voids may exist in the pack. The prepack sand, typically resin coated and consolidated, can be provided in regular resieved sand varieties.
Types of Pre-packed Well Screen
● Enhanced Low Profile (ELP) and Premium Low Profile (PLP) Prepack Screens — These screens can be used in gravel-packed and non-gravel packed wells. They incorporate a strong inner wire wrap layer made from round wire and a keystone-shaped outer wire wrap layer.
● Dual-Screen Prepack Screens — When gravel packing is not feasible, dual-screen prepack screens provide built-in sand control. They incorporate a keystone-shaped wire for the inner and outer wire wraps.
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