Шламометаллоуловитель – вспомогательный инструмент, защищающий от стружки, образованной в результате фрезеровочных и буровых операций, которые слишком тяжелы для циркуляции из-за осадков на дне скважины.

Overview

The Threaded Cup Junk Sub is an ac-cessory tool that prevents cuttings from milling or drilling operations that are too heavy to be circulated from settling at the bottom of the hole. The removable threaded cup design allows easy inspection of the body. Damaged cups can easily be removed and replaced.

Construction

The Threaded Cup Junk Sub is manu-factured from high strength, heat-treated alloy steel to withstand wear.

The tool’s strength is further enhanced by cup support ribs that are machined from the main body of the tool, not welded. These heavy-duty ribs support the cup and guide the tool through tight places and prevent it from being crushed.

The standard assembly has a 20-inch-deep cup. Standard (20-inch) and long (30-inch) cup lengths are available.

Assembly

Threaded cup junk subs are placed directly above the mill or drill bit. For severe milling jobs, it is customary to run two or three junk subs in tandem above the mill to increase cutting removal capacity and provide extra stabilization for the mill.

Operation

Threaded cup junk subs can be run in an open hole or inside casing. When running inside casing, hard-faced pads dressed to the same O.D. as the mill or bit should be used.

When ordering, please specify:

(1) Complete assembly number

(2) Size and type of connections

(3) Cup length

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