Smart rig housekeeping, NOV’s Brandt VSM 300 keeps cuttings under control

On a crowded offshore rig floor, the Brandt VSM 300 from NOV is one of those unglamorous workhorses that quietly decides whether drilling mud stays clean, safe, and efficient. What the triple-deck shaker does, and why drillers still swear by it.

Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-18, 18:20. Details in the imprint.

On a vibrating shaker bay, the Brandt VSM 300 from NOV throws rock cuttings forward while clean drilling fluid slips back into the tank - noisy, relentless, a bit brutal, but essential for any serious rig. The compact triple-deck design aims to squeeze high capacity into a tidy footprint. Mud engineers like it because once tuned, it just runs.

What the VSM 300 actually does

At its core, the Brandt VSM 300 is a high-capacity shale shaker for drilling rigs, designed to separate drilled solids from returning drilling fluid so the mud can be reused instead of dumped and replaced. Its mission is simple but unforgiving: keep up with the pump rate, whatever the formation throws at it.

The shaker uses three screen decks stacked vertically, with coarse scalping on top, primary separation in the middle, and fine finishing on the lower deck. This cascade lets operators run finer screens than on a single-deck unit at similar throughput, which means cleaner mud and better protection for downhole tools.

Triple-deck layout in daily use

In daily rig life, crews notice first how the VSM 300 turns a chaotic mud stream into visually cleaner fluid within a few meters of travel. Cuttings march steadily toward the discharge, while liquid bleeds back through the mesh in thin, even curtains that tell the operator the settings are right.

The three-deck concept also gives drilling teams some flexibility. They can mix screen meshes per deck, for example pairing more aggressive top screens when drilling sticky gumbo with finer lower-deck cloth when chasing extra fluid recovery in expensive oil-based mud.

Strengths that operators like

One convincing strength is capacity in a compact footprint, a real issue on offshore rigs where every square meter is fought over between mud handling, tubular storage, and safety walkways. A VSM 300 bay feels dense but organized rather than sprawling.

Another plus is the relatively even vibration profile across the screen area, which helps avoid dead zones where cuttings simply ride along without being processed. When tuned well, the machine gives a uniform curtain of fluid across the width, a visual sign that screen area is being used efficiently.

Where things can annoy

Of course, the VSM 300 is not a quiet partner. The high-g vibratory motors, steel basket, and constant flow of abrasive cuttings add up to a loud, harsh working soundscape that pushes crews toward hearing protection and short checks instead of long inspections.

Screen changes can also become a chore when the well is throwing out sticky clays. Screens clog, tensioning bolts get caked in dried mud, and the compact triple-deck layout means technicians work in fairly tight spaces, especially on older rig layouts that predate modern ergonomic thinking.

Safety and environmental angle

From an HSE perspective, the shaker plays a quiet but central role in cutting waste volumes. Efficient solids control reduces the amount of contaminated mud that must be transported and treated ashore, which matters for both cost and environmental permit compliance.

Better cuttings dryness at the shaker discharge can also reduce the load on downstream cuttings dryers and centrifuges. That has knock-on effects: lower energy use, less wear, and fewer unplanned shutdowns when the system is designed as a coordinated solids control line.

How it fits into NOV’s toolbox

Within NOV’s broader portfolio, the Brandt VSM 300 sits alongside mud pumps, mixing systems, and downhole tools as one piece of an end-to-end drilling system. The idea is that all components are sized and tuned to one another instead of being pieced together from mixed vendors.

For operators, that can simplify spare-parts logistics and service contracts. One service engineer can often support several NOV systems on the rig, from the shakers to other mud-process equipment, which keeps troubleshooting faster during hectic drilling phases.

Company context and stock reference

NOV, headquartered in Houston, builds equipment for oil and gas drilling, completion, and production, with solids control systems like the Brandt VSM 300 forming a small but essential part of its rig technology offering. Shares of NOV (US67000B1040) trade on the New York Stock Exchange in US dollars.

Key facts on NOV’s Brandt VSM 300

• Product: Brandt VSM 300 shale shaker
• Manufacturer: NOV Inc.
• Category: B2B / Pro drilling equipment
• Launch: In service for several years in land and offshore operations
• RRP / Price: Project-based pricing, typically as part of rig solids control packages
• Availability: Offered globally via NOV’s sales network and project tenders
• Target group: Drilling contractors and operators running land rigs, jack-ups, and offshore platforms
• Highlight / USP: Compact triple-deck shale shaker layout aimed at high capacity and cleaner drilling fluid in limited rig space

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.