drilling today drilling rigs
The Mining, Drilling & Earth Moving Equipment drilling rigs drilling rigs
drilling today downthehole drilling rigs drilling rigs
 
» Home

Foremost Mobile

Foremost Vehicles - Introduction & History

Since 1965, Foremost Industries has been designing, manufacturing and marketing high-mobility all-terrain wheeled and tracked vehicles used to transport heavy loads where there are no roads.

Foremost offers a variety of tracked and wheeled models, with payload capacities from 10 to 40 tons. Tracked models have wide, flexible d-dent or flat tracks for exceptional traction and low ground pressure in deep snow, swamp or muskeg. Wheeled models are equipped with large high-flotation terra tires, suitable for traversing packed snow, mud or desert environments. All Foremost vehicles are manufactured with heavy-duty drive train and suspension components for long-life operation. Designs provide for high approach and departure angles, deep fording ability and the ability to traverse steep slopes.

Foremost vehicles are most commonly used for geophysical exploration, oil field transportation and logistics, oil pipeline construction & repair, utility construction & repair, personnel transport, and tourism. Vehicle decks can be setup with a variety of equipment such as excavators, aerial lift buckets, welders, seismic recorder shacks, personnel carriers, water & fuel tanks, and drills.

Over the years, Foremost vehicles have earned global recognition for durability and reliable performance in extreme operating conditions. Today, there are more than 2,000 Foremost vehicles working in over 40 countries worldwide, from Northern Canada, to the deserts of Saudi Arabia, the rainforests of South America, the frigid cold of Antarctica and the deep muskeg of the former Soviet Union. Count on Foremost vehicles to move your equipment, supplies and personnel efficiently and dependably.

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
Overview of the Dual Rotary Method

Overview of the Dual Rotary Method

The first Dual Rotary drill was manufactured by Barber Industries in 1979. The technology was acquired by Foremost in 1993. Over the years, Foremost has refined and expanded the Dual Rotary drill lineup adding new models and features to improve functionality and broaden the range of applications.

Foremost Dual Rotary drills feature two rotary drives, including a unique lower rotary drive that is used to advance steel casing through unconsolidated overburden such as sand, gravel, glacial till and boulders. The lower drive feeds and rotates the casing independently of the top drive. The casing is held securely in the lower drive by a set of power-operated jaws. A carbide-studded casing shoe, welded to the casing bottom, cuts through the overburden. Once the desired casing depth is reached, the DR continues drilling open-hole like a conventional top drive drill. There is no need to trip out or change tools when transitioning to open-hole drilling.

The independent rotary top drive simultaneously handles a drill string, which can be equipped with a down-the-hole hammer, tri-cone or drag bit. Cuttings are typically evacuated with air, but Foremost DR drills can also be configured with pumps for mud or flooded reverse circulation drilling.

The upper and lower rotary drives feed independently on separate hydraulic cylinders. This means that the bit position can vary in relation to the casing shoe. In most situations, the bit is advanced slightly ahead of the casing for best penetration rates. In heaving formations, or at times when it is desirable to obtain a clean sample of the formation, the casing can be advanced ahead of the drill bit.

Over the years, the Dual Rotary method has proven very effective for advancing steel casing in difficult unconsolidated overburden. In addition to the primary benefit of effective penetration, the rotation of the casing results in very straight holes and casing can be easily extracted using the lower drive, which is useful in well abandonment applications and for exposing well screens.

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
Foremost Exploration Series Reverse Circulation Drilling Rigs

Foremost Exploration Series Reverse Circulation Drilling Rigs - Introduction

Foremost sets the standard for off-road exploration drills. Foremost's Exploration Series Reverse Circulation drills are flexible, economical to operate and have low environmental impact. All Exploration Series rigs feature:

Hydraulic breakout wrenches
A top rotary drive with tip out ability
On board pipe rack
0° - 45° angle drilling

Available models include wheeled and tracked specifications. The Explorer and Prospector W750 feature high flotation terra tires for on and off-road exploration, while the Discoverer MPD features a flat track system for climbing severe slopes and grades. Count on Foremost for industry-leading performance and proven reliability.

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
Foremost Mining, Drill & Auger Tooling

Foremost Mining, Drill & Auger Tooling - Introduction

Foremost drilling tools help maximize drilling productivity and uptime in various applications. Products such as Foremost Rotary Deck Bushingsand Reverse Circulation Drill Pipe are precision manufactured using high-grade materials. These reliable and durable products provide an excellent return on investment.

Foremost drilling tools are also designed and engineered for ease of use, while also providing maximum efficiency and safety on the job.

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
Foremost Oilfield Products

Foremost Oilfield Products - Introduction & History

To many, Foremost is best known as a manufacturer of heavy-duty, off-road tracked and wheeled vehicles. Since its inception in 1965, Foremost has manufactured vehicles like theNodwell 110Chieftain C Delta 3Commander C and Husky 8 to move people, equipment and supplies through snow, sand, muskeg and swamps throughout the oil & gas industry.

Over the years, however, Foremost has diversified both through acquisition and new product development. This diversification has seen Foremost become an expert in the design and manufacture of drilling rigs for a broad range of applications.

Today, Foremost offers many quality drilling rigs and components to the oil & gas industry. In some cases, these are standard products made to stock. In others, the products are engineered to order. Since 1999, for example, Foremost has worked with a number of clients to develop coiled tubing rigs (CTR's) for production drilling, each one a different and unique design build in accordance with customer specifications. Foremost is now the leader in providing mobile CT drilling rigs.

Our strength is in the ability to custom engineer and manufacture to exceed customer expectations. Foremost designs and manufactures hybrid coiled tubing drilling units, shallow oil & gas drilling rigs, support vehicles, top drive systems, pipe handling systems and drilling consumables.

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
Mining Tooling: Reverse Circulation Drill Pipe

Mining Tooling: Reverse Circulation Drill Pipe

Reverse circulation (RC) drill pipe is a dual wall pipe used for uncontaminated, representative and continuous samples. It is also used to reduce air requirements and maintain uphole velocity in larger diameter drilling applications. RC Inlet air passes between the inner tube and outer barrel. Cuttings are evacuated through the center tube.

Foremost manufactures a complete range of reverse circulation drill pipe and accessories including air swivels, saver subs, bit subs, interchanges, wear sleeves, blow-down and blow-back subs and open center bits.

Foremost's patented inner barrel suspension and retention system eliminates problems arising from the transfer of vibration and torque loads applied to the outer pipe. The inner pipe is suspended within the outer barrel and is relatively unstressed. The o-ring retainers absorb percussion forces and allow for replacement of the inner barrel in the field if required.

To suit customer requirements, Foremost offers various drill pipe configurations, with or without connector tubes:

Concealed Inner Pipe (CIP) - Incorporates a dual tube design, using both an outer barrel and a concealed inner tube. Connector tubes are not required when using CIP drill pipe. The inner tubes are sealed when the outer barrels are threaded together.

Connector Tube Pipe (CTP) - A dual tube design, incorporating an outer barrel and a concealed inner tube. Connector tubes are required when using CTP and are manually connected.

Protruding Inner Pipe (PIP) - A dual tube design using both an outer barrel and an inner tube, which protrudes from the pin tool joint. Connector tubes are not required when using PIP drill pipe. The inner tubes are sealed when the outer barrels are threaded together.

RC Hammer Pipe - The inner tube protrudes from the box tool joint and connector tubes are not required. The inner tubes are sealed when the outer barrels are threaded together.

Foremost uses advanced production equipment with controlled temperature welding and stress relief of tool joints. Material specifications and welding technique allow for the maximum possible wall thickness and strength of pipe in the tool joint area. Foremost drill pipe passes through extensive quality control inspections prior to customer delivery.

Custom lengths are available upon request.

Quick Refernce Guide

Series

Diameter

Length

Weight

CIP

4 in
(102 mm)

10 ft
(3 m)

146 lbs
(66 kg)

4-1/2 in
(144 mm)

20 ft
(6 m)

421 lbs
(191 kg)

9-5/8 in
(245 mm)

20 ft
(6 m)

1,347 lbs
(611 kg)

10-3/4 in
(273 mm)

20 ft
(6 m)

1,760 lbs
(798 kg)

CTP

4-1/2 in
(114 mm)

20 ft
(6 m)

417 lbs
(189 kg)

5-1/2 in
(140 mm)

20 ft
(6 m)

548 lbs
(249 kg)

7 in
(178 mm)

20 ft
(6 m)

804 lbs
(365 kg)

PIP

3-3/4 in
(95 mm)

10 ft
(3 m)

124 lbs
(56 kg)

5-1/2 in
(140 mm)

20 ft
(6 m)

540 lbs
(245 kg)

Hammer Pipe

6-5/8 in
(168 mm)

10 ft
(3 m)

480 lbs
(218 kg)

9 in
(229 mm)

10 ft
(3 m)

580 lbs
(263 kg)

10-3/4 in
(273 mm)

10 ft
(3 m)

870 lbs
(395 kg)

Foremost Sales Office
Tel: 1-403-295-5800 (Worldwide)
Toll Free: 1-800-661-9190 (Canada/U.S.A.)
Fax: 1-403-295-5810

Send Mail
 
links