A Crossover Sub is essential for connecting the drill pipe to the Bottom Hole Assembly (BHA), as well as for linking specialised drilling tools and stabilisers within the BHA. These subs also serve to protect other tools in the drill string.

Designed for compatibility with tool joints, Sharpe® Crossover Subs are available in the following configurations:

• Box/Box
• Box/Pin
• Pin/Pin
• Bottleneck design

Crafted from high-quality AISI 4145H MOD material, they meet drill collar and API Spec 7-1 standards and can be customised to meet your specific requirements.

A Bit Sub typically features two box connections, used to connect the Drill Bit to the drill stem (BHA) components. These subs are usually bored with a float recess to accommodate a float valve. At Sharpe®, we can manufacture Bit Subs for any drill string connection size and function needed. Crafted from high-quality AISI 4145H MOD material, our Bit Subs meet drill collar and API Spec 7-1 standards, ensuring reliability and performance in demanding drilling operations.

A Lifting Sub is a specialised tool designed for the safe lifting and handling of drill string components, including drill pipe, drill collars, shock tools, directional equipment, and jars, using drill pipe elevators.

A Sharpe® manufactured lifting sub can be made in various sizes to ease handling of long or heavy downhole BHA components, and ensures secure and efficient handling of drilling tools for our clients in oil and gas or geologic/mineral exploration.

Sharpe® have the capability to design and load test non-standard lift subs in accordance with Australian standards.

A Saver Sub is a short, sacrificial sub used between the top drive quill and the drill string to prevent excessive wear on the top drive connection. A Saver Sub will help extend the life of the drill stem components by taking the connection wear during make-up and break-out operations. Sharpe® manufacture Saver Subs to a clients requirements, including specific connection joints and desired diameters providing a solution that is economic to repair or replace.

For enhanced life of Saver subs Sharpe® can manufacture these products out of 4145H MOD 130ksi material upon request.

During drilling, debris and solid-laden fluids can collect on surfaces and in crevices of drilling equipment, potentially obstructing operations or causing damage to crucial sealing areas. Jetting Subs from Sharpe® are engineered to efficiently clear drill cuttings, mudcake, and other debris from key drilling components like the riser, blowout preventer (BOP), and wellhead.

Each Jetting Sub features standard drill pipe box-up/pin-down connections and threaded side ports to accommodate bit nozzles. This design ensures effective debris removal, maintaining smooth operation and reducing downtime during drilling processes.

Our Circulating Sub is designed for effective drilling fluid circulation during casing runs. When attached to the top of the casing string, it connects with the mud flow line to facilitate the flow of drilling mud and helps establish higher circulation rates by opening a path to the annulus in the top section of the tool string. Enhanced circulation ensures better cuttings transport and hole cleaning before retrieving the string.

Sharpe® can manufacture circulating subs with either casing or union threads.

A Bullnose Sub has a blunt rounded end and is used to run in and condition the hole prior to running casing or logging runs. Bullnose Subs are also used on the bottom connection of a hole opener and are an effective way to guide the hole opener through the pilot hole.

Sharpe® offer a reliable and functional product, manufacturing bullnose subs in a range of thread configurations and can also accomodate a bit nozzle if required.

Sharpe® proudly manufactures robust and reliable Casing/Tubing Drive Subs, essential for running casing and tubing strings with a top drive system.

A Casing Drive Sub is essential for efficiently transferring torque from the rotary top drive to the top of the casing string in drilling operations. By facilitating the connection between the top drive system and the casing or tubing strings, our Drive Subs enhance operational efficiency and safety at the rig site, while their superior durability—crafted from high-quality materials that exceed API specifications—ensures reliable performance in Australia’s demanding drilling conditions.

Float Subs prevent drilling mud and cuttings flowing back up the drill string. Sharpe® Float Subs are a solution to eliminating backflow and ensuring smooth drilling operations with the main body machined to accomodate a one-way float valve on the inside diameter of the sub.

Engineered with precision to API Standard, our range of Float Subs and Float Valves provide a reliable seal, maintaining pressure and optimising safety of drilling operations for clients across Australia.

A Drill Pipe Pup Joint is a custom length drill pipe joint. The Pup Joint enables the driller to land at a specific depth whilst staying within the Kelly Valve’s working area. Pup Joints can also be used to add length to downhole tools. Our Pup Joints are manufactured to the same specifications and API standards as full-length drill pipes, enabling them to withstand the same pressure, torque, and mechanical stress during drilling operations, providing our clients with the flexibility and precision they need from the drill string.

Lift Nubbins are essential for the safe handling of drilling tools and tubular products on the rig floor. They facilitate easy handling or removal of drilling tools, drill collars or drill pipe, and are load rated and tested to meet the rigorous demands of the oil and gas industry and Australian standards. Sharpe® Lift Nubbins provide superior thread protection minimising the need for costly tool replacements due to thread damage.

Sharpe® manufacture Lift Nubbins to suit your tool joint, to precise specification, using integrally machined forged steel body design with heavy-duty lugs. We ensure compliance with API Spec 7-1 and each unit is certified and load tested according to Australian Lifting Standard (AS4991). Additionally, Sharpe® manufactures spinner-style haul nubbins and standard certified lift nubbins to meet customer requests, providing versatile solutions for your drilling needs.

Fishing tools are utilised for the retrieval of stuck or broken drill string components from the wellbore. Sharpe® support clients in the Oil & Gas Industry to avoid the costly downtime of rigs and the potential loss of valuable downhole tools, providing a full suite of solutions from manufacturing to re-dressing, refurbishing, and servicing of a comprehensive range of fishing tools.

Our fishing tools are rigorously gauged and available with standard API or client-specified threads.

Sharpe® also collaborate with clients to design and manufacture custom fishing tools tailored to their specific needs, ensuring efficiency and cost-effectiveness.

We provide and service an extensive range of Fishing Tools including:

• Junk Mills
• Spears
• Wash Pipe
• Magnets
• Boot Baskets
• Taper Taps
• Fishing Bumper Sub
• Lead Impression Block
• Internal Casing Cutters/Scrapers
• Die Collars
• Safety Joints

A Side Entry Sub allows various drilling, fishing, and wireline operations through drill pipe without interference from the rig’s top drive unit. It extends the life of the top drive and enhances operational efficiency, safety, and flexibility on the drill rig by providing convenient access to the drill string and associated tools.

Sharpe® manufacture side entry subs in many configurations to suit varied operating requirements. This includes single or dual outlets in a range of sizes, rotary shoulder connections including premimum licenced connections, and with working pressures up to 15,000psi.

All of our Side Entry Subs are Integral manufactured from a 4145H MOD forging which means that the sub is one piece and has no heat affected zone from welding the connection onto the body.

An Inside BOP (Inside Blowout Preventer) or IBOP is a high pressure control valve critical to the safety of drilling operations. It is installed in the drill string and acts as a check valve allowing drilling fluid to be circulated down the string but prevents backflow.

Sharpe® are proud to supply M&M IBOPs, engineered to withstand high pressure conditions and prevent the escape of underground fluids or a blowout from occurring. We rigorously test our products to ensure safety and quality for your operation and your team onsite. We also service and recertify this equipment to maintain the compliance and safety of your operations.

The M&M IBOPs are phosphate coated to increase corrosion resistance and prolong the lifespan of your tooling.

Crucial to controlling fluid flow within the drill string, Kelly Valves prevent blowout and maximise operational safety of any drilling operation. Sharpe® supply M&M products, regarded as a leading brand in Kelly Valves, to the Australian Oil and Gas market.

We choose to supply M&M Kelly Valves for their superior strength, precision and responsiveness in control, and offer a reliable and safe solution to wellbore management. Our experienced team can provide tailored advice to ensure you obtain the right product to meet your specific drilling needs. Sharpe® also hold stock of blank end M&M Kelly Valves ready to machine with specialised threads and premium connections.