drill string safety valve brands

Sub-drill exclusively represents Global Manufacturing Inc, an industry leading and world renowned US based manufacturer of Drill Stem Valves and Associated Products.

Global Manufacturingspecialise in the design and manufacture of a complete range of Drill Stem Valves, developed and engineered using FEA to be the highest quality and most reliable valve on the market.

Precision machined from the highest quality materials, Global Valves are competitively priced and reliable - designed to last the pace offshore in all types of well and operating conditions, including 20k designs for the next generation of drilling.

Sub-drill are the approved service facility for Global Manufacturing USA; we inspect, repair and test all types of Top Drive, IBOP’s, Full Open Safety, Kelly, Gray Type and Drop-In Check Valves to OEM standards. Sub-drill provides in-house inspection, repair, refurbishment and pressure testing facilities to the latest industry standards at its Aberdeen Westhill facility.

In addition to our in-house inspection, repair and test facilities, Sub-drill provide the means to test valves offshore using our compact portable Sub-drill DSV™.

TIW is the original designer and manufacturer of ball type Safety and Kelly valves. Our strict adherence to API specifications as well as our own quality requirements ensures TIW valves are the highest quality valves in the market.

TIW Class I & Class II Kelly Valves may be utilized as a Drill Stem Safety Valve or as an Upper or Lower Kelly Cock and is designed to hold pressure from both directions.

TIW Kelly Valve Design and Quality System are certified by API.TIW Safety and Kelly Valves are also offered for H2S service, meeting all NACE standards. Standard Pressure rating is 10,000 PSI Test with higher pressure ratings available.

Kelly valves are used as a safety valve in drilling rigs. The use of the kelly valve enables an interruption of the flow inside the drill string. Depending on the conditions, we supply our kelly valves with different overall lengths, external and internal diameters as well as thread types. Manufacturing is done according to API specifications 7-1 and in compliance with IS0 9001:2015. Certification (Type Approval) by ABS and DNV is possible.

Surface-controlled subsurface safety valves (SCSSVs) are critical components of well completions, preventing uncontrolled flow in the case of catastrophic damage to wellhead equipment. Fail-safe closure must be certain to ensure proper security of the well. However, this is not the only function in which it must be reliable—the valve must remain open to produce the well. Schlumberger surface controlled subsurface safety valves exceed all ISO 10432 and API Spec 14A requirements for pressure integrity, leakage acceptance criteria, and slam closure.

Through decades of innovation and experience, Schlumberger safety valve flapper systems are proven robust and reliable. The multizone dynamic seal technology for hydraulic actuation of subsurface safety valves is a further improvement in reliability performance when compared with traditional seal systems in the industry.

The multizone seal technology is currently available in the GeoGuard high-performance deepwater safety valves, which is validated to API Spec 14A V1 and V1-H.

The IBOP, also called Gray Valve or BVR, is a back pressure valve used in the drill string to prevent the well from flowing uncontrollably up the drill string. It is generally used in 2 ways:

Below the rig floor without a plug when connected in the drill-string. It can be left in the drill string as long as necessary to re-establish control of the well-pressure balance.

The RDCV, also called Dart Valve or a Back-Pressure Valve, controls backflow through the drill pipe during a kick or when tripping pipe into the hole against pressure. Check-valve compatibility should be checked with Kelly Cock free passage.

In 2006, Forum purchased the Baker SPD product line. Forum continues to manufacture the products formerly known as Baker SPD under the SPD name and offers a complete line of float valves, repair kits, and puller assemblies for a wide range of drilling situations and operating conditions. We are the premier provider of “Certified” drill pipe float valves that includes high- and low-pressure testing, serialization, and full material traceability, providing improved reliability and failure prevention.

High-performance drill pipe float valves are essential for consistent fluid control throughout drilling. Also known as non-return valves, this type of downhole safety valve prevents undesirable fluids from backing up into the drill string any time your crew is modifying connections.

We encourage you to discuss your needs with our team. We can walk you through our extensive selection of float, gate and relief valves, in addition to the many other products we provide.

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There are many uses of valves - mainly controlling the flow of fluids and pressure. Some examples include regulating water for irrigation, industrial uses for controlling processes, and residential piping systems. Magnetic valves like those using the solenoid, are often used in a range of industrial processes. Whereas backflow preventers are often used in residential and commercial buildings to ensure the safety and hygiene of the water supplies. Whether you are designing a regulation system for irrigation or merely looking for a new replacement, you will be able to find whatever type of drill pipe safety valve that you need. Our products vary from check valves to pressure reducing valves, ball valves, butterfly valves, thermostatic mixing valves, and a lot more.

Kelly Valve/Drill Pipe Safety Valve is a full opening valve that provides positive pressure control of the fluids in the drill string. These valves can be used as a drill pipe safety valve or upper kelly valve to control blowout pressures, or as a lower kelly valve to prevent loss of drilling fluid when the kelly is disconnected.

The valve seals in both directions with metal to metal seals. Available in 10,000 psi working pressure as standard, 15,000 psi working pressure is available in certain sizes upon request. The valve uses a hexagon socket on the operating stem and has positive stops in the open and closed positions.

Oteco valve bodies are manufactured for today’s increasingly harsh drilling environment. All valve bodies are cast out of ductile iron or a low-alloy carbon steel and are heat treated to a hardness equal to or less than 22 Rockwell C (≤ 22 Rockwell C 2 HR) to address the corrosive effects of hydrogen sulfide gas (H2S). Oteco’s integral valve bodies are manufactured from a one-piece casting and are not welded together the way some other competitors produce their bodies. This means that customers receive a superior and more reliable valve body.

All of Oteco’s plunger valves are machined from one solid piece of material to produce a more reliable float valve and reduce the risk of downhole valve failure.

All Oteco standard-service flapper valves are made of low-alloy steel and then case hardened for wear resistance, thus giving a longer operating life.

Inconel® springs come standard on all our valves. Inconel® springs are significantly more resistant to corrosion when compared with the standard service springs provided by most other manufacturers. Inconel® springs are also good for sour-gas (H2S) applications.

All Oteco drill-pipe float valves and replacement parts are manufactured to standard industry dimensions and interchangeable with other major manufacturer’s parts.

The Model F is a plunger-type float valve that provides a positive instantaneous shut off, providing constant fluid control while drilling. The Model F is a reliable and economical selection under standard drilling operations.

The Model FC Automatic-Fill plunger-type float valve incorporates a unique key assembly and slotted valve stem to hold the plunger open during run in of the drill pipe and allows the pipe to fill from the bottom, saving time, reducing mess, and avoiding hazards. The plunger is automatically released once circulation begins.

The Model FA Pressure-Monitoring plunger-type float valve has a special port running through the plunger of the float valve. This valve is used when monitoring the bit head for gas pressure and allowing differential pressure measuring when required. The port also permits partial automatic fill during run in.

The Model G is a flapper-type float valve that, when opened, offers an unobstructed bore through the float valve. The uniquely designed flapper closes rapidly to prevent shavings from entering the drill string when circulation stops and also assists primary BOP equipment in maintaining internal pressure control. The valve will fully open when the first joint is raised from the hole, preventing pulling wet joints.

The Model GA Pressure-Monitoring flapper-type float valve is indistinguishable from the Model G with the exception of a tungsten-carbide insert in the flapper valve. The insert has a quarter-inch orifice through the center that allows for differential pressure monitoring. The orifice also allows for partial automatic filling of the drill pipe during run in.

The Model GC Automatic-Fill flapper-type float valve incorporates a unique self-releasing key assembly that holds the flapper partially open during run in, allowing the pipe to fill from the bottom. This eliminates the need for filling the drill pipe from the top, saving time and money. The valve will fully open when the first joint is raised from the hole, preventing pulling wet joints while avoiding the environmental and safety risks related to having mud on the rig floor. The valve can be run with the automatic-fill option or in the standard, closed position.

The Model GCA Automatic-Fill/Pressure-Monitoring flapper-type float valve includes all the advantages of the Models G, GC, and GA. An unobstructed bore through the float valve, when open, permits automatic partial filling of the drill pipe from the bottom and measuring differential pressures when necessary.

An IBOP or an Inside BOP (Inside Blowdevice that can be installed in the drill string that acts as a check valveallowing drilling fluid to be circulated down the string but prevents back flow.

These high-pressure safety valves and associated equipment are designed to shut off the well hole and prevent the escape of the underground fluids and prevent a blowout from occurring.IBOPs are designed to prevent emergencies. They are typically used as a last attempt to stop pressure from coming up the well.

A stabbing valve is connected to the work string in the event that the well starts to flow when running or retrieving the string and is kept on the rig floor as a contingency against unexpected well flow.

Dart valves refer to the plunger mechanism which is shaped like a dart that is positioned in the drill string to control formation pressure during kicks and controls the back flow through the inside of the drill pipe itself.

The drop in valve or D.I.V. is dropped into the drill string and falls to a special landing sub that is usually located near to the top drill collar in the drill string. It allows the driller to pump

A FOSV (Full Opening Safety Valve) is a ball valve designed to withstand high pressure conditions and is able to hold pressure from both directions. This valve is named “Full Opening” because when the ball valve is opened, the flow path has a smooth, open inside diameter. These valves have several functions depending on type of rigand drilling operation.

The valve should be always located on the rig floor and left in the open position, which is critical so the valve can stabbed quickly into drill string if the well flows through drill pipe.

Full Opening Safety Valves are also known as a drill stem safety valve (DSSV), TIW (Texas Iron Works), top drive IBOP, Kelly valve (upper and lower), mud saver valve, and Kellycock (upper and lower).

Drill String Safety Valves (DSSVs) are used to prevent blowouts through the drill string during tripping operations. DSSV is the preferred term of the brand, Hi Kalibre.

TIW is one of the first companies to make ball type Safety and Kelly valves.TIW Valve (Texas Iron Works) is often used as the generic name for a drill string safety valve.

The upper Kelly valve, or Kellycock, is used on conventional rigs where there is no top drive and installed between the Kelly and the swivel and normally has left-hand threads. The basic purpose of this valve is to The upper Kelly valve is often opened and closed by a hydraulic or pneumatic actuator that can be separately mounted or attached to the top drive.

A lower Kelly valve, or lower Kellycock, is used on conventional rigs where there is no top drive and is installed on the lower end of the Kelly and used when the upper Kelly valve is damaged or not easily accessible. The lower Kelly valve is often opened and closed by a hydraulic or pneumatic actuator that can be separately mounted or attached to the top drive.

The upper and lower safety valves on top drive systems are connected together. Should a kick occur, the safety valves are immediately connected to the drill string, and the upper valve remotely closed. There is no need to have another safety valve on standby as with Kelly drive operations.

The term was popularized by Tesco corporation in Canada when they supplied their top drives with mud saver valves instead of IBOPs. The mud saver valve closes when circulation is stopped, retaining the mud inside the Kelly or top drive to minimize spillage and mud waste. The main function of the valve is focused on cutting mud flow when making and breaking connections.