What is VAM threads?
What is VAM threads?
VAM TOP® is the most widely used Threaded and Coupled (T&C) premium connection, in tubing and casing sizes. It has become the standard for OCTG premium threads over the years, with the largest field record in the industry.
Is VAM top compatible with new VAM?
For sizes ≥ 5” OD, all weights are interchangeable within each size. sizes ≥ 5” OD, VAM TOP HC and VAM TOP HT are interchangeable with VAM TOP.
What does VAM mean?
Vesicular Arbuscular Mycorrhizae
VAM stands for Vesicular Arbuscular Mycorrhizae. It is formed by the symbiotic association between fungi and angiosperm roots. The vesicular is a fungus that penetrates the roots of a vascular plant in order to help them to capture nutrients from the soil.
What are premium connections?
Premium connections: Premium connections are proprietary connections that offer premium features not available on API connections. Most offer a metal-to-metal seal (e.g. VAM joint and Hydril joint) for improved high pressure seal integrity.
How is VAM calculated?
Definition. VAM is calculated the following way: VAM = (metres ascended × 60) / minutes it took to ascend. A standard unit term with the same meaning is Vm/h, vertical metres per hour; the two are used interchangeably.
What is a good VAM?
To win a mountain stage of a Grand Tour it’s predicted (by Ferrari) that a rider needs a VAM of between 1650 and 1800m/h.
What is premium connection casing?
Premium connections are proprietary connections that offer premium features not available on API connections. Most offer a metal-to-metal seal (e.g. VAM joint and Hydril joint) for improved high pressure seal integrity.
Is VAM a Biofertilizer?
ABTEC VAM is a concentrated form of Vesicular Arbuscular Mycorrhizae (VAM), which is an ecofriendly biofertilizer that enhances the productivity of plants as well as soil nature and fertility. All crops including cereals, vegetables, plantation crops and ornamental plants.
What is a good VAM number?
Ferrari reckoned that a VAM of around 1800-1900 was required to win a Grand Tour, I would guess anything in excess of 900-1000 for an amateur is pretty decent and perhaps anything above 1200-1300 is excellent for an amateur, although unless you are planning on taking part in Hill Climbs or hilly sportives like the Fred …
Is the VAM top HT a threaded or coupled connection?
VAM TOP ® HT TM (High Torque) is a Threaded and Coupled (T&C) premium connection which has been designed with the main features of the VAM TOP ® product line. VAM TOP ® and VAM TOP ® HT TM are interchangeable (except for 4 1/2″ sizes).
What is the yield strength of VAM top HT TM?
Yield strengths from 55 ksi to 150 ksi. VAM TOP ® HT TM has been specially designed for application where high torque is anticipated due to string rotation as rotating casing when cementing or torque rotating liner while running. VAM TOP ® HT TM provides high torque performance with 80% PBYS compression, and is qualified as per ISO13679 CAL-IV.
What are the different sizes of VAM top?
VAM TOP ® 1 Available in sizes from 2 3/8″ to 16″ 2 Standard, alternative and special drifts. 3 Carbon, Martensitic stainless steel (13%Cr & Super 13%Cr), Duplex, Super Duplex and Nickel base Alloys. 4 Yield strengths from 55 ksi to 150 ksi.
What does VAM top HT TM stand for?
VAM TOP ® HT TM has been specially designed for application where high torque is anticipated due to string rotation as rotating casing when cementing or torque rotating liner while running. VAM TOP ® HT TM provides high torque performance with 80% PBYS compression, and is qualified as per ISO13679 CAL-IV.