Core drilling rig circulation system

The mud circulation system plays a vital role in surface core drilling. It's like the life - blood of the drilling rig. The main purposes of this system are to cool and lubricate the drill bit, carry the cuttings out of the borehole, and maintain the stability of the borehole walls.. The mud circulation system plays a vital role in surface core drilling. It's like the life - blood of the drilling rig. The main purposes of this system are to cool and lubricate the drill bit, carry the cuttings out of the borehole, and maintain the stability of the borehole walls.. The circulation system on the rig is the system that allows for circulation of the Drilling Fluid or Mud down through the hollow drill string and up through the annular space between the drill string and wellbore.. The drilling mud circulation system ensures that the drilling fluid performs multiple functions, including mud cooling, bringing cuttings to the surface, and providing hydrostatic pressure to prevent blowouts. An optimized circulation system improves drilling efficiency. [pdf]

Impersonating an offshore drilling rig engineer

Yes, some people do work on oil rigs but this job is a common cover for scammers. If someone mentions this job early in your conversation, be. . Scammers don’t use their real pictures. They steal images of attractive people to lure victims. If you’re smitten with the picture perfect guy/gal online, do some detective work. Use Google Reverse Image Search to verify their pictures. If the same picture. . Scammers move fast from casual conversations to intense romance. They know that building an emotional bond increases their. . A typical scammer will avoid any direct interaction that could reveal their true identity. They’ll come up with endless excuses to avoid. . One of the biggest red flags is a sudden financial request. Scammers don’t ask for money outright but spin elaborate stories to justify their needs. They might say they’re facing an emergency, broken equipment or unexpected expenses and need money now.. [pdf]

Heavy down-the-hole drilling rig drilling

A down-the-hole drill, usually called DTH by most professionals, is basically a jackhammer screwed on the bottom of a drill string. The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or drilling mud). The DTH hammer is one of the fastest ways to drill hard rock. The system is thought to have been invented independently by Stenuick. Origin of the nameDTH is short for “down-the-hole”. Since the DTH method was originally developed to drill large-diameter holes downwards in surface-drilling applications, its name originated from the fact that the percussion mechanis. . In DTH drilling, the percussion mechanism – commonly called the hammer – is located directly above the drill bit. The drill pipes transmit the necessary feed force and rotation to the hammer and the bit, along with the flui. . A is first thought to have been used for rock drilling in 1844. Many quarries used hand held tools that required the driller to suspend himself from a rope over the quarry face in order to place the drill hole in. [pdf]