This is job No. 1. It doesn’t matter how regular you are about maintenance if the person handling the tools doesn’t know what he’s doing. Says Caho: “You need someone who’s actually trained to do it.” From what Caho has seen, that’s easier said than done these. .
A checklist creates a sense of organization and accountability on the jobsite. “I’m a big believer in a daily inspection form that has been made up by the company,” Caho admits. “Almost. .
This has become an increasingly important factor in rig maintenance. “Make sure you’re using the specific fluids that the manufacturer or your company has required,” Caho. .
If you’re maintaining your rig properly, this should be a regular part of your routine. “Those should be checked every day, or even throughout the. .
There’s a tendency to take shortcuts when it comes to wearing safety gear. Don’t do it. Personal protective equipment can’t be viewed as an option. You always want to be dressed in a way.
[pdf] The hydrostatic pressure of the drilling fluidis essential in maintaining control of a well and preventing blowouts. In a practical sense, it is defined as the static pressure of a fluid column. The hydrostatic pressure of a mud column is a function of the mud weight and the true vertical depth of the well. Attention must be. .
Drilling operations often involve several fluid densities, pressure from fluid circulation, and perhaps applied surface pressure during kick control. .
The drilling fluid types provide a beneficial effect relative to drill string weight or hook load. The mud system supports or buys some of the pipe.
[pdf] 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.
[pdf] 
