DTH technique was used in well drilling exclusively to dig, accurate, vertical bores, and rotary drilling was used to turn the hole. The Directional DTH system, patented by Atlas Copco, was first used successf.
[pdf] A flow line, used on a drilling rig, is a large diameter pipe (typically a section of casing) that is connected to the bell nipple (under the drill floor) and extends to the possum belly (on the mud tanks) and acts as a return line (for the drilling fluid as it comes out of the hole), to the mud. Possum BellyThe is used to slow the flow of returning before it hits the . This enables the shale shaker to clean the cuttings out of the drilling fluid before it is returned to the pits for circulation.. .
Another common add on is the sample box. This is a heavy duty rubber hose that is inserted at the end of the flow line and at the other end emplaced into the sample box itself. The sample box is used to capture sa. .
A stinger line is similar to a flow line, but unlike a flow line is not used to maintain circulation. The stinger line is attached to the to allow for the pressure from a to be released. The stinger line.
[pdf] In this full length Offshore Oil & Gas Drilling User’s guide, you’ll gain valuable insight to help you choose the right wire ropes for your application, how to install wire ropes on a drill line, how to inspect your rop.
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