Many accidents on the drill floorwhile pipe tripping involve using tongs. Injuries result from being caught between tongs and being struck by swinging tongs. All tongs should be securely attached and anchored. When pulling the pipe, the hole shall be kept full from the trip tank. The hole shall be checked regularly to ensure that it is taking the correct amount of fluid. The volume required to fill the hole every 3-5 stands shall be recorded in the Trip Sheet until the bit is out of the hole.
[pdf] An automated drill rig (ADR) is an automated full-sized walking land-based drill rig that drills long lateral sections in horizontal wells for the oil and gas industry. ADRs are agile rigs that can move from pad to pad to new well sites faster than other full-sized drilling rigs. Each rig costs about $25 million. ADR is used extensively in the . According to the "Oil Patch Daily News", "Each rig will generate 50,000 man-hours of work during the construction phase and up.
[pdf] Before any workover, the well must first be . Since workovers are long planned in advance, there would be much time to plan the and so the reverse circulation would be common. The intense nature of this operation often requires no less than the capabilities of a . The workover begins by killing the well then removing the wellhead and possibly the flow line, then installing a B.O.P. commonly known as a , then lifting the fr.
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