Across
- 3. The high-capacity J-shaped equipment used to hang various other equipment, particularly the swivel and kelly, the elevator bails or topdrive units. is attached to the bottom of the traveling block and provides a way to pick up heavy loads with the traveling block. is either locked (the normal condition) or free to rotate, so that it may be mated or decoupled with items positioned around the rig floor, not limited to a single direction.
- 8. is hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length .
- 11. is a large, specialized valve or similar mechanical device, used to seal, control and monitor oil and gas wells, the uncontrolled release of crude oil and/or natural gas from a well. They are usually installed redundantly in stacks. were developed to cope with extreme erratic pressures and uncontrolled flow (formation kick) emanating from a well reservoir during drilling.
- 13. A hinged mechanism that may be closed around drillpipe or other drillstring components to facilitate lowering them into the wellbore or lifting them out of the wellbore. In the closed position, arms are latched together to form a load-bearing ring around the component. A shoulder or taper on the component to be lifted is larger in size than the inside diameter of the closed elevator. In the open position, the device splits roughly into two halves and may be swung away from the drillstring component.
- 14. is the stationary section of a block and tackle that contains a set of pulleys or sheaves through which the drill line (wire rope) is threaded or reeved and is opposite and above the traveling block.
- 15. is a lifting device composed at minimum of one guyed mast, as in a gin pole, which may be articulated over a load by adjusting its guys.
Down
- 1. A planned route to allow personnel engaged in clandestine activity to depart from a site or area when possibility of compromise or apprehension exists.
- 2. Provide high-strength, high-pressure threaded connections that are sufficiently robust to survive the rigors of drilling and numerous cycles of tightening and loosening at threads. are usually made of steel that has been heat treated to a higher strength than the steel of the tube body.
- 4. a mechanical device that suspends the weight of the drillstring. It is designed to allow rotation of the drillstring beneath it conveying high volumes of high-pressure drilling mud between the rig's circulation system and the drillstring
- 5. The machine on the rig consisting of a large-diameter steel spool, brakes, a power source and assorted auxiliary devices. The primary function is to reel out and reel in the drilling line, a large diameter wire rope, in a controlled fashion. The drilling line is reeled over the crown block and traveling block to gain mechanical advantage in a "block and tackle" or "pulley" fashion. This reeling out and in of the drilling line causes the traveling block, and whatever may be hanging underneath it, to be lowered into or raised out of the wellbore. The reeling out of the drilling line is powered by gravity and reeling in by an electric motor or diesel engine.
- 6. is the freely moving section of a block and tackle that contains a set of pulleys or sheaves through which the drill line (wire rope) is threaded or reeved and is opposite (and under) the crown block (the stationary section).
- 7. Are commonly used to hang elevators from top drive systems, hooks, beckets and link adapters. They are available in a wide variety of sizes and capacities to fit the needs of any drilling operation.
- 9. Large-capacity, self-locking wrenches used to grip drillstring components and apply torque. As with opposing pipe wrenches for a plumber, must be used in opposing pairs. As a matter of efficiency, is essentially tied off with a cable or chain to the derrick, and the other is actively pulled with mechanical catheads.
- 10. Platform on which the derrickman works during the time a trip is being made. Also referred to as the tubing board or racking board on well servicing rigs.
- 12. The revolving or spinning section of the drillfloor that provides power to turn the drillstring in a clockwise direction (as viewed from above). The rotary motion and power are transmitted through the kelly bushing and the kelly to the drillstring. ." Almost all rigs today have a rotary table, either as primary or backup system for rotating the drillstring.