Drilling hook

Drilling hooks The hook that attaches to the traveling block to connect the bail of the swivel. 

Sometimes the motor may appear to be running overheated. In faet it may not be so. The easiest way to measure the temperature at site is by a thermometer which can be eonveniently inserted into the hole of the lifting hook. In very small motors where a lifting hook may not have been provided, a small oil cavity can be drilled in between the top fins allowing the thermometer to be embedded there (Figure lO. lO). 

Mast setup distance The distance from the centerline of the well to a designated point on the mast structure defined by a manufacturer to assist in the setup of the rig. Maximum rated static hook load The sum of the weight applied at the hook and the traveling equipment for the designated location of the dead line anchor and the specified number of drilling lines without any pipe setback, sucker rod, or wind loadings. 

Elevator links The elevator is a hinged clamp attached to the hook and is used to hoist drill pipe, tubing, and casing. The actual clamp is in a pair of links that in turn attaches to a bail supported on the hook. 

Figures 4-16, 4-17, 4-18, and Table 4-5 show recommended radii of hoisting tool contact surfaces. These recommendations cover hoisting tools used in drilling, and tubing hooks, but all other workover tools. Contact radii are intended to cover only points of contact between two elements and are not intended to define other physical dimensions of the connecting parts.

Thus the primary compressors will have sufficient pressure capability to drill the interval from 8,500 to 10,000 ft. A third primary compressor should be on site and hooked up for immediate service in the event of downhole problems or the necessity to shut down one of the operating compressors. Also, the booster should be hooked up for immediate service in the event of downhole problems. For more information and engineering calculations pertaining to compressors and boosters see reference 64. 

Figure 4.20.A shows a more recent cell reported by Cobben et al. It consists of three Perspex blocks, of which two (A) are identical and the third (B) different. Part A is a Perspex block (1) furnished with two pairs of resilient hooks (3) for electrical contact. With the aid of a spring, the hooks press at the surface of the sensor contact pads (4), the back side of which rests on the Perspex siuface, so the sensor gate is positioned in the centre of the block, which is marked by an engraved cross as in the above-described wall-jet cell. Part B is a prismatic Perspex block (2) (85 x 24 x 10 mm ) into which a Z-shaped flow channel of 0.5 mm diameter is drilled. Each of the wedges of the Z reaches the outside of the block. The Z-shaped flow-cell thus built has a zero dead volume. As a result, the solution volume held between the two CHEMFETs is very small (3 pL). The cell is sealed by gently pushing block A to B with a lever. The inherent plasticity of the PVC membrane ensures water-tight closure of the cell. The closeness between the two electrodes enables differential measurements with no interference from the liquid junction potential. The differential signal provided by a potassium-selective and a sodium-selective CHEMFET exhibits a Nemstian behaviour and is selective towards potassium in the presence of a (fixed) excess concentration of sodium. The combined use of a highly lead-selective CHEMFET and a potassium-selective CHEMFET in this type of cell also provides excellent results.

Twist two or more wires together, using the drill and hook to hold one end of the wires and the vise to hold the other end. Allow extra length for twisting. (See Figure 6.8.)... 

Hooke s law, o-=Ee, where E is the Young s modulus of the fiber. The failure strain was taken as the average of the strain imposed by the drill bit that caused fiber failure and the one immediately before that. 

Form B Wed thinning with adjusted cutting lips - for drilling high-strength steels -> insensible to pressure -> no hooking when machining thin-walled workpieces... 

Drilling fluids also support portion of drill-string or casing through buoyancy. Suspend in drilling fluid, buoyed by force equal to weight (or density) of mud, so reducing hook load at derrick. 

HOLE PULL strength The force, in pounds, necessary to rupture a plated-through hole or its surface terminal pads when loaded or pulled in the direction of the axis of the hole. The pnll is usually applied to a wire soldered in the hole, and the rate of pull is given in inches per minnte. hook a geometric drill bit defect of the cutting edges. 

Transition metals and Ni-Cu binary alloys were tested. The metals of 99.9%Cr, 99.9%Mn, 99.9%Fe, 99.96%Co, 99.97%Ni, and 99.5%Cu (in mass%) were chosen from the fourth periodic transition-metal elements, and both 99.98%Ag and 99.98%Pt were also tested. The binary alloys of Ni-Cu have differing contents of Cu 1.0, 2.0, 2.9, 4.9, 10.0, 18.3, 49.5, and 69.6 (in mass%). Coupon specimens were cut from sheets or plates, and a small hole of 2mm diameter was drilled in them for support. Specimens of Cr, Mn, and Pt were supported directly by a spot-welded Pt hook. For the binary alloys, button-ingots were made in an arc-melting fimiace rmder an inert argon atmosphere. Coupon specimens were cut from the hot-rolled plates (5 mm thickness) with a solution-heat treatment at 1100°C in air. All of the specimens were... 

Crane latches are needed on crane hooks to provide more safety for those handling loads with cranes or hoists. The purpose of the safety latch on the crane hook is to prevent inadvertent disconnection of the load. A falling load can be deadly. Immediate repair of defective latches is a must for proper employee safeguarding. Crane or hoist hooks that are not equipped with safety latches can be made safer by installing this device. Never weld, drill into, drill through, or modify a crane hook this could cause failure of the hook. Contact the manufacturer of the hook so the proper size of latch can be mounted on the hook, or purchase crane hooks that include special swivel latches for maximum safety. Cranes and hoists can be used in a warehouse to lift product or batteries. 

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