Safety 1st Advancer Manuel de l'opérateur télécharger pdf (Page 10)

Environmental Remediation Drilling

Safety Guideline

Page 10 of 132

Term Definition

Directional Drilling

Drilling that is deliberately made to depart significantly from the vertical.

Drill Rig Types

Hollow stem auger, flight auger, air rotary, casing hammer, mud rotary, rotosonic

drilling, or direct push.

Drill Rod Chuck

Jaws

Hydraulic driven equipment that holds the drill stem stable as the drill is rotated

and advanced.

Drill Stem (Drill

Rods)

All members in the assembly used for drilling by the rotary method from the

swivel to the bit, including the kelly, drill pipe and tool joints, drill collars,

stabilizers, and various subsequent items.

Driller (Rig

Operator)

The employee of the drilling company directly in charge of a drilling rig and

crew. Their main duty is operation of the drilling rig and hoisting equipment, but

they are also responsible for the down-hole condition of the well, operation of

down-hole tools, and pipe measurements.

Driller Helper

An assistant to the driller that moves the augers in and out, decouples and

attaches the drive head, shovels cuttings, and otherwise assists the driller in all

aspects of the operation except for the direct operation of the drill.

Drilling Fluid

Circulating fluid, one function of which is to force cuttings out of the borehole

and to the surface. While a mixture of clay, water, and other chemical additives is

the most common drilling fluid, boreholes can also be drilled using air, gas, or

water as the drilling fluid.

Drive Hammer

A hydraulically driven hammer that advances casing as the drill bit advances.

Exclusion Zone

The exclusion zone is an area where inhalation, ingestion, or dermal contact with

contaminants is plausible. The exclusion zone is sometimes called the hot zone. It

is the area where the personnel have to be properly dressed in PPE and make sure

any required respiratory protection is being worn.

Explosive

A chemical that causes a sudden, almost instantaneous release of pressure, gas,

and heat when subjected to sudden shock, pressure, or high temperature.

Exposure or exposed

When an employee is subjected in the course of employment to a chemical that is

a physical or health hazard, and includes potential (incidental or possible)

exposure. Subjected in terms of health hazards includes any route of entry (such

as inhalation and ingestion)

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