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It’s Tornado Season…. Are You Ready?. Cactus Drilling Company L.L.C. In This Presentation…. Learn how to recognize Tornado Warning Signs Implement Company Emergency Procedures. Severe Weather Does Kill!. What to do when severe weather approaches….
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It’s Tornado Season… Are You Ready? Cactus Drilling Company L.L.C.
In This Presentation… • Learn how to recognize Tornado Warning Signs • Implement Company Emergency Procedures
What to do when severeweather approaches… • Know the difference betweena Watch and a Warning • Designate a safe locationat the worksite
Signs of Tornado Formation Dark, often greenish sky, loud freight train roar
Wall Cloud… Straight line winds…and baseball size hail
Cactus Policies Protect your crew during: • Lightning • Tornadoes • High Wind
If a Lightning Storm isnear the rig location … Suspend operations Shut Down Rig (When Possible) Seek Shelter
If you are under a Tornado WARNING… SHUT DOWN Rig Immediately Seek Shelter (Change House)
Derrickman Must Not Be in the Mast
Modern Forecasting Doppler Radar
Typical Damage Tree Branches Broken Mobile Homes pushed off foundation Considerable damage Mobile home demolished Trees uprooted Roofs and walls blown down Cars Thrown Well-constructed buildingsleveled Massive destruction, autos thrown as far as 100 meters Emergency Weather Procedures Fujita Tornado Scale Scale Wind Speeds 40-72 mph F-0 73-112 mph F-1 113-157 mph F-2 150-205 mph F-3 207-260 mph F-4 261-310 mph F-5
Satellites Provide Current Weather Conditions Emergency Weather Procedures
Sat Feed is often Knocked Out by Storm Systems
Public Alert Certified Radio… First Line of Defense Automatically Tunes in Latest Atmospheric Information Weather is Localized to Phone Location
Equipment house designed to withstand a Tornado Provides Human Shelterin Emergencies Change House
30ft 8ft 8ft Change House Dimensions
Change House Shelter Specifications Structure: Rigid Height: 8 ft. Width: 8 ft. Length: 30 ft. Weight: 15,000lbs (approx) Cross Section: Square (Wind normal to face) Moderately Smooth Surface: Wind Velocity: Up to 300mph
Change House Shelter Specifications Building Category: IV Hurricane or F5 Tornado Anchor Pull Test: 4@10,000 Each Earth Screw/anchor length: 68 in. 11/16 in. Rod diameter Helix diameter: 8 in. 11,000 lbs. Holding power in normal soil: Anchor weight: 26lbs
Anchored Fastenings from Change House to Ground
Change HouseEarth Screw/Anchor 68” Length
68” 68”
Secured Safety Cages Grounded
Your Change House is Your Safe House Use it to Save Lives! Cactus Drilling Company L.L.C.