Tornado Precautions

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    Its Tornado SeasonIts Tornado Season

    Cactus Drilling Company L.L.C.

    Are You Ready?Are You Ready?

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    Emergency Weather ProceduresEmergency Weather Procedures

    In This PresentationIn This Presentation

    Learn how to recognizeTornado Warning Signs

    Implement CompanyEmergency Procedures

    Learn how to recognizeTornado Warning Signs

    Implement CompanyEmergency Procedures

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    Emergency Weather ProceduresEmergency Weather Procedures

    Severe Weather Does Kill!Severe Weather Does Kill!

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    Emergency Weather ProceduresEmergency Weather Procedures

    What to do when severe

    weather approaches

    What to do when severe

    weather approaches

    Know the difference betweena Watch and a Warning Designate a safe location

    at the worksite

    Know the difference betweena Watch and a Warning Designate a safe location

    at the worksite

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    Emergency Weather ProceduresEmergency Weather Procedures

    Signs of Tornado FormationSigns of Tornado Formation

    Dark, often greenish sky,loud freight train roar

    Dark, often greenish sky,loud freight train roar

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    Emergency Weather ProceduresEmergency Weather Procedures

    Straight line windsand baseball size hailStraight line windsand baseball size hail

    Wall CloudWall Cloud

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    Emergency Weather ProceduresEmergency Weather Procedures

    Protect your crew during:Protect your crew during:

    Lightning Tornadoes

    High Wind

    Cactus PoliciesCactus Policies

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    Emergency Weather ProceduresEmergency Weather Procedures

    LightningLightning

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    Emergency Weather ProceduresEmergency Weather Procedures

    SuspendoperationsSuspend

    operations

    Shut DownRig

    (When Possible)

    Shut DownRig

    (When Possible)

    Seek

    Shelter

    Seek

    Shelter

    If a Lightning Storm is

    near the rig location

    If a Lightning Storm is

    near the rig location

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    Emergency Weather ProceduresEmergency Weather Procedures

    TornadosTornados

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    Emergency Weather ProceduresEmergency Weather Procedures

    If you are under

    a Tornado WARNING

    If you are under

    a Tornado WARNING

    SHUT DOWN RigImmediately

    SHUT DOWN RigImmediately

    Seek Shelter(Change House)

    Seek Shelter(Change House)

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    Emergency Weather ProceduresEmergency Weather Procedures

    High Wind

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    Emergency Weather ProceduresEmergency Weather Procedures

    If Winds Reach

    50 MPH

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    Emergency Weather ProceduresEmergency Weather Procedures

    DerrickmanMust Not Bein the Mast

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    Emergency Weather ProceduresEmergency Weather Procedures

    Modern ForecastingModern ForecastingDoppler RadarDoppler Radar

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    Emergency Weather ProceduresEmergency Weather Procedures

    Fujita Tornado Scale

    Emergency Weather Procedures

    Scale

    F-0

    F-1

    F-2

    F-3

    F-4

    F-5

    Wind Speeds

    40-72 mph

    73-112 mph

    113-157 mph

    150-205 mph

    207-260 mph

    261-310 mph

    Typical Damage

    Tree Branches Broken

    Mobile Homes pushed off

    foundation

    Considerable damageMobile home demolished

    Trees uprooted

    Roofs and walls blown

    down Cars Thrown

    Well-constructed buildings

    leveled

    Massive destruction, autos

    thrown as far as 100 meters

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    Emergency Weather ProceduresEmergency Weather ProceduresEmergency Weather Procedures

    Satellites ProvideCurrent Weather Conditions

    Satellites ProvideCurrent Weather Conditions

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    Emergency Weather ProceduresEmergency Weather Procedures

    Sat Feed is often

    Knocked Outby Storm Systems

    Sat Feed is often

    Knocked Outby Storm Systems

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    Emergency Weather ProceduresEmergency Weather Procedures

    Public Alert Certified RadioPublic Alert Certified Radio

    AutomaticallyTunes in

    Latest AtmosphericInformation

    AutomaticallyTunes in

    Latest AtmosphericInformation

    Weather isLocalized to

    Phone Location

    Weather isLocalized to

    Phone Location

    First Line of DefenseFirst Line of Defense

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    Emergency Weather ProceduresEmergency Weather Procedures

    Change HouseChange HouseEquipment house

    designed to withstand a TornadoEquipment house

    designed to withstand a Tornado

    Provides Human Shelterin Emergencies

    Provides Human Shelterin Emergencies

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    Emergency Weather ProceduresEmergency Weather Procedures

    8ft

    30ft

    8ft

    Change HouseDimensionsChange HouseDimensions

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    Emergency Weather ProceduresEmergency Weather Procedures

    Change House Shelter SpecificationsChange 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)

    Surface: Moderately Smooth

    Wind Velocity: Up to 300mph

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    Emergency Weather ProceduresEmergency Weather Procedures

    Building Category: IV Hurricane or F5 Tornado

    Anchor Pull Test: 4@10,000 Each

    Earth Screw/anchor length: 68 in.

    Rod diameter 11/16 in.

    Helix diameter:

    Holding power in normal soil: 11,000 lbs.

    Anchor weight: 26lbs

    8 in.

    Change House Shelter SpecificationsChange House Shelter Specifications

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    Emergency Weather ProceduresEmergency Weather Procedures

    Anchored Fasteningsfrom Change Houseto Ground

    Anchored Fasteningsfrom Change Houseto Ground

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    Emergency Weather ProceduresEmergency Weather Procedures

    Change HouseEarth Screw/Anchor

    68 Length

    Change HouseEarth Screw/Anchor

    68 Length

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    Emergency Weather ProceduresEmergency Weather Procedures

    68

    68

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    Emergency Weather ProceduresEmergency Weather Procedures

    GroundedGrounded

    Secured

    Safety Cages

    Secured

    Safety Cages

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    Emergency Weather ProceduresEmergency Weather Procedures

    Secured DoorsSecured Doors

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    Emergency Weather ProceduresEmergency Weather Procedures

    Your Change Houseis Your Safe House

    Your Change Houseis Your Safe House

    Cactus Drilling Company L.L.C.Cactus Drilling Company L.L.C.

    Use it to Save Lives!Use it to Save Lives!