01 Chapter 01.pps

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    © 2001 PetroSkills LLC, All Rights Reserved

    Drilling RigsDrilling Rigs

    Cable Tool RigCable Tool Rig

    Rotary RigRotary Rig

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    © 2001 PetroSkills LLC, All Rights Reserved

    Cable Tool RigsCable Tool Rigs

    Cable tool rigs use a heavy bitCable tool rigs use a heavy bithanging from a wire rope to drillhanging from a wire rope to drill

    Drilling action from bit impactingDrilling action from bit impacting

    the formationthe formation

    Must use a bailer to removeMust use a bailer to remove

    cuttings from holecuttings from holeNot used much any moreNot used much any more

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    © 2001 PetroSkills LLC, All Rights Reserved

    Cable Tool RigCable Tool Rig

    A cable isA cable isconnected to theconnected to the

    walking beamwalking beam

    which moves thewhich moves thebit up and downbit up and down

    No mudNo mud

    circulationcirculation

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    Land RigsLand Rigs

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    Land RigsLand Rigs

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    Rotary Drilling RigsRotary Drilling Rigs

    The drill string is rotated turningThe drill string is rotated turningthe bit which drills the formationthe bit which drills the formation

    Drilling mud is pumped down theDrilling mud is pumped down the

    drill string and back up thedrill string and back up theannulus to remove cuttingsannulus to remove cuttings

    The rotary rig is the drilling rigThe rotary rig is the drilling rig

    used todayused today

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    Rotary Drilling RigRotary Drilling Rig

    Rotation of theRotation of thedrill string turnsdrill string turns

    the bitthe bit

    Drilling mud isDrilling mud iscirculated to liftcirculated to lift

    cuttings out ofcuttings out of

    the holethe hole

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    Rotary Drilling RigRotary Drilling Rig

    The rotaryThe rotarytable turnstable turns

    the drillthe drill

    string whichstring whichturns the bitturns the bit

    and makes itand makes it

    drilldrill

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    Rotary Drilling RigRotary Drilling Rig

    A top drive can beA top drive can beused to turn theused to turn the

    drill string ratherdrill string rather

    than using thethan using the

    rotary tablerotary table

    More e!pensiveMore e!pensive

    but may save timebut may save time

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    Rotary Drilling RigRotary Drilling Rig

    The derrick mustThe derrick mustbe modified withbe modified with

    guide rails andguide rails and

    be able tobe able towithstand thewithstand the

    tor"uetor"ue

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    Rotary Rig TypesRotary Rig Types

    LandLand

    #ffshore#ffshore

    PlatformBarge

    Jacku

    Semisu!mersi!le"rill shi

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    Land RigsLand Rigs

    Can be anythingCan be anythingfrom a small $from a small $

    mobile rig to amobile rig to a

    very large rigvery large rigDesigned to drillDesigned to drill

    in almost anyin almost any

    environmentenvironment

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    Rotary RigsRotary Rigs

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    14/45© 2001 PetroSkills LLC, All Rights Reserved

    #ffshore Rig#ffshore Rig

    %latform rig%latform rigRigged u o#

    a latform

    $a% !eerma#e#t or

    drill the &ells

    a#d the# leave

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    15/45© 2001 PetroSkills LLC, All Rights Reserved

    #ffshore Rig#ffshore Rig

    &arge rig&arge rigBottom

    suorted

    'loat to locatio#Si#k !efore

    drilli#g

    Shallo& &ater 

    (fte# referred to

    as i#la#d !arge

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    #ffshore Rig#ffshore Rig

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    #ffshore Rig#ffshore Rig

    &ottle type&ottle typesubmersiblesubmersible

    )arl% desig# for

    deeer &ater * +0feet

    Relaced !%

     ackus

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    #ffshore Rig#ffshore Rig

    ArcticArcticsubmersiblesubmersible

    -ses a

    caisso# tosuort the rig

    .eeded for ice

    flo&s

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    'ackup'ackup/hree to four

    legs

    /o&ed tolocatio# &hile

    floati#g o# the

    hull

    #ffshore Rig#ffshore Rig

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    20/45© 2001 PetroSkills LLC, All Rights Reserved

    #ffshore Rig#ffshore Rig

    'ackup'ackupJacks legs

    do a#d

    hull out ofthe &ater 

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    #ffshore Rig#ffshore Rig

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    22/45© 2001 PetroSkills LLC, All Rights Reserved

    #ffshore Rig#ffshore Rig

    (emisubmersible(emisubmersible'loats i# the &ater 

    /o&ed or self

    roelled

     A#chored or

    d%#amicall%

    ositio#ed

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    #ffshore Rig#ffshore Rig

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    #ffshore Rig#ffshore Rig

    Drill shipDrill ship'loats o# a shis

    hull

    Ca# carr% moreeuime#t a#d

    cargo tha# semi

    .ot as good i#

    rough &ater 

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore Rig#ffshore Rig

    Drill shipDrill ship'loats o# a shis

    hull

    Ca# carr% moreeuime#t a#d

    cargo tha# semi

    .ot as good i#

    rough &ater 

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    #ffshore#ffshore

    Motion compensator Motion compensator 

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    #ffshore#ffshore

    Newer generation rigs use theNewer generation rigs use the

    drawworks for motion compensationdrawworks for motion compensation

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    #ffshore#ffshore

    RiserRisertensioner tensioner 

    /he riser must

    remai# i#te#sio#

    #ff

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    #ffshore#ffshore

    %neumatic%neumaticcylinders arecylinders are

    used to keepused to keep

    a constanta constanttension ontension on

    the riserthe riser

    #ff h

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    #ffshore#ffshore

    (tarting a well(tarting a wellfrom a floatingfrom a floating

    vesselvessel

    #stall temorar%guide !ase a#d

    start drilli#g

    Cutti#gs are

    retur#ed to the

    sea floor 

    #ff h

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    #ffshore#ffshore

    /he# ru# a#d

    ceme#t the

    co#ductor or

    structural casi#g

    &ith theerma#e#t guide

    !ase

    #ff h#ff h

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    #ffshore#ffshore

    /he erma#e#tguide !ase

    co#tai#s the

    &ellhead

    euime#t

    /he B(Ps are

    attached to the

    erma#e#t guide!ase

    #ff h#ff h

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    #ffshore#ffshore

    (ubsea %(ubsea %being loweredbeing lowered

    below abelow a

    semisubmersiblesemisubmersible

    #ff h#ff h

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    #ffshore#ffshore

    (ubsea %)s(ubsea %)sare largeare large

    #ff h#ff h

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    #ffshore#ffshore

    %ossible%ossiblecomponents of acomponents of a

    riser systemriser system

    #ff h#ff h

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    #ffshore#ffshore

    (ubsea wellhead(ubsea wellhead

    #ff h#ff h

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    #ffshore#ffshore

    #ff h#ff h

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ff h#ff h

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ff h#ffshore

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ff h#ffshore

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ff h#ffshore

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ffshore#ffshore

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ffshore#ffshore

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    © 2001 PetroSkills LLC, All Rights Reserved

    #ffshore#ffshore

    #ffshore#ffshore

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    #ffshore#ffshore