Coursework 1 Solution

8/10/2019 Coursework 1 Solution

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EFFIONG JAMES NTIA - MSC SUBSEA ENGINEERING - REG. NO. 201357695 -16 /12/2013OFFSHORE ENGINEERING PRACTICE (NM957) COURSEOR! 1 - E"" #ESIGN

Introduction

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Types of drilling bits

Types of drilling mud

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Given

General data: central North Sea exploration well, drilled from a semi-sub

i!e!, subsea wellhead"!

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#uestion $

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8) $* 8 '+ ' % *&+ $

%nswer:

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#uestion &

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Notes:

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%nswer:

Given:

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13.2 44,

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500

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c=

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Po− P

i(1−

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.. (1)

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................................. (2)

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@ 13.2 (3733 - 905) 0.05195

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SF c=

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The minimum collapse safety factor, S'c ( )!*&+

#uestion

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Notes=

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%nswer:

Given:

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3733

F*% #%& @ 13.2 44, #%+ #%4$

# @ 10912




M+&% #%4$ #: @ >05 @ 123.>>> :

T$% :&:: 8 *% *' SF b=

Pb

Pi− Po

(3)

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SF8 @5,380

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The minimum burst safety factor , S'b ( &!+&*

onclusion

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.eferences

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http://petrowiki.spe.org/Strength_of_casing_and_tubing

http://petrowiki.spe.org/Strength_of_casing_and_tubing

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Coursework 1 Solution