04 Circulating Well Control Methods_2

7/23/2019 04 Circulating Well Control Methods_2

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Circulating Well Control Methods1

Wait & Weight MethodWait & Weight Method

Resulting “Pressure Profiles”Resulting “Pressure Profiles”

13-3/8” csg

Shoe @ 3000’

PIT = 16 ppg

MW = 9.5 ppg

New MW = 10 ppg

B! "#$ = 1%.%5”P! &#' = 50 (()s

T*" = 10+000’

B,P = 5%00 ps

%60

95

Pesse #! e We))(oe 2oc#!o's

Wegh! W#! Me!ho4

0

500

1000

1500

2000

2500

0 500 1000 1500

B#e)s P$pe4

Pesse

psg

Casing Annulus Pressure

Drill Pipe (Standpipe) Pressure

Casing Shoe Pressure

Fracture Pressure = 2500 psi

Mai!u! Pressure

at shoe = 205" psi




c7 #(oe co))#s

)) $4 s!#!s'!o #'')s

Top o 7c7 @ B:P

c7 e$oe4

; # s

' g

P . e s s / . e

; # s

' g

P . e s s / . e

S!o7es o T$eS!o7es o T$eFigure 5#1

Surface Casing Pressure profile while circulating outSurface Casing Pressure profile while circulating out

a LIQUI !ic! a LIQUI !ic!



Circulating Well Control Methods$

riller"s Method of Well Controlriller"s Method of Well Control

SI"PP

SI;P

S$p)e #'4 e)#!e) #s! !o $p)e$e'!S$p)e #'4 e)#!e) #s! !o $p)e$e'!

The ')< $s! (e p$pe4 o! o !he we))The ')< $s! (e p$pe4 o! o !he we))!hogh !he cho7e...wh)e 7eep'g !he (o!!o$!hogh !he cho7e...wh)e 7eep'g !he (o!!o$ho)e pesse co's!#'! #'4 e#) !o oho)e pesse co's!#'! #'4 e#) !o o

s)gh!) ge#!e !h#' o$#!o' pesses)gh!) ge#!e !h#' o$#!o' pesse

B,P = SI"PP > $4 h4os!#!c ' 4)) s!'gB,P = SI"PP > $4 h4os!#!c ' 4)) s!'g



Circulating Well Control Methods%

riller"s Method # etailsriller"s Method # etails

?se pese'! $4 !o cc)#!e 7c7?se pese'! $4 !o cc)#!e 7c7

eeps B,P co's!#'! #! #)) !$eseeps B,P co's!#'! #! #)) !$es

"'g s! cc)#!o' se !he cho7e !o"'g s! cc)#!o' se !he cho7e !o & 7eep c#s'g pesse co's!#'! wh)e p$ps (ogh! o'-)'e7eep c#s'g pesse co's!#'! wh)e p$ps (ogh! o'-)'e

& 7eep 4)) ppe pesse co's!#'! #!e e#ch'g s)ow p$p #!e7eep 4)) ppe pesse co's!#'! #!e e#ch'g s)ow p$p #!e

& #))ow g#s !o e<p#'4 #s 'ee4e4 !o 7eep B,P co's!#'!#))ow g#s !o e<p#'4 #s 'ee4e4 !o 7eep B,P co's!#'!

?se seco'4 cc)#!o' !o '!o4ce 7)) $4?se seco'4 cc)#!o' !o '!o4ce 7)) $4

'' 7eep c#s'g pesse co's!#'! wh)e p$ps (ogh! o'-)'e7eep c#s'g pesse co's!#'! wh)e p$ps (ogh! o'-)'e

- o))ow !he 7)) shee! sche4)e o$ I;P !o A;P- o))ow !he 7)) shee! sche4)e o$ I;P !o A;P


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DrillpipeDrillpipe

Gas at SurfaceGas at Surface Gas OutGas Out

CasingCasing

Old mud AA

BB CC

1%00

ps ?

300

ps00

ps

1%00

ps

00

ps

Old mud Old mud

Kick

Old mud

riller"s Method $ %irst Circulationriller"s Method $ %irst Circulation


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DrillpipeDrillpipe

Kill Mud at BitKill Mud at Bit Kill Mud at SurfaceKill Mud at Surface

CasingCasing

Kill mud DD

EE FF

? ?

1%00

ps300

ps

1000

ps ?

Kill mud

Old mud

Kill mud

riller"s Method # Second Circulationriller"s Method # Second Circulation


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riller"s Method # Resultingriller"s Method # Resulting

“Pressure Profiles”“Pressure Profiles”P.ess/.e #! 0e1 We))(o.e 2oc#!o's

".))e.Cs Me!ho4

0

500

1000

1500

2000

2500

0 500 1000 1500

B#..e)s P/$pe4

P.ess/.e

5psg6

Casing Annulus Pressure

Drill Pipe (Standpipe) Pressure

Casing Shoe Pressure

13-3/8” csg

Shoe @ 3000’

PIT = 16 ppg

MW = 9.5 ppg

B! "#$ = 1%.%5”

P! &#' = 50 (()s

T*" = 10+000’

B,P = 5%00 ps

%60

95 Fracture Pressure = 2500 psi

Mai!u! Pressure

at shoe = 2150 psi


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3000 ps

%000 ps

5000 ps

D

%000 ps

5000 ps

3000 ps

D

000 ps

5000 ps

1000 ps

D

Constant BH ! "#$### psi %eing maintained in all t&ree cases

Casing Shoe Pressures WhileCasing Shoe Pressures While

Circulating ut a 'as (ic! Circulating ut a 'as (ic!

50000006000


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+ We)) geo$e! $s! #))ow 7)) wegh! $4 !o (e '!o4ce4 '!oWe)) geo$e! $s! #))ow 7)) wegh! $4 !o (e '!o4ce4 '!o

!he #'')s (eoe !he !op o !he ((()e e#ches !he c#s'g!he #'')s (eoe !he !op o !he ((()e e#ches !he c#s'g

shoe o we#7es! po'!.shoe o we#7es! po'!.

+ E'')# c#p#c! ' ope' ho)e F "))s!'g o)$e.E'')# c#p#c! ' ope' ho)e F "))s!'g o)$e.

+ I c#s'g shoe s c)ose !o po'! whee 7c7 w#s !#7e' !hee s 'oI c#s'g shoe s c)ose !o po'! whee 7c7 w#s !#7e' !hee s 'o

#4#'!#ge co$p#'g shoe pesses !o s'g !he W#! #4#'!#ge co$p#'g shoe pesses !o s'g !he W#!

Wegh! oe !he "))es Me!ho4.Wegh! oe !he "))es Me!ho4.

+ The W W w)) 'o$#)) ge )owe #'')# c#s'gThe W W w)) 'o$#)) ge )owe #'')# c#s'gpesses. G<cep!o's $# (e ' s)$ho)e 4))'g.pesses. G<cep!o's $# (e ' s)$ho)e 4))'g.

Wait and Weight )"s riller"sWait and Weight )"s riller"s




Su**ar+ Re)iewSu**ar+ Re)iew

Po! s peop)e+ e'o'$e'!+ g #'4 we))Po! s peop)e+ e'o'$e'!+ g #'4 we))

Ph)osophPh)osoph & c#!ch 7c7s e#)+ e$powe 4))e+ e<pee'ce o' !he cho7ec#!ch 7c7s e#)+ e$powe 4))e+ e<pee'ce o' !he cho7e

&

7c7s sho)4 (e cc)#!e4 o$ !he we))(oe7c7s sho)4 (e cc)#!e4 o$ !he we))(oe eep (o!!o$-ho)e pesse co's!#'!eep (o!!o$-ho)e pesse co's!#'!

& co's!#'!+ s)ow p$p #!eco's!#'!+ s)ow p$p #!e

& co'!o) (o!!o$ ho)e pesse w!h !he cho7eco'!o) (o!!o$ ho)e pesse w!h !he cho7e

& se 4)) ppe #s !he )'7 !o $e#se (o!!o$ ho)e pessese 4)) ppe #s !he )'7 !o $e#se (o!!o$ ho)e pesse

?se "))e’s Me!ho4 og'#) $4 whe' ' 4o(!?se "))e’s Me!ho4 og'#) $4 whe' ' 4o(!

S!p (#c7 !o (o!!o$ !he we)) 7c7s wh)e !pp'gS!p (#c7 !o (o!!o$ !he we)) 7c7s wh)e !pp'g

04 Circulating Well Control Methods_2

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