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Fishing Options in Horizontal
Wells
Bill Linn Weatherford International
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Economics - When to Quit
Fishing? ! " #a$imum !a%s &o Fish ' " 'alue Of Fish
(s " (ost Of )idetrac*
Fd " Fishing dail% (ost
+d " +ig !ail% (ost
! " ,,,, ' (s,,, .//0/// 1//0/// Fd +d ./0/// 1/2///
! " ./ !a%s
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Free-point and 3ipe +eco4er%
Free-point tool
5l6a%s chec* stretch and tor7ue - including
left hand tor7ue if 8ac*-off is an option2 Bac*-off 6ith )tring )hot
5t the second free connection if appropriate
to casing seat and 6ell 8ore geometr% and not
in a air drilled hole2
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Free-point and 3ipe +eco4er%
(hemical (utter3oor trac* record in attempting to cut greater
than /291/: 6all thic*ness2
;et (utter(an cut pipe in li7uid or dr% en4ironment2
!o not ha4e to appl% tor7ue to drill pipe2
!oes flare the O2!2 of the fish2
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Free-point and 3ipe +eco4er%
O6ens )plit )hot
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Free-point and 3ipe +eco4er%
)e4ering &ool
&his is not a fishing option2
If attempting to se4er drill pipe not drillcollars0 fire the se4ering tool in the tool
=oint2
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Fishing Horizontal Wells
Hard Formations
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Fishing Horizontal Wells
Soft/Medium Formations
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(atching a Fish in a Horizontal
Well Fishing Loose ;un* Bit (ones > etc2 (ore &%pe Bas*et
#agnet #ill
+e4erse (irculation Bas*et
Wash 3ipe 6 Finger Bas*et that 6ill allo6
%ou to rotate the drill pipe freel%2
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(atching a Fish in a Horizontal
Well )cre6ing into a pre4iousl% 8ac*ed offconnection
+un a slic* scre6-in assem8l% the sameO2!2 as the fish top2
5 s*irted scre6-in assem8l% ma*es the
scre6-in assem8l% trac* at a different le4elin the high angle hole2
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(atching a Fish in a Horizontal
Well &6ist-off O4ershot is the preferred tool2
)oft#edium Formation +un as small ano4ershot as 6ill ma*e the catch2
Hard Formation O4ershot selection ist%picall% no closer than @: of 8it size as6ould 8e the case in a 4ertical straighthole2
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;arring Options and 3lacement
'ertical )traight Hole 3lace =arring assem8l% 6ithin t6o =oints of the stuc*
point if appropriate to casing seat and 6ell 8ore
geometr%2 (ur4e
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Fishing Horizontal Wells
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;ar 3lacement and
ImpactImpulse (alculations 'ertical )traight Hole ;arring at A/0/// pounds o4er pull 6ith si$ 9 :
!rill (ollars 6 Oil and Intensifier ;ars placed C0///D
from the stuc* point generates an Impact of ..0.//pounds and an Impulse of C0.C2
Horizontal )traight Hole
;arring at G/0/// pounds o4er pull 6ith three =oints of
@: HW!3 6 Oil and Intensifier ;ars placed GCDfrom the stuc* point generates an Impact of .0G/9
pounds and an impulse of C0A92
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Fishing Tool B.H.A.
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Wash-o4er Operation in
Horizontal Wells
(ould ph%sicall% 8e done in short sections
in hard formation2
(ost Effecti4e 3ro8a8l%