spe 178888 stuck pipe prevention

8/18/2019 SPE 178888 Stuck Pipe Prevention

1/16

SPE 178888Stuck Pipe Prediction Using Automated

Time Modeling and Data Analysis

Chuck Salminen, Curtis Cheatham, Mark Smith, Khaydar

Weatherford


2/16

Stuck Pipe An !ld Pro"lem# $ut Still Rele%ant

• Project initiated in late 20!

• "rillin# records indicated that stuck $i$e %as one of the l

causes of lost time

• With this in mind, stuck $i$e $re&ention %as selected as

ser&ice to 'e de&elo$ed

SP( )**** • Stuck Pi$e Prediction +sin# eal-.ime Modelin# and "ata /na


3/16

Stuck Pipe Mec&anisms



4/16

Data 'riteria and Parameter Selection

• "etection mechanism should 'e 'ased on time-"ased d

• "etection should 'e $ossi'le durin# all common drillin# a• )0 or more of stuck $i$e incidents occur off-'ott

• "etection methods should utili1e commonly a&aila'le dri

• Success %ill 'e defined in t%o %ays• Successful detection of actual stuck $i$e e&ents %

%arnin# time• Minimi1ation of false alarms



5/16

(istorical Data Analysis

• .hirty four 34!5 historical instances of stuck

$i$e %ere studied to determine root cause ofeach

• Primarily in (a#le 6ord Shale, +S/• Most common mechanism is hole $ackoff

due to %ell'ore insta'ility or insufficient hole

cleanin#• Study sho%ed that the 'eha&ior of 7critical

$arameters8 can relia'ly indicate im$endin#

stuck $i$e



6/16

'ritical Parameters



7/16

Detection Met&ods



8/16

Dept&-$ased T&res&old Determination



9/16

Alert 'riteria and )eig&ting

• 9nitial efforts used a 7$ass-fail8 criteria

• 9f de&iation : rate of chan#e is outside acce$ta'le #enerate an alert

• .his criteria is far too sim$listic since• 9t does not allo% that one $arameter may 'e out o

others are not, $ossi'ly indicatin# that no $ro'lem

• Si#nificant &iolations of acce$ta'le ran#e are not #%ei#ht than small &iolations• / %ei#htin# system needed to 'e de&elo$ed



10/16

Dept&-$ased T&res&old Determination



11/16

Adaption to Time-$ased Drilling So*t+are

•


12/16

Adaption to Time-$ased Drilling So*t+are


?ri#inal de$th-

'ased threshold /ial s$ee

adjustmen9n$ut $arameter

adjustment


13/16

'ase (istory 1 Stuck Pipe )&ile $ack Reaming !ut



14/16

'ase (istory , ear Miss )&ile $ack Reaming e



15/16

Summary# e.t Steps# and 'onclusions

• .he method %as found to 'e effecti&e in detectin# stuck

&ariety of %ell ty$es, ri# acti&ities, and @=/ confi#uration• 9n all cases %here calculated risk eceeded A0, a stuck

miss incident occurred %ithin the net 2 hours• 6uture de&elo$ment %ill focus on automatic root cause d



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spe 178888 stuck pipe prevention

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