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Q 7th OffshoreSouth E&t IWaConference,Singapore2-5 Febtuary1985OSEA 88168CompletionSystemsfor LargeDiameterCasingby.& Wekich,8nkerSandControl(USA}M.Lomfw Wker *nd antrol WA);a nd D . Legge tt BakerSandControlSmdoeeP@Ltd. (Sing%ml

TMSpaper wee preparedfor praaantatlorrtrho7th Offebim South 8aet Ma Confamnm held In Slnctwwa,2-5!WMuarYW8.Ttrlepaparwae9elactodorpraaantationbyarowammacommltfemfwml ravbwoflnformationnanww~nwnwtiwwmwti wl~w~wwwww~ wt~aw(s).

A.28TMcrCtmplation operations, for oil sad gas WS1lS, qr.umakly par fomad in caaing 8ixa8 n ot Oxcced in g13-3/8 (34.0 cm) with the majority of comylottonabaing par formad in 9-5/8n (24. S cm) cud armllar.Aa such, th s qvailability of completion qquipmant,for Iarga diameter caein~e, becomae qtremelyMm2ted or nonexistent. Occaeiomally, condlttonemay qxiet ubich requiro F68 c mplet ion to bedeeign ad in q caa in g size larger than 13-3/8 (34.0cm). Xu order to complete in theee caai~ qsee,qpectal equipment met be deefgnad.Thie paper dtecunaee th e demtgn crlte~ta,development, an d qbsequenc uea of perforating andgravel pack qquipment generated for uee in 20m(50.8 cm) caaina. The theoretical qpproecb to theqvolution of thie qquipment ie qpplicable to thedavalopmant of additional qyetama.2mTltoDvcT20mWhile completion qquipment te kge~y deeigned for9-5/8 (24.5 cm) cseing eizae and mallet, withnoms equipment qvailable up to 13-9/8 (34.0 cm),perforating qd waval pack qquipmant ie virtuallynonaxtatent tn qaee greater than 9-S18W (24.5cm). Due to apec~fic well completion requirementIt may be advantageous to be able to complete inth e Largez d iamet er caa%ng eizee. Wit!3qquipmentbaits unavailable for theee larger qzee, epecialequipment wet be developed.The haraln diacueeed completion qystem hae beennpacifically developad for 20 (50.8 cm), 133 lb/ft(198 kg/m) caeins. In thie qpplication q veryqhallov, 10U praeeure, gae zone axiete beneath aplatform. It fe tbe operntors iutant to eet 20(50.S cm) caeing qcroee the zone qnd attempt toblow dovn th e gas. Folbv2n8 dtpletion of the sone,th e 20 (50.8 cm) wallboret can be cleened ou t qnd

/

Illuatratione qt qnd of paper

deepened to tba primary objoctive zonee. Furtherdavmlopmant drill:ng could than co-ante with 1888rick and lower coeta.DESIGNPMMET2R8IUth the primary objecttve of the project being th edapletion of tba reoervo%rg tbe reeultantMmplotion bad to be imatalled in the metmffic%en t manner ponetble. Ouing to tbe leee than500 pai (3447.S Wa) qattc reeenrotr preeeure qndEbe deaf?. to depleee qe quickly u poeelbla, theperformei~ qyetem bad ZO deiivor tbe bi@eet q.otdmeity poeeibla with th e ~reateet amunt of chargeperfomznce. Tbie would provide for tbe mzximmflow rate by m2m2mizfng premmme loee through th ecomplectong A qyetama analyets plot, %. 1Saupporte thie and, tbue, foetered the need of qepeciallsed $arforatina gun.2xiet in g p er for at $n a qquipment wuld have requiradmdttple tr;pe to qcht-e tb e dae%red perforationqhot dmaltys and vould not h avo been qble t o offerpositive. ehot orientation. Porfomance uould alaosuffer qe clearance betwson th o gun outeide d$ameterand the caeing ineide diameter vould beva beendifficult t o con tr ol.Consequently, q parforatlng qyetea wae needed thatwould offer q very b%gh shot dene%ty tith maximKMperforamnce, vhila affording poeitive ehotorientation.IWe to th e zone being g@a, poeitive well fluidisolation and preaeure containment bamma acriteria. Tbi8 precluded th o use of axieting lamgadtammter qquipment, vhich tvptcally have lead qaalathat qre not capable of qfect2n8 q eustable tjaaa~al. AdditfonaXly, tba orlgtnal daeign paramateracalled for the uet of q retr ievable seal borapackar qe t he per fo ra t ing packer.with t.ha ~xpreeeed desire Lz underbalancaperforate~ th e requirement far poeitive 888p;aeeure concninmant, qnd ti-e need for qecuracaatng anchorage, q qpacia~ pmcimr and aaeociatmdgravel pack qoaambly vaa qaeect$al.

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lga2 Ch@atimWatctlBforg31sJLmaZn Wnaih r a t t on of th e fundamental nuda of tbaafosaantiowd perforating and gravel pack amta=eg9arketia8tachdaal aopportpar aoanel t heor2a ed qW*C capletion hookup. fh2a wu tasparad by th odmdra to uaa ae mob aadatfngproduct deaigna uvu avai2able wM28 aatiafytng the raquiraents ofthe aya te9*GcMed by the englnaering dodsn groups, theresultant parforathg Siao* p, * . 2S mdo uae offour 5 (12.7 -) Parforat- SUUG -ted ~para21el tu each other aad connected t o q em ufb28 quadruple t ubing conveyed;*&ux%Jn U8-lY ~ IMo to obtti auximm ehot density of ~ aktm ~~~afo::(appr t i to ly 131 shots per 9atu).the Coafi.gcratfons BexinA9 Cbaram P=fo~@ ~8tta2tledW2th law Claarallca in all radtidlractkna wb22Q retafn2ng the ability to waah w ort he gun abac ld thd well amd up* TbegunaaradmultauaaualY fired by a d- tr-for b~kthat re12ably convartm q singlo prima-cord fnptiato focr actputa. A wiralfma conveyed ftrlng h-dwu uaad to 2n2tiato dctonacion of tht gunaaaeBbly. With th2s aaaembly, the banaf%tm oftub2ng oowapad underbalanoad wrfor8t2na woraraaliaad ca2ag f iold p rova a t@cluMquos.Xn ava2uat2ng the ~mal paclc hoakp, :t vuev2daat that not only would development of & bottcmbole u**lY be rquirad, but, likely aim anant2ro cwpla9ant of 89n2co taolss f.e. **tt*tool and eroaaovar tool. Bacauaa tha 89mice toolmwould be 8pOCidi8d, aad would l%kely aot fiodaubmquent WO, tk ~aWOl pSCk hOCk Up, ~i~. 3,waa configcrad to w t ui8t2ng grmal placenntequlp,eat . M wu acc~lishad by 8p8C~ 6(15.2 a ) a ea 2 boros ia such s way tba: q 6 (15.2cm) gravel pack cromovor tool could be wed u ttwould in q mavant%onal manmr. Thus, the nwabmof aarvtca tools war significantly rsduced,rqu%rfng only them neededto sat and ratrieve thepacker.Submaquant t o tlm baa.tc packer rqutrauants o thedo#Sgn spec2ficationa ware defined u 8 3000 psi(20,6S5.0 kP@ presaura rsttig at 250F (121*c)W2th q 13-3/8 (3490 088. saal.bol.nt~ ~haido dfamtu. dutgncanflguratton war modeled aft*r an uimt%ng gravelpack packer, this due to tho except ional record off%old porforunco of the baaic dutsn. fbe roaul tvu th a world q Iarsaat retrievable qi borepac ker, Fig. 4, dmsigned for 20 (50.8 c=), 133lb/f t (19S ks/D) aaeing.Driven by th n n aodm of the industry, naw qquipmntdesigoa evolve t o now include the world # largestgraval pack packer and parf omting aashly. ThusDthe f iold provan bmnafits of tub- conveyedpar foritfag and the cmplet~on q f ic%mnayatta%nablo with qstabliah ad gr aWal pack placaantproceaaom will ba realtaed.UmcLusxous 1fba dawelogmant of this @wi~nt baw res~ted fith e qbillty to generate dmtlar qystau. Baaed

UPOX axparienc9, tho f ollawing obserwattana andconcluaiana qre off qed.1. Bohanacd product%an capabtlitiem may beloalired through th o qbility to apply

undorhalamced ,%bing conre7ed perforating w2tha ~~tm. ti.~ad for tbe qpec:f it qpplication.2. Ef ffctency 2U wellsite oparatiana qre qnbanmdthroughthe abtiity to utilixe uncoqtlicated,field proven qqdpment and techniques,~sTh e qtkrs thank the mmnagaaentof Baker SandControl. for pwdaslon t o publish this paper andthe Eubineering Department of Baker Sand Controlfor chair abilitv to dawelou qauirmant fra thehypothetical du~gnaCroup.APFsWMXSbplifiod runn2ng and1. Set 20 (50.S cm)

of the- Ap~l~ed Sngineer2ng

operational. procedure:SC-IL Suap Packer on tub$.os.

2. Make up and run the following parfaratinsaaaambly, Fis. 3:& Indicator Cdletb. Quad 5 (12.7 cm) Perf oratina Guns

394.5.6.7*8.9*10.11.

c. Uirelti Canvey& Firing Heti (WCFE)d. Ported Di sc & 88WBb lyq. Tubhg and Shock Abmorbers, 88 requiredf. Ret rieva ble Eaolomll Packerg. WorkatringRun tn th e hole, locate the guns on depth andsot t h o packer .!lstablieh t ho desir ed underba la nce.Sig up the surf qce qqui~nt and test.Big up wt rel in e.Rue in the hale with the WCFS, on wirtline c anddetonate tha gu m.Flaw well 88 desired.Open packer bypaqs and ravarse circulate tcktll the we l l .Pull out of holelfaka UP and run the following gravel pantaaaeribly:a. Nultipla Acting Ind%cator Seal Aasamblycb. 13-3/Sa (34.0 CU) Tell-Tale Screen.c. 13-3/S (34.0 CB) Gravel Pack Screend. 13-3/8 (34.0 cm} Blaak Pipeq. 7 (17.C cm) Lower Bxtenaionf. Sliding Sleeva with 6 (15.2 cm) Seal Eor{Saceptacleg. 7-5/8W (19.4 cm) Upper Srtenaionh. 6 (15.2 cm) Seal Sore Receptaclei. P-5/8 (24.5 cm) Cas2nB Sxtenaion

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120 13.

14.15.16.17.18.19.20 .

6: .Sottl& Tool i88aably aa6 Crossavar ToolL. WorkwtrlngMC 29 bola titb tba Brawl psck UstilyoSoap imco tbo Suap Packer to locam tho Gr8volPack A8tily*828 up * mrfaco OqU2pt ad test.Drop th9 packsr sstthg ball ad qot tho Gavalpar k p uk c r .~Um:tmvol pack trutnnt uatil q clout

Ravern out * excosa slurry.Pull oct of holo uith tho crossover tool.Eun ti tbo well w2th tha production coals andtub-.Bring u811 in slwly.

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