Sucker_Rod_Pumping_Short_Course

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Pup & Do@Bot. of StkUp-Stk@Top of StkDo-StkSufae CadSL TopLoad,ls.WaeEuaioSL BotSV Ope)TV Ope)F OSL EPTStoke Legth, iEaple Well: , ell / % FG Rods ith of U-Ahoed Tg slats pup ad.SL DHDaoete Do) Cads:− Sufae Cad: displas the load o the Polished Rod PR oe a puple. The ad shape is a fuio of eethig PPU geoet, SPM SL, pup depth, od stig desig ad elasiit, luid load o pup, et.− Wae Euaio: atheaiall odels the elasi atue of the od stigassuig a dohole fiio fato, & allos the Sufae Cad data to eoeted to epeset hat is happeig at the pup pluge. A oesipliied—ut asolutel free—Rod Desig Pediie Poga solig theWae EQ is Ehoetes QRod & a e doloaded at .ehoete.o.− Pup Cad: displas the luid load o the pup pluge F O oe a puple. The size ad shape of the ad idiate the opeaig odiios adpefoae of the pup.− SL EPT : Efeie Pg Tael the oly pat that otiutes to oigluid. The EPT is euialet to the peetage of the do-stk hee theTV is ope luids oe fo the pup hae to the oto of the tg.− SL DH : total dohole pluge stoke-legth elaie to the sg.k tgItepeig Pup Cad Shapes:EpasioSL EPTDHRodsPup CadSL SL Stretch OverTravelIdeal Cad: full ahoed tg, % liuid illage, &pup i good odiio.Slated: Uahoed tg idiated the ad eigslated at the k tg Tuig Spig Costat.Fluid Poud: sudde ipat load. Ieiiet ad edaagig to pup, ods, tuig, ad GBo. The ipatload auses od uklig & od-o-tg slap.Gas Itefeee o Gas Poud): a oe gadual loadtasfe as gas opesses peuai ushioig.Geatl edues the pupig eiie ad idiatesthe ell is ot puped of ≈Fluid# @ a highe PIP.Hole I Bael: as the oto of the pluge passes thehole ao the hdostai pessue is eualizedaoss the pluge ausig the F O to e lost.Wo Pup: slo to pik up & uik to elease theluid load, due to: TV leakig o pluge/ael ea.SLRod Steth© Dohole Diagosi | Midlad, TX. Fee fo ualteed distiuio. §.Tg BeathigSV: Stadig ValeTV Taelig Vale & Pg PlugePup Chae: Volue etee SV & TVCles of Pup Cad:@: Boto of Stoke: Both ales iiiall losed.#-: Epasio: Pg oes up pikig up the luid load, F O . As F O tasfesfo tg to ods, the tg u-stethes & oes ith the Pg. Ua-hoed tg, eessie slippage o gas epasio iease this stage.#-: Itake: SV opes @ # to adit e luid. No: ods a the full F O .@: Top of Stoke: SV loses as Pg stops aaig the hae.#-: Copessio: Pg egis do. As F O tasfes fo ods to tg theuahoed tg stethes. TV opes @ # he P Chae > PDP.#-: Dishage: Pg oes though the luid to epeat the le.The Causes of Ioplete Pup Fillage:. Puped Of: Pup Capait > Reseoi Ilo.. Gas Itefeee: gas opessiilit itefeigith the oal atuaio of the SV & TV.. Choked Pup: estited ilo to pup pluggedsad-see o eessiel high luid fiio.Copessio Raio of the Pup:− Athig that ieases the opessio aio ipoes the pupsailit to opess the luid i the pup hae & iiizes thepeetage of the dohole stoke lost to gas opessio.− Loge SLs daaiall help, ut iiizig the Usept Volue isthe ost uial & is ahieed : lose pup spaig alog ithgood pup desig tpe of pup, high-opessio ages, et..Swept Unswept Volume Vol @ Top of StkComp Ratio Unswept Volume Vol @ Bot of StkPup Cad Itepetaio: The Pup Cad ol epesets the load o the pluge ψ : so o odsteth o athig aoe the pluge is displaed o it. The ad shape idiates ho the pluge piks up, holds, ad eleasesthe luid load eah stoke. Keep i Mid: the TV & SV ae oe-a hek ales & the ol opehe the pessue elo eoes geate tha the pessue aoe. The ke to itepetaio:The ad shape depeds ol o ho the pessue hages isidethe pup ael elaie to the pluge oeet.− A slo load loss o the do-stk idiates the gadual elease of F O :due to gas opessio o tuig eathig.− A sudde loss o the do-stk idiates luid-poud as the loadtasfes alost istatl as the pluge ell-lops ito the luid.− O up-stk, a gadual load pik-up idiates the pups Chae-P. isot uikl doppig to PIP, idiaig: tg oeet uahoed,luid slippage o pup, o gas epasio—o all oied.ψ Note: eept fo DH fiio assupios, this is tue fo a hoseshoe o doutload-ell istalled etee the Bidle & PR Clap. Fo a easos, ostDos ool used Well Tehs ae the uik-istall PRT Do PolishedRod Tasdue that easues the adial stai hage i diaete of the PReah stoke & uses this data to ak-alulate the F O —& these Pup Cads asoeies e slightl ilted due to sufae isaliget & edig of the PR.
Suke RP Euipet Desig: CosideaiosEuipet Desig:− The pupig sste should e desiged fo the log-haul.− Dot oedesig. If the ell is epeted to pup-of i -oths—at hihpoit the poduio a e aitaied ith a sloe SPM & dosizedpup deeasig the loadigs—geat saigs a e iued tepoail full taig a salle GBo o Gd D Rods s HS Rods fo those-oths istead of upsizig.− Loge SL’s ad sloe SPM is pefeale. Adatages ilude:− With a Loge SL: Rod-steth, gas opessio, o uahoed tgeathig ill osue a salle peetage of eah stoke.− Log SLs iease the opessio aio & the ailit to pup gas, &euie fee do-stks {od uklig} to ahiee the sae pod.− Slo SPM edues: uklig tedeies & od-o-tg ea, odloadigs & the ipat foe of the pluge if it does #Fluid o tag.Rod Desig:Suke Rods ae desiged to ol e opeated i tesio hee K-as. Rodsopeate i a pulsaig tesio alog eah stoke as the F O is piked up &eleased—& as a esult of the stess eesal les—the hae a liited ulife. The API Modiied Gooda Diaga MGD is the idust desig guidethat that atepts to uaif a ods esiated u life ased o the Ma &Mi stess loadigs the od ill epeiee ude the opeaig odiios.Usig this guide, od loadigs ae epoted as Peetage of Gooda. I aooosie eioet, a steel od opeaig at % MGD Loadig isepeted to hae a u-life geate tha × les [o SPM pupig fo~ eas, hile FG ods @ % MDG hae a epeted >. × les @°F. As the MGD loadig deeases elo %, the u-life ieases epo-eiall. Sie the MGD loadig alue does ot take ito aout oosio [ouklig, ishadlig daage, et.] the MGD u-life ust the e de-ated a Seie Fato + elated to the oosiit of the dohole eioet.Fieglass Rods: AKA, FRP Rods: Fie Reifoed Plasi− Weigh % less & ae × oe elasi tha steel, ae oosio esistat otde-ated fo oosie eioets, hae a udesize pi alloig FGods to e used i -/ tg, et. & hae ehaial stegths opaaleto HS-steel ods. Thei epeted u-life if tepeatue depedet.− FG elasiit is adatageous fo fast pupig ells ith high luid leelsleads to pluge Oe-Tael. Thei elasiit is disadatageous fo sloepupig ells ith lage F O SL DH is lost to od-steth. This is h opuped-of FG ells, dosizig the pup ote does ot sustaiall eduepoduio: the dosized d p ieases the DH SL due to salle F O .Steel Rods:− Rod Gades C, K, D, & HS: seleio should e ade ased o theehaial loadigs o eah tape ad the dohole oosiit.− Gd D ods: DC ao, DA allo, & DS speial.− Difeet heat teaig poesses eate difeet ehaial popeies.Geeall, as od stegth is ieased the od eoes oe susepile tooosie atak & ishadlig daage iks & digs that ause StessRises & eoe the uleaio poit fo futue oosie atak.− Sike Bas: ae desiged to aso the DH opessie foes & keep theothe ods i tesio. Thei lage OD distiutes side-loads fo ukligfoes oe a lage aea—so the do ot ut as iisiel ito the tuig.Rod Boes: AKA: Rota-Coeted, Shoulde-Fiio-Held Coeios− The ake-up toue heked Ciufeeial Displaeet puts tesioi the od pi ad fiio loks the o to the fae of the pi shoulde. Thispe-stess put ito the oeio ust e geate tha the up-stk daiod load hih atepts to pull the oeio apat.Pup:− Tg Pups: lagest oe pups d Pg just a / < ID of tg.− Rod Iset Pups, -tpes: ased o hee the hold-do is loated topo oto & hethe the ael is Staioa o Taelig.− Fist efots should e ade to elude gas & solids fo eteig the pupefoe esoig to a pup desig that atepts to aoodate the.− A faoite pup of ous is the S-HVR -Stage Hollo Vale Rod. The uppeTV o the HVR holds ak the hdostai pessue alloig the loe TV tooe easil ope he pupig gaseous luids. It also distiutes luid dis-hage aoss the hole SL geatl iiizig Pup Dishage Leaks, & thehollo ale od is oe sif & less ilied to ukle.Tuig & TAC: Tuig Aho Cathe− Uless ahoed ith pe-tesio, the tuig ill steth ad otateah stoke as the ods pik up & elease F O . This eathig deeasesthe pupig eiie eause ol the et elaie oeet of thepluge to the pup ael otiutes to luid displaeet.− With uahoed tg: o the do-stk, as the ods stat do & egito elease the F O oto the tg the tg stethes aodigl. O the upstk, the tg eoils & heliall ukles [appig aoud the stethedods] ausig the pup ael to iiiall oe upad / the pluge.− Salle diaete pups ill ause less tg eathig. I a puped of ell ith -/ tg: -/ pup . s -/ pup .− E. fo Tg Steth o to alulate the Depth to Fee-Poit stuk pipe:Tbg Stretch ktbg Ltbg FPullktbg 0.4 / A© Dohole Diagosi | Midlad, TX. Fee fo ualteed distiuio. §.tbg,x sec− Note: Steth ihes; L tg i s of t; F Pull s of #s.− k tg = Steth Costat: is ot afeted the gade of steel,ol the -se aea gie o p. o use aoe euaio.− L tg = Legth of tg eig stethed the foe, F Pull .− Pope TAC Seig Poedue: ate let-had tus o uil it touesup oiue to hold the toue as the opeato alteates pts tesio& opessio efoe eleasig the pipe ehes this oks thetoue dohole & full egages the TAC slips so it ill ot tu loose.+ Geeall Aepted Seie Fatos fo Suke Rods:Eioet Gd C Gd K Gd D HS RodsNo-Coosie . . . .Salt Wate . . . .HS . . . .High-Stegth Rods: due to thei heighteed susepiilitto oosio, a od pupig guus eoed loadigGd D ods up to % MGD Loadig usig a . SeieFato efoe esoig to the use HS ods.Load o the Polished Rod PR):F W F FFPRW FPR, Up Stk rf O Dynamic/friction, Down Stk rf Dynamic/friction− W f = Weight of ods i luid opaed to W : eight of ods i ai.− I fesh ate, FG ods eigh % of W & steel ods = % of W .− Dai Loads: esult fo PPU kieais & aeleaio foes.− Fiio Loads: esult fo od-o-tg egageet, luid fiioisous dag, paai sikig, stuig o fiio, & pupfiio AKA pluge dag.− Pope Coute-Weight Balae euies alaig the aeage loado the Polished Rod, thus:CW Bal W 05. FLaoato Measued Loads to Bukle Rods:− Test oduted ith ods i aiLog & Beet, .− Noie the lage difeee eeetee the / ad / ods.Euaio fo FG Rod Spaig: Ihes Of Boto9h 2hFG Spacing 1,000 1,000FG _ Rod SNRod Foe toDia. Bukle/ #/ # / #− Spae fo ee of FG Rods & fo ee to SN.− Slo stokig uits a spae lose tha the alulated ihes.− Fo pope pup spaig espeiall / FG ods due to theielasiit, load the tg ith luid pio to spaig the pup out.rfO
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Sucker_Rod_Pumping_Short_Course

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