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Home My WebLink AboutCalculated Design PressuresLT<65 1601 RIVERFRONT DRIVE GRAND JUNCTION, CO 8I501 (97O) 450-7472 marc. kenney@kljeng.com August 18,2023 Garfield County Community Development Department 108 Eight Street, Suite 401 Glenwood Springs, CO 81601 RE: M33 Gathering Pipeline Purpose: The purpose of this letter is to present the calculated design pressures for the M33 Three Phase Gathering Pipeline. Background: Caerus Oil and Gas, LLC owns and operates natural gas facilities within the Piceance Basin of Garfield County. Garfield County Development has requested certification of the design pressures for new natural gas pipelines. This certification must be done by a Professional Engineer registered within the state of Colorado. ASME Design Pressure Formula: The American Society of Mechanical Engineers Code for Pressure Piping (ASME 831-8- 2018) was used for calculating the design pressure, which is the calculated allowable design pressure of the system. Section 841 Steel Pipe has a steel pipe design pressure formula (Section 841.1.1). P = 2St FET D \y'úhere: P = design pressure (psi) S - pipe yield strength (psi) t = pipe wallthickness (in) P = pipe outside diameter (in) F = design factor E = longitudinaljoint factor T = temperature derating factor The input variables for each pipeline and the associated calculations were provided by Caerus and are detailed on the attached spreadsheet. \\klj-solutions.com\dß\Data\Projects\OilGas\CaerusOilGas\2l0T-00252_Environmental&Construction Group9l0T-00252.33 M33 Pipeline Calcs\ìví33 Gathering Letter to Gar CO 2023.08.17.docx Page I of 5 Results: Three pipe segments were analyzed using the design pressure formula from ASME 831- 8-2022 and the results are in Table 1 below. Table 1: Theoretical Maximum Allowable Pressure Pipeline Theoretical Maximum Allowable Pressure (psi) Segment 1 (Buried): New X52 lnternally Coated with NOV Tuboscope TK70. 10' 3-Phase Gathering 2,542 Conclusions: KLJ, lnc. agrees with Caerus's choice of design variables and the specified pipe materials for each line/application. The actual operating pressure of these Caerus systems will be at or below 250 PSI which is well under the calculated allowable design pressure. Further, each of these pipelines will be hydrotested as part of Caerus's pipeline construction quality assurance program. Please let me know if you have further questions, Marc Kenney, PE Attachments: Calculation Spreadsheet \\klj-solutions.com\dfstData\Projects\OilGas\CaerusOilGasVl07-00252_Environmental&Construction GroupUl0T-00252.33 M33 Pipeline Calcs\M33 GatheringlettertoGarCO2023.0S.lT.docx Page2of 5 4tÊtË 0812312023 Select Pages from ASME 831-8-2022 \\klj-solutions.com\dfs\Data\Projects\OilGas\CaerusOilGas\2 l0T-00252_Environmental&Construction Group\2107-00252.33 M33 Pipeline Calcs\M33 Gathering Letter to Gar CO 2023.08.17.docx Page 3 of 5 ASME 83 7.9-2020 (Revision of ASIHE 831.8-2018) The American Society of þlecñanicsl Engineers Gas Transmission and D¡str¡ bution P¡p¡ng Systems ASilE Code for Pressure Pipitrg, 831 At rxrERtATrorAL PrPnG coo¡o Lrcensed lü nìaren Êlliott Lasl opened 1tl3l22 $ingþ user liceme only üopying and netro*irç prohibited \\klj-solutions.com\dfs\Data\Projects\OilGas\CaerusOilGasP l0T-00252_Environmental&Construction Group9l0T -00252.33 M33 Pipeline Calcs\M33 Gathering Letter to Ga¡ CO 2023.08.17.docx Page 4 of 5 ts¡{D831.&2020 t¡10.1 lntont foJ tt ¡hould br cmphrsirrd th:t locrüon Ghr (1, 4 3, or $ ¡l drecibrd tn ùr prrvtour pen¡rrpbs ir drfinrd ¡¡ ùr ¡raenl dræripdon of e ¡ropephic ene hevin¡ cortein cb¡r¡ctrri¡tic¡ ¡¡ ¡ b¡¡i¡ for prr¡cribint tìe typrs of drígr, con¡È'r¡cdon, ¡nd mctbod¡ of t*ting to bc u¡cd in tbosc loc¡tion¡ or in ¡rr¡¡ th¡t em comperebla. A numbrrcd Loc¡tion Cl¡¡¡, ¡uch ¡¡ Loc¡tion Cl¡¡¡ 1, refcrr only to thc ¡.o¡r.phy of ßh¡t loc¡tion or ¡ ¡imil¿r ¡ra¡ ¡nd dor¡ not nccas3trily indic¡¡c th¡t a darign fector of O.zz rvill :ufñce for ¡ll con¡m¡ction ín that particuler loc¡tion or årc¿ [c,g. in Loc¡tion Cl¡¡¡ l, ¡ll ¡e¡'i¡l cror:ingr requinr e d*ign f¡ctor of O.6¡ ¡cc p¡r¡. 84r.1.9(blJ. (b) whrn chrifying location¡ for dctrrmining tùo del[n factor for pipdinc cotrstruction end terting that ¡hould br pmrcribrd, duc con¡idrr¡tion ¡b¡ll be givcn to tùc po*ibility of tuturt dcvcloprncnt of tl¡s ¡rt¿ lf åt rh. t¡s¡c of plennin¡ r ncrv piprlinc tùl¡ fun¡rc dcvcl- opm.nt ¡pp.¡r5 liftcþ to be suftcicnt to chan¡c thr Loc¡- tion Cl¡s¡, thi¡ ¡h¡ll bc tahcn into conridcr¡tion in tbc dcsfn and tertirç of rüc propo¡ed pipclina 84I STEEL PIPE 84t.1 $reet Plplng S!Éems lÞslgn Requlrements {un¡ 8¡ll.l,l !}tcrt Plpc lhrl¡n Fomutr (oJ the deri¡rr prcrlunc for srrl ¡as piping ryrttmr or tle nomin¡l rv¡ll tbi*,¡¡r¡¡ for e ¡ivrn design prc:urc ¡h¡ll bc de¡.roimd by ùe followiry formule (for linite. tion¡, :ec prru 341.1.3)r (U.S Cunonrcry UnftrJ P = 3å!¡'s¡ f) (Sf ünitrJ I = 3!S[ps¡ t S . ¡pecificd mlniuruo yidd rtrrn¡th, prt (MPe), rdpuletcd in rùc:prciñcrtion¡ under rrytieh ùc plpr wæ purcherd fron rùr m¡nuf.ct¡r.r or drtrrmincd in ¡qcordrncc wlth p¡r¡t. 8r7.1.3(t) ¡nd 8ll.t.{. Tbo rpæifird minlmum yirld rtnn¡rb¡ of ¡omc of tbr mo¡r comoonþ u*d pipiq rtrcl¡ whosr rpcdñcrüonr en incor- porrtrd by rcfrrencr hrrein ¡rr ubul¡trd for convcnicnce in Mrndetory þpradtr D. 1 . tcmparaturc dcrating f¡ctor obt¡incd from Î¡bh 84lr.8-l ¡ - nomin¡l wdl d¡icltnc¡¡, in. (mm) CÁUTlOil¡ TbÈ c¡utio¡¡¡ï' Dot. ir ¡o¡m¡¡d¡tory. Srrrl pipc D¡y arb¡bit pro[ou¡cod difrn¡cc¡ ¡! ¡n!¡$b brttvcc¡ tùe l,oryiudinel ¡¡d cirlt¡nfcnndd di¡rr{o¡¡ fhr orira- t¡t¡o¡ of tùa 5Baryù mÍ ß.it blisùrd bytùc plprpnoduc :pcciñceüon dopodin¡ o¡ pip. rirc eld naùod ol pipt mrlo.!. Consrqucotþ, pipr oey ùeva r qudiûcd sF.rSù i¡ ¡¡ ¡*i¡ oric¡t¡don û¡l doar oor co¡brÐ to ùa orir¡t¡- 6oa of tùc prfudprl loediog or sr¡* Ibc ¡¡rr¡s r¡.td to b¡ ¡rr¡¡r of ùr fi¡¡¡d¡rú t rl orirnr¡tio¡ u¡cd to drteini¡c co¡fo¡u¡¡cr of pi¡r to rùc nbiuun rFaq:tù rlq!¡¡roaEt of üG rd.ctGd tr¡da ¡!dto co¡sidrrrrürtå¡¡ü¡ hnrudcd urcs oreaticiprt d 3.ryic. eonditio!¡ of iùe piprlb. itÍrD werrrat np¡úcmontet trcdngof ùr ril.stt propüdrr i¡ oùar odeütrdo!¡. þ) tttboto Dlr < 3O thc followln¡ dtrrnetivr pnr3iu¡. dcrign fonnule may bc uredr (US Customaty Unts) p = -3$-psal)-f (St Unil5, r,= 39¡¡7l)-r Nomcncl¡turo is tbe r¡mc ¡¡ ¡p.c¡f¡.d in ¡rerr. 8{r.r.r(¡). ld thc derign factor for pipdinr: in l¿c¡tion Cl¡¡¡ 1, Divicion t ir bascd on gas pipdinr opcretionrt c:lprricncc et oparåtion lcvd¡ in oxcc¡¡ of tho¡e pnviourþ r.com- mrnded by ùir codc. tt should bc no¡ed th¡t tbe u3er m¡y be rcquircd to change out cuch pipc or raducc prerur. to 0.72 SMYS m¡¡c¡nnrm in ¡ccord¡ncc with prra 85{2. 8,¡fLL2 Fracture Controt md Ant¡t {zo¡ fa) F|¡ctu¡c lorgråncsr O'itcnbn.A fr¡cn¡¡c tou¡hnesr criterion or othcr m¡tùod sh¡ll br rprcifird to control ft¡c- ruru propegation rdrrn one of d¡r followiry ¡r truc¡ (1) e pipdinr ir dcri¡ncd to oporen rltùrr et e hoop ¡cr¡¡ ovrr{0!}ô úrorub8096 ofSHYSin ¡Þc¡ NPS 16 (DN 400) or l¡rgrr wbc¡r þa f,- p= p= nomin¡l out¡idr di¡mctcr of pipc, in (mm) longitudinrl wcld ioint guality f¡ctor obt¡ined from Trbh 8{1.1.7-1 [rer elro p¡n 817.1.3(d)l derign factor obt¡incd from lrbh 8{1.1.6-1. ln icttint tbe v¡lu¡¡ of thc dcrign f¡ctor, F, duc con¡idrr¡tion h¡¡ bccn givcn and ¡llorv¡ncc has b¡rn m¡dr for ùc v¡riou¡ undenhicknc¡¡ tolerrncæ pnovidrd fur in thc pipc rprciñcetionl li¡t¡d ¿¡¡d epprovcd for uragc in ùi¡ Codr, deri¡nprr*urr, prig (kPe) (rec dropen û1L1.3) 39 L¡cÈnsêd {ô nnren.ellrotl Lasl ûpenêd 1BtU22 Sinqte user license tnly top}.ãng í}nd n€tv¡ortlñg prÕhib{ted \\klj-solutions.com\dfs\Data\Projects\OilGæ\CaerusOilGas\2107-00252_Environmental&Construction Group\Z107-00252.33 M33 Pipeline Calcs\M33 Gathering Letter to Gar CO 2023.08.17.docx Page 5 of 5 <<5t-l 143 Diamond Avenue Parachute, CO 81635 1601 Riverfront Drive Grand Junction, CO 81501 Pipeline Calculations as per ASME 831.8-2018 Gas Transmission and Distribution Piping Systems for the M33 Gathering Pipeline From Sect¡on 841 Steel Pipe: P = (2*S*t)/D*F*E*T P = Design Pressure (psi) S = minimum yield strength of pipe (psi) t = nominal pipe wall thickness (in) D = outside diameter of pipe (in) F = design factor E = longitudinaljoin factor T = temperature derating factor Segment I (New lnternally Coated 10" Buried 3-Phase Gathering) ERW APISL X52 PSL2, 14-16 Mills FBE, Carbon Steel with NOV TK-70 lD Coating & UB Sleeves þ = 10.75 in OD | = 0.365 in wall thickness g = 52,000 psi P = 0.72 Class 1, Division 1 f = 1.0 Electric Resistance Welded J = 1.0 250F or lower p = (2*S*I)/D*F*E*T design pressure (psi) P = 2,542 psi Calculations.xlsx Page I of 1