Proyecto PVT

download Proyecto PVT

of 15

description

pruebas PVT

Transcript of Proyecto PVT

  • Universidad de OrienteNcleo AnzoteguiEscuela de Ingeniera y Ciencias AplicadasDpto. Petrleo- Qumicareas Especiales de GradoIngeniera de Yacimientos.

  • NgcZiNgYi)sepNl

    XiYi)tanqql, BN/dTanque

  • El mtodo directo parte de un volumen base (Vs) de muestra a una presin P=Proco, se tiene:ProcoP1Ngcl

    Vl1V1, gclLa composicin del lquido retrgrado se determina haciendo un balance de masa global entre las presiones Pk-l y Pk.PK-1PKNgck-1Yi, K-1Nik-1Xi, K-1NgckNgckYi, KNikXi, KConceptualizacin de la Prueba CVD entre las presiones Proco y P1 (Proco>P1)Conceptualizacin de la Prueba CVD entre las presiones Pk-1 y Pk (Pk-1 > Pk )

  • Prueba CVDSeparadorDonde: Ki = Yi/Xi = constante de equilibrio del componente i. Yi = Fraccin molar del componente i en la fase gaseosa. Xi = Fraccin molar del componente i en la fase lquida. P = Presin absoluta, lpca. Fi = Factor de caracterizacin del componente i.

  • SGS Venezuela S.A.Empresa: S.A MENEVENPozo: TM-39 (CO-F1)

    CARACTERSTICAS DE LA FORMACINNombre de la formacinYac. TM-39 (Arena CO-F1)Presin Original3457 (BHP)Data de Produccin original-R.G.P. Original21194 PCN/BNPresencia capa de gas-

    CARACTERSTICAS DEL POZOIntervalo produciendo6586 6598Temperatura del yacimiento225 F (BHT)Estado del pozoESSFecha5/5/84 R.G.P. ltimamente21194 PCN/BN

    CARACTERSTICAS DURANTE EL MUESTREOMuestras tomadosDel separador de pruebaFecha27/6/84Estado del pozoFluyendoPresin del Separador60 lpcmTemperatura del Separador80 FR.G.P. durante el muestreo21194 PCN/BN

  • Ambos cumplen con las especificaciones C1 < 2% y C7+ < 5%Correcciones por presin y temperatura del lquido obtenido

    Datos de PVTRGC)sep =21194 PCN/BlPresin =74,7LpcaTemperatura=80 F

    P0,0238LpcaT0,2545Fln46,6604Lbm/pie3L)sep=266,0641 Lb/Bls

    Comp.YiXiMI (lb/lbmol)MI*Xi (lb/pie3)Mi*Xi/CO20,04610,001844,01000,079251,54000,0015N20,00100,000028,01000,000049,29000,0000C10,76870,016816,04000,269518,73000,0144C20,07460,008430,07000,252622,19000,0114C30,05750,027744,10001,221631,63000,0386i-C40,01560,019558,12001,133335,10000,0323n-C40,01730,030358,12001,761036,44000,0483i-C50,00830,036272,15002,611838,95000,0671n-C50,00580,032872,15002,366539,34000,0602C60,00290,047786,18004,110841,40000,0993C7+0,00220,7788145,0000112,926049,29312,29091,00001,0000653,9500126,7324413,903102,6640

    Comp.Yi*NG)sepXi*NL)sepZexp (fracc)Zcal (fracc)% ErrorCO22,57520,00380,04460,044500,23451N20,05590,00000,00100,000963,62210C142,94100,03530,74280,741470,17967C24,16730,01760,07230,072200,13531C33,21210,05820,05650,056420,14051i-C40,87140,04090,01570,015740,26282n-C40,96640,06360,01770,017770,40041i-C50,46370,07600,00930,009310,11362n-C50,32400,06890,00670,006781,16369C60,16200,10010,00440,004522,78867C7+0,12291,63500,02900,030334,583581,00001,00000

  • Datos de PVTP roco3814,70LpcaVs1,00ft3T prueba685,00R

    Nt=0,57931

    ClculosPresin (Lpca)VL (fracc)Vgci (fracc)ZgciNgci (Lb-mol)Ngc (PVT)Vkngci(Lb-mol) ngci.Acum(Lb-mol)Nli (Lb-mol)3814,70,00461,00000,89590,57930,04300,00000,00000,00000,000003414,70,01230,98770,86390,53120,11620,07320,03940,03940,008793014,70,01990,98010,84160,47770,20450,08830,04300,08240,019252614,70,02800,97200,83080,41620,29540,09090,03890,12130,041792214,70,03370,96630,83110,35030,39780,10240,03710,15840,070531814,70,03760,96240,84270,28200,49900,10120,02960,18810,109251414,70,03920,96080,86930,21270,59850,09950,02200,21010,156451014,70,03680,96320,90360,14720,69880,10030,01530,22550,20670614,70,03310,96690,93960,08610,80010,10130,00900,23450,25878

    YiPresin y Componente3814,73414,73014,72614,72214,71814,71414,71014,7614,7CO20,04440,04420,04400,04370,04360,04350,04350,04370,0439N20,00090,00080,00070,00070,00060,00060,00050,00040,0003C10,74810,75350,75850,76300,76670,76990,76920,76580,7615C20,07200,07170,07140,07120,07100,07100,07120,07150,0719C30,05600,05520,05420,05310,05220,05100,05170,05250,0534i-C40,01560,01510,01450,01390,01360,01320,01320,01350,0139n-C40,01740,01710,01670,01620,01580,01540,01510,01560,0161i-C50,00880,00810,00760,00730,00680,00660,00640,00660,0069n-C50,00640,00580,00550,00520,00500,00480,00470,00470,0049C60,00420,00390,00370,00350,00330,00310,00310,00330,0036C7+0,02620,02460,02320,02220,02140,02090,02140,02240,02361,00001,00001,00001,00001,00001,00001,00001,00001,0000

    Clculos de Xi Presin y Componente3814,73414,73014,72614,72214,71814,71414,71014,7614,7CO20,00000,05740,05560,05260,04950,04770,04640,04560,0451N20,00000,00740,00650,00340,00280,00200,00180,00150,0013C10,00000,39750,45580,57000,62830,66820,70000,71950,7304C20,00000,09150,08880,08160,07850,07580,07410,07310,0727C30,00000,10790,10630,09020,08000,07360,06570,06170,0595i-C40,00000,04810,04640,03570,02850,02430,02100,01890,0176n-C40,00000,03690,03690,03150,02740,02450,02220,02010,0190i-C50,00000,05430,04270,02700,02170,01700,01420,01210,0109n-C50,00000,04540,03200,02100,01560,01240,01030,00890,0080C60,00000,02370,01830,01260,01000,00820,00670,00560,0051C7+0,00000,13010,11060,07440,05750,04610,03780,03300,03040,00001,00001,00001,00001,00001,00001,00001,00001,0000

  • Datos del separadorTemperatura80FPresin74,7Lpca

    Propiedades del seudocomponenteDensidad Relativa0,7896T. de Ebullicin Normal, Tb, R818,41Peso Molecular 145Presin Crtica, lpca352,11Temperatura Crtica, R1134,56

    Comp.YiXiKiLog(Ki*P)sep)biTb (R)FiH2S0,00000,00000,00000,00001742,0384,00001,3105CO20,12130,03963,06312,35951819,0351,00001,8138N20,00040,00080,50001,5723555,0140,00002,9365C10,79720,12296,48662,6853805,0201,00002,5142C20,04640,03551,30701,98961412,0332,00001,6382C30,02010,04690,42861,50531799,0416,00000,9930i-C40,00410,02030,20201,17862037,0471,00000,5526n-C40,00540,03540,15251,05672153,0491,00000,3979i-C50,00170,02620,06490,68552368,0542,0000-0,0162n-C50,00140,02750,05090,58012480,0557,0000-0,1402C60,00140,08330,01680,09882780,0616,0000-0,6352C7+0,00060,56160,0011-1,09804051,1943818,4095-2,5521

  • Valores de KiComp.3814,73414,73014,72614,72214,71814,71414,71014,7614,7CO2-0,77020,79100,83040,88020,91160,93660,95890,9729N2-0,10820,10750,20720,21150,29360,28440,26130,2239C1-1,89581,66421,33851,22021,15211,09891,06441,0426C2-0,78380,80370,87240,90480,93640,96130,97770,9896C3-0,51140,50980,58880,65230,69310,78670,85110,8974i-C4-0,31410,31270,38920,47760,54220,62910,71600,7884n-C4-0,46370,45200,51470,57570,62960,68090,77750,8482i-C5-0,14930,17800,27010,31280,38790,45160,54430,6328n-C5-0,12790,17200,24810,31970,38590,45700,52650,6123C6-0,16470,20180,27730,32990,37810,46550,58540,7119C7+-0,18910,20970,29850,37220,45300,56660,67870,7756

    Criterio de Hoffman para CVDComp.Log(Ki*3814.7)Log(Ki*3414.7)Log(Ki*3014.7)Log(Ki*2614.7)Log(Ki*2214.7)Log(Ki*1814.7)Log(Ki*1414.7)Log(Ki*1014.7)Log(Ki*614.7)CO2-3,42003,37743,33673,28993,21863,12222,98812,7767N2-2,56762,51052,73382,67072,72652,60462,42342,1387C1-3,81113,70053,54403,43173,32033,19163,03342,8068C2-3,42753,38433,35813,30193,23033,13352,99652,7841C3-3,24213,18663,18743,15983,09963,04652,93632,7417i-C4-3,03052,97433,00753,02442,99302,94942,86132,6854n-C4-3,19963,13443,12903,10553,05792,98372,89712,7172i-C5-2,70742,72972,84892,84062,84752,80542,74222,5900n-C5-2,64012,71492,81202,85012,84532,81062,72782,5757C6-2,75002,78412,86042,86372,83652,81862,77382,6411C7+-2,81002,80092,89242,91612,91492,90392,83802,6783

    Propiedades del SeudocomponentePeso Molecular (lb/lbmol)145Densidad Relativa 0,7896Presin Crtica (Lpca)351,958Temperatura crtica (R)1134,560Tyac(R)685

    Comp.TbibiFiH2S38417421,9934CO235118192,5269N21405553,1541C12018052,8298C233214122,1917C341617991,6982i-C447120371,3511n-C449121531,2419i-C554223680,9121n-C555724800,8320C661627800,4546C7+818,40958370-1,9918