Alkaline Surfactant Polymer alternating with Miscible CO 2 (ASPaM) Seyed Hamidreza Ghazizadeh Behzadi And Dr. Brian F. Towler

Transcription

1 Alkalie urfactat Plymer alteratig with Micible CO 2 (APaM) eyed Hamidreza Ghazizadeh Behzadi Ad Dr. Bria F. Twler

2 OUTLINE Why AP ad why WAG APaM advatage Hw t imulate the APaM ectr Mdel Reult Cclui

3 Why AP? AP recvery mechaim a) Reducti f urface tei b) Chagig wettability Drawback: i. It mut perate i a hrt rage ultra lw IFT widw ii. Very eitive t Ca ++, Mg ++ iii. require large vlume f urfactat iv. Lw ph fr aiic urfactat Why WAG? It ca have igificat macr weep efficiecy vertical diplacemet efficiecy : VDE k eff υ Δ g L h

4 APaM Advatage ) Better weep efficiecy i cmpari with bth AP ad CO 2 fldig 2) Le vicity itability 3) Le plymer i required ) Higher capillary umber fr AP bak 5) High micr weep efficiecy fr lw IFT a well a i the ultralw IFT widw 6) Le eitive t hetergeeity 7) The mre ctiuu il phae the mre favrable fr AP due t il wellig

5 Hw t imulate the APaM? Writig w prgram TAR Eclipe ad IMEX - Much t time cumig 2- May t be a precie a avialabe ftware 3- Required t be prved - Ca hadle AP 2- Ca t hadle lvet mdel - Ca t hadle AP 2- Ca hadle lvet mdel But it i pible t itrduce lvet mdel t TAR by a erie f chemical reacti ad peud cmpet

6 chematic f hw t implemet the lvet mdel i TAR ftware Oil & lvet prpertie K r ω Pre - Prcer Mixig ze prpertie λ, Ψ, ξ TAR : vicity : deity λ : mbility ω: mixig parameter K r : relative perm ξ : liear deity mixig cefficiet. Ψ: - liear mbility mixig cefficiet.

7 m m eff m eff + + ω ω ω ω + i i i eff eff L x x x f L x f L ) ( ) ( ) ( ) ( ) ( : vicity ω: mixig parameter x: mle fracti f(x): liear mixig factr eff eff e eff eff e Deity Vicity ) ( ) ( eff eff e e eff e e eff x x ξ ξ r r r r k k k k Relative Permeability lvet Oil Ga Oil Ga lvet + + α Reacti Tdd M.R. ad Lgtaff W.J.: The develpmet, ad applicati f a umerical imulatr fr predictig micible fld perfrmace", JPT 38, July 972

8 What ha bee cvered i thi mdel a.capillary, vicity ad gravity frce(diperi wa t cidered ). b.chagig relative perm a fucti f capillary umber ad lvet ccetrati. c.chemical adrpti. d.reidual reitace effect. ectr ize 200 * 200 *30 (ft) Grid 20(X)* 20(Y) *3(Z) The publihed AP data at PE 337 ad PE 33 are ued fr urfactat mdelig. Oil Prperty API Vicity (cp) Pb(pia)

9 Nw TAR ca imulate the lvet mdel Hw well thi algrithm ca imulate the lvet mdel? Cmpari f adapted TAR mdel with lvet mdel f IMEX

10 REULT Hw ijectivity ad areal weep efficiecy may imprve Hw recvery may imprve i hmgeu ytem Effect f hetergeeity recvery

11 Carb Dixide ca ehace AP fldig perfrmace. The Carb dixide lug ize ca imprve ijectivity f AP fld. 2. The bigger CO2 lug ize the later break thrugh (BT). AP ca ehace Carb Dixide fldig perfrmace AP ca imprved CO2 ijectivity by chagig wettability f the rck (Hiraaki et al, PEJ. 200, 9, 5.;Patel et al,pe 308). (Patel et al, PE 308)

12 Cmpari f differet EOR methd fr hmgeu ad itrpic ectr mdel.

13 Cmpari f differet EOR methd fr hmgeu ad itrpic ectr mdel.

14 Carig Upward, the permeability rati f layer are 3:2:.

15 Fiig Upward, the permeability rati f layer are :2:3.

16 APaM perfrmace at differet depitial evirmet.

17 Cclui.The pre prcer effectively imulate the lvet mdel. 2.APaM ca be a ew prmiig EOR methdlgy. 3.APaM ca have better ijectivity i cmpari with AP..Fiig upward depiti i the favrable depiti fr APaM. 5.APaM wuld have better perfrmace i cmpari with the ther EOR cheme i careig upward depiti.