Hoi thdo khoa hoc "Ndng cao he sd thu hoi ddu md Bach Ho " NGHIEN ccru TANG THU H6I DAU BANG CONG NGH^ PHCTC HOP VI SINH HOA L? TREN M O HINH VIA M 6 BACH H 6 Ta Dinh Vinh Phan Van Doan va nnk Cong ty[.]
Hoi thdo khoa hoc "Ndng cao he sd thu hoi ddu md Bach Ho " NGHIEN ccru TANG THU H6I DAU BANG CONG NGH^ PHCTC HOP VI SINH - HOA L? T R E N M O HINH VIA M BACH H6 Ta Dinh Vinh Phan Van Doan va nnk Cong ty Dung dich /(hoan va Hoa pham Dau /(hi Nguyen Van Minh Nguyin Dang Man Tong cong ty Dau /(hi Tran Le Dong, Hoang Dinh Tien, Cao My Lgi Pham Anh Tuan, Nguyen Chi Nghla XNLD Vietsovpetro ABSTRACT Laboratory studies simulating the field conditions were performed to design field experiment for enhanced o recovery technology using Physico - chemical and microbiological complex method In the Miocene formation conditions of White tiger, the relative increment of oil displacement coefficent reached 17.53% to 29.55% The technology were supposed to be used for field experiment MdDAU Kha nang su dung hydroeaebon cua vi sinh vat la nen tang cua rat nhieu quy trinh cdng nghe sinh hpc, dd cd cdng nghe sinh hpc nham tang cudng thu hdi dau Qua trinh phan huy sinh h p c j y nhien cua hydroeaebon xay lien tue ty nhien, nhung cac dieu kien san ed cua via dau thi td hgp cac qua trinh vi sinh phan huy dau dien rat cham chap Kich thich bang cac ca chat dinh dudng se lam gia tang manh me ddng hpc va sd lugng cua eae te bao vi khuan, hoat hoa cac qua trinh phan huy sinh hpc va tao cac san pham trao ddi chat cd anh hudng den tinh luu bien eua dau Idng va giai phdng lugng dau edn lai via Kha nang dieu chinh cac qua trinh oxi hoa hydroeaebon trye tiep via dau nham tao cac san pham trao ddi chat lam thay ddi tinh luu bien cua dau dat ca sd cho viec tao phuang phap vi sinh cho tang cudng thu hdi dau Cdng nghe tang thu hdi dau bang vi sinh - MEOR (in situ va out situ) xuat hien gan day da phat trien rdng rai tren the gidi va thu dugc nhieu ket qua Cac chat hoat ddng be mat, nhu hoa, biopolyme, chat khi, aldehyd, alcohol ddng sinh qua trinh hoat ddng cua vi sinh vat va chinh ban than te bao vi sinh vat deu la cac tac nhan gdp phan nang cao he sd day dau Trong edng trinh nghien cuu eua chung tdi da su dung edng nghe phuc hgp vi sinh - hoa ly de tang cudng thu hdi dau tren ca sd ket hgp cac phuang phap MEOR out situ, MEOR in situ vdi cac tac nhan hoa ly Dudi day trinh bay khai quat cac ket qua dat dugc I, NGUYEN Lieu VA PHL/ONG PHAP Da tien hanh nghien cuu qua trinh day dau cua tac nhan day tren md hinh xdp va md hinh via md Bach Hd, su dung tac nhan day la nude bien cd chua phUe hgp vi sinh - hoa ly gdm eae phan chu yeu nhu sau: - Nguon dinh dudng (mdi trudng Raymond, eae mudi vi lugng v.v.); - Chat hoat ddng be mat (anion va khdng sinh ion); 42 Hoi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Hd' - Polyme sinh hpc (Xanthan gum); - Tac nhan tao (NH4NO3, ure); - Chat uc che an mdn (CS(NH2)2, K4[Fe(CN)]6; - Chat ire che vi khuan khir sulphat (NH4NO3, HBO3 v.v.); - Chat tang dung lugng dem va dn dinh pH (NH4NO3, ure, HBO3, KH2PO4, polytriphotphat); - Chat dieu ehinh hap phu (KH2PO4, polytriphotphat, chat hoat ddng be mat); - Chat chdng ket tua (EDTA, xitrat) Tren MH xdp, qua trinh day dau dugc tien hanh ddng thdi, song song tu hai cot 5a va 5b cd dp tham khae nhau, md hinh hoa tinh bat ddng nhat eua via dau Da thyc hien thi nghiem day dau d cung ap suat 50 kg/em^ nhiet dp: 60, 80, 100°C - nhiet dp tuang Ung vdi nhiet dp vung can day gieng tang Mioxen H, Olygoxen H va tang Mdng md Bach Hd Si!r dung dau md Bach Hd, pha them 30% dau hoa de dugc dau ddng nhdt Chat Idng day la cac phUe hgp vi sinh - hoa ly DMCKA Dya theo dpng hpc sinh trudng cua vi sinh, huyen phu vi khuan (VK) dugc luu md hinh 5-7 cho phat trien, tao eae tac nhan day dau nu E=^ Hinh Sd dd thiet bi xac dinh he sd day dau tren md hinh xdp V Hinh Sa dd thiet bi "Water flood" de xac dinh he sd day dau tren md hinh miu Idi md Bach Hd 1- Bom mini; 2- Cot ctiia ngan; 3- Cot do-iioan xung; 1-Blnfi ciitra dau; 2-Luu tiie day dau; 3-Nude; 4- dn niiiet; 5a- Cot xop tiiap; 4- Buong giu mau; 5- Mau loi mo Baeii Ho'; 5b- Cot xop cao; 6- Cot dau va nude; 6- Buong dn niiiet; 7- Bom luu the; 7- Bom V!M; 8- Bom doi ap 8- Bom nen ttiuy luc; 9- Van ddi ap Da thyc hien thi nghiem day dau tren MH Idi Mioxen H md Bach Hd d ap suat 40atm va nhiet dp 120°C, vdi tdc dp bam day 15ml/h (md hinh "WATER FLOOD") Sir dung dau tang Mioxen md Bach Hd, pha them 30% dau hoa de dau cd dp nhdt bang dp nhdt via Chat Idng day dau la eae phUe hgp vi sinh - hoa ly DMCKA1, DMCKA2, DMCVIS1, DMCVIS2 ed tinh nang day dau manh Cac thi nghiem tren MH xdp dugc thyc hien tai Vien Hoa dau, Vien Han lam Khoa hpc Nga, chi nhanh Xibiri, eae thi nghiem tren MH via md Bach Hd dugc thyc hien tai Vien Nghien cuu Khoa hpc va Thiet ke, Vietsovpetro 43 Hdi thdo khoa hoc "Ndng cao he sd thu hdi ddu md Bach Ho" II.K^TQUA Ket qua day dau tren md hinh xdp dugc din d Bang 1, 2, va Hinh 3, 4, 60°C, tren cot 5a dat dugc he sd day dau tuyet ddi 45.6 %, mUe gia tang tuyet ddi va tuang ddi he sd day dau bang 2.4% va 5.56% tUdng ung, tren cot 5b dat dugc he sd day dau tuyet ddi 56.7%, mUc gia tang tuyet ddi va tuang ddi he sd day dau bang 2.78% va 5.18% tUdng irng Ddi vdi ca hai cot (chung cho md hinh khdng ddng nhat) dat dugc he sd day dau tuyet ddi 51,2 %, muc gia tang tuyet ddi va tuang ddi he sd day dau bang 2.6% va 5.37%) tUdng Cfng 80°C, tren cot 5a dat dugc he sd day dau tuyet ddi 57.9%, muc gia tang tuyet ddi va tuang ddi he sd day dau bang 2.29% va 4.12% tuang Ung, tren opt 5b dat dugc he sd day dau tuyet ddi 70.4%, mLfc gia tang tuyet ddi va tuang ddi he sd day dau bang 2.4% va 3.53% tuang irng Chung cho ca hai cot, dat dugc he sd day dau tuyet ddi 64.2%, mirc gia tang tuyet ddi va tuang ddi he sd day dau bang 2.35% va 3.35% tuang irng Bang Tinh chat eua md hinh xdp hai cot, cac thdng sd day dau du d 60°C va cac bude tien hanh thi nghiem Gia trj cua thong so Ten thong so Chung cho mo hinh Cot 5a Cot 5b Dp tham khi, \i^ 0.388 1.744 1.066 The tich rdng, cm^ 35.54 37.92 73.46 Dau md hinh, cm^ 20 23 43 Dp bao hoa dau ban dau, % 56.27 60.65 58.46 Bdm nudc bien, cm^ 54.64 167.92 222.3 1.54 4.43 3.03 The tich dau day bing nude bien, em^ 8.64 12.4 21.04 The tich dau du, cm^ 11.36 10.6 21.42 He sd day dau bing nude, % 43.2 53.91 48.6 Bdm phiifc hdp day dau va vi khuan, cm^ 2.24 29.68 31.92 0.06 0.78 0.44 46.64 480 526,7 1.31 12.66 7.17 Tdng the tich dau day bang nude, phUe hgp, huyen phu vi khuan, cm^ 9.12 13.04 22.16 He sd day dau tuyet ddi, % 45.6 56.7 51.2 Gia tang he sd day dau tuyet ddi, % 2.4 2.78 2.6 Gia tang he sd day dau tuang ddi, % 5.56 5.18 5.37 He sd bao hoa dau du, % 30.61 26.25 28.4 Chuan bj mo hinh Vpore Vpore Bdm nude bien, cm^ Vpore Bdm nude bien T/nh toan ket qua 44 Hdi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Ho" 100°C, tren Cpt 5a dat dugc he SO day dau tuyet ddi 58.8%, muc gia tang tuyet ddi va tuang ddi he sd day dau bang 8% va 15.75% tuang Ung, tren cpt 5b dat dugc he sd day dau tuyet ddi 67.13%, mUe gia tang tuyet ddi va tuang ddi he sd day dau bang 5% va 8.1% tuang irng Chung cho ca hai cpt, dat dugc he sd day dau tuyet ddi 61%, mirc gia tang tuyet ddi va tuang ddi he sd day dau bing 6.5% va 11.93% tuang ung BcamDMCXA • khiilxi 10 11 12 IS 14 \i -Dlu,3«,')6 -N03.3«,a/1- Diu,3b,% N03,3b,3/1- • Ur* i^.gA -t 10 VfOl Vrt,,5h,gA • - V i k h u i n , 3b Hinh 3, Ddng hpc day dau va qua trinh thoat cua cac phan DMCKA tu md hinh xdp hai opt, hoat dpng d 60°C Bang 2, Tinh chat cua md hinh xdp hai cot, eae thdng sd day dau du d 80°C va cac bude tien hanh thi nghiem Gia trj cua thong so Ten thong so Cot 5a i Cot 5b Chung cho mo hinh Chuan bj mo hinh Op tham khi, ^ ' 0.565 1.024 0.795 The tich rong, cm' 36.63 37.33 73.96 Dau md hinh, cm' 21 20 41 Op bao hoa dau ban dau, % 57.33 53.58 55.49 Bdm ni/dc bien, em^ 41.28 174.8 216 Vpore 1.13 4.68 2.92 The tich dau day bang nude bien, cm' 11.68 13.6 25.28 The tich dau du, cm' 9.32 6.4 15.72 He sd day dau bing nude, % 55.61 68 62 Bdm phifc hdp day dau va vi khuan, cm^ 9.44 35.68 45.12 0.26 0.96 0.61 10 22.64 32.64 0.27 0.61 0.64 245 727.52 973 6.68 19.48 13.15 14.08 26 Vpore Bom nude bien, cm^ i Vpore Bom huyen phu vi khuan, cm^ Vpore Bam nude bien Tinh toan ket qua Tdng the tich dau day bang nude, phUc hgp, huyen phu vi khuan, cm' , .- He sd day dau tuyet ddi, % 57.9 70.4 64.2 Gia tang he sd day dau tuyet doi, % 2.29 2.4 2.35 Gia tang he sd day dau tuang ddi, % 4.12 3.53 3.55 He sd bao hoa dau du, % 24.13 15.58 20 45 Hoi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bach Ho" DMCKAi* DMCKA50% DMCKA,*5» t^ so - i i : i 00 e