Hoi thdo khoa hoc "Ndng cao he sd thu hoi ddu md Bach Ho "<br />
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NGHIEN ccru TANG THU H6I DAU BANG CONG NGH^ PHCTC HOP<br />
VI SINH - HOA L? T R E N M O HINH VIA M 6 BACH H6<br />
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Ta Dinh Vinh. Phan Van Doan va nnk<br />
Cong ty Dung dich /(hoan va Hoa pham Dau /(hi<br />
Nguyen Van Minh. Nguyin Dang Man<br />
Tong cong ty Dau /(hi<br />
Tran Le Dong, Hoang Dinh Tien, Cao My Lgi<br />
Pham Anh Tuan, Nguyen Chi Nghla<br />
XNLD Vietsovpetro<br />
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ABSTRACT<br />
Laboratory studies simulating the field conditions were performed to design field experiment for enhanced o<br />
recovery technology using Physico - chemical and microbiological complex method. In the Miocene formation<br />
conditions of White tiger, the relative increment of oil displacement coefficent reached 17.53% to 29.55%. The<br />
technology were supposed to be used for field experiment.<br />
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MdDAU<br />
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Kha nang su dung hydroeaebon cua vi sinh vat la nen tang cua rat nhieu quy trinh cdng nghe sinh hpc,<br />
trong dd cd cdng nghe sinh hpc nham tang cudng thu hdi dau. Qua trinh phan huy sinh h p c j y nhien cua<br />
hydroeaebon xay ra lien tue trong ty nhien, nhung trong cac dieu kien san ed cua via dau thi td hgp cac qua<br />
trinh vi sinh phan huy dau dien ra rat cham chap.<br />
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Kich thich bang cac ca chat dinh dudng se lam gia tang manh me ddng hpc va sd lugng cua eae te bao vi<br />
khuan, hoat hoa cac qua trinh phan huy sinh hpc va tao ra cac san pham trao ddi chat cd anh hudng den tinh<br />
luu bien eua dau Idng va giai phdng lugng dau edn lai trong via.<br />
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Kha nang dieu chinh cac qua trinh oxi hoa hydroeaebon trye tiep trong via dau nham tao ra cac san<br />
pham trao ddi chat lam thay ddi tinh luu bien cua dau dat ca sd cho viec tao ra phuang phap vi sinh cho tang<br />
cudng thu hdi dau.<br />
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Cdng nghe tang thu hdi dau bang vi sinh - MEOR (in situ va out situ) xuat hien gan day da phat trien rdng<br />
rai tren the gidi va thu dugc nhieu ket qua. Cac chat hoat ddng be mat, nhu hoa, biopolyme, chat khi, aldehyd,<br />
alcohol... ddng sinh ra trong qua trinh hoat ddng cua vi sinh vat va chinh ban than te bao vi sinh vat deu la cac<br />
tac nhan gdp phan nang cao he sd day dau.<br />
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Trong edng trinh nghien cuu eua chung tdi da su dung edng nghe phuc hgp vi sinh - hoa ly de tang<br />
cudng thu hdi dau tren ca sd ket hgp cac phuang phap MEOR out situ, MEOR in situ vdi cac tac nhan hoa ly.<br />
Dudi day trinh bay khai quat cac ket qua dat dugc.<br />
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I, NGUYEN Lieu VA PHL/ONG PHAP<br />
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Da tien hanh nghien cuu qua trinh day dau cua tac nhan day tren md hinh xdp va md hinh via md Bach Hd,<br />
khi su dung tac nhan day la nude bien cd chua phUe hgp vi sinh - hoa ly gdm eae thanh phan chu yeu nhu sau:<br />
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- Nguon dinh dudng (mdi trudng Raymond, eae mudi vi lugng v.v.);<br />
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- Chat hoat ddng be mat (anion va khdng sinh ion);<br />
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42<br />
Hoi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Hd'<br />
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- Polyme sinh hpc (Xanthan gum);<br />
- Tac nhan tao khi (NH4NO3, ure);<br />
- Chat uc che an mdn (CS(NH2)2, K4[Fe(CN)]6;<br />
- Chat ire che vi khuan khir sulphat (NH4NO3, HBO3 v.v.);<br />
- Chat tang dung lugng dem va dn dinh pH (NH4NO3, ure, HBO3, KH2PO4, polytriphotphat);<br />
- Chat dieu ehinh hap phu (KH2PO4, polytriphotphat, chat hoat ddng be mat);<br />
- Chat chdng ket tua (EDTA, xitrat).<br />
Tren MH xdp, qua trinh day dau dugc tien hanh ddng thdi, song song tu hai cot 5a va 5b cd dp tham khi<br />
khae nhau, md hinh hoa tinh bat ddng nhat eua via dau. Da thyc hien 3 thi nghiem day dau d cung ap suat 50<br />
kg/em^ nhiet dp: 60, 80, 100°C - nhiet dp tuang Ung vdi nhiet dp vung can day gieng tang Mioxen H, Olygoxen<br />
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<br />
Idng day la cac phUe hgp vi sinh - hoa ly DMCKA. Dya theo dpng hpc sinh trudng cua vi sinh, huyen phu vi<br />
khuan (VK) dugc luu trong md hinh 5-7 ngay cho phat trien, tao ra eae tac nhan day dau.<br />
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nu<br />
V<br />
E=^<br />
Hinh 1. Sd dd thiet bi xac dinh Hinh 2. Sa dd thiet bi "Water flood" de xac dinh he<br />
he sd day dau tren md hinh xdp sd day dau tren md hinh miu Idi md Bach Hd<br />
1- Bom mini; 2- Cot ctiia ngan; 3- Cot do-iioan xung; 1-Blnfi ciitra dau; 2-Luu tiie day dau; 3-Nude;<br />
4- dn niiiet; 5a- Cot xop tiiap; 4- Buong giu mau; 5- Mau loi mo Baeii Ho';<br />
5b- Cot xop cao; 6- Cot do dau va nude; 6- Buong dn niiiet; 7- Bom luu the;<br />
7- Bom V!M; 8- Bom doi ap. 8- Bom nen ttiuy luc; 9- Van ddi ap.<br />
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Da thyc hien 4 thi nghiem day dau tren MH Idi Mioxen H md Bach Hd d ap suat 40atm va nhiet dp 120°C,<br />
vdi tdc dp bam day 15ml/h (md hinh "WATER FLOOD"). Sir dung dau tang Mioxen ha md Bach Hd, pha them<br />
30% dau hoa de dau cd dp nhdt bang dp nhdt trong via. Chat Idng day dau la eae phUe hgp vi sinh - hoa ly<br />
DMCKA1, DMCKA2, DMCVIS1, DMCVIS2 ed tinh nang day dau manh. Cac thi nghiem tren MH xdp dugc thyc<br />
hien tai Vien Hoa dau, Vien Han lam Khoa hpc Nga, chi nhanh Xibiri, eae thi nghiem tren MH via md Bach Hd<br />
dugc thyc hien tai Vien Nghien cuu Khoa hpc va Thiet ke, Vietsovpetro.<br />
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43<br />
Hdi thdo khoa hoc "Ndng cao he sd thu hdi ddu md Bach Ho"<br />
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II.K^TQUA<br />
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Ket qua day dau tren md hinh xdp dugc din ra d Bang 1, 2, 3 va Hinh 3, 4, 5. 6 60°C, tren cot 5a dat<br />
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<br />
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<br />
he sd day dau bang 2.78% va 5.18% tUdng irng. Ddi vdi ca hai cot (chung cho md hinh khdng ddng nhat)<br />
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<br />
5.37%) tUdng Cfng. 0 80°C, tren cot 5a dat dugc he sd day dau tuyet ddi 57.9%, muc gia tang tuyet ddi va<br />
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<br />
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<br />
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<br />
2.35% va 3.35% tuang irng.<br />
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Bang 1. Tinh chat eua md hinh xdp hai cot, cac thdng sd day dau du<br />
d 60°C va cac bude tien hanh thi nghiem<br />
Gia trj cua thong so<br />
Ten thong so<br />
Cot 5a Cot 5b Chung cho mo hinh<br />
Chuan bj mo hinh<br />
Dp tham khi, \i^ 0.388 1.744 1.066<br />
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The tich rdng, cm^ 35.54 37.92 73.46<br />
Dau trong md hinh, cm^ 20 23 43<br />
Dp bao hoa dau ban dau, % 56.27 60.65 58.46<br />
Bdm nudc bien, cm^ 54.64 167.92 222.3<br />
Vpore 1.54 4.43 3.03<br />
The tich dau day ra bing nude bien, em^ 8.64 12.4 21.04<br />
The tich dau du, cm^ 11.36 10.6 21.42<br />
He sd day dau bing nude, % 43.2 53.91 48.6<br />
Bdm phiifc hdp day dau va vi khuan, cm^ 2.24 29.68 31.92<br />
Vpore 0.06 0.78 0.44<br />
Bdm nude bien, cm^ 46.64 480 526,7<br />
Vpore 1.31 12.66 7.17<br />
Bdm nude bien<br />
T/nh toan ket qua<br />
Tdng the tich dau day ra bang nude, phUe hgp,<br />
9.12 13.04 22.16<br />
huyen phu vi khuan, cm^<br />
He sd day dau tuyet ddi, % 45.6 56.7 51.2<br />
Gia tang he sd day dau tuyet ddi, % 2.4 2.78 2.6<br />
Gia tang he sd day dau tuang ddi, % 5.56 5.18 5.37<br />
He sd bao hoa dau du, % 30.61 26.25 28.4<br />
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44<br />
Hdi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Ho"<br />
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0 100°C, tren Cpt 5a dat dugc he SO BcamDMCXA • 1 khiilxi<br />
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day dau tuyet ddi 58.8%, muc gia tang<br />
tuyet ddi va tuang ddi he sd day dau bang<br />
8% va 15.75% tuang Ung, tren cpt 5b dat<br />
dugc he sd day dau tuyet ddi 67.13%, mUe<br />
gia tang tuyet ddi va tuang ddi he sd day<br />
dau bang 5% va 8.1% tuang irng. Chung<br />
cho ca hai cpt, dat dugc he sd day dau<br />
tuyet ddi 61%, mirc gia tang tuyet ddi va<br />
tuang ddi he sd day dau bing 6.5% va<br />
11.93% tuang ung. 10 11 12 IS 14. \i 10 VfOl<br />
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-Dlu,3«,')6 Diu,3b,% - • Ur* i^.gA -t Vrt,,5h,gA<br />
-N03.3«,a/1- N03,3b,3/1- • - V i k h u i n , 3b<br />
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Hinh 3, Ddng hpc day dau va qua trinh thoat cua cac thanh phan<br />
DMCKA tu md hinh xdp hai opt, hoat dpng d 60°C<br />
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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<br />
Gia trj cua thong so<br />
Ten thong so<br />
Cot 5a i Cot 5b Chung cho mo hinh<br />
Chuan bj mo hinh<br />
Op tham khi, ^ ' 0.565 1.024 0.795<br />
The tich rong, cm' 36.63 37.33 73.96<br />
Dau trong md hinh, cm' 21 20 41<br />
Op bao hoa dau ban dau, % 57.33 53.58 55.49<br />
Bdm ni/dc bien, em^ 41.28 174.8 216<br />
Vpore 1.13 4.68 2.92<br />
The tich dau day ra bang nude bien, cm' 11.68 13.6 25.28<br />
The tich dau du, cm' 9.32 6.4 15.72<br />
He sd day dau bing nude, % 55.61 68 62<br />
Bdm phifc hdp day dau va vi khuan, cm^ 9.44 35.68 45.12<br />
Vpore 0.26 0.96 0.61<br />
Bom nude bien, cm^ i 10 22.64 32.64<br />
Vpore 0.27 0.61 0.64<br />
Bom huyen phu vi khuan, cm^ 245 727.52 973<br />
Vpore 6.68 19.48 13.15<br />
Bam nude bien<br />
Tinh toan ket qua<br />
Tdng the tich dau day ra bang nude, phUc hgp, ,. .-<br />
14.08 26<br />
huyen phu vi khuan, cm'<br />
He sd day dau tuyet ddi, % 57.9 70.4 64.2<br />
Gia tang he sd day dau tuyet doi, % 2.29 2.4 2.35<br />
Gia tang he sd day dau tuang ddi, % 4.12 3.53 3.55<br />
He sd bao hoa dau du, % 24.13 15.58 20<br />
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45<br />
Hoi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bach Ho"<br />
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DMCKAi* DMCKA50% DMCKA,*5» DMi.,i(a<br />
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