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Hdi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Hd'''' XAY DL/NG MO HlNH V IA O O N G TFNH T H L / O N G TRl/C 3 CHI^U M O T TRONG N H O N G Hl/dNG 01 QUAN TRONG N H A M N A N G CAO H$ S6 THU H 6 |[.]
Hdi thdo khoa hoc "Ndng cao he sdthu hdi ddu md Bqch Hd' XAY DL/NG MO HlNH V I A O O N G - TFNH T H L / O N G TRl/C CHI^U M O T TRONG N H O N G Hl/dNG 01 QUAN TRONG N H A M N A N G CAO H$ S6 THU H | D A U CCIA M BACH H Tran Le Dong, Tran Van Hoi Phung Dac Hal, Pham Tuan Dung XNLD Vietsovpetro ABSTRACT The White Tiger Md consists of a number of resen/oirs characterized by complicated geological features Oil-bearing formations are the lower Miocene, Oligocene and Pretertiary granitic fractured basement, which belong to some structural stories and laterally developed irregularly Despite the field has been producing for a long time and has reached the peak production, there well-built models for the resen/oir management still are not available In this paper there are presented the main principles for building such models, such as: Iviaximal use of all data available such as geophysical, geological, hydrodynamic and production data: Building the most probable geological - hydrodynamic models for each resen/oir or groups of them; Using the latest informatics and computer technologies; Updating the database and the models The valid models for each resen/oir will allow Vietsovpetro effectively to manage the field by realizing optimal modern drilling and production technologies In this paper the measures that will be taken to realize the program, which wilt substantially raise the technical - economic effect, also has been covered Building static-dynamic 3D working models is once of the modern tendencies in enhancing oil recovery not only for the White Tiger but also for other fields on the whole HE sd THU H6| DAU VA M | LIEN QUAN COA CHONG V | DO TIN CAY COA MO HlNH DIA CHAT He sd thu hdi dau cd the khai quat bang cdng thCrc sau: RF = Ea X Ev x (Soi - Sord) day: RF - He sd thu hdi dau; Ea - He sd bao quet theo dien; Ev - He sd bao quet thing durng; Soi - He sd bao hoa dau ban dau; Sord - He sd bao hoa dau tan du He sd bao quet theo dien cd lien quan tryc tiep vdi hinh thai via, than gieng khoan va kha nang day ciJa luu the bam ep va d i u via He sd bao quet thing dCrng kiem soat bdi yeu td phan Idp, sy bien ddi tinh chat tham ehUa cua da chCra theo mat cat He sd bao hoa d i u ban d i u via phu thudc vao loai da chCra, kich thudc, hinh thai Id hdng, vi tri tuang ddi vdi ranh gidi dau nude va tinh dinh udt cua da chCra He sd bao hoa dau tan du via phu thudc vao kich thudc, hinh thai 16 hdng, tinh dinh udt cua da chCra, loai luu the bam ep va tdc dp dich chuyen ranh gidi dau va nude hoae bdm ep Bang khai quat ve mCre dp anh hudng cua cac yeu td ke tren ddi vdi he sd thu hdi dau Qua phan tich tren cho thay tam quan trpng cua sy hieu biet dia chit ve via chCra viec nang cao he sdthu hdi dau 129 Hdi thdo khoa hoc "Ndng cao he sd thu hdi ddu md Bqch Ho" He so MUc dao ddng Cao : TB Thap Yeu td anh hudng Ea, % Ev, % Dau di dong, % 70 65 60 60 55 40 60 50 45 - Hinh thai via; - Hinh thai GK; - MCrc huy ddng diu Bang RF theo che ngap ni/dc, % 25 18 11 - Phan Idp - Loai da - MCrc phan di dp thim: - Dp tham Ndi va ngoai Idp - Dp rdng - Bao hoa diu ban dau - Bao hoa diu tan du - Tinh dinh udt eua da Sau day se xem xet vi du la md Bach Hd ve tinh trang nghien eCru dia chat, dieu kien, tinh cip thiet va hieu qua cua viec xay dyng md hinh dia chat - thuy ddng lye via chieu thudng tryc KHAI Q U A T CHUNG V^ M Md dau Bach Hd dugc phat hien vao nam 1975 va bat diu khai thac tu nam 1986 Md bao gdm nhieu than dau (via ehUa) thudc eae phan vi dia tang khae nhau: Mioxen dudi, Oligoxen tren, Oligoxen dudi va mdng trudc De Tam (Hinh 1) Ciu true md Bach Hd bi phCre tap bdi nhieu he thdng dUt gay va phan tach nhieu khdi TrU than dau mdng, eae dUt gay tronq lat cat trim tich ve ca ban deu ddng vai trd ngan each thuy ddng luc •