luygn tap bao cao HQi nghj KHCN "30 nam DSu khi Viet Nam Cff hdi mdi, thach thuc mdi" 9 6 ^ TOI i r u HOA CONG NGHE BOM EP NlTOC DE DUY TRI AP SUAT VIA TAI M O BACH HO Vu Qu6c Tuyen, Kuzmichev A D , N[.]
luygn tap bao cao HQi nghj KHCN "30 nam DSu Viet Nam: Cff hdi mdi, thach thuc mdi" 96^ TOI i r u HOA CONG N G H E B O M EP NlTOC D E D U Y TRI AP SUAT VIA TAI M O B A C H H O Vu Qu6c Tuyen, Kuzmichev A.D., Nguyen Van Canh XNLD Vietsovpetro TOM TAT Bam ep nu&c vdo via di tri dp sudt via la mgt cdc phuong phdp tdng cucmg khd ndng thu hdi ddu vd cho phip diiu chinh nhip khai thac md theo yiu cdu Tu ndm 1986, XNLD Vietsovpetro da dp dung phuomg phdp ndy vd da thu dugc kit qud tdt Md Bgch Hd Id mdt md ddu ldm ngodi khai, cd cdu true dia chdt phuc tgp, ddu tu xdy dung gidn khoan khai thac ddi hdi mdt sd vdn khd ldm Do ddc thu trin md hi thdng tri dp sudt via cung cdn phdi thiit ki tinh gidn vd ggn nhe Hi thdng bam ip via md Bgch Hd da ddp ung dugc yiu cdu trin vd ngdy cdng dugc hodn thiin Hdng ndm hi thdng ndy da bom ip khodng 20 triiu m nu&c, da xir ly vdo via, ddng mdt vai trd quan trgng gdp phdn dua XNLD Vietsovpetro khai thac 10-12 triiu tdn ddu thuang phdm Hiiu qud cua viec bom ip nu&c vdo via di tri dp sudt via phu thudc rdt nhiiu vdo cdc yiu td sau: so mgng giing, khdi lugng nu&c dugc bam ep vdo via, th&i gian md dua vdo khai thac, sd lugng giing khai thac vd giing bom ip; ngodi cdn phu thudc vdo rdt nhiiu cdc yiu td khdc nira Qud trinh khai thac & md Bgch Hd ddi hdi nhiiu gidi phdp cdng nghi khdc nhau, dd viec tinh todn ndng cao hiiu qud bcrm ep nu&c la viec uv tiin hdng ddu Di viec bom ip nu&c dgt hiiu qud cao cdn tdi uu hod cdng nghe bam ep nu&c phu hgp v&i phdt triin md, la: Tdi uu hod lugng nu&c bom ip & tung giing Ap dung cdc gidi phdp ndng cao tiip nhgn ciia giing bam ip Thiit ki tdi uu cdu true giing bam ep Thiit ki tdi uu hi thdng mdy bom Ndng cao chdt lugng xir ly nu&c bom ip CHINH XAC HOA LlJOfNG NU^OC BOM EP M6 Bach H6 la mo dau lan, viec bom ep nuoc vao via tac dong rat Ion len san lugng khai thac cua mo Mot so giai phap da dugc tiln hanh de phuc hoi kha nang cua via, la: tinh toan kh6i lugng nuoc bom ep cho tung gieng cu the, bom ep nuoc dinh ky vao mot s6 gieng, chuyen gieng bom ep sang khai thac hoae chuyin gieng khai thac sang bom ep nuoc De khai thac mo mot each hgp ly, cin phai dilu chinh san lugng dau khai thac va lugng nuac bom ep theo ke hoach Hien tugng bi ngap nuac a gilng khai thac la dilu kh6ng the tranh khoi Tuy nhien, co mot sl gilng khai thac tic ngap nuoc tang qua nhanh dan den gieng ngung phun dot ngot Nhung lugng nuoc bom ep it hon kl hoach thi 968 Tdi uu hda cdng nghe bom ep nude dg tri ap suht via tai md Bgcl^Jjo^ gieng khai thac se cho hieu qua kinh te kem Tu nhQng kinh nghiem khai thac mo Ring va Bach H6 chiing ta thay rang: san lugng khai thac giam ap suit via giam Do do, viec tri ap suat via bang bom ep nuoc la dieu rat quan Khii lugng nuoc bom ep theo kl hoach va theo thuc te cho cac d6i tugng Miocen, Oligocen va ting mong mo Bach H6 dugc dua Bang [2] Bang Ddi tirgng Miocen (nghin m ) Oligocen (nghin m ) Tang mong (nghin m ) Nam 1993 426,80 396,22 258,12 1998 264,83 354,85 16056,05 2003 483.75 842,45 18260,76 2004 564,80 898,19 18673,33 Lugng nuoc bom ep thuc te vao tang Miocen va Oligocen dugc thuc hien theo diing ke hoach da dinh Tat nhien, ke hoach bom ep nuoc nam 2004 cho hai d6i tugng ke tren da hoan vugt miic mo Bach H6 co 50 gieng bom ep nuoc va dugc phan b6 theo cac d6i tugng sau: Kh6i trung tam tang mong: 30 gieng Kh6i Bae tang mong: gieng Oligocen duoi: 11 gieng Miocen duoi vom Trung tam: gieng Miocen duoi vom Bae: gieng Theo ke hoach, kh6i lugng nuoc bom ep vao via nam 2004 la 19.940.000m-^ nhung thuc te da bom dugc la 20.136.329m^ vugt kl hoach dl Tren doi tugng Miocen duoi co gilng bom ep, nam 2004 theo kl hoach cin phai bom 557 nghin m^ nhung thuc tl da bom dugc 565 nghin m-^ va da vugt kl hoach dl Nhu vay, nam 2004 tiep nhan trung binh mli gilng bom ep a ting Miocen duoi la 260mVngd, nhieu hon so voi nam 2003 la 32mVngd Tren dii tugng Oligocen duoi co 11 gilng bom *ep, nam 2004 da bom ep vao dii tugng la 898 nghin m l Luu lugng nuoc bom ep trung binh ciia mli gilng dii tugng Oligocen duoi la 224mVngd Do ap suit via giam nen san lugng khai thac ciia cac gilng a d6i tirgng giam Ting mong mo Bach H i dugc phat hien va dua vao khai thac thang 9-1988 co chilu cao than diu va tru lugng Ion Hien nay, via diu dang a giai doan khai thac diu dinh, lugng diu khai thac tu via cbilm tren 80% ting san lugng ciia XNLD Vietsovpetro Tang mong dugc chia hai khii: khii Trung tam va khii BIC khii Trung tam tang mong co 32 gieng bom ep, luu lugng nuoc bom ep trung binh ciia mot gilng la 1960m /ngd Nam 2004, t6ng lugng nuoc bom ep ting mong m6 Bach H i la 18.673.33 nghin m^ Trong nam 2003, da dilu chinh khii lugng nuoc bom ep a mot sl gilng, nhung ket qua cua viec dieu chinh da anh huong len ap suat via Ap suat via giam keo theo san lugng khai thac diu ciia ting mong cung giam Theo tinh toan, ap suat via giam khoang tu den 4at Nam 2004, lugng nuoc bom ep vao tang mong dugc tang cuong nho vay ma ap suat via In dinh Juygn tap bao cao Hdi nghi KHCN "30 nam Phu Viet Nam: Cff hdi mdi, thach thuc mdi' 969 Luu lugng (do tilp nhan) va ap suit bom ep (ap suit mieng) ciia cac gieng bom ep nuoc ting mong mo Bach H I kbac Cin phai xac dinh dugc luu lugng nuac bom ep cho moi gieng cu thi Do tiep nhan thuc tl va tiep nhan cue dai ap suat mieng Ion nhit (245 - 250at) theo tinh toan, dugc dua Bang Tu s6 lieu Bang cho thay rang, lugng nuoc bom ep co the dat dugc khoang 70.000mVngd nhieu hon so voi thuc tl la 22.000mVngd Bang 2: Do tiep nhan thuc te va tiep nhan cue dai ap suat mieng gieng Ion nhat theo tinh toan ciia cac gieng bom ep tang mong mo Bach Ho Thdng sd thuc te STT 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Gieng 1494 1489 1444 1485 1497 1493 1435 2636 2637 1407 3848 3552 3555 2858 1459 1860 2164 1865 1477 1484 1485 1443 1911 1914 1921 2108 17004 19001 19007 1288 2100 Do tiep nhdn, m /ngd 1198 1321 2004 1232 3850 5000 3400 509 1015 997 3013 1991 3515 Ap sudt mieng gieng, at Thdng sd tinh todn Do tiep nhdn, m /ngd 161,6 111,2 84,6 160,3 179,1 199,0 100,6 -25,7 -51,4 153,0 199,5 0,5 122,7 110 173,6 306 198,1 1008 115,6 5000 208,5 1010 143,1 136,7 513 3036 -6,6 902 169,1 90,7 1509 221,7 1897 1045 230,7 2003 128,4 466 226,5 224 214.4 466 240,6 129 232,8 599 203,6 935 242.3 Tong luu lugng nuac B E V hien tai Tong luu lugng nuac B E V theo tinh 1500 2080 2630 1800 4200 5500 4950 2460 4176 1330 3280 4150 4900 135 345 1520 5300 1470 725 5900 2450 2430 1970 1360 2680 480 240 466 135 720 935 toan Ap sudt mieng gieng, at Khdc giira TK vd TH 236,9 302 759 237,0 237,2 626 568 236,7 350 234,8 238,0 500 237,6 1550 235,6 1951 237,1 3161 236,7 333 267 238,7 235,0 2159 234,2 1385 236,2 25 237,5 39 512 236,7 237,1 300 238,1 460 212 237,3 2864 234,9 236,6 1548 921 238,0 236,3 73 234,3 315 235,7 677 14 236,4 207,7 16 240,6 247,9 237,9 121 242,3 49941m^/ngd 70562mlngd 970 Toi uu hda cdng nghe bom ep nu-dc dl tri ap suSt via tai md B9chJ^d^ Cac tinh toan dua Bang dua tren cac kit qua nghien ciin khao sat a tung gilng va CO tinh den kich thuoc 6ng nang, 6ng chong, nghieng cua gilng, sir hoan thien gilng, v.v Viec tri ap suat via bang bom ep nuoc a tang mong vom BIC dugc tien hanh boi hai gilng bom ep Ap suat mieng gieng dao dgng khoang tu 210 din 220at, tiep nhan cua cac gilng tuong iing la 802mVngd va 1120mVngd Vai cac ap suit thi kh6ng thi tang dugc lugng nuac bom ep De ap suat via o kh6i kh6ng bi giam manh can tang cuong them gieng bom ep AP DUNG CAC GIAI PHAP DE TANG ClTdNG KHA NANG TIEP NHAN CUA GIENG BOM EP Trong thai gian khoan gilng, dl tranh hien tugng sap lo gieng nguai ta da su dung dung dich khoan co ty cao Do ap suat thuy tinh cua cot dung dich cao hon ap suit via ma mot phan dung dich khoan va mun khoan da bi day vao gieng di vao via, gay hien tugng tac cac kenh dan via lam cho tham thau cua via giam Nhu vay, sau ket thiic khoan gieng bom ep can phai goi dong de phuc h6i tham thau ban dau ciia via D6i voi cac gieng bom ep co thai gian lam viec nhieu, van de phuc hoi tham ciia viing can day gieng can phai luon dugc xem xet va co cac giai phap hiiu hieu kip thai Boi vi qua trinh bom ep, nhiet vung can day gieng giam va ap suat via thay d6i tao dieu kien thuan lgi cho viec ket tiia cac loai mu6i Nuoc bom ep chuyen dong via cu6n theo cac tap chat, den mot liic nao cac tap chat lang tu lai, kh6i lugng cua chiing tang dan len va chiing bit dan cac kenh dan Ve can ban, viec thau rua vung can day gieng bom ep cung gi6ng nhu cac bien phap thau nia via d6i voi gieng khai thac dau, la: goi dong bang he th6ng gaslift, diing cac may bom chuyen dung, may nen nito Trong mot s6 truong hgp da chiia (collector) mit ne co thim kem (ting mong) mac du co chenh ap rat Ion giQa ap suat via va ap suit day nhung lugng nuoc dugc bom ep vao via kh6ng dang ke ap suit bom ep tai mieng gilng da dat gia tri Ion nhat De lugng nuoc bom vao via dugc nhilu, cin phai ap dung cac bien phap cai thien tham thau ciia via De tang tham thau cua via, cac c6ng nghe sau da dugc ap dung: cac dang xu ly bang axit a cac via thuoc tang mong va trim tich luc nguyen; mit via nho dan chay n l tao ap suat cao (PGD) ket hgp voi chit long boat tinh; khoi th6ng sau vao via nho sii dung cac hoa pham; nut via thuy lire co chen cat nhan tao; phuang phap tao xung thuy lire, v.v Xu ly nhiet hoae nhiet - boa co the lam sach paraffin hoae cac chat ket tu a vach cac kenh din vung can day gieng Nho vay ma cac kenh din dugc lam sach va mo rong D I viec xii ly CO hieu qua cao ban, co the ket hgp cac giai phap tren (vi du mit via thuy lire kit hgp xu ly axit duai ap suat cao va phuong phap boa nhiet) Can Cli vao tinh trang ciia via cin dua mot giai phap thich hgp viec xu ly vung can day gieng Dii voi da chiia co thim kem ham lugng carbonat cao thi viec xii ly vung can day gilng bing axit cho hieu qua tit Phuong phap cung co hieu qua o cac gieng bom ep thuoc Miocen duoi va Oligocen (collector luc nguyen, xi mang gin kit la Tuygn tap bao cao H^i nghj KHCN "30 nam Phu Viet Nam: Cff hdi mdi, thach thuc mdi" 971 set - carbonat) Ngoai ra, dii voi ting mong da chiia la da granit nut ne co thi xu ly bing axit set (bin hgp a xit flohydric) 160.00 05/02 08/02 11/02 02/03 05/03 08/03 11/03 02/04 05/04 08/04 11/04 02/05 05/05 ThWgian j DO tiep nhan Ap suat mi?ng giSng Hinh 1: Cac thong so lam viec cua gieng 1477 Phuang phap su dung dan trai n6 va phuong phap nut via thuy lire dugc dung cho via da nut ne co thap kem nhung ap suat via dii Ion [5] Cac th6ng s6 lam viec ciia gieng 1447 m6 Bach H6 dugc dua Hinh Truoc xu ly tiep nhan ciia gieng khoang 500mVngd voi ap suat mieng gieng la 140at Sau xu ly bang nhu tuong dau - axit, tiep nhan cua gilng dat dugc la 700mVngd voi ap suat mieng gieng cung khoang 140at Trong khoang thai gian tu nam 1999 din nam 2004, o mo Bach H I nho ap dung cac phuong phap xu ly viing can day gieng ma khoi lugng nuoc bom ep tang them la 323.000ml THIET KE TOI UtJ CAU TRUC GIENG BOM EP Trong mot s6 truong hgp can tang cuong bom ep nuoc vao mot s6 gieng, nhung ap suat mieng gieng da dat toi gia tri cue dai ciia he th6ng bom ep nen kh6ng the tang dugc nuoc bom vao gieng Phong C6ng nghe khai thac diu Vien NCKH & TK DIU biin da dua giai phap de tang luu lugng nuoc bom ep ap suat mieng gieng da dat gia tri cue dai Phuong phap la t6i uu boa clu tnic thilt bi long gilng nhim giam tin hao thuy lire qua trinh ep nuoc tir mieng gilng vao via Chuang trinh toan da dugc lap dk lira chon clu tnic gilng bom ep tii uu Tin hao ap suit ma sat o cac loai Ing voi duong kinh 73, 89, 114 va 127mm phu thuoc vao luu lugng dugc dua tren Hinh va Toi uu hda cdng nghe bom ep nude dg tri ap suht via tai md BgchJHo^ 972 80 -\ / / / hao suat + -K ! ' / / / / / //?S^ f / y "" y Ong mdi / g 30 X \ 500 1000 3500 2500 1500 Luu lugtng m /ngd L: - 6ng (3u^6'ng kinh 89mm -Ong du'O'ng kinh 89mm -6ng dipd'ng kinh 73mm -Ong du^ng kinh 73 mm ~| | Hinh 2: Ton hao ap suat cot ong bom ep theo lini luong Luu lucmg m /ngd • ong duong kinh 114mm,cu —A—Ong ducmg kinh 114mm, mdi •Ong duong kinh 127mm, cu -o-Ongdudmg kinh 127mm, mdi Hinh 3: T6n hao ap suat cot I n g bffm ep theo luu luong Trong Bang dua cac th6ng s l lam viec thuc t l ciia hai gilng bom ep voi ap suit mieng gieng khae 973 Tuygn tap bao cao Hdi nghj KHCN "30 nam Dau Viet Nam: Co' hdi mdi, thach thuc mdi^ Bang 3: Luong nuffc bom ep voi ap suat mieng (bo'm ep^ 1khae TT Lugng nu&c bom ip v&i dp sudt bam ep khdc He sd sdn phdm, Gieng Gid tri tinh todn m /ngd, at 250 at 225at 200at 175at 15 Oat Ap sudt bom ep, at Lirgng nu&c bam ep 1436 9,7 2396 2250 2100 1941 1782 244 2690 1464 56,8 4459 4273 4079 3876 3666 239,1 4550 Bang Gieng Du&ng kinh cdt dng bom ip, mm d, d2 Do ddi dng, m Tdng ddi dng, m Lugng nu&c bam (Pm = 235at), m /ngd L2 LI Truac toi uu 1436 0,103 0,076 2881 1500 4381 2690 1464 0,103 0,076 3006 1384 4390 4550 Tong lugng nuac 7240 Sau toi uu 1436 0,103 4381 4381 3400 1464 0,103 4390 4390 5800 Tong lugng nuac 9200 Lugng nuac gia tang 1960 Lira chgn t6i uu cau tnic 6ng bom ep (thay 6ng co duong kinh Ion hon) da cho ket qua kha quan Lugng nuoc bom ep vao hai gieng ke tren da dat toi gia tri tinh toan Ket qua t6i uu cau tnic cot ong bom ep dugc dua Bang Lugng nuoc bom ep hai gieng da tang dugc 1960m^/ngd THIET KE TOI UtJ HE THONG MAY BOM EP Nlf6C VAO VIA mo Bach H6, sii dung hai he th6ng thiet bi may bom, de bom ep nuac da xii ly vao via: he th6ng trung tam va he thong cue bo He th6ng thiet bi may bom ep via trung tam g6m b6n block-module dat tren gian 8, gian 9, gian bom ep via va gian c6ng nghe trung tam M6i block-module bao g6m he thong xii ly nuoc, may bom va he th6ng duong 6ng cao ap dan nuoc toi cac gieng bom ep Block module (BM) 40000 dugc bl tri tren gian c6ng nghe trung tam gIm bin block voi ting c6ng suit 40.000m^ nuoc/ngd voi ap suit diu la 250at Nhung c6ng suit thuc tl ciia BM chi dat 38.000 m^ nuoc/ngd Trong nam 2004, he s l khai thac ciia cac BM dao dong khoang 0,71 -0,91 gia tri trung binh la 0,79 So voi nam 2003 thip hon 0,05 va nam 2002 la 0,2 He so khai thac ciia BM nam 2003 giam la phai kit 974 Tdi uu hda cdng nghe bom ep nude dg tri ap su5t via tai md_B£chJtd^ nii \ai BM 30000 Nho b l sung them BM 30000 nen cac thilt bi da dugc bao duong thuang xu\ en BM 30000 dat tren gian c6ng nghe trung tam dugc dua vao khai thac tu thang 32003 gIm module, moi module co the cho c6ng suat lO.OOOm^'/ngd vai ap suat mieng la 250at He sl khai thac trung binh ciia BM 30000 nam 2004 la 0,94 BM 5000 dat tren gian co thi cho c6ng suit bom ep via la 5000 m^/ngd voi ap suit mieng la 250at Nam 2004, he sl khai thac trung binh cua BM trung binh la 0.23 BM 5000 tren gian co dac tinh gilng nhu BM 5000 dat tren gian Nam 2004, he sl khai thac trung binh ciia BM trung binh la 0,37 Tu6cbin ciia BM 5000 tren gian da lam viec 52012 gia tulcbin ciia BM 5000 tren gian da lam viec 46567 gia Nam 2004 hai tulcbin da dugc hang "WOODGROUP" siia chiia va bao duong djnh ky tai My Tong lugng nuoc bam ep ma he th6ng tri ap suat via trung tam co the thuc hien dugc la 75.000 - 80.000 m^/ngd Thuc tl lugng nuoc bom ep chi cin tu 50.000 58.000 nv'/ngd Do c6ng suat du phong cua he th6ng tri ap suat via trung tam len toi 20.000 mVngd He th6ng tri ap suat via cue bo cua mo Bach Ho g6m cac may bam co c6ng suat nho va thiet bi don gian de xu ly nuoc bien Cac may bom la nhung may bom dien li tam va may bom pittong Do nhu cau san xuat cac may bom pitt6ng da dugc thao chuyen di noi kbac cac may bom dien li tam van dugc sir dung M6i may bom dien li tam c6 the cho c6ng suat la 2000 nv'/ngd voi ap suat dau 140at va dugc phan bo tren cac gian duai day: Hai may tren gian B6n may tren gian c6ng nghe trung tam (CPP 2) Hai may tren gian bom ep via (WIP) T6ng c6ng suat cua cac may bom cue bo khoang 15.000 n//ngd, nhung thuc tl chi can khoang 13.000 mVngd He sl khai thac ciia he thing bom cue la 0,02 He sl khai thac cua may bom cue bo thap la c6ng suat ciia he thing tri ap suit via trung tam sau dua vao van hanh BM 30000 dap iing dii nhu clu bom ep nuoc vao via va nhu vay cac may bom cue bo chi de du phong NANG CAO CHAT LUONG NUOC BOM EP Cho den thai diem mo Bach H6 da sii dung 20 loai boa phim, vl co ban cac hoa pham la: chat ngung tu, d6ng kit, ching tao bot, ch6ng an mon, diet khuIn, chit hap thu oxy Sau xu ly, nuoc bien da dugc loai bo cac tap chat, cac hat rin, dugc diet khuan va dugc hap thu het oxy Nuoc qua xu ly cin phai dap iing dugc cac tieu chuin sau day: - N6ng pH dao dong khoang 4,5 - 8,5 Lugng oxy da dugc loai bo kh6ng Ion hon 0,5ppm T6c an mon kim loai khong Ion ban 0,1 mm/nam Tuygn tap bao cao Hdi nghj KHCN "30 nSm Phu Viet Nam: Co' hdi mdi, thach thuc mdi" - 975^ Tap chit CO hoc va cac san phim diu kh6ng vugt qua gioi ban cho phep - Khong xay phan iing giua nuoc via va nuoc bom ep Thuc tl kilm tra nuac bom ep sau xu ly da dap ung dugc cac chi tieu ky thuat la pH khoang 4,5 - 8,5; tap chat co hoc kh6ng lan hon 0.3mg/l: due nho hon 0,15TU; ning oxy kh6ng Ion hon 0,15ppm; ham lugng Clo nho hon 10.5 mg'l toe an mon kim loai kh6ng Ion ban 0,1 mm/nam; kh6ng co H2S, Fe^"' CaCOv CaS04 BaS04 va SrS04 Nuac xii ly da loai bo dugc 98% cac hat tap chat ca hoc co kich thuac nho ban 2|^km va toi 96% cac hat co kich thuoc nho hon l|ikm KET LUAN De viec bom ep nuoc vao via co hieu qua, XNLD Vietsovpetro da ap dung nhieu phuang phap c6ng nghe t6i uu nhu phan b6 hgp ly cac gieng bom ep; tinh toan khoi lugng nuoc bom ep cho tung gieng cu the; sii dung cac phuong phap tac dong vung can day gieng de phuc h6i va tang kha nang tiep nhan cua gieng; nang cao chat lugng nuoc bom ep; thiet ke t6i uu cau tnic gieng bom ep; t6i uu he th6ng duong 6ng dan nuoc cao ap va he th6ng may bom Nho vay ma nhiJng nam qua, he th6ng tri ap suat via cang dugc hoan thien, tung buoc di len va dap iing dugc ke hoach san xuat, phii hgp voi so d6 c6ng nghe khai thac va phat trien mo Viec tinh toan thiet ke lai cau tnic thiet bi long gieng ciia mot s6 gieng bom ep cho phep tang lugng nuoc bom ep vao via Nho b6 tri he th6ng duong ong dan nuac cao ap hgp ly nen da giam thieu dugc t6n hao ap suat he th6ng bom ep He th6ng bom ep via lu6n dugc tri tinh trang lam viec tot nha vay tao dieu kien t6t cho kha nang dieu chinh linh boat kh6i lugng nuac bom ep vao via TAI LIEU THAM KHAO Truang C6ng Tai, Nguyen Chu Chuyen, Nguyen Van Ut, 2001 Tuyin tap cdc cdng trinh khoa hgc Tap 34, Ha Noi, 6-2001, tr 107 - 110 Bao cao khoa hoc nam 1988, 1994, 1998, 2003, 2004 ciia phong C6ng nghe va ky thuat khai thac, Vien NCKH & TK, XNLD Vietsovpetro Tai lieu buong dan RD Ng-52-97 VSP Strenlixt D.V., 1984 Thuy luc Moskow Duong Danh Lam, 2000 Hodn thien cdng nghi xu ly viing can day gieng tdng mdng md Bgch Hd Tuyen tap bao cao Hoi nghi KHCN ''Ngdnh Ddu tru&c them thi ky 2P\ NXB Thanh nien, Ha Ngi, 2000