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T?I NGUY?N V? M?I TR??NG -------C?NG H?A X? H?I CH? NGH(A VI?T NAM ?c l?p - T? do - H?nh ph?c ---------------S?: 16/2024/TT-BTNMTH? N?i, ng?y 23 th?ng 9 nm 2024?TH?NG T?BAN H?NH QUY CHU?N K? THU?T QU?C GIA V? N??C KHAI TH?C TH?I, DUNG D?CH KHOAN V? M?N KHOAN TH?I C?A C?C C?NG TR?NH D?U KH? TR?N BI?NCn c? Lu?t Ti?u chu?n v? quy chu?n k? thu?t ng?y 29 th?ng 6 nm 2006;Cn c? Lu?t B?o v? m?i tr??ng ng?y 17 th?ng 11 nm 2020;Cn c? Ngh? ?nh s? 08/2022/N-CP ng?y 10 th?ng 01 nm 2022 c?a Ch?nh ph? quy ?nh chi ti?t thi h?nh m?t s? i?u c?a Lu?t B?o v? m?i tr??ng;Cn c? Ngh? ?nh s? 127/2007/N-CP ng?y 01 th?ng 8 nm 2007 c?a Ch?nh ph? quy ?nh chi ti?t thi h?nh m?t s? i?u c?a Lu?t Ti?u chu?n v? quy chu?n k? thu?t v? Ngh? ?nh s? 78/2018/N-CP ng?y 16 th?ng 5 nm 2018 c?a Ch?nh ph? s?a ?i, b? sung m?t s? i?u c?a Ngh? ?nh s? 127/2007/N-CP ng?y 01 th?ng 8 nm 2007 c?a Ch?nh ph? quy ?nh chi ti?t thi h?nh m?t s? i?u c?a Lu?t Ti?u chu?n v? quy chu?n k? thu?t;Cn c? Ngh? ?nh s? 68/2022/N-CP ng?y 22 th?ng 9 nm 2022 c?a Ch?nh ph? quy ?nh ch?c nng, nhi?m v?, quy?n h?n v? c? c?u t? ch?c c?a B? T?i nguy?n v? M?i tr??ng;Theo ? ngh? c?a C?c tr??ng C?c Ki?m so?t ? nhi?m m?i tr??ng, V? tr??ng V? Khoa h?c v? C?ng ngh?;B? tr??ng B? T?i nguy?n v? M?i tr??ng ban h?nh Th?ng t? ban h?nh Quy chu?n k? thu?t qu?c gia v? n??c khai th?c th?i, dung d?ch khoan v? m?n khoan th?i c?a c?c c?ng tr?nh d?u kh? tr?n bi?n.i?u 1. Ban h?nh k?m theo Th?ng t? n?y hai (02) Quy chu?n k? thu?t qu?c gia v? m?i tr??ng:1. QCVN 35:2024/BTNMT - Quy chu?n k? thu?t qu?c gia v? n??c khai th?c th?i c?a c?c c?ng tr?nh d?u kh? tr?n bi?n (National technical Regulation on Discharged Produced Water of Offshore Oil and Gas Facilities).2. QCVN 36:2024/BTNMT - Quy chu?n k? thu?t qu?c gia v? dung d?ch khoan v? m?n khoan th?i c?a c?c c?ng tr?nh thm d?, khai th?c d?u kh? tr?n bi?n (National technical Regulation on Drilling Fluids and Discharge of Drilling Cuttings from Offshore Oil and Gas exploration and production Activities).i?u 2. Th?ng t? n?y c? hi?u l?c t? ng?y 26 th?ng 3 nm 2025.K? t? ng?y Th?ng t? n?y c? hi?u l?c thi h?nh, kho?n 2 v? kho?n 3 i?u 1 Th?ng t? s? 42/2010/TT-BTNMT ng?y 29 th?ng 12 nm 2010 c?a B? tr??ng B? T?i nguy?n v? M?i tr??ng quy ?nh quy chu?n k? thu?t qu?c gia v? m?i tr??ng h?t hi?u l?c thi h?nh.i?u 3. C?c tr??ng C?c Ki?m so?t ? nhi?m m?i tr??ng, Th? tr??ng c?c ?n v? thu?c B? T?i nguy?n v? M?i tr??ng, Gi?m ?c S? T?i nguy?n v? M?i tr??ng c?c t?nh, th?nh ph? tr?c thu?c Trung ??ng v? c?c t? ch?c, c? nh?n li?n quan c? tr?ch nhi?m thi h?nh Th?ng t? n?y./.? N?i nh?n: - Vn ph?ng Trung ??ng v? c?c Ban c?a ?ng; - Vn ph?ng Qu?c h?i; - Vn ph?ng Ch? t?ch n??c; - Vn ph?ng Ch?nh ph?; - H?i ?ng D?n t?c, c?c UB c?a Qu?c h?i; - T?a ?n Nh?n d?n t?i cao; - Vi?n Ki?m s?t nh?n d?n t?i cao; - C?c B?, c? quan ngang B?, c? quan thu?c Ch?nh ph?; - C? quan trung ??ng c?a c?c o?n th?; - HND, UBND c?c t?nh, th?nh ph? tr?c thu?c TW; - S? TN&MT c?c t?nh, th?nh ph? tr?c thu?c TW; - C?c Ki?m tra vn b?n (B? T? ph?p); - C?ng b?o; C?ng TTT c?a Ch?nh ph?; - B? TN&MT: B? tr??ng, c?c Th? tr??ng, c?c ?n v? thu?c B?, C?ng TTT; - L?u: VT, KSONMT, KHCN, PC, CN&NH(230).KT. B? TR??NG TH? TR??NG L? C?ng Th?nh?QCVN 35:2024/BTNMTQUY CHU?N K? THU?T QU?C GIA V? N??C KHAI TH?C TH?I C?A C?C C?NG TR?NH D?U KH? TR?N BI?NNational technical Regulation on Discharged Produced Water of Offshore Oil and Gas Facilities?L?i n?i ?uQCVN 35:2024/BTNMT thay th? QCVN 35:2010/BTNMT - Quy chu?n k? thu?t qu?c gia v? n??c khai th?c th?i t? c?c c?ng tr?nh d?u kh? tr?n bi?n.QCVN 35:2024/BTNMT do C?c Ki?m so?t ? nhi?m m?i tr??ng bi?n so?n, B? Khoa h?c v? C?ng ngh? th?m ?nh v? ??c B? tr??ng B? T?i nguy?n v? M?i tr??ng ban h?nh theo Th?ng t? s? 16/2024/TT-BTNMT ng?y 23 th?ng 9 nm 2024.?QUY CHU?N K? THU?T QU?C GIA V? N??C KHAI TH?C TH?I C?A C?C C?NG TR?NH D?U KH? TR?N BI?NNational technical Regulation on Discharged Produced Water of Offshore Oil and Gas Facilities1. QUY ?NH CHUNG1.1. Ph?m vi i?u ch?nh:Quy chu?n n?y quy ?nh gi? tr? gi?i h?n cho ph?p c?a h?m l??ng d?u m? kho?ng trong n??c khai th?c th?i c?a c?c c?ng tr?nh d?u kh? khi th?i xu?ng v?ng bi?n Vi?t Nam.1.2. ?i t??ng ?p d?ng:Quy chu?n n?y ?p d?ng ?i v?i c?c t? ch?c, c? nh?n, c? quan qu?n l? nh? n??c li?n quan ?n ho?t ?ng th?i n??c khai th?c c?a c?c c?ng tr?nh khai th?c d?u kh? tr?n v?ng bi?n Vi?t Nam.1.3. Gi?i th?ch t? ng?:- N??c khai th?c th?i l? n??c ph?t sinh t? c?c v?a d?u kh? (h?n h?p c?a n??c v?a, n??c b?m ?p v? dung d?ch h?n h?p c?c ch?t ??c ?a v?o trong gi?ng) ??c t?ch ra trong qu? tr?nh khai th?c d?u.- H?m l??ng d?u m? kho?ng trung b?nh ng?y trong n??c khai th?c th?i l? trung b?nh c?ng gi? tr? t?ng h?m l??ng d?u m? kho?ng c?a 04 (b?n) m?u n??c khai th?c th?i, m?i m?u ??c l?y c?ch nhau 06 (s?u) gi? trong 01 (m?t) ng?y.2. QUY ?NH K? THU?TN??c khai th?c th?i ph?i ??c thu gom, x? l? b?o ?m gi? tr? gi?i h?n cho ph?p c?a h?m l??ng d?u m? kho?ng trung b?nh ng?y ??c quy ?nh t?i B?ng 1 sau ?y tr??c khi x? th?i xu?ng v?ng bi?n Vi?t Nam.B?ng 1: Gi? tr? gi?i h?n cho ph?p c?a h?m l??ng d?u m? kho?ng trung b?nh ng?y trong n??c khai th?c th?iSTTV? tr? th?iGi? tr? gi?i h?n cho ph?p (mg/l)1Trong v?ng bi?n 03 h?i l?; b?o ?m kho?ng c?ch l?n h?n 01 h?i l? t?i ranh gi?i ngo?i c?a c?c v?ng b?o v? nghi?m ng?t, v?ng h?n ch? ph?t th?i theo quy ?nh c?a ph?p lu?t v? b?o v? m?i tr??ngd" 5,02Trong v?ng bi?n t? 03 h?i l? t?i 06 h?i l?d" 103Trong v?ng bi?n t? ngo?i 06 h?i l? t?i 12 h?i l?d" 154Trong v?ng bi?n ngo?i 12 h?i l?d" 40?3. PH??NG PH?P X?C ?NH3.1. Ph??ng ph?p l?y m?u v? x?c ?nh h?m l??ng d?u m? kho?ng trong n??c khai th?c th?i ??c th?c hi?n theo c?c ti?u chu?n t?i B?ng 2 sau ?y:B?ng 2: Ph??ng ph?p l?y m?u v? x?c ?nh h?m l??ng d?u m? kho?ng trong n??c khai th?c th?iTTTh?ng s?Ph??ng ph?p ph?n t?ch, s? hi?u ti?u chu?n(1)(2)(3)1L?y m?u- TCVN 5999:1995 - Ch?t l??ng n??c - L?y m?u - H??ng d?n l?y m?u n??c th?i.- TCVN 6663-1:2011 (ISO 5667-1:2006) - Ch?t l??ng n??c - L?y m?u - Ph?n 1: h??ng d?n l?p ch??ng tr?nh l?y m?u v? k? thu?t l?y m?u.- TCVN 6663-3:2016 (ISO 5667-3:2012) - Ch?t l??ng n??c - L?y m?u - Ph?n 3: B?o qu?n v? x? l? m?u n??c.2T?ng d?u m? kho?ng- TCVN 5070:1995 - Ch?t l??ng n??c. Ph??ng ph?p kh?i l??ng x?c ?nh d?u m? v? s?n ph?m d?u m?.- TCVN 9718:2013 (ASTM D3912-96) - Ch?t l??ng n??c - Ph??ng ph?p x?c ?nh h?m l??ng d?u, m? v? hydrocacbon d?u m? trong n??c.- TCVN 9718:2013 (ASTM D3921-96) - Ch?t l??ng n??c - Ph??ng ph?p x?c ?nh h?m l??ng d?u, m? v? hydrocacbon d?u m? trong n??c.- SMEWW 5520B&F:2023 - Standard Methods for the Examination of Water and Wastewater - Oil and Grease - Liquid-liquid, Partition-Gravimetric method (B) & Hydrocarbon (F).- SMEWW 5520C&F:2023 -- Standard Methods for the Examination of Water and Wastewater - Oil and Grease - Partition-Infrared Method (C) & Hydrocarbon (F).- ASTM D2008-12 (2018) - Standard Test Method for Ultraviolet Absorbance and Absorptivity of Petroleum Products.- ASTM D5412-93 (2017) - Standard Test Method for Quantification of Complex Polycyclic Aromatic Hydrocarbon Mixtures of Petroleum Oils in Water.- ASTM D7066-04 (2017) - Standard Test Method for dimer/trimer of chlorotrifluoroethylene (S-316) Recoverable Oil and Grease and Nonpolar Material by Infrared Determination.- ASTM D7678-17- Standard Test Method for Total Petroleum Hydrocarbons (TPH) in Water and Wastewater with Solvent Extraction using Mid-IR Laser Spectroscopy.- ASTM D8193-18 - Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbon (TPH) in Water and Wastewater with Solvent Extraction Using Non - Disperive Mid-IR Transmission Spectroscopy.- EPA method 1664B - n-Heane Extractable Material (HEM; Oil and Grease) and Silica Gel Treated n- Hexane Extractable Material (SGT-HEM; Non-polar Material) by Extraction and Gravimetry.Tr??ng h?p x?c ?nh h?m l??ng d?u m? kho?ng s? d?ng nhi?u ph??ng ph?p th? nghi?m (ph?n t?ch) kh?c nhau v? c?n ph??ng ph?p tr?ng t?i ? x? l? khi x?y ra tranh ch?p, khi?u n?i, khi?u ki?n th? s? d?ng ph??ng ph?p th? nghi?m x?p ?u ti?n t?i c?t 3 B?ng 2 Quy chu?n n?y.3.2. Ch?p thu?n c?c ph??ng ph?p th? nghi?m kh?c (ch?a ??c vi?n d?n t?i c?t 3 B?ng 2 Quy chu?n n?y), bao g?m: TCVN m?i ban h?nh; ph??ng ph?p ti?u chu?n qu?c gia c?a m?t trong c?c qu?c gia thu?c Nh?m c?c qu?c gia c?ng nghi?p ph?t tri?n (G7), T? ch?c Ti?u chu?n h?a Ch?u ?u (CEN/EN), c?c qu?c gia th?nh vi?n c?a Li?n minh Ch?u ?u, H?n Qu?c ho?c T? ch?c ti?u chu?n h?a qu?c t? (ISO) ho?c c?c ph??ng ph?p chu?n th? nghi?m n??c v? n??c th?i (Standard Methods for the Examination of Water and Wastewater - SMEWW).4. QUY ?NH QU?N L?4.1. Vi?c x? n??c khai th?c th?i ??c ?nh gi? l? tu?n th? v? ph? h?p v?i Quy chu?n n?y khi k?t qu? quan tr?c, ph?n t?ch c?a h?m l??ng d?u m? kho?ng trung b?nh ng?y c? trong n??c khai th?c th?i sau khi x? l? kh?ng v??t qu? gi? tr? gi?i h?n cho ph?p quy ?nh t?i B?ng 1 Quy chu?n n?y.4.2. T?n su?t quan tr?c n??c khai th?c th?i: t?i thi?u 03 th?ng/l?n, m?i l?n th?c hi?n ph?n t?ch 04 m?u/ng?y, m?i m?u ??c l?y c?ch nhau 06 (s?u) gi? trong 01 (m?t) ng?y.4.3. Ph??ng th?c ?nh gi? s? tu?n th? v? ph? h?p v?i Quy chu?n n?y t?i m?c 4.2 ??c th?c hi?n th?ng qua quan tr?c, ph?n t?ch m?u n??c khai th?c th?i.4.4. Vi?c quan tr?c h?m l??ng d?u m? kho?ng trong n??c khai th?c th?i quy ?nh t?i B?ng 1 Quy chu?n n?y ph?i ??c th?c hi?n b?i t? ch?c ? ??c c?p gi?y ch?ng nh?n ? i?u ki?n ho?t ?ng d?ch v? quan tr?c m?i tr??ng theo quy ?nh c?a ph?p lu?t.4.5. K?t qu? ?nh gi? s? tu?n th? v? ph? h?p so v?i Quy chu?n n?y l? c? s? ? c? quan qu?n l? nh? n??c xem x?t, x? l? theo quy ?nh c?a ph?p lu?t.5. TR?CH NHI?M C?A T? CH?C, C? NH?N5.1. Khi x? n??c khai th?c xu?ng v?ng bi?n Vi?t Nam, d? ?n ?u t?, c? s? khai th?c d?u kh? ph?i b?o ?m gi? tr? c?a h?m l??ng d?u m? kho?ng trung b?nh ng?y trong n??c khai th?c th?i kh?ng ??c v??t qu? gi? tr? gi?i h?n cho ph?p theo quy ?nh t?i B?ng 1 Quy chu?n n?y.5.2. Ch? ?u t? d? ?n khai th?c d?u kh? tr?n bi?n c? tr?ch nhi?m th?c hi?n c?c quy ?nh t?i Quy chu?n n?y trong qu? tr?nh ho?t ?ng, ?ng th?i cung c?p th?ng tin ?y ? v? vi?c x? n??c khai th?c cho c?c c? quan qu?n l? khi ??c y?u c?u.6. T? CH?C TH?C HI?N6.1. B? T?i nguy?n v? M?i tr??ng v? ?y ban nh?n d?n c?c t?nh, th?nh ph? tr?c thu?c Trung ??ng c? tr?ch nhi?m h??ng d?n, ki?m tra, thanh tra vi?c th?c hi?n Quy chu?n n?y.6.2 Tr??ng h?p c?c vn b?n, quy ?nh ??c vi?n d?n t?i Quy chu?n n?y s?a ?i, b? sung ho?c thay th? th? ?p d?ng theo vn b?n, quy ?nh m?i./.?QCVN 36:2024/BTNMTQUY CHU?N K? THU?T QU?C GIA V? DUNG D?CH KHOAN V? M?N KHOAN TH?I C?A C?C C?NG TR?NH THM D?, KHAI TH?C D?U KH? TR?N BI?NNational technical Regulation on Drilling Fluids and Discharge of Drilling Cuttings from Offshore Oil and Gas exploration and production Activities?L?i n?i ?uQCVN 36:2024/BTNMT thay th? QCVN 36:2010/BTNMT - Quy chu?n k? thu?t qu?c gia v? dung d?ch khoan v? m?n khoan th?i c?a c?c c?ng tr?nh d?u kh? tr?n bi?n.QCVN 36:2024/BTNMT do C?c Ki?m so?t ? nhi?m m?i tr??ng bi?n so?n, B? Khoa h?c v? C?ng ngh? th?m ?nh v? ??c B? tr??ng B? T?i nguy?n v? M?i tr??ng ban h?nh theo Th?ng t? s? 16/2024/TT-BTNMT ng?y 23 th?ng 9 nm 2024.?QUY CHU?N K? THU?T QU?C GIA V? DUNG D?CH KHOAN V? M?N KHOAN TH?I C?A C?C C?NG TR?NH THM D?, KHAI TH?C D?U KH? TR?N BI?NNational technical Regulation on Drilling Fluids and Discharge of Drilling Cuttings from Offshore Oil and Gas exploration and production Activities1. QUY ?NH CHUNG1.1. Ph?m vi i?u ch?nh:Quy chu?n n?y quy ?nh gi? tr? gi?i h?n cho ph?p c?a c?c th?ng s? li?n quan ?n m?i tr??ng trong dung d?ch khoan ??c ph?p s? d?ng v? gi? tr? gi?i h?n cho ph?p c?a dung d?ch n?n b?m d?nh trong m?n khoan c?a c?c c?ng tr?nh thm d?, khai th?c d?u kh? khi th?i xu?ng v?ng bi?n Vi?t Nam.1.2. ?i t??ng ?p d?ng:Quy chu?n n?y ?p d?ng ?i v?i c?c t? ch?c, c? nh?n, c? quan qu?n l? nh? n??c li?n quan ?n ho?t ?ng s? d?ng dung d?ch khoan v? th?i m?n khoan t? c?c c?ng tr?nh thm d?, khai th?c d?u kh? tr?n v?ng bi?n Vi?t Nam.1.3. Gi?i th?ch t? ng?:- Dung d?ch n?n l? d?u kho?ng, d?u kho?ng tinh luy?n ho?c d?u t?ng h?p ??c s? d?ng l?m pha li?n t?c ? pha ch? dung d?ch khoan n?n kh?ng n??c.- Dung d?ch khoan l? dung d?ch ??c s? d?ng trong qu? tr?nh khoan thm d? v? khai th?c d?u kh? ? l?m m?t v? b?i tr?n mii khoan, truy?n nng l??ng thu? l?c ?n mii khoan, tr?m k?n c?c ch? th?m, b?o tr? th?nh gi?ng, ?a m?n khoan l?n kh?i gi?ng khoan v? c?n b?ng ?p su?t trong gi?ng khoan.- Dung d?ch khoan n?n n??c (Water - Based Drilling Fluids - WBDF) l? dung d?ch khoan s? d?ng n??c l?m pha li?n t?c v? m?t s? ph? gia kh?c.- Dung d?ch khoan n?n kh?ng n??c (Non - Aqueous Drilling Fluids - NADF) l? dung d?ch khoan s? d?ng dung d?ch n?n l?m pha li?n t?c v? m?t s? ph? gia kh?c.- Barit l? m?t s?n ph?m c?a qu? tr?nh tinh tuy?n qu?ng barit, th?nh ph?n ch?nh l? bari sunfat (BaSO4). Barit s? d?ng l?m ch?t gia tr?ng cho dung d?ch khoan.- M?n khoan l? h?n h?p c?c m?nh v?n ?t ? ??c mang l?n kh?i gi?ng khoan c?ng v?i dung d?ch khoan.- Kh? nng ph?n r? sinh h?c l? k?t qu? ?nh gi? s? ph?n hu? c?c h?p ch?t h?u c? b?ng vi sinh v?t (trong i?u ki?n c? ho?c kh?ng c? oxy) ? t?o th?nh c?cbon dioxyt, n??c, mu?i kho?ng v? sinh kh?i m?i c?a v?t ch?t ?.- ? ?c tr?m t?ch l? m?c ? ph?n ?ng b?t l?i ??c quan s?t th?y ? sinh v?t th? nghi?m khi ti?p x?c v?i tr?m t?ch b? ? nhi?m. ? ?c tr?m t?ch ??c o l??ng b?ng gi? tr? LC50 tr?n sinh v?t th? nghi?m l? v?m xanh (Perna viridis) trong 96 gi? (LC50-96h).- LC50 (50% Lethal concentration) l? n?ng ? c?a m?t h?a ch?t g?y ch?t 50% s? c? th? th? nghi?m trong m?t kho?ng th?i gian ti?p x?c nh?t ?nh.2. QUY ?NH K? THU?T2.1. Quy ?nh v? dung d?ch khoan n?n n??cDung d?ch khoan n?n n??c ??c ph?p s? d?ng trong ho?t ?ng thm d? v? khai th?c d?u kh? tr?n v?ng bi?n Vi?t Nam khi gi? tr? c?a thu? ng?n v? cadimi trong barit d?ng ? pha dung d?ch khoan kh?ng v??t qu? gi? tr? gi?i h?n cho ph?p quy ?nh t?i B?ng 1 sau ?y:B?ng 1: Gi? tr? gi?i h?n c?a thu? ng?n v? cadimi trong barit d?ng ? pha dung d?ch khoan n?n n??cSTTTh?ng s??n v?Gi? tr? gi?i h?n1Th?y ng?n trong baritmg/kg kh?i l??ng kh?d" 1,02Cadimi trong baritmg/kg kh?i l??ng kh?d" 3,02.2. Quy ?nh v? m?n khoan v? dung d?ch khoan n?n kh?ng n??c2.2.1. Dung d?ch khoan n?n kh?ng n??c ??c ph?p s? d?ng t?i v?ng bi?n Vi?t Nam khi ?p ?ng c?c y?u c?u sau:a) Gi? tr? c?a th?y ng?n, cadimi trong barit v? PAHs, kh? nng ph?n r? sinh h?c c?a dung d?ch n?n d?ng ? pha dung d?ch khoan n?n kh?ng n??c ?p ?ng quy ?nh t?i B?ng 2 sau ?y:B?ng 2: Gi? tr? cho ph?p c?a thu? ng?n, cadimi trong barit; PAHs v? kh? nng ph?n r? sinh h?c c?a dung d?ch n?n d?ng ? pha dung d?ch khoan n?n kh?ng n??cSTTTh?ng s??n v?Gi? tr? gi?i h?n1Th?y ng?n trong baritmg/kg kh?i l??ng kh?d" 1,02Cadimi trong baritmg/kg kh?i l??ng kh?d" 3,03C?c h?p ch?t hydrocacbon th?m a v?ng PAHs (Polycyclic Aromatic Hydrocarbons) trong dung d?ch n?nmg/kgd" 104Kh? nng ph?n r? sinh h?c c?a dung d?ch n?n%e" 50b) Dung d?ch khoan n?n kh?ng n??c ph?i ?m b?o ? ?c tr?m t?ch (LC50) ?t gi? tr? e" 10.000 mg/kg tr?n sinh v?t th? nghi?m l? v?m xanh trong 96 gi?.2.2.2. M?n khoan ph?t sinh trong ho?t ?ng thm d?, khai th?c d?u kh? s? d?ng dung d?ch khoan n?n kh?ng n??c ch? ??c ph?p th?i xu?ng v?ng bi?n Vi?t Nam khi ?m b?o h?m l??ng dung d?ch n?n c?a dung d?ch khoan n?n kh?ng n??c b?m d?nh trong m?n khoan th?i kh?ng v??t qu? 9,0% t?nh theo kh?i l??ng ??t.3. PH??NG PH?P X?C ?NH3.1. Ph??ng ph?p x?c ?nh c?c gi? tr? gi?i h?n c?a c?c th?ng s? quy ?nh t?i m?c 2.1 v? m?c 2.2 Quy chu?n n?y ??c th?c hi?n theo quy ?nh t?i B?ng 3 sau ?y:B?ng 3: Ph??ng ph?p quan tr?c c?c th?ng s? trong barit, dung d?ch n?n, dung d?ch khoan v? m?n khoanSTTTh?ng s?Ph??ng ph?p x?c ?nh, s? hi?u ti?u chu?n, t?n ti?u chu?n(1)(2)(3)1Th?y ng?n- TCVN 6649:2000 (ISO 11466:1995) - Ch?t l??ng ?t - Chi?t c?c nguy?n t? v?t tan trong n??c c??ng th?y.- TCVN 8885:2011 (ISO 22036:2008) - Ch?t l??ng ?t - X?c ?nh nguy?n t? v?t trong d?ch chi?t ?t b?ng ph? ph?t x? nguy?n t? Plasma c?p c?m ?ng.- TCVN 8882:2011 (ISO 16772:2004) - Ch?t l??ng ?t - X?c ?nh th?y ng?n trong d?ch chi?t ?t c??ng th?y d?ng ph? h?p th? nguy?n t? h?i - l?nh ho?c ph? h?p th? nguy?n t? hu?nh quang h?i - l?nh.- TCVN 8885:2011 (ISO 22036:2008) - Ch?t l??ng ?t - X?c ?nh nguy?n t? v?t trong d?ch chi?t ?t b?ng ph? ph?t x? nguy?n t? Plasma c?p c?m ?ng.- TCVN 8882:2011 (ISO 16772:2004) - Ch?t l??ng ?t - X?c ?nh th?y ng?n trong d?ch chi?t ?t c??ng th?y d?ng ph? h?p th? nguy?n t? h?i - l?nh ho?c ph? h?p th? nguy?n t? hu?nh quang h?i - l?nh.- EPA Method 3050B - Acid digestion of sediments, sludges and soils.- EPA Method 200.7 - Determination of metals and trace elements in water and wastes by Inductively coupled plasma-atomic emission spectrometry.- EPA Method 7471B - Mercury in Solid or semisolid waste (Manual cold - vapor technique).- ISO 10416:2008 (m?c 8) - Petroleum and natural gas imdustries - Drilling fluids - Laboratory testing.- SMEWW 3112B: 2023 - Standard Methods for the Examination of Water and Wastewater - Metals By Cold- Vapor Atomic Absorption Spectrometric Method.2Cadimi- TCVN 6496:2009 (ISO 11047:1998) - Ch?t l??ng ?t - X?c ?nh cadimi, crom, coban, ch?, ?ng, k?m, mangan v? niken trong d?ch chi?t ?t b?ng c??ng th?y - C?c ph??ng ph?p ph? h?p th? nguy?n t? ng?n l?a v? nhi?t i?n (kh?ng ng?n l?a).- EPA Method 3050B - Acid digestion of sediments, sludges and soils.- EPA Method 200.7 - Determination of metals and trace elements in water and wastes by Inductively coupled plasma-atomic emission spectrometry.- ISO 10416:2008 - (m?c 9) - Petroleum and natural gas industries - Drilling fluids - Laboratory testing.3C?c h?p ch?t hydrocacbon th?m a v?ng PAHs (Polycyclic Aromatic Hydrocarbons)- EPA Method 1654A - PAH Content of Oil by HPLC/UV.- EPA Method 8270E - Semivolatile organic compounds by gas chromatography/mass spectrometry.- EPA Method 8275A - Semivolatile organic compounds (PAHs and PCBs) in Soils/Sludges and Solid wastes using thermal extraction/gas chromatography/mass spectrometry (TE/GC/MS).- EPA method 8310 - Polynuclear aromatic hydrocarbons.- EPA method 8270E - Semivolatile organic compounds by Gas chromatography/mass spectrometry.- SMEWW 6440B:2023 - Standard Methods for the Examination of Water and Wastewater- Polynuclear aromatic hydrocarbons - Liquid - Liquid Extraction Chromatographic method (B).- SMEWW 6440C:2023 - Standard Methods for the Examination of Water and Wastewater- Polynuclear aromatic hydrocarbons - Liquid - Liquid Extraction Gas Chromatographic/ Mass spectrometric method (C).4? ?c tr?m t?ch- ASTM E1367 - 03 (2014) - Standard Test Method for Measuring the Toxicity of Sediment - Associated Contaminants with Estuarine and Marine Invertebrates.- SMEWW 8610, 8740 A-D: 2023 - Standard Methods for the Examination of Water and Wastewater - Mollusks, Decapods.5Kh? nng ph?n r? sinh h?c- OECD 306 - Biodegradability in Seawater.- BODIS Marine TC/147.SC5/WG4 N141 (? ??c i?u ch?nh t? ti?u chu?n ISO 10708:1997) - BOD test for Insoluble substances.- EPA Method 1647 (? ??c i?u ch?nh t? ti?u chu?n ISO 11734:1995) - Protocal for the Determination of Degradation of Non - aqueous base fluids in a marine closed bottle biodegradation.6Dung d?ch n?n trong m?n khoan th?i (H?m l??ng d?u)- EPA Method 1674 - Determination of the amount of non- aqueous drilling fluid (NAF) base fluid from drill cutting by a Retort chamber.- ISO 10414 - 2: 2011 - Petroleum and natural gas industries field testing of drilling fluids - Part 2- Oil- based fluids - Annex B - Determination of oil and water retained on cuttings.Tr??ng h?p m?t ch?t ? nhi?m cho ph?p s? d?ng nhi?u ph??ng ph?p th? nghi?m (ph?n t?ch) kh?c nhau v? c?n ph??ng ph?p tr?ng t?i ? x? l? khi x?y ra tranh ch?p, khi?u n?i, khi?u ki?n th? s? d?ng ph??ng ph?p th? nghi?m x?p ?u ti?n t?i c?t 3 B?ng 3 Quy chu?n n?y.3.2. Ch?p thu?n c?c ph??ng ph?p th? nghi?m kh?c (ch?a ??c vi?n d?n t?i c?t 3 B?ng 3 Quy chu?n n?y), bao g?m: TCVN m?i ban h?nh; ph??ng ph?p ti?u chu?n qu?c gia c?a m?t trong c?c qu?c gia thu?c Nh?m c?c qu?c gia c?ng nghi?p ph?t tri?n (G7), T? ch?c Ti?u chu?n h?a Ch?u ?u (CEN/EN), c?c qu?c gia th?nh vi?n c?a Li?n minh Ch?u ?u, H?n Qu?c ho?c T? ch?c ti?u chu?n h?a qu?c t? (ISO) ho?c c?c ph??ng ph?p chu?n th? nghi?m n??c v? n??c th?i (Standard Methods for the Examination of Water and Wastewater - SMEWW).4. QUY ?NH QU?N L?4.1. Vi?c s? d?ng dung d?ch khoan n?n n??c ??c ?nh gi? l? tu?n th? v? ph? h?p v?i Quy chu?n n?y khi k?t qu? ph?n t?ch c?a thu? ng?n v? cadimi trong barit d?ng ? pha dung d?ch khoan kh?ng v??t qu? gi? tr? gi?i h?n cho ph?p quy ?nh t?i B?ng 1 Quy chu?n n?y.4.2. Vi?c s? d?ng dung d?ch khoan n?n kh?ng n??c ??c ?nh gi? l? tu?n th? v? ph? h?p v?i Quy chu?n n?y khi k?t qu? ph?n t?ch c?a th?y ng?n, cadimi trong barit v? PAHs, kh? nng ph?n r? sinh h?c c?a dung d?ch n?n d?ng ? pha dung d?ch khoan n?n kh?ng n??c ?p ?ng quy ?nh t?i B?ng 2 Quy chu?n n?y v? dung d?ch khoan n?n kh?ng n??c ph?i ?m b?o ? ?c tr?m t?ch (LC50) ?t gi? tr? e" 10.000 mg/kg tr?n sinh v?t th? nghi?m l? v?m xanh trong 96 gi?.4.3. Tr??c m?i chi?n d?ch khoan, ch? ?u t? d? ?n thm d?, khai th?c d?u kh? tr?n bi?n ti?n h?nh th? nghi?m c?c th?ng s? trong barit, dung d?ch n?n v? dung d?ch khoan theo c?c quy ?nh t?i m?c 2.1 v? m?c 2.2.1 Quy chu?n n?y.4.4. T?n su?t quan tr?c m?n khoan th?i khi s? d?ng dung d?ch khoan n?n kh?ng n??c: 02 l?n/ng?y t?i c?ng tr?nh thm d?, khai th?c d?u kh? ngay tr??c th?i i?m th?i m?n khoan xu?ng bi?n.4.5. Ph??ng th?c ?nh gi? s? tu?n th? v? ph? h?p v?i Quy chu?n n?y ??c th?c hi?n th?ng qua ph?n t?ch m?u barit, m?u dung d?ch n?n ? pha dung d?ch khoan v? m?u dung d?ch khoan.4.6. Vi?c x?c ?nh c?c th?ng s? li?n quan ?n m?i tr??ng trong dung d?ch khoan v? m?n khoan th?i ? cung c?p th?ng tin, s? li?u cho c? quan qu?n l? nh? n??c ph?i ??c th?c hi?n b?i t? ch?c ? ??c c?p gi?y ch?ng nh?n ? i?u ki?n ho?t ?ng d?ch v? quan tr?c m?i tr??ng theo quy ?nh ph?p lu?t.4.7. K?t qu? ph?n t?ch m?u barit, m?u dung d?ch n?n ? pha dung d?ch khoan v? dung d?ch khoan cho m?i ?t s? d?ng v? x? th?i ??c d?ng ? ?nh gi? s? tu?n th? v? ph? h?p so v?i Quy chu?n n?y v? l? c? s? ? c? quan qu?n l? nh? n??c xem x?t, x? l? theo quy ?nh c?a ph?p lu?t.5. TR?CH NHI?M C?A T? CH?C, C? NH?N5.1. Dung d?ch khoan n?n n??c ch? s? d?ng khi tu?n th? c?c quy ?nh t?i m?c 2.1 Quy chu?n n?y.5.2. Dung d?ch khoan n?n kh?ng n??c ch? s? d?ng khi tu?n th? c?c quy ?nh t?i m?c 2.2.1 Quy chu?n n?y.5.3. M?n khoan ph?t sinh trong ho?t ?ng thm d?, khai th?c d?u kh? s? d?ng dung d?ch khoan n?n kh?ng n??c khi th?i xu?ng v?ng bi?n Vi?t Nam ph?i ?p ?ng quy ?nh t?i m?c 2.2.2 Quy chu?n n?y.5.4. Ch? ?u t? d? ?n thm d?, khai th?c d?u kh? tr?n bi?n c? tr?ch nhi?m th?c hi?n c?c quy ?nh t?i Quy chu?n n?y khi s? d?ng dung d?ch khoan tr??c m?i chi?n d?ch khoan v? x? th?i m?n khoan trong qu? tr?nh ho?t ?ng, ?ng th?i cung c?p th?ng tin ?y ? v? vi?c s? d?ng v? vi?c x? th?i dung d?ch khoan, m?n khoan c?a c?c c?ng tr?nh thm d?, khai th?c d?u kh? cho c?c c? quan qu?n l? khi ??c y?u c?u.6. T? CH?C TH?C HI?N6.1. B? T?i nguy?n v? M?i tr??ng v? ?y ban nh?n d?n c?c t?nh, th?nh ph? tr?c thu?c Trung ??ng c? tr?ch nhi?m h??ng d?n, ki?m tra, thanh tra vi?c th?c hi?n Quy chu?n n?y.6.2. Tr??ng h?p c?c vn b?n, quy ?nh ??c vi?n d?n t?i Quy chu?n n?y s?a ?i, b? sung ho?c thay th? th? ?p d?ng theo vn b?n, quy ?nh m?i./.?HJ? 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