THE MINISTRY OF NATURAL RESOURCES AND ENVIRONMENT
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|
THE SOCIALIST REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
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|
No. 22/2015/TT-BTNMT
|
Hanoi, May
28, 2015
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CIRCULAR
STIPULATING
THE ENVIRONMENTAL PROTECTION IN THE PROCESS OF USING DRILLING FLUIDS; WASTE
MANAGEMENT AND ENVIRONMENTAL MONITORING FOR OFFSHORE OIL AND GAS OPERATIONS
Pursuant to the Law on Environmental
Protection adopted in 2014;
Pursuant to the Law on Petroleum
adopted in 1993; the Law on Amendment and Supplementation to the Law on
Petroleum adopted in 2000; the Law on Amendment and Supplementation to the Law
on Petroleum adopted in 2008;
Pursuant to the Government’s Decree
No. 21/2013/NĐ-CP dated March 4, 2013 on defining the functions, tasks, powers
and organizational structure of the Ministry of Natural Resources and
Environment;
After considering the request made by
the Director of the General Department of Environment and the Director of the
Department of Legal Affairs;
The Minister of Natural Resources and
Environment hereby provides regulations on the environmental protection in the
process of using drilling fluids; waste management and environmental monitoring
for offshore oil and gas operations,
Article 1.
Scope of application and applicable entities
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2. This
Circular shall apply to the environment administration agency, organization or
individual engaged in gas and oil-related operations within territorial waters,
exclusive economic zones and continental shelves of the Socialist Republic of
Vietnam.
Article 2.
Interpretation of terms
Terms used herein shall be construed
as follows:
1. Offshore
oil and gas operations refer to exploration, extraction, transportation,
storage and processing of gas and oil as well as rendering of other technical
services directly related to these operations which take place on the sea.
2. Petroleum
organization refers to any individual or organization carrying out oil and gas
operations on the sea in accordance with legal regulations.
3. Oil
and gas facilities refer to a wide range of mobile or fixed drilling rigs, works,
equipment and other structures used for offshore oil and gas operations.
4. Drilling
fluid refers to circulated fluids used in the process of oil and gas
exploration and extraction drilling in order to remove drill cuttings from
drilled wells and control formation pressures, cool and lubricate drill bits, transmit
hydraulic energy to drill bits, seal permeable formations and maintain well
bores.
5. Water
- based drilling fluid – WBDF refers to the drilling mud containing water as
the continuous phase and other additives.
6. Non
– aqueous drilling fluid – NADF refers to the drilling mud containing the
synthetic oil as the continuous phase and other additives.
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8. Environmentally
sensitive area includes natural sanctuaries, national parks, museums, world
heritage sites, biosphere reserves and scenic beauty sites which have been
ranked.
9. MARPOL
convention or MARPOL 73/78 is short for the International Convention for the
prevention of marine pollution from ships.
Article 3.
Using non – aqueous drilling fluids
1. Non-aquerous
drilling fluids are used as a replacement for water-based drilling fluids to aid
the technically difficult drilling of boreholes, including one of the following
circumstances:
a) Drilling through geological layers
which are complex and exposed to a lot of risks such as easy corrosion, drill
suspension, drilling fluid loss and well blowout;
b) Dealing with problems that may
arise during the drilling process;
c) Providing flow assurance.
2. Vietnam
Environment Administration shall consider and permit non-aquerous drilling
fluids to be used in specific situations.
3. Before
using non-aquerous drilling fluids, the oil and gas organization shall file
application for use of non-aquerous drilling fluids to the division for
administrative receipt and result response affiliated to the Ministry of
Natural Resources and Environment. This application includes the following documents:
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b) If non-aquerous drilling fluids
are used for the first time in Vietnam, documentation submitted to apply for
permission to use non-aquerous drilling fluids must include the original of the
analysis result as prescribed in the national technical regulations on
discharge of drilling fluids and drilling cuttings from offshore oil and gas
facilities. Tests conducted in Vietnam’s
environmental conditions in laboratory rooms of which the conformity to accepted
standards for environmental monitoring service has been accredited by the
Ministry of Natural Resources and Environment, or in those which achieve the
quality standard;
c) Other documents relating to
non-aquerous drilling fluids (if available);
d) Within 03 (three) working days
from the receipt of all necessary documents, Vietnam Environment Administration
shall be responsible for advising organizations or individuals to improve their
documentation if their submitted documents are insufficient or illegitimate in
accordance with regulations;
dd) Within 10 (ten) working days from
the receipt of all sufficient and valid documents, Vietnam Environment
Administration shall confer with the General Department of Vietnam’s Sea and
Islands on applications for use of non-aquerous drilling fluids; review these
applications, opinions from the General Department of Vietnam’s Sea and Islands
and respond in writing to petroleum organizations with use of non-aquerous
drilling fluids. The written response must clearly
state consent or refusal.
4. Vietnam
Environment Administration shall compile, post and update the list of
non-aquerous drilling fluids which have been approved for use on their website.
5. Petroleum
organizations, when using non-aquerous drilling fluids, must stick to the plan
approved by environmental administration agencies, and send a report on the
process of using non-aquerous drilling fluids to Vietnam Environment
Administration within a maximum of 30 days after each time such fluids are
used.
Article 4.
Waste management
1. Effluents
discharged from offshore oil and gas extraction facilities shall be treated and
disposed of in compliance with the national technical regulation on effluents
discharged from offshore oil and gas extraction facilities.
2. Other
sources of effluents coming from offshore oil and gas extraction facilities
shall be collected, treated and disposed of in accordance with regulations
given in the Table 1 hereof.
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Requirements for collection,
treatment and disposal of effluents discharged from offshore oil and gas extraction
facilities
No.
Discharge position
Effluent discharge source
Requirement
1
Less than 03 (three) nautical miles
away from the shore
Water used for cleaning machinery,
equipment and oil hold.
Collection, treatment and disposal
in conformity with national technical regulations on industrial effluent
wastewater
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Collection, treatment and disposal
in conformity with national technical regulations on domestic wastewater
2
From 03 (three) to 12 (twelve)
nautical miles away from the shore
Water used for cleaning machinery,
equipment and oil hold.
Collection, treatment, disposal and
certificate of oil pollution prevention in compliance with requirements
stipulated in the Appendix I given in the MARPOL convention.
Domestic wastewater
Collection, treatment, disposal and
certificate of domestic wastewater pollution prevention in compliance with
requirements stipulated in the Appendix IV given in the MARPOL convention.
3
More than 12 (twelve) nautical
miles away from the shore
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Collection, treatment in conformity
with the maximum oil content of 15 mg/l before discharge into the sea.
Domestic wastewater
Collection and discharge into the
sea.
3. Classification, collection, storage and management of wastes
without harm to offshore oil and gas extraction facilities:
a) Common domestic and industrial
solid wastes are collected and classified into 03 groups, including food wastes,
waste materials for reuse or recycling and the rest of normal wastes;
b) Waste food before being dumped
into the sea must be ground into objects with less than 25 mm in size;
c) Wastes being items made from wood,
paper or cartons are burned to ash before being discharged into the sea;
d) Waste materials for reuse or
recycling and the rest of normal wastes must be collected and carried ashore.
4. Classification,
collection, storage of hazardous wastes within offshore oil and gas extraction
facilities:
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b) Hazardous wastes with the same
nature of hazard, the same treatment method and without producing reactions,
must be stored in the same sealed instrument;
c) Instruments containing hazardous
wastes must have clear labels that help to distinguish which types of wastes
have been collected.
5. Carriage
of wastes to the mainland:
a) Hazardous and non-hazardous
wastes, after being classified, stored in skips shall be separately transported
or grouped into the same container to carry them to the mainland by service
vessels;
b) Transportation of wastes by
service vessels must conform to applicable laws on hazardous waste management.
Article 5.
Environmental monitoring
1. Petroleum
organizations are only allowed to use water-based drilling fluids in offshore
oil and gas exploration drilling operations that do not require the
environmental monitoring before and after completion of such exploration
drilling.
2. As
for oil and gas exploration drilling operations using non-aquerous drilling
fluids in the waters which are 3 nautical miles away from the shore and
environmentally sensitive area, the background environmental monitoring must be
performed once before each exploration drilling and once within 01 year from
completion of such exploration drilling.
3. Environmental
monitoring for development stage drilling:
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a) Environmental monitoring for a
facility or a complex of facilities: the background environmental monitoring is
performed once before the commencement of development and extraction drilling;
once within 01 year from the time of gaining the first commercial oil or gas
flow. Executing the environmental monitoring program on a triennial
basis that begins on the time of commencing the first environmental monitoring
program in the post-development drilling stage;
b) Environmental monitoring for main
oil or gas pipeline: performing once before installation; requiring none of periodic
environmental monitoring, except when leakage, fire or explosion occurs.
4. Monitoring
area, position, time, frequency and parameter shall be governed by regulations
laid down in the Appendix 2 hereof.
5. Within
one hundred twenty (120) days from the date on which one monitoring is
completed, the petroleum organization shall provide the Ministry and the
Department of Natural Resources and Environment where oil and gas operations
occur with 01 printed report of one monitoring and 01 CD of monitoring result
report.
Article 6.
Implementation and implementary provisions
1. This
Circular shall come into force from July 20, 2015.
2. Vietnam Environment Administration
shall be responsible for providing guidance on and inspecting implementation of
this Circular.
3. In the course of implementation,
if there is any difficulty that may arise, Ministries, departments and local
authorities, organizations or individuals, should send timely feedbacks to the
Ministry of Natural Resources and Environment for the purpose of compiling a
general report for submission to the Minister for consideration and decision./.
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PP. THE MNISTER
THE DEPUTY MINISTER
Bui Cach Tuyen
APPENDIX
1
APPLICATION
FORM FOR USE OF NON-AQUEROUS DRILLING FLUIDS
(Issued together with the Circular
No. 22/2015/TT-BTNMT of the Minister of Natural Resources and Environment
dated May 28, 2015)
(Name of applicant)
--------
THE SOCIALIST REPUBLIC OF VIETNAM
Independence - Freedom - Happiness
---------------
No.:
Re. Applying for non-aquerous drilling
fluids
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Dear Vietnam Environment Administration,
1. General information:
Name of applicant:
ID card/Passport number
(applicable to individual):
Office address:
Telephone:
Fax:
Scope of operations:
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2. Brief description of project/ proposed
activities using non-aquerous drilling fluids:
3. Information about non-aquerous drilling fluids to be
registered for use:
3.1. List of fluids to be registered
for use:
No.
Name of drilling fluids
Weight of base fluid adhering to
drilling cuttings
(estimated)
Treatment method
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3.2. Characteristics and features of
non-aquerous drilling fluids proposed for use
- Commercial
name:
- Chemical
formula name:
- Chemical
classification:
- SICC
code:
- Manufacturer:
- Chemical code:
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- Chemical
ingredients of non – aqueous drilling fluid
- Physical
properties of non – aqueous drilling fluid
4. Plan to use non – aqueous drilling fluid:
- Location:
- Proposed
time:
- Reasons
for using non – aqueous drilling fluids
- Result
of non-aquerous drilling fluid testing and analysis conducted in Vietnam;
- Proposed
use weight;
- Manners
of use and methods for supervision and minimization of environmental impacts
due to use of such fluid;
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5. List of attached documents:
- Copy
of manufacturer’s documentation containing information about non-aquerous
drilling fluids;
- Original
copy of the result of testing and analysis of non-aquerous drilling fluid
conducted in Vietnam (applicable to those used in Vietnam for the first time).
I hereby undertake that the
abovementioned information is true and accurate. I would like to
ask for your kind consideration and permission to use such fluid.
Name of applicant
(Signature and seal (if available))
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LOCATION,
TIME, FREQUENCY AND PARAMETERS OF ENVIRONMENTAL MONITORING FOR OFFSHORE OIL AND
GAS OPERATIONS
(Issued together with the
Circular No. 22/2015/TT-BTNMT of the Minister of Natural Resources and
Environment dated May 28, 2015)
1. Location,
time, frequency and parameters environmental monitoring:
Table 1: Frequency, sample type and
location (quantity) of environmental monitoring samples by specific operations
No.
Operation
Sample type
Frequency
Environmental monitoring locations
shown at Picture 1 and Table 2
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1
Exploration drilling using
water-based drilling fluid
Environmental monitoring is not
required
2
Exploration drilling using new
non-aquerous drilling fluid
Pre-exploration environmental
monitoring
Water sample
Once before the exploration
drilling
A3, B3, C3, D3
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Sediment sample
A3, B3, C3, D3
Post-exploration environmental
monitoring
Water sample
Once after the exploration drilling
A1, A2, Aref, C1, Cref,
Stipulated in paragraphs: 2.2.1;
2.2.2.
Sediment sample
A1, A2, A3, A4, A5, Aref, B1, B2, B3, B4, Bref, C1,
C2, C3, C4, Cref, D1, D2, D3, D4
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Mine development and extraction
drilling
Environmental monitoring before
mine development and extraction
Water sample
Once before mine development and
extraction drilling
A1, A2, Aref, C1, Cref,
Stipulated in paragraphs: 2.2.1;
2.2.2.
Sediment sample
A1, A2, A3, A4, A5, Aref, B1, B2, B3, B4, Bref, C1,
C2, C3, C4, Cref, D1, D2, D3, D4
Environmental monitoring after mine
development and extraction
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For the first time, once after 1
year of first commercial oil or gas flow extraction. Performing the following
environmental monitoring on a triennial basis
A1, A2, Aref, B1, Bref,
Stipulated in paragraphs: 2.2.1;
2.2.2.
Sediment sample
A1, A2, A3, A4, A5, Aref, B1, B2, B3, B4, Bref, C1,
C2, C3, C4, Cref, D1, D2, D3, D4
If the THC result of bottom
sediment sampling at one of A1, B1, C1, D1 positions exceeds 50 dry mg/kg,
the environmental monitoring should be additionally conducted at the position
E and F within a radius of 250m. As for mines with many sources of discharge
from relatively near facilities (a complex of facilities, if
the distance between 2 positions within 2 sampling networks is less than
500m, the sampling is only required at the network with greater possibility
of generating discharge volume.
Environmental monitoring of the
main oil or gas pipeline
Water sample
Once before installation
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Stipulated in paragraphs: 2.2.1;
2.2.2.
Sediment sample
4
Oil and gas facility demolition
Post-demolition environmental
monitoring
Water sample
Once before demolition and once
after completion of demolition
A1, A2, Aref, B1, Bref,
Stipulated in paragraphs: 2.2.1;
2.2.2.
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A1, A2, A3, A4, A5, Aref, B1, B2, B3, B4, Bref, C1,
C2, C3, C4, Cref, D1, D2, D3, D4
Picture 1. Diagram of network of
sampling points for the environmental monitoring
Table
2. Network of sediment and seawater sampling
(00
means the main current flowing from the radial symmetry center)
Position
Distance
from the center
(m)
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900
1800
2700
450
3150
Note
1
250
A1
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C1
D1
E1
F1
2
500
A2
B2
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D2
3
1,000
A3
B3
C3
...
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4
2,000
A4
B4
C4
D4
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5
4,000
A5
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6
Not less
than 10,000
Aref
Bref
Cref
(Or Dref)
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2. Environmental monitoring parameters
2.1. Bottom
sediment monitoring
2.1.1.
Characteristics of bottom sediments: Description of the uppermost layer of
bottom sediment, living animals, color and odor (if any).
2.1.2.
Total organic matter (TOM)
2.1.3.
Particle density, temperature, humidity, pH, Eh or ORP
- Total
hydrocarbons (THC)
- Content
of 16 Polycyclic Aromatic Hydrocarbons (at Table 3) and its C1 - C3 alkyl
homologs (NPD) are alanyzed at all points inside the circle of 250 m, one point
inside the circle of 1,000m, reference points and points where THC content is
greater than 50 dry mg/kg.
- Analysis
of metals such as As, Ba, Cd, Cr, Cu, Pb, Zn and Hg.
- A
number of species on a sampling area of 0.5 m2 (at each sampling
point);
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- Comprehensive
list of species; or lowest possible taxonomy (genus, order, family, etc), in
case it is impossible to define species in the nomenclature;
- List
of dominant species at each sampling point;
- Diversity
shown by biodiversity index (Shannon Wiener index) - log2 – based
coefficient;
- Pielou’s
evenness index (J);
- Hulbert
index, when a number of individuals are greater than 100.
2.2.1. Parameters defined at the monitoring position
Temperature,
pH, dissolved oxygen content and salinity.
Total
organic carbons (TOC), total hydrocarbons (THC), total suspended solids (TSS),
Zn, Hg, Cd, total Cr, Cu, As, Pb and Ba.
Table 3.
List of 16 Polycyclic Aromatic Hydrocarbons (PAH)
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Name
of compounds
1
Acenaphthene
2
Acenaphthylene
3
Anthracene
4
Benzo (a) anthracene
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Benzo (a) pyrene
6
Benzo (b) fluoranthene
7
Benzo (ghi) perylene
8
Benzo (k) fluoranthene
9
Chrysene
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Dibenzo (a,h) anthracene
11
Fluoranthene
12
Fluorene
13
Indeno (1,2,3-cd) pyrene
14
Naphthalene
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Phenanthrene
16
Pyrene
Benthic
diversity coefficient = 1 – 5
(Based
on Shannon Weiner’s biodiversity index)
Coef = 0 – 0.99
1
Coef = 1 – 1.99
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Coef = 2 – 2.99
3
Coef = 3 – 3.99
4
Coef >4
5