Petroleum Development Oman L.L.C.
UNCLASSIFIED
June 2001
DOC ID : SP-1225
- Drilling Specification Environmental Management
User Note:
The requirements of this document are mandatory. Non-compliance
shall only be authorised by TWM through STEP-OUT approval.
A controlled copy of the current version of this document is on PDO's
EDMS. Before making reference to this document, it is the user's
responsibility to ensure that any hard copy, or electronic copy, is current.
For assistance, contact the Document Custodian.
Users are encouraged to participate in the ongoing improvement of this
document by providing constructive feedback.
Keywords:
atmosphere, CFCs, effluent, emissions, energy, environment, fauna, flora, halons, land,
materials, noise, resources, sewage, vibration, waste, water consumption.
This document is the property of Petroleum Development Oman, LLC. Neither the whole nor any
part of this document may be disclosed to others or reproduced, stored in a retrieval system, or
transmitted in any form by any means (electronic, mechanical, reprographic recording or otherwise)
without prior written consent of the owner.
Drilling Specification – Environmental Management
Version 1.0
Document Authorisation
Document Authority
Document Custodian
Document Author
Nick West
TBA
Julian Barlow
Ref. Ind: TWM
Ref. Ind: TWE/52
Ref. Ind: TWM/11
Date: 06/06/01
Date: 06/06/01
Date: 06/06/01
The following is a brief summary of the four most recent revisions to this document. Details of all
revisions prior to these are held on file by the Document Custodian.
Version No.
Date
Version 1.0
June 2001
Author
Scope / Remarks
Julian Barlow
TWM/11
Steve Williams
TWB/Y
SP-1225
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Drilling Specification – Environmental Management
Version 1.0
Contents
1.
Introduction .......................................................................................................... 1
1.1 Purpose............................................................................................................. 1
2. Scope .................................................................................................................... 2
2.1 Definition ......................................................................................................... 2
2.2 Deliverables ..................................................................................................... 2
2.2.1 Records ........................................................................................................ 2
2.2.2 Reports ......................................................................................................... 2
2.3 Responsibilities ................................................................................................ 3
2.4 Emissions to Atmosphere................................................................................. 3
2.4.1 CFCs ............................................................................................................ 3
2.4.2 Halons .......................................................................................................... 3
2.4.3 Exhausts ....................................................................................................... 4
2.4.4 Flaring & Venting ....................................................................................... 4
2.5 Aqueous Effluents ............................................................................................ 4
2.5.1 Production Water.......................................................................................... 4
2.5.2 Sewage Effluent ........................................................................................... 4
2.5.3 Drainage Water ............................................................................................ 5
2.6 Accidental Releases to Land and Water ........................................................... 5
2.7 Use of Energy, Materials and Resources ......................................................... 5
2.7.1 Land Take..................................................................................................... 5
2.7.2 Water Consumption ..................................................................................... 6
2.7.3 Materials ...................................................................................................... 6
2.8 Waste Management .......................................................................................... 6
2.8.1 Waste Segregation ........................................................................................ 6
2.8.2 Waste Disposal ............................................................................................. 7
2.8.3 Discharge to the Waste pits .......................................................................... 7
2.9 Land Management ........................................................................................... 8
2.9.1 Well Handover ............................................................................................. 8
2.10 Performance Monitoring .............................................................................. 8
2.11 Review and Improvement ............................................................................ 8
2.12 Reporting Format ......................................................................................... 8
APPENDICES
Appendix 1: Well Engineering Monthly and End of Well Environmental Report
Appendix 2 TWM Waste Segregation Chart
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Drilling Specification – Environmental Management
1.
Introduction
1.1
Purpose
Version 1.0
PDO’s HSE Policy (PL-38) commits the Company to comply with Omani law, to protect the
environment and to prevent pollution.
PDO’s HSE Policy is supported by a suite of Corporate Environmental Specifications that
define the minimum environmental requirements. Well Engineering is required to comply
with PDO’s Environmental Specifications. This document identifies the environmental
requirements for Well Engineering in addition to those identified in the Corporate
Environmental Specification to allow it to manage aspects of the business which have the
potential to either be a hazard to human health or to harm the environment.
SP-1225
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Drilling Specification – Environmental Management
2.
Version 1.0
Scope
This Specification applies to all Well Engineering activities carried out by both PDO and its
Contractors (i.e. drilling, workover, fraccing, well testing, workshops and associated camps).
This Specification sets out the requirements for environmental management within Well
Engineering Operations that are not adequately addressed in the Corporate Environmental
Specifications.
2.1
Definition
This Specification addresses the environmental risks arising from Well Engineering
activities.
2.2
Deliverables
2.2.1
Records
Records shall be maintained to document the implementation of this Specification. These
include:






2.2.2
Monthly Environmental Report
End of Well Environmental Report
Environmental Incident report (Well Engineering HSE&S 24-hour Incident
Notification Form)
Location Survey Report
Well Location Custodianship Transfer Form
Waste Consignment Note
Reports
PDO staff

Well Engineering environmental performance shall be reported to CSM/2 on a monthly
basis
PDO staff and Contractors:





SP-1225
Environmental performance shall be reported monthly (by 10 th of the month) to
TWM/11 using the Monthly Environmental Report (ref Appendix 1)
Rigs, Well Test Units, Frac Units, Hoists shall provide details of chemicals used and
waste generated at each well in the End of Well Environmental Report (ref Appendix 1)
Any non-compliances with this Specification shall be notified, investigated and
reported per procedure ref PR 1444 “Well Engineering Management”.
Environmental incidents shall be reported in accordance with HSE/97/01“Accident
investigation and follow up”.
Sightings of the Arabian Oryx shall be reported to the White Oryx Project Field
manager of the MRME via CSM/2.
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Drilling Specification – Environmental Management
2.3
Version 1.0
Responsibilities
The Senior Well Engineer is responsible for ensuring that well designs and wellsite activities
comply with the requirements of this Specification. As Contract Holder for drilling rigs, the
Senior Well Engineer is also responsible for communicating this Specification to Contractors,
and for ensuring that the requirements of this Specification are adhered to within the scope of
their contracts. In the event that circumstances prevent compliance with this Specification,
the Senior Well Engineer shall seek step-out approval
The Company Site Representative (Drilling, Well Test, Frac and Hoist Supervisor) is
responsible for ensuring that activities comply with the requirements of this Specification. In
the event that circumstances prevent compliance with this Specification, the Drilling
Supervisor shall seek step-out approval
Contractors are responsible for ensuring that activities undertaken within the scope of their
contracts are managed in accordance with the requirements of this Specification.
2.4
Emissions to Atmosphere
Well Engineering operations have the potential to generate the following atmospheric
emissions:







Venting
Flaring
Exhausts
Fugitive Emissions
Halons
CFCs
Odours
The requirements for managing emissions to atmosphere are identified in the Corporate
Environmental Specification, SP 1005 “Emissions to Atmosphere”. In addition the following
requirements shall apply to Well Engineering activities.
2.4.1
CFCs
CFCs contribute toward global warming and depletion of the ozone layer and as a
consequence CFCs and HCFCs shall be phase out and the use of HFCs minimised within
PDO operations.
Within Well Engineering emissions to atmosphere are relatively high as the majority of the
losses are caused by the leakage from damaged equipment during moves. Well Engineering
Contractors shall actively pursue the replacement of equipment with refrigerants of a lower
Ozone Depleting Potential (ODP) and Global Warming Potential (GWP).
Where the Well Engineering Contractor maintains or repairs equipment containing CFCs,
CFC recovery and recycling equipment shall be used. Where the maintenance and repair
services are conducted by a 3rd party, the Well Engineering Contractor shall ensure that
recovery / recycling equipment is being used.
Reports on CFC inventory, emissions to atmosphere, CFCs recovered and reused shall be
provided on a monthly basis as per the reporting requirements (Section 2.2.2).
2.4.2
Halons
Halons shall not be used within Well Engineering operations.
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Drilling Specification – Environmental Management
2.4.3
Version 1.0
Exhausts
Many of the mobile units in the interior are powered by generators fuelled by crude oil. The
burning of crude oil has the potential to generate considerable smoke, however this shall be
controlled by the following:


2.4.4
Equipment (e.g. centrifuges) shall be fitted to ensure that the generators burn with
as clean a flame as practically possible using crude oil as a fuel.
smoky stacks shall be minimised by conducting optimum engine
utilisation/maintenance
Flaring & Venting
Flaring and venting of hydrocarbons contribute towards global warming and as such should
be minimised to levels as low as practically possible.
Flaring is conducted by the Well Testing Units as part of the testing process of wells. The
testing proposal is prepared by the PFAT and submitted to Well Engineering who prepare a
programme to carry out the testing in line with the proposal. The quantity flared is
influenced by the proposal produced by the PFATs and is therefore outside the direct control
of the Well Engineering Department. However Well Engineering has a responsibility to
minimise the quantity flared wherever practicable and therefore shall challenge the proposal
where required to ensure that flaring is minimised whilst providing the results required by the
PFATs.
At the location the Well Test Supervisor is responsible for ensuring that venting and flaring is
minimised during the testing operation.
2.5
Aqueous Effluents
The requirements for managing aqueous effluents are identified in the Corporate
Environmental Specification SP 1006 “Aqueous Effluents”. In addition the requirements for
managing the following aqueous effluent applicable to Well Engineering operations are
identified:



2.5.1
Production Water
Sewage Effluent
Drainage Water
Production Water
Production water is used for drill water on a number of rigs. Whilst this is an efficient use of
a “waste product” from the oil it contains concentrations of oil and therefore has the potential
to impact the environment if discharged directly to the water pit.
To minimise the impact an oil water separator system shall be used to separate the oil prior to
discharging to the water pit. In the event that oil is discharged to the environment it should
be removed and disposed as per the requirements of SP-1009 “Waste Management“.
2.5.2
Sewage Effluent
The remote nature of the Well Engineering operations in the interior dictates that sewage
effluent cannot be discharged directly to the sewage infrastructure available within the PDO
camps. In the past untreated sewage effluent was discharged directly to open sewage
lagoons, however this practice is no longer acceptable and shall be phased out by November
2001.
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Drilling Specification – Environmental Management
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In order to effectively mange sewage effluent and minimise the impact on the environment
the following requirement shall be met:
Camp locations should, wherever possible, be located such that the sewage effluent
discharges can be connected to permanent sewage treatment facilities.
The camp sites supporting units operating in Central Oman (Burhaan, Barik and Qarn Alam)
shall, if practicable, be sited within the former SBG (“1000 man”) camp.
 Camp locations shall be fitted with a pre-cast concrete septic tank and soakaway for
sewage effluent (where ground conditions are suitable).
 Well sites shall install a septic/soakway system (typically a 30” conductor, or
similar, buried behind the offices and accommodation).
 Where ground permeability conditions do not permit the installation of a soak-away
pit, holding tanks shall be installed. The effluent from the holding tank will be
transported to an approved sewage treatment plant (STP).
The Senior Well Engineer is responsible for ensuring that adequate sewage treatment
facilities are in place prior to moving on location.
2.5.3
Drainage Water
Drainage water from the well sites shall be directed towards the waste pits (either directly to
the waste pit or to the cellar where it is pumped to the waste pit).
Drainage water from permanently installed washing facilities (e.g. vehicle wash bays) shall
be directed via an oil water interceptor prior to discharge to the sewage system.
2.6
Accidental Releases to Land and Water
SP-1007 “Accidental Releases to Land and Water” addresses accidental releases to land and
water (hydrocarbons and chemicals) and focuses on minimising the effect on soil,
groundwater and the marine environment generated by PDO activities, products and services.
Environmental incidents that result in leaks or spills on land and water shall be managed in
accordance with:

2.7
PR 1287 “Contingency Plans, Vol 2, Well Engineering Operations”
Use of Energy, Materials and Resources
SP 1008 “Use of Energy Materials and Resources” addresses the use of:
Energy - fuel and electricity used for “work related” activities
Materials (chemicals and its associated packing materials).
Resources (land take and freshwater consumption).
In addition, the following requirements shall apply specifically to drilling activities:
2.7.1
Land Take
The land take of Well Engineering operations is managed by minimising the size of the well
location. In addition to this the following shall be shall be undertaken:
equipment shall be stored on the rig location, wherever practicable
land take and water use shall be minimised by using a combi waste / water pit
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Drilling Specification – Environmental Management
2.7.2
Version 1.0
Water Consumption
Well Engineering operations consume a considerable amount of water in undertaking its
activities and as such shall follow water conservation practices?.
Water quality Hierarchy
In order to make effective use of water resources water shall be used, wherever practicable
in the following of preference:
1
2
3
4
Production water
Saline WSW water
Water from RO facility
Fresh WSW water
Water resources from fresh water aquifers that supply local communities shall not be
exploited.
Management of Water Pits
At the well site, water conservation practices shall be followed to minimise unnecessary
wastage of water resources.
However water conservation practices shall not jeopardise the water reserve required to
address potential well control problems.
2.7.3
Materials
The Well site Well Engineer or ADSV is responsible for chemical management at the rig site.
Efficient use shall be made of chemicals and realistic quantities shall be requested when
placing orders in order to minimise wastage. In addition the following shall be undertaken:
manage chemical stock on the First in First Out (FIFO) principle
separate hazardous and non hazardous chemical
protect Big Bags against UV light by covering with tarpaulin
request re-bagging if packaging is damaged prior to backloading / use
include copy of TREM or SHOCK card with backload manifest
unused chemicals shall be re-palletised and returned to the Supply Department.
2.8
Waste Management
SP 1009 “Waste Management” defines categories of waste and acceptable means of disposal.
In addition, the following requirements shall apply specifically to Well Engineering
activities.
2.8.1
Waste Segregation
Waste shall be segregated as identified in the TWM Waste Segregation Chart (Appendix 2).
To effectively manage the different waste streams and ensure that the waste is properly
controlled the following is required:
Interior Camps
Domestic Kitchen Waste Skip
Non-Hazardous Waste Skip
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Drilling Specification – Environmental Management
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Interior locations
Non-Hazardous Waste Skip
Hazardous Waste Skip
Scrap Metal Skip
Waste Oil Tank
Recyclable Goods
Adequate skips are required to be available on site to ensure that the wastes are properly
managed and stored at the location. The exact waste skips required is dependant upon the
operation being carried out and the nature of the wastes generated (e.g. at the rig site all of
the skips identified above shall be available at the location).
The waste containers shall be covered in order to keeps camels away.
Problems encountered with the waste management contractors should be referred to the CSR,
the Area Services Supervisor (OxO/16).
2.8.1.1 Caustic Drums
Caustic Drums shall be emptied completely and washed out with water. The drum shall then
be either punctured with holes in the base or flattened and then placed in the scrap metal skip.
2.8.1.2 Casing and Tubing
The Wellsite Well Engineer shall ensure that:


2.8.2
Protectors are re-installed on unused casing and tubing.
Steel pallets and protectors of used tubing are stacked at the side of the location for
collection by the Logistics Department. Steel pallets and protectors of used tubing
shall not be placed in the scrap metal bins.
Waste Disposal
All wastes generated shall be removed from the location and be accompanied by a Waste
Consignment Note. No waste shall be burnt or buried.
2.8.3
Discharge to the Waste pits
The waste pits at the drilling site shall only be used for disposing:
water based drilling mud and cuttings with Total Petroleum Hydrocarbons, TPH < 10,000
mg/kg (i.e. only discharges with less then 10% hydrocarbon content by weight are allowed).
brines brought up from ‘downhole’.
and neutralised acids (ref SP - 1222 “Acid Washing”)
Zinc bromide shall not be discharged to the drilling waste pit but must be disposed as a
chemical waste. Where calcium bromide is discharged to the waste pit precautions shall be
taken to prevent animal and bird access.
2.8.3.1 Oil Based Mud (OBM)
Oil Based Mud (OBM) shall not be discharged to the waste pit. On rigs where OBM is used
special measures shall be put in place in order to ensure that cuttings generated are not
discharged to the waste pit.
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Drilling Specification – Environmental Management
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2.8.3.2 Chemical Waste
Waste or surplus chemicals shall not be discharged to the waste pit.
Lab chemicals from either mud/cement testing or mud logging operations shall not be sent to
the waste pit or septic tank.
2.9
Land Management
SP 1012 “Land Management” addresses the selection and preparation of mobile campsites
and well locations as well as other assets/infrastructure. It also addresses the surface
requirements of well locations for transfer of custodianship, and for abandonment and
restoration.
The Well Engineering End of Well / Monthly Environmental Waste Report (ref Appendix 1)
shall be completed at the end of each well and attached to the Well Location Custodianship
Transfer Form.
2.9.1
Well Handover
The procedure for managing the transfer of the well location is detailed in PR-1444 Well
Engineering Management Procedure,s4.7.4.3.
In addition the following minimum
requirements shall be adhered to prior to moving off the location




2.10
No rubbish on rig/camp locations
No oil floating on waste/water pit
Back fill rig site septic pit (if present) when moving off
Cellar safe: grating installed, valve handles/gauges installed
Performance Monitoring
Compliance with this Specification shall be monitored through workplace supervision, and
periodic site inspection.
Environmental performance shall be monitored by analysis of the information provided in
the required (see Section 2.14).
2.11
Review and Improvement
Any user of this document who wishes to provide constructive feedback, or who encounters
a mistake or confusing entry is requested to immediately notify the Document Custodian
using the form provided in PR 1444 “Well Engineering Management”.
This document shall be reviewed as necessary by the Document Custodian, but no less
frequently than every four years. Triggers for full or partial review of this Specification are
listed in PR 1444 “Well Engineering Management”.
2.12
Reporting Format
PDO Staff: Environmental performance shall be reported to TWM/11 monthly using the
TWM End of Well/Monthly Drilling/Well Test Waste Report (ref Appendix 1).
Contractors: There are no routine reporting requirements against this Specification.
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Drilling Specification – Environmental Management
Appendix 1:
Version 1.0
Environmental Report Form
..\..\FORMS\Env Report - Monthly & End Well version 6.xls
MONTHLY ENVIRONMENTAL REPORT
From:
Send To:
Copy:
TWM/111
TWM/11
(SWE),(WE), (Drilling Contractor Base)
TWM MONTHLY WASTE REPORT REPORT FOR:
(RIG/WTU/FRAC/CTU/INTERIOR BASES)
The following information need to be send to TWM/11,TWM/111 both at the end of a well (BBB) and every month.(AAA) It is
mandatory to attach the completed end of well waste report (BBB) to the Well Loacation Custodianship Transfer form
(issue:01/00) when it is sent to the customer. Monthly reporting only (AAA) is required for interior contractor locations. The
information forms the basis for Environmental monitoring, annual reporting to stake holders and satisfies the ISO-14001 standard.
GENERAL HEADER DATA FOR AAA and BBB
Rig/Well Test
Unit/Frac/Interior Base
Report Date
Well: (Name/Nr)
Report Type:
(End of Well/Monthly)
Type: (Multilatrl..leg /
Horizontal only / Vert)
New or work over
Date Started
Asset Area
Date Released
Meters drilled (month)
Soil Protection Score
Meters drilled (end of well)
Monthly
DO NOT CHANGE UNITS!
AAA) MONTHLY DATA
1
ENERGY CONSUMPTION
1.1
Crude Oil Burned (Unit & Camp)
1.2
Diesel Consumed (Unit )
2
Electricity Consumed from Asset (Camp )
3
3.1
3.2
3.3
3.4
3.5
4
4.1
4.2
4.3
4.4
4.5
4.6
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
6
6.1
6.2
6.3
6.4
Volume
Unit
m3
m3
kWh
NON HAZARDOUS DOMESTIC WASTE
Total domestic waste generated (rig and camp site):
Domestic waste disposed to land-fill at:
Domestic waste buried at camp site:
Coordinates where the waste is buried at camp site - (Northing, Easting):
Domestic waste taken by Third Party?
MT
MT
MT
MT
NON HAZARDOUS INDUSTRIAL WASTE
General Industrial waste
Scrap steel waste
Returned wooden pallets for re-use
Meters of hole drilled with WBM this month
Volume of cuttings in waste pit this month
Volume of WBM in waste pit this month
MT
MT
pce
m
m3
3
m
HAZARDOUS WASTE:
Lube oil/greases disposed of to:
Hazardous Waste skip contents
Contaminated oily sand (spills) disposed to:
Waste tyres disposed to:
Batteries disposed to:
Chemical waste (liquid)disposed to:
Chemical waste (solid)disposed to:
Meters of hole drilled with OBM this month
OBM cuttings disposed of to:
m3
MT
MT
pce
pce
3
m
MT
m
3
m
OTHER WASTE
Clinical waste disposed to (clinic):
NORM classed materials disposed to:
Other waste
Other waste
kg
MT
MT
3
m
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disposed to
disposed to
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Drilling Specification – Environmental Management
7
7.1
7.2
7.3
8
8.1
8.2
8.3
8.3
8.4
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
10
10.1
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.10
10.11
10.12
10.13
10.14
10.15
10.16
10.17
10.18
10.19
10.20
10.21
10.22
10.23
10.24
10.25
10.26
10.27
10.28
10.29
POTABLE WATER CONSUMPTION
Campsite consumption
Rig site consumption
Monthly consumption per man/day (Rig+Camp combined)
Version 1.0
m3
3
m
litre
SEWAGE DATA
Rig site sewage disposed via pre-installed septic soak away
Campsite sewage disposal via pre-installed septic soak away
Campsite sewage discharged in Sewage Treatment Plant
Campsite sewage disposed with vacuum truck from holding tank
Sewage waste removed from camp site to:
Yes/No
Yes/No
Yes/No
Yes/No
3
m
WELL TEST WASTE (for well test units/frac only)
Gas flared:
Oil disposed at (Oil/Condensate)
Oil flared:
Produced water disposed at:
Produced water disposed in waste pit
Other waste disposed in waste pit:
Specify (above)other waste:
Estimate of oil contamination to flare pits:
scm
m3
3
m
m3
3
m
MT
m3
MONTHLY CFC INVENTORY
Installed in equipment:
R-11
In stock on camp/rig site for repairs:
R-11
Leaked to atmosphere this month:
R-11
Recovered/recycled:
R-11
Installed in equipment:
R-12
In stock on camp/rig site for repairs:
R-12
Leaked to atmosphere this month:
R-12
Recovered/recycled:
R-12
Installed in equipment:
R-22
In stock on camp/rig site for repairs:
R-22
Leaked to atmosphere this month:
R-22
Recovered/recycled:
R-22
Installed in equipment:
R-502
In stock on camp/rig site for repairs:
R-502
Leaked to atmosphere this month:
R-502
Recovered/recycled:
R-502
Installed in equipment:
R-134a
In stock on camp/rig site for repairs:
R-134a
Leaked to atmosphere this month:
R-134a
Recovered/recycled:
R-134a
Installed in equipment:
R-404a
In stock on camp/rig site for repairs:
R-404a
Leaked to atmosphere this month:
R-404a
Recovered/recycled:
R-404a
Installed in equipment:
R-407
In stock on camp/rig site for repairs:
R-407
Leaked to atmosphere this month:
R-407
Recovered/recycled:
R-407
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
Halon Installed in permanent fire fighting system
PRINT NAMES CLEARLY:
Prepared by:
Position:
Signature:
Approved By:
(WASTE CUSTODIAN)
Checked By:
Position:
Signature:
TWM field retention times:
Monthly reports = 1 year
End of Well = Contract duration
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END OF WELL WASTE STATEMENT FOR HANDOVER TO THE ASSET TEAM
From:
Send To:
Copy:
TWM/111
TWM/11
(SWE),(WE), (Drilling Contractor Base)
TWM END OF WELL WASTE REPORT REPORT FOR:
(RIG/WTU/FRAC/CTU/INTERIOR BASES)
The following information need to be send to TWM/11,TWM/111 both at the end of a well (BBB) and every month.(AAA) It is mandatory to
attach the completed end of well waste report (BBB) to the Well Loacation Custodianship Transfer form (issue:01/00) when it is sent to the
customer. Monthly reporting only (AAA) is required for interior contractor locations. The information forms the basis for Environmental
monitoring, annual reporting to stake holders and satisfies the ISO-14001 standard.
GENERAL HEADER DATA FOR AAA and BBB
Rig/Well Test
Unit/Frac/Interior Base
Report Date
Well: (Name/Nr)
Report Type:
(End of Well/Monthly)
Type: (Multilatrl..leg /
Horizontal only / Vert)
New or work over
Date Started
Asset Area
Date Released
Meters drilled (month)
Soil Protection Score
Meters drilled (end of well)
End of Well
DO NOT CHANGE UNITS!
BBB) END OF WELL DATA
DRILLING FLUIDS (FROM SECTION MUD REPORT,CORRECT FOR LOSSES)
11
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
11.11
11.12
11.13
11.14
11.15
11.16
11.17
11.18
11.19
11.20
11.21
11.22
11.23
11.24
11.25
11.26
11.27
11.28
11.29
11.30
11.31
11.32
Total WBM drilled cuttings discharged to Waste Pit
Total Water based mud discharged to Waste Pit
Composition of Water based Mud system discharged in waste pit
Mud chemical name:
Mud chemical name:
Mud chemical name:
Mud chemical name:
Mud chemical name:
Mud chemical name:
Mud chemical name:
Mud chemical name:
Liquid additive:
Liquid additive:
Liquid additive:
Fraction of Crude %
Av. Retort % Crude on cuttings:
%:
Cement slurry discharged
Class:
Mix water discharged:
Cement additive name:
Cement additive name:
Cement additive name:
Cement additive name:
Cement additive name:
Cement additive name:
Acid (spent) discharged:
Type:
% Strength:
Bleach discharged:
Type:
Conc:
Brine discharged
Type:
Estimate of water used for cleaning discharged to waste pit:
Total volume of fluid in the WASTE pit (at time of rig release):
Estimate of Drill water used during this program:
Estimate of Dehydration water used during this program:
Estimate of Drill water in the WATER pit ( at time of rig release ):
pH of liquid left in Waste pit (at time of rig release)
SP-1225
Page 12
SHOC REF.
Quantity
m3
3
m
MT
MT
MT
MT
MT
MT
MT
MT
3
m
3
m
3
m
3
m
m3
MT
3
m
MT
MT
m3
3
m
3
m
3
m
m3
m3
MT
m3
m3
m3
m3
m3
June 2001
Drilling Specification – Environmental Management
12
12.1
12.2
12.3
12.4
Version 1.0
Quantity
DRILLING WASTE/CNSUMPTION OIL BASED MUD/ UNDERBALANCED
Oil based mud recycled:
Drilled cuttings disposed to:
OBM or UB:
Type of oil based mud:
Oil based mud contamination to waste pit:
m3
m3
m
3
DO NOT CHANGE UNITS!
13
13.1
13.2
13.3
13.4
13.5
14
14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
14.10
14.11
14.12
SHOC REF.
OTHER WASTE
Dry mud chemicals (rejected/dumped etc) discharged to waste pit:
Quantity
MT
MT
MT
MT
m3
Dry cement discharged to waste pit:
Dry cement chemicals discharged to waste pit:
Other chemicals discharged to waste pit - specify type
Other chemicals discharged to waste pit - specify type
OTHER ENVIRONMENTAL DATA
Sewage discharged on rig site: (base on pot. water consumed)
Sewage discharged on campsite: (base on pot. water consumed)
Has (open) sewage pit been backfilled?
Is the location constructed with a combi Water/Waste pit:
Is the Waste pit fenced:
Is the Waste pit lined:
Has floating oil been skimmed off the waste pit surface.
Are the gratings on the cellar in place?
Cellar empty?
Location cleared of rubbish? (at time of rig release)
Other relevant info:
Next location after Rig move
m3
m3
Yes/No/na
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
PRINT NAMES CLEARLY:
Prepared by:
Position:
Signature:
Approved By:
(WASTE CUSTODIAN)
Checked By:
Position:
Signature:
TWM field retention times:
Monthly reports = 1 year
End of Well = Contract duration
SP-1225
Page 13
June 2001
Drilling Specification – Environmental Management
Version 1.0
Appendix 2 TWM Waste Segregation Chart
TWM WASTE SEGREGATION ON WELL SITE
twm/11 issue 11/99
SP-1225
Page 14
June 2001
2) WASTE REPORT (MONTHLY / END OF WELL)
1)SIGNED MODIFIED(Nov 99) WASTE CONSIGNMENT NOTE
Tires
Oily/greasy gloves
Old Air Conditioners Parts (freon recoverred)
Batteries
Paint Tins & Paint Brushes
( ORANGE )
Spray cans ( Aerosol Cans )
Solvent Bottles & Tins
Old Oil Filters
Hydraulic Hoses
Oily Rags
Grit blasting waste/residues
Bags of Hazardous Mud Chemicals
Mud Lab Chemical Waste
Pipe Dope Buckets & Brushes
SCRAP STEEL
Welder's Scrap Metal
WASTE
Clean pierced Caustic drums
Empty 42 gal. Oil drums (punch holes!)
Wire Slings ( Drilling Line )
( BLUE )
Metal Binders ( from WWS )
Shaker Screens
Tin Cans
Electric Cable (e-line)
Any other metal articles
WASTE OIL TANK Waste Lubricants
Paint Thinners
( GREY )
Dirty/used motoroil
Solvents
DOMESTIC
Yellow Bags
(Rig owned = black) - Paper
Waste Contr's = yellow - Aluminium Cans
Black Bags
(AT CAMP)
- Food Scraps
- kitchen Waste
CLINICAL WASTE
(PLASTIC CLINIC BAG) Medical Waste
(SHARP CONTAINER) Sharps
RECYCLE GOODS
Casing/Tubing protectors
(Mate pin/box then backload to supply)
Wooden pallets
Scrap Bits (Leave intact send to supply)
Paper/cardboard (Yellow bags)
Used print cartriges (Internal mail to HES/2)
ON LOCATION TO BE ENFORCED BY RIG MANAGERS VERIFIED BY DSV & WSWE
HAZARDOUS
WASTE
RESPONSIBILTY CONTROLS
ALL PERSONNEL
ARABIC
ACHIEVABLE BY
Skips to be partitioned as per infonote 334 to aid segregation
ENGLISH
COLOUR CODE SKIP
WASTE STREAM
NON HAZARDOUS All plastics e.g. bags, drums, bottles
(General Rubbish) Packaging Material
Non metal rope
Used Gloves
Empty non-hazardous chemical sacks
(YELLOW )
(e.g. bags of salt, bentonite, CaCo3 etc)
Scrap wood
Rubber ( No Tires )
Fan Belts ( Rubber Belts )
Glass
PVC ( Plastic Pipe )
Flourescent tubes and light bulbs
Dry cell batteries(non-recyclable)