Marginal oil fields present economic challenges but can be profitably developed using unconventional techniques. The document outlines various unconventional techniques like horizontal drilling, hydraulic fracturing, tiebacks, and cable deployed ESPs that have been successfully used in case studies to reduce costs and increase production from marginal fields, making them economically viable. It also discusses the data and time constraints faced in developing marginal fields and how various conventional techniques can help optimize costs.
Industry studies show that mature fields currently account for over 70% of the world’s oil and gas production. Increasing production rates and ultimate recovery in these fields in order to maintain profitable operations, without increasing costs, is a common challenge.
This lecture addresses techniques to extract maximum value from historical production data using quick workflows based on common sense. Extensive in-depth reservoir studies are obviously very valuable, but not all situations require these, particularly in the case of brown fields where the cost of the study may outweigh the benefits of the resulting recommendations.
This lecture presents workflows based on Continuous Improvement/LEAN methodology which are flexible enough to apply to any mature asset for short and long term planning. A well published, low permeability brown oil field was selected to retroactively demonstrate the workflows, as it had an evident workover campaign in late 2010 with subsequent production increase. Using data as of mid-2010, approximately 40 wells were identified as under-performing due to formation damage or water production problems, based on three days of analyses. The actual performance of the field three years later was then revealed along with the actual interventions performed. The selection of wells is compared to the selection suggested by the workflow, and the results of the interventions are shown. The field's projected recovery factor was increased by 5%, representing a gain of 1.4 million barrels of oil.
This 5 day training course is designed to give you a comprehensive account of methods and techniques used in modern well testing and analysis. Subsequently to outlining well test objectives and general methodologies applied, the course will provide real case studies and practice using modern software for Pressure Transient Analysis. These exercises will demonstrate clearly the limitations, assumptions and applicability of various techniques applied in the field.
PENNGLEN FIELD Development Plan (GULF of MEXICO)PaulOkafor6
A FDP designed with the goal to define the development scheme that allows the optimization of the hydrocarbon recovery at a minimal cost for project sanction
This was designed by MSc Students from the Institute of Petroleum Studies, UNIPORT/ IFP School, France
Integrated Oil Field Development Plan - FDP. Criteria, strategy and process f...Giuseppe Moricca
Integrated Oil Field Development Plan - FDP.
The integrated oil field development plan describes process, explores options, and targets, aimed at the optimal oil and gas field development in line with the oil company strategy.
The spine in the process is the specialist teams who navigate, manage and integrate the subsurface and surface complexities, uncertainties and opportunities into a single development plan, maximizing the overall field recovery and asset value.
Presentation defines well completion as a sub-discipline of drilling operations. It introduces the various components of the well completion process. It then describes and explains basic areas of the completion process including the bottom-hole completion process, the perforation process, the upper completion with packers, tubing component equipment and devices, tubing configurations, the horizontal completions and the Christmas tree(production head)
Industry studies show that mature fields currently account for over 70% of the world’s oil and gas production. Increasing production rates and ultimate recovery in these fields in order to maintain profitable operations, without increasing costs, is a common challenge.
This lecture addresses techniques to extract maximum value from historical production data using quick workflows based on common sense. Extensive in-depth reservoir studies are obviously very valuable, but not all situations require these, particularly in the case of brown fields where the cost of the study may outweigh the benefits of the resulting recommendations.
This lecture presents workflows based on Continuous Improvement/LEAN methodology which are flexible enough to apply to any mature asset for short and long term planning. A well published, low permeability brown oil field was selected to retroactively demonstrate the workflows, as it had an evident workover campaign in late 2010 with subsequent production increase. Using data as of mid-2010, approximately 40 wells were identified as under-performing due to formation damage or water production problems, based on three days of analyses. The actual performance of the field three years later was then revealed along with the actual interventions performed. The selection of wells is compared to the selection suggested by the workflow, and the results of the interventions are shown. The field's projected recovery factor was increased by 5%, representing a gain of 1.4 million barrels of oil.
This 5 day training course is designed to give you a comprehensive account of methods and techniques used in modern well testing and analysis. Subsequently to outlining well test objectives and general methodologies applied, the course will provide real case studies and practice using modern software for Pressure Transient Analysis. These exercises will demonstrate clearly the limitations, assumptions and applicability of various techniques applied in the field.
PENNGLEN FIELD Development Plan (GULF of MEXICO)PaulOkafor6
A FDP designed with the goal to define the development scheme that allows the optimization of the hydrocarbon recovery at a minimal cost for project sanction
This was designed by MSc Students from the Institute of Petroleum Studies, UNIPORT/ IFP School, France
Integrated Oil Field Development Plan - FDP. Criteria, strategy and process f...Giuseppe Moricca
Integrated Oil Field Development Plan - FDP.
The integrated oil field development plan describes process, explores options, and targets, aimed at the optimal oil and gas field development in line with the oil company strategy.
The spine in the process is the specialist teams who navigate, manage and integrate the subsurface and surface complexities, uncertainties and opportunities into a single development plan, maximizing the overall field recovery and asset value.
Presentation defines well completion as a sub-discipline of drilling operations. It introduces the various components of the well completion process. It then describes and explains basic areas of the completion process including the bottom-hole completion process, the perforation process, the upper completion with packers, tubing component equipment and devices, tubing configurations, the horizontal completions and the Christmas tree(production head)
Introduction to offshore oil and gas surface facilities, including drilling rig types, topside and substructures, jacket, compliant tower, jack up, gravity based structure, fpso, fso, semi submersible, tlp, spar, wellhead platform, processing platform, pipeline, and surface facilities selection
Reservoir engineers cannot capture full value from waterflood projects on their own. Cross-functional participation from earth sciences, production, drilling, completions, and facility engineering, and operational groups is required to get full value from waterfloods. Waterflood design and operational case histories of cross-functional collaboration are provided that have improved life cycle costs and increased recovery for onshore and offshore waterfloods. The role that water quality, surveillance, reservoir processing rates, and layered reservoir management has on waterflood oil recovery and life cycle costs will be clarified. Techniques to get better performance out of your waterflood will be shared.
Oil 101: Introduction to Oil and Gas - UpstreamEKT Interactive
Oil 101: Introduction to Oil and Gas - Upstream
What is Upstream? This Midstream content is derived from our Oil 101 Upstream ebook and can be found in our oil and gas learning community.
This Upstream module includes the following sections (use the links below for quick access):
-Introduction to Upstream
-Upstream Business Characteristics
-Oilfield Services
-Reserves – Formation and Importance
-Production – The First Step in Adding Value
-The Unconventional Future of Upstream
Upstream
What is Upstream? Most oil and gas companies’ business structures are segmented and organized according to business segment, assets, or function.
The upstream segment of the business is also known as the exploration and production (E&P) sector because it encompasses activities related to searching for, recovering and producing crude oil and natural gas.
The upstream segment is all about wells: where to locate them; how deep and how far to drill them; and how to design, construct, operate and manage them to deliver the greatest possible return on investment with the lightest, safest and smallest operational footprint.
Exploration
The exploration sector involves obtaining a lease and permission to drill from the owners of onshore or offshore acreage thought to contain oil or gas, and conducting necessary geological and geophysical (G&G) surveys required to explore for (and hopefully find) economic accumulations of oil or gas.
Drilling
There is always uncertainty in the geological and geophysical survey results. The only way to be sure that a prospect is favorable is to drill an exploratory well. Drilling is physically creating the “borehole” in the ground that will eventually become an oil or gas well. This work is done by rig contractors and service companies in the Oilfield Services business sector.
Production
The production sector of the upstream segment maximizes recovery of petroleum from subsurface reservoirs.
Well Control is very important in Petroleum Engineering and necessary for being able to avoid hazards and controlling them as much as possible. This presentation provides valuable notes, instructions, and information about Well Control.
Marginal offshore production platform feasibilityguest651e92c
Final presentation of a feasibility study performed this year (2009) covering many aspects of marginal platform design, fabrication, transport and installation.
Introduction to offshore oil and gas surface facilities, including drilling rig types, topside and substructures, jacket, compliant tower, jack up, gravity based structure, fpso, fso, semi submersible, tlp, spar, wellhead platform, processing platform, pipeline, and surface facilities selection
Reservoir engineers cannot capture full value from waterflood projects on their own. Cross-functional participation from earth sciences, production, drilling, completions, and facility engineering, and operational groups is required to get full value from waterfloods. Waterflood design and operational case histories of cross-functional collaboration are provided that have improved life cycle costs and increased recovery for onshore and offshore waterfloods. The role that water quality, surveillance, reservoir processing rates, and layered reservoir management has on waterflood oil recovery and life cycle costs will be clarified. Techniques to get better performance out of your waterflood will be shared.
Oil 101: Introduction to Oil and Gas - UpstreamEKT Interactive
Oil 101: Introduction to Oil and Gas - Upstream
What is Upstream? This Midstream content is derived from our Oil 101 Upstream ebook and can be found in our oil and gas learning community.
This Upstream module includes the following sections (use the links below for quick access):
-Introduction to Upstream
-Upstream Business Characteristics
-Oilfield Services
-Reserves – Formation and Importance
-Production – The First Step in Adding Value
-The Unconventional Future of Upstream
Upstream
What is Upstream? Most oil and gas companies’ business structures are segmented and organized according to business segment, assets, or function.
The upstream segment of the business is also known as the exploration and production (E&P) sector because it encompasses activities related to searching for, recovering and producing crude oil and natural gas.
The upstream segment is all about wells: where to locate them; how deep and how far to drill them; and how to design, construct, operate and manage them to deliver the greatest possible return on investment with the lightest, safest and smallest operational footprint.
Exploration
The exploration sector involves obtaining a lease and permission to drill from the owners of onshore or offshore acreage thought to contain oil or gas, and conducting necessary geological and geophysical (G&G) surveys required to explore for (and hopefully find) economic accumulations of oil or gas.
Drilling
There is always uncertainty in the geological and geophysical survey results. The only way to be sure that a prospect is favorable is to drill an exploratory well. Drilling is physically creating the “borehole” in the ground that will eventually become an oil or gas well. This work is done by rig contractors and service companies in the Oilfield Services business sector.
Production
The production sector of the upstream segment maximizes recovery of petroleum from subsurface reservoirs.
Well Control is very important in Petroleum Engineering and necessary for being able to avoid hazards and controlling them as much as possible. This presentation provides valuable notes, instructions, and information about Well Control.
Marginal offshore production platform feasibilityguest651e92c
Final presentation of a feasibility study performed this year (2009) covering many aspects of marginal platform design, fabrication, transport and installation.
PE929 Marginal Offshore Field DevelopmentpetroEDGE
Marginal offshore oilfield development requires more careful risk management than more economically robust field developments. As such, project management of marginal field development also requires an additional degree of scrutiny, particularly in regard to project drivers. Any adverse effects to these drivers, such as cost blowouts and schedule overruns will likely result in commercial failure. However, the most important project driver is related to reserves or specifically the oil recoverable by individual wells. Failure of reservoir well performance, for whatever reasons tends to have a devastating effect.
The course commences with the principles of project management, including project drivers and economic considerations, and definitions of marginal fields. Secondly, the three project elements are addressed: reservoirs, facilities and wells, paying particular attention to uncertainties, options, design and risks. Thirdly, the course covers management processes, including tollgating and post-implementation reviews, as well as cost estimating and control, and schedules. Finally, the course covers economic evaluation aspects; project risks and analysis; and examples of project failure.
Introduction to Project Economics in Oil and Gas Exploration and Production (Upstream) Industry, including basic project economics method and example of calculation.
Slide presentation of heavy lifting ships that are among 20 semi submersible vessels owned by the Dutch firm Dockwise of Breda, The Netherlands. Dockwise is an oil and gas service provider specializing in seagoing heavy transport shipping capable of carrying/cargoing up to 73,000 tons. The vessels are built by the Korean firm Hyundai Mipo Manufacturing.
Water Injection & Treatment for Tight Oil EOR
EOR choices for light Tight Oil
Potential damage to reservoir and well bore.
Water Specifications & Treatment
Case Studies:
1. Advanced Water Flooding
2. Frac injectors?
3. Low Salinity Water Flooding
Topics Include:
Filtration
Water Quality
Reservoir Pressure
The lifecycle of developed fields, onshore and offshore will go through different stages of production up to the decline into late field life. Effective reservoir engineering management will lead to prolonging the life of field if a cost effective processing surface facilities strategy is put in place. Factors that lead to the decline in oil production or increase in OPEX may include increased water production, solids handling and the need for relatively higher compression requirements for gas lift. In order to maintain productivity and profitability, an effective holistic engineering approach to optimizing the process surface facilities must be utilized. The challenges of Optimizing Mature Field Production are: 1. Reservoir understanding with potential definition of additional reserves 2. Complete re-appraisal of the operability issues in the production facilities 3. Develop confidence to invest to optimize the process handling capabilities and capacity 4. Low CAPEX simplification of the surface facilities infrastructure to meet challenges 5. An implementation plan that recognizes the ‘Brownfield’ complexities 6. Selection of suitable optimum technology, configuration and training 7. Optimum upgrade plan of the facilities with minimum production losses Successful operation of mature fields and their surface facilities requires successful change management to the new operating strategy. Using a holistic approach can maximize the full potential of mature processing facilities at a manageable CAPEX and OPEX.
Dr. Wally Georgie Dr. Wally Georgie has a B.Sc degree in Chemistry, M.Sc in Polymer Technology, M.Sc in Safety Engineering and PhD in Applied Chemistry with training courses in oil and gas process engineering, production, reservoir and corrosion engineering. He has worked for over 37 years in different areas of oil and gas production facilities, including corrosion control, flow assurance, fluid separation, separator design, gas handling and produced water. He started his career in oil and gas services sector in 1978 based in the UK and working globally with different production issues then joined Statoil as senior staff engineer and later as technical advisor in the Norwegian sector of the North Sea. Working as part of operation team on oil and gas production facilities key focus areas included optimization, operation trouble-shooting, de-bottlenecking, oil water separation, slug handling, process verification, and myriad other fluid and gas handling issues. He then started working in March 1999 as a consultant globally both offshore and onshore, conventional and unconventional in the area of separation trouble shooting, operation assurance, produced water management, gas handling problems, flow assurance, system integrities and production chemistry, with emphasis in dealing with mature facilities worldwide.
Presentation of TCTM and its truly revolutionary technlology: ETCT: Environment-friendly Thermochemical Treatment
The most modern, cost-effective, fully-automated and environment-friendly method of stimulation of crude oil, bitumen and shale oil extraction known in the world.
Brief Introduction into Oil & Gas Industry by Fidan AliyevaFidan Aliyeva
This document presents five stages of the oil field life cycle, their description and some disciplines involved as well as some general facts about the oil and gas.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
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A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
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Thesis Statement for students diagnonsed withADHD.ppt
Marginal oil fields
1. M A R G I N A L O I L F I E L D S
Profitable Oil At Low Reserves : How?
2. Agenda
Case Histories For Unconventional Techniques
Unconventional Techniques For Developing Marginal Fields
Conventional Techniques For Developing Marginal Fields
Conclusion
Introduction
Challenges in marginal oil fields
3. In 2008, Shell’s CEO, Jeroen van de Veer, announced that the era of
“easy-to-find” oil was coming to an end
1. Introduction
4. 1. Introduction: Terminology
Commercial Fields:
Noncommercial Fields:
Marginal Fields:
Can be developed normally with high or normal profit
Unprofitable and can’t be developed
With parameters set at their best, development can be
profitable at their worst economically disastrous
5. By definition a Marginal oil field is:
a field that is economically unattractive to develop and produce.
It could be a new discovery or an already producing field.
Economical Factors that contribute in making a field marginal:
High CAPEX and OPEX
Unattractive revenue dependent on RF and production rates
Technological constraints
Government regulations and policies
Oil price
1. Introduction- Cont’d
IT’S ALL ABOUT ECONOMICS
7. The two main enemies in developing marginal fields are :
the uncertainty of DATA and TIME
1. Data Acquisition Problem (Exploration Problems)
Uncertainty is not specific to Marginal ones
Exploration:
Heavy data acquisition programs is an impossible choice
One or two discovery wells , 3D seismic for a development decision
Appraisal drilling, long duration tests, are not applicable
2. Challenges in marginal oil fields
8. Number of wells required:
The economy can not bear MULTIPLYING the number of wells
They can be limited by these choices :
Intense use of horizontal wells
Multi-branched wells
Hydraulic fracturing
2. Challenges in marginal oil fields
9. 2. Time :
We have two opposite requirements:
Go fast to have a short production period
Low production for the reservoir not to be destroyed
So, production should be optimized where:
we must reduce the velocity to insure a good recovery and have as high
a rate as possible to insure profitability
2. Challenges in marginal oil fields- Cont’d
10. 3. Production operations life:
The uncertainty necessitates transferring costs from CAPEX TO OPEX by:
a. Using existing facilities on a contractual basis
b. Leasing as much as possible the required facilities and equipment
2. Challenges in marginal oil fields- Cont’d
12. Cost optimization methods in marginal fields to ensure profitability :
1. Geology and exploration
Re-correlation of the geologic column as more wells are drilled
Using 3D simulation programs and available data from the nearest fields to
make a good understanding of the geology of a marginal field
3. Conventional Techniques For Developing Marginal Fields
13. 2. Drilling
Use of PDC bits to ensure longer bit life and fewer bit runs
3. Completion and production
Ensure wellbore production optimization
Sub sea completion for offshore fields
3. Conventional Techniques For Developing Marginal Fields
14. 4. Stimulation
Hydraulic fracturing for low permeable formations
Acidizing
3. Conventional Techniques For Developing Marginal Fields
15. 5. Processing:
Connection to the existing pipeline
Use of excess processing capacity
Use of idle equipment and material
Using the in-plant test separator as a production separator
Surface facilities debottlenecking
Use of Floating Production Storage and Offloading (FPSO) tanker
Direct electrical heat in offshore
3. Conventional Techniques For Developing Marginal Fields
17. 4.1 Smart Solutions : Cable Deployed ESP
Use draw works unit instead of workover
rigs to handle the tubular required of
conventional ESP
Reduce workover (Operating) costs, by
retrieving an ESP without handling tubulars
18. 4.2 Smart Solutions : Dual ESP system
Used for marginal wells to improve the production and
to provide the power and reliability demanded in high-
risk, high-cost producing wells.
Provide an in-well, cost-effective backup system that
minimizes the downtime caused by ESP failures.
Features:
Access below the ESP
Flow bypass
Automatic switching between ESPs
Parallel OR Series ESP system option
19. 4.3 Smart Solutions : Extreme overbalance perforating
A new concept for wellbore cleaning operations
In EOP completions, tubing pressure is
increased before the guns are fired and then
released into the wellbore with gun explosion
Because wellbore pressure exceeds rock
yield strength, perforating initiates one or more
small fractures beyond the zone damaged by
invasion
This stimulation obviates the need for
cleaning the perforation tunnel
20. 4.4 Smart Solutions : Horizontal Drilling
Why this technology?
Increase sand face
Used for thin tight formations
Used to prevent severe coning
Can produce with optimum velocity
required for production in marginal
oil fields
21. 4.5 Smart Solutions : Multilateral technology:
Why this technology?
Many targets at different depth scan be
reached from a single well
Less casing , less drilling time
Increases production from a single well
22. Commonly a wellbore less than 6 in. Diameter
Simply reducing the hole and casing sizes for each hole
interval; Consequently well cost ( mainly drilling and
completion costs) fall.
Good candidate for developing marginal fields
4.6 Smart Solutions : Slimhole technology
23. 4.7 Gas lift Using Coiled Tubing
• CT can be used to feed the field with artificial lift gas and injector water.
• The main advantages of using coiled tubing are:
1. The cost of the pipeline is much less than the normal pipelines.
2. The required time to install the line was only a small fraction of the
time required to install a butt-welded pipeline.
24. 4.8 Smart solutions: vapor extraction(VAPEX)
Thermal method used for enhancing the heavy oil or bitumen
recovery
Twice as efficient as the older cyclic steam stimulation
25. 4.9 Tiebacks
Tieback (subsea)
is a connection between a new oil and
gas discovery and an existing
production facility, improving the
economics of marginal fields into
profitable assets.
It decrease the overall capital
expenditure
26. 4.10 Smart solution: Radial drilling
Steps: 1) Milling : milling head , fluid
2) Jetting : Fresh water or acid ,clay inhibitors
30. 4.10 Radial drilling &Hydraulic fracturing
Economical challenge
Are you SURE where your FRAC is going?
Advantages:
• Directing fracture by orienting laterals
• Provide a long conduit before your fracture meets resistance
• Unwanted zones
31. 4.10 Radial drilling & secondary recovery
Pressure maintenance: Laterals are designed to
enhance conventional methods of reservoir pressure
maintenance:
1) Directed Water Flood
2) Directed CO2 Flood
3) Injection Wells
32. 4.10 HOSS (heavy oil steam system)
Integration between three
technologies: radial
drilling, steam injection
dual completion
33. 4.11 Other techniques:
SSR (self standing riser)
technology:
Used in development of Deep Water
marginal oil fields
• It enables early production
• Lower drilling time and cost
• Achieving fast first oil
34. 4.11 Other drilling techniques:
1) Offshore side tracking: wells on a platform reached economic limit
Using these wells to sidetrack marginal fields
Applied in: Dessert project
2) Underbalanced drilling: wellbore pressure < formation pressure
• Providing production testing during drilling
• Reduce formation damage
• Applied in: Indonesia
In high pour point marginal oil reservoirs
35. 4.11 Other techniques:
•Extended reach drilling:
• Enhancing production by accessing different parts of reservoir
• Common practice in many areas
• Having many challenges
36. • Hydraulic fracturing mostly used in marginal fields have several bad impacts
on shallow water sources
• High water cut off in heavy oil marginal fields requires high number of pours
which contaminate subsurface water aquifers
• Disuse of mud in radial drilling reduces formation damage
Environmental impact
38. Conventional Case Studies
LOCATION DESCRIPTION SOLUTION RESULT
West Qaron
Field
High cost for a
separate
pipeline
A small connection From adjacent field
IRR changed
from -2.8% to
12%
Gazwarina
Field
High cost for a
production
facility
Use of excess processing capacity of SUCO base
Field put on
production
Zafarana
Field
Effective way
of handling
crude oil
Utilizing "The Floating Production Storage and
Offloading (FPSO) tanker"
50% cost savings
production
facilities
South Bdran
Field
Esp went down
twice
Using 3.5 inches coil tubing gas lift line to transmit the
gas from the nearest platform
Operating cost
reduced
considerably
39. Conventional Case Studies Cont.
LOCATION DESCRIPTION SOLUTION RESULT
Mengkapan
Field,
Indonesia.
high water
cut.
squeeze cementing Oil rate increased from
36 BOPD to 104 BOPD.
Umusadege,
Nigeria Field
Economically
Unattractive
Improved fiscal terms,
Reduced royalty based on a sliding scale
and lower profit tax
Investment was carried
out in this fields
Semberah
Field,
Indonesia
Difficulty in
conducting
detailed
reservoir
study
Using the in-plant test separator as a
production separator( Portable)
The integrity of the
development plan
resulted in raising oil
production from 5,000
to 12,000 BOPD
40. Unconventional Case Studies Cont.
LOCATION DESCRIPTION SOLUTION RESULT
Gemsa Field
High operating
costs for a
marginal reserve
Cable deployed ESP
Reducing
workover costs
July Field
Located in a
complex
structure area
(Up-dip attic oil
reserve)
Horizontal drilling
Development of an
estimated attic oil
reserves of about
5 MMBO
October Field
High operating
costs for a
marginal reserve
Slim-hole Technology
Reduced the
drilling cost and
saved 80% of the
cost of a
conventional
completion
Geisum Field
High operating
costs for a
marginal reserve
Convert jack-up rig to offshore platform
Operating cost is
reduced to 1.35
USD/Bbl
41. Unconventional Case Studies- Cont’d
LOCATION DESCRIPTION SOLUTION RESULT
Semberah
Field,
Indonesia
Difficulty in
conducting
detailed
reservoir study
Extreme overbalance perforating
Oil production
increased from
5,000 to 12,000
BOPD
Alberta Field,
Canada
technical
challenges
Horizontal wells, water injection, dual ESP system,
subsea tieback technology and subsea multiphase
metering.
Horizontal wells
produced 15:20
000
The Younis
Field
high operating
cost for marginal
field
use of coiled tubing
Reduce the cost of
pipe and time
needed for pipe
installation
42. Case study from Al Alamien Field
Acid Frac :
L Bah
AR/G
M Bah
SR Pump
43. • For marginal oil fields , the principal criteria for selecting the field
development option was : technical feasibility , economic profile ,
environmental considerations
• The real challenge is not in selecting the most suitable technologies but in the
way these technologies will be managed.
• It is less the power of the weapons which will lead to victory than the art of
using them.
• The reservoir engineering responsibility of a marginal field must be given to
an engineer who ‘FEELS’ the reservoir more than to one who ‘COMPUTES’ it
Conclusion
44. References
Technology for Developing Marginal Offshore Oilfields.
Subsea engineering hand book.
Leye A. Adetoba, SPE, Chevron Nigeria Ltd. The Nigerian Marginal Field Initiative:
Recent Developments. Paper SPE 163040. Presented at the Nigeria Annual International
Conference and Exhibition held in Abuja, Nigeria, 6–8 August 2012.
Samuel HUSY - Total S.A.. Marginal Fields: Technology Enables Profitability / Marginal
Fields and their Challenges. Paper OTC 21382. Presented for presentation at the Offshore
Technology Conference held in Houston, Texas, USA, 2–5 May 2011.
M.El Awady. MARGINAL FIELDS DEVELOPMENT IN WESTERN DESERT, EGYPT. Paper OMC
2001-27. Presented at the offshore Mediterranean and Exhibition in Ravenna, Italy ,
March 28-3-2001.
45. A. Hassan, SPE, Gulf of Suez Petroleum Company, H. Elshahawi and K. Gad, SPE, Schlumberger Oilfield
Services. An Integrated Approach to Marginal Field Development: Case History from the Gulf of Suez.
Paper SPE 64661. Presented at the SPE International Oil & Gas Conference and Exhibition in China
held in Beijing, China, 7–10 November 2000.
Franco Bottazzi - ENI E&P Division. Marginal Field Development Using CT Completion. Paper SPE
81706. Presented at the SPE/ICoTA Coiled Tubing Conference held in Houston, Texas, U.S.A., 8–9 April
2003.
Oluropo Rufus Ayodele, SPE, and Samuel Frimpong, School of Mining and Petroleum Engineering,
University of Alberta, Canada. Economics of Nigerian Marginal Oil Fields. Paper SPE 81998. Presented
at the SPE Hydrocarbon Economics and Evaluation Symposium held in Dallas, Texas, U.S.A., 5–8 April
2003.
Akinpelu, L.O, SPE, Omole O.A., SPE – University of Ibadan, Ibadan. Economics of Nigerian Marginal
Oil Fields – Identifying High Impact Variables. Paper SPE 128343. Presented at the 33rd Annual SPE
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Technical Conference and Exhibition in Abuja, Nigeria, August 3-5, 2009.
John Conway, Doug Rogers, VECO, Canda. MARGINAL OIL FIELDS. Paper WPC 30180.
References Cont’d
47. Quotes Cont’d
Great days with great team.
Individually we are one drop.
Together, we are an ocean.
I had an amazing adventure and
great experience the last month,
( it was a win-win deal ).
Union with discipline is the hidden
power which creates success