This document summarizes Cabot Specialty Fluids' (CSF) sustainable business model of leasing cesium formate brines and retaining ownership of the chemicals. This model encourages efficiency by charging clients based on time used rather than consumption. It also aligns incentives between CSF and clients to minimize waste. The model has proven successful, with CSF normally recovering 80-85% of leased brines. The document notes UNIDO's support for innovative concepts like CSF's model that reduce chemical consumption and waste. CSF was honored with a UNIDO award for its contributions to advancing chemical leasing programs.
Biofuel terminology is very imprecise and there is a general market concern that biofuel is a necessary evil imposed by legislation because of the real operational issues that have been experienced in the market. Discover Crown HVO.
Citizens Against Burning of Tires Presentation Lydia Sorflaten
In 2007, CABOT (Citizens Against Burning of Tires) formed. A small group of people worked very hard to prevent Lafarge from burning tires at that time. This presentation shows some of the aspects of the current complex situation. Divert NS' Mission statement, 2016 Annual Report figures, Bill 26 introduced by MLA Keith Caldwell which passed third reading to prevent tire burning in Nova Scotia, figures from St Constant Lafarge Cement Plant, Quebec before and after tire burning. We the citizens do not want to see tires burned in Nova Scotia. We want them to be recycled!
Ximen is pressing ahead aggressively with its goal of becoming a gold producerStephan Bogner
Mining plan now revealed. The gold bull is back! At least according to Adam Hamilton, who cut right to the chase in his June 21, 2019 article “Gold Bull Breaking Out!”: “Gold finally surged to new bull-market highs this week! Several years after its last bull high, gold punched through vexing resistance after the Fed continued capitulating on ever normalizing. This huge milestone changes everything for gold and its miners’ stocks, unleashing new-high psychology fueling self-feeding buying. With speculators not yet all-in and investors wildly underdeployed, gold has room to power much higher.”
And Rockstone’s favorite gold stock at the moment, Ximen Mining Corp., achieved a huge milestone on June 20, 2019 in an announcement that has the potential to change everything as the explorer is pressing ahead aggressively with its goal of becoming a gold producer in southern British Columbia, Canada...
Protect our Environment while Reducing operational expense Rob Harrison
Oil & Gas producers are facing the economic and financial challenges never seen before. Increase R.O.I., improve employee safety and protect our environment today more than ever!
In Situ Oil Sands SOR Reduction Initiativephilbrown49
Brochure of the In Situ Oil Sands SOR Reduction Initiative 2013.
http://www.oil-sands-sor-reduction-2013.com/
The mission of the In Situ Oil Sands SOR Reduction Initiative 2013 is to uncover the latest steam injection techniques, recovery technologies, water treatment technologies and production techniques through knowledge sharing between industry innovators. The conference will see experienced operators delivering presentations on their successes and failures on trials for novel steam generation and oil recovery practices.
Reduction of Carbon Footprints in Shipping Industry-Nirjhar Sarkar-GUNI-Gujar...nirjharsarkar20
To reduce the carbon footprints the current shipping industry is open up to a lot options. However, the point is that which option is more efficient, cost effective and preferable. All the options have its own pros and cons.
The shipping industry is already on verge of adopting an alternate source of power to reduce the carbon emissions. The only awaiting factor is which alternate fuel develops faster and is made available in market and how much efficient is it compared to its other competitors. The pace with which the developments are ongoing and efforts that are been put on to reduce the carbon emissions by 2050, its not going to be further before which the transition is going to complete.
Review of EOR Selection for light tight oil
Key Themes:
Upfront EOR Development Planning
Cash is king but Permeability Rules
Geology Selects Technology
Nanospheres, Steam Flooding, Misc Gas Flooding, EOR Selection Criteria
Biofuel terminology is very imprecise and there is a general market concern that biofuel is a necessary evil imposed by legislation because of the real operational issues that have been experienced in the market. Discover Crown HVO.
Citizens Against Burning of Tires Presentation Lydia Sorflaten
In 2007, CABOT (Citizens Against Burning of Tires) formed. A small group of people worked very hard to prevent Lafarge from burning tires at that time. This presentation shows some of the aspects of the current complex situation. Divert NS' Mission statement, 2016 Annual Report figures, Bill 26 introduced by MLA Keith Caldwell which passed third reading to prevent tire burning in Nova Scotia, figures from St Constant Lafarge Cement Plant, Quebec before and after tire burning. We the citizens do not want to see tires burned in Nova Scotia. We want them to be recycled!
Ximen is pressing ahead aggressively with its goal of becoming a gold producerStephan Bogner
Mining plan now revealed. The gold bull is back! At least according to Adam Hamilton, who cut right to the chase in his June 21, 2019 article “Gold Bull Breaking Out!”: “Gold finally surged to new bull-market highs this week! Several years after its last bull high, gold punched through vexing resistance after the Fed continued capitulating on ever normalizing. This huge milestone changes everything for gold and its miners’ stocks, unleashing new-high psychology fueling self-feeding buying. With speculators not yet all-in and investors wildly underdeployed, gold has room to power much higher.”
And Rockstone’s favorite gold stock at the moment, Ximen Mining Corp., achieved a huge milestone on June 20, 2019 in an announcement that has the potential to change everything as the explorer is pressing ahead aggressively with its goal of becoming a gold producer in southern British Columbia, Canada...
Protect our Environment while Reducing operational expense Rob Harrison
Oil & Gas producers are facing the economic and financial challenges never seen before. Increase R.O.I., improve employee safety and protect our environment today more than ever!
In Situ Oil Sands SOR Reduction Initiativephilbrown49
Brochure of the In Situ Oil Sands SOR Reduction Initiative 2013.
http://www.oil-sands-sor-reduction-2013.com/
The mission of the In Situ Oil Sands SOR Reduction Initiative 2013 is to uncover the latest steam injection techniques, recovery technologies, water treatment technologies and production techniques through knowledge sharing between industry innovators. The conference will see experienced operators delivering presentations on their successes and failures on trials for novel steam generation and oil recovery practices.
Reduction of Carbon Footprints in Shipping Industry-Nirjhar Sarkar-GUNI-Gujar...nirjharsarkar20
To reduce the carbon footprints the current shipping industry is open up to a lot options. However, the point is that which option is more efficient, cost effective and preferable. All the options have its own pros and cons.
The shipping industry is already on verge of adopting an alternate source of power to reduce the carbon emissions. The only awaiting factor is which alternate fuel develops faster and is made available in market and how much efficient is it compared to its other competitors. The pace with which the developments are ongoing and efforts that are been put on to reduce the carbon emissions by 2050, its not going to be further before which the transition is going to complete.
Review of EOR Selection for light tight oil
Key Themes:
Upfront EOR Development Planning
Cash is king but Permeability Rules
Geology Selects Technology
Nanospheres, Steam Flooding, Misc Gas Flooding, EOR Selection Criteria
Valudor DAF, dissolved air flotation, and SHURE technology combine with proce...William Toomey
FLUID PROCESS OPTIMIZATION with Fine Solids Removal through SHURE Advanced Cavitation Management Technology
and Valudor Process Performance Chemicals Process Water Reuse
Flies like a plane Safe as a plane with the Power of a plane TS820 Brief introwww.thiiink.com
Advanced Hybrid Propulsion System – TS820 Flettner Rotor
TS820 easy to install – done in normal a docking cycle – easy to operate
TS820 one rotor system, servicing 4 different Tanker types
Cost & IRR?
”Why use 4 or 2 Rotors? ”If you can do it with 2 or 1?
A380/TS820 How much power du you need? how much will you get?
Power Tanker has 12,000Kw installed 2 rotors make up-to 19,000Kw
Base tech 10 years of full scale sea trial
Safety at Sea for Explosive Cargos & Tanker Operations
TS820 Rotors up to 50% of RetroFit fuel and Co2 savings
SPE 24973 35 mm slides in Powerpoint .pptxJohn Downs
Scanned copies of the original 35 mm slides used in the presentation of SPE paper 24973 by John Downs of Shell at the European Petroleum Conference held in Cannes, France, 16-18 November 1992
Single cell protein (SCP) from methane and methanol - publications from Shell...John Downs
The Fermentation and Microbiology (FMB) department of Shell Research Centre in Sittingbourne was a leader in the development of single cell protein (SCP) production from methane and methanol in the 1970's. This updated presentation lists virtually all of the publications from the Shell scientists engaged at that time in the development of a single cell protein production process using methane and methanol as the carbon feedstocks. Their main focus was growing Methylococcus capsulatus in continuous culture on methane.
A Walk Through Devon - Day 6 - Morchard Bishop to Five Crosses John Downs
Day 6 of an 8-day walk through Devon. An 8-mile walk from Morchard Bishop to Five Crosses on a route that could be used by Lands End to John O'Groats long distance walkers passing through the county
A Walk through Devon - Day 5 - Bondleigh Bridge to Morchard Bishop John Downs
Day 5 of an 8-day walk through Devon. An 8-mile walk from Bondleigh Bridge to Morchard Bishop on a route that could be used by Lands End to John O'Groats long distance walkers passing through the county
A Walk through Devon - Day 4 - Stockley Hamlet (Okehampton) to Bondleigh BridgeJohn Downs
Day 4 of an 8-day walk through Devon. An 8-mile walk from Stockley Hamlet to Bondleigh Bridge on a route that could be used by Lands End to John O'Groats long distance walkers passing through the county
Day 2 of a walk through Devon - From Lewdown to Bridestowe. The entire set of " A Walk through ..." walks currently covering the south-west of England from Lands End up into the Cotswolds could be used as a route guide by Lands End-John O'Groats (LEJOG) walkers
Day 1 of a walk through Devon - From Launceston on the Cornwall /Devon border to Lewdown in Devon. The entire set of " A Walk through ..." walks currently covering the south-west of England from Lands End up into the Cotswolds could be used as a guide by Lands End-John O'Groats (LEJOG) walkers
SPE 145562 - Life Without Barite: Ten Years of Drilling Deep HPHT Gas Wells ...John Downs
The tradition of using barite to increase the weight of drilling fluids dates back to the early-1920’s and, while it has been of great benefit to the oil industry over the past 90 years, it has also caused some chronic and persistent well construction problems along the way. These problems, which are very familiar to drillers, include well control difficulties, stuck pipe incidents and formation damage.
The oil industry has known since the 1970’s that replacing barite with suitable non-damaging solutes in reservoir drill-in fluids is an effective way of reducing formation damage, simplifying operations and eliminating the need for expensive formation damage by-pass operations. The development of brine-based drill-in fluids opened up the opportunity to connect more effectively with hydrocarbon reserves by allowing the construction of long high-angle reservoir sections completed in open hole. Despite the advantages on offer, the industry was unable to exploit this novel technology in deep HPHT gas field developments until the mid- to late-1990’s when drill-in fluids based on potassium and cesium formate brine became available in commercial volumes.
Cesium formate brine was first used as a reservoir drilling fluid in the Huldra gas/condensate field in the North Sea in January 2001, and has now been used to drill a total of 29 deep HPHT gas wells. The information presented and reviewed in this paper confirms that the use of potassium and cesium formates as the sole weighting agents in reservoir drill-in fluids has enabled operators to enjoy the full economic benefits of creating low-skin open-hole completions in deep high-angle HPHT gas wells. The review also concludes that the use of these heavy formate brines as drill-in fluids over the past 10 years has facilitated the safe and efficient development of deep HPHT gas reserves by:
• Virtually eliminating well control and stuck pipe incidents
• Enabling the drilling of long high-angle HPHT wells with narrow drilling windows
• Typically reducing offshore HPHT well completion times by 30 days or more
• Improving the definition and visualization of the reservoirs
• Eliminating the need for clean-ups, stimulation treatments or any other form of post-drilling well intervention to remove formation damage caused by the drilling fluid
This has all been made possible by the operators’ acceptance and adoption of the award-winning Chemical Leasing (ChL) and fluid management programmes that form the basis of their contracts with the sole producer of cesium formate brine. The use of the ChL model has played an important role in reducing the unnecessary consumption of what is a very rare and valuable chemical resource
SPE 165151 - The Long-term Production Performance of Deep HPHT Gas Condensat...John Downs
Formate brines have been in use since 1995 as non-damaging drill-in and completion fluids for deep HPHT gas condensate field developments. The number of HPHT fields developed using formate brines now totals more than 40, and includes some of the deepest, hottest and highly-pressured reservoirs in the North Sea. The well completions have been both open-hole and cased-hole.
An expectation from using formate brines as reservoir drill-in and completion fluids is that they will cause minimal damage to the reservoir and help wells to deliver their full productive potential over the life-time of the field. The validity of this expectation has been tested by examining the long-term hydrocarbon production profiles of eight HPHT gas condensate fields in the North Sea where only formate brines have been used as the well completion fluids. In five of these fields the wells were drilled with oil-based muds and completed by perforating in cased hole with high-density formate brines. In another two of the fields the wells were drilled with formate brines and completed with screens entirely in open hole using the same brines. The last of the eight fields was drilled with formate brine and the wells were then completed with same fluid in either open hole or cased hole.
The results of the production analysis provide a unique insight into the impact of a single type of specialist drill-in and completion fluid on the rate of recovery of hydrocarbon reserves from deeply-buried reservoirs in the North Sea
A Ramble through Cornwall - Day 8 - Bodmin to St Neot John Downs
A short (7 mile) walk from the outskirts of Bodmin east to St Neot, skirting the southern border of Bodmin Moor. Mostly walking in fog on this particular day
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
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- How to streamline operations with automated policy checks on container images
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
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Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
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https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
Formate matters-issue-6
1. Traditionally, oilfield chemical companies sell
their products to oil companies and hope
that the user’s inefficient management of the
chemicals creates high consumption and
increased sales opportunities for the
chemical provider. This out-dated business
model encourages inefficiency and waste.
Starting in 1997, CSF broke with tradition by
leasing cesium formate brines to oil
companies as HPHT well drilling and
completion fluids. With this model, CSF
retains ownership and stewardship of the
chemicals at all times and charges the client
for the number of days they are used in the
field. At the end of the project, the fluids are
returned to CSF for reclamation and leased
out to the next client. By careful management,
CSF normally recovers and re-uses around
80 to 85% of the brine. The virtual decoupling
of payment from consumption encourages
better chemical management, with the end
user and the chemical provider both having a
common interest in:
Conserving chemicals, which reduces
overall raw material, water and energy use
Minimising waste, as the cost of disposal
is moved from the user to the chemical
provider.
The chemical leasing business model allows
the user to concentrate fully on the project
knowing that the chemical provider carries
the responsibility for managing the enabling
technology from cradle to grave.
UNIDO is devoted to reducing unnecessary
consumption of finite chemical resources.
Encouraging innovative concepts, such as
CSF’s sustainable chemical leasing model, is
an integral element of UNIDO’s Green
Industry initiative, hence the creation of the
Global Chemical Leasing Awards with the
Austrian Federal Ministry for Agriculture,
Forestry, Environment and Water Management.
Ms. Petra Schwager, Project Director for the
UNIDO Global Chemical Leasing programme,
says: “Chemical Leasing has proven to bring
economic and environmental improvements
to participating companies as it allows them
to be more competitive. The award system
recognises companies and consultants who
have made outstanding contributions
towards the development and advancement
of chemical leasing programmes.”
CSF has leased cesium formate brine to over
250 well construction operations around the
world. Clients and leasing partners are the
major oil companies, including Statoil, Shell,
BP, ExxonMobil, ENI and Total. Jim Turner,
General Manager of CSF, says: “As long-time
champions of the chemical leasing model
in the oil segment, we are delighted to receive
the UNIDO Chemical Leasing Award
in recognition of our sustainable approach
to business”.
UNIDO is hopeful that its Chemical Leasing
awards will further enhance the global
visibility of chemical leasing and encourage
more widespread application of the concept
by the oil industry.
For more information go to
www.chemicalleasing.com.
Cabot honoured with UNIDO
chemical leasing award
Cabot Specialty Fluids (CSF) is recognised for its sustainable business model at this year’s
UNIDO (United Nations International Development Organisation) chemical leasing awards.
2 Thanks a billion
2 Who was Derrick?
3 Getting heavy with
oil-based completion
fluids
4 New insights into
formate brines’ viscosity
INSIDE
Cabot honoured with UNIDO
F O R M A T E M A T T E R S
Issue no. 6 – December 2010/January 2011 News and opinion from Cabot Specialty Fluids www.formatebrines.com
5 TO WIN!
Brine reclamation is at the heart of Cabot
Specialty Fluids’s sustainable business model
Does your completion brine have
hidden costs?
Compare the full cost of completion
and workover brines.
Order your free software from
www.formatebrines.com/brinewise today.
Check now with BrineWise
3. Issue no. 6 – December 2010/January 2011 FORMATE MATTERS 3
It is generally accepted that well completion
operations are best conducted in a low-
solids fluid environment. A low level of solids
in the well bore fluid during completion
improves field development economics by
reducing formation damage and non-
productive time (NPT).
To avoid formation damage, it’s advantageous
to use water-based completion fluids in wells
that have been drilled with water-based mud,
and oil-based completion fluids in wells
drilled with oil-based mud. But how do you
increase and control the density of a solids-
free oil-based completion fluid where the oil
phase has a density of 0.80 s.g?
The answer is to emulsify brine into the oil
phase of the fluid. The weight of this water-
in-oil emulsion can be altered up and down
by changing brine density. Using cesium
formate brine as the internal brine phase of
these emulsions increases fluid density up
to 1.70 s.g.
Perforating kill pill
Cesium formate brine was first used to
weight up an oil-based completion fluid in
2001 on Norsk Hydro’s Visund field develop-
ment in the Norwegian North Sea. The long
horizontal wells in this field were drilled with
OBM and needed perforating in a 1.65 s.g.
low-solids oil-based kill pill (LS OBM).
Previous attempts to complete these wells in
calcium bromide water-based kill pills
had resulted in low productivity indices of
60-70 m3
oil /day/bar.
M-I SWACO provided Norsk Hydro with a
LS OBM kill pill weighted with 2.20 s.g.
cesium formate brine for the next well
perforation. The operator also changed the
perforating system, going for dynamic under-
balance with 35-bar over-balance at static.
The result was a well (A-23) with a production
index of 250 m3
oil /day/bar and a production
rate of 7,700 m3
oil /day (48,400 bbl/day)1
. A
further five wells were completed in this way,
resulting in up to six-fold increases in well
productivity indices (300–900 m3
oil /day/bar)
and initial flow rates of up to 8,500 m3
oil /day
(53,460 bbl/day)2
.
Open-hole completion fluid
for use with sand screens
Statoil was the next operator to use cesium
formate brine in an oil-based completion
fluid. Statoil had drilled three oil production
wells in the Statfjord Satellites with OBM and
needed an oil-based 1.66 s.g. completion
fluid in the hole while installing sand screens.
M-I SWACO supplied Statoil with LS OBM
fluids weighted with cesium formate brine for
the three completion operations, which took
place from July 2002 to April 2003. The
applications were considered successful by
the operator, “giving production at the high
end of expectations”.3
Unique oil-based
completion fluid
LS OBM weighted with cesium formate brine
has been used in 18 completion operations
in the Norwegian North Sea over the past
nine years. The oilfield developments where
this unique fluid has been deployed include
Visund, Statfjord, Njord, Gullfaks (A, B, C and
satellites), Rimfaks, Oseberg, Snorre and,
most recently, Alve.
Arne Askø, Technical Service Manager
Eastern Hemisphere at M-I SWACO Drilling
Solutions, says: “M-I SWACO VERSAPRO LS®
with cesium formate as the internal phase
will continue to be the optimum
solution for high-density LS OBM. The use of
low-solids or no-solids OBM has been so
successful that these fluid options are the
preferred choice in open hole completions
for several of our clients in the North Sea.”
References
1. Jiang, P., Taugbol, K., Mathisen, A.M.,
Alteras, E. and Mo., C.: “New Low-Solids
Oil Based Mud Demonstrates Improved
Returns as Perforating Kill Pill”, SPE
83696, presented at SPE International
Symposium on Formation Damage,
Lafayette, LA, February 20-21 2002.
2. Stenhaug, M., Erichsen, L., and
Doornboch, F.H.C.: “A Step in Perforating
Technology Improves Productivity of
Horizontal Wells in the North Sea,” SPE
84910, SPE International Improved Oil
Recovery Conference, Kuala Lumpur,
20-21 October 2003.
3. Taugbol, K., Lilledal, L., Juel, H., Svanes,
K. and Jakobsen, T.M.: “The Completion
of Subsea Production Wells Eased by the
Use of Unique, High-Density, Solids-Free,
Oil Based Completion Fluid”, IADC/SPE
87126, SPE/IADC Drilling Conference,
Dallas, Texas, 2-4 March 2004.
LS OBM with cesium formate brine as the
internal phase is helping to improve
production in challenging North Sea wells
Getting heavy with oil-
based completion fluids
COMPATIBILITY WITH SHALE
Hail shale
A new Formate Technical Manual chapter
entitled ‘Compatibility with Shale’ is now
available. It explains the mechanisms
involved in borehole instability and how
formate brines prevent these from occurring.
Methods for testing borehole stability are
described and results of shale stability
testing in formate brines shown. The review
includes interesting field experience from
Agip in South Italy and the Barents Sea,
Statoil in Huldra, Kvitebjørn and Valemon,
and KerrMcGee in China. Go to
www.formatebrines.com/manual for your
free copy.
Cesium formate brine has been extending the density range
of low-solids oil-based completion fluids since 2001.
‘Compatibility with Shale’ is the latest
edition to the Formate Technical Manual