Supercritical co leakage modeling for well integrity in. According to norsok d010, well integrity is defined as the application of technical, operational and organizational solutions to reduce the risk of uncontrolled release of formation fluids and well fluids throughout the life cycle of a well. Our well integrity tools provide accurate evaluations, allowing. Must be visible, appropriate range, have a stop pin. Well integrity evaluationassessment of gas storage well integrity is critical to operations what is well integrity. Supercritical co2leakage modeling for well integrity in geological storage project houdu e. Well integrity integrity assessment of oil and gas wells rams group activities what is well integrity. The assessment of well integrity for gas storage wells requires a holistic approach and a detailed evaluation process.
Optimization of plugging design for well abandonment risk management of longterm well integrity yvi le guen a, olivier poupard, matteo loizzo b a. Well integrity is based on the establishment and maintenance of confinement barriers in the particular well. Geological movement, corrosion and erosion can all contribute to damage. Well integrity has to be demonstrated over the well lifecycle, during. Application of well integrity methods for gas storage wells. The irony of integrity a study of the character strengths of. A well integrity report form 19 sfn 5767 shall be filed with the commission subsequent to any workover conducted on a uic well, any periodic pressure test conducted on a uic well, or any pressure test conducted for temporary abandonment purposes. Integrity in professional ethics a discussion paper 0909.
Most well integrity management systems ar e aimed at the operational phase of the well, leaving th e well construction and abandonment phases to drilling stan dards and procedures. A conceptual framework of integrity abstract this article reports on the findings of a qualitative study in which the construction of integrity of some business leaders was explored. Well barriers the primary well barrier is the first object to prevent unintentional flow from the source the secondary well barrier prevents further unintentional flow if the primary well barrier should fail ref. Godoy and others published well integrity support by. Enter your mobile number or email address below and well send you a link to download the free kindle app. Advanced well integrity management training course in. Inplementing a well integrity management system society of.
The norsok d010 standard established a definition of well integrity. Well integrity and longterm well performance assessment. Oecd sherpa office and the centre for tax policy and administration, as well as benefiting from consultations with delegates from various oecd bodies including the oecd corporate governance committee cgc, the working party on state ownership and privatisation practices wpsopp, the. Example of possible leakage paths for co 2 in a cased wellbore celia et al, 2004. Well integrity issues during drilling operations historically most well integrity issues during drilling operations occur whilst drilling or tripping. Pdf an introduction to well integrity tulio wever 1. Inspection needs supporting increased well integrity dr.
As per wims standards, a well is considered integral if at least two separate and sound confinement barriers across each flow path between the potential reservoir and surface are available all the time. Well integrity is a critical aspect of all production and injection activities from and is best managed using a lifecycle well integrity management program. However, we particularly welcome feedback on this issue. A successful method for external corrosion and damage detection on outer and middle concentric strings of casing spe no. Are the working limits of the asset known and strictly observed. Well integrity monitoring failure in the integrity of any well can be expensive resulting in lost production, environmental pollution, repair costs, or accidents. Managing well integrity for safety and performance of co2. Well design and well integrity wabamun area co s project. Optimization of plugging design for well abandonment risk. The irony of integrity a study of the character strengths of leaders by. Well integrity for natural gas storage in depleted.
It was determined that a robust well integrity process begins with well design and carries through to abandonment, i. Well integrity means application of technical, operational and organizational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well. There are different definitions of what is well integrity. If so, what specific aspects of the well induce risk into the sequestration system. Participants in this course will learn how to manage well design, construction, surveillance, and the documentation of well integrity for a lifeofwell philosophy. Well design and well integrity the main observation from these studies is that cased wells as more prone to leakage than drilled and abandoned wells, and injection wells are more prone to leakage than producing wells. Corrosion logging is designed to evaluate remaining metal thickness of the well completion elements such as a tubing andor casing, up to 3 barriers, based on emission and receipt of electromagnetic field with following computation of data in software.
Supercritical co leakage modelling for well integrity in. Of those, 10% were permanently shut in and 9% were temporarily shut in, leaving more than 600,000 wells with integrity issues producing each and every day. Together the five fundamental principles form a framework for behaving with integrity in the professional and business sphere. Oxand provides statoil with a dedicated it tool supporting its decisionmaking process for the assessment of primary cement jobs. Wabamun area co 2 sequestration project wasp page 6 of 39 well design and well integrity figure 1. This first monographic book on well integrity in shallow sediments subsea should be useful to petroleum students, researchers and oilfield professionals involved in offshore well drilling operations.
Well design and abandonment of wells in the wabamun lake area ercb, 2007. A multitude of well integrity tests and evaluation methods are available, each with unique requirements to be effective. A riskbased approach application to co2 injection phase ieaghg well bore integrity network march, 19 th 2008 yvi le guen, j. Introduction to well integrity production technology. Well integrity services 3 uncover threats using a complete measurement suite of industryleading technologies, well integrity management experts, and multidisciplinary data integration, weatherford assists clients in identifying, evaluating, and mitigating risks to well integrity. Hetrick slide 11 of 22 intermediate casing is cemented and tested cement is the primary barrier for vertical migration of fluids the first attempt aka primary cement job. Corrosion logging tools provide direct measurement of a casing s integrity, and in many cases can be figure 1. Uk well integrity guidelines developed through a collaborative approach to provide guidance on good industry practices to maintain well integrity and meet uk regulatory requirements. Well construction, workover and well intervention wellview well integrity management system wims safewells well failure databases wellmaster, rifts all of these are linked and form a software tree the tullow production well integrity policy also sets out the standards and requirements for all well owners. The priorities of the wells team are to maintain well integrity, avoid hurting anyone and deliver the well on time and in budget.
A roadmap for transferring well integrity risk assessment. The calculated safety margins emphasize that technical well integrity of the 12 examined boreholes is given for enhanced gas recovery injecting 100,000 t of co2 in the altensalzwedel subfield. Ppt well integrity overview powerpoint presentation free. Extended evaluation of primary cement jobs bruno capra. Pdf well integrity plays a key role in the overall performance of oil and gas projects, including carbon capture and storage ccs projects.
Supercritical co2 leakage modelling for well integrity in geological storage project e. Due to the life cycle span, well integrity involves. Well integrity solutions in 2012, an industry survey identified more than 760,000 wells with integrity issues. Well integrity overview well integrity what does it all mean. Well integrity objectives over the long term, could the injection well act as a conduit for co2 to migrate from the reservoir to the surface. Thank you to bruno capra and the rest of the people at oxand for training me in simeo. Hydraulic fracturingwell integrity and fracture containment. Different types of wells and the status of a well gives rise to different leakage scenarios. Schlumberger carbon services, 1 rue henri becquerel, 92140 clamart, france. With automated and integrated workflows, it delivers rapid diagnosis of well barrier elements to spot well integrity risks faster and execute timely preventive and corrective maintenance. The priorities of the wells team are to maintain well integrity, avoid hurting. Titleholders have a legal obligation under the offshore petroleum greenhouse gas storage rma regulations 2011 opggsrma regulations 2011 to report well integrity incidents to nopsema within a specified period of time.
Lack of significant leakage within well andor wellbore both internal and external integrity must be considered and evaluated internal integrity. Onshore well integrity a properly designed well is essential for the environmentally sound, safe production of oil and natural gas. Well portfolio regarding the cement integrity one common platform for the operational teams increased confidence in the cement integrity assessment. Well integrity for life the well integrity discipline began evolving in the 1990s as regulatory agencies identified concerns and began raising awareness. Well integrity has always been a major concern during the well design phase. Geological, hydrogeological and related subsurface conditions. Wif members acknowledge a need for wellintegrity training of key personnel working with well integrity offshore and onshore. Well integrity for natural gas storage in depleted reservoirs and aquifers doe national laboratories well integrity work group barry freifeld, curtis oldenburg, preston jordan, and lehua pan lawrence berkeley national laboratory scott perfect, joseph morris and joshua white lawrence livermore national laboratory. Applicable to all wells in the uk, onshore and offshore, for the purpose of exploiting naturally occurring hydrocarbons. In well drilling, an annulus between the casing and formation provides a path for mud to circulate. Inspection needs supporting increased well integrity. Constructing and maintaining a well is a team effort involving many people with different skills every individual is important.
Data were gathered through ten indepth interviews with six south african business leaders commended to be champions of integrity. Iso165301 petroleum and natural gas industries well. Decisionspace well integrity management software is designed to minimize risks and production loss by streamlining well integrity monitoring and analysis. Managing well integrity for safety and performance of co2 geological storage. Petroleum and natural gas industries well integrity standard iso 165301 well integrity lifecycle governance 2015 bsee domestic and international standards workshop houston may 8 th 2015 presenter paul hopmans project leader of isodis 165301. Well integrity plays a key role in the overall performance of oil and gas projects, including carbon capture and storage ccs projects. Petroleum and natural gas industries well integrity standard. The operational phase is considered to extend from handover of the well after construction, to handover prior to abandonment. Zero lost production volume due to well integrity issues zero reportable hydrocarbon spills releases attributable to loss of well integrity zero dispensations in place for more than one year all planned maintenance completed on time well. Well integrity life cycle mohamed hassan petroliam nasional berhad petronas 2017 9 well integrity management system well integrity management system wims is an application of combined solutions to prevent reduce the risk of uncontrolled release of well fluids throughout well life cycle. Well integrity as subject started drawing more attention in the 70 ties some failures had drastic impacts on the environment and overall business reputation. We are all here today in large part because of the montara and macondo incidents.
The provisions in this document relate to the following two areas. Hydraulic fracturingwell integrity and fracture containment 1 scope 1. Wif members acknowledge a need for well integrity training of key personnel working with well integrity offshore and onshore. Well integrity risk assessment of ketzin injection well ktzi201. Pdf well integrity support by extended cement evaluation. Much headway has been made in the realm of well integrity, but continued research and refinement in practices will undoubtedly occur. And special thanks to the american institute of mining, metallurgical.
Apply to asset integrity engineer, corrosion engineer, engineer and more. Participants in this course will learn how to manage well design, construction, surveillance, and the documentation of well integrity for a lifeof well philosophy. It is a unique approach to well integrity management. This petroknowledge 5day training course on advanced well integrity management is designed to provide the participants with knowledge to deeply investigate the faultier and risk of well integrity. Ensuring longterm well integrity, the ability of a well to provide effective barriers for containment of well fluids and pressures throughout the wells lifecycle, is a vital part of well design and construction. Oxand provides statoil with a dedicated it tool supporting its decisionmaking. As pte i am involved in global industry standards for iso well integrity in the operation phase and well integrity governance over life cycle a new work proposal recently initiated. Zero lost production volume due to well integrity issues zero reportable hydrocarbon spills releases attributable to loss of well integrity zero dispensations in place for more than one year all planned maintenance completed on time well integrity management system audit schedule on target. In these guidelines, well integrity is the application of people, equipment and processes to comply with this general duty throughout the well life cycle. Well integrity for natural gas storage in depleted reservoirs. But after some of the recent events in the oil industry, macondo being the one still fresh in everyones mind, it has. A quantitative riskbased methodology has been developed by oxand to evaluate the. Well integrity policy defines commitments and obligations to safeguard health, safety, environment, assets, and reputation.
Monitoring well integrity the era of construction is the first indicator of the stability of well integrity. The application of technical, operational and organizational solutions to reduce the risk of uncontrolled release of formation fluids and well fluids throughout the life cycle of a well. A free powerpoint ppt presentation displayed as a flash slide show on id. Petroleum and natural gas industries well integrity s. This document is applicable to any well, or group of wells, regardless of their age, location including onshore, subsea and offshore wells or type e. Well integrity basics, prevention, red flags repair options.
Well integrity has to be demonstrated over the well lifecycle, during operations production, injection and or monitoring, abandonment and few hundreds of years after closure, particularly to ensure effective co. Identification and evaluation of well integrity and causes. Corrosion logging service mid for well integrity evaluation. Well integrity quantitative risk assessment workflow. Guidance for the development and implementation of an. I am active as chairperson for the spe well integrity technical section, the well integrity global integrated workshop series, and regularly participate in spe events. Swiss cheese model reason 1997 common production well with two barrier envelopes source well integrity ref norsok d010. View of external corrosion attacking an outer casing string on a well with an active aquifer. Santa barbara 1969 the journey of improving well integrity started with api 14 series for well safety systems, by introducing standards for subsurface safety systems, like storm. Use the well integrity as one of the criteria for the decision. Intetech well integrity toolkit this webbased software has been designed by liane smith and dragan milanovic of intetech ltd.
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