--- title: The Well Integrity Blog | by Wellcem | Svein Normann description: Svein Normann has a MSc from the Norwegian University of Science and Technology and 27 years’ experience in the oilfield. 10 years in field operations as cement operator, design engineer and operations manager. Further on 16 years in oilfield equipment engineering and development. He is today working as VP Global Operations & Technology at Wellcem AS. --- [![Home](https://blog.wellcem.com/hs-fs/hubfs/Wellcem%20logo/Wellcem_logo_box_ny.png?width=120&height=101&name=Wellcem_logo_box_ny.png "Home")](https://www.wellcem.com) [![Home](https://blog.wellcem.com/hs-fs/hubfs/Wellcem%20logo/Wellcem_logo_box_ny.png?width=120&height=101&name=Wellcem_logo_box_ny.png "Home")](https://www.wellcem.com) - [Solution](https://www.wellcem.com/solution) - [Applications](https://www.wellcem.com/applications) - [Customers](https://www.wellcem.com/customer-stories-case-studies) - [News](https://blog.wellcem.com/news) - [About](https://www.wellcem.com/about-wellcem) - [Contact](https://www.wellcem.com/contact-wellcem) - [**Blog**](https://blog.wellcem.com) Search # The Well Integrity Blog by Wellcem ### I want to read about P&A Select Option [Well Integrity](https://blog.wellcem.com/topic/well-integrity) [P&A](https://blog.wellcem.com/topic/pa) [Cement](https://blog.wellcem.com/topic/cement) [Cement slurry](https://blog.wellcem.com/topic/cement-slurry) [Cement testing](https://blog.wellcem.com/topic/cement-testing) [Resins](https://blog.wellcem.com/topic/resins) [zonal isolation](https://blog.wellcem.com/topic/zonal-isolation) [Cement plugs](https://blog.wellcem.com/topic/cement-plugs) [leaking wells](https://blog.wellcem.com/topic/leaking-wells) [gas migration](https://blog.wellcem.com/topic/gas-migration) [Norsok D-010](https://blog.wellcem.com/topic/norsok-d-010) [Zonal isolations](https://blog.wellcem.com/topic/zonal-isolations) [micro-annuli](https://blog.wellcem.com/topic/micro-annuli) [risk analysis](https://blog.wellcem.com/topic/risk-analysis) [sustained casing pressure](https://blog.wellcem.com/topic/sustained-casing-pressure) [Cement Plugging](https://blog.wellcem.com/topic/cement-plugging) [Fluid separation](https://blog.wellcem.com/topic/fluid-separation) [Free water in cement](https://blog.wellcem.com/topic/free-water-in-cement) [Water-cement mixing](https://blog.wellcem.com/topic/water-cement-mixing) [cementing](https://blog.wellcem.com/topic/cementing) [free water in slurry](https://blog.wellcem.com/topic/free-water-in-slurry) [standards for cementing](https://blog.wellcem.com/topic/standards-for-cementing) [Carbon Capture Storage (CCS)](https://blog.wellcem.com/topic/carbon-capture-storage-ccs) [Cement additives](https://blog.wellcem.com/topic/cement-additives) [Coiled Tubing](https://blog.wellcem.com/topic/coiled-tubing) [Fluid loss](https://blog.wellcem.com/topic/fluid-loss) [SCP application](https://blog.wellcem.com/topic/scp-application) [ThermaSet](https://blog.wellcem.com/topic/thermaset) [bleedoff](https://blog.wellcem.com/topic/bleedoff) [liner lap](https://blog.wellcem.com/topic/liner-lap) [mixing cement](https://blog.wellcem.com/topic/mixing-cement) [mixing energy in cement](https://blog.wellcem.com/topic/mixing-energy-in-cement) [All Topics](https://blog.wellcem.com) *By Svein Normann - November 21, 2019* #### Plug and abandonment: Different materials for oil and gas wells In our [previous article](https://blog.wellcem.com/plug-and-abandonment-what-legislation-and-job-design-should-apply), I promised to address the doubts of the readers around the material that could be placed in the hole as a barrier for plug and abandonment, and whether those materials differ depending on time span defined for the barrier's life. I gave you a spoiler when I told you that... [Read More](https://blog.wellcem.com/plug-and-abandonment-different-materials-for-oil-and-gas-wells) [![The most common causes for leaks in oil wells_TOFU – Kopi](https://blog.wellcem.com/hs-fs/hubfs/The%20most%20common%20causes%20for%20leaks%20in%20oil%20wells_TOFU%20%E2%80%93%20Kopi.png?width=359&height=450&name=The%20most%20common%20causes%20for%20leaks%20in%20oil%20wells_TOFU%20%E2%80%93%20Kopi.png "The most common causes for leaks in oil wells_TOFU – Kopi")](https://blog.wellcem.com/free-guide-the-most-common-causes-for-leaks-in-oil-wells-and-8-question-to-consider-before-you-select-solution-lp) #### [*By Svein Normann - October 30, 2019* Plug and Abandonment: What legislation and job design should apply?](https://blog.wellcem.com/plug-and-abandonment-what-legislation-and-job-design-should-apply) #### [*By Svein Normann - June 10, 2019* Sustained Casing Pressure (SCP): Defining if a scenario needs intervention](https://blog.wellcem.com/sustained-casing-pressure-scp-defining-if-a-scenario-needs-intervention) #### [*By Svein Normann - May 27, 2019* Sustained casing pressure (SCP): When do we have a problem?](https://blog.wellcem.com/sustained-casing-pressure-scp-when-do-we-have-a-problem) #### [*By Svein Normann - November 28, 2018* This is how we dealt with a leaking liner lap](https://blog.wellcem.com/this-is-how-we-dealt-with-a-leaking-liner-lap) #### [*By Svein Normann - August 07, 2018* 6 ways to prevent well integrity problems](https://blog.wellcem.com/6-ways-to-prevent-well-integrity-problems) #### [*By Svein Normann - July 24, 2018* Gas migration: A potential disaster](https://blog.wellcem.com/gas-migration-a-potential-disaster) #### [*By Svein Normann - March 08, 2018* Mixing energy in cement and its effect](https://blog.wellcem.com/-mixing-energy-in-cement-and-its-effect) #### [*By Svein Normann - December 12, 2017* Fluid Loss in cement slurries for oil well applications](https://blog.wellcem.com/fluid-loss-in-cement-slurries-for-oil-well-applications) #### [*By Svein Normann - November 20, 2017* Effective ways of reducing well integrity problems](https://blog.wellcem.com/effective-ways-of-reducing-well-integrity-problems) - - - - ## THE WELL INTEGRITY BLOG The place where oil and gas well professionals go to learn and share their knowledge and experience about well integrity. #### Recent news [**How to seal a leak you cannot get to?** 31 May 2021](https://blog.wellcem.com/how-to-seal-a-leak-you-cannot-get-to) [**Materials to remediate leakages from Carbon Capture Storages (CCS)** 04 November 2020](https://blog.wellcem.com/materials-to-remediate-leakages-from-carbon-capture-storages-ccs) #### Subscribe Subscribe to instant notifications on new content from our well integrity blog: [![Subscribe](https://no-cache.hubspot.com/cta/default/2922560/d2139d75-ecbf-4e11-8e69-debcb04bf218.png)](https://cta-redirect.hubspot.com/cta/redirect/2922560/d2139d75-ecbf-4e11-8e69-debcb04bf218)   #### What's next - [Solution](https://2922560.hs-sites.com/solution) - [Applications](https://2922560.hs-sites.com/applications) - [Cases](https://2922560.hs-sites.com/customer-stories-case-studies) - [News](https://blog.wellcem.com/news) - [Contact](https://2922560.hs-sites.com/contact-wellcem) - [About](https://2922560.hs-sites.com/about-wellcem) #### Contact us Wellcem AS Kanalsletta 4 4033 STAVANGER Norway Copyright © 2026 Wellcem AS - Designed with by [Leadify](https://leadify.no)