مشروع البحث: Drilling optimizattion Techniques and Improves Drilling Efficiencies in Hard -Abrasive and Salt Formation , SE sirt basin ,Libya
| dc.contributor.advisor | د. الحسين علي أحمد | |
| dc.date.accessioned | 2025-03-13T11:18:16Z | |
| dc.date.available | 2025-03-13T11:18:16Z | |
| dc.description | As the industrialization of the world is growing, both energy consumption and demand are steadily increasing. Hydrocarbons have been an important energy provider for several decades, but the production from oil and gas producers is now declining. In order to meet this rise in energy demand, new hydrocarbon deposits must be found and produced. When drilling towards these oil and gas reservoirs, the first problems may occur already in the formations above the salt structures and salt beds. The density of salt does not increase with burial depth. When its density becomes lower than of the surrounding formations, salt will start to migrate and push through the overlying rocks. Due to the combined effect of compaction disequilibrium and salt tectonics, complex stress patterns can be created in the formations surrounding the salt structures. This may lead to many hazardous scenarios, created by rubble zones and recumbent beds. When drilling inside salt formations, it is salt’s ability to creep and flow that may cause problems. Salt flow may cause borehole deformation. Because large oil and gas reservoirs are associated with salt and hard formations, this may be an important energy source for the future. Therefor, optimisze drilling parameters, increse drilling efficiency, reduce non productive time (NPT) and reduce cost is important and will increase drilling and consequntly the hydrocarbon production. Drilling data from offset wells from Sirte Basin in SE Libya were analyzed and simulated in order to optimize drilling parameters. The results were compared with actual wells drilling data. The parameters used in the data analysis include weight on bit (WOB), rotation per minute (RPM), borehole assembly design BHA), hydraulic. This project went through challanges associted with drilling salt formation and optimimum drilling parameters that are used to overcome these challenges. Drilling bit technology has great impact on drilling efficency, and in this study the drill bits type and their applications are discussed in order to select suitable drilling bit for different rock types. , selecting a proper bit is important to increase drilling efficiency and minimize drilling time. As part of investigating the drilling challenges in salt and hard formations, two new drill-bit technologies have been evaluated. These bits may be beneficial in order to overcome many of the problems related to salt drilling. Based on the results obtained in previous studies, these bits are capable of reducing the shock and vibration levels while drilling. This is because these bits are able to drill smoother than conventional PDC bits. Further, the reduced shock and vibration levels will allow an increase in WOB and rotary speed. Based on previous studies, these are the two of the most important parameters to ROP. Thus, these two new drill-bit technologies might be able to increase ROP when drilling in salt and hard formations. | |
| dc.description.abstract | As the industrialization of the world is growing, both energy consumption and demand are steadily increasing. Hydrocarbons have been an important energy provider for several decades, but the production from oil and gas producers is now declining. In order to meet this rise in energy demand, new hydrocarbon deposits must be found and produced. When drilling towards these oil and gas reservoirs, the first problems may occur already in the formations above the salt structures and salt beds. The density of salt does not increase with burial depth. When its density becomes lower than of the surrounding formations, salt will start to migrate and push through the overlying rocks. Due to the combined effect of compaction disequilibrium and salt tectonics, complex stress patterns can be created in the formations surrounding the salt structures. This may lead to many hazardous scenarios, created by rubble zones and recumbent beds. When drilling inside salt formations, it is salt’s ability to creep and flow that may cause problems. Salt flow may cause borehole deformation. Because large oil and gas reservoirs are associated with salt and hard formations, this may be an important energy source for the future. Therefor, optimisze drilling parameters, increse drilling efficiency, reduce non productive time (NPT) and reduce cost is important and will increase drilling and consequntly the hydrocarbon production. Drilling data from offset wells from Sirte Basin in SE Libya were analyzed and simulated in order to optimize drilling parameters. The results were compared with actual wells drilling data. The parameters used in the data analysis include weight on bit (WOB), rotation per minute (RPM), borehole assembly design BHA), hydraulic. This project went through challanges associted with drilling salt formation and optimimum drilling parameters that are used to overcome these challenges. Drilling bit technology has great impact on drilling efficency, and in this study the drill bits type and their applications are discussed in order to select suitable drilling bit for different rock types. , selecting a proper bit is important to increase drilling efficiency and minimize drilling time. As part of investigating the drilling challenges in salt and hard formations, two new drill-bit technologies have been evaluated. These bits may be beneficial in order to overcome many of the problems related to salt drilling. Based on the results obtained in previous studies, these bits are capable of reducing the shock and vibration levels while drilling. This is because these bits are able to drill smoother than conventional PDC bits. Further, the reduced shock and vibration levels will allow an increase in WOB and rotary speed. Based on previous studies, these are the two of the most important parameters to ROP. Thus, these two new drill-bit technologies might be able to increase ROP when drilling in salt and hard formations. | |
| dc.identifier | 7058 | |
| dc.identifier.uri | https://dspace.academy.edu.ly/handle/123456789/1504 | |
| dc.subject | Drilling optimizattion Techniques and Improves Drilling Efficiencies in Hard -Abrasive and Salt Formation , SE sirt basin ,Libya | |
| dc.title | Drilling optimizattion Techniques and Improves Drilling Efficiencies in Hard -Abrasive and Salt Formation , SE sirt basin ,Libya | |
| dspace.entity.type | Project | |
| project.endDate | 2019 | |
| project.funder.name | هندسة الطاقة البديلة | |
| project.investigator | مهند الصادق غنية | |
| project.startDate | 2018 | |
| relation.isOrgUnitOfProject | 91d97a25-5e85-4d40-9b5e-d052a7b22d73 | |
| relation.isOrgUnitOfProject.latestForDiscovery | 91d97a25-5e85-4d40-9b5e-d052a7b22d73 |