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Search Petrowiki: PetroWiki
...Use the search box at upper right to find content of interest. PetroWiki is indexed by search engines, so you also may find content of interest through your favorite search...term in the search box. Use the Help to locate guides, videos, and slideshows to explain editing. PetroWiki is a living document and therefore the content should be enhanced to include newer technologies and... current information. Share your knowledge with others and help update PetroWiki at the same time! You can't "break" the wiki. Follow these basic steps to get started: Suggested ...
Use the search box at upper right to find content of interest. PetroWiki is indexed by search engines, so you also may find content of interest through your favorite search engine. Use the Glossary to find terms and definitions. Glossary If searching for a specific term please type in "Glossary:" before the desired term in the search box. Use the Help to locate guides, videos, and slideshows to explain editing.
- Information Technology > Knowledge Management (1.00)
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There are different definitions of what is Well Integrity. The most widely accepted definition is given by NORSOK D-010: "Application of technical, operational and organizational solutions to reduce risk of uncontrolled release of formation fluids throughout the life cycle of a well."[1] Other accepted definition is given by ISO TS 16530-2 "Containment and the prevention of the escape of fluids (i.e. Well Integrity is a multidisciplinary approach. Therefore, well integrity engineers need to interact constantly with different disciplines to assess the status of well barriers and well barrier envelopes at all times.
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- Well Drilling > Wellbore Design > Wellbore integrity (1.00)
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...can form more readily (i.e., at higher temperatures) from oil than in pure methane. Other pages in PetroWiki provide additional information on aspects of hydrates and the challenges they can cause in producti...
Hydrates are a possibility in oil/gas exploration, production, transportation, or processing, which involves water and molecules smaller than n-pentane. When small ( 9 Å) nonpolar molecules contact water at ambient temperatures (typically 100 F) and moderate pressures (typically 180 psia), a water crystal form may appear--a clathrate hydrate. These individual polyhedra then combine to form specific crystalline lattices. Such solids can be formed with N2, H2S, CO2, C1, C2, C3, and iso-butane. Larger molecules like n-butane and cyclopentane require the presence of some smaller molecules.
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The pressures in a flowing fluid are calculated assuming the value of the Fanning friction factor is known. Determination of the Fanning friction factor, in fact, may be the most difficult step in this calculation. Fluid friction is studied by the science of rheology. The science of rheology is concerned with the deformation of all forms of matter, but has had its greatest development in the study of the flow behavior of suspensions in pipes and other conduits. The rheologist is interested primarily in the relationship between flow pressure and flow rate, and in the influence thereon of the flow characteristics of the fluid. Only the first four are of interest in drilling-fluid technology.
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