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Pulsed Neutron Detectors
High energy inelastic gammaray spectroscopy presents its own set of challenges in pulsed neutron logging. There are two factors for getting high resolution inelastic data which are: 1. Neutrons generated...
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Pulsed Neutron Physics
This article is second part of article we published last week “Cased hole saturation evaluation” .This article provides brief overview of physics behind pulsed neutron logging. Basic physics behind pulsed...
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Cased hole saturation evaluation
Hydrocarbon saturation determination in cased hole plays an important role in reservoir management. Hydrocarbon saturation estimation over the period of production time helps in making plan for workover operation, understanding...
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Condensate banking in gas wells
Condensate banking is a phenomenon which happens in producing gas wells when bottom hole pressure goes below dew point pressure. Fall of bottom hole pressure below dew point pressure results...
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ONGC HSE standards
Some of the logging tools use radioactive sources and high voltages. After lowering of the casing and cementation, perforation operations are carried out to establish flow of hydrocarbon from the...
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Oilfield Perforation methods
Perforations serve as a basic communication channel between the formation and the cased/cemented wellbore. Perforations may be carried out in two conditions: Overbalanced Perforation Underbalanced Perforation Perforating operation can be...
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Petroleum Geology & Log Analysis
The course petroleum geology and basic log analysis provides the overview of petroleum geology and its different dimensions including various rock types, occurrence and abundance. The course also provides brief...
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Formation Evaluation
Formation evaluation is a log analysis technique used for determination of both physical and chemical properties of rocks and fluid that they contain. The objective of formation evaluation is to locate, define...
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Traps
Traps are the configuration of rocks which are suitable for preventing further migration of hydrocarbons. Hydrocarbons are unable to migrate, as they are sealed by a relatively impermeable formation. Traps are broadly...
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Neutron & Density corrections
Neutron porosity corrections:- Some of the most important and most complex environmental corrections are required for neutron porosity measurements. Neutron porosity is affected by a number of factors, most importantly temperature....
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