These data types hold data from downhole logging:
Choose the correct data type category to use, depending on the kind of data you want to enter or work with:
|For this kind of data||Choose this category|
|Natural gamma||Natural gamma|
|Sonic velocity||Sonic velocity|
Downhole resistivity can be obtained from a number of different electrode configurations. These Interpreted temperature data represents a "best estimate" of the formation or reservoir temperature. The data used to make this estimate is usually obtained from downhole temperature surveys, but can be derived from other sources such as static formation temperature - SFTT tests during drilling, alteration information, etc.
Self Potential (SP) records the variation of naturally induced voltage with depth down the well. SP may be generated by fluid movements, and therefore may indocate feed zones and fluid flow paths within the reservoir.
Spinner measurements record the flow of fluid within the well, and are therefore a powerful method to accurately specify feed or loss zones within the well. Spinner measurements are commonly made at the same time as temperature and pressure measurements, often during injection into the well.
GeoData Manager assumes that production mass flows are positive and injection flows are negative. Spinner runs are usually made while injecting. If you enter a positive mass flow, then when you click
Save, GeoData Manager asks if you want to change the sign to negative:
Fractures are commonly measured by a downhole viewing tool. Their size, orientation and frequency of occurrence give valuable information about the possible permeability and productivity of the formations.
Godevil is a method of ascertaining the current clear depth of a well, by lowering
godevils of various diameters down until they are unable to go any further. You can specify a godevil or broach: