ElastomersElastomers are rubber or plastic materials used as a seal. They are commonly used in packers.Contents1 Considerations in selecting an elastomer2 Types of elastomers2.1 Hydrogenated nitrile (HNBR)2.2 F…Read More
Metallurgy for downhole equipmentThe pressures, temperatures, and potentially corrosive conditions that may be found in a wellbore create the need for metals and materials that can resist such conditions.Contents1 Corrosive conditions2 Common mater…Read More
STRUCTURE CONTOUR MAPPINGContour lines help geologists (as well as hikers) understand the slope of the land. Eachline represents the elevation at that line. If you were to walk across a line, you arechanging elevation. The steeper the slope, the more…Read More
Magnetic SurveysMagnetic intensity measurements are taken along survey traverses (normally on a regulargrid) and are used to identify metallic mineralization that is related to magnetic materials(normally magnetite and/or pyrrhotite). Magnet…Read More
Gravity SurveysAll materials in the earth influence gravity but because of the inverse-square law ofbehaviour, rocks that lie close to the point of observation will have a much greater effectthan those farther away. The bulk of the gravitat…Read More