A wellbore is a hole that is drilled to assist exploitation of natural resources including oil, gas or water. Wellbore will be the primary hole which the final well will be made. Also, wellbore can be encased by Steel or Cement or may not be encased depending on the situation.

Reserves of Natural Bitumen (Gilsonite) are spread all over the globe in several areas and within many basins in different forms considering the geological nature of each area. Many of the areas are well explored such as Utah in USA and some are known to some extent such as reserves of Gilsonite in Angola and […]