Well Control Strategy plan For Block V111 - Dindir - Sudan : ( Case Study )

Abstract

Well control problems plagued the petroleum industry since it's infancy and known as losses of valuable resources, costs increasing, environmental damages, personnel casualties. The objective of this research is to develop well control strategy for block-8 depending on Twakul- 1 well analysis of control problem occurred. Studying the wire line data for the purpose of determining high pressure regions, that found three of high pressure zones over there. It was then confirmed pressure points data using well test data. A reasonable match between data confirmed the accuracy of data and as reference the wire line data were correlated to the others. Wire line data have been matches with each other justifying normal trend lines exist in subnormal region. Based on pressure analysis resulted balanced and safe mud weights were illustrated. Volumetric stripping method has been applied to kill the well. It is a complex technique combining volumetric method and stripping operation. It is worth mentioning; this method not common in the oil industry and is the first time to be applied in the Sudan. Well control strategy has been developed to help prevent and ease of dealing with such problems in future for Block-8, Dindir – Sudan. This well control strategy include four sections, a section of equipments, a section of alarms, a section of procedures and a section of training at rig site. Finally; it is a future prospective to have Sudanese well control, blowout and fire fighting strategies.