Abstract:

In field development drilling sector, the expense for drilling operation usually accounts for 50% in the sum of investment expense for field development campaign, especially the cost for hiring or newly building the rig. Thus, how to choose the right drilling rig type not only brings various technical and economic benefits but it can also improve the quality and safety in operation efficiency performance. The purpose of this article is either to provide an overview on project or to indicate the main technical issues in the drilling rig selection, the experiences learnt from the similar projects in the world. The technical issues are mainly the drilling rig technology and its facilities, the operation competency in the adverse weather condition and complicated geological formation in Vietnam Offshore, the solving ability of safe solutions. According to the latest drilling rig designs, it is possible to give some solutions to improve the productivity and to raise some practical ideas for the field development drilling campaign at Block B in 2017 of Vietnam oil and gas group.