Comparison Between Wait Wight & Driller Well-Control Methods in Drilling an Open hole FNE-D1 (Block 6) Sudan

Abstract

Well control is the technique used in oil and gas operation such as drilling and work over and well completion for maintaining for the hydrostatic pressure and formation pressure to prevent the influx of formation fluid into the wellbore. Well control problems plagued the petroleum industry since its infancy and known as losses of valuable resources, costs increasing, environmental damages, personnel casualties using killing method.

The objective of this research is to compare wait and weight and driller methods well control case study for open hole at FNE-D1 In block 6.

Two different killing methods have been applied: Driller; W&W methods. The formation, borehole; wellhead; rig equipment and lay out are considered as a communicating system, in which the three are influenced and restrained by each other.

In this research compare the two difference methods , wait and weight and driller methods can be used kill sheet and software excel sheet.

From the Result , After calculation by used the two methods, it’s found that different results in computing MAASP , we have different results in MAASP for driller method and weight and wait method. That difference is result of the change of the mud weight that is using in the two methods. So that is the cause of the difference in the MASSP when using the weight & wait and driller methods.