Exploratory Well Hits Target Successfully on the 8th Attempt in the Binak Oilfield, North of Persian Gulf

In the Binak oilfield, located in the north of the “Persian Gulf”, seven exploratory wells were attempted to drill to the target,<br>which is the Khami reservoir at a depth of 5600 m. Due to special conditions and problems, drilling through the formations in<br>this oilfield was unsuccessful. The main drilling challenges include selecting correct casing depth, borehole instability due to<br>shale sloughing and severe fluid loss and flow during drilling. These problems resulted in the unsuccessful drilling of seven<br>exploratory wells. Therefore, the following factors were considered in designing the new exploratory well number eight.