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This paper will describe a new production technology system that enabled focusing on achieving performance objectives in addition to finding and fixing production problems. Inflow Control Device (ICD) is a new completion system that will optimize production, delay water progress, eliminate / minimize annular flow, and ensure a uniform inflow along the horizontal wellbore at the cost of a minute pressure drop. The non-uniform production profile across the horizontal hole especially in the highly heterogeneous and fractured reservoirs can result in premature water production, bypassed oil and lower ultimate recovery. The problem was identified through production logging of several horizontal wells, which indicated a non-uniform production profile across the horizontal holes. The successful implementation of this technology was achieved by the use of an integrated approach to select the appropriate technology and method for addressing the problem. A business case was developed at which all key factors comprised a successful completion strategy in both drilling of a new well and work-over of an existing well. Among these key factors the development of multidisciplinary team; matching a good intervention candidate well with the appropriate technology; properly designing the well segmentation and execution of the design with rigorous quality control. A case history will be presented where this new production technology, has resulted in significant Net Present Value (NPV), and improved production via an extended well-life cycle. The ICD Equalizer system was installed in one new and an existing well with the aim to evaluate the viability of the technique. Both installations were successful and the preliminary surface testing results of the wells performance on different rates indicated a niform production profile across the horizontal hole and a drop in the existing well water cut (from 7% to traces). Although the new well has penetrated fractures as expected, the well did not show water production since installation (Febrauary 2007) till the time of writing this paper. With field-scale implementation, the economic analysis revealed an improved NPV and an incremental recovery factor increase about 1%. |
