Real-time multi-lateral wellbore positioning of horizontal wells for improved reservoir deliverability has been a revolutionary breakthrough worldwide. It has supported the efficient production of hydrocarbons from multiple thin layers within a reservoir to yield maximum recovery and to restrict water coning. Recent advances in real-time geosteering now enable, with even greater precision, successful targeting of "sweet spots" within a reservoir. These advances have the capability to open still more drainage volume for recovery of hydrocarbons.

Through successful teamwork from multidisciplinary professionals, numerous uncertainties and challenges were overcome using real-time geosteering techniques in conjunction with advanced logging-while-drilling (LWD) sensors and instrumented rotary steerable systems in Kuwait Oil Company's Magwa field. For this purpose, pre-well modeling, real-time geosteering, advanced LWD sensors, including azimuthal deep resistivity (ADR™) sensor, an azimuthal lithodensity (ALD™) sensor, instrumented rotary steerable systems (RSS), and real-time operation (RTO) services were used. The historically anticipated production rate was surpassed through the optimized placement of this well.

The outcome of this particular dual-lateral well using advanced real-time geosteering technology has led to development plans for additional multi-lateral wells in Kuwait. They will be targeted to the highest porosity and permeability zones within the upper compartments of the reservoir while avoiding the adverse water coning effects of wells drilled vertically or in the massive sand. This paper reviews the teamwork and deployment of real-time geosteering operations, as well as new generation LWD and RSS sensors, used to successfully improve reservoir deliverability.

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