During the past few decades, drilling technologies have evolved from drilling vertical wells to complex horizontal wells. Although vertical wells are still being used in the industry as observation, evaluation or pilot wells. When it comes to developing oil and gas fields and maximizing reservoir contact to enhance production, the industry relies on horizontal wells. With the advancement in drilling tools and formation evaluation technologies, well placement industry has also flourished. With these advance tools, well placement (Geosteering) entered a new spectrum where thin reservoirs can be targeted for extended lateral section with a very high percentage of reservoir contact in the best fluid saturation horizon. The objective of this extended abstract is to highlight the geosteering impact on developing oil and gas fields Saudi Aramco.


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