What question did this study set out to answer?

To evaluate the application of advanced geosteering and real-time logging-while-drilling technologies for precise horizontal well placement within narrow, sub-meter target zones in an Ordovician clastic reservoir.

April 21, 2025

Challenges on Well Placement in Thin Layers Targets in Central Oman, Rub Al Khali Basin

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To evaluate the application of advanced geosteering and real-time logging-while-drilling technologies for precise horizontal well placement within narrow, sub-meter target zones in an Ordovician clastic reservoir.
Integrated real-time geosteering software with logging-while-drilling (LWD) triple combo and azimuthal resistivity measurements to track reservoir boundaries and prevent roof penetration.
Evaluated directional drilling performance across two wells: a sidetrack redrill targeting an abandoned collapsed wellbore and a new 3D trajectory well designed to manage wellbore instability.
The sidetrack well achieved 605 meters of continuous pay zone, replacing an initial collapsed well that contacted only 150 meters of pay before intersecting overlying shale.
The 3D trajectory well successfully navigated severe borehole stability constraints, intersecting 973 meters of continuous oil-saturated sandstone pay zone and substantially increasing field production.

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Implication

Technical evaluation demonstrates successful real-time geosteering within thin clastic reservoirs, indicating advanced azimuthal measurements maximize horizontal pay zone exposure.

Cite This Study

Ghabshi et al. (2025) studied this question.

synapsesocial.com/papers/69dbde27498b35d3e6a3d610 https://doi.org/10.2118/224615-ms

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Implication

Technical evaluation demonstrates successful real-time geosteering within thin clastic reservoirs, indicating advanced azimuthal measurements maximize horizontal pay zone exposure.

Challenges on Well Placement in Thin Layers Targets in Central Oman, Rub Al Khali Basin

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Discussion

Implication

Cite This Study

Challenges on Well Placement in Thin Layers Targets in Central Oman, Rub Al Khali Basin

Key Points

Discussion

Implication

Cite This Study

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