GeoSphere Service Eliminates Pilot Hole by Precisely Mapping Reservoir Boundaries, Onshore Southeast Asia | SLB
Tech Report
Details

Southeast Asia
Onshore

Formation type
High-pressure overburden shale
 
Reservoir type
1.5-m TVD above reservoir top
 
Well landing
3 5/8 in
 
Lateral placement
3- to 5-m TVD below reservoir top
 
Target reservoir relative density
1.01 - 1.06 sg
 
Overlying formation relative density
1.25 - 1.4 sg

Background
An operator drilling in Southeast Asia required real-time imaging of cemented stringers in an overlying formation to prevent a false landing. Critical objectives included achieving a smoother hole, increasing ROP, and reaching the required dogleg severity. With no offset wells for reference, the operator precisely mapped the formation and adjusted the well trajectory to land 1.5-m TVD above the top of the target reservoir, eliminating the need for a pilot hole.

GeoSphere Service Eliminates Pilot Hole by Precisely Mapping Reservoir Boundaries, Onshore Southeast Asia

Reservoir mapping technology enables proactive steering and better trajectory control to land well 1.5-m TVD above reservoir top

 
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In addition to the GeoSphere service, the PeriScope service was used to improve positioning and maintain the lateral section just below the reservoir top.

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