GeoSphere Service Eliminates Pilot Hole by Precisely Mapping Reservoir Boundaries, Onshore Southeast Asia
Published: 10/06/2016
GeoSphere Service Eliminates Pilot Hole by Precisely Mapping Reservoir Boundaries, Onshore Southeast Asia
Published: 10/06/2016
In addition to the GeoSphere service, the PeriScope service was used to improve positioning and maintain the lateral section just below the reservoir top.
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.
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