Halliburton Co. has introduced 3D reservoir mapping, a logging-while-drilling (LWD) capability that is said to provide a detailed representation of subsurface structures to improve well placement in complex reservoirs.
3D inversion, an advanced reservoir mapping process, reveals overlooked features such as faults, water zones, or local structural variations that can alter the optimal landing trajectory of a well. In geosteering applications, the technology maximizes contact with oil and gas zones while mapping the surrounding formation to identify bypassed oil, avoid drilling hazards, and plan for future development, the company said.
The 3D capability originates from downhole measurements taken by the EarthStar ultra-deep resistivity service, an LWD sensor that identifies reservoir and fluid boundaries up to 225 ft (69 m) from the wellbore. According to Halliburton, this range more than doubles the depth of detection of other industry offerings.
An operator in the North Sea recently deployed the 3D capability in a field with a long history of production and water injection. The company said the data allowed the operator to better assess the movement of reservoir fluids and visualize fault boundaries, which supported more accurate well placement and increased production.