Proactive Geosteering in Thin Reservoirs and Zones
The wellbore was landed by the client’s geologist to ensure optimal landing in the zone. The resistivity was very low at the edge of the clinoform or the landing point. The formation porosity was low and the thickness was 3-4 metre. Utilizing AziTrak tool’s APR signals and DTBB, Proactive Geosteering, the wellbore position was optimized in the porous interval of target zone. The resistivity data indicated that the reservoir facies quality was improved in the clinoform. Approaching further with lateral extent, the reservoir quality deteriorates at the edged of the clinoform with reduction in porosity and resistivity. The DTBB analysis showed the good quality reservoirs was pinched out towards well TD with increase in argillaceous material.