Cross-well electromagnetic investigation – EMI data modeling. Efremov field case study

Authors: А.V. Vitevsky, S.V. Valeev (RN-Yuganskneftegas LLC), G.V. Makarychev, Ye.A. Karpekin (Schlumberger Logelco Inc.)
Successful operation (high flowrates) of a future well is greatly dependent on selecting a correct target for sidetra cking. Application of a well logging tool that allows determining current saturation of the formation in the cross-well area enab les to reduce uncertainty in the process of sidetrack candidate selection. Cross-well electromagnetic investigation – EMI* is one of such tools that records distribution of electromagnetic properties of rocks in the cross-well area. In depositional environment of typical terrigenous sedimentary section of the Efremov field this method becomes an informative solution for selecting the areas for infill sidetrack drilling.
Successful operation (high flowrates) of a future well is greatly dependent on selecting a correct target for sidetra cking. Application of a well logging tool that allows determining current saturation of the formation in the cross-well area enab les to reduce uncertainty in the process of sidetrack candidate selection. Cross-well electromagnetic investigation – EMI* is one of such tools that records distribution of electromagnetic properties of rocks in the cross-well area. In depositional environment of typical terrigenous sedimentary section of the Efremov field this method becomes an informative solution for selecting the areas for infill sidetrack drilling.


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