1. 3D- STRUCTURAL MAP implementing a fictive topographic surface: the well-topography built-up by the iso-TVDSS curves implementing a fictive topographic surface: the well-topography built-up by the iso-TVDSS curves Abdelkader Saadallah Dr. Structural Geologist Kampensgate 34 4024 Stavanger Norway Tlf. 00 47 51 53 83 82 E-mail: abdelk-s@online.no September 1999

2. n 3D-Structural model of a field n A tool to predict well path of a new drill PURPOSES Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no

3. n Plotting the well tracks n Plotting the TVDSS curves n Defining a topographic surface: well-topography n Drawing the well-topography 3D-Dimension: TVDSS Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no

4. Iso-TVDSS curves Well-track & MD Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no -7600 -7610 -7620 -7630 -7640 -7650 -7660 -7670 -7590 ft

5. n Stratigraphic break-downs n Faults n Dips n... Adding geologic and structural data Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no

6. Iso-TVDSS curves Well-track & MD Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no Geologic Units Unit 1 Unit 2 Unit 3 Unit 4

7. n Drawing the geologic boundaries n Interpolation between the well- tracks Finishing the structural map Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no

8. Iso-TVDSS curves Well-track & MD Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no

9. True dip of a geologic boundary Projection of the geologic boundary Projection of the iso-TVDSS planes Tg  h / d h d  DRAWING GEOLOGIC CONTACTS ON THE MAP Projection on a vertical plane perpendicular to the strike of the geologic boundary Projection on the map Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no Geologic contact on the map

10. n First draft and choice of kick- offs n Defining a survey log n Plotting the predict well-track n Last finish Predicting a well-path of a new drill Abdelkader Saadallah Dr. Structural Geologist E-mail: abdelk-s@online.no