الفهرس | Only 14 pages are availabe for public view |
Abstract Nukhul Formation contains biodegraded heavy oil at Lagia Field, and consists of five sandstone lobes that are interbedded with mudstones. All lobes deeper than the first lobe have been truncated up dip or faulted out and are not present. The sandstones are typically fine to medium grained and well cemented with calcareous cement. The structural contour map shown in Figure 2 displays TWTT contours, drawn at the top of the Nukhul Formation. Reservoirs penetrated by Lagia 3, 5, 6 and 7 wells are bounded on the east and south by faults that are assumed to be sealing. An oil column overlain by gas and underlain by water is assumed to extend along strike from the fault on the south until it is cut by the northwest trending fault. The structural dip within this area is about 7.5 degrees to the southwest. We will explain the distribution of petrophysical parameters (shale, porosity, water saturation ,hydrocarbon saturation) of Lagia field through isoparametric maps . The shale distribution map illustrate the horizontal distribution of shale in the study area it show that, the shale has minimum value at south direction of the map where maximum value is represented in north east directions. The total porosity distribution map reveals a gradual increase toward south direction of the map where maximum value in Lagia-7. While it decreases to west direction. |