2D Seismic And Petrophysical Interpretation Of Choti_01 Well In Middle Indus Basin, Pakistan

Abstract

Choti 01 is located in Punjab province, in the district of Dera Ghazi Khan, and is part of the Sulaiman depression of the Middle Indus Basin, which has monoclinal features. The following study combines seismic and well log data methodology to evaluate hydrocarbon potential. Making the TD chart with Choti-01 well tops identified the objective horizons. The available stacking velocities on the seismic sections are used to convert time to depth. The Monoclinal structure has become shallower in the east and deeper in the west. The reservoir rocks are the Late Eocene Sui Main Limestone and the Early Paleocene Dunghan Formation. The Eocene shale of Ghazij acts as a regional seal. The Sui Main Limestone, which is Eocene in age, was the research area's main formation. The presence of a Monocline from east to west has been confirmed by two-way time and depth contour maps generated as a results of interpretation. For formation evaluation and possible hydrocarbon bearing zones, a petrophysical investigation is performed on the well Choti-01. On logs, just one zone, the Sui Main Limestone of 50 m thickness, has been recognised. Through the results of petrophysical analysis, is very promising for hydrocarbon potential., an average hydrocarbon saturation of 31.6 percent, and water saturation of 68.3 percent. This well is abandoned due to tight effective porosities and high water saturation in the zones.