Ant-tracking structural attribute: A model for understanding production response

World Congress on Quantum Physics - November 24-25, 2022 | Webinar

November 24-25, 2022 | Webinar

Prince Suka Momta

University of Port Harcourt, Nigeria

Scientific Tracks Abstracts: J Laser Opt Photonics

Abstract :

Ant Tracking seismic attribute applied over 4-seconds seismic volume revealed structural features triggered by clay diapirism, growth fault development, rapid deltaic sedimentation and intense drilling. The attribute was extracted on vertical seismic sections and time slices. Mega tectonic structures such as growth faults and clay diapirs are visible on vertical sections with obscured minor lineaments or fractures. Fractures are distinctively visible on time slices yielding recognizable patterns corroborating established geologic models. This model seismic attribute enabled the understanding of fluid flow characteristics and production responses. Three structural patterns recognized in the field include: major growth faults, minor faults or lineaments and network of fractures. Three growth faults mapped on seismic section form major deformation bands delimiting the area into three blocks or depocenters. The growth faults trend E-W, dip down-to-south in the basin direction, and cut across the study area. The faults initiating from about 2000ms extended up to 500ms, and tend to progress parallel and opposite to the growth direction of an upsurging diapiric structure. The diapiric structures form the major deformational bands originating from great depths (below 2000ms) and rising to about 1200ms where series of sedimentary layers onlapped and pinchout stratigraphically against the diapir. Several other secondary faults or lineaments that form parallel streaks to one another also accompanied the growth faults. The fracture networks have no particular trend but form a network surrounding the well area. Faults identified in the study area have potentials for structural hydrocarbon traps whereas the presence of fractures created a fractured-reservoir condition that enhanced rapid fluid flow especially water. High aquifer flow potential aided by possible fracture permeability resulted in rapid decline in oil rate. Through the application of Ant Tracking attribute it is possible to obtain detailed interpretation of structures that can have direct influence on oil and gas production.

Biography :

Prince Suka Momta has over fourteen years of experience in the practice of Petroleum Geology. He has worked on several onshore, swamp and offshore platforms executing formation evaluation and drilling projects for different multinational E & P companies (SHELL, TOTAL, AGIP, CONOIL). He served as Supervisor of SPDC (SHELL) Geological Core Storage Facility, Port Harcourt, Senior Exploration/Development Geologist with Belemaoil, and as Lead Sedimentologist & Stratigrapher/Seismologist on several exploration and field development projects undertaken by Nubian Petroleum Consulting Ltd for Nigeria Agip Oil Company, Chevron Nigeria Limited, Eroton Exploration & Production, and Newcross Exploration & Production Ltd. His expertise in the oil and gas industry covers regional geological studies/hydrocarbon play analysis, prospect evaluation, and integrated field development studies. He consults for PETRODRILL Global Concept Ltd (Africa, Middle East) as Head of Exploration & Production, fronting the Hydroscan, Electrokinetic Pore-fluid Mixer (EPM) and satellite-borne NMR technologies. He has a doctorate and masters degrees in Petroleum Geology from the University of Port Harcourt, and bachelor degree in Geology from the University of Calabar, Nigeria. He has supervised over twenty-five (25) undergraduate university/postgraduate diploma students of Petroleum Geosciences, published fifteen (15) articles in reputable peer-reviewed international journals with two (2) book chapters, a co-author, presented technical papers in both local and international conferences. He presently seats on the editorial board of several international journals and serving as a Volunteer Industry Mentor to the Nigerian Association of Petroleum Explorationists supervising and training undergraduate students from various universities across Nigeria. He is a Visiting Lecturer to the Department of Geology, Anambra State University, Uli Campus, Nigeria, and Department of Chemical/Petrochemical Engineering, Kenule Beeson Saro-Wiwa Polytechnic, Bori, Nigeria.