Improved Reservoir Understanding in the Equinor Mariner Field through Integrated
Interpretation of Inflow and Inter-well Tracer Data

Inflow and Inter-well tracer technology have been extensively used in Mariner field for diverse production and reservoir monitoring objectives. This project presents several case studies to illustrate the value of tracer data during the early field production. An integrated inflow and inter-well tracer interpretation approach is applied to achieve high-resolution reservoir information. Additionally, comparison between the tracer results and other available data is discussed.
The Mariner field, located on the UK continental shelf, is a complex heavy oil development characterised by 2 shallow reservoirs: Maureen and Heimdal with the oil viscosity ranging from 50-500 cp at reservoir condition. Premature water breakthrough followed by rapid water cut increase, uncertainty in distribution and connectivity of sands, as well as uncertainty in aquifer support and communication between injectors and producers are some of the challenges requiring better understanding and management through data acquisition.
This paper presents the following three cases and will describe the role of tracer data in developing better understanding about the well and reservoir performance:
* Case 1: Delineating the main flow paths in the reservoir.
* Case 2: Optimisation of an acid stimulation strategy
* Case 3: Developing a Selective Inflow Performance (SIP) curve during a Multi-Rate Test (MRT)

Ross Philipp
Reservoir & Well Technology Engineer

Resman Energy Technology

Ross is a petroleum engineer with 6 years of international oil and gas experience. He has a BSc in Petroleum Engineering from the Colorado School of Mines in Colorado, USA, graduating in 2017. He joined Shell as a graduate Reservoir Engineer and then spent a further 4 years as a Well Intervention Field Engineer for SLB in Qatar with a specialty in fiberoptics technology. He has held several client facing roles within SLB in the Middle East and UK. He shifted back to the sub-surface world joining RESMAN Energy Technology in Aberdeen, Scotland-UK, as a senior well technology engineer in 2023 where he is currently based.