First Integrated Inflow Tracer Application in A Long Horizontal Well
Ekofisk is the oldest oilfield in the Norwegian North Sea on the Norwegian Continental Shelf (NCS). It is 300 kilometers (about 186.41 miles) southwest of Stavanger and 3,000 meters (about 9,840 feet) below the seabed. Ekofisk has been an important economic driver for the whole of Norway since coming onstream in 1971, with over three billion barrels of oil produced since then. With its large reserves, it has been in production for over 50 years after its discovery.
Novel Application of Inflow Tracers for Assessing 1 -mD Reservoir
Extended Reach Drilling (ERD) is a technology for drilling long directional wells to reach deep underground oil or natural gas deposits. These wells require specialized planning and management, and they are costly and technically challenging. Due to inherent limitations of intervention accessibility, our client needed an efficient method to monitor inflow along the deepest 5,000 feet (about 1.52 kilometers) of 45,000 feet (about 13.72 kilometers) well, ranked 5th worldwide at the time of the project to complement the existing intervention-based production logging technology.
Combining Tracers, 4D Seismic and Production Data to Understand Reservoir Fluid Dynamics
Snorre is a large oil and gas field discovered in 1979 at a water depth of 300-350 kilometers (980 to 1,150 feet), located approximately 200 kilometers (about 124.27 miles) west of Floro in the Tampen area of the Norwegian North Sea, Norway. It has some of the largest remaining reserves in the region. It is of strategic importance for creating long-term value and activity on the Norwegian Continental Shelf (NCS).
Successfully Implementing a New Class of Inter-Well Chemical Tracers
Enhanced Recovery (EOR) methods typically require non-standard enhanced oil recovery technologies for recovering additional oil, and they are essential for supporting long-term stable production. However, applying these methods is challenging, particularly in mature reservoirs that are already partially depleted, and it largely depends on the amount of remaining oil that could be mobilized within the targeted area.
Cost-Efficient Offshore Reservoir Management and Monitoring with Tracer Technology
A significant proportion of the world's oil reserves are found in multi-layered reservoirs which have complex structures. The operator was looking for recovery improvement through new EOR methods for monitoring a complex multi-layered reservoir with early-stage water injection.
Inter-Well Gas Tracer Test for EOR Monitoring in a Pilot Project
Inter-well Enhanced Oil Recovery (EOR) monitoring projects involve the systematic evaluation and optimization of recovery processes in the context of multiple wells within a reservoir. Tracer technology is commonly used to track fluid movement between wells. Tracer technology has evolved significantly, and it is increasingly used as an effective monitoring and surveillance (M&S) tool in the oil and gas industry, either as inter-well tests or single-well tests. It is used as a successful method to investigate reservoir connectivity and flow performance, measure residual oil saturation and determine reservoir properties that control displacement processes.
CO2 Capture and Storage for Enhanced Gas Recovery
Carbon capture, utilization and storage (CCUS) involves capturing CO2 at industrial facilities, re-using it or storing it to prevent leaks back into the atmosphere. K12-B is the first site in the world where CO2 was injected into the same reservoir where it was produced at a depth of about 4000 meters (about 2.49 miles) in a mature gas field. The main objective was to investigate the feasibility of CO2 injection and storage in depleted natural gas fields on the Dutch continental shelf. As a part of the CRUST project launched by the Dutch government in 2002, it aims to make an inventory of possible sequestration sites to study possibilities as well as legal and environmental aspects for CO2 re-use.
CO2 Storage in Complex Gas Fields
In Salah field is a joint venture between Sonatrach and BP and it presents the world’s pioneering onshore CO2 capture and storage project. It is a complex conventional gas field containing large reserves with an estimated economic limit in 2063. It processes natural gas from three gas fields in the area. Captured CO2 is separated and injected underground in the 1.9 kilometers deep Carboniferous sandstone unit at the Krechba field.
Using Chemical Tracers for Identifying Completion Equipment Failure
A subsea well in the Gulf of Mexico was completed with two zones. The two zones contained sliding sleeves for the purpose of closing off one zone in case of early water breakthroughs. The customer’s goal was to gain an in-depth understanding of the harsh downhole environment to identify completion equipment failure.