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February 2020 SPE-SA Technical Luncheon
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Description
Abstract:
Several injection techniques have been used to sweep oil toward the production wells and maintain reservoir pressure to improve the recovery. However, the history of injection wells applications indicates a significant number of failures either in losing injectivity or in being unable to achieve the desired conformance for the injected fluids. Several techniques including using outflow control devices (OCDs) have been successful in several applications. However, the devices may not be of great interest if applied in the formations with severe heterogeneities including natural or thermal fractures in both carbonated and sandstone formations. The high contrast in the injectivity of the section with fractures compared to the rest of the well causes delivery of a great portion of the injected water into that thief zone thus creating short-circuit to the nearby producer wells. A new autonomous device is developed to control the injection fluid into natural/propagated fractures crossing the well thus eliminating the current intervention practices. This paper will present an overview of the product development with flow loop testing and demonstrates its benefit by dynamic reservoir modelling. This paper also will describe the design consideration of any potential adverse effect of this injection valve such as plugging, reliability and erosion.
Biography:
Mojtaba Moradi received his BSc and MSc degrees in Iran and his PhD in Petroleum Engineering from Heriot-Watt University, UK. He has more than seven years’ experience as a petroleum engineer. He also taught several petroleum and chemical engineering courses at Heriot-Watt University (UK) and Azad University (Iran). Prior to Tendeka, he was involved in various projects from unconventional reservoirs, intelligent wells to CO2 storage and CO2-WAG EOR. Mojtaba has published more than 20 technical papers.
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