Application of a Multidisciplinary Workflow in a Mature Oil Field, Mann Field, Myanmar

摘要

Mann Field is located in the Salin sub-basin of the central basin of Myanmar (Burma) in Southeast Asia. The field began producing in 1970 predominately from the Oligocene reservoirs. More than 650 wells have been drilled and completed, 106 million stock tank barrels of oil produced, with over 100 million barrels of water injected in an early secondary recovery project. Reservoir management and redevelopment became the focus in 1998. With this redevelopment effort and due to the incredible complexity of the reservoir system (～20 producing intervals in a tectonically active area), the need for a complete multidisciplinary integrated characterization of the field became necessary to maximize economic reserve recovery. The first step into systematically developing a multidisciplinary workflow is to inventory various data. A significant amount of 3D seismic had been run across the field, likewise core and outcrop information was available. A variety of engineering data including production, injection, drilling, completions, etc, was also available. However, little of the data was integrated into a full reservoir picture and significant amounts were not being used to their full potential. This paper describes the development of a field management philosophy for a mature (brown) field that incorporates the enormous amount of available data in this field with significant remaining reserves. The company management philosophy includes all areas of development from the utilization of the strong technical staff through the full exploitation of the available data set. The use of outside consulting and training is included to take advantage of technological advancements since the field was originally developed. The need to breakdown the traditional barriers between disciplines is also demonstrated. Building trust, communication, and a working knowledge of all involved disciplines is critical for exploiting Mann Field to its full potential.