Petroleum engineering is a field of engineering concerned with the activities related to the production of hydrocarbons, which can be either crude oil or natural gas. wikipedia.org

Aspen HYSYS is a process modeling tool for conceptual design, optimization, business planning, asset management, and performance monitoring for oil & gas production, gas processing, petroleum refining, and air separation industries. wikipedia.org

The ISO 9000 family of standards relates to quality management systems and is designed to help organizations ensure they meet the needs of customers and other stakeholders. ISO 9000 deals with the fundamentals of quality management systems, including the eight management principles. wikipedia.org

Chemical engineering is the branch of engineering that deals with physical science and life sciences with mathematics and economics, to the process of converting raw materials or chemicals into more useful or valuable forms. wikipedia.org

Process engineering focuses on the design, operation, control, optimization and Intensification of chemical, physical, and biological processes. wikipedia.org