关键词: 海上, 高温高压, 深水, 油气勘探, 全生命周期, 管理创新, 多维度, 大数据

Abstract: Facing the continual downturn of international oil price and increasingly complex geological conditions in the western part of the South China Sea, CNOOC China Ltd - Zhanjiang Company made innovations in full life cycle management of exploration targets “oriented at exploration value”. The research led to a “multiple-dimension” exploration target study QC system with quality control and examination at three levels. Quality control over well position study covers 30 items in five groups, bringing about standardization and institutionalization of exploration target management. The company also came up with the “big data” close-loop management conception on full life cycle of exploration targets. The data model of exploration and development is integrated by means of establishing the basis databank of exploration targets and the databank of expert examination, realizing exploration target management and informationization of decisionmaking process. Based on the research, the company developed the quantitative management models, such as the integrated reserve method for optimization of exploration targets and the “probability method” of expert assessment, and established the managerial decision-making model of the “best solution” to exploration deployment, thus bringing the best-to-bedrilled target assemblage and exploration deployment under management. The above-stated management innovations have been successfully used in the oilfields in the western South China Sea. They effectively benefited exploration decisions and deployment and dramatically improved oil and gas exploration efficiency. A total of 3000×108m3 natural gas reserve has been found in the high-temperature and high-pressure deepwater area of the South China Sea in recent years, where the conditions were mature for construction of a large gas zone with the production capacity reaching one trillion cubic meters.