Integrated Technology of Early Kick Detection for Offshore Deep-Water Drilling

The prevention and control of kick or blowout for offshore deep-water drilling is a major issue facing the offshore oil and gas development. The effective means is the kick early detection technology, and respond in a timely manner. The key lies in the monitoring of kick. Based on this, this article analyzed the main difficulties facing well control problem in deep-water drilling, due to factors such as water depth, low temperature environment, changes in mud performance, and narrow safety density window, which cause increased difficulty in well control. The characteristics of existing kick detection methods for deep-water drilling were contrasted and analyzed systematically, and indicated the development direction of being able to detect overflow earlier, more accurately, and intelligently of kick detection technology for deep-water drilling. By analyzing the well control difficulties of deepwater drilling and the adaptability of overflow monitoring methods, designed a core technology system of kick integrated detection for deep-water drilling, and analyzed the working principle of this system, the systemic method with borehole monitoring as the core, ocean floor and platform. monitoring method as auxiliary have been formed. This method not only can be used in kick early detection, but also can be used in comprehensive monitoring during kick-killing and accurate control down-hole pressure. This paper have been pointed out the research direction of kick detection technology for offshore deep-water drilling, it has very important practical significance.