Novel Tool of In-Bit Measurement for New Clean Geo-Energy Exploitation

Abstract

With the global economy and industry development, environment-friendly and sustainable development have become the mainstream of energy exploration and utilization. However, due to the complex downhole environment, the rate of penetration increment is becoming an urgent need for the new clean geo-energy exploitation. As the direct actuator of rock breaking, the dynamic response of drilling bit is the embodiment of the relationship among drilling parameters, formation characteristics, and drilling string structures. The acquisition and mining of drilling bit’s dynamic response is the key to coordinate the game relation of drilling efficiency, economic benefit and risk control, and to lay the foundation of optimized drilling and ROP increment. In this paper, based on a series of researches on sensor array designing, hydraulic structure optimization, and data reckoning method, a new type of in-bit measurement tool was proposed for new clean geo-energy exploitation. The functionality and reliability of the novel tool were also proved by a field application in a shale gas development project.