TECHNICAL PROBLEMS OF DEEP WELL DRILLING AND THEIR SYSTEMS ANALYSIS

According to the basic requests presented in scientific drilling for exploration and investigation today,together with the facts that is actually happening in deep drilling all over the world and the techniques developments in the recent 30 years,a new concept Complex Giant System Engineering on Deep Exploration Well Drilling(CGSE-DEWD) and a new idea Deep Drilling Techniques Systematization(DDTS) are put forward for the first time in China.Through the theoretical integration and extension of current deep drilling techniques systems,it is analyzed systematically that the technical problems of complexity and advanced nature,functionality and adaptability,centricity and suitablity are in couples occurred in deep drilling studies.Further,through the function integration on the methodology,adopting the method of the systemic analysis together with the systemic synthesis,as well as meta-synthesis method from qualitative to quantitative,the author puts forward an argument that be treating complexity of the deep drilling techniques systems as complexity,oversteping the chains of traditional theories,and preforming the new supports such as intelligence and knowledge systems,so as to establish an innovation system of complex deep drilling techniques systems,and to establish a decision-making analysis and evaluation system for deep drilling.