As a new area for exploration,the Bozhong M Structure covered deep buried hill is affected by geological and engineering factors.There are many difficulties in accurately identifying the buried hill interface,which seriously restrict the geological data acquisition and the safety of drilling projects.In order to solve this kind of the buried hill interface identification problem,the characteristics of buried hill in the study area are systematically summarized.Taking the sedimentary background as a critical condition for stratigraphic correlation,it has formed a three-level control system of"overall understanding of stratigraphic sequence+horizontal correlation of sedimentary characteristics+microscopic analysis of buried hill interface",and established a set of identification methods suitable for the interface of overburden deeply buried hill.The actual drilling verification of several wells shows that the buried hill interface identification method has a good application effect,provides reliable data support and evaluation basis,has a positive impact on the subsequent operation of the structure and the interface identification of other similar buried hill structures,and has good popularization value.
NETL
NSTL
维普
万方数据
