摘要
微重力勘查是基于常规重力勘查技术而逐步发展起来的新型勘查方法技术,将在资源勘查、工程勘察、地质构造等方面发挥越来越重要的作用。通过徐州某磁铁矿以及克拉玛依某稠油钻采区的勘查实例,通过微重力数据采集和处理,分析总结微重力勘查获取的重力场和地质构造的基本特征、方法技术,为最大限度地获取接近真实的矿体空间展布特征以及油区的微断裂和微构造,明确稠油聚集有利条件以及为后续的油气开采提供真实可靠的数据支撑;研讨微重力勘查存在的主要技术问题及解决思路,展望微重力勘查的应用前景。
Microgravity survey is a new type of survey technology gradually developed based on conventional gravity survey technology,which will play an increasingly important role in resource survey,engineering survey and geological structure investigation.Through exploration case studies of a magnetite deposit in Xuzhou and a heavy oil drilling area in Karamay and on the basis of microgravity data collection and processing,the basic characteristics,methods and technologies of the gravity field and geological structure obtained by microgravity exploration were analyzed and summarized to make the acquisition as close as possible to the true spatial distribution characteristics of the orebody and micro-fractures and micro-structures in the oil field and clarify the favorable conditions for heavy oil accumulation and subsequent oil and gas exploitation so as to provide true and reliable data support.In addition,the authors discussed the main technical problems and solutions in microgravity exploration and predicted the application prospects of microgravity survey.
作者
王庆国
李英武
于淑莉
庞雨桐
WANG Qing-Guo;LI Ying-Wu;YU Shu-Li;PANG Yu-Tong(Shaanxi Geophysical and Mineral Exploration Party Co.,Ltd.,Xi'an 710043,China)
出处
《物探与化探》
CAS
北大核心
2020年第4期949-961,共13页
Geophysical and Geochemical Exploration
关键词
微重力勘查
高精度重力勘查
隐伏磁铁矿
基性—超基性岩脉
稠油富集有利区
microgravity survey
high-precision gravity survey
concealed magnetite
basic-ultrabasic veins
favorable area for heavy oil enrichment
