Gravity and Magnetic Survey Application on Oil and Gas Exploration in Zhongmu Depression
Abstract: During the whole process of oil and gas exploration, gravity and magnetic survey is an effective exploration method in dividing faults and tectonic units, finding out stratum structure, the distribution of volcanic rocks with magnetic property, realizing the condition of oil and gas resources producing, storage, migration and preservation and delineation for target areas. The author hackles the exploration achievements by gravity and magnetic survey in Zhongmu depression and hopes to provide reference for next exploration arrangement. Based on the application for gravity and magnetic survey in the Zhongmu depression, four first-order tectonic units and eight second- order tectonic units are divided in this area. And the conclusions are drawn as follows: boundary faults of Zhoumu depression with strike-slip and pull apart play an important role in Zhongmu depression formation. The depocenter of Zhongmu depression migrated southwards from Mesozoic to early Paleogene. There are faults in the south overlap in the north in the southern sag. And it is deeper in the west and shallower in the east. The tectonic evolution can be divided into three stages: developing stage in Jurassic, faulted period in early Paleogene, depression period in late Paleogene and Quaternary. Favorable section of oil and gas exploration is Baishafault terrace which can be ranked as the priority target. After a breakthrough drilling exploration can be put into effect in the south high spot of Guanchang tectonic belt.
文章引用: 高树静 , 何秦娥 , 王丽 , 胡少虎 , 卢琳 (2017) 重磁勘探在中牟凹陷油气勘查中的应用。 地球科学前沿， 7， 470-486. doi: 10.12677/AG.2017.73050
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