中国碳酸盐岩油气勘探与白云岩研究最新成果: 第17届全国古地理学及沉积学学术会议成果综述<sup>*</sup>

doi:10.7605/gdlxb.2024.02.041

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Abstract

This paper briefly describes the new achievements of oil and gas exploration in carbonates,deeply buried carbonate rocks,especially the genetic theory of dolomites at the 17th National Congress of Palaeogeography and Sedimentology. The relevant theme includes 55 oral presentations and 15 panels,which are related to(1)the genesis and reservoir of dolomite in Tarim,Sichuan,Ordos,Qaidam,Tuha and Bohai Bay basins,(2)formation,characteristics and preservation mechanism of deep and ultra-deep dolomite reservoirs,and(3)quantitative evaluation of bioliths and carbonate formation processes. It is worth recommending the study on the characteristics and genetic mechanism of high-quality,ultra-deep(10 km)dolomite reservoir,Exploration of the ultra-deep dolomite has become a representative result of the genetic theory of dolomite,guiding production practice. It is a supplement to the weak link in the application of basic research of dolomite genesis in the 21st International Sedimentology Congress(2022,Beijing)and in recent years. The summary of the characteristics and genetic mechanism of deep dolomite reservoirs in various parts of the Sichuan Basin comes from graduate students’ summary of the results of different university projects,which is very valuable. The theory of formation of deep dolomite reservoir,evaluation and exploration of high-quality ultra-deep dolomite reservoir is put forward. In particular,the laser ablation plasma mass spectrometry U-Pb dating technique has been widely used,which has realized the qualitative and quantitative analysis of the characteristics and genetic mechanism of dolomitization in geological time. The discussion of biolith is characteristic. They represent the close integration of sedimentology,lithofacies and paleogeography,mineralogy and petrology,new technology and dolomite genetic theory and practical application. The overall innovation depth,research means,system theory and application characteristics in oil and gas exploration deployment are significant,which is the highlight of this conference. Shortcomings are represented by the only one poster on marine reef dolomite. It is expected that the 18th Karamay Conference will further deepen the research in the above fields,and the topic of marine island dolomite research will be paid more attention.

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	Articles by authors
	XU Hong
	ZHANG Li
	CHEN Shu
	FU Heping
	HAN Chao
	MA Yazeng
	SU Dapeng

Key words： carbonate rocks-dolomites new achievements palaeogeography and sedimentology dolomites at 10000 m depth islands dolomite genetic mechanism

Received: 25 August 2023

ZTFLH:

P588.+5

Fund:

Co-funded by the National Natural Science Foundation of China(Nos.41872114,42130408), the National Science and Technology Basic Resources Survey Project(No.2017FY201407),the National Nansha Special Project 5 and the China Geological Survey Project(No. DD20230067)

Corresponding Authors: SU Dapeng,born in 1977,is a master and an engineer. He is mainly engaged in marine geology and sedimentary dynamics investigation and research. E-mail: wlmz_008@sina.com.

About author: XU Hong,born in 1957,is a Ph.D. and researcher. He is specialized in biogenic reef formation,oil and gas hydrate geological investigation and research. E-mail: qdxuhong@163.com. ZHANG Li,born in 1965,is a Ph.D. and professor level senior engineer. She is mainly engaged in the South China Sea reef genesis research,oil and gas geological investigation and exploration.zhangligmgs@qq.com.

Cite this article:

XU Hong,ZHANG Li,CHEN Shu et al. Recent achievements in carbonate oil and gas exploration and dolomite research in China: a summary of results of the 17th National Conference on Palaeogeography and Sedimentology[J]. JOPC, 2024, 26(2): 475-486.

URL:

http://www.gdlxb.cn/EN/10.7605/gdlxb.2024.02.041 OR http://www.gdlxb.cn/EN/Y2024/V26/I2/475

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