Comparative study and discussion of diagenetic facies and conductivity characteristics based on experiments | |
Zhou, Xueqing1,2; Zhang, Zhansong1; Zhang, Chaomo1 | |
刊名 | ROYAL SOCIETY OPEN SCIENCE |
2022-02-16 | |
卷号 | 9期号:2页码:23 |
关键词 | diagenesis water saturation conductivity characteristics rock core experiments electrical properties |
ISSN号 | 2054-5703 |
DOI | 10.1098/rsos.202122 |
通讯作者 | Zhang, Zhansong |
英文摘要 | The study of conduction mechanisms is the key to establishing physical derivations, resistivity simulations and saturation models. The purpose of this research is to clarify conduction mechanisms under different diagenetic facies and build suitable saturation evaluation models. Experimental data of tight gas sandstone from the Ordos Basin were analysed, including data from scanning electron microscopy, conventional core physical property analysis, core casting thin-section analysis, core mercury intrusion experimentation and rock electrical conductivity experimentation. Accordingly, the diagenetic minerals of the study block were examined, and the diagenetic facies were classified by the differences in the diagenetic properties across the study area. The reservoir was divided into three types of diagenetic facies: construction facies, cementation facies and destruction facies. On this basis, the conductivity characteristics and saturation models of different diagenetic facies within the study area were systematically discussed for the first time. A number of experiments showed that according to the type of diagenesis, the structure of the pores and the influence of the reservoir, a classification scheme for diagenetic facies (consisting of construction, cementation and destruction facies) can be established. According to the influence of the diagenesis of various diagenetic facies, theoretical pore structure models of the three diagenetic facies were established, in which the construction facies includes mainly dissolved feldspar pores and intergranular pores, the destruction facies includes clay residual intergranular pores and intergranular pores, and the cementation facies includes primarily residual intergranular pores. Based on these theoretical pore structure models, the construction facies was evaluated with a pore-connected vuggy conductivity model, the destruction facies was evaluated with a non-connected matrix pore conductivity model, and the cementation facies was evaluated with a residual intergranular pore conductivity model. Then, the rationality of each model and the effects of the parameters in each model on the final cementation exponent were analysed by simulation. The predicted cementation exponents of the diagenetic facies match the measured cementation exponents well and can guide the qualitative description of these characteristics in such reservoirs. |
资助项目 | National Natural Science Foundation of China[41404084] ; National Natural Science Foundation of China[41504094] ; Natural Science Foundation of Hubei Province[2013CFB396] ; National Science and Technology Major Project[2017ZX05032003-005] ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education[K2021-08] ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education[K2021-03] ; Excellent Doctoral and Master's Degree Thesis Cultivation Program |
WOS关键词 | SATURATION EVALUATION METHOD ; RESERVOIR ; PREDICTION ; FIELD ; PERMEABILITY ; BASIN ; GAS ; POROSITY |
WOS研究方向 | Science & Technology - Other Topics |
语种 | 英语 |
出版者 | ROYAL SOC |
WOS记录号 | WOS:000755515500004 |
资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Hubei Province ; National Science and Technology Major Project ; Open Fund of Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education ; Excellent Doctoral and Master's Degree Thesis Cultivation Program |
内容类型 | 期刊论文 |
源URL | [http://ir.idsse.ac.cn/handle/183446/9315] |
专题 | 深海科学研究部_深海地球物理与资源研究室 |
通讯作者 | Zhang, Zhansong |
作者单位 | 1.Minist Educ, Key Lab Explorat Technol Oil & Gas Resources, Wuhan 430100, Peoples R China 2.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Xueqing,Zhang, Zhansong,Zhang, Chaomo. Comparative study and discussion of diagenetic facies and conductivity characteristics based on experiments[J]. ROYAL SOCIETY OPEN SCIENCE,2022,9(2):23. |
APA | Zhou, Xueqing,Zhang, Zhansong,&Zhang, Chaomo.(2022).Comparative study and discussion of diagenetic facies and conductivity characteristics based on experiments.ROYAL SOCIETY OPEN SCIENCE,9(2),23. |
MLA | Zhou, Xueqing,et al."Comparative study and discussion of diagenetic facies and conductivity characteristics based on experiments".ROYAL SOCIETY OPEN SCIENCE 9.2(2022):23. |
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