致密储层多尺度一体化表征技术研究
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1.Application of rock brittleness evaluation in tight oil exploration - - Taking Lijiaweizi Fault Depression in Qijia Area as an Example
- 关键词:
- Elasticity;Plasticity;Forecasting;Rocks;Brittleness;Poisson ratio;Fracture mechanics;Petroleum prospecting;Parameter estimation;Anti-jamming capability;Coefficient of utilizations;Earthquake prediction;Elastic parameters;Fracture network;Rock brittleness;Seismic inversion;Unconventional oil and gas
- Zeqiang, Wang;Yunfeng, Zhang;Bo, Sun
- 《2nd International Conference on Environmental Prevention and Pollution Control Technologies, EPPCT 2020》
- 2020年
- January 10, 2020 - January 12, 2020
- Sanya, China
- 会议
Brittle rock is one of the key factors in the use of unconventional oil and gas exploration technology to be considered, The stronger the brittleness of rock is, the easier to produce fractures to form fracture network in the over flushing of fracturing, the stock of oil and gas storage layer will be increased, and the production of single well will be increased. At present mainly based on rock elastic parameters, we use Young's modulus and Poisson's ratio of two ways to analyze brittle rock in earthquake prediction evaluation. However, since these two methods in the process, both the need for elastic parameters of rock normalized, leading to large errors, adaptability reduce. Based on this, we propose a Young's modulus and Poisson's ratio coefficient of utilization of compared to the brittle rock evaluation method to effectively improve the accuracy of prediction and evaluation of brittle rock and anti-jamming capability, while the brittle evaluation method based on the use of pre-stack seismic inversion of elastic parameters to Qijia area of Songliao basin compact oil brittle rock predict deployment guidance wells to obtain stable high level of industrial oil flow.
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© Published under licence by IOP Publishing Ltd.2.Study on the lithofacies of the second member of Tengger formation in Jiergalangtu of Erlian Basin
- 关键词:
- Well logging;Drilling data;Erlian Basin;Lithofacies;Micro-facies;Sedimentary characteristics;Sedimentary structure;Subaqueous distributary channels;Tectonic evolution
- Niu, Daming;Fu, Hang;Zhang, Yunfeng;Li, Yilin
- 《2020 2nd International Conference on Geoscience and Environmental Chemistry, ICGEC 2020》
- 2020年
- October 9, 2020 - October 11, 2020
- Tianjin, China
- 会议
Through analyzing coring well observation and in combination with drilling data log sheet and the analysis of the test data, combined with the regional sedimentary tectonic evolution background of the second member of Tengger formation in Jiergalangtu of Erlian basin, the results show that lithic arkose and feldspathic lithic sandstone are developed in the study area. There are abundant sedimentary structures, mainly including parallel bedding, laminated bedding and massive bedding, etc. According to the analysis of sedimentary characteristics, nine lithofacies types and four vertical assemblages are summarized, which respectively reflect different microfacies environments: subaqueous distributary channel subaqueous distributary channel interestuarine bar sheet sand. © The Authors, published by EDP Sciences, 2020.
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