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| 1 | Deployment and Exploration of a Gas Storage Well Pattern Based on the Threshold Radius显示文摘To tackle the problem that wells that are deployed in a specific pattern based on the requirements of gas reservoir development are not suitable for gas storage,we have conducted concentrically circular injection and production simulation experiments for gas storage,discovered the existence of a threshold radius,denoted by Rt,and derived the expression for Rt.Based on the analysis and discussion results,we propose a strategy for deploying gas storage wells in specific patterns.The expression for Rt shows that it is affected by factors such as the gas storage gas production/injection time,the upper pressure limit,the lower pressure limit,the bottomhole flow pressure at the ends of injection and production,the and permeability.The analysis and discussion results show that the Rt of a gas storage facility is much smaller than the Rt for gas reservoir development.In the gas storage facilities in China,the Rt for gas production is less than the Rt for the gas injection,and Rt increases with the difference in the operating pressure and with permeability K.Based on the characteristics of Rt,we propose three suggestions for gas storage well pattern deployment:(1)calculate Rt according to the designed functions of the gas storage facility and deploy the well pattern according to Rt;(2)deploy sparser,large-wellbore patterns in high-permeability areas and denser,small-wellbore patterns in high-permeability areas;and(3)achieve the gas injection well pattern by new drilling,and the gas production well pattern through a combination of the gas injection well pattern and old wells.By assessing a gas storage facility with a perfect well pattern after a number of adjustments,we found that the Rt of the 12 wells calculated in this paper is basically close to the corresponding actual radius,which validates our method.The results of this study provide a methodological basis for well pattern deployment in new gas storage construction. | TANG Ligen ZHU Weiyao ZHU Huayin SUN Chunhui YANG Fenglai WANG Yan Li Xiaorui Li Haiming CHU Guangzhen WANG Jieming KONG Debin YUE Ming LIU Yuwei HUANG Kun | 2021 | Acta Geologica Sinica(English Edition)2021，95，2： | 1 |
| 2 | Developing an efficient and visible prime editing system to restore tobacco 8-hydroxy-copalyl diphosphate gene for labdane diterpene Z-abienol biosynthesis显示文摘Prime editing(PE)is a versatile CRISPR-Cas based precise genome-editing platform widely used to introduce a range of possible base conversions in various organisms.However,no PE systems have been shown to induce heritable mutations in tobacco,nor in any other dicot.In this study,we generated an efficient PE system in tobacco that not only introduced heritable mutations,but also enabled anthocyanin-based reporter selection of transgene-free T_(1) plants.This system was used to confer Zabienol biosynthesis in the allotetraploid tobacco cultivar HHDJY by restoring a G>T conversion in the NtCPS2 gene.High levels of Z-abienol were detected in the leaves of homozygous T_(1) plants at two weeks after topping.This study describes an advance in PE systems and expands genome-editing toolbox in tobacco,even in dicots,for use in basic research and molecular breeding.And restoring biosynthesis of Z-abienol in tobacco might provide an efficient way to obtain Z-abienol in plants. | Jianduo Zhang Lu Zhang Chengwei Zhang Yongxing Yang Huayin Liu Lu Li Shengxue Zhang Xianggan Li Xinxiang Liu Ya Liu Jin Wang Guangyu Yang Qingyou Xia Weiguang Wang Jinxiao Yang | 2023 | Science China(Life Sciences)2023，66，12： | 1 |
| 3 | Design, synthesis and bioactivity of novel ALS inhibitors (V)显示文摘 | Guangfu Yang Guofeng Zhao Rongjian Lu Huayin Liu Huazheng Yang | 1998 | Science in China Series B: Chemistry1998，，4： | 1 |
| 4 | Bio-rational design of photosystem Ⅱ inhibitors (Ⅰ)──Molecular modeling of cyanoacrylates and ureas in photosystem Ⅱ D1 protein of Pisum sativum显示文摘Molecular modeling of cyanoacrylates and ureas with D1 protein of Pisum sativum have been presented. Studies show that these two kinds of inhibitors occupy the similar region in the D1 protein. Cyanoacrylates have more binding sites than ureas, thus they have higher activities. | LIU Huayin\+1, SHA Yinlin\+1, LU Rongjian\+1, YANG Huazheng\+ 1*and LAI Luhua\+2 1. Institute of Elemento_Organic Chemistry and State Key Laboratory of Elemento_Organic Chemistry, Nankai University, Tianjin 300071, China 2. Institute of Physical Chemis | 1998 | Chinese Science Bulletin1998，43，8： | 0 |
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