Chinese Academy of Sciences

Beijing Baidu Netcom Science Technology Co., Ltd

Research Institute of Highway Ministry of Transport

Beijing Aurasky Electronics Co., Ltd.

Beijing Orion Star Technology Co., Ltd.

Xiao Li

Zhaobin Zhang

Shouding Li

Jianming He

Bo Zheng

Guanfang Li

Tianqiao Mao

Feng Zhang

Qi Wang

Wei Zhou

Peng Guo

Lei Hu

Chen Li

Guoguang Li

Fuxiang Li

Changhua Mou

Zhichao Liu

Di Zhao

Zhaohui Yang

Tao Xu

Yanzhi Hu

Jie Jin

Xuewen Zhang

Liwei Zhu

Jin Gao

Wenliang Li

Xuecen Shen

Bowen Deng

Huajian Li

Hang Bian

Zhen Peng

Chen Sui

Zhaoxing Li

Qingli Yang

Xiukuo Sun

Linghao Pu

Chuansheng Jia

Yujiang Song

Chen Cao

Qi Zhan

A low-to-medium maturity shale oil extraction system based on curtailed power heating includes a transmission line with an input terminal electrically connected to curtailed power from a wind and PV power generation base and an output terminal electrically connected to an input terminal of a surface control platform, where downhole electric heaters are located inside a heating well; the heating well penetrates through an upper sealing layer and is located in a reservoir; downhole temperature and pressure monitoring controllers are provided in the heating well; the downhole temperature and pressure monitoring controller is electrically connected to the downhole electric heater; and a production well penetrates through the upper sealing layer and is located at a side of the heating well adjacent to the ground in the reservoir. The system avoids resource waste caused by power curtailment, enhances energy utilization efficiency, and improves the mobility and recoverability of shale oil.

Low-to-medium maturity shale oil extraction system based on curtailed power heating

Provided is pressure sensor, including top cover assembly, upper seat, movable membrane; each of top and bottom of upper seat is provided with opening, top cover assembly seals opening at top of upper seat, movable membrane seals opening at bottom of upper seat; top cover assembly, upper seat, movable membrane form pressure reference chamber, and pressure sensor detects gas pressure on side of movable membrane away from top cover assembly based on state of movable membrane; at least one gas guide passage is formed at top cover assembly, and is configured to connect pressure reference chamber to outside; top cover assembly includes at least one blocking member configured to seal gas guide passage; and blocking member seals gas guide passage after being heated to temperature higher than preset melting temperature to be at least partially melted and being cooled to solidify. Manufacturing method for pressure sensor is further provided.

Pressure sensor with manufacturing efficiency and structure stability

The present application disclose a device for preparing rock samples with different moisture contents, which comprises a sample container, wherein two ends of the rock sample are respectively connected with a first steam inlet and a first steam outlet of the sample container; the first steam outlet, a pump and a gas-liquid separator are connected in sequence, a gas outlet end of the gas-liquid separator, a steam compressor and the first steam inlet are connected in sequence, and a liquid outlet end of the gas-liquid separator, a steam generator and the steam compressor are connected in sequence. The water vapor in the sample container is pumped into the gas-liquid separator by the pump to separate low-temperature water vapor and condensate, and the low-temperature water vapor and condensate form high-temperature and high-pressure steam again and return to the inside of the sample container. The water in the steam generator always circulates inside the preparation device. The measuring instrument measures the reduction of the water in the steam generator, and subtracts the pre-recorded reduction of the water in the steam generator when the preparation device is idling, so as to obtain the water amount of the rock sample, and then calculate the moisture content of the rock sample.

Device for preparing rock speciments with different moisture contents

The present disclosure provides a method and apparatus for a route navigation, which relate to the technical fields of computer vision, image processing, augmented reality and the like. An implementation solution is: performing an augmented reality navigation on a current route based on real-time acquired GPS information of a terminal; acquiring SLAM (simultaneous localization and mapping) coordinates of the terminal; converting, in response to determining that the GPS information meets a preset positioning difference condition, the SLAM coordinates into calculated geographic coordinates; and performing an augmented reality navigation on the current route based on the calculated geographic coordinates.

Method and apparatus for route navigation, electronic device, computer readable medium

A vehicle-road cooperation precise positioning method based on an electrified highway includes measuring position information of its own positioning point by using a roadside positioning module; determining absolute coordinates of all points on a communication line according to the position information; acquiring a contact signal when a vehicle-road connection information system comes into contact with the communication line, and determining position information of a contact point according to the contact signal and the absolute coordinates; and based on a conversion algorithm, determining current vehicle mass center position coordinate information according to the position information of the contact point and parameter information of the vehicle-road connection information system. In the process of real-time acquisition of vehicle dynamic position information, the method does not rely on a satellite positioning system at all and is based on a wired vehicle-road connection of the electrified highway, so that timeliness and reliability are higher.

Vehicle-road cooperation precise positioning method based on electrified highway

A test system and a test method for replacing natural gas hydrate with carbon dioxide are disclosed, relating to the technical field of exploitation of natural gas hydrates. The test system comprises a sample reaction vessel, a sample boundary condition loading device, a methane gas supply device, a carbon dioxide gas supply device, an output article collection and measurement device, and a data acquisition control device. A sample-sealing rubber sleeve and an upper sample-sealing plate are arranged in an inner cavity of the vessel, the sample-sealing rubber sleeve, a lower tray and the upper sample-sealing plate form a sample-sealing space. An axial pressure loading plate is arranged on the upper sample-sealing plate, and an upper cover plate is provided with an axial pressure loading injection hole. A side shrouding is provided with a confining pressure loading injection hole and a product discharge hole.

Test system and test method for replacing natural gas hydrate with carbon dioxide

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Beijing, China

Xiao Li