Southwest Petroleum University

University of Electronic Science and Technology of China

Chengdu Leps Technology Co., Ltd

Hao Yang

Chi Chen

Jianchun Guo

Cong Lu

Shan Ren

Kun Wang

Zhihong Zhao

Shaobin Zhang

Su Diao

Qingsong Guo

Qianli Lu

Shuying Peng

Mingyuan Zhou

Shengyi Chen

Jiapeng Zhang

Fang Huang

Chaojun Tang

Jiyu Wang

Yingxian Ma

Xin Lei

The present disclosure provides a method for detection of soil heavy metal pollution using an unmanned aerial vehicle (UAV) and an X-ray fluorescence (XRF) technology. Based. Based on hardware equipment such as the UAV, XRF analyzer, and embedded equipment, the present disclosure develops an altitude hold module of the system and a ground-contact monitoring module, and assists the UAV to achieve safe and accurate fixed-point hovering, and develops a driving device for data acquisition to replace manual control and realize the automatic acquisition of XRF data. The data inversion method is realized by using embedded equipment, and after the data is acquired by the portable XRF analyzer near the ground, the algorithm research of inversion processing of contents of heavy metal elements in soil is realized, such that the portable XRF analyzer can automatically and accurately detect the contents of heavy metals in soil at a certain distance.

Method for detection of soil heavy metal pollution using unmanned aerial vehicle (UAV) and X-ray fluorescence (XRF) technology

A structural stabilizer for a fiber and proppant complex to enhance proppant migration and placement in a fractured well during propping and a preparation method thereof are provided. The structural stabilizer consists of: water, inorganic salt, kaolinite, nitrogen-doped modified graphene oxide, anionic surfactant, non-ionic alkyl polyglucoside, and polyacrylamide. The structural stabilizer improves bonding between a proppant and a fiber when slick water is used in stimulated reservoir volume (SRV) fracturing, prevents separation of the fiber and the proppant during migration, thereby reducing escape rate of the fiber from the fiber and proppant complex.

Structural stabilizer for fiber and conventional proppant complex in efficient proppant migration and placement technology of fractured well and preparation method

Growing community of inventors

Chengdu, China

Hao Yang