US 12,000,767 B2
Natural gas diffusion coefficient measurement auxiliary device of hand-operated lifting device
Shuyong Hu, Sichuan (CN); Tingting Qiu, Sichuan (CN); Liehui Zhang, Sichuan (CN); Yulong Zhao, Sichuan (CN); Huiying Tang, Sichuan (CN); Xindong Wang, Sichuan (CN); Nana Song, Sichuan (CN); and Xueqiang Guo, Sichuan (CN)
Assigned to Southwest Petroleum University, Sichuan (CN)
Appl. No. 17/057,684
Filed by Southwest Petroleum University, Sichuan (CN)
PCT Filed May 18, 2020, PCT No. PCT/CN2020/090792
§ 371(c)(1), (2) Date Dec. 1, 2020,
PCT Pub. No. WO2021/139065, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 202010028377.3 (CN), filed on Jan. 10, 2020.
Prior Publication US 2022/0136948 A1, May 5, 2022
Int. Cl. G01N 13/00 (2006.01); E21B 25/00 (2006.01)
CPC G01N 13/00 (2013.01) [E21B 25/005 (2013.01); G01N 2013/003 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A natural gas diffusion coefficient measurement auxiliary device of a hand-operated lifting device, comprising:
a core chamber (1), a bracket (2), a core preservation device (3), and a hand-operated lifting device (4);
the left side of the core chamber (1) is connected with a methane measuring chamber, and the right side of the core chamber (1) is connected with a nitrogen measuring chamber;
a rotatable bracket (2) installed on the lower left side of the core chamber (1), and the lower right side of the core chamber (1) is connected with the hand-operated lifting device (4);
the core chamber (1) is rotatable by the hand-operated lifting device (4) with the bracket (2) as the center;
a horizontal platform at the lower part of the core chamber (1) is provided with a revolving door that can accommodate the left end of the core chamber (1); and
a core preservation device (3) is installed at the lower part of the revolving door.