US 12,259,510 B2
Devices for full-wave field seismic source based on gas explosion technologies and methods for acquiring seismic data
Liang Gou, Baoding (CN); Gang Yu, Baoding (CN); Maojun Yang, Baoding (CN); and Ximing Wang, Chengdu (CN)
Assigned to BGP INC., CHINA NATIONAL PETROLEUM CORPORATION, Baoding (CN); and OPTICAL SCIENCE AND TECHNOLOGY (CHENGDU) LTD., Chengdu (CN)
Filed by BGP INC., CHINA NATIONAL PETROLEUM CORPORATION, Hebei (CN); and OPTICAL SCIENCE AND TECHNOLOGY (CHENGDU) LTD., Sichuan (CN)
Filed on Apr. 16, 2024, as Appl. No. 18/637,442.
Application 18/637,442 is a continuation of application No. 18/503,153, filed on Nov. 6, 2023, granted, now 11,994,637.
Application 18/503,153 is a continuation of application No. PCT/CN2022/082396, filed on Mar. 23, 2022.
Claims priority of application No. 202111492086.0 (CN), filed on Dec. 8, 2021.
Prior Publication US 2024/0264319 A1, Aug. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01V 1/137 (2006.01); G01V 1/04 (2006.01)
CPC G01V 1/137 (2013.01) [G01V 1/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A device for a seismic source, comprising:
an explosion-proof metal outer barrel and an explosion-proof metal gas explosion inner barrel, the explosion-proof metal outer barrel and the explosion-proof metal gas explosion inner barrel being provided as a coaxial line arrangement, and the explosion-proof metal gas explosion inner barrel being configured to rotate relative to the explosion-proof metal outer barrel, wherein
an outer wall of the explosion-proof metal outer barrel is provided with outer barrel vertical grooves, a bottom center of the explosion-proof metal outer barrel is provided with an outer barrel hole, the outer barrel vertical grooves are provided with first outer barrel lids, and the outer barrel hole is provided with a second outer barrel lid;
the outer wall of the explosion-proof metal outer barrel is further connected with high-strength steel plates; and
the explosion-proof metal gas explosion inner barrel is divided into two gas explosion chambers according to a preset pattern, the two gas explosion chambers are connected to pipelines configured to inject high-pressure air and high-pressure gas, tail tips of the two gas explosion chambers are provided with inner barrel vertical grooves, bottom centers of the two gas explosion chambers are provided with inner barrel holes, the inner barrel holes are provided with first inner barrel lids, and the inner barrel vertical grooves are provided with second inner barrel lids;
a first explosion-proof metal gas tank and a second explosion-proof metal gas tank, wherein
the first explosion-proof metal gas tank is configured to store compressed air and the second explosion-proof metal gas tank is configured to store compressed gas;
an electronic ignition gun is installed in the explosion-proof metal gas explosion inner barrel, and the electronic ignition gun is connected to a GPS timing module;
a controller configured to control the electronic ignition gun and an opening and closing of the first outer barrel lids, the second outer barrel lids, the first inner barrel lids, and the second inner barrel lids; and
a pressure sensing unit configured to monitor pressure data, the pressure sensing unit including a first pressure sensor deployed inside the first explosion-proof metal gas tank and a second pressure sensor deployed inside the second explosion-proof metal gas tank.