US 12,188,339 B2
Hydraulic fracturing and cutting cooperative device suitable for hard rock and use method thereof
Dan Ma, Xuzhou (CN); Qiang Li, Xuzhou (CN); Wentao Hou, Xuzhou (CN); Zhenhua Li, Xuzhou (CN); Yuanbo Xue, Xuzhou (CN); Xuefeng Gao, Xuzhou (CN); Kuirun Zhang, Xuzhou (CN); Weihao Huang, Xuzhou (CN); Zaixing Zu, Xuzhou (CN); Hao Wu, Xuzhou (CN); and Hao Yan, Xuzhou (CN)
Assigned to CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Xuzhou (CN)
Filed by CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Xuzhou (CN)
Filed on Apr. 16, 2024, as Appl. No. 18/636,666.
Claims priority of application No. 202310602752.4 (CN), filed on May 26, 2023.
Prior Publication US 2024/0392669 A1, Nov. 28, 2024
Int. Cl. E21B 43/114 (2006.01); E21B 4/02 (2006.01); E21B 43/26 (2006.01)
CPC E21B 43/26 (2013.01) [E21B 4/02 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hydraulic fracturing and cutting cooperative device suitable for a hard rock, comprising:
a drill pipe, wherein the drill pipe is an integrated drill pipe for hydraulic fracturing and drilling, and one end of the drill pipe is detachably connected with a conical drill bit;
a pneumatic drilling system, wherein the pneumatic drilling system is used for generating high-pressure gas and driving the drill pipe to drill holes;
a hydraulic fracturing system, wherein the hydraulic fracturing system is communicated with the drill pipe and is used for providing high-pressure fracturing fluid;
a collaborative control system, wherein the pneumatic drilling system and the hydraulic fracturing system are both communicated with the collaborative control system, and the collaborative control system is used for realizing mutual conversion of a pneumatic drilling function and a hydraulic fracturing function of the drill pipe; wherein the collaborative control system comprises a gas-liquid pressurization speed-up box and a gas-liquid separation conversion chamber; the gas-liquid pressurization speed-up box is fixedly installed on a console of a roadheader, and the pneumatic drilling system and the hydraulic fracturing system are both communicated with the gas-liquid pressurization speed-up box; the drill pipe is communicated with the gas-liquid separation conversion chamber, and the gas-liquid separation conversion chamber is used for realizing the mutual conversion of the pneumatic drilling function and the hydraulic fracturing function of the drill pipe, and both the pneumatic drilling system and the hydraulic fracturing system are communicated with the gas-liquid separation conversion chamber; and
a cutting head, wherein the cutting head is installed on the roadheader, the drill pipe is coaxially sleeved in a middle of the cutting head, and the pneumatic drilling system is in transmission fit with the cutting head.