US 12,221,843 B1
Automatic detection function-integrated detection apparatus and method for water flowing fractured zone
Nuwen Xu, Chengdu (CN); Zhuang Li, Chengdu (CN); Biao Li, Chengdu (CN); Peiwei Xiao, Chengdu (CN); Rong Yang, Chengdu (CN); Yong Xia, Chengdu (CN); Bei Jiang, Chengdu (CN); Haoyu Mao, Chengdu (CN); Xinchao Ding, Chengdu (CN); Guo Liao, Chengdu (CN); Zhi Li, Chengdu (CN); Yuepeng Sun, Chengdu (CN); Zhiqiang Sun, Chengdu (CN); and Sen Yang, Chengdu (CN)
Assigned to SICHUAN UNIVERSITY, Chengdu (CN)
Filed by SICHUAN UNIVERSITY, Chengdu (CN)
Filed on Jul. 3, 2024, as Appl. No. 18/762,783.
Application 18/762,783 is a continuation of application No. PCT/CN2024/080351, filed on Mar. 6, 2024.
Claims priority of application No. 202410129368.1 (CN), filed on Jan. 31, 2024.
Int. Cl. E21B 21/08 (2006.01); E21B 33/127 (2006.01); E21B 43/26 (2006.01)
CPC E21B 21/08 (2013.01) [E21B 33/127 (2013.01); E21B 43/26 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An automatic detection function-integrated detection apparatus for a water flowing fractured zone, comprising:
a drill rod and an elastic water storage bag located at a periphery of a middle portion of the drill rod, wherein a region of the drill rod covered by the elastic water storage bag is a plugging region, and two sides of the plugging region are a head region and a tail region, respectively;
an interior of the drill rod has a water supply channel arranged in an axial direction; a terminal end of the head region is provided with a drill bit, and a terminal end of the tail region is configured to connect a drilling machine;
a side wall of the drill rod is provided with a first channel communicating an interior of the elastic water storage bag with the water supply channel, and a first valve is disposed in the first channel;
the drill rod in the head region is provided with a second channel communicating the water supply channel with an outside of the drill rod, and a first flowmeter and a second valve are disposed in the water supply channel between the second channel and the elastic water storage bag;
a water return pipeline is arranged between the head region and the tail region of the drill rod, and the water return pipeline passes through the elastic water storage bag and communicates an outside of the head region of the drill rod with an outside of the tail region of the drill rod; and
a second flowmeter is disposed in the water return pipeline.