Drilling following type acoustic logging device

• Main Authors: WEI QIAN, CHE CHENGXUAN, WANG XIUMING, CONG JIANSHENG
• Format: Patent
• Language: English
• Published: 29.07.2015
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The embodiment of the invention relates to a drilling following type acoustic logging device. The device comprises a drill collar, a transmission energy converter and a receiving energy converter, wherein the transmission energy converter and the receiving energy converter are arranged on the drill collar; the transmission energy converter comprises a first radiation metal block, a first mass metal block and a plurality of transmission type piezoelectric ceramic sheets; the receiving energy converter comprises a second radiation metal block, a second mass metal block and a plurality of receiving type piezoelectric ceramic sheets. According to the device, a multi-pole-source working mode combining a single pole, a dipole and quadrupole is utilized to directly measure stratum longitudinal wave, transverse wav, stoneley wave sound velocity, attenuation and other parameters which can provide reference and verification for each other or individually processed, so that the reliability and applicable scope of the device can be greatly improved and expanded.