Patent ID: 7878239

Claim:
A fluid collecting apparatus inserted in a borehole for collecting fluid in the borehole, the fluid collecting apparatus comprising: a first packer which is selectively adhered to an inside of the borehole; a first supply pipe forming a passage which communicates with the first packer and supplies expansion fluid to an inside of the first packer; a second packer which is spaced apart from the first packer, and is selectively adhered independently of the first packer to the inside of the borehole; a second supply pipe forming a passage which communicates with the second packer and which does not communicate with the passage formed in the first supply pipe, supplies the expansion fluid to an inside of the second packer, and moves with the second packer in a longitudinal direction of the borehole; a guide tube which communicates with a collecting space between the first packer and the second packer, and is extended to an outside of the borehole to guide fluid in the collecting space to the outside of the borehole; and a supporting member coupled to the second packer so as to permit adjustment of the longitudinal position of the second packer relative to the first packer while in the borehole.