Mining screw thread type polished drill pipe connection guiding device

• Main Authors: WEI ZHONGHE, ZHANG YU, LI YUGANG
• Format: Patent
• Language: Chinese; English
• Published: 13.08.2014
• 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 utility model discloses a mining screw thread type polished drill pipe connection guiding device. The mining screw thread type polished drill pipe connection guiding device comprises a sleeve, wherein the sleeve comprises two separated type semicircular flanged sleeve bodies; two sides of each semicircular flanged sleeve body are respectively connected with fixed plates which are integrally connected with the semicircular flanged sleeve body; each fixed plate is provided with a mounting hole; and the semicircular flanged sleeve bodies are connected with each other through the mounting holes so as to form the sleeve. The two semicircular flanged sleeve bodies which have the same structures are fixedly combined, so that the sleeve of which the diameter is matched with the outer diameter of a drill pipe is formed; and the requirement on the coaxiality of two drill pipes is met by a guiding effect of the sleeve, so that a phenomenon that polished drill pipes deviate when drilling in a lithosphere can be effec