Milling drifting pressure test integrated tool

• Main Authors: PENG HAIJI, SUO JIAN, XU XIAO, ZHANG YAN, YI WEIWEI, SONG QINGCHANG, LI CHUWU, SUN HANJUN, LI HAO, XI QINGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2020
• 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 milling and drifting pressure test integrated tool in oil field workover treatment construction. The spiral milling cone is characterized in that the outer side of the bottom of the spiral milling cone is a cone body with concave-convex vertical grooves, the outer side of the middle of the spiral milling cone is a spiral body evenly provided with concave-convex grooves, abrasion-resistant materials are laid on convex parts, the outer diameter of the upper portion is smaller than that of the spiral body, and the inner side is a pipe thread connected with the lowerportion of a connecting sliding pipe; a concave-convex groove spiral body is arranged on the outer side of the spiral sliding sleeve, and the inner side of the spiral sliding sleeve is shaped like a Chinese character'ao 'and sleeves the outer side of the connecting sliding pipe; the upper part of the connecting sliding pipe is in threaded connection with the connector; two ends of the ball seat sliding pipe are in threade