Formula slips fisher can release

• Main Authors: YANG ZHENTUAN, YU JIANGUO, WANG SHENGZHAN, XIA CONGJIANG, KANG GUOZHEN, XUE JIANMIN, SHA YUZHUO, SHI QINGPING
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2018
• 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 provides a formula slips fisher can release need not impose rotary motion to the slips fisher and can release and withdraw from the oil well fish in salvaging the operation, the topconnection, barrel and the salvage bowl that connect gradually including top -down the inside top -down of barrel has set gradually spring, slips, the ring is kept off to spring, slips retaining ringand cone down, big spring setting is between top connection and slips, the little spring sets up between slips and slips retaining ring, the slips retaining ring is fixed on the barrel, slip insert'sthe outside is the annular conical surface, with the inboard annular conical surface formation that the ring was kept off to the cone closely cooperates, the cone is kept off the ring and is in through cuting the fix with screw on the barrel, it is good that formula slips fisher can release has moving back nature of fish, and the characteristics of release stability are used in the middle of the oil field production field,