Multifunctional hydraulic setting tool for one-trip tubular column

• Main Authors: YANG YIXING, YIN XUEPENG, LIU YEQI, SUI MINGXIANG, ZHANG YAOHUI, LUO QIAN
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2020
• 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 invention discloses a multifunctional hydraulic setting tool for a one-trip tubular column. The multifunctional hydraulic setting tool is mainly used for temporary and permanent plugging or secondary well cementation of oil, gas and water layers. Cement paste is squeezed and injected into an annulus well section needing to be sealed or cracks and holes of a stratum through a retainer, so thatthe purposes of plugging and leak repairing are achieved. By means of the setting tool, setting locking, cement paste squeezing and injection, plugging reverse spitting prevention and lifting releasing operation of the one-trip tubular column can be achieved, a special setting tool is not needed, operation steps are simple, the structure is compact, and cost is low. Meanwhile, reverse spitting prevention and releasing operation are achieved, and other downhole operation can be conveniently and rapidly conducted after cement paste squeezing and injection are completed. Releasing has double insurances, so that difficult