Detecting device for internal corrosion and scale formation of water injection string of oilfield water injection well

• Main Authors: WANG TIANHUI, LIU HUI, HAN LIANHE, HUANG XIAODONG
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2012
• 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 relates to a detecting device for internal corrosion and scale formation of a water injection string of an oilfield water injection well, which belongs to the technical field of oil production equipment. The detecting device comprises a body, a hanger blanking plug, a hanger bracket and a detecting hanger. A center hole and an eccentric hole are arranged on the body, and a first communication hole and a second communication hole are arranged between the center hole and the eccentric hole. The hanger blanking plug is placed in the eccentric hole, the hanger bracket is placed in the hanger blanking plug, and the detecting hanger is fixed on the hanger bracket. By the aid of the detecting device, underground corrosion or scale formation speed in the water injection string can be detected when the well is not repaired, and normal water injection is not affected. The detecting device not only saves time, labor and well repair cost, but also does not affect normal water injection.