Method for reducing water injection pressure of reservoir well

• Main Authors: QI YIN, LI CHUAN, TIAN XIAOJIE, DONG LIQUAN, LU HONGJUN, WU FURANG, LI JIANSHAN, CHEN WENBIN, GU YANLING, LIU JING, DUAN PENGHUI
• Format: Patent
• Language: Chinese; English
• Published: 16.01.2013
• 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 relates to a method for reducing water injection pressure of a reservoir well. The method comprises the following steps of: 1, displacing 1 to 2 cubes of cleaning fluid, closing the well, reacting for 50 minutes, cleaning a shaft, an oil pipe and hole impurities, and displacing residua...