Springer Proceedings in Physics, pages 403-410

Study and Application of Solid Dissolving Agent in Water Injection Well

Wei Jiang 1
Chen Huang - 1
Yonggen Yi 1
Xinru Huang 1
Jianwei Wang 2
Cai Xiaojun 3
Ziyi Wei 1
Yubo Lian 1
1
 
Xi’an Changqing Chemical Group Co., Ltd, PetroChina Changqing Oilfield Company, Xi’an, China
3
 
Oil Production Plant 11, PetroChina Changqing Oilfield Company, Xi’an, China
Publication typeBook Chapter
Publication date2024-09-30
SJR0.135
CiteScore0.4
Impact factor
ISSN09308989, 18674941
Abstract
Aiming at the scaling condition of Fuyu oil well in the eighth oil recovery plant of Daqing Oilfields, we selected the excellent amino sulfonic acid, solid hydrochloric acid and complexing agent EDTA as the scale inhibitor formula, and determined that the ratio was 4:1:1. The scale experiment is carried out in the field. When the scale temperature is 60°, the scale removal efficiency can reach more than 90%, and the scale of the former 5 h is faster, and the scale removal rate can reach over 50%. The field test shows that the scaling effect of the scale acid bar formed by the curing process is good, and it effectively solves the serious scaling phenomenon of the water injection pipe column.

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