Use of gelling compositions to prevent salt deposition

• Published in: Journal of physics. Conference series Vol. 1753; no. 1; pp. 12069 - 12074
• Main Authors: Almukhametova, E M, Kuzmina, V V, Shadrina, P N
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.02.2021
• Subjects: Aluminous cements; Aluminum oxide; Composition; Control methods; Flow resistance; Hydrochloric acid; Inorganic salts; Nepheline; Petroleum production; Physics; Reservoirs; Scaling; Water purification
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1753/1/012069

The main source of salt release is water produced in conjunction with oil. Improving the efficiency of oil production is currently mainly achieved by preventing deposits of inorganic salts during well operation. Of the currently known methods of controlling scaling, the method of preventing deposits using gel-forming components is the most effecient. There are various compositions of gelling compositions to solve this problem. For example, mixtures based on hydrochloric acid, nepheline, high alumina cement, etc. However, these compositions also have some drawbacks. Due to the rapid neutralization of acid, the composition quickly loses its properties. In addition, difficulties may arise when dosing the chemical component and preparing the composition. The formation of the gel directly in the reservoir conditions allows you to create a zone (screen) with increased filtration resistance and exclude inter-reservoir flows, pulling bottom water and fight against scaling. In order for the oil production process to be the most effective, it is very important to choose the optimal option for preventing scaling, taking into account the features of the operation of wells in specific fields.