A Novel Profile Control Agent in High-Temperature and High-Salinity Reservoirs: Dispersed Particle Gel Prepared from Modified Nanographite-Strengthened Bulk Gel

Lv, Dongfang; Li, Jiaming; Bo, Qiwei; Xie, Zhongxu; Dai, Caili; Zhao, Guang

doi:10.1021/acs.energyfuels.3c03478

Cited by 2 publications

(1 citation statement)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The injection of a 0.1 PV gel to seal the core resulted in a 13.6% increase in the recovery factor. Lv et al [17] utilized a self-formulated nanographite polymer and phenolic resin as a cross-linking agent to fabricate a gel system that exhibits high resistance to both temperature and salt. According to their investigation, the gel system demonstrated a high temperature resistance of 150 • C and maintained stability in a salinity of 300,000 mg/L.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Performance Evaluation of Temperature-Resistant and Salt-Resistant Gels

Li,

Fu,

2024

Gels

View full text Add to dashboard Cite

In order to improve the plugging performance of high-temperature and high-salt oil reservoir plugging agents, this paper utilizes a copolymer composed of acrylamide and 2-acrylamide-2-methylpropanesulfonic acid (AM/AMPS) as the polymer, polyethyleneimine as the cross-linking agent, and nylon fiber as the stabilizer to develop a high-temperature- and high-salt-resistant gel system. This study analyzed and evaluated the temperature resistance, salt resistance and blocking performance of the gel system. The evaluation results show that the gel-forming strength of this gel system can reach an H level, and it has good thermal stability at the high temperature of 130 °C. At the high salinity of 240,720 mg/L, the syneresis rate remains below 2.5%, and the gel-forming time is greater than 15 h; the higher the temperature, the shorter the gelling time. The results of our sand-filled pipe-plugging experiment show that the gel system can adapt to sand-filled pipes with different levels of permeability, and reaching a plugging rate of 94%.

show abstract

Section: Introductionmentioning

confidence: 99%