TITLE:
Research on the Performance of New Weighted Slippery Water Fracturing Fluid System
AUTHORS:
Yuanfan Shi, Weichu Yu, Dongkui Zhou, Fei Ding, Wengming Shu, Ying Zhang, Yiwen Ju, Zhengdong Lei
KEYWORDS:
Aggravated Fracturing Fluid, Aggravator, Slickwater, Corrosive Properties, Anti-Swelling Rate
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.14 No.8,
August
13,
2024
ABSTRACT: Deep and ultra-deep reservoirs have dense matrix and high fracture pressure, which leads to high pressure and difficulty in fracturing construction. Conventional aggravated fracturing fluids have the problems of low aggravation efficiency, high friction resistance, etc., and the reduction of construction pressure cannot reach the theoretical effect. In view of the above problems, this paper adopts the weighting agent HD160 and the drag reducing agent JHFR-2 to form a new type of weighted slippery water fracturing fluid system. And the weighting performance, drag reduction performance, corrosion performance, anti-expansion performance and reservoir damage of this system were studied. The results show that the density of the system is adjustable within 1.1 - 1.6 g·cm−3, and the drag reduction rate can be up to 68% at 1.5 g·cm−3, with low corrosion rate, surface tension less than 28 mN·m−1, anti-expansion rate as high as 94.5%, and the damage rate of the reservoir permeability is less than 10%, which is of good application prospect.