As the exploration and development of oil and gas reservoirs shift from traditional high-permeability reservoirs to tight reservoirs, the technology trend in the field of unconventional reservoir stimulation and transformation is towards higher efficiency, lower cost, and more precision. Polymer dry powder quick-matching fracturing fluid technology is becoming the focus of the industry with its significant cost reduction and efficiency improvement advantages.
Polymer dry powder quick-matching fracturing fluid is an oil-free, instant, high salt resistance, low damage, and on-line viscous fracturing fluid system that directly uses dry powder drag reducer. Through the modification of conventional polymer dry powder, its solubility and salt resistance are greatly improved. At the same time, a matching high-efficiency continuous mixing equipment is developed to realize the immediate supply, immediate mixing and immediate injection of fracturing fluid, so as to improve construction efficiency and reduce comprehensive costs.
Because of its core technology of high effective ingredient and efficient continuous mixing, the polymer dry powder quick-matching fracturing fluid technology has significant advantages compared with ordinary powder, emulsion and suspension emulsion integrated fracturing fluid systems.
01
Instant, sticky, salt resistant
Liquid performance is greatly improved
It can achieve rapid dispersion and swelling of 20~ 30s, which is an order of magnitude higher than that of conventional powders;
The salt resistance can reach 200,000 ppm, which is 5 to 10 times higher than that of conventional emulsions.
The temperature resistance can reach 200 ° C, and the liquid is viscoelastic.
02
High degree of automation of supporting processes
High fracturing efficiency
It can operate in manual and automatic modes.
The equipment is explosion-proof as a whole; one use and one preparation, high safety;
It meets the fracturing requirements of unconventional oil and gas reservoirs such as large displacement, large liquid volume, and large sand volume.
03
Low concentration, no residue, low damage
cost reduction and efficiency increase
Under the same viscosity requirements, the dosage is reduced by 40-60%; under the same construction technical requirements, the comprehensive cost is reduced by 20% compared with the polymer inverse emulsion;
The core damage rate is reduced by about 30-50%.
04
Effectively improve the reservoir and increase production
Compared with the emulsion construction of adjacent wells on the same platform, the effect of increasing production of dry powder drag reducer construction is better and more stable;
At the same time, the construction pressure is lower, the resistance reduction effect is obvious, and the resistance reduction rate is higher.
05
Oil-free, clean production
Low HSE risk
The drag reducing agent is mainly composed of modified polyacrylamide;
No oil and emulsion phase source injection, no leakage pollution;
The cost of wastewater treatment is greatly reduced.
Save water resources and truly achieve clean production.
At present, polymer dry powder quick-matching fracturing fluid has been widely used in more than 1,400 well sections in domestic shale gas, tight sandstone, deep coal, carbonate rock, and shale oil reservoirs, and has achieved remarkable results. Whether it is facing the extremely cold weather in Northeast China or the extreme summer heat in Southwest China; whether it is large displacement continuous high viscosity, or low discharge high sand ratio sand carrying; whether it is cleaning mixed liquid, or high salinity full return drainage liquid, it has witnessed the excellent performance of this product in improving construction efficiency, improving liquid performance, reducing construction costs, and improving post-compression output.
Reservoir temperature • 75~ 142 ℃
Reservoir depth • 2000~ 4400m
Ambient temperature • -15~ 42 ℃
Salinity of mixed liquid water • 10000~ 68000mg/L
High displacement viscosity performance • 22m3/min: 9~ 45mPa · s
12m3/min: 20~ 96mPa · s
Production performance • Average single well improvement of 10~ 20%
Polymer dry powder quick matching fracturing fluid has been implemented well parameter index
Polymer dry powder quick-matching fracturing fluid technology has been recognized by the industry, and is expected to become a revolutionary technology for polymer preparation and cost reduction and a new quality productivity for quality improvement and efficiency. It has great potential in the field of unconventional oil and gas reservoir stimulation and transformation. In the future, polymer dry powder quick-matching fracturing fluid technology will continue to develop and improve, bringing more opportunities and breakthroughs to the geological exploration and oil and gas development industries. It is a powerful driving force for the progress of the industry and is worthy of wide application and promotion.