Chemical Proppant Generated in the Fracture from the Novel Fracturing Fluid System

2020 ◽  
Author(s):  
Zhifeng Luo ◽  
Nanlin Zhang ◽  
Liqiang Zhao ◽  
Lin Wu ◽  
Yuxin Pei ◽  
...  
Keyword(s):  
The Novel ◽  
Fracturing Fluid ◽  
Fluid System

Experimental Study on Novel High Density and High Temperature Tolerant Fracturing Fluid

2014 ◽  
Vol 1006-1007 ◽  
pp. 152-155
Author(s):  
Bo Xiao ◽  
Rui Ma
Keyword(s):  
High Temperature ◽  
Sodium Chloride ◽  
Base Fluid ◽  
High Density ◽  
The Novel ◽  
Fracturing Fluid ◽  
Fluid System ◽  
Crosslinking Process ◽  
Viscosity Enhancement ◽  
High Shearing

Based on weighted agent sodium chloride, this study introduces a high density and high temperature tolerant fracturing fluid. According to the evaluation of the effect of weighted agent on the performance of base fluid and crosslinked fluid, conclusions can be got as follows. Introduction of weighted agent provides an auxiliary viscosity enhancement of the base fluid to some extent. Meanwhile, the crosslinked time is prolonged and gel breaking becomes more difficult owing to the interference effect of metal ions exerted on the crosslinking process between molecular chains of guar and crosslinker. Moreover, the experiments show that the novel fluid system has a strong tolerance of high temperature and high shearing rate. The viscosity of the fluid system with 15% weighted agent sodium chloride can maintain 160 mPa•s after 120 min shearing at 170 s-1under the temperature of 150 °C. The excellent performance of the fluid system ensures it has a good stimulation effect in the fracturing treatment in the deep and high temperature formation stimulation treatment.

Laboratory Study and Evaluation on a Novel Clearfrac Fluid System

2012 ◽  
Vol 488-489 ◽  
pp. 133-136
Author(s):  
Shuang Fei Zhong ◽  
Fu Jian Liu ◽  
Dong Xu Li
Keyword(s):  
Hydraulic Fracturing ◽  
Oil And Gas ◽  
Water Injection ◽  
The Novel ◽  
Fracturing Fluid ◽  
Fluid System ◽  
Effective Measure ◽  
Temperature Resistance ◽  
Well Production ◽  
Viscoelastic Surfactant

Hydraulic fracturing is an effective measure to recover the permeabilityof reservoir and important to enhance oil and gas well production and water injection well. Fracturing fluid is the key factor in the fracture treatments. At present, water-based fracturing fluids are popular, because of low costs and steady performance, which has the largest applications. However, it performs badly in residue. The novel developed clearfrac fluid system named CF1 has lowresidue, cost affectivity, prior temperature resistance properties. Evaluation through a series of lab experiments, the experiments result show that the novel clearfrac fluid system can satisfy with the requirement of low damage and have favorable temperature resistance under 120 。C. The damage to the core matrix due to with the broken frac-fluid is low. Prior properties of the novel clear-fracturing fluid are suitable to high temperature and high pressure reservoirs. It is also a novel environmental friendly viscoelastic surfactant fracturing fluid. The development of the novel clear-fracturing fluid for hydraulic fracturing industry is significant.

Performance of the reproducible polyvinyl alcohol fracturing fluid system

2015 ◽  
Vol 88 (11) ◽  
pp. 1884-1891 ◽  
Author(s):  
Siming Yan ◽  
Yongji Wang ◽  
Jia He ◽  
Hongdan Zhang
Keyword(s):  
Polyvinyl Alcohol ◽  
Fracturing Fluid ◽  
Fluid System

scholarly journals Rheological properties of an ultra-high salt hydrophobic associated polymer as a fracturing fluid system

RSC Advances ◽  
2019 ◽  
Vol 9 (27) ◽  
pp. 15246-15256 ◽  
Author(s):  
Jinhao Gao ◽  
Guanghua Zhang ◽  
Lei Wang ◽  
Li Ding ◽  
Huaqiang Shi ◽  
...  
Keyword(s):  
Salt Tolerance ◽  
Rheological Properties ◽  
Network Structure ◽  
High Salt ◽  
Dense Network ◽  
Fracturing Fluid ◽  
Fluid System ◽  
System P

Surfactant and hydrophobic chains form a dense network structure, resulting in an improvement in the salt tolerance of the polymer.

scholarly journals A new type of experimentally proposed in situ heat/gas clean foam fracturing fluid system

2020 ◽  
Vol 10 (8) ◽  
pp. 3419-3436
Author(s):  
Kuangsheng Zhang ◽  
Zhenfeng Zhao ◽  
Meirong Tang ◽  
Wenbin Chen ◽  
Chengwang Wang ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Pressure Coefficient ◽  
System Optimization ◽  
Inert Gas ◽  
Working Fluid ◽  
Fluid Loss ◽  
Fracturing Fluid ◽  
Fluid System ◽  
New Type

Abstract When cold fluid is injected into low-temperature, low-pressure, low-permeability reservoirs containing wax-bearing heavy oil, cryogenic paraffin deposition and heavy oil condensation will occur, thus damaging the formation. Moreover, the formation pressure coefficient is low and the working fluid flowback efficiency is low, which affects the fracturing stimulation effect. Therefore, an in situ heat/gas clean foam fracturing fluid system is proposed. This system can ensure that conventional fracturing fluid can create fractures and carry proppant in the reservoir, generate heat in situ to avoid cold damage, reduce the viscosity, and improve the fluidity of crude oil. The in situ heat fracturing fluid generates a large amount of inert gas while generating heat, thus forming foam-like fracturing fluid, reducing fluid loss, improving proppant-carrying performance, improving gel-breaking performance, effectively improving crack conductivity, and is clean and environmentally friendly. Based on the improved existing fracturing fluid system, in this paper, a new type of in situ heat fracturing fluid system is proposed, and a system optimization evaluation is conducted through laboratory experiments according to the performance evaluation standard of water-based fracturing fluid. Compared with the traditional in situ heat fracturing fluid system, the fracturing fluid system proposed in this study generates a large amount of inert gas and form foam-like fracturing fluid, reduces fluid loss, enhances the proppant-carrying capacity and gel-breaking performance, improves crack conductivity, the gel without residue and that the gel-breaking liquid is clean and harmless.

Novel CO2-Emulsified Viscoelastic Surfactant Fracturing Fluid System Enables Commercial Production From Bypassed Pay in the Olmos Formation of South Texas

2006 ◽  
Author(s):  
Mark E. Semmelbeck ◽  
William Earl Deupree ◽  
John Kurt Von Plonski ◽  
Fred A. Mueller ◽  
Yiyan Chen ◽  
...  
Keyword(s):  
Commercial Production ◽  
South Texas ◽  
Fracturing Fluid ◽  
Fluid System ◽  
Viscoelastic Surfactant
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