Study and Application of Novel Cellulose Fracturing Fluid in Ordos Basin

Yang, Zhanwei; Xu, Yizhuang; Wang, Xin; Duan, Yonghong; Che, M.; Lü, Yongjun

doi:10.1088/1755-1315/170/2/022145

Cited by 4 publications

(5 citation statements)

References 3 publications

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“…In the current study, we investigated the influence of unconventional fracturing fluids' rheology on the fracture propagation parameters. These fluids are based on viscoelastic surfactants (VES) [26][27][28][29][30][31][32][33] and synthetic polymers such as polyacrylamide (PAA) [34][35][36]. Additionally, in the current laboratory study we injected gelled oil-based system, prepared by the method described in [37].…”

Section: Introductionmentioning

confidence: 99%

Laboratory Study of the Influence of Fluid Rheology on the Characteristics of Created Hydraulic Fracture

et al. 2022

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In the last decade, the negative impact of hydraulic fracturing fluids on the reservoir properties has been noted, which has led to the new trend of improving characteristics and developing new hydraulic fracturing fluids. As an alternative option to the traditionally used cross-linked fluids based on guar solution, in our laboratory we have tested fluids having a branched spatial structure, which allowed them to hold and transport proppants, despite the low viscosity of this kind of fluids (100–200 mPa·s measured at 100 s−1). Existing theoretical models of hydraulic fracture (HF) propagation have some limitations in predicting the influence of fracturing fluids on reservoir properties. Unfortunately, in situ experiments in the target reservoir are difficult and expensive. Thus, laboratory experiments can be considered as a reasonable alternative for testing new fluids, since they can provide comprehensive information about the properties of the created HF before the application of a new hydraulic fracturing technique in the field conditions. This paper presents the results of an experimental study of hydraulic fracturing of granite samples in laboratory conditions. The injection of water- and oil-based unconventional fracturing fluids was performed to study the influence of fluid rheology on the dynamics of the hydraulic fracture propagation process and parameters of the created HF. We have found that the fracturing fluid viscosity affects the parameters of the created HF, such as aperture, propagation velocity, breakdown pressure, and HF surface tortuosity. The obtained relationships can be taken into account for Hydraulic Fracture modelling, which may increase the efficiency of the hydraulic fracturing in the field conditions.

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Section: Introductionmentioning

confidence: 99%

Laboratory Study of the Influence of Fluid Rheology on the Characteristics of Created Hydraulic Fracture

et al. 2022

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“…From the 1950s to the 1980s, the proportion of oil-based fluids in the fracturing process decreased from 100 to 20%, which reduced the costs and risks of treatment [12][13][14]. Aqueous solutions of polymers, such as starches [15], guar gum [16,17], xanthan gum [18][19][20], carboxymethyl cellulose [21][22][23][24], and polyacrylamide [25,26], have come to replace hydrocarbon-based fluids [27,28]. Despite the low content of chemical reagents in water-based hydraulic fracturing fluids (less than 2-3 vol.% [27,29]), many environmental organizations oppose hydraulic fracturing operations.…”

Section: Introductionmentioning

confidence: 99%

“…In modern HF practice, the tasks of developing and introducing fracturing fluids that reduce the above negative consequences to a minimum are becoming urgent. Such fluids can include systems based on viscoelastic surfactants (VES, which are non-polymer fracturing fluids) [39][40][41][42][43][44][45][46][47][48] and synthetic polymers such as polyacrylamide (PAM) and products based on it [22,25,26]. Each of these systems has its own advantages.…”

Section: Introductionmentioning

confidence: 99%

Applicability Assessment of Viscoelastic Surfactants and Synthetic Polymers as a Base of Hydraulic Fracturing Fluids

et al. 2022

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Hydraulic fracturing (HF) is currently the most widespread and effective method of oil production stimulation. The most commonly used fracturing fluid is crosslinked guar gels. However, when using these systems, problems such as clogging of the pore space, cracking, and proppant packing with the remains of the undestroyed polymer arise. Therefore, the efficiency of the hydraulic fracturing process decreases. In this work, compositions based on viscoelastic surfactants (VES) and synthetic polymers (SP) were considered as alternatives capable of minimizing these disadvantages. Most often, the possibility of using a composition as a fracturing fluid is evaluated using rotational viscometry. However, rotational viscometry is not capable of fully assessing the structural and mechanical properties of fracturing fluid. This leads to a reduced spread of systems based on VES and SP. This paper proposes an integrated approach to assessing the effectiveness of a water-based fracturing fluid. The proposed comprehensive approach includes an assessment of the main characteristics of water-based fracturing fluids, including an analysis of their structural and mechanical properties, which is based on a combination of rotational and oscillatory rheology and a comparative analysis of methods for studying the influence of fluids on the reservoir rock. The use of the developed approach to assess the technological properties of fracturing fluids makes it possible to demonstrate the potential applicability of new, unconventional fracturing fluids such as systems based on VES and SP.

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“…In recent years, with the advancement of exploration and development technology, more and more unconventional reservoirs have been explored and developed (Jia et al 2012;Sun et al 2019;Li et al 2020). They are characterized by high temperature, tight and deep burial, so reservoir stimulation has become an indispensable and e cient development method (Lau et al 2016;Yang et al 2018;You et al 2018; Dai et al 2019). Currently, for the development of tight oil and gas, and other resource reservoirs, it is particularly important to improve the performance of fracturing uids (Scanlon et al 2015;Zhao et al 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Among them, guar gum and polymers have some disadvantages such as relatively narrow supply, high residue content, and high cost (Barati and Liang 2014; Thombare et al 2016;Sharma et al 2018). Therefore, cellulose, which has the advantages of low cost, wide sources, and no pollution, has become the best choice for fracturing uids thickeners for low-cost and e cient development of unconventional reservoirs (Yang et al 2018; Gao et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Enhance The Properties of Cellulose Fracturing Fluids By Cellulose Nanocrystals

Wang

et al. 2021

Preprint

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With inspiration from the enhancement of the viscoelasticity of cellulose nanocrystals (CNCs) on hydrogels, we paid attention to cellulose fracturing fluids prepared from the CNCs skeleton reinforced covalently cross-linked cellulose networks. In this paper, we hybridized CNCs with sodium CMC-Na to form nano cellulose fracturing fluids, characterized the performance of nano hybrid fracturing fluids and analyzed the nano-crystals enhancing fracturing fluid performance mechanism. It showed that the apparent viscosity, temperature tolerance, elastic modulus, and tensile strength of cellulose fracturing fluids were improved by CNCs. Compared with the blank cellulose fracturing fluids, the viscosity value of nano-cellulose fracturing fluids at 120 ℃ reached 195mPa·s, with an increase of 200 %, and the elastic modulus was 30Pa, with an increase of about 253 %. Furthermore, the microscopic analysis revealed that CNCs can play the role of nucleus and skeleton in the network structure of cellulose fracturing fluids and obviously enhanced the strength of the network structure. It is obvious to improve the performance of the fracturing fluids by adding CNCs into the cellulose fracturing fluids. This method provides a new idea for the development of fracturing fluids suitable for unconventional reservoirs.

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Study and Application of Novel Cellulose Fracturing Fluid in Ordos Basin

Cited by 4 publications

References 3 publications

Laboratory Study of the Influence of Fluid Rheology on the Characteristics of Created Hydraulic Fracture

Laboratory Study of the Influence of Fluid Rheology on the Characteristics of Created Hydraulic Fracture

Applicability Assessment of Viscoelastic Surfactants and Synthetic Polymers as a Base of Hydraulic Fracturing Fluids

Enhance The Properties of Cellulose Fracturing Fluids By Cellulose Nanocrystals

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