Froth gel for gas-bearing coal bed hydrofracturing in mine conditions

Kurlenya, M. V.; Алтунина, Л. К.; Kuvshinov, V. A.; Patutin, A. V.; Serdyukov, S. V.

doi:10.1134/s1062739148060019

Cited by 7 publications

(3 citation statements)

References 1 publication

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“…In general, MC aqueous solutions exhibit typical reversible thermogelation behaviors (Figure ), and such thermogelation and thermoviscosifying properties of MC aqueous solutions furnish it widely practical and potential applications, mainly focusing on food industry, pharmaceuticals, and oil upstream with high temperature environment …”

Section: Cellulose Derivativesmentioning

confidence: 99%

Thermoviscosifying Smart Polymers for Oil and Gas Production: State of the Art

Feng

2018

ChemPhysChem

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Water-soluble polymers have been extensively used in all sections of the oil and gas upstream industry, but their inherent thermothinning behaviour has limited their applications in harsh environments. To address this issue, thermoviscosifying (or "thermothickening") polymers (TVPs) whose aqueous solution viscosity automatically increases upon increasing the temperature were introduced in the early 1990s. This review first recalls the background for developing such smart materials, followed by demonstrating the mechanism of thermothickening. Next, three major TVPs including N-alkyl substituted acrylamide copolymers, grafted polyethers, and cellulose derivatives are summarized with respect to their structure-property relationship, then their practical trials or potential uses in oil and gas drilling fluids, cementing slurries, hydraulic fracturing, steam flooding, and enhanced oil recovery are discussed. Finally, the advantages and disadvantages of the current TVPs are commented and future prospects are discussed to close this review.

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Section: Cellulose Derivativesmentioning

confidence: 99%

Thermoviscosifying Smart Polymers for Oil and Gas Production: State of the Art

Feng

2018

ChemPhysChem

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“…The total sand volume during fracturing process is a proxy for characterizing the fracture scale. Theoretically, the increment in sand volume is conducive to increase the fracture length and width, which in turn releases stress in a large extent and then increases the desorption radius of CBM wells to improve gas production (Kurlenya et al., 2012). However, in the B3 area, this theory is inapplicable any more.…”

Section: Parameters Controlling Cbm Well Productivitymentioning

confidence: 99%

Parameters controlling high-yield coalbed methane vertical wells in the B3 area, Xishan coal field, Shanxi, China

Xia

Zeng

Song

2016

Energy Exploration & Exploitation

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Whether a coalbed methane well achieves high yield is dominated by various parameters, and the controls of parameters on gas production usually have been analyzed by mathematical methods. However, no related research was conducted in the Xishan coal field. Geological characteristics of the coal reservoir in the B3 area, Xishan coal field, were analyzed. In this study, the B3 area was divided into the west and east subareas according to the different effects of burial depth on gas content. Geological, engineering, and draining parameters were extracted to compare with gas production. The results show that, in both subareas, draining parameters play the most important role in controlling gas production. Among geological parameters, gas content and permeability have much more significant effects on gas production. In shallow buried subarea (the east subarea), the effects of resistivity and the difference of stop pressure and drop pressure (Ps-Pd) on gas production are much notable than other parameters, which reflects permeability is a dominating factor for controlling well productivity. Regions with low resistivity, high Ps-Pd, and high water level are favorable regions for gas development in shallow buried subarea. However, water production and gas content determine the well productivity in deep buried subarea (the west subarea), in which, high gas content and water production, low water level are much helpful for producing gas.

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“…9 Scholars have conducted extensive research on air leakage plugging materials and methods such as spraying inhibitors, [10][11][12] pouring mud, 13,14 inert gases, 15,16 three-phase foams, 17 polymer foams 18 and gels. 19,20 These materials play an important role in ensuring the safe production in coal mines, but they also have some shortcomings. For example, slurry materials (yellow mud, fly ash, etc.)…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of environmentally friendly double‐network fire fighting gel: Based on natural polymer/industrial solid waste

Zhang

et al. 2022

J of Applied Polymer Sci

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In this paper, a new kind of environmental friendly double‐network gel material was prepared. The first network structure was formed by the graft copolymerization of sodium lignosulfonate (LS) and acrylic acid (AA), and the second network structure was formed by the chelation reaction of sodium alginate (SA) and carbide slag clarified solution (Ca2+). Through an orthogonal experiment, the effects of raw material addition on the compressive strength and apparent viscosity of the gel were analyzed. According to the analysis results, the optimal experimental ratio was obtained, i.e., 2 wt% of LS, 0.25 wt% of SA, 15 wt% of AA, 0.1 wt% of MBA and 0.3 wt% of APS. Furthermore, the structure of the gel are characterized by FTIR, XRD, SEM, XPS, and TG‐DTG, and the results prove that the gel successfully polymerized and a stable three‐dimensional network structure is formed. The results of water absorption experiment disclose that the gel is sensitive to ions and pH, and the water absorption rate reaches 121.25 times. In addition, the results of the air leakage experiment and fire extinguishing experiment show that the gel can effectively cover the surface of crushed coal and densely fill the gaps, demonstrating a good plugging capability and fire extinguishing capability.

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Froth gel for gas-bearing coal bed hydrofracturing in mine conditions

Cited by 7 publications

References 1 publication

Thermoviscosifying Smart Polymers for Oil and Gas Production: State of the Art

Thermoviscosifying Smart Polymers for Oil and Gas Production: State of the Art

Parameters controlling high-yield coalbed methane vertical wells in the B3 area, Xishan coal field, Shanxi, China

Synthesis and properties of environmentally friendly double‐network fire fighting gel: Based on natural polymer/industrial solid waste

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