Selecting key parameters of the green pellets and lightweight ceramic proppants for enhanced shale gas exploitation

Szymańska, Joanna; Wiśniewski, P.; Wawulska-Marek, P.; Małek, Marcin; Mizera, J.

doi:10.1016/j.prostr.2016.02.040

Cited by 7 publications

(5 citation statements)

References 4 publications

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“…It has been investigated by many researchers that uniformity of the all kinds of propping agents strictly determines shale gas flow in the reservoir. A minimum 90 % of the settled ceramic granules in the well must be within the specified screen size, as it was discussed in another work [13]. Moreover, the G1 proppants tomography revealed incorrect pores arrangement creating elongated cracks.…”

Section: Resultsmentioning

confidence: 84%

“…Permeability lowers with the growth of proppant diameter. What is more, lower specific mass (~2 g cm −3 ) reduces not only expenditures of the whole fracturing process but also proppants settling velocity and thus placement into fractures in larger concentration yielding [13]. Acids as HCl/ HF mixture can be pumped down the hole to ensure demanded fracturing conditions.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of key parameters influence on properties of the green pellets and lightweight ceramic proppants obtained by mechanical granulation method

Szymańska

Wiśniewski

Małek

et al. 2016

J Therm Anal Calorim

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Ceramic proppants are determined as material designed for hydraulic fracturing in the shale gas industry. Shale formation is fractured due to pumping the fracturing fluid including proppants into the unconventional well. Ceramic granulates set in the newly created fissures act as a prop and permit the shale gas of flowing up the well. The aim of this research was to study and compare ceramic materials used as proppants. The investigation includes four kinds of industrial proppants in green state obtained in a way of mechanical granulation process without binder and with poly(acrylicstyrene) dispersion in amount of 5 mass% with respect to the powder. Green pellets and afterward sintered granulates with 16/20 and 20/40 mesh were also analyzed and compared. Usefulness of green pellets was estimated basing on bulk density, thermal analysis, thermogravimetry, roundness coefficient and porosity results. Structure, morphology and chemical composition of the green state samples were determined by scanning electron microscopy with energy-dispersive spectroscopy. The sintered proppants were also characterized with X-ray tomography, turbidity and solubility in acid. Mechanical strength of these samples was established during subjection to crush test. The outcomes show a suitability of the studied material and prove chemical composition and grain size influence on the integrity of created fractures and therefore the extraction of the unconventional gas out of the well.

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Section: Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Investigation of key parameters influence on properties of the green pellets and lightweight ceramic proppants obtained by mechanical granulation method

Szymańska

Wiśniewski

Małek

et al. 2016

J Therm Anal Calorim

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“…However, its strength is generally low, and its shape is irregular. At a closing pressure of above 20 MPa, quartz sand generally breaks, and the broken proppant breaks into fine particles, which may block the pipeline 14 . Lyle 15 showed that 5% debris leads to a 60% reduction in gas flow.…”

Section: Introductionmentioning

confidence: 99%

“…At a closing pressure of above 20 MPa, quartz sand generally breaks, and the broken proppant breaks into fine particles, which may block the pipeline. 14 Lyle 15 showed that 5% debris leads to a 60% reduction in gas flow. Moreover, the irregular shape of quartz sand proppants leads to a decrease in strength and conductivity, thus affecting the effect of hydraulic fracturing.…”

Section: Introductionmentioning

confidence: 99%

Basic principle, progress, and prospects of coal gangue ceramic proppants

Zhao

Zhang

et al. 2023

Int J Applied Ceramic Tech

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Ceramic proppants are preferred in hydraulic fracturing because of their high strength, good sphericity, and excellent acid corrosion resistance. Bauxite is the main raw material of ceramic proppants, but with the increasing depletion of bauxite resources, substitutes for bauxite need to be sought. Coal gangue is a solid waste that is rich in SiO 2 and Al 2 O 3 , making it a potential substitute for the preparation of ceramic proppants. The use of coal gangue to prepare ceramic proppants can reduce the cost of ceramic proppants and benefit environmental protection. Studies on using coal gangue to prepare ceramic proppants have been conducted and achieved progress, but further improvement can still be obtained.Here, the basic principle, progress, and prospects of coal gangue ceramic proppants are reviewed. First, coal gangue ceramic proppants are divided into two categories, namely, proppants prepared using coal gangue as an auxiliary material and proppants prepared using coal gangue as the main material. Second, the progress of research of coal gangue ceramic proppants is summarized from the perspective of additives, and the influence of different kinds of additives on the sintering temperature and performance of proppants is discussed. Lastly, the future prospects of coal gangue ceramic proppants are presented.

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“…As a petroleum fracturing proppant, ceramsite is highly uniform in shape (Bechteler et al, 2020). It has high chemical stability, thermal stability, sphericity, and compressive strength (Szymanska et al, 2016;Man and Wong, 2017). Furthermore, it can form fracture channels and improve the reservoir permeability during hydraulic fracturing (Assem and Nasr-El-Din, 2017;.…”

Section: Introductionmentioning

confidence: 99%

Development and performance evaluation of bioenzyme-responsive temporary plugging materials

Sun,

Li,

Liao

et al. 2023

Adv. Geo-Energy Res.

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Ocean gas hydrate is a potentially efficient and clean oil and gas alternative energy resource. Wells with complex structure, such as horizontal wells, can improve the extraction efficiency; however, drilling operations face challenges such as wellbore instability and reservoir damage due to the complex interaction between drilling fluids and hydrate reservoirs. This work presents a ceramsite temporary plugging microcapsule that uses ceramsite modified by 3-aminopropyltriethoxysilane as the core material and chitosan and sodium alginate as shell materials. It exhibits high strength during drilling and excellent plugging effects. After the action of bioenzymes, it can easily be dissolved, leading to high permeability post-drilling. The analysis and performance evaluation of ceramsite microcapsules show that their particle size is generally 40 µm, which can match the pore size of the hydrate reservoir depending on the number of encapsulation layers. Bioenzyme optimization at 15 • C yields the best permeability recovery of 74.5% for the low-temperature composite enzyme. As the temperature rises, the permeability recovery rate of ceramic microcapsules gradually increases and the difference in permeability recovery rate between 5 and 25 • C becomes more significant. With a longer degradation time, the permeability recovery rate of ceramsite microcapsules gradually enhances and the difference in permeability recovery rate becomes smaller after 12 h. The microcapsules exhibit a specific inhibitory effect on the decomposition of hydrates. Utilizing bioenzymeresponsive ceramsite microcapsules as temporary plugging materials can establish an "isolation barrier" around the wellbore, effectively sealing off the interaction between the wellbore and the gas hydrate reservoir during the drilling process. Re-opening the flow path around the well by bio-enzymatic unblocking at the end of drilling proves to be effective in solving the problem of balancing the stability of the well wall and protecting the reservoir.

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Selecting key parameters of the green pellets and lightweight ceramic proppants for enhanced shale gas exploitation

Cited by 7 publications

References 4 publications

Investigation of key parameters influence on properties of the green pellets and lightweight ceramic proppants obtained by mechanical granulation method

Investigation of key parameters influence on properties of the green pellets and lightweight ceramic proppants obtained by mechanical granulation method

Basic principle, progress, and prospects of coal gangue ceramic proppants

Development and performance evaluation of bioenzyme-responsive temporary plugging materials

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