Hydraulic Fracturing Design Improvements by Proppant Flowback Mitigation Method Application During Hydrocarbon Production

Jatykov, Temirlan; Sagindykov, Bimurat; Bimuratkyzy, Kuralay

doi:10.17794/rgn.2021.1.8

Cited by 2 publications

(1 citation statement)

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“…The determination and estimation of elastic behaviors are essential in the practice of engineering. The elastic modulus and Poisson's ratio are the most significant characteristics describing the deformability of rock material [21]. Tensile strength is an important factor to consider when determining whether or not the rock has been fractured, as acid fracturing mainly causes tensile stress damage.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties Evolution and Crack Initiation Mechanisms of Deep Carbonate Rocks Affected by Acid Erosion

Yang¹,

Li²,

Wang³

et al. 2023

Sustainability

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Deep tight-gas carbonate reservoirs have huge reserves, with the advantages of having clean and low-carbon characteristics in addition to being a sustainable and stable supply which leads to very high-quality green energy, despite its difficult extraction. The reservoirs are usually modified using acid fracturing before exploitation, but due to acid erosion, the continuous alteration of the mechanical properties of the reservoir rocks complicates the process of predicting the crack initiation pressure. This paper aims to address the difficulties in predicting the crack initiation pressure by conducting a series of acid-etching experiments on carbonate rock samples subjected to splitting and uniaxial compression tests. By examining the variations in the elastic modulus, Poisson’s ratio, tensile strength under distinct acid systems, and acid-etching durations and temperatures, a quantified mathematical model was developed. This model was integrated into a fracture-initiation pressure prediction framework, resulting in a practical and user-friendly tool for the acid fracture-initiation pressure prediction model, which was further demonstrated through field engineering validation. The findings reveal that the elastic modulus, Poisson’s ratio, and tensile strength of carbonate rocks exhibit an inverse relationship with acid-etching time and temperature. Extended acid fracturing durations and high reservoir temperatures are conducive to acid-fracturing transformations. The fracture-initiation pressure-prediction-model analysis disclosed that, compared to the gelled acid, the diverting acid demonstrates a more pronounced reduction in the reservoir fracture pressure under high-temperature and short-duration conditions. An acid system preference diagram was constructed to provide a theoretical foundation for practical engineering applications, delivering valuable insights for optimizing acid fracturing treatments in carbonate reservoirs to provide a boost for the green energy extraction of tight gas.

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Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties Evolution and Crack Initiation Mechanisms of Deep Carbonate Rocks Affected by Acid Erosion

Yang¹,

Li²,

Wang³

et al. 2023

Sustainability

View full text Add to dashboard Cite

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Applications of Nanomaterials in the Oil and Gas Industry

Bou-Hamdan

2022

Advances in Chemical and Materials Engineering

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The petroleum industry has been an ever-growing industry. New technologies are always being introduced to encompass the challenges that are encountered. Nanomaterials are being included in these technologies to improve the operation of different processes. Their distinctive physical and chemical characteristics encourage their use in different sectors such as the upstream, midstream, and downstream of the oil and gas industry. In this chapter, the nanomaterials that are utilized in the oil and gas industries are highlighted. Their implementation in various applications is also provided. These applications include hydrocarbon exploration, well drilling and completion, production operations, enhanced oil recovery mechanisms, transportation, and refining operations. There is also a discussion about existing problems and possibilities for future uses.

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Hydraulic Fracturing Design Improvements by Proppant Flowback Mitigation Method Application During Hydrocarbon Production

Cited by 2 publications

References 20 publications

Investigation of Mechanical Properties Evolution and Crack Initiation Mechanisms of Deep Carbonate Rocks Affected by Acid Erosion

Investigation of Mechanical Properties Evolution and Crack Initiation Mechanisms of Deep Carbonate Rocks Affected by Acid Erosion

Applications of Nanomaterials in the Oil and Gas Industry

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