Assessing the State of Structural Foundations in Permafrost Regions by Means of Acoustic Testing

Syaskо, V. А.; Shikhov, A. I.

doi:10.3390/app12052364

Cited by 14 publications

(7 citation statements)

References 33 publications

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“…Additional questions arise about waste management in the fields of Western Siberia. The swampy terrain, permafrost soils, and the frequent use of trucks may lead to problems such as erosion and soil degradation [111,112]. Maintenance of well pads and in-field embankment roads becomes necessary.…”

Section: Discussionmentioning

confidence: 99%

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Lebedev,

Cherepovitsyn

2024

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Drilling-waste management is of great importance in the oil and gas industry due to the substantial volume of multi-component waste generated during the production process. Improper waste handling can pose serious environmental risks, including soil and water contamination and the release of harmful chemicals. Failure to properly manage waste can result in large fines and legal consequences, as well as damage to corporate reputation. Proper drilling-waste management is essential to mitigate these risks and ensure the sustainable and responsible operation of oil and gas projects. It involves the use of advanced technologies and best practices to treat and utilize drilling waste in an environmentally safe and cost-effective manner. This article describes a feasibility study of four drilling-waste management options in the context of the Khanty-Mansi Autonomous Okrug of Russia. For ten years of the project life, the NPV under the base scenario is equal to RUB −3374.3 million, under the first scenario is equal to RUB −1466.7 million, under the second scenario is equal to RUB −1666.8 million and under the third scenario is equal to RUB −792.4 million. When considering projects, regardless of oil production, the project under the third scenario pays off in 7.8 years and the NPV is RUB 7.04 million. The MCD and MCV parameters were calculated to be 106 km and 2290 tons, respectively. Furthermore, the study estimates the ecological damage prevented and the environmental effect of each option. Quantitative risk assessments, conducted through sensitivity analysis, reveal that the fourth option, involving the conversion of drilling waste into construction materials, emerges as the most economically feasible. The study also evaluates the interaction between business and government and analyzes the current situation in the sphere of drilling-waste management, concluding with concise recommendations for both companies and official bodies.

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Section: Discussionmentioning

confidence: 99%

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Lebedev,

Cherepovitsyn

2024

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“…The DME is an effective indicator for evaluating the internal damage of concrete, and the testing of dynamic modulus is a nondestructive test. Therefore, specimens used for durability testing can be used for non-destructive testing [20]. This experiment tests the change in the dynamic modulus of concrete as an indicator reflecting the comprehensive durability failure of concrete.…”

Section: Dynamic Modulus Of Elasticity (Dme)mentioning

confidence: 99%

Study on the Damage of Permafrost to Tower Foundations in Permafrost Regions

Wang,

Qin,

Liao

et al. 2024

E3S Web Conf.

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The tower foundation is an important component of the tower grounding device. The conditions in permafrost areas are relatively harsh, and damage to the foundation can affect the grounding performance of the grounding device. However, the damage characteristics of permafrost to the tower foundation in permafrost areas are not yet clear, and effective protection of the foundation cannot be achieved. Based on this, this article constructs a simulated frozen soil experimental platform through experiments, replacing the tower foundation with concrete specimens. The electrical and mechanical properties after freeze-thaw were measured using the quadrupole method and resonance method, respectively. The self performance of the tower foundation under different moisture content freeze-thaw conditions was studied, and the performance change law of the tower foundation after freeze-thaw was obtained to explore the damage of frozen soil to the tower foundation in frozen soil areas. It can be considered that the frozen soil in permafrost areas does not cause significant damage to the tower foundation itself in a limited number of years.

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“…To evaluate the length and integrity of driven piles, a non-destructive low strain impact integrity test is implemented, which is based on the analysis of the propagation of elastic waves induced in a pile body by a hammer blow [12][13][14][15][16][17]. However, the ASTM D5882 standard states that the integrity evaluation of a pile section below a manufactured mechanical joint is not normally possible since the impact wave likely will reflect completely at the discontinuity [18].…”

Section: Introductionmentioning

confidence: 99%

Wavelet Analysis for Evaluating the Length of Precast Spliced Piles Using Low Strain Integrity Testing

et al. 2022

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The difficulties with the application of low strain integrity testing for evaluating the length of driven precast piles of two sections justify the need for new data acquisition and analysis techniques. The standard time domain analysis of the recorded signals may not allow for distinguishing the desired responses from a pile toe and a splice. In this paper, we propose the use of a set of hammers of different weights and tip materials that will provide various sensitivities of the test to a pile splice. To further analyze the collected data, we study the distributions of phase angles obtained using complex continuous wavelet transform. The characteristic phase shifts that distribute from higher to lower frequencies can be interpreted as responses from a pile toe and a splice. To verify the proposed approaches, a series of numerical simulations were performed using the finite element method for the driven pile models with the different properties of a splice zone. Numerical simulation results show that the pile splices are clearly identified when using the shorter input pulses which can be generated by light hammers with a hard head material. The total length of a simulated pile with a 1 mm air gap between sections was undetectable by standard data analysis approaches and was evaluated when analyzing the wavelet phase angle distributions. Numerically validated data acquisition and analysis techniques were applied to field data analysis and allowed us to confidently identify the length of two-section piles grouped with a pile cap.

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Assessing the State of Structural Foundations in Permafrost Regions by Means of Acoustic Testing

Cited by 14 publications

References 33 publications

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Study on the Damage of Permafrost to Tower Foundations in Permafrost Regions

Wavelet Analysis for Evaluating the Length of Precast Spliced Piles Using Low Strain Integrity Testing

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