A review of the current status of induced seismicity monitoring for hydraulic fracturing in unconventional tight oil and gas reservoirs

Li, Lei; Tan, Jingqiang; Wood, David A.; Zhao, Zhengguang; Becker, Dirk; Lyu, Qiao; Shu, Biao; Chen, Haichao

doi:10.1016/j.fuel.2019.01.026

Cited by 187 publications

(68 citation statements)

References 169 publications

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“…Seismic wave methods are well-developed detection techniques that have been widely used in reservoir (oil and gas) exploration [91]. In this case, hydrocarbon deposits usually are at a depth of hundreds of meters or even kilometres below the surface.…”

Section: Seismic Wave Methodsmentioning

confidence: 99%

A Comprehensive Review of Acoustic Methods for Locating Underground Pipelines

et al. 2020

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Underground pipelines are vital means of transporting fluid resources like water, oil and gas. The process of locating buried pipelines of interest is an essential prerequisite for pipeline maintenance and repair. Acoustic pipe localization methods, as effective trenchless detection techniques, have been implemented in locating underground utilities and shown to be very promising in plastic pipeline localization. This paper presents a comprehensive review of current acoustic methods and recent advances in the localization of buried pipelines. Investigations are conducted from multiple perspectives including the wave propagation mechanism in buried pipe systems, the principles behind each method along with advantages and limitations, representative acoustic locators in commercial markets, the condition of buried pipes, as well as selection of preferred methods for locating pipelines based on the applicability of existing localization techniques. In addition, the key features of each method are summarized and suggestions for future work are proposed. Acoustic methods for locating underground pipelines have proven to be useful and effective supplements to existing localization techniques. It has been highlighted that the ability of acoustic methods to locate non-metallic objects should be of particular practical value. While this paper focuses on a specific application associated with pipeline localization, many acoustic methods are feasible across a wide range of underground infrastructures.

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Section: Seismic Wave Methodsmentioning

confidence: 99%

A Comprehensive Review of Acoustic Methods for Locating Underground Pipelines

et al. 2020

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“…Hydraulic fracturing (HF) improves reservoir permeability by injecting high-pressure fluid into the ground to form a fracture network that is effectively connected to the wellbore [5][6][7]. Microseismic monitoring is generally implemented as a routine technology to monitor the development and expansion of fracturing networks in real time [8,9]. Additionally, microseismic monitoring technology has also been widely used for monitoring in other fields, including geothermal production, mining, carbon dioxide storage, and other industrial fields [10,11].…”

Section: Introductionmentioning

confidence: 99%

Multifractal Analysis of Acoustic Emissions during Hydraulic Fracturing Experiments under Uniaxial Loading Conditions: A Niutitang Shale Example

Tan

Xie

et al. 2020

Geofluids

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Fracture characterization is essential for estimating the stimulated reservoir volume and guiding subsequent hydraulic fracturing stimulations in shale reservoirs. Laboratory fracturing experiments can help provide theoretical and technical guidance for field operations. In this study, hydraulic fracturing experiments on the shale samples from Niutitang Formation in Hunan Province (China) under a uniaxial loading condition are conducted. The multifractal method is used to analyze the acoustic emission (AE) signals and characterize fracture initiation and propagation. The hydraulic fracturing process can be divided into three stages based on the characteristics of AE signals: the initial stage, the quite stage, and the fracturing stage. The multifractal analysis results showed that: (1) the value of the spectrum width, Δα, continues to increase as the energy accumulates until the fracturing stage starts; and (2) the difference in the multifractal spectrum values, Δf, reflects the relationship between small and large signal frequencies and can quantify the fracture scale, i.e., the lower the Δf, the larger the fracture scale and vice versa. The results were further verified using a time-frequency analysis of the AE signals and micro-CT scanning of the samples. This study demonstrates that the multifractal method is feasible for quantitatively characterizing hydraulic fractures and can aid field hydraulic fracturing operations.

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“…More than 600 seismic activities connected with hydraulic fracturing were recorded in the northern Montney Play of British Columbia . Generally, the accepted view about induced earthquakes was the diffusion of pore pressure and its subsequent increase, effectively reducing the normal fault stress, releasing stored fault stress, and triggering an earthquake . Moreover, Dahm et al roughly defined “induced seismicity” and “triggered seismicity” according to whether it was occurred with human activities.…”

Section: Introductionmentioning

confidence: 99%

“…13 Generally, the accepted view about induced earthquakes was the diffusion of pore pressure and its subsequent increase, effectively reducing the normal fault stress, releasing stored fault stress, and triggering an earthquake. 12,14,15 Moreover, Dahm et al 16 roughly defined "induced seismicity" and "triggered seismicity" according to whether it was occurred with human activities. Tan et al 17 stated that "induced" events and "triggered" events according to "wet" events directly associated with rock deformation or to "dry" events that governed by the stress changes, respectively.…”

Section: Introductionmentioning

confidence: 99%

Short‐term failure mechanism triggered by hydraulic fracturing

Wang

Liu

2019

Energy Science & Engineering

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Hydraulic fracturing may induce or trigger an earthquake while injecting fluid into strata to initiate a new fracture so as to promote oil and gas production. Previous studies have confirmed that the injection of fluids into the formation, especially hydraulic fracturing, is closely related to seismic activity. However, the mechanism through which fluid injection changes the stress field of rock mass and interacts with the in situ stress state is still poorly understood. This study focused on the short‐term mechanism coupling shear stress and hydraulic fracturing in an experimental simulation. Preexisting tension fractures were initiated and propagated by loading shear force. The fracture propagation path of hydraulic fracturing was closely related to the preexisting fractures formed by the preshear stress. Short‐term hydraulic fracturing promoted fracture propagation and acoustic emission events (or microearthquake signals), but it was less likely to cause rock mass instability or a large earthquake. The long‐term fluid injection could saturate preexisting fractures and infiltrate rock mass to increase the pore pressure and change the in situ stress field in a large area to induce an earthquake.

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A review of the current status of induced seismicity monitoring for hydraulic fracturing in unconventional tight oil and gas reservoirs

Cited by 187 publications

References 169 publications

A Comprehensive Review of Acoustic Methods for Locating Underground Pipelines

A Comprehensive Review of Acoustic Methods for Locating Underground Pipelines

Multifractal Analysis of Acoustic Emissions during Hydraulic Fracturing Experiments under Uniaxial Loading Conditions: A Niutitang Shale Example

Short‐term failure mechanism triggered by hydraulic fracturing

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