Hydraulic Fracturing‐induced Seismicity at the Hot Dry Rock Site of the Gonghe Basin in China

Chen, Zubin; Zhao, Fangchen; Sun, Fang Hong; Lü, Hao; WANG, Chunlu; Wu, Haidong; Zhou, Xingyu

doi:10.1111/1755-6724.14883

Cited by 12 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Improving permeability and promoting the efficient circulation of oil and gas mandate the injection of highpressure fluids into the reservoir through hydraulic fracturing technology to create or expand fracture networks [6,7]. The emergence of fractures is accompanied by the occurrence of numerous microseismic events (M L < 3), typically imperceptible to human, and occasionally capable of initiating larger induced earthquakes [8][9][10]. Ensuring the effectiveness and safety of hydraulic fracturing mandates the installation of detectors either on the surface or downhole to monitor the fracturing process.…”

Section: Introductionmentioning

confidence: 99%

Localization for surface microseismic monitoring based on arrival time correction and VFOM

Wang,

Xu,

et al. 2024

Meas. Sci. Technol.

View full text Add to dashboard Cite

Unconventional resources have emerged as the primary source to meet the escalating demand for energy consumption, with hydraulic fracturing standing out as an effective means of boosting production. The utilization of microseismic monitoring is crucial for acquiring real-time or semi-real-time extension information of the fracture network to guide the fracturing process. The precise positioning of microseismic events is a fundamental aspect of microseismic monitoring. Traditional methods relying on (relative) arrival time significantly impact positioning accuracy due to picking errors. While waveform-based methods offer high accuracy, they require precise velocity models and are time-consuming. To overcome challenges associated with arrival time pickup and velocity accuracy, we introduce a virtual field optimization method (VFOM) based on arrival time correction. Initially, an equivalent velocity model is established, and the arrival time difference resulting from the model transformation of the master event is calculated to correct the observed arrival time of the target event. Subsequently, we match detector pairs, establish hyperboloids based on the corrected arrival time difference, and employ the intersection point of all hyperboloids as the positioning result. After that, we use the location results of the master event to enhance the accuracy of the target event. Finally, we apply the proposed method to both synthetic test and field datasets, demonstrating a significant improvement in the positioning accuracy and stability provided by the novel method. The robustness against arrival time error renders it a suitable choice for surface monitoring applications where signal quality is compromised. Furthermore, the simplified velocity model significantly diminishes the computational requirements in the positioning process, enhancing its efficiency, and consequently holds vast potential for application in real-time monitoring.

show abstract

Section: Introductionmentioning

confidence: 99%

Localization for surface microseismic monitoring based on arrival time correction and VFOM

Wang,

Xu,

et al. 2024

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Besides, the fow-back fuid is typically harmful to the environment, making its handling difcult and costly. In addition, recent research showed large-scale multistage hydraulic fracturing will generate microseismic [1], which may further trigger stronger geological movements and be a serious threat to people's lives and properties. China is a country with scarce water resources per capita, and the distribution of water resources is uneven.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effect of Supercritical CO2 on Mechanical Properties and Fracture Characteristics of Longmaxi Shale

Zhang

Yan

Yang

et al. 2023

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

Conventional hydraulic fracturing techniques typically consume large amounts of water when producing shale gas. Fracking fluids may cause environmental pollution. In contrast, supercritical carbon dioxide (scCO2) (above 31.8°C, 7.29 MPa) can displace CH4 in shale reservoirs. Achieve CO2 sequestration while increasing the shale gas production. We studied the mechanical properties and fracture characteristics of a shale under the action of scCO2, nitrogen, helium, and water by comparing the triaxial compression tests of shale samples with seven coring angles. The results show that: (1) scCO2 effectively reduced compressive strength of the shale and weakened the anisotropy of shale; (2) scCO2 caused the content of dolomite, calcite, and illite to decrease by 4.7%∼13.5%, respectively; (3) scCO2 produced micropores and microfractures 10 times larger than the original size in the microstructure. These microstructures can help improve the seepage and gathering of shale gas, leading to enhanced shale gas recovery and CO2 storage.

show abstract

Distinct response of deep and shallow geothermal reservoir temperature following earthquakes in the Kangding Fault zone hydrothermal system

Na,

Cen,

Shi

et al. 2024

Journal of Hydrology: Regional Studies

View full text Add to dashboard Cite

Hydraulic Fracturing‐induced Seismicity at the Hot Dry Rock Site of the Gonghe Basin in China

Cited by 12 publications

References 27 publications

Localization for surface microseismic monitoring based on arrival time correction and VFOM

Localization for surface microseismic monitoring based on arrival time correction and VFOM

Experimental Study on the Effect of Supercritical CO2 on Mechanical Properties and Fracture Characteristics of Longmaxi Shale

Distinct response of deep and shallow geothermal reservoir temperature following earthquakes in the Kangding Fault zone hydrothermal system

Contact Info

Product

Resources

About