Normal or abnormal? Machine learning for the leakage detection in carbon sequestration projects using pressure field data

S Sinha, RP de Lima, Y Lin, AY Sun, N Symons… - International Journal of …, 2020 - Elsevier
The international commitments for atmospheric carbon reduction will require a rapid
increase in carbon capture and storage (CCS) projects. The key to any successful CCS …

Frequency dependent hydraulic properties estimated from oscillatory pum** tests in an unconfined aquifer

A Rabinovich, W Barrash, M Cardiff, DL Hochstetler… - Journal of …, 2015 - Elsevier
Oscillatory pum** tests were conducted at the Boise Hydrogeophysical Research Site. A
periodic pressure signal is generated by pum** and injecting water into the aquifer …

Measuring well hydraulic connectivity in fractured bedrock using periodic slug tests

E Guiltinan, MW Becker - Journal of Hydrology, 2015 - Elsevier
Periodic hydraulic experiments were conducted in a five-spot well cluster completed in a
single bedding plane fracture. Tests were performed by using a winch-operated slug …

What's conventional and what's special in a reservoir study for underground gas storage

F Verga - Energies, 2018 - mdpi.com
The development of an underground gas storage (UGS) project and its subsequent
management must ensure technical feasibility, commercial value and long-term efficiency …

A harmonic pulse testing method for leakage detection in deep subsurface storage formations

AY Sun, J Lu, S Hovorka - Water Resources Research, 2015 - Wiley Online Library
Detection of leakage in deep geologic storage formations (eg, carbon sequestration sites) is
a challenging problem. This study investigates an easy‐to‐implement frequency domain …

Using pulse testing for leakage detection in carbon storage reservoirs: A field demonstration

AY Sun, J Lu, BM Freifeld, SD Hovorka… - International Journal of …, 2016 - Elsevier
Monitoring techniques capable of deep subsurface detection are desirable for early warning
and leakage pathway identification in geologic carbon storage formations. This work …

Bayesian well-test 2D tomography inversion for CO2 plume detection

J Gunning, J Ennis-King, T LaForce, C Jenkins… - International Journal of …, 2020 - Elsevier
The inversion of cross-well time-lapse pressure tests is investigated as a monitoring
technique for locating CO 2 plumes in the subsurface. Fast inversion methods are possible …

Phenomenon of methane driven caused by hydraulic fracturing in methane-bearing coal seams

B Huang, Q Cheng, S Chen - International Journal of Mining Science and …, 2016 - Elsevier
The methane concentration of the return current will always be enhanced to a certain degree
when hydraulic fracturing with bedding drilling is implemented to a gassy coal seam in an …

Time-lapse pressure tomography for characterizing CO2 plume evolution in a deep saline aquifer

L Hu, P Bayer, P Alt-Ep**, A Tatomir, M Sauter… - International Journal of …, 2015 - Elsevier
A time-lapse pressure tomography inversion approach is applied to characterize the CO 2
plume development in a virtual deep saline aquifer. Deep CO 2 injection leads to flow …

Harmonic pulse testing for well performance monitoring

PA Fokker, ES Borello, F Verga, D Viberti - Journal of Petroleum Science …, 2018 - Elsevier
Harmonic testing was developed as a form of well testing that can be applied during
ongoing production or injection operations, as a pulsed signal is superimposed on the …