Deliquification techniques for conventional and unconventional gas wells: Review, field cases and lessons learned for mitigation of liquid loading

MF Tugan - Journal of natural gas science and Engineering, 2020 - Elsevier
The current study offers a practical guide for dealing with water influx and liquid loading
problems particular to gas wells. Methods and discussions on remedying these problems …

Hydraulic diffusivity estimations for US shale gas reservoirs with Gaussian method: Implications for pore-scale diffusion processes in underground repositories

R Weijermars, C Afagwu - Journal of Natural Gas Science and Engineering, 2022 - Elsevier
This paper first presents so-called unified Gaussian solutions for the spatial advance of
diffusion transients triggered by a sudden change in pressure, molecular mass …

Application of machine learning method of data-driven deep learning model to predict well production rate in the shale gas reservoirs

D Han, S Kwon - Energies, 2021 - mdpi.com
Reservoir modeling to predict shale reservoir productivity is considerably uncertain and time
consuming. Since we need to simulate the physical phenomenon of multi-stage hydraulic …

Production rate of multi-fractured wells modeled with Gaussian pressure transients

R Weijermars - Journal of Petroleum Science and Engineering, 2022 - Elsevier
This study presents new pressure transient solutions, illustrated with some examples of the
vast practical application potential. Gaussian pressure transients (GPT) are derived here to …

Diffusive mass transfer and gaussian pressure transient solutions for porous media

R Weijermars - Fluids, 2021 - mdpi.com
This study revisits the mathematical equations for diffusive mass transport in 1D, 2D and 3D
space and highlights a widespread misconception about the meaning of the regular and …

Wolfcamp hydraulic fracture test site drained rock volume and recovery factors visualized by scaled complex analysis method (CAM): emulating multiple data sources …

R Weijermars, K Nandlal, MF Tugan… - … Conference, 20–22 …, 2020 - library.seg.org
Shale field development strategies are aimed at increasing recovery factors and thus
revolve around well-spacing decisions and hydraulic fracture treatment plans. The hydraulic …

Searching for the root cause of shale well rate variance: highly variable fracture treatment response

MF Tugan, R Weijermars - Journal of Petroleum Science and Engineering, 2022 - Elsevier
This case study highlights that shale wells drilled with tight well spacing in the same landing
zone using the same fracture treatment plan, commonly show large variance in well …

Gaussian decline curve analysis of hydraulically fractured Wells in shale plays: examples from HFTS-1 (hydraulic fracture test site-1, Midland basin, West Texas)

R Weijermars - Energies, 2022 - mdpi.com
The present study shows how new Gaussian solutions of the pressure diffusion equation
can be applied to model the pressure depletion of reservoirs produced with hydraulically …

Production-induced pressure-depletion and stress anisotropy changes near hydraulically fractured wells: Implications for intra-well fracture interference and fracturing …

J Wang, R Weijermars - Geoenergy Science and Engineering, 2023 - Elsevier
This study investigates the changes in the principal stress trajectories during development of
hydrocarbon (and/or geothermal) reservoirs with hydraulically fractured wells. Our analysis …

A novel optimization workflow coupling statistics-based methods to determine optimal well spacing and economics in shale gas reservoir with complex natural …

C Chang, C Liu, Y Li, X Li, W Yu, J Miao, K Sepehrnoori - Energies, 2020 - mdpi.com
In order to account for big uncertainties such as well interferences, hydraulic and natural
fractures' properties and matrix properties in shale gas reservoirs, it is paramount to develop …