Towards a better understanding of wormhole propagation in carbonate rocks: Linear vs. radial acid injection

X Qiu, G Aidagulov, M Ghommem, E Edelman… - Journal of Petroleum …, 2018 - Elsevier
Understanding acid reactive flow and the formation of wormholes in carbonate rocks is
important for designing successful acidizing operations. Linear coreflooding experiments …

Effects of pre-existing fractures on carbonate matrix stimulation studied by large-scale radial acidizing experiments

G Aidagulov, D Gwaba, R Kayumov, A Sultan… - SPE Middle East Oil …, 2019 - onepetro.org
Carbonate reservoirs host a significant amount of hydrocarbon reserves in the Middle East
and worldwide. In matrix acidizing stimulation, hydrochloric acid (HCl) is commonly injected …

Experimental investigation of radial and linear acid injection into carbonates for well stimulation operations

X Qiu, E Edelman, G Aidagulov, M Ghommem… - SPE Kingdom of Saudi …, 2018 - onepetro.org
Linear core flooding experiments have been extensively conducted to develop a
fundamental understanding of the interactions between the acid and rock and provide …

Efficient large volume acid fracturing in openhole horizontal well with pre-created circular notches

R Kayumov, R Arias Urbina, K Bander… - SPE Middle East Oil …, 2019 - onepetro.org
Tight carbonate reservoirs often require acid fracturing stimulation treatments to exploit them
economically. In a horizontal well with a long openhole interval across a tight carbonate …

New insights into carbonate matrix stimulation from high-resolution 3D images of wormholes obtained in radial acidizing experiments

G Aidagulov, X Qiu, D Brady, M Abbad… - SPE Kingdom of Saudi …, 2018 - onepetro.org
Usually, carbonate acidizing is studied by conducting linear coreflooding experiments in
which a hydrochloric acid (HCl) solution is injected into small cylindrical core plugs, such as …

Beam pump dynamometer card classification using machine learning

SA Sharaf, P Bangert, M Fardan, K Alqassab… - SPE Middle East Oil …, 2019 - onepetro.org
A beam or a sucker rod pump is an artificial-lift pum** system using a surface power
source to drive a downhole pump assembly. A beam and crank assembly creates …

Notch driven hydraulic fracturing in open hole completions: numerical simulations of lab experiments

N Djabelkhir, X Song, X Wan, O Akash… - ARMA US Rock …, 2019 - onepetro.org
Hydraulic fracturing is the principal stimulation technique used to improve the oil and gas
recovery and enhance production from unconventional resources. In open hole completion …

Streaming potential measurements for downhole monitoring of reservoir fluid flows: A laboratory study

M Ghommem, X Qiu, G Aidagulov, M Abbad - Journal of Petroleum Science …, 2018 - Elsevier
In this paper, we conduct an experimental study to investigate the use of streaming potential
measurements for downhole monitoring of fluid flows in porous media for production and …

Notching as a Novel Promising Technique to Reduce Fracture Initiation Pressure in Horizontal Openhole Wellbores

G Aidagulov, E Edelman, D Brady, D Gwaba… - ARMA/DGS/SEG …, 2021 - onepetro.org
In this paper, the ability of a circular notch to reduce hydraulic fracture initiation pressure
(FIP) from an openhole completion is validated by a series of laboratory experiments. We …

Optimizing Carbonate Acid Stimulation by Minimizing Acid Injection Volume with Selective Treatment Placement

Z Sidaoui, M Abbad - International Petroleum Technology Conference, 2022 - onepetro.org
In carbonate acidizing, highly conductive wormholes are created. The process of wormhole
formation comprises two major periods: induction and wormholing. The induction period is …