Results 51 to 60 of about 1,374 (218)

Risk Mitigation and Mapping on Tubular System During Microbial Huff and Puff Injection Coupled with Lean Six Sigma Approach at Field X [PDF]

, 2021
Increasing demand of oil in Indonesia is in contrast with the decreasing oil production every year. Enhanced oil recovery (EOR) has become one of the most favorable method in maximizing the production of mature fields with various applications and ...
Amrullah, Muhammad Rizki, Aziz, Prasandi Abdul, Chandra, Steven, Daton, Wijoyo Niti   +3 more
core   +1 more source

Multiscale NMR Characterization in Shale: From Relaxation Mechanisms to Porous Media Research Frontiers

Energy Science &Engineering, Volume 13, Issue 11, Page 5777-5798, November 2025.
ABSTRACT Nuclear magnetic resonance (NMR), as an advanced non‐destructive and rapid measurement technology, has shown unique advantages in the evaluation of unconventional shale reservoirs. This paper systematically introduces the fundamental principles of NMR spectroscopy and relaxation theory in porous media and comprehensively analyzes the ...
Long Zhou, Guangzhi Liao, Ruiqi Fan, Rui Mao, Xueli Hou, Nan Li, Zhilong He, Yushu Zhang, Lizhi Xiao   +8 more
wiley   +1 more source

Study on optimization and mechanism of CO2 injection to enhance oil recovery in mid-deep heavy oil reservoirs

Frontiers in Energy Research
In order to improve the oil recovery of mid-deep heavy oil reservoirs, this study investigates the efficiency of enhanced oil recovery and the mechanisms of oil displacement in mid-deep heavy oil reservoirs using different injected gases (N2, CH4, CO2 ...
Xiaokun Zhang, Zongyao Qi, Bojun Wang, You Zhou, Chao Wang, Changfeng Xi, Pengcheng Liu   +6 more
doaj   +1 more source

Practice and understanding of water huff-n-puff in shale oil of Subei Basin [PDF]

Youqicang pingjia yu kaifa
The production of BG shale oil Block of Jinhu Sag of Subei Basin declines rapidly after fracturing, showing poor development efficiency. Enhancing the estimated ultimate reserves（EUR） of individual wells during later depletion stages is crucial for ...
XU Guochen,DU Juan,ZHU Mingchen
doaj   +1 more source

Evaluación de la recuperación mejorada de petróleo con CO2 en formaciones de baja permeabilidad con fracturas de geometría compleja [PDF]

, 2022
Descargue el texto completo en el repositorio institucional de la University of Texas at Austin: http://hdl.handle.net/2152/39374Analiza la eficacia de la inyección de CO₂ como método de recuperación mejorada en formaciones de baja permeabilidad.
Zuloaga Molero, Pável
core   +1 more source

Exogenous and Endogenous Displacements in 3D Porous Media

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Gas displacement is ubiquitous in engineering applications and natural phenomena. Compared to exogenous displacement, studies on endogenous displacement within 3D porous media remain scarce. This study investigates gas invasion and gas exsolution by depressurizing CO2‐saturated solution in specimens with distinct wettability.
Lei Liu, Yingbo Jiang, Xiangbo Gao, Rongrong Tian, Feiyan Jin, Mengwei Liu, Lingzao Zeng, Liang Lei   +7 more
wiley   +1 more source

Field tests of CO2 huff-n-puff technology in Nanchuan normal-pressure shale gas field

Shiyou shiyan dizhi
Due to the high proportion of adsorbed methane and weak formation energy, the recovery rate of normal-pressure shale gas reservoirs is generally less than 30%.
Yuqiao GAO, Yongwang ZHENG, Lina ZHANG, Jianhua REN, Yaozu ZHANG, Dazhi FANG   +5 more
doaj   +1 more source

Exploitation of fractured shale oil resources by cyclic CO2 injection

Petroleum Science, 2018
With shale oil reservoir pressure depletion and recovery of hydrocarbons from formations, the fracture apertures and conductivity are subject to reduction due to the interaction between stress effects and proppants.
Tao Wan, Hong-Xian Liu
doaj   +1 more source

Analysis of IOR Pilots in Bakken Formation by using Numerical Simulation [PDF]

, 2017
Bakken is the most productive formation among unconventional plays in North America. This formation has 7.4 billion barrels of recoverable oil. However, the primary oil recovery is still low as 5-10%.
Alfarge, Dheiaa, Alsaba, Mortadha, Bai, Baojun, Wei, Mingzhen   +3 more
core   +2 more sources

CO2 Oil Displacement and Geological Storage Status and Prospects

Energy Science &Engineering, Volume 13, Issue 2, Page 475-511, February 2025.
In this review, the mechanisms of CO2 oil displacement and geological storage were described, and research methods, key technologies, and so forth were discussed in detail. At the same time, the on‐site application status of CO2 displacement technology in western countries and China was compared, and the existing problems were analyzed, and the future ...
Fengqi Tan, Ruihai Jiang, Chunmiao Ma, Yuqian Jing, Kai Chen, Yu Lu   +5 more
wiley   +1 more source