Re-Fracturing vs. CO2 Huff-n-Puff Injection in a Tight Shale Reservoir for Enhancing Gas Production [PDF]
Frontiers in Energy Research, 2023 Field production data indicate that the shale gas production rate decreases sharply after a few years of the first fracking. Feasible enhanced gas recovery (EGR) approaches are very necessary to be investigated.
Dong Wang +5 more
doaj +3 more sources
Experimental study on the effect of foam in preventing gas channeling in shale reservoir [PDF]
Frontiers in Earth ScienceShale oil resources have enormous potential and broad development prospects in China. Especially with the rapid development of horizontal well volume fracturing technology, the production of shale oil has been greatly increased, and it has become an ...
Xiong Xiaofei +11 more
doaj +3 more sources
Investigation on the asymmetric inter-fracture asynchronous huff-n-puff technology for the horizontal well group in the tight oil reservoir [PDF]
E3S Web of Conferences, 2022 Water huff-n-puff is one of the effective energy supplement methods for the development of tight oil reservoirs by horizontal wells. However, the oil production performance of water huff-n-puff severely decreases after several cycles.
Kang Shaofei +5 more
doaj +1 more source
Energies, 2021 Duvernay shale is a world class shale deposit with a total resource of 440 billion barrels oil equivalent in the Western Canada Sedimentary Basin (WCSB).
Xiangwen Kong +5 more
doaj +1 more source
Oil Recovery Performance And Asphaltene Deposition Evaluation Of Miscible And Immiscible Carbon Dioxide Or Nitrogen Huff-n-Puff Processes In Shale Reservoirs [PDF]
, 2023 The utilization of gas enhanced oil recovery to extract oil from unconventional reservoirs has become a widely discussed topic, as it has proven to be effective in significantly boosting oil recovery rates.
Dunn-Norman, Shari +4 more
core +2 more sources
Applied Sciences, 2021 N2 huff-n-puff has proven to be a promising technique to further improve oil recovery in naturally fractured-cavity carbonate reservoirs. The effect of enhanced oil recovery (EOR) by N2 huff-n-puff is significantly affected by various dynamic and static ...
Qi Wang +4 more
doaj +1 more source
Energy Science & Engineering, 2023 In this study, nuclear magnetic resonance and computed tomography scanning were used to analyze the production law and displacement mechanism of Jimusaer continental shale oil during CO2 huff ‘n’ puff, and the optimal parameters were determined.
Chunmiao Ma +6 more
doaj +1 more source
Experimental Investigation of Asphaltene Deposition and its Impact on Oil Recovery in Eagle Ford Shale during Miscible and Immiscible Co2huff-N-Puff Gas Injection [PDF]
, 2022 One of the challenges in extracting oil from unconventional resources using hydraulic fracturing and horizontal drilling techniques is the low primary recovery rate, which is caused by the ultra-small permeability of these resources.
Elturki, Mukhtar, Imqam, Abdulmohsin
core +2 more sources
Study on the Key Influential Factors on Water Huff-n-Puff in Ultralow-Permeability Reservoir
Geofluids, 2021 Ultralow-permeability reservoirs are difficult to effectively develop using conventional technologies, so it generally produces using horizontal wells’ volume fracturing.
Xiaoyan Wang +7 more
doaj +1 more source
Frontiers in Energy Research, 2020 In this paper, viscosity reducers with viscosity reduction ability and foaming ability and the recovery efficiency in N2 huff-n-puff were studied. The optimal 4# viscosity reducer was selected by evaluating the viscosity reduction ability, emulsion ...
Lei Tao +7 more
doaj +1 more source