Results 31 to 40 of about 229 (123)

Numerical Investigation of Fracture Compressibility and Uncertainty on Water-Loss and Production Performance in Tight Oil Reservoirs

open access: yesEnergies, 2019
Multi-stage hydraulic fracturing along with horizontal wells are widely used to create complex fracture networks in tight oil reservoirs. Analysis of field flowback data shows that most of the fracturing fluids are contained in a complex fracture network,
Kai Liao   +3 more
doaj   +1 more source

Multiphase Multicomponent Numerical Modeling for Hydraulic Fracturing with N-Heptane for Efficient Stimulation in a Tight Gas Reservoir of Germany

open access: yesEnergies, 2021
Conventionally, high-pressure water-based fluids have been injected for hydraulic stimulation of unconventional petroleum resources such as tight gas reservoirs.
Faisal Mehmood   +5 more
doaj   +1 more source

Mechanism of multi-stage sand filling stimulation in horizontal shale gas well development

open access: yesNatural Gas Industry B, 2018
Fracturing operations in shale gas reservoirs of the Sichuan–Chongqing area are frequented by casing deformation, failures in delivery of mechanical staging tools and other down-hole complexities. In addition, limitation in volumes of tail-in proppant in
Deqi Li   +5 more
doaj   +1 more source

Modeling Hydraulic Fracturing Using Natural Gas Foam as Fracturing Fluids

open access: yesEnergies, 2021
Stranded gas emission from the field production because of the limitations in the pipeline infrastructure has become one of the major contributors to the greenhouse effects.
Shuang Zheng, Mukul M. Sharma
doaj   +1 more source

Advancement of Hydraulic Fracture Diagnostics in Unconventional Formations

open access: yesGeofluids, 2021
Multistage hydraulic fracturing is a technique to extract hydrocarbon from tight and unconventional reservoirs. Although big advancements occurred in this field, understanding of the created fractures location, size, complexity, and proppant distribution
Ali Mahmoud   +4 more
doaj   +1 more source

Effective Stress Factor Analysis of Proppant for Multi-stage Fracturing in Horizontal Wells

open access: yesGeofluids, 2022
In order to determine the effective stress factor of proppants during the multi-stage hydraulic fracturing operation in horizontal wells and select the appropriate proppant type, the analysis of the effective stress characteristics of proppants is ...
Bo Cai   +9 more
doaj   +1 more source

Mitigating Surface Tension Effects in Multi‐Coalbed Methane Reservoirs: Case Study of Liupanshui Field

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Water locking effect caused by surface tension severely restricts coalbed methane (CBM) productivity in multilayer reservoirs. The Songhe demonstration area features main target coal seams with overpressure, high gas content, and high gas saturation, presenting favorable CBM development conditions.
Zhu Liu   +7 more
wiley   +1 more source

Flow Simulation and Influence Factors Analysis of CO2 Foam Fracturing in Annulus Injection

open access: yesFrontiers in Earth Science, 2022
CO2 foam fracturing fluid is widely used in unconventional oil and gas production because of its easy flowback and low damage to the reservoir. Nowadays, the fracturing process of CO2 foam fracturing fluid injected by coiled tubing is widely used ...
Hao Li, Genbo Peng
doaj   +1 more source

Complex Fracture Networks Prohibit Safe Fracturing Fluid Recovery

open access: yesEngineering Reports, Volume 7, Issue 2, February 2025.
ABSTRACT The recovery of fracturing fluid (HF), necessary for subsurface energy production and carbon storage, is generally low, raising concerns about HF fate in the subsurface and its potential to contaminate water aquifers. This study examines the migration of fracturing fluid and tracks its distribution in fractured reservoirs using a two ...
S. Makki, A. Yehya, E. Maalouf
wiley   +1 more source

Field experiments of different fracturing designs in tight conglomerate oil reservoirs

open access: yesScientific Reports, 2022
Mahu oilfield is currently the largest tight conglomerate reservoir in the world, where Ma-131 and Ma-18 plays are the first two commercially developed reservoirs.
Daiyan Zhang   +8 more
doaj   +1 more source

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