Results 41 to 50 of about 207,684 (127)

Pore Preservation and Failure Mechanism of Sinian Dengying Formation Carbonate Reservoirs: A Case Study of Two Ultradeep Wells in the Sichuan Basin, Western China

open access: yesGeofluids, 2021
Despite being one of the most important factors in deep oil and gas exploration, the preservation mechanisms of ultradeep carbonate reservoirs remain poorly understood.
Zeqi Li   +10 more
doaj   +1 more source

Pore types and microstructure of the black shale in the Lower Silurian, Southeast of Chongqing, China

open access: yesFrontiers in Earth Science, 2023
The Lower Silurian black shale in the Southeast of Chongqing is of great potential in the accumulation of shale gas in South China. In order to understand the pore system of these black shales, mercury porosimetry, surface area study, mineralogy and ...
Juan Li   +12 more
doaj   +1 more source

Cool Kitchen: Processing Starch and Eggshell Powder into Sustainable Coatings for Passive Daytime Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A food‐grade cooling composite made from starch and recycled eggshell powder offers a scalable, ultra‐low‐cost solution for passive daytime radiative cooling. Easily prepared using basic kitchen tools, this material empowers communities, even in areas with limited infrastructure, to stay cooler during worsening summer heat waves.
Qimeng Song   +3 more
wiley   +1 more source

Expansion of Micro-Annulus at the Second Cementing Interface During Construction of Underground Gas Storage From Old Well

open access: yesShiyou jixie
Debonding may occur at the second cementing interface during construction of underground gas storages (UGSs) from old wells. Based on the fluid-solid interaction theory and the cohesive zone model (CZM), the Cohesive unit in ABAQUS was used to establish ...
Li Changyou, Zhang He, Li Chen, Yao Siyu
doaj   +1 more source

Drilling Parameter Optimization of Shale Gas Wells Based on Saw-Tooth Genetic Algorithm to Reduce Drilling Costs

open access: yesGeofluids, 2023
It is difficult to optimize the drilling parameters, which makes it difficult to reduce drilling costs in the process of drilling shale gas wells in the Fuling region of Chongqing, China.
Kai Bai   +4 more
doaj   +1 more source

Effectiveness Research of Physical and Chemical Methods Appfication for Oil Recovery Enhancing Using the ASP for the Strutynsky Oil Field Conditions

open access: yesManagement Systems in Production Engineering, 2020
The purpose of the article is to enhance the oil recovery coefficient of lower Menilite deposits of the Strutynsky oil field by using an ASP solution (a mixture of three agents: alkaline, surfactant and polymer (ASP)).
Moroz Lesya   +4 more
doaj   +1 more source

Numerical simulation on fracturing fluid flowback from post-fracturing shale gas wells and influencing factors

open access: yesJournal of Petroleum Exploration and Production Technology
Fracture network fracturing is a key technology to achieve economic and effective development of shale gas. The flowback data after hydraulic fracturing is crucial to the characterization of hydraulic fracture networks and reservoir evaluation.
Dengji Tang   +8 more
doaj   +1 more source

Nonlinear Seepage Characteristics and Microscopic Oil Displacement Visualization Experiment of Highly Viscoelastic Polymer

open access: yesGeofluids
Understanding the nonlinear seepage behavior and microscopic displacement mechanisms of highly viscoelastic polymers is essential for optimizing polymer flooding in heterogeneous reservoirs.
Lina Shi   +6 more
doaj   +1 more source

Establishment of General Oil Pipeline Scheduling Model and Research on Interface Tracking Calculation Method [PDF]

open access: yesE3S Web of Conferences
In order to understand the establishment of oil pipeline scheduling model and interface tracking calculation method, a research on the establishment of a universal product oil pipeline scheduling model and interface tracking calculation method has been ...
Shen Liang   +5 more
doaj   +1 more source

Development and application of dynamic prediction software for pigging process of natural gas pipelines

open access: yesYou-qi chuyun
[Objective] China's backbone natural gas pipeline network comprises numerous large-diameter and long-distance pipelines.Periodic pigging operations play a crucial role in ensuring the safe, stable and efficient operation of these pipelines.
PENG Yang   +6 more
doaj   +1 more source

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