73 Result(s)
within
**ang-** Zheng
Energy
Fossil Fuels (incl. Carbon Capture)
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Article
Open AccessInfluences of clean fracturing fluid viscosity and horizontal in-situ stress difference on hydraulic fracture propagation and morphology in coal seam
The viscosity of fracturing fluid and in-situ stress difference are the two important factors that affect the hydraulic fracturing pressure and propagation morphology. In this study, raw coal was used to prepa...
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Article
Open AccessExperimental and numerical simulation study on forced ventilation and dust removal of coal mine heading surface
In order to study the problems of unreasonable airflow distribution and serious dust pollution in a heading surface, an experimental platform for forced ventilation and dust removal was built based on the simi...
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Chapter
Optimization of Window-to-Wall Ratio in a Transfer Hall of an Urban Integrated Transportation Hub
The window-to-wall ratio directly affects the energy consumption of the transport hub’s cooling, heating and lighting systems in a transfer hall. In this chapter, adopting the dynamic simulation method, a tran...
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Article
Open AccessMicrostructure and adhesion force of dust on soil pavement in open-pit mine
The microstructure and adhesion force between dust particles determine the dust starting and migration to a certain extent. By use of scanning electron microscopy, the BET method, and the abruption technique, ...
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Chapter and Conference Paper
Research and Application of Intelligent Auxiliary Decision-Making Platform for Lost Circulation Based on Big Data Technology
Big data/artificial intelligence technology empowers drilling engineering, which is the direction of digitization for petroleum industry. In order to study the leakage prevention and plugging intelligent auxil...
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Chapter and Conference Paper
Study on Feasibility of Surface Concentric Pipe Type Zonal Water Injection Technology in Middle East
Oilfield in Middle East has entered the middle and late stage of development. It is urgent to carry out layered water injection to supplement formation energy and improve development effect. The development st...
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Article
Open AccessAdsorption and desorption of Cd in reclaimed soil under the influence of humic acid: characteristics and mechanisms
Exogenous humus can change the content and migration activity of cadmium (Cd) in soil. Humic acid (HA) is an important soluble humus component in soil. In order to explore the relationship between cadmium poll...
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Chapter and Conference Paper
Research and Application of Downhole Oil-Water Separation and Injection Production Technology in the Same Well
China's main oilfields have entered the period of ultra-high water cut development. With the increase of water cut, the cost of produced liquid treatment is increasing, and the oilfield development is close to...
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Chapter and Conference Paper
Development Characteristics and Main Controlling Factors of Tidal Sand Bar in Estuary
The dual effects of rivers and tidal action have induced the complex sedimentary characteristics and internal structure of the tidal-controlled estuary bar, which has made it difficult to predict and develop f...
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Article
Open AccessCharacteristics of leaching of heavy metals from low-sulfur coal gangue under different conditions
Coal gangue is the main pollution source of mining areas. When coal gangue is stacked and recycled, the heavy metal elements contained in it are released by natural weathering and leaching, which causes damage...
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Article
Open AccessEffect of alkali metal ions on the formation mechanism of HCN during pyridine pyrolysis
The catalytic effects of alkali metal ions (Na+ and K+) on NOx precursor formation during coal pyrolysis were investigated using the N-containing compound pyridine as a model compound. Density functional theory c...
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Article
Open AccessTransformation of minerals at the boundary of magma-coal contact zone: case study from Wolonghu Coal Mine, Huaibei Coalfield, China
Mesozoic and Cenozoic magma activity in the Wolong Lake mining area of Huaibei is frequent, and the degree of magma intrusion into coal seams remarkable. On the one hand, magma intrusion affects the utilizatio...
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Chapter and Conference Paper
Study on Optimization and Performance Evaluation of Plugging Adjustment in Heavy Oil Compound Flooding Technology
Aiming at the problems of high water cuts in the later stages of multi-throughput and the inability to effectively develop the remaining oil between wells in ordinary heavy oil reservoirs. The development of b...
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Chapter and Conference Paper
Optimization of Water Avoidance Height in Horizontal Wells in Carbonate Bottom Water Gas Reservoirs
Water production in gas wells is extremely harmful to the development of gas reservoirs, which is mainly reflected in the fact that once the energy of gas reservoirs is insufficient, gas cannot completely car...
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Chapter and Conference Paper
A New Method for Stress Sensitivity Evaluation of Tight Sandstone Gas Reservoirs
Stress sensitivity is common in tight sandstone gas reservoirs. For gas reservoirs developed with natural energy, We should fully consider the impact of stress sensitivity on production capacity. There are two...
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Chapter and Conference Paper
Research and Field Application of New Composite Acid System for Low Permeability Sandstone Reservoir
Sandstone reservoirs in Huabei Oilfield are characterized by low porosity, low permeability, high clay content, strong heterogeneity and high reservoir temperature. In order to solve the problems of the rapid ...
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Chapter and Conference Paper
A New Method for Determining Abandonment Formation Pressure in Sulige Gas Field
Abandonment formation pressure is a key parameter for gas recovery calculation. The natural productivity of Sulige tight sandstone gas reservoir is low which requires fracturing to obtain industrial gas flow. ...
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Living Reference Work Entry In depth
Shuang 6 Multilayer Sandstone Reservoir Geology
This chapter introduces the geological properties of the Shuang 6 reservoirs, including the sequence, structure, trap tightness, sedimentary facies, and types of reservoirs. The Shuang 6 block consists of two ...
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Chapter and Conference Paper
Effective Application of Using a Combination of Wireline Techniques for Well Killing and Tubing Fishing Operations
Understanding of tubing stuck reason and free point position is critical for successful well killing and fishing operations. Combination of different static and remediation wireline techniques is key for relia...
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Chapter and Conference Paper
Segmented Well Inflow Control with Intelligent Completions: A Comparative Study
Intelligent completion, also called smart well technology, involves downhole measurements and remote well inflow control for the purposes of improved production efficiency and better reservoir management. The ...
