A5087261580- Concrete and Cement Materials Research
- Drilling and Well Engineering
- Tunneling and Rock Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Concrete Properties and Behavior
- Magnesium Oxide Properties and Applications
- Innovative concrete reinforcement materials
- Innovations in Concrete and Construction Materials
- Building materials and conservation
- Reservoir Engineering and Simulation Methods
- Layered Double Hydroxides Synthesis and Applications
- Enhanced Oil Recovery Techniques
- Concrete Corrosion and Durability
- Rock Mechanics and Modeling
- Recycling and utilization of industrial and municipal waste in materials production
- Oil and Gas Production Techniques
- Methane Hydrates and Related Phenomena
- Chemical Synthesis and Characterization
- Calcium Carbonate Crystallization and Inhibition
- Recycled Aggregate Concrete Performance
- Soil Mechanics and Vehicle Dynamics
- Transport Systems and Technology
- Microwave Dielectric Ceramics Synthesis
- Smart Materials for Construction
- Offshore Engineering and Technologies
China University of Petroleum, East China
2020-2025
Qingdao University of Science and Technology
2022
China University of Petroleum, Beijing
2019-2021
Halliburton (United Kingdom)
2012-2019
Halliburton (United States)
2013-2018
Villanova University
2006
This study investigates the effect of incorporating modified calcium carbonate whiskers, treated with tetraethyl orthosilicate (TEOS), to enhance mechanical properties and sealing integrity oil well cement under high-temperature high-pressure (HTHP) conditions. Traditional systems are prone brittleness cracking dynamic loads, leading compromised wellbore performance. Our findings demonstrate that fiber-toughened slurry improves toughness performance annulus, maintaining gas tightness cyclic...
Abstract Nanotechnology encompasses a wide scope of disciplines and nanomaterials are now being used as commercially viable solutions to technical challenges in industries ranging from electronics bio-medicine. Recently, the application solve problems oilwell cementing has begun be investigated by several different research groups oil gas industry. The following uses have been presented independent laboratories possibilities industry: (1) nanosilica nanoalumina potential accelerators; (2)...
In order to investigate the problem of long-term strength retrogression in oil well cement systems exposed high pressure and temperature (HPHT) curing conditions, various influencing factors, including sources, particle sizes silica flour, additions fume, alumina, colloidal iron oxide nano-graphene, were investigated. To simulate environment cementing geothermal wells deep wells, slurries directly cured at 50 MPa 200 °C. Mineral compositions (as determined by X-ray diffraction Rietveld...
The long-term strength retrogression of silica-enriched oil well cement poses a significant threat to wellbore integrity in deep and ultra-deep wells, which is major obstacle for petroleum geothermal energy development. Previous attempts address this problem has been unsatisfactory because they can only reduce the decline rate. This study presents new solution by incorporating fly ash traditional silica-cement systems. influences silica on behavior systems directly set cured under condition...
In this study, various raw materials, including silica sand, fume, calcium hydroxide, α-alumina, and nano-activated alumina, were used to produce hydroceramic systems with varying Ca/Si/Al ratios optimize their high-temperature resistance. The slurries, a constant density of 1.65 g/cm3, all designed have setting time more than 4 h at the condition 240 °C 50 MPa then cured same for 2, 30, 90 days evaluate long-term performances. Subsequently, compressive strength, water permeability, mercury...
Abstract Accelerators are important cementing additives in deepwater wells where low temperatures can lengthen the wait-on-cement (WOC) time, potentially increasing cost of operations. The cement set accelerators traditionally used for shortening WOC times inorganic salts, such as CaCl2. These known to have negative side effect permeability. Nanosilicas, on other hand, be advantageous compared conventional because they reduce permeability while mechanical strength cement-based materials. For...
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A comprehensive experimental investigation of Portland cement hydration kinetics in a wide temperature range from 35 °C to 150 with pressure up 50 MPa was performed by heat hydration, chemical shrinkage and ultrasonic measurements. Increasing curing found have stronger acceleration effect during the main period while increasing had pre-induction hydration. By comparing test results other methods estimating degree such as quantitative X-ray diffraction, non-evaporable water content measured...