A5116568494- Drilling and Well Engineering
- Tunneling and Rock Mechanics
- Geochemistry and Geologic Mapping
- Advanced machining processes and optimization
- Hydrocarbon exploration and reservoir analysis
- Geotechnical and Geomechanical Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Geological Modeling and Analysis
- Geophysics and Sensor Technology
- Dynamics and Control of Mechanical Systems
- Mineral Processing and Grinding
- Electromagnetic Launch and Propulsion Technology
- Reservoir Engineering and Simulation Methods
- Rock Mechanics and Modeling
- Plasma Diagnostics and Applications
- Geological and Geochemical Analysis
- Mineralogy and Gemology Studies
- Metal Extraction and Bioleaching
- Mechanics and Biomechanics Studies
- Oil and Gas Production Techniques
- Experimental and Theoretical Physics Studies
- Hydraulic and Pneumatic Systems
- Pulsed Power Technology Applications
- Geochemistry and Geochronology of Asian Mineral Deposits
China University of Geosciences (Beijing)
2019-2024
Sinopec (China)
2013-2023
Ministry of Natural Resources
2019-2022
In the oil drilling process, measurement-while-drilling system is usually used to provide real-time monitoring of position and orientation bottom hole. Usually drill string attitude measured on condition that static. Particularly, in rotary steerable application, it a challenging problem accurately measure spatial (inclination, azimuth, tool face) with rotating. A set "strap-down" measurement was developed this paper, triaxial accelerometer fluxgate were installed near bit, well deviation...
The pendulum model is a classic in physics and has important theoretical practical significance. In the actual application process of engineering, characteristic that simple tendency to always be stable towards low side gravitational potential energy often used design corresponding deformation mechanism as sensing or control component. this paper, structure based on analyzed, nonlinear dynamic under variable damping established according force analysis. Due complexity its analytical...
Abstract. Vibration and high shock are major factors in the failure of downhole tools. It is important to study causes vibration formation prevent drillstring bottom hole assembly (BHA). At present, it generally recognized that main reason for failure, especially lateral vibration. In this paper, tool Rotary Steering Drilling System (RSS) calculation model was established based on secondary development ABAQUS software. Starting from initial configuration drilling tool, considering contact...
In the production process of oil and gas wells, migration solid particles, such as mud sand, often leads to screen pipe clogging, resulting in reduction or even shutdown. Controlled plasma pulse plugging removal technology is a new physical method for unplugging. Plasma, generated by electrical explosion wire, then triggers shock wave, which can remove plugging. this paper, performance controllable evaluated simulating state downhole through laboratory experiments. The test results plate...
In the oil and gas drilling engineering, measurement-while-drilling (MWD) system is usually used to provide real-time monitoring of position orientation bottom hole. Particularly in rotary steerable technology application, it a challenge measure spatial attitude drillstring accurately real time while rotating. A set “strap-down” measurement was developed this paper. The triaxial accelerometer fluxgate were installed near bit, inclination azimuth can be measured Furthermore, mathematical...
The Weilasituo-bairendaba district is located at the eastern end of Central Asian Orogenic Belt, which an important component Cu-Pb-Zn polymetallic metallogenic belt on Western slope Greater Xing’an Range in Inner Mongolia, China. known Cu-Zn deposits such as Weilasituo deposit and Bairendaba Ag-Pb-Zn are same tectonic-magmatic product. district’s structure framework consists NE-trending regional faults, while secondary faults provide channels space for mineralization. ore-bearing rocks...
Mechanical automatic vertical drilling tools (MAVDT) have gradually gained attention as a tool that can achieve active correction in harsh working environments such high temperature and pressure. The gravity sensing mechanism sense the deviation convert signal into control to drive actuator correct deviation. It is core component of mechanical tool. This paper analyzes force on based structural analysis Then, general dynamic equation established D’Alembert principle. critical response...
Abstract In the oil drilling process, measurement-while-drilling (MWD) system is usually used to provide real-time monitoring of position and orientation bottom hole. Particularly, in rotary steerable technology application, how accurately measure spatial attitude (inclination, azimuth, tool face) real time while drill string rotating a challenging problem. Current MWD surveying performed along well path at stationary survey stations, because that shows complex characteristics due combined...
Abstract. In this paper we analysis of the dynamic model Rotary Steerable System (RSS) with a single stabilizer and flex-sub. The drill collar joint are simplified to obtain suitable bottom-hole assembly (BHA) mechanical finite element analysis. Using BHA uniform stiffness assumption (ignoring influence variable section in BHA), takes method longitudinal transverse bending continuous beam analyse stress RSS flex-sub under different inclination angles curvature conditions. addition, is...
During the operation of drill string, it displays a degree flexibility. Simultaneously, its dynamic properties, influenced by complex stress conditions, manifest nonlinearity and uncertainty. A comprehensive investigation into dynamics flexible strings is imperative for deep well drilling. This paper presents model that simulates random interactions between string borehole wall, simplifying actual using analogous principles. Dynamic simulation software utilized analysis, an indoor...
Most turbine designs are based on the continuous rotating structure. In this paper, a novel hydraulic balanced (HBT) with symmetrical blade structure that can be used in hydro-environment is proposed. The turbine, which uses impact of nozzle jet and design stability control, could to control certain applications, e.g. drilling engineering. This completely new way thinking about design. Because special HBT, when deviates from balance position, HBT will restored position under action external...
Abstract Drillstring vibrations are an important cause of premature failure drillstring components and drilling inefficiency, in particular, torsional vibration is more important. A large amount research on has been conducted the last few decades. Stick/slip a severe type oscillation that affects efficiency process can bit damage as well failure. For rotary steerable system (RSS), stick-slip introduced new mechanism to explain amplitude drillstring. we aim for improved understanding causes...