Dissertation > Excellent graduate degree dissertation topics show

Fundamental Research on Azimuth Density Logging While Drilling

Author: HouShuang
Tutor: ZhangFeng
School: China University of Petroleum
Course: Earth Exploration and Information Technology
Keywords: LWD Azimuthal Density Numerical Simulation Monte Carlo method
CLC: P631.81
Type: Master's thesis
Year: 2011
Downloads: 132
Quote: 0
Read: Download Dissertation

Abstract


LWD orientation density logging method can provide the the 16 azimuthal orientation of the density of the imaging data over geological borehole interface occurrence calculation . Logging instruments In operation, the measurement of density and optical data storage in the 16 sectors surrounding a borehole . Sector data is divided into four quadrants ( upper, lower, left, right) . Instrument rotating probe density measured in four quadrants 360 ° imaging . In these 16 sectors , by calculating the density and the photoelectric coefficient to obtain the azimuth data , azimuth data can give a qualitative imaging FIG . Horizontal wells density log response while drilling orientation of the characteristics of the density logging method , the application of the Monte Carlo method , the numerical simulation of the 16 - faceted . Monte Carlo method for numerical simulation to study horizontal wells orientation , caliper , stratigraphic position of the interface , the gap , different density of the formation , formation thickness , and tilted strata inclination factors , analog ( 137 ) Cs radioactive sources gamma field distribution under the different formation conditions and determine the density tool while drilling orientation detection energy window size and spacing , as well as the logging methods of probing depth . Preliminary studies in the case of the type of the gap , as the gap increases , the density logging long and short spacing count rate is reduced accordingly , and their ratio increases accordingly , three detectors compensation for its effects, and simulate obtained the best source of the third detector from the position . In the case of different stratigraphic thickness , the short -spaced detector count rate decreases with the increase of the thickness of debris ; with the the drill orientation density logging , with the increase of the stratigraphic thickness , long, short spacing gamma counting the rate ratio is gradually increased. Oblique formations , by changing the type of the inclination angle of the inclined strata , to study the response relationship and using the data obtained in the 360 ??° azimuth imaging and imaging processing method , so as to obtain the density of the formation , inclination and stratigraphic thickness the parameters laid the foundation to achieve the real - time logging methods geosteering . By numerical simulation of horizontal wells while drilling orientation density log response and influencing factors made ??an in-depth study to establish a theoretical foundation for the implementation of the method of density logging while drilling orientation and explanations .

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Transient Thermal Analysis of Multi-Body System with Complicated Boundary Conditions,TK124
  10. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  11. Numerical Simulation of Biomass Direct Reburning,TK16
  12. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  13. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  14. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  15. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  16. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  17. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  18. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  19. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  20. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  21. American Option Pricing under Stochastic Market Option Model Based on Dividend and Treatment Fees,O211.6

CLC: > Astronomy,Earth Sciences > Geology > Geology, mineral prospecting and exploration > Geophysical exploration > Underground geophysical > Borehole measurements
© 2012 www.DissertationTopic.Net  Mobile