Seismic inversion is one of the important methods to realize reservoir prediction in oil and gas field exploration. The seismic stochastic based on Metropolis-Hastings algorithm makes full use well logging data improves vertical resolution results. However, conventional has slow convergence speed poor stability. In this paper, an elastic impedance method optimized established by combining quant...

Geophysical survey methods bring information on the rock environment in real time, i.e. already during the geophysical survey. A geologist or a geotechnician provides such obtained information to a designer for the purpose of designing and implementation work at construction sites. Also, information on the effect of the rock environment or its properties (changing with time) on stabilization wo...

We have now completed the second year of the Full Waveform Acoustic Logging Consortium. During these two years, we have developed a good understanding of seismic wave propagation in a borehole through both theoretical modelling and data interpretation. If we were to make a simple statement about the full waveform acoustic log, it would be that the method has far greater potential for determinin...

Deepwater field development requires drilling of deviated or horizontal wells. Most formations encountered can be highly anisotropic and Pand S-wave velocities vary with propagation directions. Sonic logs acquired in these wells need to be corrected before they can be applied in formation evaluation and seismic applications. In this study, we make use of a laboratory model made of an approximat...

Low-frequency acoustic-energy sources for waveform logging have important applications in: 1) Verifying theoretical calculations; 2) generating tube waves in large-diameter boreholes; and 3) providing larger sample volumes in cases where borehole effects are important. A new low-frequency source was fabricated by modifying an existing acoustic-waveform logging system to discharge multiple capac...

Thin sandstone reservoirs of the fan delta front sub-facies occur in early Neogene (Miocene) series Aketao (Akto) structural belt within Kunlun piedmont zone Tarim Basin. Oil and gas this area correspond to stratigraphic traps. However, owing low density 2D seismic survey grid deployed belt, inferior data quality, lack well logging data, reservoir prediction suffers from a multiplicity problems...

We estimate shear-wave velocities in the shallow subsurface throughout Japan by applying seismic interferometry to the data recorded with KiK-net, a strongmotion network in Japan. Each KiK-net station has two receivers; one receiver on the surface and the other in a borehole. By using seismic interferometry, we extract the shear wave that propagates between these two receivers. Applying this me...

Shale is a crucial natural gas resource, attracting global exploration and development interest. China has abundant shale resources that will drive future oil advances by increasing reserves production. The WY field the most productive greatest potential for development. This study analyzed high-quality logging response characteristics drilling logging, seismic, analytical test data in area to ...