声波测井新方向 看哈里伯顿的Xaminer正交偶极测井

Halliburton introduces the XaminerSM Sonic Service, an evolution in acoustic formation evaluation that provides operators with high-fidelity data and advanced processing capabilities to more accurately characterize a wide range of reservoirs, including those in deep water along with mature fields and unconventionals.

The Product of Superior Technology

The Xaminer Sonic service provides simultaneous monopole and crossed-dipole sonic information. P-wave and S-wave slowness can be obtained in formation conditions ranging from poorly consolidated high-porosity gas-saturated sandstones to low-porosity carbonates. The flexural wave energy is propagated from two low-frequency shaker sources with unprecedented modal purity.

The XaminerSM Sonic crossed-dipole acoustic service makes it easy to determine fast and slow shear-wave traveltimes and their orientation in the formation. With the Xaminer Sonic service, you can calculate minimum and maximum principal stresses and stress field orientation by combining oriented slowness data with overburden and pore-pressure data. This information is vital for geomechanical analysis, wellbore stability, and productionenhancement treatment design.

The low-frequency flexural wave travels at the true shear slowness of the formation. The flexural-wave data dispersion analysis provides information about both the near and far fields. The acoustic tool boasts four broadband MP sources that provide enhanced flexibility in run designs as well as options for cement bond and casing evaluation, along with advanced Stoneley applications, such as invaded zone calculation, acoustic imaging, and vertical transverse isotropy measurement.

Sonic anisotropy and the orientation of the anisotropy can be used to determine the orientation of natural fractures. Sonic attributes, such as P-wave slowness, fast and slow shear-wave traveltime, identification of compressive fluids in the pore space, and anisotropy orientation, allow for better 3D seismic analysis.

Benefits

• Long-spacing monopole and dipole sources provide investigations of sonic slowness measurements in both the near and far fields.
• Multiple monopole sources enable the characterization of the formation with continuous regular sampling from 1 to 20 ft of transmitter to receiver distances.
• Broadband 13-level, 8-receiver array for high-quality waveform data; all 624 (6 firings, 104 receivers) waveforms for each set of transmitter firings are recorded in tool memory for advanced waveform processing techniques
• The Xaminer Sonic service can be combined with all LOGIQ® openhole tools.
• The shaker sources provide a clean source signal：No need for dispersion corrections for slow shear-slowness determination，the capability of firing down to low frequency enables the Xaminer Sonic service to log in slownesses up to 1,500 us/ft.
• Real-time telemetry data delivers fast and reliable delta-t of formation for compressional, dipole shear, and Stoneley on-site.
• Memory data stored in the tool can be accessed on surface without requiring power through the wireline cable, and delivers the highest quality waveforms for use in advanced post-processing.