Invention Application
- Patent Title: MONITORING MATRIX ACIDIZING OPERATIONS
- Patent Title (中): 监测基质酸化操作
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Application No.: US14550168Application Date: 2014-11-21
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Publication No.: US20160024914A1Publication Date: 2016-01-28
- Inventor: Mehdi Ghommem , Reza Taherian , Stephen John Remane Dyer , Xiangdong Qiu
- Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
- Main IPC: E21B49/00
- IPC: E21B49/00 ; G01V1/40 ; E21B43/25 ; G01V3/20

Abstract:
A logging tool is disposed in a wellbore during an acidizing operation. The logging tool may be an acoustic tool, a resistivity tool, or a neutron tool. Measurements are made using the logging tool on a region of a formation penetrated by the wellbore and being subjected to the acidizing operation. A formation property is inferred at one or more depths of investigation within the region using the measurements, and acidizing operation management decisions are made based on the determined inferred property. The inferred property may also be simulated. A minimized difference between the inferred formation property and the corresponding simulated formation property is determined, and acidizing operation management decisions are made based on the determined difference. The inferred property may be acoustic velocity, conductivity peak observation time, near-to-far detector count ratio, or porosity. An acidizing operation management decision may be to maintain, increase, or decrease an acid injection rate.
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