Method and apparatus for detecting and evaluating borehole wall fractures

Patent · Tue Sep 26 00:00:00 EDT 1989

OSTI ID:7014432

Danbury, K H; Brie, A; Plumb, R A

This patent describes a method for forming a display log of an acoustic investigation of an earth formation penetrated by a borehole with a tool which generates sonic pulses and produces different receiver waveforms respectively representative of sonic waves passed through a common interval alongside the tool. It comprises: measuring from the different waveforms values of a parameter that is representative of a characteristic of the earths formation; assigning predetermined lateral display log position for the parameter values measured from waveforms attributable to a common interval; and recording the parameter values on the display log.

• Assignee: Schlumberger Technology Corp., Ridgefield, CT
• Patent Number(s): US 4870627
• Application Number: PPN: US 6-686127A
• OSTI ID: 7014432
• Resource Relation: Patent File Date: 26 Dec 1984
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
03 NATURAL GAS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
NATURAL GAS WELLS
ACOUSTIC MEASUREMENTS
OIL WELLS
DISPLAY DEVICES
RECORDING SYSTEMS
SONIC PROBES
TESTING
COMPUTER OUTPUT DEVICES
COMPUTER-GRAPHICS DEVICES
PROBES
WELLS
020300* - Petroleum- Drilling & Production
030300 - Natural Gas- Drilling
Production
& Processing
990200 - Mathematics & Computers