1887

Abstract

A new method to locate nearby boreholes using acoustic imaging is presented. The challenge of locating a nearby well from a borehole is commonly addressed with electromagnetic (EM) or passive magnetic ranging methods, which can suffer from poor resolution and penetration and require the presence of a conductive or magnetic casing. Single-well acoustic imaging has great potential for locating a nearby borehole at higher resolution and with fewer of the limitations of EM-based methods. Acoustic imaging requires only an impedance contrast between the target object and the formation, which is adequately provided by the presence of a fluid-filled borehole. Two tests are shown demonstrating the capabilities of the new method. In the first test, a vertical borehole is located and imaged from a nearby horizontal well, and in the second test, a vertical borehole is imaged from a nearby near-vertical well. In both cases the estimated distances were validated by independent measurements.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20148264
2012-06-04
2020-05-29
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20148264
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error