Use of pulsed neutron logging to evaluate perforation washing

Details Use of pulsed neutron logging to evaluate perforation washing Use of pulsed neutron logging to evaluate perforation washing

1981-12-04

1984-07-10

Howell, Janice A.

Radiant energy

Geological testing or irradiation

Well testing apparatus and methods

166312, G01V 510

Patent

active

044594801

ABSTRACT:
An improved method of locating and measuring voids behind casings of wells in unconsolidated formations is disclosed featuring first and second logging operations carried out before and after perforation washing respectively to locate voids. The voids may thereafter be filled using conventional gravel packing techniques. In a preferred embodiment pulsed neutron logging is the logging tool chosen, and a washing fluid having a high neutron absorption cross-section is used.

REFERENCES:
patent: 3558888 (1971-01-01), Youmans
patent: 3628011 (1971-12-01), Wyman
patent: 3838279 (1974-09-01), Schultz et al.
patent: 4046197 (1977-09-01), Gruesbeck, Jr. et al.
patent: 4281712 (1981-08-01), Murphy et al.
The Thermal Decay Time Log, Schlumberger, Log Interpretation, vol. 1-Principles, 1972 Edition, pp. 61-68.

Affiliated with

Also associated with

Rating

Use of pulsed neutron logging to evaluate perforation washing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of pulsed neutron logging to evaluate perforation washing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of pulsed neutron logging to evaluate perforation washing will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1577859