This paper presents empirical correlations for the diameter of filtrate invasion, "DI", and for the true formation resistivity, RT, as a function of mud properties, exposure times, and formation properties. To obtain the correlations, "DI" and RT values were calculated using Dual Induction Laterolog-8 logs through 676 zones from 26 wells. These wells were from Oklahoma, Texas, Arkansas, Kansas, and New Mexico. These "DI" and RT values were independently correlated with drilling and logging parameters which will normally be available to the log analyst. Most of the parameters are usually available on the logs or log headings, while a few require access to the drillers logs. Correlations were made both with and without the driller's log parameters with very little difference in accuracy. Equations were obtained which predicted "DI" with an average absolute deviation of 41.8 percent which in turn yielded an average absolute deviation of 13.1 percent for RT when good values are available for RXO and RILD, the deep induction log readings. Though these results are not as accurate as hoped for, they are significantly better than those obtained using our data in the equations of earlier investigators. The correlations are not oriented for hand calculations, but are readily adapted to a computer logging program
Skip Nav Destination
SPWLA 8th Annual Logging Symposium
June 12–14, 1967
Denver, Colorado
A Study Of Invasion Diameter Available to Purchase
James C. Albright
James C. Albright
Continental Oil Company
Search for other works by this author on:
Paper presented at the SPWLA 8th Annual Logging Symposium, Denver, Colorado, June 1967.
Paper Number:
SPWLA-1967-O
Published:
June 12 1967
Citation
Miesch, E.P., and James C. Albright. "A Study Of Invasion Diameter." Paper presented at the SPWLA 8th Annual Logging Symposium, Denver, Colorado, June 1967.
Download citation file:
Sign in
Don't already have an account? Register
Personal Account
You could not be signed in. Please check your username and password and try again.
Could not validate captcha. Please try again.
Pay-Per-View Access
$10.00
Advertisement
7
Views
Advertisement
Suggested Reading
Advertisement