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A non-destructive method for mapping formation damage M.A. Khan a,*, S.Z. Jilani b,c
 

Summary: A non-destructive method for mapping formation damage
M.A. Khan a,*, S.Z. Jilani b,c
, H. Menouar c
, A.A. Al-Majed b,c
a
Center for Applied Physical Sciences, The Research Institute, King Fahd University of Petroleum and Minerals, KFUPM Box 1947, Dhahran 31261,
Saudi Arabia
b
Department of Petroleum Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
c
Center for Petroleum and Minerals, The Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
Received 19 February 2001; accepted 28 March 2001
Abstract
Applicability of an ultrasonic method for non-destructive mapping of formation damage is reported for the rst time. Oil-satu-
rated and `mud'-damaged Berea rock samples were prepared in the laboratory using a leak-o apparatus and machined dry rocks.
The depth of `mud invasion' was monitored under varying conditions of overbalanced pressure DP and contamination time DT. An
interesting observation is that a region of DP $ 2:07 103
kPa produces minimum invasion depth under the conditions investigated.
The results are discussed in the context of horizontal wells. 2001 Elsevier Science B.V. All rights reserved.
PACS: 81.70 Dw; 43.35+d; 91.60 Lj; 62.65+k

  

Source: Al-Majed, Abdulaziz Abdullah - Center for Petroleum and Minerals at the Research Institute & Department of Petroleum Engineering, King Fahd University of Petroleum and Minerals

 

Collections: Fossil Fuels