Difference between revisions of "Decline Curve Analysis"

Revision as of 12:10, 26 October 2017

Decline Curve Analysis DCA is an empirical method for rate decline analysis and rate forecasting published by Arps in 1945 ^[1].

DCA is applied for Wells and Reservoirs production forecasting.

General form equation:

q(t) = \frac{q_i}{(1+b\ D_i\ t)^{1/b}}

Q = \frac{q^b_i}{D_i\ (1-b)} (q^{1-b}_i-q(t)^{1-b})

↑ Arps, J. J. (1945). "Analysis of Decline Curves". Transactions of the AIME. Society of Petroleum Engineers. 160 (01).

@@ Line 10: / Line 10: @@
 General form equation:
-:<math>q(t) = \frac{q_i}{(1+b\ D_i\ t)^{1/b}}</math>,                      <math> Q = \frac{q^b_i}{D_i\ (1-b)} (q^{1-b}_i-q(t)^{1-b})</math>
+:<math>q(t) = \frac{q_i}{(1+b\ D_i\ t)^{1/b}}</math>
+:<math> Q = \frac{q^b_i}{D_i\ (1-b)} (q^{1-b}_i-q(t)^{1-b})</math>
 == References ==