US 10,890,058 B2
Low-frequency DAS SNR improvement
Kyle R. Krueger, Houston, TX (US); Ge Jin, Houston, TX (US); Charles C. Mosher, Houston, TX (US); Herbert W. Swan, Houston, TX (US); and Baishali Roy, Houston, TX (US)
Assigned to ConocoPhillips Company, Houston, TX (US)
Filed by CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed on Mar. 8, 2017, as Appl. No. 15/453,584.
Claims priority of provisional application 62/305,758, filed on Mar. 9, 2016.
Claims priority of provisional application 62/305,777, filed on Mar. 9, 2016.
Prior Publication US 2017/0342814 A1, Nov. 30, 2017
Int. Cl. E21B 43/17 (2006.01); G01V 1/42 (2006.01); G01V 1/30 (2006.01); G01V 1/22 (2006.01); G01H 9/00 (2006.01); E21B 47/113 (2012.01); E21B 47/135 (2012.01); E21B 43/26 (2006.01); G01V 1/48 (2006.01); G06T 17/05 (2011.01)
CPC E21B 43/17 (2013.01) [E21B 43/26 (2013.01); E21B 47/113 (2020.05); E21B 47/135 (2020.05); G01H 9/004 (2013.01); G01V 1/226 (2013.01); G01V 1/30 (2013.01); G01V 1/308 (2013.01); G01V 1/42 (2013.01); G01V 1/48 (2013.01); G06T 17/05 (2013.01); G01V 2210/1429 (2013.01); G01V 2210/624 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of optimizing production of a hydrocarbon-containing reservoir comprising:
a) collecting Low-Frequency Distributed Acoustic Sensing (LF-DAS) data from at least one well in a hydrocarbon-containing reservoir comprising:
i) recording one or more reflected datasets;
ii) converting said one or more reflected datasets into a continuous record;
iii) transforming the continuous record with a low-pass filter transform with a range of greater than 0 to 50 millihertz (mHz) to provide a transformed record;
iv) down sampling the transformed record;
v) interpreting the down-sampled transformed record to provide LF-DAS data;
b) applying at least one processing technique to said LF-DAS data to form a corrected data set
c) analyzing said corrected data set; and,
d) optimizing a production plan for producing hydrocarbons from said reservoir based on said analysis; and
e) implementing said optimized production plan to produce hydrocarbons.