US2015198015A1PendingUtilityA1
Method Of Utilizing Subterranean Formation Data For Improving Treatment Operations
Assignee: SCHLUMBERGER TECHNOLOGY CORPPriority: Dec 20, 2010Filed: Mar 26, 2015Published: Jul 16, 2015
Est. expiryDec 20, 2030(~4.4 yrs left)· nominal 20-yr term from priority
E21B 47/00E21B 41/0092E21B 43/25E21B 47/06E21B 49/00
29
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Claims
Abstract
Disclosed is a method in which subterranean formation data such as, but not limited to, pressure, mobility or permeability data is acquired while drilling and stored. The data is utilized to improve the design, the progress, and the evaluation of a subsequent wellbore treatment. The wellbore treatment may be conducted and monitored utilizing fiber optic enabled coiled tubing or the like.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A method usable in an oilfield, comprising:
drilling a wellbore into a subterranean formation; acquiring and storing data related to the subterranean formation while drilling; calculating a profile related to a property of the subterranean formation utilizing the acquired data; performing a treatment operation in the wellbore; measuring data related to the treatment operation; comparing the measured data to the profile; and improving the treatment operation based on the comparison.
2 . The method of claim 1 wherein acquiring comprises acquiring one of formation permeability data and fluid mobility data.
3 . The method of claim 1 further comprising acquiring data with a logging while drilling tool.
4 . The method of claim 1 wherein acquiring comprises acquiring data with a formation pressure while drilling tool having an extendable sample probe.
5 . The method of claim 1 wherein the data related to the treatment operation comprises a remaining damage of the subterranean formation causing a skin effect.
6 . The method of claim 1 wherein calculating a profile comprises utilizing the acquired data to calculate an expected injection/production profile at an end of the treatment operation.
7 . The method of claim 1 wherein performing comprises one of selecting an acid type and selecting a volume of acid utilizing the acquired data.
8 . The method of claim 7 wherein selecting is based on information about the heterogeneity of the subterranean formation in terms of transmissibility.
9 . The method of claim 1 wherein improving comprises adjusting treatment fluid delivery based on the comparison of the measured data to the profile.
10 . The method of claim 1 wherein performing comprises performing a matrix acidizing operation.
11 . The method of claim 1 wherein performing comprises performing an operation with fiber optic enabled coiled tubing.
12 . The method of claim 11 wherein measuring comprises measuring with the fiber optic enabled coiled tubing.
13 . The method of claim 11 wherein measuring comprises performing distributed temperature sensing (DTS) with the fiber optic enabled coiled tubing.
14 . The method of claim 11 wherein acquiring comprises acquiring one of formation permeability data and fluid mobility data, the method further comprising evaluating the treatment operation by comparing DTS data with the one of permeability data and fluid mobility data.
15 . The method of claim 14 further comprising gathering production data from the wellbore and comparing the production data with one of the permeability data, the fluid mobility data, and the DTS data.
16 . The method of claim 1 further comprising evaluating the treatment operation using the profile.
17 . The method of claim 16 wherein evaluating comprises comparing DTS data and production data.
18 . A method usable in an oilfield, comprising:
drilling a wellbore into a subterranean formation; acquiring and storing pressure data related to the subterranean formation while drilling; estimating information about the heterogeneity of the subterranean formation in terms of transmissibility utilizing the acquired data; designing a treatment operation utilizing the estimated heterogeneity; and performing the treatment operation in the wellbore.
19 . The method of claim 18 wherein selecting comprises one of selecting an acid type and selecting a volume of acid.
20 . The method of claim 18 further comprising calculating a profile related to permeability of the subterranean formation utilizing the acquired data.Join the waitlist — get patent alerts
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