Invention Grant
- Patent Title: Methods and systems for characterizing and/or monitoring wormhole regimes in matrix acidizing
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Application No.: US15568173Application Date: 2015-05-29
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Publication No.: US10774638B2Publication Date: 2020-09-15
- Inventor: Chaitanya Mallikarjun Karale , Mohammed Monsur Alam
- Applicant: Halliburton Energy Services, Inc.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Baker Baker L.L.P.
- Agent Thomas Rooney
- International Application: PCT/US2015/033166 WO 20150529
- International Announcement: WO2016/195623 WO 20161208
- Main IPC: E21B49/00
- IPC: E21B49/00 ; C09K8/72 ; E21B43/26 ; G06F30/00 ; E21B47/003 ; E21B41/00 ; E21B49/08

Abstract:
Methods and systems for designing, monitoring, and/or performing acidizing treatments in subterranean formations are provided. In certain embodiments, the methods comprise: determining a wellbore pressure and a fluid flow distribution for an acidizing fluid introduced into a portion of a subterranean formation; determining a breakthrough pore volume at a plurality of depths in the formation to provide a PVBT curve; determining whether a slope of the PVBT curve at a point corresponding to a first flow rate of the acidizing fluid in the subterranean formation is indicative of a compact dissolution regime, e.g., is less than zero or a minimum point of a range of tolerance thereof; and, if so, identifying a second flow rate for introducing the acidizing fluid into the interval of the well bore that is greater than the first flow rate.
Public/Granted literature
- US20180080316A1 METHODS AND SYSTEMS FOR CHARACTERIZING AND/OR MONITORING WORMHOLE REGIMES IN MATRIX ACIDIZING Public/Granted day:2018-03-22
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