Invention Grant
- Patent Title: Enhancing complex fracture geometry in subterranean formations, sequential fracturing
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Application No.: US15754574Application Date: 2015-09-23
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Publication No.: US10428633B2Publication Date: 2019-10-01
- Inventor: Philip D. Nguyen , Matthew Lewis Lahman , Jesse Clay Hampton , Vladimir Nikolayevich Martysevich , Stephen Byrne Persac , Shea Nicholas Evans
- 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: McGuireWoods LLP
- International Application: PCT/US2015/051632 WO 20150923
- International Announcement: WO2017/052529 WO 20170330
- Main IPC: E21B43/267
- IPC: E21B43/267 ; C09K8/62 ; C09K8/80 ; E21B47/06

Abstract:
Methods including introducing a first high-viscosity treatment fluid (HVTF) into a subterranean formation through an opening and applying incrementally increased fracturing rate steps (IIFRSs) to the first HVTF to create or enhance a dominate fracture, wherein between each IIFRS applied to the first HVTF a downhole pressure slope over time will increase, decline, or stabilize at a first HVTF measured pressure slope. Evaluating the first HVTF measured pressure slope prior to applying a subsequent IIFRS to the first HVTF. Introducing a first low-viscosity treatment fluid (LVTF) through the opening to create or enhance a secondary azimuth fracture extending from the dominate fracture, and introducing a low-viscosity diversion fluid pill (LVDF) pill through the opening to create a fluidic seal therein.
Public/Granted literature
- US20180252084A1 ENHANCING COMPLEX FRACTURE GEOMETRY IN SUBTERRANEAN FORMATIONS, SEQUENTIAL FRACTURING Public/Granted day:2018-09-06
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