Invention Grant
- Patent Title: Flapper on frac plug that allows pumping down a new plug
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Application No.: US16800358Application Date: 2020-02-25
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Publication No.: US11255151B2Publication Date: 2022-02-22
- Inventor: Matthew Taylor Nichols , Nin M. Nguyen , Zachary William Walton , Michael Linley Fripp
- 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: Conley Rose, P.C.
- Agent Rodney B. Carroll
- Main IPC: E21B34/06
- IPC: E21B34/06 ; E21B33/12 ; E21B33/129

Abstract:
A zonal isolation device conveyed into the wellbore with a propped flapper valve. The zonal isolation device comprises a deformable sealing element and a support ring movably disposed within the inner bore of the sealing element. A flapper valve coupled to the support ring is configured to engage a sealing surface of support ring. The flapper valve blocks fluid flow through the zonal isolation device in a fully closed position, allows unrestricted fluid flow through the zonal isolation device in a fully open position, and allows restricted fluid flow through the zonal isolation device when held by a propping component in an intermediate or partially open position. The zonal isolation device is anchored to the wellbore by an anchoring assembly engaged with a wedge coupled to the downhole end of the sealing element.
Public/Granted literature
- US20210054714A1 Flapper on Frac Plug That Allows Pumping Down a New Plug Public/Granted day:2021-02-25
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