Invention Grant
- Patent Title: High solids content slurries and methods
- Patent Title (中): 高固体含量的浆料和方法
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Application No.: US12827475Application Date: 2010-06-30
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Publication No.: US08119574B2Publication Date: 2012-02-21
- Inventor: Mohan K. R. Panga , Philip F. Sullivan , Balkrishna Gadiyar , Ryan Hartman , Bruno Drochon , John W. Still , Bryan Stamm
- Applicant: Mohan K. R. Panga , Philip F. Sullivan , Balkrishna Gadiyar , Ryan Hartman , Bruno Drochon , John W. Still , Bryan Stamm
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Michael Dae; David Cate; Robin Nava
- Main IPC: C09K8/68
- IPC: C09K8/68 ; E21B43/04 ; E21B43/08 ; B01F3/12

Abstract:
A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amount to provide a solids volume fraction (SVF) less than the PVF of the solids mixture; and a stability additive to inhibit settling of the solids mixture. The method comprises circulating the slurry into a wellbore to deposit the slurry downhole; terminating the slurry circulation for a period of time, wherein the stability additive inhibits settling of the solids mixture; and thereafter circulating the deposited slurry in contact with a surface of a screen. Stability additives disclosed include colloidal particles, hydratable polymer particles, and particles having an aspect ratio above 6.
Public/Granted literature
- US20110155371A1 HIGH SOLIDS CONTENT SLURRIES AND METHODS Public/Granted day:2011-06-30
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