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7 Cards in this Set
- Front
- Back
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Deepwater cementing objectives
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Obtain a Competent Hydraulic Seal,Provide Structural Support,Long Term Cement Sheath Durability,Short WOC
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Deepwater problems
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Shallow water flow
Gas Low temperature in shallow strings Risk of losses in shallow strings Mud displacement |
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Options to control shallow water flow
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Identify potential shallow water flow zones,Drill pilot holes,Best drilling practices
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Cement technology for deepwater applications
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Deepcrete
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Required Slurry Properties
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Density between pore and frac
Optimized rheology for mud removal Zero free water No sedimentation Fluid loss control (<50mL/30min) Short critical hydration period High early compressive strength Low heat of hydration (gas hydrate control) Low permeability |
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DeepCEM additives
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(D185, D186 – liquids)
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DeepCRETE Application Range
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Water salinity: fresh to 37% salt
Density: 12 - 13.5 lbm/gal Temperature: 40º - 80ºF Pressure: surface to 5000 psi |
