4. Wells
  5. Packers or plugs
  6. Spaced sealing portions

Halliburton Services

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Adjustable relief valve

Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent

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Annular sample chamber, full bore, APR.RTM. sampler

Wells – Receptacles
Patent

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Annulus pressure operated closure valve with improved reverse ci

Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Patent

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Apparatus and method for protecting a transducer

Measuring and testing – Fluid pressure gauge – Mounting and connection
Patent

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Apparatus for cementing from a floating vessel

Wells – Submerged well – Means removably connected to permanent well structure
Patent

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