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A mobile land rig

E - Fixed Constructions – 21 – B
Patent

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A modified process for hydrocarbon recovery using in situ...

E - Fixed Constructions – 21 – B
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A modular, distributed, rov retrievable subsea control...

E - Fixed Constructions – 21 – B
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A mole launcher and a method of operating a mole launcher

E - Fixed Constructions – 21 – B
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A mud depression tool and process for drilling

E - Fixed Constructions – 21 – B
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A multi-step solvent extraction process for heavy oil...

E - Fixed Constructions – 21 – B
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A multilateral junction and method for installing...

E - Fixed Constructions – 21 – B
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A non-rotating sensor assembly for measurement-while-drilling

E - Fixed Constructions – 21 – B
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A novel fluid system having controllable reversible viscosity

E - Fixed Constructions – 21 – B
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A novel fluid system having controllable reversible viscosity

E - Fixed Constructions – 21 – B
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A one trip drilling and casing cementing method

E - Fixed Constructions – 21 – B
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A one-piece drill bit for single-pass anchor bolting and...

E - Fixed Constructions – 21 – B
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A percussion hammer for enlarging drilled holes

E - Fixed Constructions – 21 – B
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A percussive down-the-hole hammer and a drill bit

E - Fixed Constructions – 21 – B
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A percussive downhole hammer and piston design for such a...

E - Fixed Constructions – 21 – B
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A percussive hammer drill

E - Fixed Constructions – 21 – B
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A perforating charge carrier and method of assembly for same

E - Fixed Constructions – 21 – B
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A perforating gun having a plurality of charges

E - Fixed Constructions – 21 – B
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A permanent bypass whipstock assembly for drilling and...

E - Fixed Constructions – 21 – B
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A pipe assembly and a method for installation in a borehole

E - Fixed Constructions – 21 – B
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