Open:

Of a wellbore, having no casing.

2.

Of a hole, having no drill pipe or tubing suspended in it.

Terms Related to Open

• Open-hole completion

  A method of preparing a well for production in which no production casing or liner is set opposite the producing formation. Reservoir fluids flow unrestricted ...

• Retainer

  A cast-iron or magnesium drillable tool consisting of a packing assembly and a back-pressure valve. It is used to close off the annular space between ...

• Wellbore

  A borehole; the hole drilled by the bit. A wellbore may have casing in it or it may be open (uncased); or part of it ...

• Blowout preventer

  1. One of several valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and drill ...

• Open hole

  Uncased portion of a well.

• Openhole

  The uncased portion of a well. All wells, at least when first drilled, have openhole sections that the well planner must contend with. Prior to ...

• Stuck pipe

  Drill pipe, drill collars, casing, or tubing that has inadvertently become immovable in the hole. Sticking may occur when drilling is in progress, when casing ...