Search results

...ty and expense involved with a [[Types_of_completions#Multiple_completions|dual or triple completion]] in reservoirs deeper than [[depth::10000 ft]]. ...ing dual completion and (b) a completion with dual packers and dual tubing strings.

...etions are preferred because of the complexity and expense involved with a dual or triple completion in reservoirs deeper than [[depth::10,000 ft]]. ...ing dual completion and (b) a completion with dual packers and dual tubing strings.

...tion.jpg|thumb|300px|Wellhead in Northeastern BC, Canada The wellhead is a dual completion. Two different zones have been completed however production from ...pressure sealing must be provided. This is the function of the casing and tubing heads. The ''Christmas tree'' provides the necessary valving and chokes to