METHOD FOR COMPLETION OF MULTI-FACE BRANCHING HORIZONTAL WELLS Russian patent published in 2007 - IPC E21B43/25 

FIELD: oil extractive industry, namely, technologies for completing construction of multi-face branching horizontal wells with upward direction of horizontal part of shafts (branches) relatively to main shaft and, in particular, completion process when finishing by drilling; may be used also when completing similar multi-face branching horizontal wells after face-adjacent zone processing.

SUBSTANCE: method includes well completion itself with usage of tubing pipes and detection of influx volumes for each shaft. In accordance to invention in horizontal part of well with upwardly oriented shaft branches, completion of each branch is performed without entering the shafts after replacement of drill mud with oil. Tubing pipes are provided with swab limiter and mounted on lower points of each branch. Completion is performed by means of swabbing cycles.

EFFECT: increased productive capabilities of wells by creating system for finishing them by completion of multi-face branching horizontal wells with upward orientation of horizontal part of shafts (branches), with detection of productive capabilities of each branch without entering the shafts.

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