China University of Petroleum

Dingyong Zhang

Zhaomin Li

Jian Li

Teng Lu

Binfei Li

Dawei Hou

A composite nitrogen huff and puff method for a bounded fault block reservoir comprises: selecting the reservoir to be developed, wherein the reservoir to which the development method is applicable is roughly screened according to the following conditions: the reservoir is a bounded fault block reservoir, buried depth&#x3c;5000 m, residual oil saturation&#x3e;0.5, reservoir thickness&#x3e;10 m, horizontal permeability&#x3e;100 mD, vertical permeability to horizontal permeability ratio&#x3e;0.35, reservoir porosity&#x3e;0.20, and stratigraphic dip&#x3e;8&#xb0;; and sequentially performing the following huff and puff phases: a nitrogen huff and puff phase, a nitrogen and water composite huff and puff phase, a nitrogen and foaming agent composite huff and puff phase, and a nitrogen and carbon dioxide composite huff and puff phase.

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Qingdao, China

Dingyong Zhang