Determining treatment fluid composition using a mini-reservoir device

摘要

A mini-reservoir device may be used to screen or otherwise determine a composition of one or more treatment fluids, additives, and other fluids. Such fluids may be for use in a subterranean formation. Methods of determining a composition may include visual analysis of each of two or more fluids, each from a plurality of candidate fluids, flowed through a mini-reservoir device, and selection of one of the plurality of candidate fluids based at least in part upon that visual analysis. Certain methods may include determining an oil recovery factor for each of one or more fluids flowed through a mini-reservoir device. In particular methods, multiple treatment fluids and/or additives, such as surfactants, may be selected based at least in part upon visual analysis of the fluids' flow through a mini-reservoir device.

主权项

1. A method comprising:
injecting a first candidate fluid into a pore network of a first mini-reservoir device, the pore network of the first mini-reservoir device being configured to approximate a pore network within a subterranean formation; injecting a second candidate fluid into a pore network of a second mini-reservoir device, the pore network of the second mini-reservoir device being configured to approximate a pore network within the subterranean formation; obtaining first visual data of the flow of the first candidate fluid through the first mini-reservoir device; obtaining second visual data of the flow of the second candidate fluid through the second mini-reservoir device; and based at least in part upon visual analysis of the first and second visual data, selecting a fluid for introduction into the subterranean formation.