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Dongying Dayong Petroleum Additives Co., Ltd. 


       Add:Yongli Road, Kenli County, Dongying City
       Tel/Fax:+86-546-8741911
       Phone: +86-18654646911
        E-mail:dysyhy@126.com
        Code:257500

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Product name:

Acidified foaming agent

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Product description

Application of foaming agent in acid fracturing technology:

1. Foaming acid can be formulated. Fracturing acidification is a process of squeezing acid to the formation under pressure sufficient to crush the formation to form cracks or expand the original cracks in the formation. The process is mainly carried out in carbonates, which is an important means of transforming low-permeability oil and gas layers over a large area.

2. The foam has the characteristics of low filtration loss rate, proper viscosity and strong suspension force when used for production increase in oil and gas well . The foaming acid is a air-in-liquid emulsion produced by a foaming agent, and is a dispersion system in which a gas is dispersed in an acid solution.

3, foam acid requires the selection of appropriate foaming agent and foam stabilizer, which can increase the surface viscosity and foam stability. Compared with conventional hydrochloric acid acidification, foam acid has lower filter loss and higher sand-carrying capacity, and can be used in water-sensitive formations. High-viscosity foams are also good media for carrying proppants.

4. Foam acid has gas lift liquid discharge and rapid flow-back. After foam acid application, the wellhead pressure is low, which can promote the rapid expansion of gas and carry residual liquid and sand flow-back.

 

5. Foam acidification fracturing has better ability to produce cracks, good crack guiding ability, large acidification radius, suitable for carbonate oil layer, and also suitable for repeated acidification of old wells and water-sensitive formations.

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