Experimental study on modified polyacrylamide coated self-suspending proppant

- Evaluation standards and methods for self-suspending proppant are put forward.
- Influence of different factors on proppant suspension is evaluated by experiments.
- The scope of polyacrylamide coated self-suspending proppant application is clearly identified.

In recent years，different types of self-suspending proppants have come up. Among these proppants, “fracturing fluid coated” self-suspending proppant, which can adopt different types of proppants, is evaluated experimentally in this research. Evaluation standards and methods for this “fracturing fluid coated” proppant are discussed firstly. Suspension parameters are essential indicators of performance evaluation, the final proppant settlement volume and deposition time consumed from uniform mixture to the final volume under relative sensitive experiment conditions are selected as evaluation indexes. Influence of different factors on proppant suspension is evaluated by experiments, and corresponding results make the application scope of self-suspending proppant clear.