Study of novel self-initiated aggregating proppant for channel fracturing
by Kaili Liao; Jijiang Ge; Lipei Fu; Jianda Li; Tianliang Li; Guicai Zhang
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 20, No. 3, 2019

Abstract: Channel fracturing is a promising technique for unconventional reservoir stimulations. Fibers bonded proppants and resin coated proppants are the two common technologies used for heterogeneous proppant placement. This paper discusses a new kind of surface modified proppant with the unique performance of self-initiated aggregating property in distilled water and guar gum fracturing fluid, which is suitable for keeping proppant cluster together during transportation in the wellbore and fracture. The changes of the zeta potential of the proppant grains and the intertwining effect of the polymer coating account for the self-initiated aggregating property. An evaluation method for measuring the self-initiated aggregating strength of the proppant column was introduced, with which the aggregating speed and the aggregating perdurability were evaluated. Due to the re-aggregating property, the fracture conductivity was significantly improved, and the higher the closure stress, the more obvious the advantages. The findings of this study provide a new alternative for channel fracturing. [Received: November 4, 2016; Accepted: April 3, 2017]

Online publication date: Mon, 25-Mar-2019

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Oil, Gas and Coal Technology (IJOGCT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com