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1. (WO2015114648) RESIN COATED PROPPANTS AND PROCESS FOR THE PREPARATION THEREOF

Pub. No.:    WO/2015/114648    International Application No.:    PCT/IN2014/000798
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Thu Dec 25 00:59:59 CET 2014
IPC: C09K 8/80
Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
Inventors: DUTTA, Dipak Kumar
SENGUPTA, Pinaki
SAIKIA, Kokil
SARMAH, Podma Pollov
PHUKAN, Ankana
Title: RESIN COATED PROPPANTS AND PROCESS FOR THE PREPARATION THEREOF
Abstract:
The present invention provides a process for preparing resin coated highly spherical proppants of sizes 12/20 and 20/40 US mesh by sintering the calcined bauxite and then coating with resol type phenolic resin comprising phenol, m-cresol and formaldehyde. Coating is done without using any coupling or partitioning agent. The resin coated proppants prepared by the method of the present invention are useful in hydraulic fracturing of oil and gas producing formations. The prepared proppants have high acid resistance towards 3% HF-12% HC1 mixture and have high crush resistance (upto 15000 psi) as per API specifications.