Title: Experimental investigation of sand consolidation techniques: resin injection and in-situ combustion
Authors: A. Dehghani; H. Rahmanifard; D. Mowla
Addresses: Engineering and Construction Department, Pars Oil and Gas Company, Bushehr Street, Asaluieh 7511946484, Iran ' Drilling Fluids and Waste Management Engineering Division, Deputy Managing of NIDC Projects, Pasdaran Street, Ahvaz 61635901, Iran ' School of Chemical and Petroleum Engineering, Shiraz University, Zand Street, Shiraz 713451719, Iran
Abstract: This paper demonstrates two sand control techniques that could overcome the technical limitations associated with the sand production phenomenon in Ahwaz oil field (in the southwest of Iran). The techniques are based on the consolidation process with resins and the oxidation of hydrocarbons. In this work, unconsolidated sand packed models of cylindrical geometry were utilised in order to perform a series of experiments during which various controlling parameters (compressive strength, permeability, and porosity) were investigated. The results showed that for consolidation process with resins, it was possible to produce consolidated sand samples with compressive strength between 740 and 1,330 psi; permeability between 3,000 and 4,100 md, and porosity between 27% and 34.5%. In contrast, for in-situ combustion technique, compressive strength between 580 and 1,040 psi, permeability between 3,100 and 5,100 md, and porosity between 23% and 42% were obtained. At the end, it is concluded that the consolidation process with epoxy resin (ML 503) is the most efficient method according to National Iranian South Oil Company standards. However, for field scale applications an economical proof is needed. [Received: May 10, 2012; Accepted: November 8, 2012]
Keywords: sand consolidation; resin injection; in situ combustion; permeability; porosity; compressive strength; sand control; oilfields; oil industry; oxidation; hydrocarbons.
DOI: 10.1504/IJOGCT.2013.056738
International Journal of Oil, Gas and Coal Technology, 2013 Vol.6 No.6, pp.689 - 704
Received: 15 May 2012
Accepted: 08 Nov 2012
Published online: 29 Jan 2014 *