Simultaneous Water and Gas Injection Pilot at the Kuparuk River Field, Surface Line Impact

Abstract

This pepef was prepared fcf pmsomation et the SPE Annual Tschnic.al GantemncwJand Exhibition held in DaNM, U. S. A., octoh 22-25, 1995. Th!s paper was selected for presentation by an SPE Program Committee Ioltowing review of information contained in an abstmd submhled by the authors. Contents cd the paper, as presentsd, have nd bwn reiewed by the SodmtY of Petroleum Engineers and are subjed to cursdica ,py the authors. The material, as presented, does not necessarily ref ted an R%%::'R%G%2 Petroleum En~ineers, its otlicers, or nmnbers. Paperspresented at S publicatkm review by Edtirial Conmittsm of ths Soc4ety of Petroleum Enginsws Permission to CUFY K restricted to an chtred d not r-mm than 330 wards. Ilkmlfatbns K9y not be copied. The abstract shculd contain wnspiwot.ts acknosddgmm tot whue and by whun the papei was wesented. Wrhe Librwian, SPE, P. 0. Box S33B36. Rkhafd=n, TX 76C93-393S, U. S. A., lax 01-214-952-9435.Abstract:

Visualisation of Residual Oil Recovery by Near-miscible Gas and SWAG Injection Using High-pressure Micromodels

“…Pilot tests performed on Kuparuk River Field in Alaska Stoisits et al 1995) have also demonstrated the feasibility of SWAG injection. However, to the best of the authors' knowledge, no visualisation study of the SWAG injection has been carried out before directly observing the physical processes and the pore-scale mechanisms taking place in porous media during SWAG injection process.…”

Analytical Modeling for Gravity Segregation in Gas Improved Oil Recovery of Tilted Reservoirs

“…Pilot tests performed in the Kuparul River Field in Alaska (Stoisits et al 1995;Ma et al 1995) have also demonstrated the feasibility of SWAG injection. The performance of SWAG in oil recovery operations in a heterogeneous reservoir of the Middle East was investigated by Algharaib et al (2007).…”

Experimental investigation of simultaneous water and CO2 (SWACO2) injection for oil recovery in immiscible and near‐miscible conditions: A comparative study

“…In a series of high-pressure immiscible CO 2 injection experiments that were performed in micromodel, Sohrabi and Emadi [17] showed that before breakthrough, the oil was displaced by a double-drainage mechanism which was boosted by CO 2 dissolution and viscosity reduction mechanism. They demonstrated that after the CO 2 breakthrough, the main contribution to oil recovery came from the extraction 0.68 nC 4 3.25 iC 5 2.75 nC 5 3.46 C 6 4.91 C 7 4.85 C 8 2.57 C 9 1.30 C 10 2.69 C 11 4 mechanism, in which CO 2 efficiently extracted and recovered part of the oil which was directly in contact with the CO 2 . Despite significant CO 2 dissolution and swelling of the trapped oil which was completely surrounded by water layers, reconnection and recovery of these isolated oil blobs took place in a very limited number of pores.…”

“…The improved gas handling and oil recovery have been reported for SWAG injection at Siri field, the Joffre Viking and CO 2 miscible flood, and SWAG emulation at the Rangely CO 2 miscible flood . Pilot tests performed on the Kuparuk River Field in Alaska have also demonstrated the feasibility of SWAG injection . The main problem of SWAG injection in these field projects was the gas override due to gravitational forces, which led to reduction in sweep efficiency of oil recovery.…”

“…[7][8][9][10] Pilot tests performed on the Kuparuk River Field in Alaska have also demonstrated the feasibility of SWAG injection. [11] The main problem of SWAG injection in these field projects was the gas override due to gravitational forces, which led to reduction in sweep efficiency of oil recovery. The concept of selective simultaneous water and gas (SSWAG) injection has been considered in several studies for preventing gas override or slowing the segregation of injected fluids.…”