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Title: Laboratory investigation of combination of alkali/surfactant/polymer technology for Daqing EOR

Abstract

Alkali/surfactant/polymer (ASP) formulas were developed for the Daqing oil field, Peoples Republic of China, with two surfactants from the US (Petrostep B-100 and a blend of TRS-18 and TRS-40) and one Chinese surfactant (PS-D{sub 2}). Each ASP solution gave interfacial tension (IFT) values in the range of 1 {times} 10{sup {minus}3} mN/m. Rheologic studies with polyacrylamide polymers indicate that solution viscosity decreases with alkali addition, as does the pseudoplasticity of the solution. Addition of surfactant to the alkali/polymer solution increases the solution viscosity with no slope change in the viscosity-vs.-shear-rate plot. Incremental oil recovery was higher than that with waterflood; 20% original oil in place (OOIP) for 0.2-PV ASP injection and 33% OOIP for 0.3-PV ASP injection in Daqing core. Surfactant and alkali retention were both < 1 mg/g sand. The positive results of this laboratory study provided a fluid formula for a pilot ASP flood in the Daqing oil field.

Authors:
; ;  [1]
  1. Inst. of Petroleum Exploration and Development, Daqing (China)
Publication Date:
OSTI Identifier:
87564
Resource Type:
Journal Article
Journal Name:
SPE Reservoir Engineering
Additional Journal Information:
Journal Volume: 10; Journal Issue: 3; Other Information: PBD: Aug 1995
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; OIL WELLS; MICROEMULSION FLOODING; CHINA; DISPLACEMENT FLUIDS; ADDITIVES; RHEOLOGY; SURFACTANTS; PERFORMANCE; ENHANCED RECOVERY; WELL STIMULATION

Citation Formats

Shutang, Gao, Huabin, Li, and Hongfu, Li. Laboratory investigation of combination of alkali/surfactant/polymer technology for Daqing EOR. United States: N. p., 1995. Web.
Shutang, Gao, Huabin, Li, & Hongfu, Li. Laboratory investigation of combination of alkali/surfactant/polymer technology for Daqing EOR. United States.
Shutang, Gao, Huabin, Li, and Hongfu, Li. 1995. "Laboratory investigation of combination of alkali/surfactant/polymer technology for Daqing EOR". United States.
@article{osti_87564,
title = {Laboratory investigation of combination of alkali/surfactant/polymer technology for Daqing EOR},
author = {Shutang, Gao and Huabin, Li and Hongfu, Li},
abstractNote = {Alkali/surfactant/polymer (ASP) formulas were developed for the Daqing oil field, Peoples Republic of China, with two surfactants from the US (Petrostep B-100 and a blend of TRS-18 and TRS-40) and one Chinese surfactant (PS-D{sub 2}). Each ASP solution gave interfacial tension (IFT) values in the range of 1 {times} 10{sup {minus}3} mN/m. Rheologic studies with polyacrylamide polymers indicate that solution viscosity decreases with alkali addition, as does the pseudoplasticity of the solution. Addition of surfactant to the alkali/polymer solution increases the solution viscosity with no slope change in the viscosity-vs.-shear-rate plot. Incremental oil recovery was higher than that with waterflood; 20% original oil in place (OOIP) for 0.2-PV ASP injection and 33% OOIP for 0.3-PV ASP injection in Daqing core. Surfactant and alkali retention were both < 1 mg/g sand. The positive results of this laboratory study provided a fluid formula for a pilot ASP flood in the Daqing oil field.},
doi = {},
url = {https://www.osti.gov/biblio/87564}, journal = {SPE Reservoir Engineering},
number = 3,
volume = 10,
place = {United States},
year = {Tue Aug 01 00:00:00 EDT 1995},
month = {Tue Aug 01 00:00:00 EDT 1995}
}