The Application of Microbial Enhanced Oil Recovery Technology in Shengli Oilfield

Li, C.-F.; Li, Y.; Li, X.-M.; Cao, Yuankui; Song, Yongting

doi:10.1080/10916466.2014.999942

Cited by 22 publications

(17 citation statements)

References 2 publications

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“…The salinity level of the oil reservoirs was at 2500-22,000 mg/L. The current MEOR technology uses materials with permeability higher than above 50 Â 10 À 3 μm 2 (Liu, 2009), and microorganisms are very useful due to their smaller sizes. In this study the oil reservoir permeability range was 200 Â 10 À 3 -7000 Â 10 À 3 μm 2 .…”

Section: Selection Of Oil Reservoirsmentioning

confidence: 99%

A study on the microbial community structure in oil reservoirs developed by water flooding

Lin

Hao

Cao

et al. 2014

Journal of Petroleum Science and Engineering

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Section: Selection Of Oil Reservoirsmentioning

confidence: 99%

A study on the microbial community structure in oil reservoirs developed by water flooding

Lin

Hao

Cao

et al. 2014

Journal of Petroleum Science and Engineering

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“…Although more than one thousand wells have been used in MWR and CMR in Shengli Oilfield, only 9 blocks have been conducted for MFR. Table 5 [14,36,64,65] is a summary of 7 microbial flooding field tests in Shengli. The MRF test in Shan 12 is well introduced in a previous publication [30].…”

Section: Shengli Oilfieldmentioning

confidence: 99%

“…Among the 7 MFR field tests in Table 5, only three were reported with obvious enhanced oil recovery. In this block, MFR field tests have been enlarged from five wells (1 injector, 4 producers) in 2011 to 15 wells (3 injectors, 12 producers) in 2014 [14,64]. In 2015, the field test has been enlarged, but the data has not been made public.…”

Section: Shengli Oilfieldmentioning

confidence: 99%

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Recent Advance of Microbial Enhanced Oil Recovery (MEOR) in China

She

Kong

et al. 2019

Geofluids

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Compared with other enhanced oil recovery (EOR) techniques like gas flooding, chemical flooding, and thermal production, the prominent advantages of microbial enhanced oil recovery (MEOR) include environment-friendliness and lowest cost. Recent progress of MEOR in laboratory studies and microbial flooding recovery (MFR) field tests in China are reviewed. High biotechnology is being used to investigate MFR mechanisms on the molecular level. Emulsification and wettability alternation due to microbial effects are the main interests at present. Application of a high-resolution mass spectrum (HRMS) on MEOR mechanism has revealed the change of polar compound structures before and after oil degradation by the microbial on the molecular level. MEOR could be divided into indigenous microorganism and exogenous microorganism flooding. The key of exogenous microorganism flooding was to develop effective production strains, and difficulty lies in the compatibility of the microorganism, performance degradation, and high cost. Indigenous microorganism flooding has good adaptation but no follow-up process on production strain development; thus, it represents the main development direction of MEOR in China. More than 4600 wells have been conducted for MEOR field tests in China, and about 500 wells are involved in MFR. 47 MFR field tests have been carried out in China, and 12 field tests are conducted in Daqing Oilfield. MFR field test’s incremental oil recovery is as high as 4.95% OOIP, with a typical slug size less than 0.1 PV. The input-output ratio can be 1 : 6. All field tests have shown positive results in oil production increase and water cut reduction. MEOR screening criteria for reservoirs in China need to be improved. Reservoir fluid, temperature, and salinity were the most important three parameters. Microbial flooding technology is mature in reservoirs with temperature lower than 80°C, salinity less than 100,000 ppm, and permeability above 5 mD. MFR in China is very close to commercial application, while MFR as quaternary recovery like those in post-polymer flooding reservoirs needs further study.

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“…As most of the major oil fields in China have entered high water cut stage, technology having the characteristics of stabilizing oil production and controlling water cut has become increasingly important (Willhite and Pancake 2008;He et al 2009;Wei (2013); Hendraningrat and Zhang 2015;Li et al 2015). Polymer flooding and polymer/surfactant flooding (SP flooding) are currently the most widely used chemical flooding technologies (Shah and Schechter 1977;Needham and Doe 1987).…”

Section: Introductionmentioning

confidence: 99%

Experimental research on novel oil displacement and profile control system for heterogeneous reservoir

Liu

Zhang

et al. 2019

J Petrol Explor Prod Technol

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Polymer flooding and surfactant/polymer flooding (SP flooding) were mainly focused on the improvement in oil-water flow ratio and the reduction in oil-water interfacial tension. Preformed particle gel (PPG) flooding was mainly focused on the reservoir heterogeneity improvement. Each of these technologies has its own limitations. Heterogeneous system flooding (HS-PP flooding) was proposed as a novel flooding method aimed to improve oil-water flow ratio and reservoir heterogeneity at the same time. The HS-PP flooding system was composed of PPG and polymer solution. HS-PP flooding, polymer flooding and SP flooding as different chemical EOR methods were studied in laboratory in physical simulation heterogeneous model. Property of cubic expansion of PPG was researched by laser particle analyzer. The result shows that cubic expansion of PPG in simulation water is obvious and can be controlled. The effect of PPG on the diversion rate modification in double parallel sandstone model was obvious. The oil displacement experiments of the three different flooding systems with the same viscosity in physical simulation heterogeneous model were studied. The results show that the HS-PP flooding improves the oil recovery by 20.04%, comparing the result of 12.67% for polymer flooding and 16.66% for SP flooding, respectively. HS-PP flooding as a novel flooding method shows an excellent ability for stabilizing oil production and controlling water cut. The mechanism of the HS-PP flooding was discussed briefly. In addition to the viscoelastic displacement of polymers, the special circulation ability of "accumulating-deforming (collapsing)-accumulating again" of PPG is the main reason why the HS-PP flooding shows an excellent property for stabilizing oil production and controlling water cut.

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The Application of Microbial Enhanced Oil Recovery Technology in Shengli Oilfield

Cited by 22 publications

References 2 publications

A study on the microbial community structure in oil reservoirs developed by water flooding

A study on the microbial community structure in oil reservoirs developed by water flooding

Recent Advance of Microbial Enhanced Oil Recovery (MEOR) in China

Experimental research on novel oil displacement and profile control system for heterogeneous reservoir

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