Steamflood With Vertical Injectors and Horizontal Producers in Multiple Zones

Malik, Sanjeev; Zhang, Eamon; Asimi, Mohammed Al; Gould, Thomas L.

doi:10.2118/129248-pa

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…Besides, the similarity criteria comprised by these conditions are numerically equal [9,10]. The establishment and selection of the similarity criteria are the basis of the proportional physical simulation.…”

Section: Experiments Principlementioning

confidence: 99%

Experiment on the Influence of Vertical Heterogeneity of Reservoir on the Steam Drive Effect

Pang¹,

Yixing²,

Xu³

et al. 2015

TOPEJ

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This paper carried out experimental studies on the influence of vertical heterogeneity of reservoir on the steam drive effect after multiple-round steam stimulations. Taking the actual productive process of a heavy oil reservoir as an example, a physical model for the vertical heterogeneity was established. First, under the initial reservoir conditions, conduct multiple rounds of steam stimulations to obtain the initial reservoir conditions of steam drive, and then carry out physical simulation of steam drive, including the simulation of the horizontal reservoir and the tilted one. The development of temperature field and the oil-water output changes indicate that when the steam drive is conducted after the steam stimulations, the steam advances along the high permeability layer with better steam stimulation effect, once it gets a breakthrough, the swept volume will not change. For the tilted reservoir, due to the beneficial effects of the gravity drainage, its displacement effect is better than the horizontal one, which provides an important basis for the adjustment of layers and the section of methods of gas injection when the steam simulation is converted into steam drive.

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Section: Experiments Principlementioning

confidence: 99%

Experiment on the Influence of Vertical Heterogeneity of Reservoir on the Steam Drive Effect

Pang¹,

Yixing²,

Xu³

et al. 2015

TOPEJ

View full text Add to dashboard Cite

show abstract

“…Advanced water injection is a common way of water injection in ultra-low permeability reservoir, which can maintain high formation pressure and reduce permeability damage caused by formation pressure drop. The selection of advanced water injection timing is very important, and the daily oil production is different at different water injection timing [5]. Through stress sensitivity evaluation, the water injection time can be determined to maximize the economic benefits of advanced water injection.…”

Section: Introductionmentioning

confidence: 99%

Stress sensitivity evaluation of ultra-low permeability sandstone reservoir and its influence on oilfield development

Bai¹,

Guo²,

Yang³

et al. 2021

E3S Web Conf.

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Luohe ultra-low permeability sandstone reservoir is a hot block in Yanchang oilfield, which is a potential point for increasing production and reservoir. In view of the current situation that there is no unified stress sensitivity evaluation standard for ultra-low permeability sandstone in the study area, taking the ultra-low permeability sandstone in Luohe district as the research object, the stress sensitivity evaluation of ultra-low permeability sandstone is carried out by using experimental analysis as the main means. The results show that it is more accurate to evaluate porosity by using pore stress sensitivity coefficient instead of pore compressibility coefficient. With the increase of net overburden pressure, the porosity stress sensitivity decreases gradually; the permeability stress sensitivity is evaluated by variable confining pressure. With the increase of confining pressure, the permeability damage decreases. With the decrease of confining pressure, the permeability damage increases, but it can not recover to the original value, so the permeability damage is irreversible; in the low bottom hole pressure stage, stress sensitivity has a greater impact on oil well productivity, while in the high bottom hole pressure stage, stress sensitivity has a smaller impact on oil well productivity; advanced water injection can reduce the adverse effect of stress sensitivity on the development of ultra-low permeability sandstone and maximize the economic benefits. The research results clarify the method of stress sensitivity evaluation, and provide guidance for efficient water injection in the next step.

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Research into magnetic guidance technology for directional drilling in SAGD horizontal wells

Gao

Diao

et al. 2013

Pet. Sci.

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SAGD horizontal wells are used to enhance oil recovery from heavy oil reservoirs. This technology requires precise separation between the production well and the injection well to ensure the well trajectory, an algorithm is proposed for eliminating ferromagnetic interference while drilling injection are ultra-weak, frequency-instable, and narrow-band. The directional drilling magnetic guidance system (DD-MGS) has been developed by integrating these advanced techniques. It contains a subsystem for the ranging calculation software, a magnetic source, a downhole probe tube and a subsystem for collecting directional drilling trajectory not only in the horizontal section but also in the build section of horizontal injection wells. This new technology has broad potential applications.

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Steamflood With Vertical Injectors and Horizontal Producers in Multiple Zones

Cited by 8 publications

References 5 publications

Experiment on the Influence of Vertical Heterogeneity of Reservoir on the Steam Drive Effect

Experiment on the Influence of Vertical Heterogeneity of Reservoir on the Steam Drive Effect

Stress sensitivity evaluation of ultra-low permeability sandstone reservoir and its influence on oilfield development

Research into magnetic guidance technology for directional drilling in SAGD horizontal wells

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