Calculation of Relative Permeability Curve Based on Type C Water Drive Curve
Zhang Min,
Zhang Feng,
Cai Yintao,
Wang Jie,
Wang Yuzhen
Issue:
Volume 11, Issue 4, July 2023
Pages:
69-73
Received:
4 July 2023
Accepted:
19 July 2023
Published:
27 July 2023
Abstract: The oil-water relative permeability curve is the basis for the study of oil-water two-phase flow, and is indispensable for the calculation of oilfield development parameters, dynamic analysis and reservoir numerical simulation. In the absence of oil-water relative permeability curve, how to obtain the oil-water relative permeability curve with high accuracy that can represent the percolation characteristics of the whole area and ensure the reliability of the obtained data has very important practical significance, which is the premise for carrying out the above research work. The characteristic curve of type C water drive belongs to the linear relationship of cumulative output, which has the advantages of strong stability and more reliable results compared to other water drive curves. In this paper, oil-water relative permeability curve is calculated based on C-type water drive curve, and the formula for calculating relative permeability curve using C-type water drive curve is derived in detail, and the specific calculation steps are given. The reliability of the obtained relative permeability curve is verified by examples. Through actual data verification, the oil-water relative permeability curve obtained by the method in this article takes into account the heterogeneity of the reservoir, conforms to the percolation characteristics of the oilfield, and is basically consistent with the actual production situation, which has certain practicality.
Abstract: The oil-water relative permeability curve is the basis for the study of oil-water two-phase flow, and is indispensable for the calculation of oilfield development parameters, dynamic analysis and reservoir numerical simulation. In the absence of oil-water relative permeability curve, how to obtain the oil-water relative permeability curve with high...
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The Effect of Different Hydraulic Fracturing Width to the Well Production
Jabrayil Eyvazov,
Natig Hamidov
Issue:
Volume 11, Issue 4, July 2023
Pages:
74-78
Received:
25 June 2023
Accepted:
21 July 2023
Published:
31 July 2023
Abstract: By applying high pressure to tight formations like shale, a fluid, proppant, and additives create fractures or widen already existing ones to facilitate the flow of hydrocarbons into the well bore and ultimately to the surface facilities. Fracking, as hydraulic fracturing is more popularly known nowadays, is primarily utilized to produce hydrocarbons. The hydraulic fracturing fluid's proppant makes sure that once cracks are formed, they do not immediately seal, allowing hydrocarbon to gradually flow out of the tight formation. The additives are made up of several chemical types, and each one of them improves a particular quality of the fluid needed for the hydraulic fracturing process to be successful. In order to produce the desired amount of gas from unconventional reservoirs like tight gas, shale gas, coal bed methane, or other very low permeability reservoirs, an efficient hydraulic fracturing design is essential. Numerous elements need to be taken into account while developing and carrying out a hydraulic fracturing operation. These variables may also include flow back and shut in period, depth and thickness of reservoir, microcosmic events, the faults and natural fractures, which can play a significant role depending on reservoir properties, rock properties, type of reservoir fluids, etc. These variables are not only limited to pump rate, size and concentration of propping agent, fracture spacing or number of fractures, fracture geometry and conductivity, fracture length, and fracture width. These factors can differ greatly depending on where you are in the world. Without a thorough examination of underground formations holding hydrocarbons, there is no global hydraulic fracturing technique that can be used anywhere in the world.
Abstract: By applying high pressure to tight formations like shale, a fluid, proppant, and additives create fractures or widen already existing ones to facilitate the flow of hydrocarbons into the well bore and ultimately to the surface facilities. Fracking, as hydraulic fracturing is more popularly known nowadays, is primarily utilized to produce hydrocarbo...
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