Oil–water flow splitting in eccentric annular T-junction tubes—Experimental and CFD analysis

Yang, Lele; Wang, Jing; Jiang, Yunhua; Zou, Li

doi:10.1016/j.ces.2020.116000

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…DOE is a structured and organized method used to determine the relationship between different process input and output factors, involving the definition of the set of experiments, in which all relevant factors are systematically varied. By analyzing the results obtained, one can determine the degree of influence on the response variable of each factor used, as well as the interactions between the factors and the optimum conditions (Chen et al, 2020;Korolchenko & Minaylov, 2020;Setiawati & Yusuf, 2020;Yang et al, 2020).…”

Section: Theoretical Referentialmentioning

confidence: 99%

How to perform a simultaneous optimization with several response variables

Cardoso¹,

Reis²,

Silva³

et al. 2023

R. G. Secr.

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A problem facing the product development community is developing simultaneous solutions of response variables (to several properties) that depends on a number of independent variables or sets of responses. Harrington, among others, addressed this problem and presented a desirability function with a functional approach. Derringer and Suich altered their approach and illustrated how multiple variables can be transformed into a convenience function. This work redid the calculation performed by them using another software and made a comparative discussion of the results found.

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Section: Theoretical Referentialmentioning

confidence: 99%

How to perform a simultaneous optimization with several response variables

Cardoso¹,

Reis²,

Silva³

et al. 2023

R. G. Secr.

View full text Add to dashboard Cite

show abstract

“…In 1904, Hazen proposed the shallow pool theory [43]. Assuming that the pool length is L, the pool depth is H, the liquid velocity in the pool is ν, and the settling velocity of particles is µ 0 , the motion of droplets in the separator satisfies the formula L/H = ν/µ 0 .…”

Section: Shallow Pool Theorymentioning

confidence: 99%

Numerical Simulation and Experimental Study of a Multistage Multiphase Separation System

Chen

Zheng

Jiang³

et al. 2022

Separations

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Nowadays, most oilfields have entered the high water cut stage of waterflood development. The importance of oil–water separation technology becomes more obvious. Gravity separation is one of the most commonly used treatment techniques for produced fluid. The gravitational separator has a large processing capacity and a wide application range, but its structure is relatively simple and the separation efficiency gradually falls behind to meet current production needs. The key difficulties to improve the separation efficiency are to analyze the flow field and coalescing components inside the separator. Aiming at these difficulties, this paper reports an innovatively designed series-parallel multistage multiphase separation system (MMSS). A horizontal separator is connected in series with a vertical separator, and the vertical separator consists of five discrete pipes connected in parallel. Different coalescing components are then set inside the vertical separator. The separation effect of the MMSS is studied by numerical simulation and laboratory experiments. The oil phase volume distribution cloud diagrams of coalescing components are analyzed by numerical simulation, including semicircle baffle, spiral track plate, four-hole plate and seven-hole plate. Laboratory experiments show that MMSS has a high separation efficiency, and the water content at the oil outlet is 3.0% less than that of the horizontal separator. By observing the shape of oil droplets at the outlet and measuring the oil cut and water cut at the sampling outlet, the separation effect of four coalescent plates is obtained. According to the statistics, when the volumetric flow at the inlet of the separator is 1.5 m3/h, the average particle size of oil drops in the blank pipe, semicircular baffle, four-hole plate, spiral track and seven-hole plate increases in turn. A continuous oil layer appears at the outlet of the vertical separator in the fully open state. The water content at the oil outlet of the semicircular baffle coalescing component is always at a high level under different flow rates. When the inlet volumetric flow rate is less than 1.6 m3/h, the performance of the spiral track coalescing component is better. With the increase of the inlet volumetric flow rate, the separation efficiency of the spiral track is lower than that of the orifice. The results show that the semicircular coalescing component has the worst performance, the spiral track coalescing component is superior at small volumetric flow rates, and the orifice coalescing component is superior at large volumetric flow rates.

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“…There are many engineering fields in which three-way junctions are employed to merge two flows into a single stream, such as nuclear industry [1,2,3], internal combustion engines [4,5] and oil industry [6], to name a few. In all these situations, a main stream meets a secondary flow within the junction, seeking for a quick homogenization or trying to keep the streams separated as much as possible, depending of the considered problem.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%