Experience and lessons in crude oil pipeline pigging: Case studies from field practices

Li, Weidong; Wang, Wenda; Ran, Jirong; Li, Huiyuan; Liu, Jianxun

doi:10.1080/10916466.2021.2011920

Cited by 7 publications

(1 citation statement)

References 38 publications

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“…Huang et al 39 found that the stress difference significantly affects the crack density and crack generation efficiency. Li et al 40 analyzed the mechanism of wax clogging in the process of moving the pipe cleaner in front of the wax plug and in the process of not cleaning. Huang et al 41 found that radial water jet slotted grouting can effectively improve the gas recovery rate of horizontal wells.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study of the Operating Characteristics of Attached-Wall Bistable Jet Elements

Sun

2024

ACS Omega

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In this paper, first, the control principle of wall-mounted bistable jet components is analyzed, and the jet components and the main structures of the inner cavity are introduced. Then, the control equations, turbulence models, boundary conditions, and mesh partitioning of multiphase fluids are established sequentially, and the jet element mesh model was obtained. Finally, qualitative and quantitative analyses are conducted on the attachment process, switching process, and attachment point position. Results show that in the steady state of wall attachment, the fluid layer attached to the wall is the fluid flowing from the control channel on the wall side of the jet attachment, rather than the main jet. The geometric parameters of the jet assembly affect the stability of the jet assembly attachment to the wall and the location of the attachment point.

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Section: Introductionmentioning

confidence: 99%

Numerical Simulation Study of the Operating Characteristics of Attached-Wall Bistable Jet Elements

Sun

2024

ACS Omega

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Effect of a new nano‐viscosity reducing agent on the rheological properties and wax deposition characteristics of waxy crude oil

Fan,

Wang,

Song

et al. 2024

Can J Chem Eng

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Wax inhibitors are widely applied during the process of waxy crude oil production, storage, and transportation. However, their effects on the crude oil rheological properties and wax deposition characteristics are still not well understood. Herein, a new nano‐viscosity reducing agent was chosen to investigate its influences on the physical properties and the wax deposition process of Liaohe crude oil in a cold finger experimental device. Firstly, the rheological property variations of crude oil with different dosages of reagent added were tested. Furthermore, the changes of wax deposit morphology, wax deposition rate, and wax precipitation characteristics were studied, and the influencing mechanism was elucidated. It was found that the new nano‐viscosity reducing agent can significantly alter the crude oil rheology properties and wax deposition process. The gel point, wax appearance temperature (WAT), and viscosity all decreased after addition of the reagent. With the dosage of the new reagent increasing from 0 to 120 mg/kg, the wax deposition rate decreased greatly, but the wax content and WAT of the deposits increased obviously. Further, the wax content and WAT are larger in the bottom layer. The wax particles in the bottom layer present smaller size and larger size for the blank crude oil and additive crude oil, respectively, which are caused by the variation of physical properties and molecular diffusion process. This research provides valuable information for the action mechanism of the new nano‐viscosity reducer on Liaohe crude oil, which can guide the optimization of the oil transmission process.

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Characteristics of reservoir aggregation and main controlling factors in the P5-QS2 well area in the X basin

2024

J Therm Anal Calorim

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Experience and lessons in crude oil pipeline pigging: Case studies from field practices

Cited by 7 publications

References 38 publications

Numerical Simulation Study of the Operating Characteristics of Attached-Wall Bistable Jet Elements

Numerical Simulation Study of the Operating Characteristics of Attached-Wall Bistable Jet Elements

Effect of a new nano‐viscosity reducing agent on the rheological properties and wax deposition characteristics of waxy crude oil

Characteristics of reservoir aggregation and main controlling factors in the P5-QS2 well area in the X basin

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