Wenlong Jia

Wenlong Jia
Southwest Petroleum University · School of Petroleum Engineering

Doctor of Engineering
Natural gas transmission, hydrogen, hydrate, multiphase flow, simulation

About

72
Publications
34,540
Reads
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381
Citations
Additional affiliations
December 2021 - present
Southwest Petroleum University
Position
  • Professor (Full)
December 2016 - present
Southwest Petroleum University
Position
  • Professor (Associate)
Description
  • Pipeline; modeling; simulation; multiphase flow; oil and gas production; natural gas; thermodynamics; phase behavior; flow assurance;
August 2016 - July 2017
University of Texas at Austin
Position
  • PostDoc Position
Description
  • Multiphase flash; Cubic-Plus-Association Equation of State; Oil water emulsion; Asphaltene; EOR
Education
September 2011 - June 2014
Southwest Petroleum University
Field of study
  • Oil & Gas Storage and Transportation
September 2008 - June 2011
Southwest Petroleum University
Field of study
  • Oil & Gas Storage and Transportation

Publications

Publications (72)
Article
The condensation of natural gas in the throttle valve may affect and even damage the downstream equipment, which threatens the safety and efficiency of the natural gas transport system. However, the mainly used method based on the isenthalpic hypothesis can hardly solve this problem. In this work, we developed a spontaneous condensation model of co...
Article
Blending hydrogen into high-strength pipeline steels for high-pressure transmission may cause materials' hydrogen embrittlement (HE) failure. Although the hydrogen-induced failure of metallic materials has been studied for a long time, the process of hydrogen into the materials, hydrogen-induced delayed failure, and dynamic mechanisms of high-stren...
Article
The coexistence of acid gas/water/alcohol/electrolyte mixtures is common during the gas production process. Traditional methods have difficulty accurately predicting hydrate formation temperatures and pressures because of complicated molecular and ionic interactions in such mixture components. Based on the electrolyte Cubic-Plus-Association (e-CPA)...
Article
The temperature of liquid helium (LHe) is 4.2 K, high-performance thermal insulation schemes such as the variable density (VD) and self-evaporation vapor-cooled shield (VCS) are required for LHe tank. But the working parameters of the VD and VCS in LHe tank have not been investigated. However, the related researches on liquid hydrogen tank neglecte...
Article
Coexistence of the solid particle erosion and acid liquid corrosion is common in shale gas gathering and transportation pipelines. It is conceivable that the synergistic effect of erosion and corrosion accelerates the pipeline damage process. In this research, a novel experimental device is designed to study the erosion-corrosion characteristics of...
Article
Full-text available
The pipeline is a convenient and safe way to transport natural gas liquids (NGLs). However, the NGL is easy to boil due to the variations of pressures and temperatures along the pipeline. The bubble lift-off diameter is an essential parameter to calculate the mass and heat transfer rates between vapor and liquid phases for the NGL two-phase saturat...
Article
The critical pressure ratio (ηc) is an essential parameter for computing the vapor-liquid two-phase critical pressure and mass flow rate of multicomponent hydrocarbon mixtures flowing through valves and leakage orifices. The Homogeneous Non-Equilibrium Diener-Schmidt (HNE-DS) model widely used to calculate ηc assumes that the fluid's volume linearl...
Article
Full-text available
In the process of natural gas transportation, the existence of free water is a disturbing problem. This paper studies the calculation model of the natural gas water content of the China-Russia eastern gas pipeline and the amount and distribution of fluid accumulation in the China-Russia eastern gas pipeline commissioning stage. By comparing the cal...
Article
Injecting CO2 into the hydrate reservoirs to replace CH4 is an effective method for the natural gas hydrate (NGH) exploitation and CO2 sequestration. The accurate prediction of the CH4 recovery factor under different pressures, temperatures, and CO2 injection amounts are essential for the design of the CO2 replacement process. However, conventional...
Article
The co-existence of gas, water, and monoethylene glycol (MEG) is common in produced fluids of high-pressure gas wells. Accurate predictions on the temperature changes during the choking process are essential for the design and operation of the choke valve. This paper presents an efficient multiphase isenthalpic flash method based on the cubic-plus-...
Conference Paper
Co-existence of gas, water and glycol is commonly in produced fluids of high-pressure gas wells due to formation water production and hydrate inhibitor injection. The interaction between the polar water and glycol molecules can affect the phase behavior and subsequent temperature change during gas flowing through chokes at wellheads. This paper pre...
Article
In this paper, a multi-level grey cluster decision method is proposed for the synthetic evaluation of operation schemes of natural gas pipelines with inexact data and insufficient information. A four-level index system is built as the synthetic evaluation criterion, aiming in balancing transmission volume, economic profit, and safety of the pipelin...
Article
Asphaltene is a group of complex compounds commonly present in petroleum reservoir fluids. It is conceivable that asphaltenes strongly interact with water through hydrogen bonding, affecting phase behavior of water/oil mixtures with/without forming an asphaltene‐rich phase. In this research, the cubic‐plus‐association equation of state (CPA EOS) is...
Article
The degree of water dissolution in oil affects the flow behavior of oil—water mixtures in reservoirs and pipes. A multiphase flash algorithm was used to calculate the solubility of water in oil containing asphaltenes at various temperatures and pressures. A cubic-plus-association equation of state was used to simulate the formation of H-bonds betwe...
Article
Full-text available
Operation optimization of natural gas pipelines has received increasing attentions, due to such advantages as maximizing the operating economic benefit and the gas delivery amount. This paper provides a review on the most relevant research progress related to the steady-state operation optimization models of natural gas pipelines as well as corresp...
Conference Paper
Asphaltene is a group of complex compounds commonly present in reservoir fluids, especially in viscous oils. It is conceivable that asphaltene strongly interacts with water through hydrogen bonding, affecting phase behavior of water/oil mixtures with/without forming an asphaltene-rich phase. Modeling of these polar components in reservoir fluids is...
Article
Full-text available
The leakage process simulation of a Natural Gas Liquid (NGL) storage tank requires the simultaneous solution of the NGL’s pressure, temperature and phase state in the tank and across the leak hole. The methods available in the literature rarely consider the liquid/vapor phase transition of the NGL during such a process. This paper provides a compre...
Article
Natural Gas Liquid (NGL) primarily contains light hydrocarbon components, e.g., ethane, propane and iso-butane. Its unique phase behavior and rapid evaporation process typically causes a non-equilibrium thermodynamic two-phase flow in the transmission pipeline, in which the liquid and vapor phases have different temperatures at the same cross secti...
Article
Predicting the hydrate formation condition is an important issue for determining high CO2 content natural gas transport. The widely used Parrish-Prausnitz (P-P) model cannot predict the hydrate formation temperatures and pressures accurately for high CO2 content natural gas. This paper introduced a simple correction factor into the P-P model, resul...
Article
Ferromagnetic pipelines provide a major means for the conveyance of oil and natural gas. The self-magnetic leakage field (SMLF) generated by ferromagnetic pipelines has therefore attracted considerable attention in the field of pipeline examination and defect detection. This paper has the objective of analysing the magnetomechanical effect, which c...
Article
We used five samples of super heavy oils collected in China to prepare 15 water-in-oil emulsions, with water cuts 10%, 20%, and 30%. We determined the viscosity of the emulsions at 30°C-75°C. Generally the viscosity of the studied emulsions is in the range 401-75200 mPa·s. Based on the experimental data, we propose a new rheological model for water...
Article
Scanning electron microscopic (SEM), nitrogen absorption—desorption, and thermogravimetric experiments were conducted on one fresh 4A zeolite and three regenerated 4A zeolite samples taken from the top, middle, and bottom of a natural-gas dehydration bed. The results showed that parts of the regenerated zeolite are blocked due to collapse of the ze...
Article
Scanning electron microscopic (SEM), nitrogen absorption—desorption, and thermogravimetric experiments were conducted on one fresh 4A zeolite and three regenerated 4A zeolite samples taken from the top, middle, and bottom of a natural-gas dehydration bed. The results showed that parts of the regenerated zeolite are blocked due to collapse of the ze...
Article
The internal surface absolute roughness influences the pressure drop along a gas pipeline significantly. In order to determine the proper roughness value of the pipeline, a numerical inverse calculation method is built. This method is applied to five large-diameter natural gas pipelines, which have different materials, operating pressure, service t...
Article
The trunk natural gas pipeline is the main transmission line between the gas fields and consumers. In this paper, an optimization model is built for the trunk natural gas pipelines, aiming in balancing the maximum operation benefit and the maximum transmission amount. The weight sum method was used to combine these two optimization goals into one h...
Article
Knowledge of critical points is important to determine the phase behavior of a mixture. This work proposes a reliable and accurate method in order to locate the liquid–vapor critical point of a given mixture. The theoretical model is developed from the rigorous definition of critical points, based on the SRK equation of state (SRK EoS) or alternati...
Article
The water content of natural gas is very important for gas pipeline operators. This paper developed an improved correlation model which is easy-to-use and with an appropriate accuracy to predict the water content of both the sweet and sour gases. The new correlations are generated from the Wang correlation combined with the Keenan-Keyes model. The...
Conference Paper
Pigging is an effective way of removing condensate liquid and improving the transportation efficiency of condensate gas transportation pipelines. Prediction of pig velocity, total pigging time, and slug length are of great importance for pigging operation. The pipelines are divided into a reformation two-phase flow section, single-phase gas, liquid...
Conference Paper
Liquid petroleum gas (LPG) is a mixture of ethane, propane and heavier hydrocarbons used as a fuel in heating appliances and vehicles. Due to the composition of LPG, phase transition occurs easier than gas and oil. Therefore, the running parameters of LPG pipelines are different from those of the gas and liquid pipelines. In order to predict the pr...
Article
With the development of high sour gas fields, the failure of gas gathering pipelines in high sour gas field caused by corrosion is becoming more serious. So it is important to select effective detection methods to detect the corrosion defects to insure the safety operation of the pipelines. In view of the characteristics that uniform corrosion, pit...
Article
Full-text available
Lee-Kesler (LK) Equation of State (EoS) is the most accurate enthalpy model for gases. The pressures at some condensate gas well heads are higher than 70 MPa. Accurate calculating the compressibility factors of the high pressure gas is essential to the enthalpy calculation of LK EoS. The basic parameters of the LK EoS are the reduced pressure and t...
Article
Full-text available
The paper introduces a numerical internal corrosion rate prediction method into the internal corrosion direct assessment (ICDA) process for wet gas gathering pipelines based on the back propagation (BP), the genetic algorithm (GA) and BP, and the particle swarm optimization and BP artificial neural networks (ANNs). The basic data were collected in...
Article
This study developed a downstream temperature prediction model for the high pressure natural gas flowing through chokes based on the iso-enthalpy choke theory. Considering the phase change during the choke process, the Lee-Kesler equation of state (EoS) and SRK EoS were utilized to calculate the enthalpies and liquid-vapor phase equilibrium respect...
Article
Full-text available
Liquid-vapor critical point for a thermodynamic mixture is an important parameter for the design of mixture transportation and processing. The classical critical points model for the multicomponent mixture is based on the tangent plane distance in terms of the Helmholtz energy. In this work, we have applied the damped Newton-Raphson scheme to solve...
Article
This study developed an approach to sizing the ground areas potentially affected by ruptured H 2Scontaining gas pipelines; there are two possible consequences of such an event: ignition or poisoning. For ignition, the traditional model presenting a thermal radiation circle was adopted. For poisoning, two kinds of models presenting the poisonous dis...
Article
Full-text available
This study developed a theoretical model for predicting the downstream temperatures of high pressure high temperature condensate gas flowing through chokes. The model is composed of three parts: the iso-enthalpy choke model derived from continuity equation and energy conservation equation; the liquid-vapor equilibrium model based on the SRK equatio...
Article
In the condition of satisfying process requirement, determining the optimum operation schemes of natural gas pipeline network is essential to improve the overall efficiency of network operation. According to the operation parameters of natural gas network, the multi-hierarchy comprehensive evaluation index system is illustrated, and the weights of...
Conference Paper
Waxy, high pour point and high viscosity oil is transported by the heated oil pipeline. The power and fuel cost account for large proportion in total cost. Long distance heated oil transportation pipeline contains many pump stations and heating stations. In the condition of satisfying transportation amount required, the operators can formulate many...
Article
Full-text available
Natural gas is normally transported through a vast network of pipelines. A pipeline network is generally established to connect gas wells with gas processing fields (gathering network) or to transmit gas at high pressure from gas sources to regional demand points (trunk network) or to distribute gas to consumers at low pressure from regional demand...
Conference Paper
During the operation of heated oil transportation pipeline, the shutdown is caused by some pipeline accidents or repairing. In order to ensure the safety operation of the pipeline, determine the temperature drop and restart pressure needed at different shutdown lasting time is important. This paper builds the heated oil pipeline shutdown and restar...
Conference Paper
A transient flow model for heated oil transportation pipeline is built with application of continuity, momentum and energy conservation equations of pipe flow. The transient friction term of the model incorporates both of the steady and unsteady friction and the Brunone-Vitkovsky model is selected to compute unsteady flow friction in pipeline. The...
Article
Full-text available
The coal bed methane is methane mainly and it has less heavier than conventional natural gas, thus coal bed methane has a slightly higher value than natural gas. Developing and utilization of coal bed methane is an important way to release contraction between supply and demand of natural gas in China. The pipeline is principle way of transporting t...
Article
Glass reinforced plastic (GRP) pipeline has good characteristics of anti-corrosion, anti-scaling and it is widely used in the oil transportation pipeline. Analyze the water hammer characteristics of GRP pipeline is essential to ensure the safety operation of the pipeline. The water hammer mathematic model for GRP pipeline is built through combing t...
Article
In the condition of satisfying process requirement, determining the optimum operation schemes of natural gas pipeline network is essential to improve the overall efficiency of network operation. According to the operation parameters of natural gas network, the multi-hierarchy comprehensive evaluation index system is illustrated. This paper present...
Article
Full-text available
During the operation of a heated oil transportation pipeline, the shutdown was caused by some pipeline accidents and repairing. In order to ensure the safety operation of the pipeline, determine the temperature drop and restart pressure was needed at different shutdown is important. This paper builds the heated oil pipeline temperature drop model a...
Conference Paper
Full-text available
During the operation process of heated oil transportation pipelines, shutdown accidents may be caused by some faults. In view of hydraulic and thermodynamic characteristics, the transient simulation model of heated oil pipelines is established based on hydrodynamic theories. The model is composed of quasilinear hyperbolic partial differential equat...
Conference Paper
Full-text available
A variety of processes are utilized for gas transmission. It is important to optimize the operation conditions of these processes to promote efficiency. The operation efficiency of pipeline systems is combined with the purchase and sale prices of gas, the quantity bought and sold of gas and the management costs. Aimed at the maximum operation effic...
Conference Paper
In view of the characteristics of coal bed methane, equation of state BWRS is used to calculate the thermodynamic parameters. Then based on continuity equation, momentum equation, characteristic equations of non-pipe elements and flow quantity balance equation, the simulation mathematic model of coal bed methane transmission pipeline is built. Cons...
Article
Supercritical pipelines are most commonly used in CO2 transportation. Liquid models are always utilized for design and hydraulic checking of those pipelines. However, supercritical CO2 may show significant characteristics of gaseous under certain operating condition. This phenomenon may increase pressure drop so that pressure values will be differe...
Conference Paper
In view of the hydraulic transient problem in heated liquid pipeline with entrapped gas, water hammer analysis equations are built. The solve methods are discussed based on homogeneous flow model and fractional flow model. Then VC++ is utilized to develop a computer program to simulate the hydraulic transient behavior. Ultimately, this paper simula...
Conference Paper
With thorough work on reduction technology of carbon dioxide emission, CO2 capture and storage is gradually paid great attention by international scholars. Transport is an integral part of this capture and storage technology. It has been estimated that for large-scale and long-distance transport of CO2, pipelines are the most economical way. In con...
Article
The liquid column in oil pipeline will separate due to the volatilization of light components and the concentration of bubbles. In order to research the phenomenon, the equations for the analysis of water hammer are established. Based on division phase flow model, in which the gas releasing and the oil evaporation are considered when pressure is lo...
Conference Paper
In view of the hydraulic transient problem in heated oil pipeline, an unsteady flow simulation model is built in this paper. The characteristic method and Newton-Raphson method are utilized to solve the model. According to the phenomenon that the light oils would release from the liquid and form void fraction when the pressure is over lowing, the m...
Conference Paper
In view of the problem that how to select the natural gas pipeline's optimization regulation schemes, the analysis method is utilized to select the pipeline's regulation schemes evaluation indexes which include the pipeline's flow rate, operation income, risk and gas storage capacity. According to the emphasis points of the regulation schemes, the...

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