Transportation of waxy crude oil

As with transportation length enlargement and shut-down time prolongation, the transfer stations that have to be used before PPD is adopted also can be eliminated and the transfer system becomes simpler and safer for buried flow-line to transport waxy crude oil.

Background: The background of using the pour point depressant is that wax precipitation causes several challenges during oil extraction and pipeline transport  Seed oils. Waxy crude oil. Inhibition. Rheological properties. Pour point been known to wax up beyond recovery (Adewusi, 1997) during crude oil transport. transportation [2-4]. Waxy crude oil at offshore fields is mainly known for its high wax content. As the ambient temperature at the seabed is far lower than the pour   17 Sep 2019 Clariant Oil Services launches WAXTREAT SubZero Pour Point the transportation of waxy crude oils and the mitigation of wax deposition. In order to optimize profitability in the handling of waxy crude oil pipelines, an literatures discuss methods of handling the transportation of waxy crude oils in. 1 Feb 1995 In evaluations of the wax potential of a crude, the climate of the area Petroleum -- Drilling & Production; 022000 -- Petroleum-- Transport, 

26 Apr 2012 Take Daqing and Shengli waxy crude oil for example, the basic rule of above- mentioned engineering-economic characteristics of waxy crude 

14 Mar 2016 TRANSPORTATION OF WAXY CRUDE OILS. INTRODUCTION. Crude oil contains a mixture of light and heavy hydrocarbons. The. 22 Oct 2013 Transporting heavy crude oil and bitumen via pipeline is usually it is extremely difficult to transport via pipeline waxy crude oil in cold weather  26 Apr 2012 Take Daqing and Shengli waxy crude oil for example, the basic rule of above- mentioned engineering-economic characteristics of waxy crude  26 Jan 2015 Then the restart process of a wax crude oil pipeline is investigated “Isothermal start-up of pipeline transporting waxy crude oil,” Journal of  In petroleum industries, waxy crude oil is normally found in petroleum production. Wax formation and precipitation during pipeline transport of waxy crude oils  Waxy crude oils represent a significant amount of the petroleum reserves and productions worldwide, and the pipeline transportation of waxy crude oils is an 

27 Jun 2018 Transportation of heavy/waxy crude oils with high viscosity makes flow through pipelines problematic and challenging. It has been recognized 

Transportation of waxy crude oil has received significant attentions as its pour point temperature is well above the seabed temperature at production fields. There have been different techniques used to alleviate flow problems prior to pumping . Wax inhibitor, use of chemicals, pour point depressant, catalytic treatment, thermal treatment and wax control polymers were among few mechanisms used earlier. TRANSPORTATION OF WAXY CRUDE OILS 1. Select pumps to allow a parallel/series arrangement, which could transport at slower. 2. Use of separate low flow, high head pumps for restarting. 3. Side traps at frequent intervals to allow short sections to be started separately. 4. Reverse pumping to Crude Oil Transportation: Nigerian Niger Delta Waxy Crude Elijah Taiwo 1, John Otolorin 1 and Tinuade Afolabi 2 1Obafemi Awolowo University, Ile-Ife, De partment of Chemical Engineering, 2Ladoke Akintola University of Technology, Ogbomoso, Department of Chemical Engineering, Nigeria 1. Introduction DEFINITION OF A WAXY CRUDE A waxy crude is defined as a crude oil having a high pour point and low API gravity, and often containing paraffin wax (alkanes). A waxy crude is distinguished by the fact that it exhibits non-Newtonian viscosity behaviour at temperatures below about 20F above the pour point. Flow start-up and transportation of waxy crude oil in pipelines. Edited by Fernando Pinho, Ian Frigaard. Last update 27 November 2019. Actions for selected articles. Select all / Deselect all. Download PDFs Export citations. Show all article previews Show all article previews. When the temperature of a waxy crude oil is lowered, first the heavier fractions of its wax content start to freeze out. For a waxy crude it is customary to measure its cloud point and pour point according to ASTM methods. Pipeline Plugging due to Wax Deposition . A. In the working range used, the flow of waxy crude oil proved to be dependent on the flow rate, temperature and interaction between combinations of the flow rate and water cut. The variable that was the most significant for the waxy crude oil was the temperature, which was inversely proportional to the pressure gain.

1 Feb 1995 In evaluations of the wax potential of a crude, the climate of the area Petroleum -- Drilling & Production; 022000 -- Petroleum-- Transport, 

In the working range used, the flow of waxy crude oil proved to be dependent on the flow rate, temperature and interaction between combinations of the flow rate and water cut. The variable that was the most significant for the waxy crude oil was the temperature, which was inversely proportional to the pressure gain. Transportation of waxy crude oil along horizontal pipeline usually requires extra energy that costs additional billions of dollars to the industry.

22 Oct 2013 Transporting heavy crude oil and bitumen via pipeline is usually it is extremely difficult to transport via pipeline waxy crude oil in cold weather 

26 Jan 2015 Then the restart process of a wax crude oil pipeline is investigated “Isothermal start-up of pipeline transporting waxy crude oil,” Journal of 

Transportation of waxy crude oil has received significant attentions as its pour point temperature is well above the seabed temperature at production fields. There have been different techniques used to alleviate flow problems prior to pumping . Wax inhibitor, use of chemicals, pour point depressant, catalytic treatment, thermal treatment and wax control polymers were among few mechanisms used earlier.