Practice of using the magnetic treatment devices to intensify the processes of primary oil treating

Abstract

During the primary treatment of oil, gas and water, complications arise associated with the presence of hard water-oil emulsions, which cause an increase in fluid pressure in the gathering systems, pipeline damage, as well as difficulties in gas separation and preliminary water discharge at the preliminary discharge unit (PRU). Additional problems arise during transportation of highly paraffinic oils associated with the crystallization of paraffin in the flow path of the oilfield equipment and on the inner surface of pipes, leading to a drop in the productivity of pipelines. 
 Article discusses the technology of magnetic-reagent treatment of water-oil media, which allows intensifying the processes of primary oil treatment at the facilities of its production. Bench and pilot tests have shown the ability of the magnetic field to accelerate oil demulsification processes, increasing the percentage of separated water during subsequent settling, and to reduce asphalt-resin-paraffin deposits (ARPD) on the inner surface of oil and gas field equipment. 
 Mechanism of the magnetic field effect on water-oil media is described. Effect of treatment on the integrity of the armour shells of oil-water emulsions was studied. Various modes of magnetic treatment have been investigated with evaluation of its effectiveness. It is shown that the best effect is achieved with the combined use of reagents and a magnetic field. Synergistic effect is observed, which consists in increasing their effectiveness. This made it possible to conclude that this method can be applied to reduce the consumption of reagents used in oil production while maintaining the treatment efficiency.

The role of multi-phase metal content in corrosion and premature failure mitigation of steel equipment in oil refiniers. Part 2

“…Because of the large amount of oil produced, we need large quantities of water, which is assumed to have special characteristics for the desalination process. That in most cases is difficult to be achieved, and this is replaced by available water sources, which are water containing mainly large amounts of chlorides and sulfates of sodium, calcium, magnesium and other salts [2,11,19,20].…”

Technology for Preventing the Wax Deposit Formation in Gas-Lift Wells at Offshore Oil and Gas Fields in Vietnam

“…Wax prevention is of paramount importance in the petroleum industry, especially during production in gas-lift wells. There are several well-known methods [12][13][14][15][16][17][18] used to handle wax formation problems such as mechanical-removal methods, chemical inhibitors, thermal techniques, chemical solvents, and other methods. Although there are several methods that have been applied to handle the wax formation problem in recent decades, questions concerning their economic viability as well as their effectiveness remain relevant.…”

“…Well-known methods to prevent and mitigate wax deposits in downhole equipment during the operation of gas-lift wells are mechanical, thermal, and chemical methods [12][13][14][15][16][17][18].…”

Influence of Asphaltenes on the Low-Sulphur Residual Marine Fuels’ Stability

“…Thus, obtaining LSFOs by selective compounding requires solving the problem of incompatibility arising when mixing the fuel components of paraffinic/naphthenic and asphaltene base [19,20]. As a result, marine fuel, as a multicomponent petroleum product, loses its sedimentation stability during storage and transportation and asphalt-resinousparaffin deposits (ARPDs) stratify, coagulate, and precipitate on pipelines and in storage tanks [21][22][23][24].…”