Makarenko, V. D. та Liashenko, A. V. (2020) COMPLEX APPROACH TO RESEARCH AND SELECTION OF HYDROCARBON SOLVENTS FOR ASPHALTENE-RESIN-PARAFFIN-HYDRATE DEPOSITS CONTROL. Topical scientific researches into resource-saving technologies of mineral mining and processing. с. 408-417.

Text 26 Makarenko VD (1).pdf Download(393kB)

Title in English

COMPLEX APPROACH TO RESEARCH AND SELECTION OF HYDROCARBON SOLVENTS FOR ASPHALTENE-RESIN-PARAFFIN-HYDRATE DEPOSITS CONTROL

English abstract

The article deals with the chemical methods of combating asphalt-resin-paraffin-hydrate deposits, in particular, the use of solvents. The influence of different chemi-cals on the dissolution of hydrates in the laboratory installation at different tempera-ture-bar modes was carried out: the temperature varied discretely from -10 to + 40 ° C, the pressure from 0 to 10 MPa. To study the effect of hydrocarbon solvents on the process of removal of hydrate formations, we used the methods of regression analysis and mathematical planning of the experiment – simplex-lattice planning. The G-optimality criterion of the plan, including 22 experiments, was used. The measurement results are shown in the diagrams for each solvent separately. The obtained data made it possible to substantiate a priori the choice of the optimal variant of the use of chemical reagents for complete dissolution and removal of hydrate formations from the surface of the downhole equipment. Analysis of the data shows that the highest solubility and efficiency for removal from the surface of the wellbore equipment of paraffin hydrate deposits are characterized by the solvents butyl cellosolve and ethylacetat, which are recommended for widespread use in the industries of Ukraine. An important fact is that the consumption of the proposed solvents for one well-operation is no more than 4 m3, which is 2-3 times less than other domestic and foreign analogues. The use of new solvents also allows more than 2-3 times to increase the intercurrent well period, which reduces the cost of production.

Перегляд елементу

Завантажень