Tubing cleaning

NTS technology provides multi-stage tubing cleaning from asphalt resins and paraffins, corrosive and salt deposits. At the first stage is carried out tubing washing from asphalt resins and paraffins in an activator type washing installation or tubing cleaning in gas-dynamic steam installation by agreement with the Customer. Then external and interior surface of pipes undergo mechanical finish cleaning with metal brushes and roller cutters. Individual process operations are coupling thread and tubing nipple cleaning. Selectively, tubing high pressure water cleaning technology is used, that removes from the pipe surface almost all possible pollution, including solid scaling.

TUBING WASHING FROM ASPHALT RESINS AND PARAFINS

Tubing washing from asphalt resins and paraffins is performed automatically in a washing machine activator type. Cleaning is carried out by the thermodynamic effects of cleaning solution to asphalt resins and paraffins under the temperature of 80-90 ° C. Oil deposits heated to the melting point are removed by cleaning solution circulating in the bath.

Loading pipes in washing bath and unloading from it is carried out by beam crane. Delivery of dirty pipes to the shop for washing, as well as removal pipes from shop is carried out with packages using mechanized rail-guided cart.

In washing installation is used water recycling, detergent solution is cleaned by flotation and filtration equipment with coagulating agents. After washing, the inner and the outer tubing surface is acceptable the presence of hardened asphalt, resins and paraffins, loosened components of scale, rust no more than 1 mm thickness.

TECHNICAL CHARACTERISTICS:

• installation performance, pipes / hour - up to 80;
• operation duration, min. - 20-25;
• the volume of washing solution in a bath m3 - 12;
• removal rate of asphalt, resins and paraffins, % - 90;
• power consumption kW - 160.

BENEFITS:

• good degree of purification;
• high productivity;
• high process automation.

TUBING GAS-DYNAMIC STEAM CLEANING

Tubing interior and exterior surface cleaning from asphalt, resins and paraffins at automated gas dynamic installation, produced by NTS-Leader, distinguishes high quality and performance. Gas dynamic installation provides rapid and uniform pipe heating to a temperature that ensures melting of asphalt, resins and paraffins but not enough for deflagration asphalt, resins and paraffins or change metal structure. Under influence of high-pressure aerodynamic flow of vapor-air mixture takes place peeling deposits, softened by temperature and partially melted from pipe walls and their removal. Gas dynamic installation design ensures the completeness of fuel combustion. In the quality of fuel can be used kerosene and casing-head gas. The resultant hydrocarbon vapors and residue of fuel combustion undergo multistage separation and absorption. Tubing gas-dynamic steam installation from asphalt, resins and paraffins corresponds to the highest environmental requirements - gas-dynamic installation emissions are below maximum permissible norms of maximum permissible discharges and maximum permissible limit.

TECHNICAL CHARACTERISTICS:

• performance pipes / hour - up to 100;
• operation duration (depending on contamination level), min - 6-8;
• removal rate of asphalt, resins and paraffins, % – 98-100;
• controlled temperature steam gas jets, ° C - not more than 250;
• power consumption kW – 45.

BENEFITS:

• high productivity and stability compared to any other methods;
• no metal structure change during thermal influence;
• possibility of using casing-head gas as a fuel;
• full automation.

Tubing gas-dynamic cleaning installation has been successfully operated in many pipe control shops since 2002.

TUBING EXTERIOR AND INTERIOR SURFACE MECHANICAL CLEANING

Finish cleaning the tubing outer surface from soft sediments remains and scale is made by brushes. Finished machining tubing interior surface from asphalt, resins and paraffins residues, scale and rust is carried out by a special tool with roller cutters. The tool is fixed to the rod that is inserted into pipe hole with simultaneously blowing with compressed air. The tool is fixed to the rod that is inserted into pipe hole with simultaneously air-flushing. Clean air in the working zone is provided by cyclones and filtering elements.

TECHNICAL CHARACTERISTICS:

• performance pipes / hour:
• in mobile plant — 30-35;
• in stationary plant – 45-50;
• compressed air flow (depending on pipes typical sizes ), m3 / min, from 4.6 to 7.8;
• power consumption kW – 20.

BENEFITS:

• good degree of purification;
• simultaneous finishing process of two pipes;
• adjustable speed of technical process.

COUPLING THREAD AND TUBING NIPPLE CLEANING

Coupling thread and tubing nipple cleaning from loose rust, scale, cutting oil residues, metal chips is produced by brushes in the automatic mode.

TECHNICAL CHARACTERISTICS:

• performance, pieces / hour - up to 50;
• power consumption kW – 1.

TUBING HIGH PRESSURE WATER CLEANING FROM SALT DEPOSITS

Unique automated tubing high pressure water cleaning installation by extra-high pressure removes nearly any possible contamination usual for tubing: solid salt deposits, asphalt-resin-paraffins, old lacquer coating, rust. Return tubing, cleared from salt deposits to re-commissioning can reduce the the oil company costs for new pipes purchasing. Tubing high pressure water cleaning - is a highly efficient and environmentally friendly technology.

TECHNICAL CHARACTERISTICS:

• processing speed according to deposits nature, m / min - from 1.5 to 3;
• performance pipes / hour – 10-15;
• power consumption kW – 80.

BENEFITS:

• complete removal of all contaminants;
• processing of tubing different typical sizes without equipment realignment;
• gentle cleaning method (without using chemically active substance and abrasives) without damaging workpiece surface;
• circulating water supply;
• environmental friendliness.