Theoretical approach to calculate the exposure dose rate due to gamma rays from a contaminated pipe with radioactive material

الملخص EN

Oil-field equipment can contain radioactive scale and sludge, both of which form coatings or sediments.

Both of the scale and the sludge contain significant amounts of naturally occurring radioactive elements such as uranium, radium and radon, which are dissolved in the water and thorium during the process of oil and gas production.

These radioactive scales and sludge give rise to radiation hazards to the exposed individuals as a result of exposure radiation dose.

The present approach makes easy the calculation of the distance between any points on the surface of contaminated equipment (i.e.

oil pipe) with radioactive scale which coats the inner wall of the oil pipe.

The suggested approach was carried out by two methods of calculations (analytical and numerical methods) and the results of the two methods are very close.

A model was designed for calculations and can be used for the prediction of radiation dose within a certain interval of time.