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Solutions for production logging For horizontal wells stimulated with
acid using Coiled Tubing services

For horizontal wells stimulated with
acid using Coiled Tubing services

The acid stimulation with Coiled Tubing services is the major method for improving the recovery of carbonate reservoirs developed by horizontal wells.

This operation is standard solution for the GCC region. Traditionally 15% hydrochloric acid is used.

Uniform treatment of wellbore is a key factor in the success of acid stimulation in a horizontal well.

Production logging with markers detects intervals with good productivity as well as characterize the formation fluid.
 

Marker-reporters are introduced directly into the acid, each interval of acid treatment is marked with the individual code.

With the help of marker diagnostics, the parts of the shaft dissipating poorly are determined promptly.

Based on these data, the coiled tubing performs a repeated passes in the well for the purpose of additional acid treatment of these intervals, which in the vast majority of cases leads to a significant increase in production rate.

In the long term, the markers are placed in the rock by adsorption and are washed out by the fluid in approximately 2 months, which allows building the profile of the inflow of the well without conducting a specialized down-hole operation for production logging.

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