... Abstract Although efforts are made to reduce or eliminate sand production in a producing well, sometimes sand fill is an unavoidable by-product of well conditions and the need for a cleanout intervention is necessary. Various cleanout methods have been utilized in the past, including the use...

... cleanout represent one of the biggest challenges for Coiled Tubing service activities, especially in gas wells. The trend towards more complex well trajectories, lower bottom hole pressures because of reservoir pressure decline, heavier and harder scale materials and high H 2 S contents, impose operational...