TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractFluid loss that can occur when performing sand control operations in high-permeability sandstone formations has traditionally caused operators much concern because of the formation damage that can result, reducing production potentials and increasing operational costs. In the Gulf Coast area, wells are usually perforated with tubing conveyed perforating (TCP) guns in an underbalanced condition. After the perforating and well flow processes have been performed, the wells are killed. Unfortunately, at any time after the well has been perforated until it is completed, fluid loss can occur. This paper will discuss a new process in which the perforating gun assembly is incorporated with the gravel pack assembly to allow perforating and gravel packing to be accomplished in a single trip. By eliminating the time and additional trips required to perforate and clean up the well before gravel packing the zone of interest, the chance of fluid loss is significantly reduced. Other innovative methods have also been introduced to minimize formation fluid losses and eliminate the use of formation-damaging lost circulation material (LCM) during performance of the sand control procedures. Several operators have recently completed wells in the Gulf Coast area using the new single-trip perforate-andgravel-pack procedure (STPP) and advanced stimulation design, and low skin factors have been experienced.The operating procedures as well as the increased efficiency and cost savings for which the new procedures have been responsible will be discussed, and the post-operational data provided will verify that reduction in formation damage is experienced when the new methods are used. 3 REDUCES FORMATION DAMAGE IN HIGH PERMEABILITY SANDSTONE RESERVOIRS: CASE HISTORIES