In 2009, a Gas reservoir discovery was made in the Deepwater of the Kutei Basin offshore East Kalimantan, Indonesia. The appraisal campaign continued through 2012 delineating both a main field (Jangkrik) and a satellite field to the north (Jangkrik NE). Three well tests were conducted during the appraisal phase confirming good permeability and high gas deliverability. Geologically, the field is characterized as a slope channel turbidite deposition system made up of many separate reservoirs. Some of the reservoirs amalgamate together in a channel complex system. The development scheme entails eleven subsea wells tied-back to a FPU for offshore processing of gas and condensates. The project is currently in execution phase and the development drilling and completion campaign is ongoing.In October 2014 the first development well was drilled. The well was drilled from one of four drill centers in the north of the main field targeting for development two reservoir segments. Both segments will be completed using smart completion and frac pack to manage the potential for sand production during the production. This paper describes the integrated approach to model the clean-up design to optimize the cross discipline objectives and make critical decisions during the operational clean-up on the rig.The clean-up design has been carried out to capture all possible reservoir risks related to the type of depositional. Not only the standard well testing software tool has been used, but also a 3D reservoir model has been developed to be able to predict the reservoir behavior during the clean-up and the build-up period. Furthermore as a validation the reservoir modeling is implemented to compare these two results using the well testing software. As the conclusion, this analysis helps the operators determine the best and proper way to operate the well and to prepare for the commissioning phase.Deepwater gas development projects require reliable and consistent gas well deliverability to satisfy gas production targets and gas sales commitments. The clean-up of the high rate gas wells is critical after a successful completion to both establish the actual deliverability but also to minimize the production of completion fluid through the subsea system and to the FPU facility. The clean-up design was developed to meet all objectives for the project.Development of Deepwater gas fields in Indonesia is in its early stages. The project is challenging due the number of different and separate reservoirs to be developed. Each well is designed to intersect and complete at least two reservoirs isolated and monitored separately through two Down-Hole Gauges (DHGs) that are installed in the intelligent completion design. The clean-up phase will utilize the intelligent completion equipment to clean-up and to test each reservoir independently.