EFFECT OF REINJEKSI TERHADAP PRODUKSI AT VAPOUR DOMINATION FIELD X

• Main Author: NOVRIANSYAH (NIM : 22206002), ADI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20739
• Institution: Institut Teknologi Bandung

Injection is one ways to overcome water problem coming from generator and separator. Also, it can prevents pressure drop of reservoir as result of a large scale production and increase the mass rate. But, Injection also can bring negative impact. One of the impact is temperature degradation in production well if injection is done close to production well. But, placing Injection well which too far also can generate negative impact too. Because of the distance which too far from production well, injection fluid would be slow arrived at production well. This delay can cause pressure drop in production well and formed steam cap. Intention of this research is to know the of influence position, depth, and mass rate of injection to field total mass by using hypothetical model of field X and to know the optimal injection strategy that can be able to be done in X field. <br /> <br /> <br /> Research is conducted by making a numerical model which can imitate condition of field X reservoir by using TOUGH2. Before the model is made, we must know the dispersion of temperature and pressure at X field. By using this numerical model, done some simulation for a few injection scenario and a scenario without injection. This scenario must be able to fulfill requirement of minimum vapour which will be required by generator. In this scenario also is seen depth effect, position, and mass rate of injection to total mass production X field. <br /> <br /> <br /> From result of research, it is obtained that injection in X field is not able to increase the production in significantly. The best result that can be reached is production doesn't decrease although injection is done. Based on simulations, injection at area where close to production well will cause larger production decline rate compared to if injection is done far from production well. Same thing will occur if injection done at a shallow area and with a big injection mass rate