Optimization Research To The Layout Of The Oilfield Water Injection System

Water injection system is one of the five systems in oilfield. The injection technic develops gradually with the deeper exploitation to oilfield. Optimization research to the layout of oilfield water injection system belongs to imitation optimization research field of oilfield ground project. Comparable perfect layout of the system can lead to less construction and circulate cost. The main research task in this paper includes two aspects: topology optimization to the layout of the water injection system and optimization to the parameters of the pipeline network.First of all, network of the water injection system is depicted by usage of related theories, basic mathematical models of the composing elements are established and analyzed. Based on these models and analysis to restricting factors, the integer topology optimization model of water injection system layout is established. Aiming at the complexity of the integer model, the multi-level optimization is cited in so that the research to the layout optimization of water injection system is divided into three filial questions: the partition optimization to the water injection well, to the position of water distribution station and water injection station and main stem, to the integer layout. The filial models are established, each of which has its corresponding proper solution. Thus the main topology optimization to the layout of water injection system is settled effectively.For the parameter optimization of the pipeline network, the deducing process of the mathematics model is introduced and steps of the solution are paraphrased.Finally, the layout optimization software of water injection system is compiled whose operation result testified the validity of the research. By a certain means, this research can be referable for related research in other oilfield system.