Research On The Construction Of Optimal Decision-making System For Production Cost Allocation

With the drastic fluctuations in oil prices of late years, low oil prices became the new normal. The production and management philosophy of "yield centered" is changing to the strategic guiding ideology of "yield and efficiency equality" gradually driven by persistent innovation of oilfields management thought. In this thesis, the technical route and model of "taking traditional production cost allocation as the basis, taking single well benefit as a ruler, scale measurement by ranking accumulation, re-optimization by company co-ordination" is proposed, which on the issues of how to achieve reasonable allocation between oilfield output and cost under the premise of beneficial optimization. In addition, benefit optimization configuration of production cost is implemented by taking Sinopec North-West as an example.Based on years of working experiences of the authors, the production costs of oilfields are categorized into relative fixed costs and relative variable costs according to the operation characteristics and technological process of oilfields. Beneficial results are calculated in line with technical evaluation theory and marginal analysis theory by taking single well as the core, which is the smallest production unit in oilfields. Economic yield is measured in accordance with scale economic theory, the method and process of production cost allocation are normalized in order to optimize efficiency, the benefit optimization method of production cost allocation is innovated as well. Firstly, the foundation of benefit allocation is obtained by differentiating yield structure of old well and measure well. Secondly, production cost allocation optimization models of old well and measure well are established to measure and calculate the economies of scale production. Finally, systematic optimization restricted by market, operation and provision is conducted at the company level. Both the actual situation of oilfield and the requirement of beneficial optimization are satisfied, which contribute to normalize the production allocation management and realize the operation target of cost decreasing and efficiency improving ultimately.