Drilling fluid construction cost prediction method and device

Abstract

The invention provides a drilling fluid construction cost prediction method and device. The method comprises: main body formulas and maintenance formulas of drilling fluids of multiple adjacent wellsin a block where a to-be-logged well is located, and unit prices of the main body formulas and unit prices of the maintenance formulas are obtained; wherein the drilling fluid with the main body formula is used for drilling circulation, and the drilling fluid with the maintenance formula is used for supplementing consumption of the drilling fluid in drilling circulation; determining a main formulaand a maintenance formula of the drilling fluid to be logged according to the main formulas and the maintenance formulas of the drilling fluids of the adjacent wells; and according to the main formula and the maintenance formula of the to-be-logged well, the consumption of the main formula, the consumption of the maintenance formula, the unit price of the main formula and the unit price of the maintenance formula, the drilling fluid cost of the to-be-logged well is determined. According to the drilling fluid construction cost prediction method and device, various drilling fluid consumption types and consumption in the drilling construction process can be fully considered, and objective, accurate and high-reliability prediction is provided for the drilling fluid construction cost.

Description

technical field [0001] The invention relates to the technical field of oil and gas drilling engineering, in particular to a drilling fluid construction cost prediction method and device. Background technique [0002] Drilling fluid is the "blood" of drilling engineering, and the quality of drilling fluid directly affects the drilling speed. A high-quality drilling fluid system can not only reduce drilling accidents, increase ROP, save drilling cycle and drilling fluid cost. According to the drilling fluid construction experience in recent years, it is found that the quality of drilling fluid construction is greatly controlled by the drilling fluid construction cost in addition to the drilling fluid technology. Engineering investment will have a direct impact, and scientific and reasonable budgeting of drilling fluid costs is conducive to ensuring the realization of the overall goal of oil and gas field exploration and development. [0003] At present, the methods of drilli...

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Problems solved by technology

[0004] However, the empirical estimation method, technical measurement method and operation cost method in the existing drilling fluid cost prediction methods are all obtained based on manual experience and a small amount of test data, and are greatly affected by the geological conditions of the drilling construction site and the drilling process. The estimation error is relatively large, so it is impossible to establish an objective and accurate cost budget system

However, the statistical analysis method does not distinguish between the main formula of drilling fluid and the maintenance formula, and does not accurately simulate the usage of drilling fluid at the construction site, so it cannot accurately reflect the actual usage and distribution of drilling fluid costs

Therefore, the traditional drilling fluid cost prediction method has low prediction accuracy for drilling fluid cost and cannot provide real and effective guidance for drilling fluid cost in actual production

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