陈国荣
CHEN Guorong

• 1:大庆油田有限责任公司采气分公司

摘要(Abstract)：

利用试井资料可以确定油、气井的生产能力、地层参数、储层的平面展布及井间连通关系等。试井分析是一种被称为解"反问题"的过程,对于反问题的求解,不可避免地存在多解性的问题。然而在矿场实践中,每一组数据只能对应一种解释结果,试井成果的准确性和可靠性受到了试井资料多解性的制约,使用价值降低。庆深气田储层和流体特性复杂、构造及井网特征复杂,经过多年开发,试井过程中多解性问题较为突出。从试井资料多解性的产生因素人手,充分考虑了储层发育、流体特征、构造特点等因素,分析了测试仪器性能、下深、测试时间、井的状态、资料录取、模型选择等因素对试井解释结果的影响,给出了排除试井解释成果多解性的原则和途径。会解人员可以据此排除资料的多解,保留较为合理的一个解释结果,为油田开发提供符合现场生产实际的试井解释参数。
With the help of well testing data,the productivity of oil and gas wells,formation parameters,planar distribution of reservoirs and inter-well connected relationships etc can be determined.Well test analysis is regarded as a process to solve "inverse problem".It is unavoidable to exist multi-solution problem about how to solve the inverse problem.However,in practice a set of data only corresponds to one kind of interpretation.Therefore the accuracy and reliability of the well testing achievements are limited and restricted by the multiple solutions,and even worse the operating value is reduced.Qingshen Gasfield is characterized by comprehensive reservoirs and fluid speciality and moreover the complex structures and well pattern features.With many years of the development,the multi-solution problem become more prominent in the process of the well test.So from the viewpoint of the factors resulting in multi-solution characteristics of the well testing data,through considering the reservoir development,fluid characteristics,structural features and so forth,the influences of the following factors on the well test interpretation results are analyzed:the performance of the instrument,the run-in depth,tested time,well conditions,data obtaining,model choosing and so on;Besides,the principles and ways are established to exclude the multiple solutions of the well testing interpretation.According to the above methods,the interpreter can solve the problem andremain one more rational interpreted result,thus the parameters off the test interpretation according with the field operation are provided for the oilfield development.

关键词(KeyWords)： 试井资料;反问题;多解性;双对数拟合;测试仪器
well testing data;inverse problem;multiple solution;double logarithmic match;testing instrument

Abstract:

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基金项目(Foundation):

作者(Author): 陈国荣
CHEN Guorong

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