Method for evaluating multi-level development potential of whole-loading oil field in high water-cut period based on improved QFD

Abstract

The invention provides a method for evaluating multi-level development potential of whole-loading oil field in high water-cut period based on improved QFD. The core tool of the method is an evaluationhouse, which consists of nine parts, namely a development effect evaluation index matrix, a technical measure matrix, a development effect index and technical measure correlation matrix, a technicalmeasure first-level, second-level and third-level application potential matrix, and a first-level, second-level and third-level development potential matrix. The multi-level development potential of whole-loading oil field in high water-cut period after different technical measures are carried out can be analyzed. Compared with the numerical simulation, the method is simple and convenient: after the mutual correlation matrix is determined, the application potential of various levels of technical measures is evaluated, and the multi-level development potential of the target oil field can be calculated; at the same time, the method also realizes the development potential evaluation corresponding to the technical measures of different grades which are already applied in the local block and are applied in the same block and are to be applied in the test stage, and has higher reference value for the actual production of the mine field.

Description

technical field [0001] The invention relates to oil and gas field development theory and system engineering optimization, belongs to the field of oil and gas field development engineering, and particularly relates to a system method for evaluating and screening the development potential of integrated oil fields in high water cut periods based on improved QFD. Background technique [0002] Integrated oilfields refer to relatively large-scale oil reservoirs that have not been damaged by later geological movements after their formation, with complete traps and large reservoir areas and thicknesses. This type of oilfield is found in Daqing Oilfield, Shengli Oilfield, Liaohe Oilfield Oilfields and other areas are widely distributed and are an important part of my country's oilfield types. Most of the packaged oilfields have been developed for a long time and are currently in a period of high water cut. Taking Shengtuo, Gudao, Gudong and Chengdong oilfields in the Shengli Oilfield ...

AI Technical Summary

Problems solved by technology

However, the QFD method has not been popularized and applied in the field of oil and gas field development. The main reason is that the traditional conversion tool quality house in the QFD method has certain incompatibility in the evaluation of oilfield development potential, which is mainly manifested in: ① The core tool in the QFD method - House of Quality (e.g. figure 1 shown), including customer demand matrix, technical feature matrix, technical feature relationship matrix, technology evaluation matrix, importance matrix of customer needs and planning matrix, the main function is to convert customer needs into technical features of products, according to its traditional The calculation method is to optimize the technical index according to the final design goal, and in the process of oilfield development potential evaluation, it is necessary to evaluate the impact on the development effect according to the progress of technical characteristics, which is a reverse process compared with the traditional QFD calculation method;② In the actual oilfield development process, there are many kinds of technical adjustment measures, and the development problems targeted by various technical measures are different. Different development technical adjustment measures have different adjustment effects, and with the progress and development of science and technology, technical measures also In the process of continuous innovation, the improvement degree of different technical measures needs to be considered in the process of development potential evaluation, which is difficult to achieve in the traditional house of quality; Network densification, support and stop, sidetracking, hole repairing and layer modification, large pump (lifting liquid), profile control, water plugging, sand control, subdivided water injection, acidification, fracturing, CO 2 Flooding, chemical flooding, ASP flooding, etc., when considering the correlation matrix of development potential and technical measures, if all the types of technical measures are put into the technical characteristic matrix, the correlation matrix will be very complicated and the reliability is not strong. The value is not high, and it is difficult to promote and apply in actual mines

To sum up, the traditional QFD method cannot meet the objective needs of evaluating the development potential of mature oilfields.

Images