Method for optimizing technical measures of fault block old oil field based on improved QFD

Abstract

The invention provides a method for optimizing technical measures of a fault block old oil field based on improved QFD. Based on the basic thought of QFD, a technical decision house is put forward, which consists of an index improvement demand degree matrix, a development effect evaluation index matrix, a technology measure classification type matrix, an evaluation index and technical measure correlation matrix, a technical measure primary importance degree matrix, a technical measure improvement rate matrix, and a development effect improvement matrix; combined with a fuzzy comprehensive evaluation the two-stage expansion method, the complicated technical measures are optimized and ordered, a set of optimized methods for the potential-tapping measures of the fault block old oil field forthe water drive development are formed, and the application of examples is explained. According to the method, a technical decision house model is utilized, the development stage characteristics of the fault block old oil field are fully considered, and by using the production experience accumulated form field measure adjustment, the workload of numerical simulation work is greatly reduced, and the working efficiency is improved. The technical measure optimization method has higher practical application value and reference significance.

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 method for optimizing technical measures of fault block old oil fields based on improved QFD. Background technique [0002] Fault-block oilfields occupy an important position in my country's oilfield types, mainly distributed in Shengli, Zhongyuan, Jiangsu, and Jianghan oil areas. Only the oilfields under the jurisdiction of Sinopec have more than 452 development units of sandstone fault-block oil reservoirs, which are an important component of my country's oilfields part. Since the discovery of the first fault-block oilfield—Dongxin Oilfield, the development of fault-block reservoirs in my country has a history of nearly 50 years. Most of the fault-block reservoirs in old oil areas are currently in the stage of high water-cut development. The oilfields under t...

AI Technical Summary

Problems solved by technology

However, due to the functions and adaptability of each component of the traditional QFD quality house, it is no longer fully applicable in the process of optimizing and screening oilfield development measures

First, the traditional customer demand matrix cannot reflect the engineering goals of measure selection. It is necessary to combine the actual target effect of the oilfield and the pertinence of technical measures to reasonably select the evaluation indicators or aspects of development effects; second, the traditional house of quality customers The degree of demand importance is mostly adopted by literature reading method, data collection method, field interview method, etc., which is limited by sample conditions and lacks a relatively systematic theoretical analysis and evaluation basis. However, there are various dynamic indicators of oilfield development effects, and it is necessary to analyze various indicators. Only by systematic evaluation can we determine the main problems existing in the current situation of oilfield development and determine the importance of different development aspects; layer, change to larger pump (liquid extraction), profile control, water plugging, sand control, subdivided water injection, acidification, fracturing, CO 2 There are many types of technical measures such as flooding, chemical flooding, and ASP flooding. If all of them are used as technical characteristics, the correlation matrix will be very complicated, the reliability is not strong, and the application value is not high. It is difficult to popularize and apply in actual mines

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