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A Method for Evaluation of Oilfield Development

An evaluation method and technology for oilfield development, applied in special data processing applications, instruments, electrical digital data processing, etc. problems, to achieve the effect of reducing the workload of evaluation, facilitating the comparison of development effects, and being easy to obtain.

Active Publication Date: 2017-06-13
PETROCHINA CO LTD
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Problems solved by technology

This kind of evaluation can only reflect the development status of the reservoir in the evaluation year, and cannot reflect the impact of previous technical policies on development, nor can it reflect the future trend of the current development situation
In addition, it is difficult to compare the development effects of similar reservoirs at different development stages

Method used

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  • A Method for Evaluation of Oilfield Development
  • A Method for Evaluation of Oilfield Development
  • A Method for Evaluation of Oilfield Development

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Embodiment 1

[0055] In view of this, the purpose of the embodiment of the present invention is to provide a method for oilfield development evaluation, the flow chart of the method is as follows figure 1 As shown, it specifically includes the following steps:

[0056] In step S101, the development dynamic data and inter-permeability experiment data of the research reservoir block in the reservoir block are obtained.

[0057] In the embodiment of the present invention, the selected research reservoir blocks have the characteristics of long development time, complete development stages, and normal production, and the number of selected research reservoir blocks is relatively large, so as to facilitate the establishment and obtain reliable evaluation results.

[0058] Step S102, dividing the research reservoir block into several development stages according to the water cut in the development dynamic data.

[0059] According to the water cut of the oil well, the development stage is divided ...

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Abstract

The invention discloses an oilfield development evaluation method. The oilfield development evaluation method includes that acquiring development dynamic data and phase permeability experiment data of a researched oil reservoir block; dividing the researched oil reservoir block into a plurality of development stages according to water content; confirming evaluation indexes of each development stage of the researched oil reservoir block; calculating the practical values and theoretical values of each evaluation index of each development stage of the researched oil reservoir block; calculating the threshold of each evaluation index of each development stage; confirming the weight of each evaluation index which influences the researched oil reservoir block development effect, and acquiring an evaluation index weight matrix; acquiring development dynamic data of an oil reservoir block to be evaluated; confirming the development stage of the oil reservoir block to be evaluated, and calculating the practical values of evaluation indexes of the development stage; building evaluation index subordinating degree functions of the oil reservoir block to be evaluated, and acquiring an evaluation index subordinating degree matrix; calculating comprehensive evaluation values of the oil reservoir block to be evaluated. The oilfield development evaluation method is easy to acquire data, the evaluation workload is lowered, and the result is reliable.

Description

technical field [0001] The invention belongs to the field of oilfield development, in particular to an evaluation method for oilfield development. Background technique [0002] Development effect evaluation is an eternal theme of oilfield development. In each stage of oilfield development, it is necessary to carry out development effect evaluation work to determine the direction and measures of oilfield adjustment and potential tapping. Management standards and norms such as "Oilfield Development Level Classification" (SY / T 6219-1996) and "Oilfield Development Management Outline" (2004) have been formed from the perspective of the petroleum industry and national oil companies. Many oilfields have also established Its own development evaluation system has played an important role in oilfield management and potential tapping. [0003] At present, from the perspective of various evaluation methods for different types of oil reservoirs, there are mainly three types of evaluati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 冯金德于立君雷启鸿柳良仁唐玮
Owner PETROCHINA CO LTD
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