Novel method for measuring and calculating well pattern thickening potential

A new method, technology of well pattern density, applied in measurement, earthwork drilling and production, wellbore/well components, etc., can solve problems such as increasing contradictions, inability to reflect, and more and more obvious impact on oil displacement efficiency
CN106337679AInactive Publication Date: 2017-01-18CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2017-01-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a novel method for measuring and calculating well pattern thickening potential comprising following steps: 1. determining oil well single well economic limit recoverable reserves; 2. determining the relationship between the average single well increased recoverable reserves of a close-spaced well and the well density; 3. determining the density of the economic limit well pattern; 4. calculating the drilling well workload of well pattern thickening; 5. calculating the potential of well pattern thickening for increasing recovery efficiency. The novel method for measuring and calculating well pattern thickening potential can satisfy the demand of calculating technical economical policy limit such as economic limit well pattern density and limit thickening potential of extra high water reservoir, and can be more objective in evaluating the exploitation potential of oil reservoirs and guiding the oil field development production practice.
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Description

technical field

[0001] The invention relates to the field of oil and gas field development, in particular to a method for evaluating the development potential of an old oil field, that is, the measurement and calculation of the well pattern intensification adjustment workload of the old oil field and the prediction of the enhanced recovery rate. Background technique

[0002] At present, the current well pattern intensification potential in oilfields and mines is generally calculated by using the "well pattern density and recovery rate relationship formula". The unit is the empirical formula derived from the regression of the sample point, that is,

[0003] E R = E D × E V = ( 0.742 + 0.19 lg K e μ o ) · ...

Claims

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