Evaluating method for oil well measurement effect
An evaluation method and technology for oil well measures, which are applied in the fields of earthwork drilling, wellbore/well components, and production fluids, etc., and can solve problems such as non-compliance with the objective laws of oil well production and calculation of production stimulation effects without measures.
Active Publication Date: 2015-09-23
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0003] There are two obvious deficiencies in the current method in the mine field: First, the daily oil capacity of a single well before the traditional algorithm measures is usually taken as the daily oil capacity of the last month or a certain month before the measure, which is a fixed value, which is taken as Benchmark value for comparison of measure effects
Therefore, taking the fixed daily oil production capacity of a single well in a certain month before the measures as the benchmark value for the comparison of the effect of the measures does not conform to the objective law of oil well production
Second, the calculation of the effective period of the measures is limited to the current year when the measures are implemented, and the effect of the measures on increasing production has not been calculated across years. In fact, only the calculation of the increase in oil production across the year and within any time period can truly reflect the actual effects of the measures on increasing production and economic growth. benefit
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[0018] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.
[0019] Such as figure 1 as shown, figure 1 It is a flow chart of a specific embodiment of the oil well measure effect evaluation method of the present invention.
[0020] In step 101, the economic limit oil production of the oil well is determined. According to the principle of profit and loss balance, a chart of the relationship between the daily liquid production of a single well and the economic limit water cut is established to determine the economic limit oil production of an oil well under a certain oil price and a certain daily liquid production of a single well. The so-called economic limit water cut means that when the oil field (or oil well) is developed to a certain stage and its water cut reaches a certain value, the after-tax outpu...
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The invention provides an evaluating method for oil well measurement effect. The evaluating method comprises steps of first determining oil well economic ultimate oil output, second predicting output change trends of the oil well with application of measurements, third determining whether the measurements are efficient, fourth calculating oil well measurement period of validity, and fifth calculating oil well measurement oil increment. The evaluating method for oil well measurement effect meets objective rules, the measurement effect contrast reference value is not a fixed value and not restricted from measurement application years, so yield-increasing effect after oil well measurement application can be accurately evaluated; and oil field exploitation and production can be guided.
Description
technical field [0001] The invention relates to the technical field of oil field development, in particular to a method for evaluating the effect of oil well measures. Background technique [0002] At present, the current evaluation method for the effect of oil well measures in the oil field is: the difference between the daily oil production capacity of a single well after the measure and the daily oil capacity of a single well before the measure is greater than 1 is the judgment condition for the effective measure; when the measure is effective, the calculation measure The accumulative oil increment during the validity period of the current year is used as the main indicator for the evaluation of the effect of the measures. Among them, the monthly oil increment is equal to the product of the difference between the daily oil production capacity of a single well after the measures and the daily oil capacity of a single well before the measures and the number of calendar days...
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IPC IPC(8): E21B43/16
Inventor 苏映宏张海燕梁保红徐永春孙成龙赵小军张超李浩吕翔慧李东玻
Owner CHINA PETROLEUM & CHEM CORP