Oil-gas well yield increasing measure validity period calculating method
A calculation method and validity period technology, which is applied in the field of calculation of the validity period of oil and gas well stimulation measures, and can solve problems such as inaccurate determination of the validity period of production stimulation measures
Active Publication Date: 2020-03-20
PETROCHINA CO LTD
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[0005] In view of this, the present invention provides a method for calculating the validity period of stimulation measures for oil and gas wells to solve the problem of inaccurate determination of the validity period of production stimulation measures in the prior art
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[0036] In order to make the technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0037] The embodiment of the present invention provides a method for calculating the validity period of oil and gas well stimulation measures, the flow chart of the method is as follows figure 1 As shown, the method includes:
[0038] Step 101: Obtain the date range of the data of the well to be logged according to the statistical start date and the statistical end date of the valid period of the well to be logged, and filter the data within the date range to obtain multiple pieces of data whose production time is greater than 0.
[0039] Before this step, obtain the production data of the well to be logged, where the production data includes production date, production time, daily oil production, daily gas production, start date of valid period statis...
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The invention discloses an oil-gas well yield increasing measure validity period calculating method. The oil-gas well yield increasing measure validity period calculating method comprises the steps that according to the validity period statistics start date and the validity period statistics expiry date of a to-be-measured well, data in which production time is larger than 0 are obtained; according to the time sequence, the data are numbered from small to large, and the oil-gas yield value and the oil-gas yield moving average value corresponding to each number are calculated; according to thelarge-to-small sequence of the numbers, subtraction is conducted on each oil-gas yield moving average value and the oil-gas yield before the yield increasing measure, and after each-time subtraction,whether the difference value is smaller than or equal to 0 or not is judged; if the difference value is smaller than or equal to 0, whether the number corresponding to the difference value is the minimum value in the numbers or not is judged, and if the number corresponding to the difference value is the minimum value in the numbers, the yield increasing measure of the to-be-measured well is invalid; if the number corresponding to the difference value is not the minimum value in the numbers, subtraction is continuously conducted; and if the difference value is larger than 0, it is determined that the yield increasing measure validity period of the to-be-measured well is determined. According to the method, accurate determining of the yield increasing measure validity period is achieved, and the problem that in the prior art, judgment of the yield increasing measure validity period is not accurate is solved.
Description
technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a method for calculating the validity period of oil and gas well stimulation measures. Background technique [0002] During the development of oil and gas fields, in order to increase the production of oil and gas wells, it is necessary to take some measures to increase production. By evaluating the validity period of oil and gas well stimulation measures, the effect of production stimulation measures can be clearly known, which is beneficial to guide the further development of oil and gas fields. [0003] Taking fracturing and acidizing stimulation measures as an example, the industry standard "SY / T 5289-2016 Oil, Gas, Water Well Fracturing Design and Construction and Effect Evaluation Method" stipulates the calculation method for the validity period of oil and gas well fracturing stimulation measures; SY / T 6334-2013 Oil-Water Well Acidizing Design, Constr...
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Login to View More IPC IPC(8): E21B43/25
CPCE21B43/25
Inventor 王新红郑小雄宋友贵唐庆赵广天王栋
Owner PETROCHINA CO LTD