Method and device for determining well pattern and well spacing of oil reservoir

A determination method and technology for determining devices, which are applied in wellbore/well components, earthwork drilling, and fluid production, etc., can solve problems such as difficulty in obtaining reliable results, and achieve the effect of improving accuracy and reliability.

Active Publication Date: 2016-03-16
PETROCHINA CO LTD
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Problems solved by technology

For the demonstration of reasonable well pattern and well spacing in the development plan, in addition to using empirical formulas or analogy methods for demonstration, numerical simulation methods are generally used for detailed demonstration, and the relia

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  • Method and device for determining well pattern and well spacing of oil reservoir
  • Method and device for determining well pattern and well spacing of oil reservoir
  • Method and device for determining well pattern and well spacing of oil reservoir

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Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] The embodiment of the present invention provides a method for determining well pattern and well spacing in oil reservoirs, such as figure 1 As shown, the method for determining the well pattern and spacing of the reservoir includes:

[0054] S101: Carry out stratigraphic correlation for the entire reservoir, and classify sedimentary facies and reservoir types;

[0055] S102: Select the planar combination models of sedimentary facies and r...

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Abstract

The invention provides a method and a device for determining the well pattern and well spacing of an oil reservoir well. The method for determining the well pattern and well spacing of the oil reservoir well comprises the following steps: comparing stratums of the overall oil reservoir and dividing sedimentary facies and stratum types; by selecting a sedimentary face and stratum type planar combination mode, calculating water-flooding control levels of different injection-production well patterns corresponding to different sedimentary face and stratum type planar combination modes; determining the sedimentary face and stratum type planar combination mode of different stratum positions of a to-be-measured area and geological reserves at different planar combination modes; calculating the integral water-flooding control level of the to-be-measured area at different injection-production well pattern conditions based on the geological reserves and the water-flooding control levels of different injection-production well patterns; drawing a curve chart of the integral water-flooding control level of the to-be-measured area and the total well amount at different well patterns and different well spacing, and determining the well pattern and the well spacing of the oil reservoir of the to-be-measured area according to the curve chart. By the device and the method disclosed by the invention, reasonable well pattern and well spacing of the oil reservoir are determined; meanwhile, the device and the method are combined with numerical simulation research results to improve the accuracy and reliability of evaluation results.

Description

technical field [0001] The invention relates to the technical field of well pattern and well spacing of oil reservoirs, in particular to a method and device for determining well pattern and well spacing of oil reservoirs. Background technique [0002] Reasonable well pattern and well spacing are the key technical countermeasures for efficient reservoir development, a development technical countermeasure that must be demonstrated in detail in the reservoir development plan, and a technical problem that has plagued scientific researchers for many years. For the demonstration of reasonable well pattern and well spacing in the development plan, in addition to using empirical formulas or analogy methods for demonstration, numerical simulation methods are generally used for detailed demonstration, and the reliability of the demonstration results depends on the reliability of the geological model and numerical simulation. The level of researchers, so this method also has certain li...

Claims

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Application Information

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IPC IPC(8): E21B43/20E21B43/30E21B49/00
CPCE21B43/20E21B43/30E21B49/00
Inventor 李勇田昌炳李保柱朱怡翔钱其豪彭晖熊礼晖张琪丁伟胡云鹏
Owner PETROCHINA CO LTD
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