Method for determining magnitude of water body of water drive gas reservoir

A technology for water-driven gas and water bodies, which is applied in the fields of fluid production, earth-moving drilling, wellbore/well components, etc., to achieve the effect of improving authenticity, obtaining data quickly and easily, and with high accuracy

Pending Publication Date: 2019-02-15
SOUTHWEST PETROLEUM UNIV
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  • Abstract
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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the method for determining the size of the water body in the water drive gas reservoir provided by the present invention solves the problem of how to accurately and reasonably determine the size of the water body in the water drive gas reservoir

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  • Method for determining magnitude of water body of water drive gas reservoir
  • Method for determining magnitude of water body of water drive gas reservoir
  • Method for determining magnitude of water body of water drive gas reservoir

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Embodiment Construction

[0050] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0051] In one embodiment of the present invention, as figure 1 As shown, a method for determining the size of a water body in a water drive gas reservoir includes the following steps:

[0052]S1. Obtain the dynamic production data of the gas reservoir to be tested;

[0053] The dynamic production data of the gas reservoir to be tested obtained by recording the actual production status of the production well in the above st...

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Abstract

The invention discloses a method for determining the magnitude of a water body of a water drive gas reservoir. The method for determining the magnitude of the water body of the water drive gas reservoir comprises the steps that according to new water drive gas reservoir material balance, when the magnitude of the water body is definite, a line relationship appears in (GB<g>+WB<w>) / (B<g>-B<gi> and Sigma Delta <piq> (t<n>-t<i-1>)<D> / (B<g>-B<gi>), and the line relationship is further called a water invasion indicating curve. The Sigma Delta <piq> (t<n>-t<i-1>)<D> / (B<g>-B<gi>) is a horizontal ordinate, the (GB<g>+WB<w>) / (B<g>-B<gi> is a longitudinal ordinate, water invasion indicating curves under different water body multiples are made, relevant coefficients of the water invasionindicating curves of the magnitude of different water bodies are compared, the magnitude of the water body corresponding to the optimal water invasion indicating curve of the relevant coefficients isthe magnitude of an actual gas reservoir water body, and the method for determining the magnitude of the water body of the water drive gas reservoir has higher accuracy. The magnitude determined by the method of the water body is provided data support for gas reservoir development.

Description

technical field [0001] The invention belongs to the technical field of gas reservoir development, and in particular relates to a method for determining the water body size of a water drive gas reservoir. Background technique [0002] my country is rich in natural gas reserves, and water drive gas reservoirs are widely distributed. The edge and bottom water of water drive gas reservoirs constitute the gas in water drive gas reservoirs. Reasonable calculation of water body size in water drive gas reservoirs is extremely important in the process of oil and gas development, and has a great impact on the production of wells in reservoirs. The calculation, dynamic analysis, numerical simulation, etc. are very important, and at the same time have important guiding significance for the adjustment and excavation of water drive gas reservoirs in the later stage. The size of the water body of the gas drive reservoir. [0003] Although the methods for calculating water influx in water dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B43/20
CPCE21B43/20E21B49/00
Inventor 李闽何彦均赵金洲胡鹏轩梁彬
Owner SOUTHWEST PETROLEUM UNIV
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