Gas well self-adaptive flow-regulating water-controlling device and design method thereof

Abstract

The invention relates to a gas well self-adaptive flow-regulating water-controlling device and a design method thereof. The design method comprises the following steps that step one, basic parametersof a certain horizontal well are obtained; step two, the flow and inlet speed of each self-adaptive flow-regulating water-controlling device are determined according to the installation number of self-adaptive flow-regulating water-controlling devices of the horizontal well; step three, according to the basic parameters of the step one and the inlet speed of the step two, a preliminary geometricalmodel is designed and the simulation calculation condition is arranged, and simulation parameter exploration is carried out on the preliminary geometrical model; step four, the preliminary geometrical model and the simulation calculation condition in the step three are tested, and data compassion is carried out on a tested experimental result and a simulation result; and step five, numerical optimization is carried out on the self-adaptive flow-regulating water-controlling device based on DOE orthogonal experimental design. According to the design method, the problems of indistinct design thought, low simulation precision and the like are solved, and the water-controlling yield-increasing effect of the gas well self-adaptive flow-regulating water-controlling device is increased.

Description

Technical field [0001] The invention belongs to the technical field of oil and gas well water control and completion, and particularly relates to an adaptive flow regulation and water control device for gas wells and a design method thereof. Background technique [0002] The problem of bottom water ridges during the development of horizontal wells in bottom-water gas reservoirs shortens the water-free oil recovery period of bottom-water gas reservoirs, seriously affecting the productivity advantages of horizontal wells and restricting the efficient development of bottom-water gas reservoirs. Key factors. Traditional ICD water control tools are only suitable for horizontal wellbore before water breakthrough, and are invalid for gas wells after water breakthrough. [0003] At present, in view of the shortcomings of ICD, it has been improved, and an automatic inflow control device with intelligent selection and suppression of unfavorable fluids has been developed. According to the di...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a gas well self-adaptive flow regulation and water control device and its design method, which can carry out scheme design for the self-adaptive flow regulation and water control device, and overcome the current design ideas of gas well self-adaptive flow regulation and water control devices. Clear, low simulation accuracy and other issues, and save design cycle and efficiency

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