Gas well adaptive flow regulation and water control device and its design method

Abstract

The invention relates to a gas well self-adaptive flow regulation and water control device and its design method. The design method includes the following steps: Step 1: Obtain the basic parameters of a certain section of horizontal well; Step 2: Adaptive flow regulation and water control according to the section of horizontal well Install the number of devices, determine the flow rate and inlet velocity of each self-adaptive flow regulation and water control device; Step 3: According to the basic parameters of step 1 and the inlet velocity of step 2, carry out preliminary geometric model design and setting of simulation calculation conditions, And explore the simulation parameters of the preliminary geometric model; Step 4: Test the preliminary geometric model and the setting of simulation calculation conditions in Step 3, and compare the experimental results after the test with the simulation results; Step 5: Based on DOE Orthogonal experimental design is used to optimize the numerical value of the self-adaptive flow regulation and water control device. The design method of the invention solves the problems of unclear design ideas and low simulation accuracy, and increases the effect of water control and production increase of the gas well self-adaptive flow regulation and water control device.

Description

technical field [0001] The invention belongs to the technical field of water control and completion of oil and gas wells, and in particular relates to a gas well adaptive flow regulation and water control device and a design method thereof. Background technique [0002] The problem of bottom water ridges in the development of horizontal wells in bottom water gas reservoirs shortens the water-free oil production period of bottom water gas reservoirs, seriously affects the production advantages of horizontal wells, and has become a problem that restricts the efficient development of bottom water gas reservoirs by horizontal wells. key factor. Traditional ICD water control tools are only suitable for horizontal wellbore before water breakthrough, and are ineffective 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 functions for...

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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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