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Integrated intelligent well completion design method of horizontal well

A design method and technology for intelligent completion, applied in design optimization/simulation, calculation, special data processing application, etc., to achieve the effect of improving the mining effect

Inactive Publication Date: 2017-08-08
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although phase control valves can control bottom water ridges well and enhance oil recovery, until now, there is no systematic design method for water control completion scheme design

Method used

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  • Integrated intelligent well completion design method of horizontal well
  • Integrated intelligent well completion design method of horizontal well

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment is an illustration of the water control design method when no packer is installed. Such as figure 1 As shown, the central pipe of the horizontal well is installed on the variable buckle joint 5 at the end of the wellbore 1. The central pipe includes a central pipe body connected by the pre-hole pipe 2 and the blind pipe 3. The pipe wall of the central pipe body is installed with The phase control valve 6 is equipped with a plug 7 at the end of the central pipe body, and a screen pipe 4 is set outside the central pipe body, and the end of the screen pipe 4 is installed on the variable button joint 5 of the wellbore 1 .

[0026] The integrated intelligent water control design method for horizontal wells provided by the present invention comprises the following steps:

[0027] 1) Preparation of basic parameters: including: reservoir physical parameters (reservoir size, reservoir permeability, reservoir porosity, reservoir pressure, etc.), reservoir fluid p...

Embodiment 2

[0036] This embodiment is an illustration of the water control design method when the packer is installed. Such as figure 2 As shown, the central pipe of the horizontal well is installed on the variable buckle joint 5 at the end of the wellbore 1. The central pipe includes a central pipe body connected by the pre-hole pipe 2 and the blind pipe 3. The pipe wall of the central pipe body is installed with The phase control valve 6 is equipped with a screen 4 on the outside of the central pipe body, and the end of the screen pipe 4 is installed on the variable buckle joint 5 of the wellbore 1, and a packer is installed on the outer side of the central pipe body and the inner annulus of the screen pipe 4 8.

[0037] The integrated intelligent water control design method for horizontal wells provided by the present invention comprises the following steps:

[0038] 1) Preparation of basic parameters: including: reservoir physical parameters (reservoir size, reservoir permeability,...

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Abstract

The invention discloses an integrated intelligent well completion design method of a horizontal well. The method comprises the steps as follows: 1) preparing basic data; 2) performing optimized design on a central tube structure; 3) determining whether to trip a packer (8) as well as the tripping position and mounting number; 4) designing the flow of each phase control valve (6) according to the fluid property and the yield; 5) optimizing the valve distribution mode of the phase control valves (6); 6) determining the best number of the phase control valves (6) according to the number of the phase control valves (6) as well as the relation between the flowing bottom hole pressure and the moisture content reduction amount; 7) evaluating the water reduction effect, yield increase effect and economic benefit of a final water control scheme. The method has the benefits as follows: water control well completion optimization design can be performed on the phase control valves, water control scheme design can be performed on ICD and AICD, the design method is applicable to water control well completion in both early and later periods, and water control scheme design can be performed on horizontal wells no matter whether packers are arranged in the horizontal wells or not.

Description

technical field [0001] The invention relates to the technical field of a water control method for oil exploitation, in particular to an integrated intelligent water control design method for horizontal wells. Background technique [0002] With the widespread application of horizontal wells in major oilfields, the problem of bottom water ridges and even breakthroughs is faced while improving oil recovery. After bottom water breakthroughs, the productivity of oil wells drops rapidly, which seriously affects the development effect of horizontal wells. Although various high-quality water control tools have been developed at home and abroad, mainly including: nozzle type ICD, channel type ICD, hybrid ICD, RCP valve, AICD, phase control valve, etc., among these water control tools, ICD is only suitable for Horizontal wells are completed in advance, that is, ICD water control tools can only delay the breakthrough of bottom water, but the water control effect of horizontal wells aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/02
CPCG06F30/20G06Q50/02
Inventor 李海涛阳明君王科王永清张楠
Owner SOUTHWEST PETROLEUM UNIV
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