Multi-objective optimization method for current limiting strength of horizontal well inflow control device (ICD)

A multi-objective optimization and inflow control technology, applied in design optimization/simulation, production fluid, earthwork drilling and production, etc., can solve problems such as lack of ICD current limiting strength design method and neglect of horizontal wells
CN109577968AActive Publication Date: 2019-04-05CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Publication Date
2019-04-05

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Abstract

The invention provides a multi-objective optimization method for current limiting strength of a horizontal well inflow control device (ICD). The multi-objective optimization method includes building ahorizontal well ICD completion flow coupling model; taking the horizontal well yield and water breakthrough time variable coefficient as the objective function, setting constraint conditions and building an ICD current limiting strength multi-objective optimization model; solving the multi-objective optimization model through an NSGA-II algorithm to obtain the optimal solution set of the multi-objective optimization method; ranking according to the the distance from all solutions in the optimal solution set to the ideal optimal solution and the ideal inferior solution through the Topsis method, thereby acquiring the optimal solution of the current limiting strength of the horizontal well ICD .
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Description

technical field

[0001] The present disclosure relates to the technical field of drilling and completion, and in particular to a multi-objective optimization method for flow limitation strength of a horizontal well inflow control device. Background technique

[0002] In recent years, with the development and maturity of drilling and completion technology, horizontal wells have been widely used in various reservoirs and achieved good development results. Due to the long travel distance of the horizontal well in the reservoir, the heterogeneity of the reservoir physical properties in the horizontal section, the difference in the water avoidance height and the heel-toe effect of the horizontal wellbore flow, etc., the production pressure difference and water breakthrough time of the wellbore are different, so It leads to premature breakthrough of bottom water and local large-scale sand production, which seriously affects the productivity of horizontal wells and the comprehensive...

Claims

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