Research and Application of Wellhead Suspension Diversion Device for Bundling Coiled Tubing
As an oil and gas production string,the bundling coiled tubing,with a characteristic of independ-ent multichannel operation,can be used to enable two-gas commingled production,achieving efficient exploitation of multiple reservoirs in the same well,especially those with significantly different physical properties.Considering that the existing conventional wellhead large-diameter pipe string suspension system is complex in support compo-nents and limited for application,and also the need to consider both diversion and sealing,a wellhead device based on the bundling coiled tubing two-gas commingled production technology was developed by adopting a multi-lobe suspension structure and specialized diversion component.With the functions of wellhead suspension and di-version sealing,this device can solve the problem of inconsistent direction between the two inner pipes of the bund-ling coiled tubing and the reference plane of the four-way valve bypass center.The laboratory test and field applica-tion results show that the bundling coiled tubing suspension diversion device can complete the specified testing con-tent,achieve the suspension and subchannel control of the bundling coiled tubing at the wellhead,and meet the requirements of field application.This device provides feasibility for the completion of two-gas commingled produc-tion,ensures the safety of operation,and supports the application and promotion of the bundling coiled tubing two-gas commingled production technology.
bundling coiled tubingwellhead suspensionBOPdiversiontwo-gas commingled production
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维普
