Cementing System

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Top cementing + bottom sectionalisation process

时间:2023-04-10阅读: 271次


Process Description.
One trip down the column to meet the needs of top casing cementing and fracturing of the bare borehole section.

 The ball holder can be drilled into the fracturing slicker, so that the internal wall cleaning and milling + ball holder drilling and grinding can be completed simultaneously.

The upper part of the cementing sleeve is equipped with a sealing mechanism to ensure the wellbore integrity of the fractured tubular column during fracture pumping.

Tubular column structure.

Casing + return joint seal cylinder + cementing hydraulic sleeve + naked eye packer + ball drop fracture sleeve + naked eye packer + differential pressure sleeve + pressure bearing short joint + floating shoe.

Insertion of seal barrel + back joint seal insert.

The 3.5" tail pipe segmented fracturing column slip set can be divided into 15 segments with ball drop sizes of 1.125"-2.625".

The 4.5" tailpipe fracturing column slip set is available in 20 sections with a ball size of 1.125"-3.75".

The 5.5" tail pipe fracturing column slip set is available in 24 sections with ball sizes 1.125" - 4.58".

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