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套管头
套管头是连接套管和各种井口装置的一种部件。用以支持技术套管和油层套管的重 力，密封各层管间的环形空间，为安装防喷器。油管头和采油树等上部井口装置提供过 渡连接，并且通过套管头本体上的两个侧口，可以进行补挤水泥，监控井沉和注平衡液 等作业。 我公司生产的套管头是标准型结构，在其壳体内配套安装我公司的套管悬挂器，并 可根据套管程序和井口条件的变化选择不同尺寸规格的套管悬挂器。这种本体的上部均 为API 6B法兰或API 6BX法兰。 套管头的任选项有： 套管头下部连接可以是API标准圆螺纹套管母扣连接或API标准偏梯形套管螺纹母 扣连接，亦可以是插焊式套管连接，也可以是卡瓦式连接。 可以提供组焊式支承底盘。 侧出口有管线螺纹式和栽丝式两种。栽丝式侧口加工有R1(1/2)” 换阀器的母螺纹。 JDT系列油气井套管头是我公司在国内外油田使用的各类钻井、采油套管头基础上， 结合钻井工艺流程的实际情况，吸收各种套管头的优点，为简化安装程序，进一步提高 套管悬挂的安全、可靠性。
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套管头
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CASING HEAD
The casing head is used to connect the connecting sleeve and various of wellhead devices,which could support the gravity of the technical casing and the production casing and seal the annular space among the pipes.In addition, it's also helpful to install the blowout preventer,the tubing head,the Christmas tree and other upper wellhead device.What's more,with the 2 side ports on the casing head body,it would be available to supply cement,inspect the well sink and add into the balance fluid.
The casing head supplied by the Company is with the standard structure.In addition,the casing head is equipped with the casing hanger produced by the Company inside the shell.It's also available to select the casing hangers at different sizes according to the casing program and the wellhead conditions.The upper part of the body is API 6B flange or API 6BX flange
Options of Casing Head:
The sub-unit connection of the casing head could be API round-thread casing connection,API partial- trapezium thread casing connection,the inserted-welding casing connection or the slips connection.
It's available to supply the group-welded supporting chassis.
There are 2 kinds of side outlets,the screw-thread one and the cutting silk one.The cutting-silk side outlet is with the female screw ofthe R1(1/2)”valve converter.
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