安装采油树是要对角上紧螺栓。
Make up and tighten the bolts diagonally when the X-tree is installed.
应用于钻井和完井系统、钻井四通、采油树、油管头和管汇。
Should be used for well drilling sum finish well system, well drilling Sitong, Christmas tree, Oil pipe head sum administer remit.
此种采油树在塔里木探区推广应用十多井次，使用效果良好。
This type of production tree has been applied in tarim oilfield for more than ten wells and achieved a better result.
由单个阀门组成的装在自喷井上的采油树。它不是由整体金属块制成。
Christmas tree on a flowing well that is made of individual valves instead of manufactured out of a solid metal block.
当采油树或防喷器组关闭时，施加在井口单位面积上的力称之为为关井压力。
The surface force per unit area exerted at the top of a wellbore when it is closed at either the Christmas tree or the BOP stack.
其中大四通和双管结构是组成采油树的主要部件，也是整个装置的主要承压部件。
And the big tubing cross and the double barrel structures are compose the production tree the major component, is also the entire installment main bearing pressure part.
一种水下采油树，它在水平轴线上装有总闸门和流动控制设备，以便最大限度地降低装置的高度。
Christmas tree design for subsea applications, configured with the master valves and flow-control equipment on a horizontal axis to minimize the assembly height.
防喷管安装在采油树的顶部，被试压，把工具放入到防喷管中，然后防喷管加压到与井眼压力一致。
The lubricator is installed on top of the tree and tested, the tools placed in the lubricator and the lubricator pressurized to wellbore pressure.
目前，智能完井技术在国外已经应用到水平井、大位移井、分枝井、边远井和水下采油树井及多层采油井和注水井。
Nowadays, smart well technique has been applied to horizontal well, offset well, multi-lateral well, remote area and subsea operation and also to production well and injection well.
本实用新型提供一种整体式采油气树，其特征是四通和相互连接的主杆为一个空心长方体的整体锻压件；
The utility model provides an integral petroleum production tree, which is characterized in that a pipe cross and mutually connected main bars are a hollow and cuboid integral forging piece;
本实用新型提供一种整体式采油气树，其特征是四通和相互连接的主杆为一个空心长方体的整体锻压件；
The utility model provides an integral petroleum production tree, which is characterized in that a pipe cross and mutually connected main bars are a hollow and cuboid integral forging piece;
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