2016年2月16日 · VXT can be replaced using drill rig or specially equipped DSV with lightweight intervention package. Typically US$5-10mm + mob/demob. HTX requires use of drill rig to run BOP stack and recover completion. Typically US$15-60mm + mob/demob.

2016年8月6日 · Changing out horizontal trees is more cost and time consuming than replacing a vertical tree because whole completion string must be removed. Vertical subsea trees can be …

Boasting a streamlined tooling scope, the HXT™ Horizontal Tree triumphs over conventional subsea trees on multiple fronts — exhibiting not only reduced mass but also augmented flexibility. The Dril-Quip HXT™ significantly trims the carbon emissions linked to its lifecycle, encompassing manufacturing, transportation, and deployment.

Objective three is to describe the different XT configurations and how they affect the relia- bility of the subsea production system. The configurations are described in Section2.3. There are two main configurations which are the VXT and the HXT. A third configuration is also de- scribed; the DVXT is a modified version of the VXT.

2021年5月1日 · A VXT can be identified by the location of the production and annulus bore, which is placed vertically through the tree body with the primary valves placed in a vertical configuration. The HXT, which is known as the spool tree, is constructed in a horizontal configuration with production and annulus valves that are located around the tubing hanger.

2020年3月1日 · The subsea XTs falls mainly into two types: horizontal Xmas tree system (HXTs) and vertical Xmas tree system (VXTs). The main differences between HXT and VXT are configuration, size, and weight.

2021年3月31日 · 1. Vertical XT (VXT) – The valves are in a vertical arrangement with the tubing being landed in the wellhead itself, and then VXT is landed and locked onto the wellhead. With a VXT, to get to the tubing, the tree would first have to be removed, whereas, with an HXT, tubing is pulled with the HXT still locked onto the wellhead. 2.

2001年4月30日 · However, two vendors were building vertical tree (VXT) systems for water depths in excess of 5,000 feet. Both systems were installed in mid 1997. In addition, if a horizontal tree (HXT) were chosen, it would bein record water depths for an HXT.

2020年5月4日 · By including a Vertical Christmas Tree (VXT) rather than a Horizontal Christmas Tree (HXT) in their subsea completion design, several wells can be batch completed with a rig. VXT Installation can then be completed with an Installation, Maintenance, and Repair (IMR) vessel, eliminating the need for a Rig or Light Weight Intervention (LWI) vessel.

2011年6月18日 · Funnel Down Wellhead Interface Flowline Hub 18-3/4” H-4 Profile Mandrel 18-3/4” 15K Torus IV High Bending Moment Capacity Connector (inside funnel) Linear Override Valve Actuators • Increased functionality • Uses ROV installable tree cap • Insensitive to riser cleanliness Whi c h t o go? VXT Tubing Head EHXT HXT VXT Wellhead Whi ch ...