2020年1月28日 · In the course of a P&A operation, regardless of the well type (i.e. land/onshore or offshore) and the XMT type (i.e. horizontal or vertical), at some point, the utilization of a BOP is unavoidable. Therefore, the primary and secondary temporary well barrier envelopes shall be established and maintained to secure the well while disassembling the ...

In-depth explanation of various subsea XMT design; Dual bore and Monobore VXT, HXT (various designs) The latest development in XMT design. Using API 17D as a reference; Explanation of various completion, wellhead, XMT, and BOP interfaces; Pros and Cons, selection criteria of …

the BOP and XMT. Run 2 The plug was RIH to release the VAULT RBP and Seal Assembly. The VAULT RBP was reset above the cut in the tie back, and the upper tie back portion was pulled to surface using the VAULT RBP as a spear. Result Operations were carried out as planned with the exception of pulling the tie back in run 2.

2016年8月6日 · Two BOP and riser runs are required for a horizontal tree, whereas only one time of BOP and riser run is needed for a vertical tree. For wells requiring several completion changes during the life cycle of a well, a horizontal subsea tree will save time and cost since there is no need to remove a tree or flow lines.

2020年1月28日 · One of the main problems of well operation is the risk of uncontrolled leakage of hydrocarbons into the environment. This problem is especially relevant for the long-term operation of wells. The...

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.

2021年11月23日 · More robust moonpool handling systems have been introduced often in combination with rigs with two well centres, enabling parallel operations with increased efficiency. Equipment like the BOP’s and XMT’s have increased in size, weight and complexity.

Subsea wellheads and Xmas trees are one of the most vital pieces of equipment in a subsea production system. It supports and seals casing strings and also supports the BOP stack during drilling and the subsea tree after completion.

This Micro VILT is about in depth explanation of various subsea XMT design, from old to latest covering dual bore and monobore VXT, HXT (various design), latest development in XMT design. Using API 17D as reference. An explanation of various completion, wellhead, XMT and BOP interfaces will be conducted.

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