A WELLHEAD RISER CONNECTABLE TO THE DEVICE FOR TESTING AND DIRECT MONITORING THE CONNECTION EFFICACY OF SAID WELLHEAD RISER TO THE WELLHEAD - PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LTD

Title:

A WELLHEAD RISER CONNECTABLE TO THE DEVICE FOR TESTING AND DIRECT MONITORING THE CONNECTION EFFICACY OF SAID WELLHEAD RISER TO THE WELLHEAD

Document Type and Number:

WIPO Patent Application WO/2021/002809

Kind Code:

A3

Abstract:

This invention aims to provide a wellhead riser (100) capable to monitor the connection efficacy of the wellhead riser to the wellhead from the use of the external connecting tool (310) connected to the external port (300), wherein the wellhead riser (100) comprising: the hollow cylindrical body (110) connecting between the blowout preventer connector (BOP connector) (120) and the wellhead connector (130) of said hollow cylindrical body, where the gasket groove (131) is disposed in the wellhead connector (130); the ring gasket (200) having the gasket passage way (210) disposed in the gasket 10 groove (131); and the external port (300) disposed in the wellhead connector (130); characterized in that the wellhead connector (130) comprising at least one annular bore (132), wherein one side of the annular bore (132) connects between the external port (300) and the gasket groove (131) to allow the fluid inside the hollow cylindrical body (110) flowing through the gasket passage way (210) to the external port (300) or vice versa, in order to test whether the connection of said wellhead riser (100) to the wellhead (500) is effective.

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WO/2014/098862	FLOW CONTROL DEVICES AND METHODS OF USE
WO/2018/067968	CHOKE SYSTEM FOR WELLHEAD ASSEMBLY HAVING A TURBINE GENERATOR
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Inventors:

RUTLAND GARY MARVIN (TH)
NIMSUK MONCHAI (TH)
RANGSRIWONG PHATTARAKORN (TH)

Application Number:

PCT/TH2020/000036

Publication Date:

August 19, 2021

Filing Date:

June 04, 2020

Export Citation:

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Assignee:

PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LTD (TH)

International Classes:

E21B43/12; E21B33/03; E21B33/035; E21B33/038; E21B33/04; E21B43/013

Foreign References:

US2531596A	1950-11-28
US8650934B1	2014-02-18
US3643751A	1972-02-22
US3291490A	1966-12-13
US20140060805A1	2014-03-06

Attorney, Agent or Firm:

SUWANPRATEEP, Dhiraphol et al. (TH)

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