WO2003016673A1 - Tool for replaceable pressure and temperature sensor - Google Patents

Tool for replaceable pressure and temperature sensor Download PDF

Info

Publication number
WO2003016673A1
WO2003016673A1 PCT/GB2002/003041 GB0203041W WO03016673A1 WO 2003016673 A1 WO2003016673 A1 WO 2003016673A1 GB 0203041 W GB0203041 W GB 0203041W WO 03016673 A1 WO03016673 A1 WO 03016673A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
tool
chamber
pressure
tool assembly
Prior art date
Application number
PCT/GB2002/003041
Other languages
French (fr)
Inventor
Tim Gay
Original Assignee
Kvaerner Oilfield Products Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kvaerner Oilfield Products Limited filed Critical Kvaerner Oilfield Products Limited
Priority to BR0205712-3A priority Critical patent/BR0205712A/en
Priority to GB0327783A priority patent/GB2393991A/en
Publication of WO2003016673A1 publication Critical patent/WO2003016673A1/en
Priority to NO20030950A priority patent/NO20030950D0/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/04—Manipulators for underwater operations, e.g. temporarily connected to well heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure

Definitions

  • the invention relates to a tool assembly for a replaceable subsea sensor of the type communicating with pressure in a well or other equipment or installation.
  • the invention relates to a tool assembly for remotely deploying and/or retrieving a sensor of the abovementioned type, such as a pressure and temperature sensor, for use at a remote subsea location, e.g. on a subsea wellhead, christmas tree, manifold or flowline (collectively described as Seabed Installed Production Equipment or SIPE) for oil and/or gas production.
  • a sensor of the abovementioned type such as a pressure and temperature sensor
  • SIPE Seabed Installed Production Equipment
  • a sensor is installed on a subsea wellhead, christmas tree, manifold or flowline assembly at or adjacent to the well bore and/or other passageway for process fluids (oil and/or gas).
  • a sensor should fail, it may be necessary to shut down production, release the SIPE and bring the SIPE to the surface, and to replace the sensor. That done, it is then necessary to re-install the SIPE on the seabed and to re-start production. This is costly, and necessitates the loss of significant volumes of production.
  • a sensor can be arranged on the wellhead for replacement in situ, in shallow water, this can be effected by divers but there are substantial safety considerations due to the connection to the well bore pressure. Also, in deeper water divers are not able to operate and it becomes desirable to be able to use a Remotely Operated Vehicle (ROV).
  • ROV Remotely Operated Vehicle
  • the present invention is directed towards providing a tool assembly and method of operation enabling a sensor to be deployed and/or removed by a ROV that is constrained to a location outside the spatial envelope of the pipe fittings of a SIPE, or in otherwords outside the tree envelope.
  • the tool may also be used by other installation techniques in suitable locations, e.g. by divers.
  • the invention provides a tool having a connection to engage an attachment on an SIPE containing a sensor, a chamber within the tool to receive the sensor, a connection within the chamber to engage the sensor, and means to cap and seal an aperture in the attachment through which the sensor is to be withdrawn, in which there is means to withdraw the sensor from the attachment into the chamber, and means to isolate the chamber from pressure in a bore of the SIPE, whereby the tool can be disengaged from the attachment when the sensor is in the chamber without compromise to the pressure containment of the bore.
  • the attachment has a ball valve seal
  • the tool has means to operate that ball valve seal.
  • the ball valve is operable by a pair of hydraulic cylinders mounted on the exterior of the tool.
  • a ram operable with the chamber which is capable of engaging the sensor when the sensor is within the attachment, of disengaging the sensor from the attachment, and of withdrawing the sensor into the chamber.
  • a flushing means to clean the tool after the tool has withdrawn the sensor into the chamber, and before the tool is disconnected from the attachment.
  • the chamber has a test port with bleed and or pressure test equipment.
  • the invention also provides a tool as claimed as described above in combination with an attachment to a SIPE bore, and having a ball valve for sealing that bore.
  • Figure 1 shows a combined pressure/temperature sensor attached to a well bore
  • Figure 2 shows measurement leads attached to that sensor
  • Figure 3 is a sectional view of a tool engaged over the sensor location
  • Figure 4 is a sectional view similar to Figure 3 showing the tool engaging the sensor
  • Figure 5 is a sectional view similar to Figure 4 showing the sensor within the tool
  • Figure 6 is a side view showing a mechanism for operating an isolation valve on the attachment.
  • An assembly 1 is attached to the tree bore 2 by a flange 3, which may be an API flange.
  • the assembly has a sealing interface into which sensor 4 can be screwed by screw fitting 5, sealing being by way of any suitable seal such as a metal C-ring face seal with an elastomeric barrel seal as back up.
  • External to the sealing interface is a through bore valve 6, for example a 1.5" (370mm) quarter turn ball valve.
  • This ball valve is in the open position when the sensor is in situ, passing through the valve as shown.
  • the valve is fitted with a paddle arrangement (see Figure 6) allowing hydraulic cylinders on the tool to open and close the ball valve.
  • External to the ball valve is the female side of a connection 7 such as a ⁇ owen' quick union.
  • the senor In its installed condition, the sensor is preferably screwed into place, passing through the ball valve although other arrangements such as a push fit are possible.
  • a protection cap 8 is installed onto the exterior of connector 7 to protect the threads and sealing face. Electrical connection to the sensor is by any suitable underwater electronic connector, such as a Tronic connector 9 that passes through the centre of the protection cap into a receptacle at the rear of the sensor.
  • a special tool in accordance with the invention is required.
  • the tool is shown in Figures 3 to 6.
  • This tool contains mechanisms to seal itself over the sensor location on to the outside of connector 7 (after removal the cap 8) unscrew and withdraw the sensor, and carry out flush and pressure test activities.
  • the tool is able to be carried by a ROV. Reverse of these procedures enables deployment of a new sensor.
  • the main sensor to well bore seal would generally be a relatively small diameter metal C-ring, although other suitable seals may be used. This would provide the primary seal against well bore pressure, but might not seal in the reverse direction sufficiently for very deep water.
  • a back up barrel seal on the body of the sensor for example either elastomeric or PEEK, can be used to form the environmental seal, as well as backing up the primary seal.
  • the tooling would be deployed by and controlled from a Tool Deployment System (TDS) as currently used on ROVs for other purposes.
  • TDS Tool Deployment System
  • the length of the tool means that it should be possible to reach the sensor from outside the tree envelope, but it would require an unobstructed passage to allow the tool access.
  • the ROV In order to replace a combined pressure and temperature sensor, the ROV needs to be equipped with a TDS, fitted with the tooling shown in Figures 3 to 6, together with Test and Flushing Unit.
  • This latter can be a ROV mounted unit with fluid storage capacity, able to produce sufficient flow for flushing the sensor pipework prior to removal and after reinstallation; and to produce high pressure fluid for pressure tests of seals and valves.
  • the unit should also have capacity to store liquid flushed out from the sensor for later disposal.
  • the Test and Flushing unit is attached to the tooling via hydraulic hoses.
  • a ROV fitted with the TDS and tooling is deployed to the equipment with the failed sensor.
  • the ROV using its manipulator, disconnects and parks the electrical connector from the sensor.
  • the cap protecting the threads and sealing surface is removed.
  • the ROV then docks onto the tree panel with the TDS and deploys the tool onto the sensor interface (connector 7).
  • the make up function of the tool is then operated, locking the tool to the interface by way of a quick union.
  • the pressure test is employed to ensure the union is properly sealed and the 'extend" function on the tool used to drive the socket of the connector tool 14 onto the rear of the sensor.
  • the sensor is unscrewed, and retracted back into the body of the tool.
  • the ball valve on the sensor is closed and pressure tested, followed (optionally) by a second ball valve (not shown but further from the bore).
  • the body of the tool is then flushed clean.
  • the make up function on the tool is reversed, the tool is retracted and the TDS is unlocked.
  • the ROV is then recovered to the surface.
  • the failed sensor is removed from the tool, and a replacement sensor is fitted.
  • the ROV is redeployed and docks back onto the tree panel with the TDS, and deploys the tool onto the sensor interface.
  • the make up function of the tool is then operated, locking the tool to the interface by way of the quick union.
  • the pressure test function is employed to ensure the union is properly sealed.
  • the ball valve (or valves if there are two) is/are then opened, the sensor extended forward and screwed into place.
  • the sensor is pressure tested and monitored.
  • the tool body is flushed, and the tool disconnected and removed.
  • the ROV then replaces the protective cap and re-installs the electrical connection. This completes the sensor change-out.
  • SIPE Seabed Installed Production Equipment

Abstract

A tool for installing and removing a replaceable sensor. The tool has a means (10) for sealing over the sensor location on a subsea installation, and for engaging the outboard end of the removable sensor. After equalising pressure to that experienced by the sensor, the sensor is withdrawn into a chamber (16) within the tool. Isolation valve (6) is then closed to seal the subsea installation. Pressure within the chamber of the tool is then adjusted to ambient.

Description

TOOL FOR REPLACEABLE PRESSURE AND TEMPERATURE SENSOR
Field of the Invention
The invention relates to a tool assembly for a replaceable subsea sensor of the type communicating with pressure in a well or other equipment or installation.
More particularly the invention relates to a tool assembly for remotely deploying and/or retrieving a sensor of the abovementioned type, such as a pressure and temperature sensor, for use at a remote subsea location, e.g. on a subsea wellhead, christmas tree, manifold or flowline (collectively described as Seabed Installed Production Equipment or SIPE) for oil and/or gas production.
Background to the Invention
In the production of oil and/or gas from subsea wells in deep water, it may be necessary to monitor properties such as the pressure and temperature of fluids emerging from the well. Combined pressure and temperature sensors have been developed for this purpose. The temperature sensor must be positioned at the required measurement point in the fluid, and the associated pressure sensor requires a relatively large diameter entry to the well bore. Conveniently, a sensor is installed on a subsea wellhead, christmas tree, manifold or flowline assembly at or adjacent to the well bore and/or other passageway for process fluids (oil and/or gas).
If a sensor should fail, it may be necessary to shut down production, release the SIPE and bring the SIPE to the surface, and to replace the sensor. That done, it is then necessary to re-install the SIPE on the seabed and to re-start production. This is costly, and necessitates the loss of significant volumes of production. As a less expensive alternative, a sensor can be arranged on the wellhead for replacement in situ, in shallow water, this can be effected by divers but there are substantial safety considerations due to the connection to the well bore pressure. Also, in deeper water divers are not able to operate and it becomes desirable to be able to use a Remotely Operated Vehicle (ROV).
However the configuration of some currently used SIPE and ROVs makes it difficult for a ROV to approach closely to the SIPE, because of pipe fittings attached to the SIPE. Thus it is desirable for a sensor on a wellhead to be deployable or replaceable by a ROV which cannot itself approach closely to the SIPE.
Summary of Invention
The present invention is directed towards providing a tool assembly and method of operation enabling a sensor to be deployed and/or removed by a ROV that is constrained to a location outside the spatial envelope of the pipe fittings of a SIPE, or in otherwords outside the tree envelope. The tool may also be used by other installation techniques in suitable locations, e.g. by divers.
The invention provides a tool having a connection to engage an attachment on an SIPE containing a sensor, a chamber within the tool to receive the sensor, a connection within the chamber to engage the sensor, and means to cap and seal an aperture in the attachment through which the sensor is to be withdrawn, in which there is means to withdraw the sensor from the attachment into the chamber, and means to isolate the chamber from pressure in a bore of the SIPE, whereby the tool can be disengaged from the attachment when the sensor is in the chamber without compromise to the pressure containment of the bore.
It is preferred that the attachment has a ball valve seal, and the tool has means to operate that ball valve seal. It is further preferred that the ball valve is operable by a pair of hydraulic cylinders mounted on the exterior of the tool.
It is also preferred that there is a ram operable with the chamber which is capable of engaging the sensor when the sensor is within the attachment, of disengaging the sensor from the attachment, and of withdrawing the sensor into the chamber.
Preferably there is a flushing means to clean the tool after the tool has withdrawn the sensor into the chamber, and before the tool is disconnected from the attachment.
Advantageously the chamber has a test port with bleed and or pressure test equipment.
The invention also provides a tool as claimed as described above in combination with an attachment to a SIPE bore, and having a ball valve for sealing that bore.
Description of the Drawings
A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings, in which:-
Figure 1 shows a combined pressure/temperature sensor attached to a well bore;
Figure 2 shows measurement leads attached to that sensor;
Figure 3 is a sectional view of a tool engaged over the sensor location;
Figure 4 is a sectional view similar to Figure 3 showing the tool engaging the sensor;
Figure 5 is a sectional view similar to Figure 4 showing the sensor within the tool, and Figure 6 is a side view showing a mechanism for operating an isolation valve on the attachment.
The requirement of a pressure and temperature sensor for proximity to the well bore and for a large diameter entry to the well bore effectively means that the sensor must be installed in such a way that it can be withdrawn from the bore and isolated prior to removal, without any breach of the primary pressure containment.
An example of a replaceable pressure and temperature sensor is shown in Figures 1 and
2. An assembly 1 is attached to the tree bore 2 by a flange 3, which may be an API flange. The assembly has a sealing interface into which sensor 4 can be screwed by screw fitting 5, sealing being by way of any suitable seal such as a metal C-ring face seal with an elastomeric barrel seal as back up. External to the sealing interface is a through bore valve 6, for example a 1.5" (370mm) quarter turn ball valve. This ball valve is in the open position when the sensor is in situ, passing through the valve as shown. The valve is fitted with a paddle arrangement (see Figure 6) allowing hydraulic cylinders on the tool to open and close the ball valve. External to the ball valve is the female side of a connection 7 such as a Εowen' quick union. In its installed condition, the sensor is preferably screwed into place, passing through the ball valve although other arrangements such as a push fit are possible. A protection cap 8 is installed onto the exterior of connector 7 to protect the threads and sealing face. Electrical connection to the sensor is by any suitable underwater electronic connector, such as a Tronic connector 9 that passes through the centre of the protection cap into a receptacle at the rear of the sensor.
To change out the sensor, a special tool in accordance with the invention is required. The tool is shown in Figures 3 to 6. This tool contains mechanisms to seal itself over the sensor location on to the outside of connector 7 (after removal the cap 8) unscrew and withdraw the sensor, and carry out flush and pressure test activities. The tool is able to be carried by a ROV. Reverse of these procedures enables deployment of a new sensor.
In more detail, referring to Figures 3 to 6, first the electrical connection and protection cap are removed from the sensor. The tool is stabbed onto the internal interface of the connector 7 by the ROV; a hydraulic motor 20 on the outside of the tool is then used to spin on a locking collar 10 (Fig. 3). A hydraulic intensifier on the ROV then provides fluid via port 20 to pressure test the connection. This pressure will be greater than the maximum bore pressure, and after the test the pressure is bled down to equalize the pressure with the tree bore. A main hydraulic cylinder 12 is then extended, pushing a ram 13 that carries a connector 14 into engagement with the rear of the sensor. The engagement may be a hex, for example, if the sensor requires unscrewing. Operating a hydraulic motor 15 on the ram provides rotation to unscrew the sensor. The sensor is then withdrawn back into a chamber 16 within the body of the tool and a hydraulic cylinder 17 on the outside of the tool closes the ball valve (Fig 6). This seal is then pressure tested then the pressure inside the tool body bled down to ambient, and the cavity flushed to clean the sensor. The quick union can then be unlocked and the tool withdrawn. The ROV would then return to the surface for the sensor to be replaced. The operation is reversed to install a new sensor.
The main sensor to well bore seal would generally be a relatively small diameter metal C-ring, although other suitable seals may be used. This would provide the primary seal against well bore pressure, but might not seal in the reverse direction sufficiently for very deep water. A back up barrel seal on the body of the sensor, for example either elastomeric or PEEK, can be used to form the environmental seal, as well as backing up the primary seal.
The tooling would be deployed by and controlled from a Tool Deployment System (TDS) as currently used on ROVs for other purposes. The length of the tool means that it should be possible to reach the sensor from outside the tree envelope, but it would require an unobstructed passage to allow the tool access.
A retrieval procedure will now be described from the point of view of a ROV operator.
In order to replace a combined pressure and temperature sensor, the ROV needs to be equipped with a TDS, fitted with the tooling shown in Figures 3 to 6, together with Test and Flushing Unit. This latter can be a ROV mounted unit with fluid storage capacity, able to produce sufficient flow for flushing the sensor pipework prior to removal and after reinstallation; and to produce high pressure fluid for pressure tests of seals and valves. The unit should also have capacity to store liquid flushed out from the sensor for later disposal. The Test and Flushing unit is attached to the tooling via hydraulic hoses.
To change out a failed sensor, the following sequence of operations would be carried ou -
A ROV fitted with the TDS and tooling is deployed to the equipment with the failed sensor. The ROV, using its manipulator, disconnects and parks the electrical connector from the sensor. The cap protecting the threads and sealing surface is removed.
The ROV then docks onto the tree panel with the TDS and deploys the tool onto the sensor interface (connector 7). The make up function of the tool is then operated, locking the tool to the interface by way of a quick union. The pressure test is employed to ensure the union is properly sealed and the 'extend" function on the tool used to drive the socket of the connector tool 14 onto the rear of the sensor. The sensor is unscrewed, and retracted back into the body of the tool.
The ball valve on the sensor is closed and pressure tested, followed (optionally) by a second ball valve (not shown but further from the bore). The body of the tool is then flushed clean. The make up function on the tool is reversed, the tool is retracted and the TDS is unlocked. The ROV is then recovered to the surface.
The failed sensor is removed from the tool, and a replacement sensor is fitted.
The ROV is redeployed and docks back onto the tree panel with the TDS, and deploys the tool onto the sensor interface. The make up function of the tool is then operated, locking the tool to the interface by way of the quick union. The pressure test function is employed to ensure the union is properly sealed.
The ball valve (or valves if there are two) is/are then opened, the sensor extended forward and screwed into place. The sensor is pressure tested and monitored. The tool body is flushed, and the tool disconnected and removed. The ROV then replaces the protective cap and re-installs the electrical connection. This completes the sensor change-out.
The invention has been described with particular reference to uses in the offshore oil and gas industry with applicability to Seabed Installed Production Equipment (SIPE). However, wider applicability of the invention is possible. It may be required to determine the characteristics of fluids - static or dynamic - contained in sunken ships or other submerged vessels. For instance, it may be required to measure the pressure or temperature crude oil cargos trapped within sunken tankers. Thus references to SIPE or a subsea installation should be taken to include any subsea equipment for which remote monitoring is necessary.

Claims

1. A tool assembly for remotely deploying and/or retrieving a sensor (1) that engages with an attachment on (3), a subsea installation, the tool comprising means for sealing (10) over the sensor location, a chamber (16) within the tool for receiving the sensor,
a reciprocable member (13, 14) for engaging with the sensor and moving the sensor into or out of engagement with the attachment, and
pressure adjustment means (20) for changing the pressure within the chamber.
2. A tool assembly according to claim 1 in which when the tool is sealed over the sensor location and prior to deployment or retrieval of the sensor the pressure adjustment means is operable to match the in situ pressure experienced by the sensor and to match ambient pressure prior to connection or disconnection of the tool sealing over the sensor location.
3. A tool assembly according to claim 1 or claim 2 in which the tool assembly includes an actuator (17) for operating an isolation valve on the attachment when the tool is sealed over the sensor location and the sensor is within the chamber.
4. A tool assembly according to claim 3 in which the isolation valve comprises a ball valve (6).
5. A tool assembly according to claim 4 in which the ball valve is operable by a pair of hydraulic cylinders (17) mounted externally of the tool chamber.
6. A tool assembly according to any preceding claim in which the reciprocable member comprises means for rotating (14) the sensor to engage or disengage the sensor with a screw thread on the attachment.
8. A tool assembly according to any preceding claim in which the chamber is provided with means for flushing (20) so as to clean the tool while it is within the chamber.
9. A tool assembly according to any preceding claim in combination with an attachment to a SIPE bore having an isolation valve.
10. A method of installing or removing a sensor that communicates with well pressure from a subsea installation, the method comprising providing a tool with a chamber for receiving the sensor and engaging an end of the chamber over a passage communicating with well pressure and having an isolation valve, adjusting pressure within the chamber to well pressure, opening the isolation valve and inserting or withdrawing the sensor and isolating the well pressure from the chamber.
PCT/GB2002/003041 2001-07-02 2002-07-02 Tool for replaceable pressure and temperature sensor WO2003016673A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR0205712-3A BR0205712A (en) 2001-07-02 2002-07-02 Tool set, and method of installing and removing a sensor that communicates with well pressure from an underwater installation
GB0327783A GB2393991A (en) 2001-07-02 2002-07-02 Tool for replaceable pressure and temperature sensor
NO20030950A NO20030950D0 (en) 2001-07-02 2003-02-28 Tools for interchangeable pressure and temperature tools

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0116155.3A GB0116155D0 (en) 2001-07-02 2001-07-02 Tool for replaceable pressure & temp sensor
GB0116155.3 2001-07-02

Publications (1)

Publication Number Publication Date
WO2003016673A1 true WO2003016673A1 (en) 2003-02-27

Family

ID=9917785

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/003041 WO2003016673A1 (en) 2001-07-02 2002-07-02 Tool for replaceable pressure and temperature sensor

Country Status (4)

Country Link
BR (1) BR0205712A (en)
GB (2) GB0116155D0 (en)
NO (1) NO20030950D0 (en)
WO (1) WO2003016673A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052764A1 (en) * 2010-11-30 2012-05-31 Mtu Onsite Energy Gmbh Device for removal of solid material sample of fuel cell hot gas from hot gas filter container, has tube comprising closure device cooperating with sampling lance for closing discharge side of tube, when sampling lance is immersed in tube
WO2013056859A1 (en) 2011-10-21 2013-04-25 Petroleum Technology Company As Methods for installing and retrieving a well monitoring apparatus
NO333416B2 (en) * 2008-03-03 2013-06-03 Petroleum Technology Co As Method and system for installing a process sensor on a wellhead
WO2016081053A1 (en) * 2014-11-17 2016-05-26 General Electric Company Constant volume temperature to pressure transducer for use with retrievable pressure sensor assemblies
US9400223B2 (en) 2011-09-08 2016-07-26 General Electric Company Retrievable pressure sensor
NO20160443A1 (en) * 2016-03-16 2017-09-18 Ind Controls As Apparatus and method for monitoring conditions in a fluid reservoir
NO20170297A1 (en) * 2017-03-01 2018-08-20 Petroleum Technology Co As Wellhead Assembly and method
US10502021B2 (en) 2016-12-28 2019-12-10 Cameron International Corporation Valve removal plug assembly
US11352882B2 (en) 2018-03-12 2022-06-07 Cameron International Corporation Plug assembly for a mineral extraction system

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US2870629A (en) * 1956-01-18 1959-01-27 Willis Oil Tool Co Apparatus for moving an element into and from a vessel containing fluid under pressure
US4215458A (en) * 1979-02-09 1980-08-05 Lancaster Robert D Extractor tool
US4537071A (en) * 1983-11-23 1985-08-27 Rohrback Corporation Retriever tool
US5161294A (en) * 1990-03-19 1992-11-10 Terje Haland Tool device for use in replacing an instrument disposed in a normally inaccesible or dangerous environment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870629A (en) * 1956-01-18 1959-01-27 Willis Oil Tool Co Apparatus for moving an element into and from a vessel containing fluid under pressure
US4215458A (en) * 1979-02-09 1980-08-05 Lancaster Robert D Extractor tool
US4537071A (en) * 1983-11-23 1985-08-27 Rohrback Corporation Retriever tool
US5161294A (en) * 1990-03-19 1992-11-10 Terje Haland Tool device for use in replacing an instrument disposed in a normally inaccesible or dangerous environment

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO333416B2 (en) * 2008-03-03 2013-06-03 Petroleum Technology Co As Method and system for installing a process sensor on a wellhead
DE102010052764A1 (en) * 2010-11-30 2012-05-31 Mtu Onsite Energy Gmbh Device for removal of solid material sample of fuel cell hot gas from hot gas filter container, has tube comprising closure device cooperating with sampling lance for closing discharge side of tube, when sampling lance is immersed in tube
US9400223B2 (en) 2011-09-08 2016-07-26 General Electric Company Retrievable pressure sensor
WO2013056859A1 (en) 2011-10-21 2013-04-25 Petroleum Technology Company As Methods for installing and retrieving a well monitoring apparatus
US9217322B2 (en) 2011-10-21 2015-12-22 Petroleum Technology Company As Methods for installing and retrieving a well monitoring apparatus
US9797237B2 (en) 2014-11-17 2017-10-24 General Electric Company Constant volume temperature to pressure transducer for use with retrievable pressure sensor assemblies
WO2016081053A1 (en) * 2014-11-17 2016-05-26 General Electric Company Constant volume temperature to pressure transducer for use with retrievable pressure sensor assemblies
NO20160443A1 (en) * 2016-03-16 2017-09-18 Ind Controls As Apparatus and method for monitoring conditions in a fluid reservoir
WO2017160164A1 (en) 2016-03-16 2017-09-21 Industrial Controls As Apparatus and method for monitoring conditions in a fluid reservoir
NO341482B1 (en) * 2016-03-16 2017-11-27 Ind Controls As Apparatus and method for monitoring conditions in a fluid reservoir
US10866339B2 (en) 2016-03-16 2020-12-15 Industrial Controls As Apparatus and method for monitoring conditions in a fluid reservior
US10502021B2 (en) 2016-12-28 2019-12-10 Cameron International Corporation Valve removal plug assembly
NO20170297A1 (en) * 2017-03-01 2018-08-20 Petroleum Technology Co As Wellhead Assembly and method
NO342874B1 (en) * 2017-03-01 2018-08-20 Petroleum Technology Co As Wellhead Assembly and method
US11236571B2 (en) 2017-03-01 2022-02-01 Petroleum Technology Company As Wellhead assembly and method
US11352882B2 (en) 2018-03-12 2022-06-07 Cameron International Corporation Plug assembly for a mineral extraction system
US11680483B2 (en) 2018-03-12 2023-06-20 Cameron International Corporation Plug assembly for positioning within a passageway of a wellhead component

Also Published As

Publication number Publication date
NO20030950D0 (en) 2003-02-28
BR0205712A (en) 2003-07-15
GB0116155D0 (en) 2001-08-22
GB2393991A (en) 2004-04-14
GB0327783D0 (en) 2003-12-31

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