US20160024868A1 - Completion with subsea feedthrough - Google Patents
Completion with subsea feedthrough Download PDFInfo
- Publication number
- US20160024868A1 US20160024868A1 US14/799,956 US201514799956A US2016024868A1 US 20160024868 A1 US20160024868 A1 US 20160024868A1 US 201514799956 A US201514799956 A US 201514799956A US 2016024868 A1 US2016024868 A1 US 2016024868A1
- Authority
- US
- United States
- Prior art keywords
- electrical coupling
- conductive line
- well
- subsea
- power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
Links
Images
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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
- E21B33/0385—Connectors used on well heads, e.g. for connecting blow-out preventer and riser electrical connectors
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/028—Electrical or electro-magnetic connections
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
- E21B33/0355—Control systems, e.g. hydraulic, pneumatic, electric, acoustic, for submerged well heads
Definitions
- Embodiments of the invention relate to methods and systems for completing a subsea well, which may be at a water depth of at least 300 meters and have a wellhead to contain potential well pressures of at least 137,000 kilopascals (kPa) and operate in external sea pressures above 30,000 kPa, for example.
- An electrical coupling functions under these conditions and existing standards to deliver power and communication across the wellhead to completion equipment in the well.
- the electrical coupling may couple with a single conductive line through which power and communications are multiplexed.
- Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.
- FIG. 1 illustrates a well 100 drilled in a formation below sea and having a wellhead 102 disposed on a seabed.
- the wellhead 102 includes an electrical coupling 106 providing an electricity carrying pathway penetrating across the wellhead 102 .
- the electrical coupling couples a control line, which may include a single conductive line 103 , disposed in the well 100 with an umbilical line 104 underwater.
- the umbilical line 104 ties back to other subsea, floating and/or land based equipment providing electricity and used for monitoring and control of the well 100 .
- the electrical coupling 106 includes an inductive coupling.
- the inductive coupling transmits electricity across the wellhead 102 without relying on use of feedthrough electrical contacts to penetrate pressure containing components of the wellhead 102 .
- the electrical coupling 106 thus may operate without a physical penetration through the wellhead 102 .
- the electrical system may comply with Intelligent Well Interface Standardization (IWIS).
- IWIS Intelligent Well Interface Standardization
- the electrical coupling 106 may include a subsea interface in compliance with IWIS for use of an IWIS based module 105 , such as a subsea electronics module (SEM) or a subsea control module (SCM). Power supply through the electrical coupling 106 may also not exceed 100 watts or 500 watts in some embodiments.
- the conductive line 103 extends down the well 100 in an annulus surrounding production tubing 108 .
- Using the conductive line 103 for both power and communication to more than one tool also limits feedthroughs across packers within the annulus in the well 100 .
- a single feedthrough for each of the packers instead of multiple feedthroughs for each may facilitate achieving desired pressure ratings for the packers similar to the wellhead 102 .
- the well 100 includes a first lateral bore 110 and a second lateral bore 111 through which hydrocarbon production fluids enter from a surrounding reservoir.
- the lateral bores 110 , 111 include completion equipment, which may be any tools, such as first flow controlling tool 112 and second flow controlling tool 113 , requiring electrical power for mechanical actuation or other physical deployment.
- the flow controlling tools 112 , 113 include valves (e.g., a ball valve, a flapper valve, a sliding sleeve valve or an annular control valve), chokes (e.g., a tubing flow choke or an annular choke), packers and a disappearing plug.
- One or more instruments, such as a sensor 116 , in the well 100 may also couple to the conductive line 103 .
- the sensor 116 with lower power demand than the tools 112 , 113 may operate straight from electrical transmission through the conductive line 103 .
- the sensor 116 turns off and is only turned on when desired to make a measurement so that the sensor 116 is not using continuous power all the time.
- the sensor 116 conveys data about a parameter, such as density, pressure, temperature, flow and/or water cut, back through the conductive line 103 to the equipment disposed outside of the well 100 .
- actuation of the tools 112 , 113 depends on the data from the sensor 116 and may be automated to operate in response to the data.
- a method of completing the well 100 includes creating the electrical coupling 106 across the wellhead 102 subsea. The method further includes coupling to the electrical coupling 106 the single conductive line 103 through which power and communications are multiplexed. Actuating the flow controlling tools 112 , 113 disposed in the well 100 occurs based on the communications sent through the conductive line 103 with the tools 112 , 113 powered by the energy storage devices 114 , 115 charged by the power from the conductive line 103 .
- the tools 112 , 113 , the sensor 116 and all other completion equipment in the well 100 may couple to the single conductive line 103 for communicating with equipment outside the well 100 and, with the energy storage devices 114 , 115 , receiving power for actuation. Therefore, the well 100 may utilize the single conductive line 103 alone and have no other hydraulic, electric or optical control lines. However, some embodiments may use additional control lines or multiple conductive lines, such as for backup purposes, with aspects of the invention to still achieve benefits described herein.
Abstract
Methods and systems relate to completing a subsea well having a wellhead with required pressure integrity. An electrical coupling delivers power and communication across the wellhead to completion equipment in the well. The electrical coupling may couple with a single conductive line through which power and communications are multiplexed. Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.
Description
- This application is a non-provisional application which claims benefit under 35 USC §119(e) to U.S. Provisional Application Ser. No. 62/028,670 filed Jul. 24, 2014, entitled “COMPLETION WITH SUBSEA FEEDTHROUGH,” which is incorporated herein in its entirety.
- None.
- Embodiments of the invention relate generally to completing a subsea well with powered devices.
- Deepwater oil and gas developments require complex wells including advanced completion capabilities, such as monitoring and remote control. Multilaterals, inaccessibility of a subsea wellhead by people and extreme pressure conditions complicate management and monitoring of the wells. Multiple separate control lines for actuation and monitoring used in other applications may not meet pressure ratings for deepwater applications or interface with current deepwater electrical standards.
- Intelligent Well Interface Standardization (IWIS) provides a standard to facilitate deployment of subsea well monitoring systems. Access to well sensors with IWIS utilizes power and data multiplexed on a single conductor. Limited wattage, such as less than 100 watts, set by IWIS may not meet peak actuation requirements and is also a criteria in cable size, which if too large does not fit the standards and otherwise presents further problems with achieving desired feedthrough pressure ratings.
- Traditional hydraulic systems for the actuation and monitoring also present several problems. For example, hydraulic systems lack ability to deliver pressure to longer step-out wells, which may require communication across 125 kilometers or more. Electric systems can increase current or voltage to get more power to compensate for losses over these distances.
- Therefore, a need exists for systems and methods to complete a subsea well with powered devices.
- For one embodiment, a subsea completion system for a well includes an electrical coupling across a wellhead located subsea. A single conductive line couples to the electrical coupling with power and communications multiplexed and passing through the line. Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.
- In one embodiment, a method of completing a well includes creating an electrical coupling across a wellhead located subsea. The method further includes coupling to the electrical coupling a single conductive line through which power and communications are multiplexed. Based on the communications sent through the conductive line, multiple flow controlling tools disposed in the well actuate and are powered by at least one energy storage device charged by the power from the conductive line.
- A more complete understanding of the present invention and benefits thereof may be acquired by referring to the following description taken in conjunction with the accompanying drawings.
-
FIG. 1 is a schematic view a subsea well with completions, according to embodiments of the invention. - Turning now to the detailed description of the preferred arrangement or arrangements of the present invention, it should be understood that the inventive features and concepts may be manifested in other arrangements and that the scope of the invention is not limited to the embodiments described or illustrated. The scope of the invention is intended only to be limited by the scope of the claims that follow.
- Embodiments of the invention relate to methods and systems for completing a subsea well, which may be at a water depth of at least 300 meters and have a wellhead to contain potential well pressures of at least 137,000 kilopascals (kPa) and operate in external sea pressures above 30,000 kPa, for example. An electrical coupling functions under these conditions and existing standards to deliver power and communication across the wellhead to completion equipment in the well. The electrical coupling may couple with a single conductive line through which power and communications are multiplexed. Multiple flow controlling tools disposed in the well couple to the conductive line with at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.
-
FIG. 1 illustrates a well 100 drilled in a formation below sea and having awellhead 102 disposed on a seabed. Thewellhead 102 includes anelectrical coupling 106 providing an electricity carrying pathway penetrating across thewellhead 102. The electrical coupling couples a control line, which may include a singleconductive line 103, disposed in thewell 100 with anumbilical line 104 underwater. Theumbilical line 104 ties back to other subsea, floating and/or land based equipment providing electricity and used for monitoring and control of thewell 100. - In some embodiments, the
electrical coupling 106 includes an inductive coupling. The inductive coupling transmits electricity across thewellhead 102 without relying on use of feedthrough electrical contacts to penetrate pressure containing components of thewellhead 102. Theelectrical coupling 106 thus may operate without a physical penetration through thewellhead 102. - For some embodiments, the
electrical coupling 106 includes a penetrating feedthrough and facilitates maintaining pressure integrity of thewellhead 102 due to limited number of such penetrations. For example, theelectrical coupling 106 may form a single and only electricity carrying pathway penetrating across thewellhead 102 for control and communication with all completion equipment in thewell 100. While the inductive coupling utilizes alternating current, alternating or direct current may pass through theelectrical coupling 106 if electrical contact based. Power converters may change electrical energy between direct and alternating as desired at any point along an electrical system described herein. - The electrical system may comply with Intelligent Well Interface Standardization (IWIS). For example, the
electrical coupling 106 may include a subsea interface in compliance with IWIS for use of an IWIS basedmodule 105, such as a subsea electronics module (SEM) or a subsea control module (SCM). Power supply through theelectrical coupling 106 may also not exceed 100 watts or 500 watts in some embodiments. - From the
wellhead 102, theconductive line 103 extends down thewell 100 in an annulus surroundingproduction tubing 108. Using theconductive line 103 for both power and communication to more than one tool also limits feedthroughs across packers within the annulus in thewell 100. A single feedthrough for each of the packers instead of multiple feedthroughs for each may facilitate achieving desired pressure ratings for the packers similar to thewellhead 102. - By way of example, the
well 100 includes a firstlateral bore 110 and a secondlateral bore 111 through which hydrocarbon production fluids enter from a surrounding reservoir. Thelateral bores flow controlling tool 112 and secondflow controlling tool 113, requiring electrical power for mechanical actuation or other physical deployment. Examples of theflow controlling tools - The first
flow controlling tool 112 adjusts inflow into theproduction tubing 108 in a main bore from the firstlateral bore 110. A firstenergy storage device 114, such as a battery or accumulator, couples to theconductive line 103 and is charged for powering the firstflow controlling tool 112. Theconductive line 103 also provides command signals for controlling actuation of the firstflow controlling tool 112 since the power and communications are multiplexed on theconductive line 103. - Since both the
tools conductive line 103, a separate command signal sent through theconductive line 103 functions the secondflow controlling tool 113 to adjust inflow into theproduction tubing 108 in the main bore from thesecond lateral 111. The secondflow controlling tool 113 may share power from the firstenergy storage device 114 or utilize a secondenergy storage device 115, which is also coupled to theconductive line 103 and may be disposed proximate the secondflow controlling tool 113. Current and voltage limits able to be passed through theconductive line 103 may lack ability to operate thetools energy storage devices - One or more instruments, such as a
sensor 116, in the well 100 may also couple to theconductive line 103. Thesensor 116 with lower power demand than thetools conductive line 103. For some embodiments, thesensor 116 turns off and is only turned on when desired to make a measurement so that thesensor 116 is not using continuous power all the time. Thesensor 116 conveys data about a parameter, such as density, pressure, temperature, flow and/or water cut, back through theconductive line 103 to the equipment disposed outside of thewell 100. In some embodiments, actuation of thetools sensor 116 and may be automated to operate in response to the data. - In some embodiments, the
conductive line 103 couples to the secondflow controlling tool 113 and the secondenergy storage device 115 through a lateralinductive coupling 126 for the secondlateral bore 111. Similar to theelectrical coupling 106 at thewellhead 102, a junction between the main bore and the second lateral bore 111 may benefit from the lateralinductive coupling 126 maintaining pressure integrity without use of physical electrical contacts. The lateralinductive coupling 126 establishes power and communication with the secondflow controlling tool 113 and the secondenergy storage device 115 disposed in the second lateral bore 111 without a physical penetration through the junction. The lateralinductive coupling 126 may form an integral part of tubing at the junction. - Based on the foregoing, a method of completing the well 100 includes creating the
electrical coupling 106 across thewellhead 102 subsea. The method further includes coupling to theelectrical coupling 106 the singleconductive line 103 through which power and communications are multiplexed. Actuating theflow controlling tools conductive line 103 with thetools energy storage devices conductive line 103. - The
tools sensor 116 and all other completion equipment in the well 100 may couple to the singleconductive line 103 for communicating with equipment outside the well 100 and, with theenergy storage devices conductive line 103 alone and have no other hydraulic, electric or optical control lines. However, some embodiments may use additional control lines or multiple conductive lines, such as for backup purposes, with aspects of the invention to still achieve benefits described herein. - In closing, it should be noted that the discussion of any reference is not an admission that it is prior art to the present invention, especially any reference that may have a publication date after the priority date of this application. At the same time, each and every claim below is hereby incorporated into this detailed description or specification as additional embodiments of the present invention.
- Although the systems and processes described herein have been described in detail, it should be understood that various changes, substitutions, and alterations can be made without departing from the spirit and scope of the invention as defined by the following claims. Those skilled in the art may be able to study the preferred embodiments and identify other ways to practice the invention that are not exactly as described herein. It is the intent of the inventors that variations and equivalents of the invention are within the scope of the claims while the description, abstract and drawings are not to be used to limit the scope of the invention. The invention is specifically intended to be as broad as the claims below and their equivalents.
Claims (20)
1. A subsea completion system for a well, comprising:
an electrical coupling across a wellhead located subsea;
a single conductive line coupled to the electrical coupling and through which power and communications are multiplexed;
multiple flow controlling tools disposed in the well coupled to the conductive line; and
at least one energy storage device charged by the power from the conductive line for powering actuation of the tools.
2. The subsea completion system according to claim 1 , wherein the energy storage device includes a battery.
3. The subsea completion system according to claim 1 , wherein the electrical coupling includes an inductive coupling.
4. The subsea completion system according to claim 1 , wherein the electrical coupling is limited to less than 100 watt power supply.
5. The subsea completion system according to claim 1 , wherein the electrical coupling forms a single and only electricity carrying pathway penetrating across the wellhead for control of all completion equipment in the well.
6. The subsea completion system according to claim 1 , wherein the electrical coupling includes a subsea interface compliant with Intelligent Well Interface Standardization (IWIS).
7. The subsea completion system according to claim 1 , wherein the conductive line is coupled in the well to an inductive coupling for a lateral to power one of the tools in the lateral.
8. The subsea completion system according to claim 1 , wherein the electrical coupling and a lateral connection include inductive couplings.
9. The subsea completion system according to claim 1 , further comprising at least one sensor coupled to the conductive line for transfer of data through the wellhead.
10. The subsea completion system according to claim 1 , wherein the tools include at least one of a valve, a choke, a packer and a disappearing plug.
11. A method of completing a well, comprising:
creating an electrical coupling across a wellhead located subsea;
coupling to the electrical coupling a single conductive line through which power and communications are multiplexed; and
actuating based on the communications sent through the conductive line multiple flow controlling tools disposed in the well and powered by at least one energy storage device charged by the power from the conductive line.
12. The method according to claim 11 , wherein the energy storage device includes a battery.
13. The method according to claim 11 , wherein the electrical coupling includes an inductive coupling.
14. The method according to claim 11 , wherein power supply through the electrical coupling is limited to less than 100 watts.
15. The method according to claim 11 , wherein the electrical coupling forms a single and only electricity carrying pathway penetrating across the wellhead for control of all completion equipment in the well.
16. The method according to claim 11 , wherein the electrical coupling includes a subsea interface compliant with Intelligent Well Interface Standardization (IWIS).
17. The method according to claim 11 , wherein the conductive line is coupled in the well to an inductive coupling for a lateral to power one of the tools in the lateral.
18. The method according to claim 11 , wherein the electrical coupling and a lateral connection include inductive couplings.
19. The method according to claim 11 , wherein the tools include at least one of a valve, a choke, a packer and a disappearing plug.
20. The method according to claim 11 , further comprising at least one sensor coupled to the conductive line for transfer of data through the wellhead.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/799,956 US20160024868A1 (en) | 2014-07-24 | 2015-07-15 | Completion with subsea feedthrough |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462028670P | 2014-07-24 | 2014-07-24 | |
US14/799,956 US20160024868A1 (en) | 2014-07-24 | 2015-07-15 | Completion with subsea feedthrough |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160024868A1 true US20160024868A1 (en) | 2016-01-28 |
Family
ID=55166326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/799,956 Abandoned US20160024868A1 (en) | 2014-07-24 | 2015-07-15 | Completion with subsea feedthrough |
Country Status (1)
Country | Link |
---|---|
US (1) | US20160024868A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106321063A (en) * | 2016-08-05 | 2017-01-11 | 江苏华尔威科技集团有限公司 | Crude oil single well metering and measuring system |
US20170215142A1 (en) * | 2016-01-27 | 2017-07-27 | Samsung Electronics Co., Ltd. | Method and apparatus for reducing signaling overhead and reducing battery of terminal |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646083A (en) * | 1984-04-26 | 1987-02-24 | Hydril Company | Borehole measurement and telemetry system |
US4806928A (en) * | 1987-07-16 | 1989-02-21 | Schlumberger Technology Corporation | Apparatus for electromagnetically coupling power and data signals between well bore apparatus and the surface |
US4852648A (en) * | 1987-12-04 | 1989-08-01 | Ava International Corporation | Well installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellhead |
US5706892A (en) * | 1995-02-09 | 1998-01-13 | Baker Hughes Incorporated | Downhole tools for production well control |
US5941307A (en) * | 1995-02-09 | 1999-08-24 | Baker Hughes Incorporated | Production well telemetry system and method |
US6360820B1 (en) * | 2000-06-16 | 2002-03-26 | Schlumberger Technology Corporation | Method and apparatus for communicating with downhole devices in a wellbore |
US6640900B2 (en) * | 2001-07-12 | 2003-11-04 | Sensor Highway Limited | Method and apparatus to monitor, control and log subsea oil and gas wells |
US20090066535A1 (en) * | 2006-03-30 | 2009-03-12 | Schlumberger Technology Corporation | Aligning inductive couplers in a well |
US7712524B2 (en) * | 2006-03-30 | 2010-05-11 | Schlumberger Technology Corporation | Measuring a characteristic of a well proximate a region to be gravel packed |
US20120067567A1 (en) * | 2010-09-22 | 2012-03-22 | Schlumberger Technology Corporation | Downhole completion system with retrievable power unit |
US8235127B2 (en) * | 2006-03-30 | 2012-08-07 | Schlumberger Technology Corporation | Communicating electrical energy with an electrical device in a well |
US20130008661A1 (en) * | 2010-03-15 | 2013-01-10 | Hallundaek Joergen | Subsea well intervention module |
US20130088360A1 (en) * | 2010-02-10 | 2013-04-11 | Daniel McStay | Subsea optical switch |
US20160069178A1 (en) * | 2012-07-24 | 2016-03-10 | John J. Mulholland | Wireless downhole feedthrough system |
-
2015
- 2015-07-15 US US14/799,956 patent/US20160024868A1/en not_active Abandoned
Patent Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646083A (en) * | 1984-04-26 | 1987-02-24 | Hydril Company | Borehole measurement and telemetry system |
US4806928A (en) * | 1987-07-16 | 1989-02-21 | Schlumberger Technology Corporation | Apparatus for electromagnetically coupling power and data signals between well bore apparatus and the surface |
US4852648A (en) * | 1987-12-04 | 1989-08-01 | Ava International Corporation | Well installation in which electrical current is supplied for a source at the wellhead to an electrically responsive device located a substantial distance below the wellhead |
US5706892A (en) * | 1995-02-09 | 1998-01-13 | Baker Hughes Incorporated | Downhole tools for production well control |
US5941307A (en) * | 1995-02-09 | 1999-08-24 | Baker Hughes Incorporated | Production well telemetry system and method |
US6360820B1 (en) * | 2000-06-16 | 2002-03-26 | Schlumberger Technology Corporation | Method and apparatus for communicating with downhole devices in a wellbore |
US6640900B2 (en) * | 2001-07-12 | 2003-11-04 | Sensor Highway Limited | Method and apparatus to monitor, control and log subsea oil and gas wells |
US20090066535A1 (en) * | 2006-03-30 | 2009-03-12 | Schlumberger Technology Corporation | Aligning inductive couplers in a well |
US7712524B2 (en) * | 2006-03-30 | 2010-05-11 | Schlumberger Technology Corporation | Measuring a characteristic of a well proximate a region to be gravel packed |
US8235127B2 (en) * | 2006-03-30 | 2012-08-07 | Schlumberger Technology Corporation | Communicating electrical energy with an electrical device in a well |
US20130088360A1 (en) * | 2010-02-10 | 2013-04-11 | Daniel McStay | Subsea optical switch |
US20130008661A1 (en) * | 2010-03-15 | 2013-01-10 | Hallundaek Joergen | Subsea well intervention module |
US20120067567A1 (en) * | 2010-09-22 | 2012-03-22 | Schlumberger Technology Corporation | Downhole completion system with retrievable power unit |
US20160069178A1 (en) * | 2012-07-24 | 2016-03-10 | John J. Mulholland | Wireless downhole feedthrough system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20170215142A1 (en) * | 2016-01-27 | 2017-07-27 | Samsung Electronics Co., Ltd. | Method and apparatus for reducing signaling overhead and reducing battery of terminal |
CN106321063A (en) * | 2016-08-05 | 2017-01-11 | 江苏华尔威科技集团有限公司 | Crude oil single well metering and measuring system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8511389B2 (en) | System and method for inductive signal and power transfer from ROV to in riser tools | |
US11795786B2 (en) | Downhole energy harvesting | |
US20150240585A1 (en) | System for Controlling In-Riser Functions from Out-of-Riser Control System | |
US20230019444A1 (en) | Downhole energy harvesting | |
AU2016434681B2 (en) | Downhole communication | |
US11199075B2 (en) | Downhole energy harvesting | |
US11072999B2 (en) | Downhole energy harvesting | |
US20160024869A1 (en) | Completion with subsea feedthrough | |
US20160024868A1 (en) | Completion with subsea feedthrough | |
US11764509B2 (en) | Sliding electrical connector for multilateral well | |
US20160017671A1 (en) | Wellbore electrical isolation system | |
OA19348A (en) | Downhole Energy Harvesting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CONOCOPHILLIPS COMPANY, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VACHON, GUY;NOONAN, SHAUNA G.;REEL/FRAME:036095/0817 Effective date: 20150714 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |