WO2011037477A1 - Integrated production manifold and multiphase pump station - Google Patents

Integrated production manifold and multiphase pump station Download PDF

Info

Publication number
WO2011037477A1
WO2011037477A1 PCT/NO2010/000348 NO2010000348W WO2011037477A1 WO 2011037477 A1 WO2011037477 A1 WO 2011037477A1 NO 2010000348 W NO2010000348 W NO 2010000348W WO 2011037477 A1 WO2011037477 A1 WO 2011037477A1
Authority
WO
WIPO (PCT)
Prior art keywords
subsea
manifold
production
pump unit
mpp
Prior art date
Application number
PCT/NO2010/000348
Other languages
French (fr)
Inventor
Geir Olav Berg
Original Assignee
Aker Subsea As
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 Aker Subsea As filed Critical Aker Subsea As
Priority to AU2010298813A priority Critical patent/AU2010298813A1/en
Priority to GB1204541.5A priority patent/GB2486118A/en
Priority to US13/389,890 priority patent/US20120138307A1/en
Priority to BR112012006458A priority patent/BR112012006458A2/en
Priority to CN2010800362727A priority patent/CN102575511A/en
Priority to RU2012104898/03A priority patent/RU2012104898A/en
Publication of WO2011037477A1 publication Critical patent/WO2011037477A1/en
Priority to NO20120468A priority patent/NO20120468A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/017—Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station

Definitions

  • the present invention relates in general to a subsea production system having a simplified design which is technically reliable and is cost effective.
  • the subsea production system includes floating production storage and offloading units (hereinafter referred to as FPSO at places), subsea umbilicals, risers, flow lines (hereinafter collectively referred to as SURF at places), subsea wells, installations such as a X-mas tree and other units all operatively connected to an integrated production manifold and multiphase pump unit (hereinafter referred to as MPP at places).
  • FPSO at places floating production storage and offloading units
  • SURF at places subsea umbilicals
  • risers risers
  • flow lines hereinafter collectively referred to as SURF at places
  • subsea wells installations such as a X-mas tree and other units all operatively connected to an integrated production manifold and multiphase pump unit (hereinafter referred to as MPP at places).
  • the present invention relates to an integrated production manifold and multiphase pump unit which has a technically reliable simplified design and is cost effective, in as much as significant savings in respect of application of connectivity/features between the production manifold, MPP and other components in the subsea production system (hereinafter referred to as SPS at places) are achieved.
  • the present invention provides a subsea production system according to claim 1 and an integrated production manifold and multi phase pump unit for its application in a SPS, according to claim 13.
  • a subsea production system includes production manifolds, multi phase pump units, FPSO, subsea umbilicals, risers, flow lines (SURF), subsea wells, installations such as a X-mas tree and other features, as are known to persons skilled in the art.
  • a floating production storage and offloading unit (FPSO) is usually known to be a floating vessel used by the off-shore industry for the processing and storage of oil and gas.
  • a FPSO vessel is designed to receive oil or gas produced from nearby platforms or subsea template, process it and store it until oil or gas can be offloaded onto a tanker or transported through a pipe line.
  • Subsea production manifolds are known to be applied for producing hydrocarbons from a plurality of wells. It may comprise an accessory system of piping to a main piping system (or another conductor) that serves to divide a flow into several parts, to combine several flows into one, or to reroute a flow to any one of several possible destinations. Alternatively, it may be a pipe fitting with several side outlets to connect it with other pipes. It is also known that a subsea multi phase pump increases the pressure in the well field. In other words, it adds kinetic energy directly to the flow. The effect is as if the flowing pressure is increased. The flow from the wells increases until a new balance between fluid pressure and system resistance is achieved. The effect is net increase in oil production. The importance of subsea umbilicals, risers, flow lines and other features in subsea production systems are known to persons skilled in the art.
  • production manifolds and multiphase pump units are known to be separately installed along different installations and this involves application of several complicated connectivity/features for ensuring operative association between the production manifolds, multiphase pump units, umbilicals, risers, flow lines, subsea wells and other units including installations, such as a X-mas tree, in a subsea production system.
  • these involve very high maintenance and installation costs and issues often relating to technical reliability crop up due to the complexities.
  • 2008/070648 A2 discloses an improved manifold system comprising two or more subsea trees each connected to a subsea well, a manifold connected to each subsea tree and a first common riser connected to the manifold. Production, maintenance and/or workover of each subsea well take place through the common riser.
  • This document does teach in an indirect manner simplification and reduction in the components required for operative association between the various units including installations, such as a X-mas tree, in a subsea production system.
  • it does not directly teach integrating a production manifold and a multiphase pump unit with a view to achieve such motive. Rather, it focuses on proving a low cost manifold that can be used with an Early Production System (EPS) to produce, maintain and/or workover multiple subsea wet-tree wells through a common riser system.
  • EPS Early Production System
  • Framo engineering has developed a multi port selector manifold (MSM) which includes production and test facilities, a lift gas system, a multi phase flow meter and a multi phase booster pump and controls.(Offshore Magazine, Published 1 st August 2006). Very much like the disclosure in WO 2008/070648 A2, Framo engineering concentrates on reducing the size and weight of the compact manifold. It also advocates a single control system that can control not only a large number of valves and sensors for each pod, but also the pump, multiphase meter and the tree controls. However, Framo engineering does not advocate directly integrating a production manifold and a multiphase pump unit with a view to simplify and/or reduce the components required to ensure operative association between the various units in a subsea production system.
  • MCM multi port selector manifold
  • the present invention aims to meet the above need hitherto not taught by prior art, by providing a subsea production system which by virtue of its specially configured construction, plays a significant role to simplify and/or to reduce the components required for operative association between the various units, in a subsea production system.
  • Another object of the present invention is to provide an integrated production manifold and multiphase pump unit for its application in a subsea production system for simplifying and/or for reducing the components required for operative association between the various units, in a subsea production system.
  • oil, gas, hydrocarbons, SPS, production manifold, multiphase pump unit, ROV are to be interpreted in the broadest sense of the respective terms and includes all similar items in the field known by other terms, as may be clear to persons skilled in the art.
  • production wherever applied, should be understood as relating to production of oil, gas and other hydrocarbons involved in subsea drilling operations.
  • a subsea production system including at least a production manifold and a multi phase pump unit (MPP) for subsea operation.
  • the production manifold and the pumping unit have respective modules for control/operation.
  • the manifold and the pumping unit are operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations such as X-mas tree and other units in said system.
  • FPSO floating production storage and offloading unit
  • the manifold is adapted for its application for producing hydrocarbons from a plurality of wells.
  • the pump unit is adapted to add kinetic energy along flow lines.
  • the manifold and said pump unit are integrally disposed adjacent to one another, on a common foundation and are adapted to have a common support structure and common suction anchor system, along a single installation.
  • the MPP modules and equipments associated therewith are incorporated within said manifold module.
  • the pump high voltage power supply cables are incorporated within the production umbilicals.
  • said manifold and said pump unit are adapted to have commonality of spares and are adapted to be operated by the same ROV tools.
  • an installation operatively connected to the subsea production system according to a first aspect of the present invention.
  • the installation is a X-Mas tree.
  • a subsea production station comprising at least a subsea production system (SPS) according to the first aspect of the present invention.
  • SPS subsea production system
  • an integrated production manifold and multi phase pump unit for application in a subsea production system, each having respective modules for control/operation.
  • the manifold and the pumping unit are operatively connected to at least one floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations, such as a X-mas tree, and other units of said production system.
  • FPSO floating production storage and offloading unit
  • the manifold and pump unit are integrally disposed adjacent to one another on a common foundation and are adapted to have a common support structure and common suction anchor system along a single installation.
  • the MPP modules and equipments associated therewith are incorporated within manifold modules and high voltage pump power supply cables are incorporated within the production umbilicals.
  • the present invention also embraces a plurality of such integrated manifold and multiphase pump units, operatively connected to each other and to other units in a subsea production station.
  • Fig. 1(a) is a perspective view of the integrated unit according to the present invention.
  • Fig. 1(b) is a perspective view of a preferred embodiment of the integrated unit according to the present invention, showing the connectivity between the various components.
  • Fig. 1(c) is a front exploded view of the integrated unit illustrated in fig. 1(b).
  • Fig. 1(d) is a top elevation view of the integrated unit illustrated in fig. 1(a).
  • Fig. 2 is a block diagram of the various interfaces of the integrated unit, according to the present invention.
  • Fig. 3 is a flow diagram, illustrating the connectivity between the various components of the MPP system according to a preferred embodiment of the present invention.
  • the present invention aims to simplify and/or to reduce the components required for ensuring operative association between the various units, in a subsea production system.
  • the present invention ensures significant reduction in costs and simultaneously ensuring substantial enhancement in technical reliability in the operation of a subsea production system. This is primarily achieved by a brilliant engineering manoeuvring which involves integrating the production manifold and the multiphase unit in a subsea production station, such that components required for connection between the production manifold and the multiphase pump unit and between the other units such as FPSO, SURF, subsea wells, installations such as X-mas trees in a subsea production station are simplified and/or reduced.
  • the manifold 4 includes the ROV panel 6, a housing having preferably eight production inlets into which individual wells are connected.
  • the ROV panel 6 has a main production outlet and a testing outlet.
  • the guide post 5 It can be of larger size as compared to other CLOV manifolds, as will be known to persons skilled in the art, but this is not consequential to the present invention.
  • Similar comments apply in respect of the multiphase pump unit 7 as well, which is field proven over several years.
  • the novelty and inventive step lies in the integration of these two units into a comprehensive unit, whereby distinctive technical advantages and economic significance, hitherto not achieved in the industry are arrived at.
  • this integrated unit is installed along a single installation, thereby doing away with old requirement of separate installations for both such units.
  • the integrated unit rests on a common foundation 2 and is anchored along a common suction anchor 1.
  • the levelling frame 3 advantageously facilitates integrated adjacent disposition of the production manifold 4 and the multiphase pump unit 7 along a single installation.
  • the flow lines connected to the manifold 4 forms a pigging loop (not shown) about the guide post 5 in the manifold.
  • the accompanying figure 1(b) illustrates another preferred embodiment of the integrated unit according to the present invention.
  • the connections between the various components are shown.
  • the same reference numerals as in fig 1(a) indicate the same features as in fig 1(a).
  • the manifold 4 is shown disposed on the left of the multiphase pump unit 7. It also shows the manifold valves 4'.
  • the accompanying figure 1(c) is an exploded view of the unit shown in fig 1(b), the like reference numerals are indicating the same features.
  • the accompanying figure 1(d) illustrates a top view of the unit shown in fig 1(a).
  • the high voltage pump power supply cables are incorporated within the production umbilicals, thus avoiding the need for a dedicated pump umbilical.
  • SPS subsea production system
  • MPP multiphase pump unit
  • the accompanying figure 2 illustrates a block diagram of the various interfaces of the integrated unit according to the present invention. It shows the production umbilicals 14' connecting to the power control module (PCM) 8 and to the MPP system control unit (SCU) 9 and to the subsea production system (SPS) 10. These production umbilicals therefore have high power supply cables for both the pump unit as well as for the production manifolds.
  • the power cores generate a quite high temperature when the umbilicals are exposed to warm air in the I-tube.
  • the temperature in the combined cross-sections (two smaller umbilicals) is 15°C less than that stand alone (one large umbilical). That apart commonality of spares is ensured.
  • either of the production umbilicals 14' is adapted to function in a sacrosanct manner, in the event of break down of the other.
  • the other interfaces shown in the accompanying figure 2 are the high voltage jumper 13, the barrier fluid jumper 12, the umbilical terminal heads 14, the ten inches spools 20 and the welding interface 23.
  • the pump station comprises ten inches ball valves 21 which are hydraulically/ROV operated (2 off for each pump module), eight inches gate valves or ball valves 22, 22' which are hydraulically/ROV operated (2 off for each pump module), sensors on pump module 16, sensors on retrievable pump 17, hydraulic functions 18, MPP subsea control module 15 and sensor jumpers 11.
  • This figure also shows ten inches header pipes 19 on the production manifold 4.
  • the main benefits of the combined MPP/SPS subsea station according to the present invention are: a) The MPP modules and associated equipment are incorporated within the production manifold, thus removing the need for a dedicated MPP manifold.
  • the MPP support structure is incorporated into the SPS support structure, thus removing the need for a dedicated MPP support structure.
  • the MPP suction anchor is incorporated into the SPS suction anchor, thus removing the need for a dedicated MPP suction anchor.
  • the main benefits of the control system applied in the present invention are: a) Utilisation of existing subsea production system (SPS) power and communications distribution equipment to support the MPP system. b) MPP subsea control module (SCM)/subsea control module mounting base (SCMMB) design and associated controls equipments are subject to the same specification requirements and share the same common envelope and ROV interface features as the main SPS equipment ensuring commonality of tooling and test equipment.
  • SPS subsea production system
  • SCMMB subsea control module mounting base
  • SCM MPP system control modules
  • SPS main subsea production system
  • SCU subsea control unit
  • SPCU subsea production control unit
  • the main benefits of the umbilicals applied in the present invention are: a) The power cores generate a quite high temperature when the umbilicals are exposed to warm air in the I-tube.
  • the temperature in the combined cross-sections (two smaller umbilicals) as illustrated in the accompanying figure 2 and explained hereinbefore, is 15°C less than the stand alone (one large umbilical).
  • the main benefits of the tie-in system applied in the present invention are:
  • Intervention System and ROV Tooling applied in the present invention are: a) Usage of same ROV tools as for both Pump system and manifold system.
  • FIG. 3 is a flow diagram, illustrating by way of understanding and not by way of.limitation, the connectivity between the various components of the MPP system according to a preferred embodiment of the present invention. It shows the pump 7, the chemical injection valve 24, choke 25, outlet branch valves 26, flow splitter 27, the recirculation line 28, the flow mixer 29, the inlet branch valves 30, by pass header 31, and the by pass valve 32. Further, the six inches, eight inches and ten inches dimensions provided are exemplary and non-limiting. The working of the various components will be clear to persons skilled in the art.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Earth Drilling (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A subsea production station (SPS) including at least a production manifold and a multi phase pump unit (MPP) for subsea operation is shown. Each of them has respective modules for control/operation operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations such as X-mas tree and other units in the system. The manifold (4) is adapted for its application for producing hydrocarbons from a plurality of wells. The pump unit (7) is adapted to add kinetic energy along the flow lines. The manifold (4) and the pump unit (7) are integrally disposed adjacent to one another on a common foundation (2) and are adapted to have a common support structure and common suction anchor (1).

Description

Integrated Production Manifold and Multiphase Pump Station Field of the invention
The present invention relates in general to a subsea production system having a simplified design which is technically reliable and is cost effective. The subsea production system includes floating production storage and offloading units (hereinafter referred to as FPSO at places), subsea umbilicals, risers, flow lines (hereinafter collectively referred to as SURF at places), subsea wells, installations such as a X-mas tree and other units all operatively connected to an integrated production manifold and multiphase pump unit (hereinafter referred to as MPP at places). More particularly, the present invention relates to an integrated production manifold and multiphase pump unit which has a technically reliable simplified design and is cost effective, in as much as significant savings in respect of application of connectivity/features between the production manifold, MPP and other components in the subsea production system (hereinafter referred to as SPS at places) are achieved. Specifically, the present invention provides a subsea production system according to claim 1 and an integrated production manifold and multi phase pump unit for its application in a SPS, according to claim 13.
Technical Background
In the field of offshore oil exploration, it is known that a subsea production system (SPS) includes production manifolds, multi phase pump units, FPSO, subsea umbilicals, risers, flow lines (SURF), subsea wells, installations such as a X-mas tree and other features, as are known to persons skilled in the art. A floating production storage and offloading unit (FPSO) is usually known to be a floating vessel used by the off-shore industry for the processing and storage of oil and gas. A FPSO vessel is designed to receive oil or gas produced from nearby platforms or subsea template, process it and store it until oil or gas can be offloaded onto a tanker or transported through a pipe line. Subsea production manifolds are known to be applied for producing hydrocarbons from a plurality of wells. It may comprise an accessory system of piping to a main piping system (or another conductor) that serves to divide a flow into several parts, to combine several flows into one, or to reroute a flow to any one of several possible destinations. Alternatively, it may be a pipe fitting with several side outlets to connect it with other pipes. It is also known that a subsea multi phase pump increases the pressure in the well field. In other words, it adds kinetic energy directly to the flow. The effect is as if the flowing pressure is increased. The flow from the wells increases until a new balance between fluid pressure and system resistance is achieved. The effect is net increase in oil production. The importance of subsea umbilicals, risers, flow lines and other features in subsea production systems are known to persons skilled in the art.
Now, for exploration of oil and gas in a subsea environment, production manifolds and multiphase pump units are known to be separately installed along different installations and this involves application of several complicated connectivity/features for ensuring operative association between the production manifolds, multiphase pump units, umbilicals, risers, flow lines, subsea wells and other units including installations, such as a X-mas tree, in a subsea production system. Obviously, these involve very high maintenance and installation costs and issues often relating to technical reliability crop up due to the complexities.
Over the years, attempts have been made to simplify and/or reduce the components required for operative association between the various units in a subsea production system. However, in prior art technology there has been no attempt to integrate the production manifolds and multiphase pump units with a view to simplify and/or reduce the components, to ensure operative association between the various units in a subsea production system. WO
2008/070648 A2 discloses an improved manifold system comprising two or more subsea trees each connected to a subsea well, a manifold connected to each subsea tree and a first common riser connected to the manifold. Production, maintenance and/or workover of each subsea well take place through the common riser. This document does teach in an indirect manner simplification and reduction in the components required for operative association between the various units including installations, such as a X-mas tree, in a subsea production system. However, it does not directly teach integrating a production manifold and a multiphase pump unit with a view to achieve such motive. Rather, it focuses on proving a low cost manifold that can be used with an Early Production System (EPS) to produce, maintain and/or workover multiple subsea wet-tree wells through a common riser system.
Framo engineering has developed a multi port selector manifold (MSM) which includes production and test facilities, a lift gas system, a multi phase flow meter and a multi phase booster pump and controls.(Offshore Magazine, Published 1st August 2006). Very much like the disclosure in WO 2008/070648 A2, Framo engineering concentrates on reducing the size and weight of the compact manifold. It also advocates a single control system that can control not only a large number of valves and sensors for each pod, but also the pump, multiphase meter and the tree controls. However, Framo engineering does not advocate directly integrating a production manifold and a multiphase pump unit with a view to simplify and/or reduce the components required to ensure operative association between the various units in a subsea production system.
Accordingly, there was a long felt need for a design in a subsea production environment for simplification and/or reducing the components required to ensure operative association between the various units in a subsea production system, so that effective cost saving is achieved and simultaneously, technical reliability of the entire system is substantially enhanced. The present invention meets this long felt need and other needs associated therewith.
Objects of the invention
The present invention aims to meet the above need hitherto not taught by prior art, by providing a subsea production system which by virtue of its specially configured construction, plays a significant role to simplify and/or to reduce the components required for operative association between the various units, in a subsea production system.
Another object of the present invention is to provide an integrated production manifold and multiphase pump unit for its application in a subsea production system for simplifying and/or for reducing the components required for operative association between the various units, in a subsea production system.
It is another object of the present invention to provide an integrated production manifold and multiphase pump unit for its application in a subsea production system such that significant cost effectiveness is achieved without compromising with the technical effectiveness.
It is another object of the present invention to achieve SURF scope savings in a subsea production station. It is a further object of the present invention to achieve SPS and MPP scope savings in a subsea production station.
It is another object of the present invention to achieve advantageous configurations in the control system and umbilicals of a subsea production station.
It is a further object of the present invention to substantially enhance technical reliability and to achieve significant cost savings in the operation of a subsea production station/system, by reducing the number of subsea connections and equipments in a subsea production system.
It is another important object of the present invention to provide a subsea production station incorporating subsea production systems, each such system by virtue of its specially configured construction, plays a significant role to simplify and/or to reduce the components required for operative association between the various units including production manifolds, multiphase pump units, umbilicals, risers, flow lines, subsea wells, installations such as a X- mas tree, in a subsea production station.
In addition, the present invention discloses some advantageous features still not disclosed in prior art.
Throughout the entire specification, including the claims, the words oil, gas, hydrocarbons, SPS, production manifold, multiphase pump unit, ROV are to be interpreted in the broadest sense of the respective terms and includes all similar items in the field known by other terms, as may be clear to persons skilled in the art. Furthermore, the term production wherever applied, should be understood as relating to production of oil, gas and other hydrocarbons involved in subsea drilling operations.
Summary of the invention
According to a first aspect of the present invention there is provided a subsea production system (SPS) including at least a production manifold and a multi phase pump unit (MPP) for subsea operation. The production manifold and the pumping unit have respective modules for control/operation. The manifold and the pumping unit are operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations such as X-mas tree and other units in said system. The manifold is adapted for its application for producing hydrocarbons from a plurality of wells. The pump unit is adapted to add kinetic energy along flow lines. According to the invention the manifold and said pump unit are integrally disposed adjacent to one another, on a common foundation and are adapted to have a common support structure and common suction anchor system, along a single installation.
According to a preferred embodiment of the first aspect of the present invention, the MPP modules and equipments associated therewith are incorporated within said manifold module.
Preferably, the pump high voltage power supply cables are incorporated within the production umbilicals.
According to another preferred embodiment of the first aspect of the present invention, said manifold and said pump unit are adapted to have commonality of spares and are adapted to be operated by the same ROV tools.
According to a second aspect of the present invention, there is provided an installation operatively connected to the subsea production system according to a first aspect of the present invention.
Preferably, the installation is a X-Mas tree.
According to a third aspect of the present invention there is provided a subsea production station comprising at least a subsea production system (SPS) according to the first aspect of the present invention.
According to a fourth aspect of the present invention, there is provided an integrated production manifold and multi phase pump unit (MPP) for application in a subsea production system, each having respective modules for control/operation. The manifold and the pumping unit are operatively connected to at least one floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations, such as a X-mas tree, and other units of said production system. According to the fourth aspect of the present invention, the manifold and pump unit are integrally disposed adjacent to one another on a common foundation and are adapted to have a common support structure and common suction anchor system along a single installation. The MPP modules and equipments associated therewith are incorporated within manifold modules and high voltage pump power supply cables are incorporated within the production umbilicals.
The present invention also embraces a plurality of such integrated manifold and multiphase pump units, operatively connected to each other and to other units in a subsea production station.
Short description of the figures
Having described the main features of the invention above, a more detailed and non-limiting description of some exemplary preferred embodiments will be given in the following with reference to the drawings, in which:
Fig. 1(a) is a perspective view of the integrated unit according to the present invention.
Fig. 1(b) is a perspective view of a preferred embodiment of the integrated unit according to the present invention, showing the connectivity between the various components.
Fig. 1(c) is a front exploded view of the integrated unit illustrated in fig. 1(b).
Fig. 1(d) is a top elevation view of the integrated unit illustrated in fig. 1(a).
Fig. 2 is a block diagram of the various interfaces of the integrated unit, according to the present invention.
Fig. 3 is a flow diagram, illustrating the connectivity between the various components of the MPP system according to a preferred embodiment of the present invention.
Detailed description of the invention
The present invention aims to simplify and/or to reduce the components required for ensuring operative association between the various units, in a subsea production system. The present invention ensures significant reduction in costs and simultaneously ensuring substantial enhancement in technical reliability in the operation of a subsea production system. This is primarily achieved by a brilliant engineering manoeuvring which involves integrating the production manifold and the multiphase unit in a subsea production station, such that components required for connection between the production manifold and the multiphase pump unit and between the other units such as FPSO, SURF, subsea wells, installations such as X-mas trees in a subsea production station are simplified and/or reduced.
The accompanying figure 1(a) elaborately illustrates the integrated production manifold 4 and the multiphase pump unit 7 according to the present invention. As will be readily understood from this figure, the manifold 4 includes the ROV panel 6, a housing having preferably eight production inlets into which individual wells are connected. Advantageously, it has a main production outlet and a testing outlet. It also has the guide post 5. It can be of larger size as compared to other CLOV manifolds, as will be known to persons skilled in the art, but this is not consequential to the present invention. Similar comments apply in respect of the multiphase pump unit 7 as well, which is field proven over several years. The novelty and inventive step lies in the integration of these two units into a comprehensive unit, whereby distinctive technical advantages and economic significance, hitherto not achieved in the industry are arrived at. As it will be evident from the accompanying figure 1, this integrated unit is installed along a single installation, thereby doing away with old requirement of separate installations for both such units. The integrated unit rests on a common foundation 2 and is anchored along a common suction anchor 1. The levelling frame 3 advantageously facilitates integrated adjacent disposition of the production manifold 4 and the multiphase pump unit 7 along a single installation. Advantageously, the flow lines connected to the manifold 4 forms a pigging loop (not shown) about the guide post 5 in the manifold.
In the above context it is hereby clarified that for the sake of understanding only one integrated unit is shown in the accompanying figure 1(a), but the present invention embraces a plurality of such integrated units being applied in a subsea exploration operation.
The accompanying figure 1(b) illustrates another preferred embodiment of the integrated unit according to the present invention. In this embodiment the connections between the various components are shown. The same reference numerals as in fig 1(a) indicate the same features as in fig 1(a). In this preferred embodiment, the manifold 4 is shown disposed on the left of the multiphase pump unit 7. It also shows the manifold valves 4'. The accompanying figure 1(c) is an exploded view of the unit shown in fig 1(b), the like reference numerals are indicating the same features. The accompanying figure 1(d) illustrates a top view of the unit shown in fig 1(a). Combining the production manifold and the multiphase pump to one combined subsea manifold/pump station according to the present invention, reduces cost and
increases reliability by reducing the number of subsea connections and equipments in a subsea production system.
Advantageously, according to the present invention, the high voltage pump power supply cables are incorporated within the production umbilicals, thus avoiding the need for a dedicated pump umbilical.
An outline of the subsea umbilicals, risers, flow lines (SURF) scope savings are as follows:
- 2 off flow line spools saved between manifold and pump.
- Installation of 1 off manifold saved (installation of one combined manifold instead of separate pump and manifold installation).
- Installation of 1 off manifold foundation saved.
- Installation of 2 off flow line spools between manifold and pump saved.
- 1 off production umbilical saved functionality for production umbilical included in the pump umbilicals based on combined design (i.e. reducing double functions).
An outline of the subsea production system (SPS) and multiphase pump unit (MPP) scope savings are as follows:
- Tie-in hubs saved (piping on manifold directly connect to piping on pump, and hence no jumpers needed),
- 1 off manifold module saved (one combined manifold module only needed for combined pump/manifold),
- 1 off manifold support structure saved (one combined manifold support structure only needed for combined pump/manifold),
- 1 off suction anchor saved (one combined MPP/production suction anchor instead of separate MPP and SPS manifold suction anchors).
An outline of the FPSO scope savings are as follows:
Save guide tube on FPSO
The accompanying figure 2 illustrates a block diagram of the various interfaces of the integrated unit according to the present invention. It shows the production umbilicals 14' connecting to the power control module (PCM) 8 and to the MPP system control unit (SCU) 9 and to the subsea production system (SPS) 10. These production umbilicals therefore have high power supply cables for both the pump unit as well as for the production manifolds. The power cores generate a quite high temperature when the umbilicals are exposed to warm air in the I-tube. The temperature in the combined cross-sections (two smaller umbilicals) is 15°C less than that stand alone (one large umbilical). That apart commonality of spares is ensured. Furthermore, either of the production umbilicals 14' is adapted to function in a sacrosanct manner, in the event of break down of the other.
The other interfaces shown in the accompanying figure 2 are the high voltage jumper 13, the barrier fluid jumper 12, the umbilical terminal heads 14, the ten inches spools 20 and the welding interface 23. The pump station comprises ten inches ball valves 21 which are hydraulically/ROV operated (2 off for each pump module), eight inches gate valves or ball valves 22, 22' which are hydraulically/ROV operated (2 off for each pump module), sensors on pump module 16, sensors on retrievable pump 17, hydraulic functions 18, MPP subsea control module 15 and sensor jumpers 11. This figure also shows ten inches header pipes 19 on the production manifold 4.
As it will be understood from the description of the invention with reference to the drawings as provided hereinafter, the main benefits of the combined MPP/SPS subsea station according to the present invention are: a) The MPP modules and associated equipment are incorporated within the production manifold, thus removing the need for a dedicated MPP manifold.
b) The MPP support structure is incorporated into the SPS support structure, thus removing the need for a dedicated MPP support structure.
c) The MPP suction anchor is incorporated into the SPS suction anchor, thus removing the need for a dedicated MPP suction anchor.
The main benefits of the control system applied in the present invention are: a) Utilisation of existing subsea production system (SPS) power and communications distribution equipment to support the MPP system. b) MPP subsea control module (SCM)/subsea control module mounting base (SCMMB) design and associated controls equipments are subject to the same specification requirements and share the same common envelope and ROV interface features as the main SPS equipment ensuring commonality of tooling and test equipment.
c) MPP system control modules (SCM) are controlled and monitored via the main subsea production system (SPS) subsea control unit (SCU)/subsea production control unit (SPCU). d) Commonality of spares.
The main benefits of the umbilicals applied in the present invention are: a) The power cores generate a quite high temperature when the umbilicals are exposed to warm air in the I-tube. The temperature in the combined cross-sections (two smaller umbilicals) as illustrated in the accompanying figure 2 and explained hereinbefore, is 15°C less than the stand alone (one large umbilical).
b) Commonality of spares.
c) Increased reliability/availability of the pump system. With one power umbilical
damaged/down, there is still another one to supply power to one pump system and
communication to both pump system control modules.
The main benefits of the tie-in system applied in the present invention are:
a) Removal of tie-in connections between the MPP and SPS manifold
b) Commonality of spares.
The main benefits of the Intervention System and ROV Tooling applied in the present invention are: a) Usage of same ROV tools as for both Pump system and manifold system.
b) Commonality of spares.
In a nut shell, the present invention primarily achieves substantial enhancement in technical reliability and significant cost savings in the operation of a subsea production station/system, by reducing the number of subsea connections and equipments in a subsea production system. The accompanying figure 3 is a flow diagram, illustrating by way of understanding and not by way of.limitation, the connectivity between the various components of the MPP system according to a preferred embodiment of the present invention. It shows the pump 7, the chemical injection valve 24, choke 25, outlet branch valves 26, flow splitter 27, the recirculation line 28, the flow mixer 29, the inlet branch valves 30, by pass header 31, and the by pass valve 32. Further, the six inches, eight inches and ten inches dimensions provided are exemplary and non-limiting. The working of the various components will be clear to persons skilled in the art.
The present invention has been described with reference to some exemplary embodiments and some drawings for the sake of understanding only and it should be clear to persons skilled in the art, that the present invention includes all legitimate modifications within the ambit of what has been described hereinbefore and claimed in the appended claims.

Claims

P a t e n t c l a i m s 1.
A subsea production system (SPS) including at least a production manifold and a multi phase pump unit (MPP) for subsea operation each having respective modules for control/operation, operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations such as X-mas tree and other units in said system, said manifold (4) being adapted for its application for producing hydrocarbons from a plurality of wells and said pump unit (7) being adapted to add kinetic energy along flow lines, characterized in that said manifold (4) and said pump unit (7) are integrally disposed adjacent to one another, on a common foundation (2) and are adapted to have a common support structure and common suction anchor (1), along a single installation.
2.
The subsea production system according to claim 1, characterized in that the MPP modules and equipments associated therewith are incorporated within said manifold module.
3.
The subsea production system according to any preceding claim, characterized in that high voltage pump power supply cables are incorporated within the production umbilicals.
4.
The subsea production system according to any preceding claim, characterized in that said manifold and said pump unit are adapted to have commonality of spares and are adapted to be operated by the same ROV tools.
5.
The subsea production system according to any preceding claim, characterized in that tie-in connections between said pump unit and said manifold are replaced by means of piping on manifold, directly connected to piping on said pump unit.
6.
The subsea production system according to any preceding claims, characterized in that two flow line spools between said manifold and said pump unit are caused to be removed.
7.
The subsea production system according to any preceding claims, characterized in that a control system of said subsea production system is adapted to utilize existing subsea production system power and communication distribution equipment.
8.
The subsea production system according to any preceding claims, characterized in that in said control system, multi phase pump unit (MMP), subsea control module (SCM), subsea control module mounting base (SCMMB) design and equipments associated therewith have the same specification requirements and share the same common envelope and ROV interface features as main SPS equipment.
9.
The subsea production system according to any preceding claims, characterized in that in said control system, the multiphase pump unit (MPP) subsea control modules (SCM) are adapted to be controlled and monitored via the main SPS subsea control unit (SCU)/subsea production control unit (SPCU).
10.
An installation, operatively connected to the subsea production system according to any preceding claim for enabling subsea oil exploration.
11.
The installation according to claim 10, characterized in that said installation is an X- Mas tree.
12.
A subsea production station comprising at least a subsea production system (SPS), each said system including at least a production manifold and a multi phase pump unit (MPP) for subsea operation each having respective modules for control/operation, operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells installations such as X-mas tree and other units in said system, said manifold (4) being adapted for its application for producing hydrocarbons from a plurality of wells and said pump unit (7) being adapted to add kinetic energy along flow lines, characterized in that said manifold (4) and said pump unit (7) are integrally disposed adjacent to one another, on a common foundation (2) and are adapted to have a common support structure and common suction anchor system (1), along a single installation.
13.
An integrated production manifold and multi phase pump unit (MPP) for application in subsea production system, each having respective modules for control/operation, said manifold (4) and said pumping unit (7) being operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installation such as a X-mas tree and other units of said production system, characterized in that said manifold (4) and said pump unit (7) are integrally disposed adjacent to one another on a common foundation (2) and are adapted to have a common support structure and common suction anchor system (1) along a single installation, the MPP modules and equipments associated therewith being incorporated within manifold modules and pump high voltage power supply cables being
incorporated within the production umbilicals.
14.
The integrated production manifold and multiphase pump unit according to claim 13, characterized in that said manifold and said pump unit are adapted to have
commonality of spares and are adapted to be operated by the same ROV.
15.
The integrated production manifold and multiphase pump unit according to claims 13 or 14, characterized in that tie-in connection between MPP and manifold are caused to be removed by means of a piping on manifold directly connected to piping on pump unit.
16.
The integrated production manifold and multiphase pump unit according to claim 15, characterized in that there are provided at least two production umbilicals (14') having high voltage power supply cables for both pump unit as well as for production manifold.
17.
The integrated production manifold and multiphase pump unit according to claim 16, characterized in that either of said production umbilicals (14') are adapted to function normally in a sacrosanct manner in the event of break down of the other.
18.
The integrated production manifold and multiphase pump unit according to any of the claims 13 to 17, characterized in that two flow line spools between said manifold and said pump unit are caused to be removed.
19.
The integrated production manifold and multiphase pump unit according to any of the claims 13 to 18, characterized in that control system of said subsea production system is adapted to utilize existing subsea production system power and communication distribution equipment and in said control system, multi phase pump unit (MMP), subsea control module (SCM), subsea control module mounting base (SCMMB) design and equipments associated therewith have the same specification requirements and share the same common envelope and ROV interface features as main SPS equipment.
20.
The integrated production manifold and multiphase pump unit according to claim 19, characterized in that in said control system, the multiphase pump unit (MPP) subsea control modules (SCM) are adapted to be controlled and monitored via the main SPS subsea control unit (SCU)/subsea production control unit (SPCU).
21.
The integrated production manifold and multiphase pump unit according to claim 20, characterized in that the flow lines connected to said manifold forms a pigging loop about the guide post in said manifold.
PCT/NO2010/000348 2009-09-25 2010-09-24 Integrated production manifold and multiphase pump station WO2011037477A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AU2010298813A AU2010298813A1 (en) 2009-09-25 2010-09-24 Integrated production manifold and multiphase pump station
GB1204541.5A GB2486118A (en) 2009-09-25 2010-09-24 Integrated production to manifold and multiphase pump station
US13/389,890 US20120138307A1 (en) 2009-09-25 2010-09-24 Integrated production manifold and multiphase pump station
BR112012006458A BR112012006458A2 (en) 2009-09-25 2010-09-24 integrated production valve manifold and multiphase pump station
CN2010800362727A CN102575511A (en) 2009-09-25 2010-09-24 Integrated production manifold and multiphase pump station
RU2012104898/03A RU2012104898A (en) 2009-09-25 2010-09-24 STATION COMBINING OPERATIONAL MANIFOLD WITH A MULTI-PHASE PUMP
NO20120468A NO20120468A1 (en) 2009-09-25 2012-04-23 Integrated production manifold and multiphase pump station

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20093062 2009-09-25
NO20093062 2009-09-25

Publications (1)

Publication Number Publication Date
WO2011037477A1 true WO2011037477A1 (en) 2011-03-31

Family

ID=43796048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2010/000348 WO2011037477A1 (en) 2009-09-25 2010-09-24 Integrated production manifold and multiphase pump station

Country Status (8)

Country Link
US (1) US20120138307A1 (en)
CN (1) CN102575511A (en)
AU (1) AU2010298813A1 (en)
BR (1) BR112012006458A2 (en)
GB (1) GB2486118A (en)
NO (1) NO20120468A1 (en)
RU (1) RU2012104898A (en)
WO (1) WO2011037477A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109826564A (en) * 2019-02-28 2019-05-31 中国地质大学（武汉） Utilize the continuous cased sea-bottom shallow rapid-result straight well device and method fastly of suction anchor
US10435991B2 (en) 2014-11-05 2019-10-08 Subsea 7 Norway As Handling heavy subsea structures

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9133690B1 (en) * 2014-09-09 2015-09-15 Chevron U.S.A. Inc. System and method for mitigating pressure drop at subsea pump startup
US9512700B2 (en) * 2014-11-13 2016-12-06 General Electric Company Subsea fluid processing system and an associated method thereof
EP3054083B1 (en) * 2015-02-05 2017-05-17 Saipem S.p.A. Underwater hydrocarbon processing facility
US10463990B2 (en) 2015-12-14 2019-11-05 General Electric Company Multiphase pumping system with recuperative cooling
GB2549102A (en) * 2016-04-04 2017-10-11 Forsys Subsea Ltd Pipeline integrated manifold
GB201622129D0 (en) * 2016-12-23 2017-02-08 Statoil Petroleum As Subsea assembly modularisation
US20180284817A1 (en) * 2017-04-03 2018-10-04 Fmc Technologies, Inc. Universal frac manifold power and control system
CN107792306B (en) * 2017-11-24 2023-08-15 惠生（南通）重工有限公司 Buoyancy tower platform
CN107878699A (en) * 2017-11-30 2018-04-06 惠生（南通）重工有限公司 A kind of Floating LNG production vessel
NO345260B1 (en) * 2018-08-15 2020-11-23 Subsea 7 Norway As A towable subsea structure and a method of processing fluid subsea
GB2576341B (en) 2018-08-15 2021-05-19 Subsea 7 Norway As Subsea frame having structural members which effect fluid communication.
US11230907B2 (en) 2019-07-23 2022-01-25 Onesubsea Ip Uk Limited Horizontal connector system and method
CN113062708A (en) * 2021-03-05 2021-07-02 海洋石油工程股份有限公司 Underwater central manifold with control system
CN113982541A (en) * 2021-08-10 2022-01-28 海洋石油工程股份有限公司 Independently become high integrality pressure protection device under water of sled
WO2023110149A2 (en) * 2021-12-14 2023-06-22 Baker Hughes Energy Technology UK Limited Additive manufactured manifolds with removable connections

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050178556A1 (en) * 2002-06-28 2005-08-18 Appleford David E. Subsea hydrocarbon production system
WO2008070648A2 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Subsea manifold system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294471A (en) * 1979-11-30 1981-10-13 Vetco Inc. Subsea flowline connector
BR9203009A (en) * 1992-08-03 1994-03-01 Petroleo Brasileiro Sa EQUIPMENT TO BE INSTALLED ON FLOW LINES THAT CONNECT AN OIL COLLECTION CENTER TO A SATELLITE POCO TO ALLOW THE PASS OF A PIG
NO960698D0 (en) * 1996-02-21 1996-02-21 Statoil As Ship anchoring system
GB9911146D0 (en) * 1999-05-14 1999-07-14 Enhanced Recovery Limited Des Method
EP1353038A1 (en) * 2002-04-08 2003-10-15 Cooper Cameron Corporation Subsea process assembly
US7921919B2 (en) * 2007-04-24 2011-04-12 Horton Technologies, Llc Subsea well control system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050178556A1 (en) * 2002-06-28 2005-08-18 Appleford David E. Subsea hydrocarbon production system
WO2008070648A2 (en) * 2006-12-06 2008-06-12 Chevron U.S.A. Inc. Subsea manifold system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10435991B2 (en) 2014-11-05 2019-10-08 Subsea 7 Norway As Handling heavy subsea structures
US10890051B2 (en) 2014-11-05 2021-01-12 Subsea 7 Norway As Handling heavy subsea structures
CN109826564A (en) * 2019-02-28 2019-05-31 中国地质大学（武汉） Utilize the continuous cased sea-bottom shallow rapid-result straight well device and method fastly of suction anchor
CN109826564B (en) * 2019-02-28 2023-11-07 中国地质大学（武汉） Seabed shallow rapid vertical well forming device and method for continuously casing by using suction anchor

Also Published As

Publication number Publication date
GB201204541D0 (en) 2012-04-25
RU2012104898A (en) 2013-10-27
AU2010298813A1 (en) 2012-03-01
BR112012006458A2 (en) 2016-04-26
US20120138307A1 (en) 2012-06-07
CN102575511A (en) 2012-07-11
GB2486118A (en) 2012-06-06
NO20120468A1 (en) 2012-04-23

Similar Documents

Publication Publication Date Title
US20120138307A1 (en) Integrated production manifold and multiphase pump station
US7793724B2 (en) Subsea manifold system
US8083501B2 (en) Subsea pumping system including a skid with wet matable electrical and hydraulic connections
US7516795B2 (en) Subsea petroleum production system method of installation and use of the same
US11142984B2 (en) Apparatus, systems and method for oil and gas operations
EP1444415B1 (en) Single well development system
US9920597B2 (en) System for subsea pumping or compressing
AU2015363810B2 (en) Subsea manifold system
US11236589B2 (en) Subsea system and method of installing a subsea system
US20220090471A1 (en) Apparatus, Systems and Methods for Oil and Gas Operations
Ju et al. Perdido development: subsea and flowline systems
US9720421B2 (en) Subsea production system with multiple location master control station system
EP4127482B1 (en) Modularized subsea compressor train and method of installation
US20220010643A1 (en) Junction box for connecting two umbilical sections
CN104234692A (en) Modularization system of deepwater test ground device

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080036272.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10819090

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 212/KOLNP/2012

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2010298813

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 13389890

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2010298813

Country of ref document: AU

Date of ref document: 20100924

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 1204541

Country of ref document: GB

Kind code of ref document: A

Free format text: PCT FILING DATE = 20100924

WWE Wipo information: entry into national phase

Ref document number: 1204541.5

Country of ref document: GB

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012104898

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 10819090

Country of ref document: EP

Kind code of ref document: A1

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112012006458

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112012006458

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20120322