Abstract:
A system of exploiting a subsea hydrocarbon reserve, comprising a wet-trees process or a dry-trees process extracting hydrocarbon reserve from production wells (40) on the seabed, establishing a production riser (30) for transferring hydrocarbon reserve from the production wells (40) to a host platform and/or a floating production storage offloading unit characterized in that: a) the wet-tree process comprises of host platform (210) and/or floating production storage offloading unit (10) wherein said host platform (210) and/or floating production storage offloading unit (10) contain at least two modular processing units (20), topside of which are connected in series located on the host platform (210) and/or the floating production storage offloading (FPSO) unit (10); b) the dry-tree process comprises of host platform (310) extracting hydrocarbon reserve from seabed production wells (40) via production riser (30) and said host platform (310) contains a plurality of dry-tree unit (320) extracts fluids from production wells (40) to process trains (60) located on the host platform (310); at least two modular processing units (20), topsides of which are connected in series located on the host platform (310); wherein the modular processing units (20) connected in series separate the hydrocarbon reserve into its different components and; the wet-tree process also includes a system integrated between both hydrocarbon processing system (100) and hydrocarbon processing system (200).
Abstract:
A control system of modular seabed processing unit (100) using one of a process module as a test separator comprising a system-module (110) to which external lines are connected, the system-module (110) includes a first portion (31) of the system-module isolating and connecting means (30), for acting on received fluid. At least one inlet flow line (21) and at least one outlet flow line (81) being connected to the first portion (31) of the system-module isolating and connecting means (30) for selective isolation of system-module from, or connection of the system-module to the external flow lines by means of a second complementary portion (32) of a manifold (130). The connecting means (30) with which the first portion (31) of the system- module isolating and connecting means (30) is adapted to engage. The system-module includes control means (60) for controlling operation of the system-module characterized in that the system-module (110) includes at least one actuating means (121) connected to a control means (60) wherein the actuating means (121) of the system-module (110) associated with diverter valve (131) situated at a manifold (130). The diverter valve (131) is connectable and disconnectable to fluid carrying conduits from production well (160, 170) and is enabled to control the direction of fluid flow into the system-module. The control means (60) is in communication with a master control station (150). The temperature and/ or pressure measuring means (61, 62, 63, 64) and valves (36, 37) connected to control means (60) by control line (65) which is adapted to transmit process values to a host platform (140) and to receive the control signals from the host platform (140) via umbilical (80) through a power connector (70). Sensing means to measure pressure, temperature and flow parameter; and the um means 54 to boost the fluid to host 81 via outlet flow line (23).
Abstract:
A single well development system has a base structure (8) through which the well is drilled and completed by means of a wellhead (6). A retrievable Christmas tree module (10) containing a Christmas tree (12) connected to a wellhead connector (14) is mounted on the base structure (8) by the wellhead connector (14) so as to receive well fluid from the wellhead. The module (10) contains two fluid processing separators (16) for processing fluid received from the well via the wellhead (6) and the Christmas tree (12). In a modification, additional modules are mounted on the base structure and each additional module has a fluid processing separator (16), and the Christmas tree module routes production fluid to the separators via the base structure (8).
Abstract:
A pressure protection system (32) has a docking manifold (44) to which an upstream portion (36) and a downstream portion (38) of a pipeline (34) are connected. Also connected to the docking manifold (44) is a retrievable module (64) which has a conduit circuit (66) that connects the upstream and downstream portions of the pipeline (34) enabling fluid to flow between the two portions (36, 38). The conduit circuit contains two fail-safe valves (72) which are controlled by a control module (80) within the retrievable module, and two pressure transmitters (76) co-operable with the control module (80). When wither pressure transmitter (76) senses fluid pressure in the conduit circuit (66) to be above a threshold value then it causes the control module (80) to effect closure of the valves (72) preventing the pressure rise from reaching the downstream portion (38) of the pipeline (34).
Abstract:
A mixture of fluids is conveyed from a hydrocarbon reservoir and comprises gas and slugs of liquid. The mixture is passed through a slug catcher vessel (12) which temporarily retains the slugs of liquid. The gas is passed through a gas compressor (18) and the resulting pressurised gas is then conveyed to a remote location. When a liquid slug is detected in the slug catcher vessel (12), liquid is drawn from the vessel by an injector device (24) and entrained into the flow of gas downstream of the gas compressor (18) until the level of the interface between the gas and liquid in the vessel reaches a sufficiently low level. The system may alternatively be configured to accommodate a flow of liquid containing slugs of gas.
Abstract:
Method and apparatus for assisting the flow of production fluid from a hydrocarbon wellbore (4) to a remote host facility (16) including a separation facility (6) situated close to the wellbore (4). Jetting fluid is supplied initially from the host facility (16) to a downhole jet pump (14) via the separation facility (6) for assisting the flow of production fluid from the wellbore (4) to the separation facility (6) where the resulting mixture enters one of two parallel gravity separation chambers (32). Separated jetting fluid (60) is recirculated to the jet pump (14) via a pump (38) and production fluid is routed to the host facility via a production pipeline (18). A jetting fluid supply pipe (20) can be of relatively small diameter and the production pipeline (18) does not have to be enlarged to accommodate jetting fluid returned to the host facility (16).
Abstract:
A system for controlling the operation of devices (61, 62, 63) of a hydrocarbon production system has two reprogrammable central controllers (100) contained in a retrievable module (49a) of a seabed facility (20') associated with a hydrocarbon field (170). Local controllers are configured to control the operation of specific devices, such as actuators (61), sensors (62) and valves (63) within the module (49a) and within tree wellheads (30') of the field (170) and are locally connected to these devices (61, 62, 63). A single common data bus (130) links the central controllers (100) and the enables data to be transmitted in response to the central controllers (100) receiving signals.
Abstract:
An underwater system (1) has a hydrocylone (5) for separating sand from seawater, and a pump (8) downstream from the hydrocylone (5) for drawing seawater upstream of the hydrocylone into the hydrocylone. The sand separated from the seawater is collected in a sand storage device (6) below the hydrocyclone. The pump (8) pumps the seawater from which the sand has been removed into a water injection well (16) and a portion of the seawater is diverted into a sand extraction device (7) beneath the sand storage device (6) to flush away the sand collected therein.
Abstract:
A system (1) for extracting subsea hydrocarbon fluid has five discrete subsea developments (10, 12, 14, 16, 18) for hydrocarbon extraction linked to four hydrocarbon receiving facilities (2, 4, 6, 8) by a pipeline network (94). Each subsea development (10, 12, 14, 16, 18) has a manifold to which pipelines of the network (94) are connected, and a pair of retrievable modules (22) docked on the manifold. Each module has a control pod which is able to control flows of fluids between the subsea developments and between the subsea developments and the receiving facilities, and each control pod is connected to monitoring devices for monitoring parameters pertaining to the subsea developments. Parameters are monitored at a first one of the subsea developments and a requirement for a first fluid type is identified and parameters at another second one of the subsea developments are monitored and a surplus of the first fluid type is identified. The relevant control pods are then operated to enable a quantity of the first fluid to be conveyed from the second to the first subsea development via the pipeline network (94).
Abstract:
A system for controlling the operation of devices (61, 62, 63) of a hydrocarbon production system has two reprogrammable central controllers (100) contained in a retrievable module (49a) of a seabed facility (20') associated with a hydrocarbon field (170). Local controllers are configured to control the operation of specific devices, such as actuators (61), sensors (62) and valves (63) within the module (49a) and within tree wellheads (30') of the field (170) and are locally connected to these devices (61, 62, 63). A single common data bus (130) links the central controllers (100) and the local controllers and enables data to be transmitted between the central controllers (100) and the local controllers in response to the central controllers (100) receiving signals. Each local controller has a microprocessor for processing the data transmitted to it, and the processed data is transmitted between the local controller and its associated devices (61, 62, 63) in accordance with the processed data so as to locally control the operation of those devices.