The design includes significant obsolescence management features. This chapter discusses four parts of subsea engineering. Reliability assessment of subsea control module and xmas. The subsea control module is the core equipment of the subsea production system, and its electrical control system plays a large role in the failure modes of the subsea control module. Sep 11, 2017 overview of subsea production systems. Subsea highspeed control system closing the control loop subsea. The scmmb is the interface between the scm and the subsea christmas treemanifold valves and remote sensors. New interface protocols drive communication efficiencies. The design includes significant obsolescence management features for electronic components, as well as ruggedization features extensively qualified over and above the. A subsea control module consists of three primary sections.
Subsea control module sea has developed a new low cost and short leadtime subsea control module to extend the life of marginal developments and latelife fields in the oil and gas sector. These, whilst initially adapted and evaluated for subsea use, did. Subsea instrumentation interface standardization in the offshore oil and gas industry david saul. Equipment used below the waters surface must be rugged and reliable in order to meet the process demands and protect the environment. The subsea control module and production tree are generally located in a remote location relative to the surface control equipment. Utilising the sea subsea electronics module sem as the key component, the scm provides an innovative, low cost, rugged, and reliable alternative to. Subsea highspeed control system closing the control. Every product supplied is still supported in the field and clients are updating equipment over 15 years old, still in full operation today. A subsea control module for coupling to a subsea well installation comprising.
Pdf installation and docking technology of control. Proservs electrohydraulic subsea control module scm is a modular design concept incorporating wellproven technology and qualified components to. Not only does it provide the needed control, but, more importantly, it enables feedback of important process information. Redundant supplies of communication signals and electrical and hydraulic power are transmitted through umbilical hoses and cables ranging from ft to several miles in length, linking surface equipment to subsea. A subsea control module system 10 comprising control modules 20, 30 for controlling a subsea device 2.
Aker solutions offers an extensive portfolio of subsea production systems and products with technical capabilities to optimize the field life and production profile for our clients. The subsea control module scm is a lowcost multiplex electro. The design allows for replacement and retrieval of a subsea control module with a single remotely operated vehicle rov deployment from a vessel. Th and ls control pod the riser control module rcm and the landing string accumulator module lam will sit within the vessel marine riser system and be used. Drilquips subsea electronics module sem is the intelligence hub of the subsea control module.
Switching to a modular subsea system like the master control station comes with benefits that include. A subsea control module for providing control of subsea equipment is provided. This system once more uses a subsea control module scm, but this time fitted with electrically energised directional control valves with no. Reliability assessment of subsea control module and xmas tree configurations view consultancy project executed download chess engineering virtual office assistance evoa engineering support services on pdf subsea.
The integrated system provides the requisite monitoring, control and shutdown functions for subsea production wells, injection wells, manifolds, pipeline. The subsea control module controls the electrohydraulic supply to the subsea valves both directional control valves and external safety valves system safety engineers evaluate the sis and the sif architectures according to standard and system requirements. Subsea instrumentation must be accessed and installed subsea to read the desired parameters and to transmit this information without breakdown or failure over the life span of the subsea production installation. Sam is used to improve the hydraulic performance of the subsea control system in trees and manifolds. Semstar5 subsea electronics module design heritage combined with subsea experience. Smart well sliding sleeve technology implementation well dynamics smart completion and subsea control functionality well dynamics smart completion showing the two sliding sleeves on the left with the packers that isolate the production zones. Bp exploration operating co ltd eptg offshore systems team, sunbury uk the adoption of the canopen fault tolerant standard by the subsea instrumentation interface standardisation siis joint industry project was agreed by the siis panel in. Early involvement in the subsea arena begun for proserv in the 1980s with the design and prototype manufacture of our own subsea control module, using our in house spooltype control valves.
The lower portion contains a subassembly containing electrooptical couplings with direct sealed passages and wiring to a dry electronics chamber. Pdf the production control system provides control of all functions of the subsea production system. In addition to our existing single port and differential subsea control module scm sensors designs, we are now offering our new mini pod sensor for use on subsea manifold systems where system and safety critical hydraulic pressure sensors are required. Shallow water subsea control module sw scm economic modular design 6 subsea production controls shallow water subsea control module diveroperated latch mechanism powersignal electric connector subsea electronics module vent circuit transistor barrier subsea hydraulic filter lift mechanism dc200 dialectric. Extending the life of obsolete and unsupported subsea. Specialized equipment such as umbilical reels, hydraulic power units hpus, and winches are used to enable hydraulic and electrical control of subsea trees and related hardware. This work aims to perform a quantitative and qualitative reliability study in a key and complex asset which is part of the subsea production system, the subsea control module scm. Hydraulic solution for subsea infrastructure mounted applications. Pdf intelligent subsea control eliezer colina academia. Pdf installation and docking technology of control module. The subsea instrumentation interface standardisation siis network today announces the release of its recommended practice and standard text for inclusion in api17f, the american petroleum institutes api. Generations of subsea control system challenges and solutions.
With the demand for oil and gas, exploration and production has moved to the harsh environment of the worlds oceans. A header includes several onoff automatic block valves, which coordinates and directs flow to one or several destinations based upon the set point directed to the header control module. A control module is a collection of sensors, actuators and basic control logic that acts as either a regulating device, a stateoriented device or a combination that is operated as a single device. It acquires data from subsea sensors and provides control of the completion system through valve actuation. The subsea control module scm is a lowcost multiplex electrohydraulic solution for subsea infrastructure mounted applications. Semstar5 is our fifthgeneration subsea electronics module for production control systems it draws on design heritage and learning from over 25 years of subsea experience. It is usually a welded structure, bolted and earth bonded to the frame of a subsea tree or manifold. Subsea control valve steplees subsea qualified 3000m biffi actuator kent introl valve. The modular programming concept of our subsea master control station simplifies the processes of moving, renaming and testing subsea wells, all of which could take up to a number of weeks without integrated topside and subsea systems. The module is microprocessorbased 16 bit for an optimal combination of capability, reliability and simplicity.
The design incorporates pressure compensation for depths down to 9,850 ft 3,000 m and can be provided in fixed or retrievable configurations. The subsea control module can provide distributed electrical and hydraulic control functions via multiple directional control valve modules, multiple pilot valve. Subsea master control station mcs yokogawa america. Generations of subsea control system challenges and. Subsea control systems and their related ancillary equipment are critical to supporting the evolution of existing and new technologies that can be placed on the seafloor. Cobrahead the production control system consists of topside controls, subsea control module scm power equipment, subsea control modules scm and sensors as well as subsea electrical and hydraulic distribution equipment.
Scm subsea control module sps subsea production system 1 introduction with the increasing number of deep offshore production wells, it becomes more and more essential to develop, test and qualify new hydraulic control fluids with enhanced temperature and pressure ranges, but also with the capability of avoiding hydrate formation in subsea control. The topic reliability study of subsea control module with focus on statistical methods was chosen and the thesis is written with the guidance of my supervisor professor anne barros at the department of reliability, availability, maintainability and safety. Bp exploration operating co ltd eptg offshore systems team, sunbury uk. Subsea accumulator module sam the sam, illustrated in figure 3, is the subsea unit that stores hydraulic fluid such that adequate pressure is always available to the subsea system even when other valves are being operated. The roxar subsea rov retrieval system has been designed for simple retrieval of existing monitoring. Pdf on jan 1, 2018, lan zhang and others published installation and docking technology of control module for subsea production system. Proservs electrohydraulic subsea control modules scms are a modular design concept and incorporate wellproven technology and qualified components to minimise both capex and opex costs. Semstar5 subsea electronics module baker hughes, a ge. This paper firstly explained the working principle of subsea control module scm and function and performance of the electrohydraulic control valves, and then mathematical model of the electrohydraulic control valve in scm was analyzed.
Site received test for subsea control module valve. A subsea production system provides a way to produce hydrocarbons from areas not economically or easily developed by the use of an offshore platform. One of the modules 20, 30 is an electric power control module 20 comprising a connection interface 22 with stab mate connectors 22a and further comprising a communication unit 25 for communication with other control modules 20, 30 and with the subsea device 2, and an. Four variations of the standardized hpu design are available. A control module is a collection of sensors, actuators, other control modules and associated processing equipment, which is operated as a single entity. Chess subsea engineering uk limited is registered in england registration number 9616564 and having its registered office at london, erith, kenth, dzda18, united kingdom.
Extending the life of obsolete and unsupported subsea control. New interface protocols drive communication efficiencies between subsea control modules and subsea sensors 14 march, 2017 14 march 2017. Scm subsea control module scmmb scm mounting base scr subsea control room scu subsea control unit sdu subsea distribution unit sem subsea electronic module spcu subsea power and communication unit tt temperature transmitter tutu topside umbilical termination unit ups uninterrupted power supply 1. Zetechtics builds the success of its business on a number of factors from the people we employ, to the high standards of design, testing and manufacture. Achieving this goal will result in subsea mateable interfaces as used in subsea control systems, which do not require predefinition in terms of the instrumentation to. Top deliver products to the oil and gas industry, both as an agent and tops own products.
An approved continuing education provider pdhonline course e443 4 pdh introduction to subsea engineering for electrical engineers anthony k. Reliability assessment of subsea control module and xmas tree configurations view consultancy project executed download chess engineering virtual office assistance evoa engineering support services on pdf subsea field development engineering support. The subsea technology used for offshore oil and gas production is a highly specialized field of application that places particular demands on engineering. Site received test for subsea control module valve subsea.
Drilquips multiplex control system is a key component of the subsea control system that allows for control and monitoring of over fifty wells, and provides realtime access to tree functions, tree equipment status and sensors monitoring reservoir performance. These, whilst initially adapted and evaluated for subsea use, did not show the degree of durability of the metal to metal shear. The scm is compact and highlyconfigurable, providing reliable control and monitoring of subsea valves and instrumentation. Techni deliver services within product development and design.
Highspeed control valve stepless operation time 0100% subsea electronic module with. An iwocs is a temporary control system used to commission, workover, troubleshoot, or decommission subsea wells. Siis subsea instrumentation interface standardisation is a joint industry partnership jip with a goal of moving towards an open standard for subsea instrumentation. Initial subsea control system used inductive electrical couplers, which was a theoretically good. Subsea control module scm these modules control trees andor manifold valves, as well as collecting and transmitting subsea data to the master control stations. Reliability study of subsea control module with focus on. Bp amoco subsea control system lessons sage journals. The topic reliability study of subsea control module with focus on statistical methods was chosen and the thesis is written with the guidance of my supervisor professor anne barros at the department of reliability, availability, maintainability and safety rams, faculty of production and quality engineering. Study on hydraulic system of test stand for subsea control module.
Subsea instrumentation interface standardization in the. The hydraulic power unit for subsea systems is usually located topside. Subsea production control systems baker hughes, a ge company. The test board was designed according to characters of hydraulic system of the test stand. The vertical face on the side of the scmmb is the interface with the incoming connections. Pdf installation and docking technology of control module for. The typical scm receives electrical power, communication signals, and hydraulic power supplies from surface control equipment. Like our dt19 series differential pressure transmitters, the new miniature. The topic reliability study of subsea control module with focus on statistical methods was chosen and the thesis is written with the guidance of my supervisor professor anne barros at the department of reliability, availability, maintainability and safety rams, faculty of pro. As deeper the oil and gas production goes more important the remote monitoring and control of the subsea assets become, and more reliable they need to be. Subsea control module mounting base scmmb oilfieldwiki. First world wide subsea raw seawater injection system in. Site received test for subsea control module free download as powerpoint presentation. A control module can have other control modules within it.
Introduction to subsea engineering for electrical engineers. Subsea control module sea the lombard centre kirkhill place, dyce aberdeen ab21 0gu. There are many types of subsea control modules, but. Subsea control unit add additional control lines to your system the subsea control unit combines premium hydraulic control valves with the interface of the most common subsea electrical connectors. Redundant supplies of communication signals and electrical and hydraulic power are. The lower portion consists of a plate for carrying hydraulic couplings and hydraulic passages from valves to couplings. Subsea electronics module our rugged subsea electronics module sem is designed for installation in our modular subsea control systems.
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