Plug installation system for deep water subsea well

A plug retrieval and installation tool is used with a subsea well having a production tree, a tubing hanger, a passage that extends vertically through the tubing hanger and the tree, and a plug located within a plug profile in the passage within the tubing hanger. The plug retrieval device has a housing and connector that is lowered on a lift line onto the upper end of the tree. An axially extensible stem in the housing is driven by drive mechanism into the production passage of the tubing hanger. A retrieval member mounted to the stem engages the plug and pulls it upwardly in the passage while the stem is being moved upward. The connector, drive mechanism and retrieval member are powered by an ROV

Capstan Reel Installation System-CRIS

The CRIS is a sophisticated new product that will address the risk, safety and cost factors of offshore installations as production moves to deeper waters,

With the CRIS, the installation tower and relevant tensioner clamps on a vessel are replaced by a reel that uses the capstan principle to ensure controlled installation. This significantly reduces the risk of damaging the riser, ensuring simpler, faster and safer product installation, without the need to work at great height. It also allows for simpler vessel architecture and the possibility to design multi-purpose installation vessels.

Subsea Systems Installing

http://www.magnum-ss.com/Equip_Video.html

Saipem 7000 Delivers Statoil’s Gudrun Platform Topsides

The world’s second largest crane vessel was contracted this week by Statoil to lift and transport the 10,600 ton topsides module into position atop the Gudrun jacket in the Norwegian North Sea.   The vessel departed Aibel’s shipyard in Haugesund and arrived on station 25 hours later

.

TITAN 200 Deep Offshore Platform

Titan Platform: The basic Titan Platform design is easily capable of deployment in 200 ft of water depth, which enables the turbines to operate far offshore with the flexibility to be redeployed in its rated water depth any where. In the oilfield platforms of the jackup design operate in 600 ft of water and in the worst storm conditions in the world.

for more info

http://offshorewindpowersystemsoftexas.com/titan_200_deep_offshore_platform

video of Offshore platform installation in Gulf of Thailand

http://www.heavyliftspecialist.com/cranes/offshore-platform-installation-gulf-thailand/#!

World Seismicity Map

Volcanic structures on the Earth's surface

This map shows the location of active, inactive, and extinct volcanoes THROUGHOUT the world. Each single volcano is shown as a single, triangle network. In many places in the world, there are so many volcanoes in a small area That They Appear on this map as a cluster instead of single triangles. These areas include the Andes Mountains in South America, Iceland in the North Atlantic Ocean, the Philippine Islands, and the East African Rift Zone. Although some volcanoes are extinct or Have Not erupted in recent times, These areas still exhibit May tectonic activity as the magma below (or the crustal plates) shift in geologic time. Generally, there is a strong relationship Between where the volcanoes are, and where tectonic activity on Earth Occurs, at subduction zones, divergent boundaries, transform boundaries, and "hot spots." From this map, it is easy to see the famous "Ring of Fire" that encompasses Most of the Pacific Ocean, where the boundaries of this subduction zones Comprise ocean in the east, north, and west, to transform boundary in California, and a deep trench formation south of the Islands of Japan.

http://earth.rice.edu

http://www.geog.ucsb.edu

Deep Green Technology

Deep Green´s Advantages

• Site characteristics monopolyDeep Green is the only known power plant that cost-effectively produces electricity at sites with velocities between 1.2-2.5 m/s and depths between 60-120 meters.

• High EfficiencyDue to the unique characteristic of increasing the relative flow Deep Green is the most cost effective power plant on the market today.

• Small in size and lightweightThe plant weighs only seven tonnes which is 10-25 times less per MW than competing technologies which are designed for tidal flows above 2.4m/s.

• Low-cost offshore operationsSmall boats and equipment are used for installation, service and maintenance. The offshore operations are minimised since only attachment and detachment has to done offshore.

• Efficient manufacturingSize, weight and modularity of Deep Green offers the possibility of lean manufacturing.

• Utilisation of ocean currentsThe ability to be efficient at low velocities makes Minesto´s Deep Green the only technology to be cost-efficient in both tidal and ocean currents.

• Predictable electricity productionTides are generated by the relative motion of the Earth, Sun and Moon, which can be calculated with almost 100% accuracy. Ocean currents are nearly constant.

• Minimal visual and environment impactDeep Green operates completely submerged at least 15 meter below the water surface.

http://minesto.com/

Iranian Association of Naval Architecture and Marine Engineering

دانلود مقالات انجمن مهندسی دریایی ایران درادامه مطلب

منبع :http://ijmt.ir

م

ادامه نوشته

1000+ MOOC/Free College Courses Online - Video Tutorials

http://freevideolectures.com/free-college-courses-online/#

Zones of the Ocean

Classification of the Marine Environment

1. Classification by light
• Photic and aphotic
• Phytoplankton need light to photosynthesize and can only thrive in the photic zone
• Zooplankton (animals) and bacteria do not need light and inhabit the oceans down to the deep-sea floor
2. Classification by location
• Water and sea floor divided into specific zones: benthic & pelagic
• By water depth divided into coastal, neritic, oceanic
• Each has distinct physical and chemical characteristics
• Each supports different organisms

Capacity Analysis Program for Offshore Structures

CAPFOS, Inc. specializes in developing computer solutions to predict ultimate resistance capacities of offshore marine structures under wave, current, wind and earthquake load conditions. CAPFOS' flagship software product, CAP (Capacity Analysis Program) evaluates nonlinear static and dynamic analysis, wave, earthquake, and wind loadings, and pushover/failure analysis.

Types of Offshore Structures Analyzed

• Jackets
• Mooring lines
• Compliant towers
• Risers
• Tension leg platforms
• and more

http://capfos.com

تحلیل پوش اور Pushover Analysis

به منظور بررسی عملکرد ساختمانها در هنگام زلزله باید تحلیل غیر خطی صورت گیرد و تغییر مکانها، محل تشکیل مفاصل پلاستیک و نحوه توزیع آنها مشخص شود. در روش طراحی لرزه ای بر اساس عملکرد سازه برای سطوح مختلف عملکرد مورد انتظار، مرتبط با سطوح مختلف خطر زلزله طراحی می گردد. یک گام مهم در طراحی لرزه ای بر اساس عملکرد، تخمین پاسخ لرزه ای غیر خطی سازه ها می باشد. برای این منظور دو روش وجود دارد:
تحلیل تاریخچه زمانی غیر خطی و تحلیل استاتیکی غیر خطی (تحلیل بار افزون). تحلیل بار افزون دارای مشکلات مربوط به تحلیل دینامیکی غیر خطی نبوده و با انجام آن می توان با استفاده از طیف پاسخ به عنوان منحنی نیاز، تخمین مناسبی از پاسخ لرزه ای سازه بدست آورد.

پوش‌آور یك روش تحلیل غیرخطی استاتیكی است كه در آن مقدار بارگذاری سازه بر طبق الگویی از پیش تعیین شده به طور تدریجی (پله‌ای) افزایش می‌یابد. با افزایش مقدار بارگذاری، اتصالات ضعیف و مودهای شكست سازه پیدا می‌شوند. بارگذاری یكنواخت و به طور پریودیك بوده و بارگذاری معكوس با استفاده از ضوابط نیرو-تغییرشكل اصلاح شده و با تقریب میرایی، تخمین زده می‌شود.


روش تحلیل غیرخطی استاتیكی پوش‏ آور در نرم‌افزار SAP2000

http://www.mycivil.ir/forum/attachment.php?aid=3917
مقاله مرتبط

http://confbank.um.ac.ir/modules/conf_display/conferences/5ncce/1695.pdf
آموزش مفاهیم

http://www.mediafire.com/1yg2qintqby4dcj
در ANSYS

http://confbank.um.ac.ir/modules/conf_display/conferences/5ncce/619.pdf
چگونگي رسم نمودار دوخطي حاصل از تحليل پوش اور در اکسل

http://www.iransaze.com/modules.php?name=Forums&file=download&id=30634
فیلم آموزشی تحلیل پوشhttp://www.mycivil.ir/link/?Pushover_V14S-mycivil.ir.rar

Top 25 Most Downloaded Articles in 2013. Free Access - ELSEVIER

Celebrating great researchElsevier presents the 25 most popular articles of the first half of 2013 from Elsevier published journals in Civil and Structural Engineering. The Top 25 Articles 2013 are ranked in order of the number of full-text downloads they received from the ScienceDirect platform during the period of Jan- Jun 2013

ادامه نوشته

Pacific Tsunami Warning Center

http://ptwc.weather.gov/

Seismomatch

1-این نرم افزار مقادیر رکورد زلزله زمان-شتاب رو میگیره و برای اونها طیف پاسخ حساب میکنه. مشابه همونکاریکه در نرم افزار SeismoSignal انجام میشه.
2-بعد طیف این زلزله ها رو با طیفی اصلی داده شده Match میکنه. این طیف میتونه به صورت فایل داده بشه و میشه طیف آیین نامه 2800 رو بهش داد.
3-بعد از Match شدن، رکورد زلزله Match شده به صورت خروجی برای استفاده در تحلیل تاریخچه زمانی داده میشه.
iransaze.com
http://www.seismosoft.com/en/Download.aspx

دانلود پروژه کامل در مورد تحلیل دینامیکی سازه ها به روش تاریخچه زمانی و طیفی

این پروژه بسیار ارزشمند با عنوان بررسی و آموزش مراحل آماده سازی شتاب نگاشت ها برای تحلیل دینامیکی سازه ها، به روش های آنالیز تاریخچه زمانی و طیفی انجام شده که در ادامه فایل این تحقیق و نتایج خروجی ها و فایل های نرم افزار های مورد نیاز و فایل اکسل آن بصورت کامل برای دانلود قرار داده شده است

http://icivil.ir/short/?shetab-negasht9110

اموزش با نرم افزار  SAP2000 :

https://www.dropbox.com/s/ge9285f83a5grjb/Response%20Spectrum%20Analysis%20in%20SAP2000.pdf

اموزش با نرم افزار ANSYS :

http://www.iransaze.com/modules.php?name=Forums&file=download&id=38837

فیلم اموزشی Seismosignal :

http://uploading.com/files/f958m5b2/Seismo%2BSignal.rar

http://www.seismosoft.com/Public/EditorUpload/Flash/SeismoSignalv5.1_GettingStarted.swf

2010 PEER Ground Motion Database - BETA Version

The latest version of the PEER Ground Motion Database contains 3182 three-component recordings of 104 shallow crustal earthquakes compiled from over 1000 stations

.

http://peer.berkeley.edu/peer_ground_motion_database/peer_ground_motion_database_users_manual.pdf

دانلود سری مقالات گرایش سازه دریایی

لطفا ادامه مطلب مشاهده شود :

ایران سازه

ادامه نوشته

Deep Green – For Electricity Generation from “Slow” Ocean Currents +Video

Parts

Deep Green consists of a wing (1), which carries a turbine (2) directly coupled to a generator in a nacelle (3). A rudder (4), a servo and control system steers the kite in an 8-shaped trajectory. The struts (5) are connected to the tether (6) which attaches the kite to a swivel fastened to a foundation on the seabed. The tether accommodates power and communication cables.

The 'kite', with a wing span of 12 meters, has a capacity of 500 kW and can make the water go through the turbine at a speed of 16 m / sec at a current velocity of 1.6 m / sec

video link

http://www.youtube.com/watch?feature=player_embedded&v=1qCDRj8TE9Y

More information

http://minesto.com

لینک ماه نوامبر , Offshore-mag

http://digital.offshore-mag.com/offshoremag/201311/?pg=1&pm=2&u1=friend

Mechanical Engineering Professor Wins Award to Test Tetherd Subsea Kites

A mechanical engineering professor Worcester Polytechnic Institute (WPI) has received an award from National Science Foundation (NSF) to explore the use of tethered undersea kites to generate electricity from tides and currents

ادامه نوشته

VIDEO: Fukushima Floating Offshore Wind Power Project

Japan is speeding up with the development of its floating offshore wind projects, in an aim to move away from nuclear power and shift to renewables.
Recently, a floating wind turbine of 2MW capacity started generating power near Nagasaki prefecture.
In Fukushima prefecture, a group of 11 companies, headed by Marubeni Corporation have installed a 2MW floating turbine. The electricity generated will be transferred through an undersea cable to the seashore, and then transmitted to Tokyo by the existing grid lines. Two further 7-megawatt floating offshore turbines are planned to be constructed at the same location in 2014.
Also, Japanese authorities are working to support the development of offshore wind in the country.The following video shows the experimental floating offshore wind project in Fukushima:
http://www.youtube.com/watch?feature=player_embedded&v=KFRkrU8lIbI

OSM Offshore Enters New Contract with Statoil

OSM Offshore has agreed to enter into a 6 years contract with Norwegian energy company Statoil Petroleum AS to operate the Heidrun FSU.
The Heidrun FSU is currently being built by Samsung Heavy Industries at the world’s second-largest shipyard in Geoje Island, Republic of Korea and is expected to be on location at the Heidrun field in the first half of 2015.The contract between OSM Offshore and Statoil Petroleum for full management of the Heidrun FSU is a long-term contract with options for further extension until 13 years.
The Heidrun FSU will be permanently connected to a buoy, and the oil will be lifted from the FSU by use of shuttle tankers. The FSU will be permanently manned and has an expected design life of 30 years.

UK: Alstom’s Tidal Device Produces 100MWh

.Alstom’s full-scale tidal device installed at the European Marine Energy Centre (EMEC) in Orkney, Scotland, has now injected over 100MWh of electricity into the grid 

This is a major milestone in the development of Alstom's tidal stream device which follows the earlier connection of the turbine to the grid and the progressive ramp up to full nominal power of 1MW over the past months.
 "These successful milestones with Alstom's tidal turbine are reinforcing our customer's confidence in our technology and in our ability to propose a reliable machine to the market. With these tests Alstom is becoming one of the key stakeholders of the tidal stream market ", stated Alstom New Energies Senior Vice-President Jacques Jamart.
The latest technical milestone is part of the ReDAPT 1 testing program which aims at demonstrating the performance of the machine in different operational conditions. Thanks to the generation of 100MWh of electricity, it is building confidence in the endurance of the machine, and in its reliability. In addition, with autonomous runs without interruption, the machine has demonstrated its ability to efficiently operate independently.
Alstom's tidal technology has unique technical characteristics 2 which allow to minimise installation and maintenance costs: the buoyancy of the turbine enables the nacelle to be easily towed to and from the point of operation and attached to its pre-installed foundation. This reduces the time and costs needed to install or retrieve the turbine and avoids the need for specialist vessels and divers.
Tests will continue at Orkney in different operational conditions into 2014, to demonstrate further autonomous running capabilities and efficiency of the turbine while generating electricity to the grid. These testing campaigns will be followed by other tests including deployment in pilot farms before the start of full commercial production.

OPT and MES to Commercialize PowerBuoy

Ocean Power Technologies, Inc. (“OPT” or the “Company”) and Mitsui Engineering & Shipbuilding Co., Ltd. (“MES”) today announced that they have signed a new agreement to cooperate in the development and commercialization of OPT’s PowerBuoy

.Building on the successful work previously done together by the companies, this agreement sets forth the terms of technology licensing and other financial arrangements between MES and OPT regarding OPT's PowerBuoy systems. Under the terms of the agreement, MES has the licensed right to sell OPT's PowerBuoys for both grid-connected utility and autonomous applications in Japan, the Philippines, Malaysia, Vietnam, Mozambique, South Africa and Namibia

راهنمای روش ها و شیوه های بهسازی لرزه ای ساختمان های موجود و جزئیات اجرایی

• راهبردهای مقاوم سازی
• راهکارهای اصلاح موضعی اجزاء سازه ای
• حذف و یا کاهش نامنظمی در سازه
• افزایش مقاومت و سختی جانبی سازه
• کاهش جرم
• جداسازی لرزه ای در بهسازی سازه ها
• میراگرها در بهسازی سازه ها
• بهسازی لرزه ای ناسازه ها

26 عنوان کتاب ساحل و فراساحلی

1- دینامیک سازه های فراساحلی / لطف اللهی یقین؛ حمید احمدی؛ محمد رضا شیدایی / دانشگاه تبریز
2- روش های ساخت موج شکن / کرامت نصیری راد / فدک ایساتیس
3- مدلسازی امواج دریاهای ایران / - / سازمان بنادر و دریانوردی
4- هیدرودینامیک / امیر خسروجردی / دانشگاه آزاد واحد علوم و تحقیقات
5- هیدرودینامیک / خسرو برگی / دانشگاه تهران
6- تاثير معيار زلزله در طراحي سازه اي فراساحلي براساس استاندارد 19901-2 / جمشيد قضاتي / رهنگاشت نوين
7- تحليل ارتعاشي سکوهاي آبهاي عميق / محمد رضا تابش پور / فدک ايساتيس
8- سازه هاي دريايي ويژه / رضا طيبي؛خسرو برگي / جهانگير
9- سازه هاي دريايي / محمد سعيد سيف / دانشگاه هرمزگان
10- سکوهاي دريايي / علي اکبر گل افشاني / وزارت فرهنگ
11- کتاب آبي:راهنماي صنايع ساحلي و فراساحلي / حميد آغالر / مربع آبي
12- مباني طرح و اجراي سازه هاي دريايي / سيامک هوشيار خوشدل / فدک ايساتيس
13- مقدمه ای بر سازه های دریایی:طرح و نصب / مهری / وزارت نفت
14- مهندسی سازه های فرا ساحل / نعیم نوری سمیع / ایرانیان خارج از کشور
15- مهندسی سواحل ، بنادر و سازه های دریایی / کبیر صادقی / دانشگاه شهید عباسپور
16- مهندسی کاربردی سازه های فراساحل / محمد رضا تابش پور / فدک ایساتیس
17- خوردگی سازه های دریایی / رضا مظفری نی / دانشگاه مالک اشتر
18- اصول طراحی بندر / نعیم نوری سمیع / جهاد دانشگاهی
19- اصول طراحی سازه های ساحلی / وحید چگینی / موسسه ملی اقیانوس شناسی
20- دستور العمل پروژه های هیدروگرافی در رودخانه و سواحل / کاظم سیدعلیخانی / آبنگاه
21- راهنمای طراحی موج شکن ها / وحید چگینی / جهاد تحقیقات آب و آبخیزداری
22- راهنمای کاربرد سنگ در موج شکن / مهدی شفیعی فرد / وزارت راه
23- روش های حفاظت از سواحل / علی کرمی خانیکی / سازمان تحقیقات کشاورزی
24- سواحل ایران / علی کرمی خانیکی / سازمان تحقیقات کشاورزی
25- فرهنگ تشریحی مهندسی سواحل و فیزیک دریا / وحید چگینی / موسسه ملی اقیانوس شناسی
26- ژئوتکنیک دریایی / محمد علی روشن ضمیر / جهاد دانشگاهی

معرفی کتاب

کتاب مهندسی کاربردی سازه‏های فراساحلی تألیف دکتر محمدرضا تابش‏پور

در 222 صفحه و به قیمت 12 هزار تومان از سوی دانشگاه صنعتی شریف منتشر شده است.