<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>DOUBLE-HULL DRILLSHIP, AUTOMATED DRILLING, IMPROVE OPERABILITY</title>
      <link>https://trid.trb.org/View/486857</link>
      <description><![CDATA[Structural design innovations and automated pipe handling equipment will improve the operability of a next-generation, ultra-deepwater drillship. A double-hulled, fully automated drillship being built for Conoco Inc., and R&B Falcon Corp. is nearing completion and slated for sea trials in August 1998. It should begin service in December 1998 when it will be committed to a 5-year, $400 million drilling program in the Gulf of Mexico. This is the first of two near-identical vessels that will be involved in Conoco's ultra-deepwater projects around the world. When finished, the 721-foot long, 140-foot wide, and 66-foot deep vessel will be weighted at 103,000 dwt.]]></description>
      <pubDate>Thu, 11 Jun 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/486857</guid>
    </item>
    <item>
      <title>CASE HISTORIES SHOW REAL-TIME INFORMATION REDUCES UNCERTAINTY</title>
      <link>https://trid.trb.org/View/486850</link>
      <description><![CDATA[This second part of a two-part series provides real examples, describes the current state of technology and experience, and discusses techniques that will add value through the incorporation of additional information sources. To date, this technology has been used on more than 50 wells in all areas of the world, including a deepwater job in 1,200 m of water. As of March 1998, there were five ongoing jobs in Oman, Indonesia, Malaysia, Gulf of Mexico, and South America. Examples are given that demonstrate the application of the drill-bit seismic technique and show benefits that can be brought to the drilling process.]]></description>
      <pubDate>Tue, 09 Jun 1998 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/486850</guid>
    </item>
    <item>
      <title>MUD MANAGEMENT, SPECIAL SLURRIES IMPROVE DEEPWATER CEMENTING OPERATIONS</title>
      <link>https://trid.trb.org/View/577689</link>
      <description><![CDATA[Successful deepwater cementing requires improved mud-management techniques to reduce fluid loss, shorten slurry transition times, and make mud and cement slurry weights compatible with formation pore pressure and fracture gradients. If any one of these conditions is not met, the cementing job is less likely to be successful. Previous attempts to drill in deep water have had a low success rate, and failures have cost operators an average $2 million/well. By using new mud-management techniques and specially designed cement mixtures, operators in the Gulf of Mexico (GOM) are effectively setting conductor casing in deepwater conditions and are greatly improving the success rate in cementing deepwater wells.]]></description>
      <pubDate>Wed, 05 Nov 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/577689</guid>
    </item>
    <item>
      <title>ULTRADEEP DRILLSHIP WILL REACT TO HEAVE WITH ELECTRIC-COMPENSATING DRAWWORKS</title>
      <link>https://trid.trb.org/View/576210</link>
      <description><![CDATA[Conoco Incorporated and Reading & Bates Corporation are developing a new ultra-deepwater drillship which will utilize an innovative electric, active-heave compensating drawworks to counterbalance vessel heave. Vertical motion will be counteracted by spooling wire either off or back onto the drawworks drum. For instance, if the ship heaves upward 3 feet, then 42 feet of wire will be reeled off the drum using a 14 line block-and-tackle configuration.]]></description>
      <pubDate>Thu, 07 Aug 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/576210</guid>
    </item>
    <item>
      <title>NEW ULTRA-DEEPWATER RIG WITH DUAL ROTARIES WILL REDUCE COSTS</title>
      <link>https://trid.trb.org/View/483526</link>
      <description><![CDATA[The Discoverer Enterprise, a next generation, ultra-deepwater drill ship with a dual rotary system, will decrease drilling and completion costs by reducing bottom hole assembly (BHA) and tubular preparation time. Transocean Offshore received a contract from Amoco Corp. to build the ultra-deep floating rig and is scheduled to spud its first well in July 1998. It will generally work in water deeper than 6,000 feet. The rig design involves a new approach that addresses the overall well-construction process and equipment required to decrease significantly deepwater drilling time. The Discoverer is the first ultra-deepwater rig designed specifically for handling subsea completions and extended well tests.]]></description>
      <pubDate>Wed, 11 Jun 1997 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/483526</guid>
    </item>
    <item>
      <title>DEEPWATER MOORING AND DRILLING</title>
      <link>https://trid.trb.org/View/149746</link>
      <description><![CDATA[This conference proceeding contains 11 papers, indexed separately.  Topics covered include: environmental loads; numerical simulation techniques; marine risers; and, mooring designs.]]></description>
      <pubDate>Thu, 26 Jun 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/149746</guid>
    </item>
    <item>
      <title>GLOMAR EXPLORER AS A DEEP OCEAN DRILLING AND CORING SHIP</title>
      <link>https://trid.trb.org/View/153732</link>
      <description><![CDATA[A study was conducted to determine the feasibility of utilizing the GLOMAR EXPLORER for deep water scientific drilling and coring.  The large physical size, the massive load handling capability and the large center well of the GLOMAR EXPLORER allow a great deal of flexibility for the incorporation of riser and BOP handling and storage, drilling equipment, laboratory and shop spaces, bulk storage and crew accommodations.  Of particular interest is the proposed incorporation of a riser which does not need flotation since the bare riser weight can be supported, raised and lowered from the ship's existing gimbal and heave compensated rig floor.  This capability simplifies and improves the safety of overall riser handling and support.]]></description>
      <pubDate>Mon, 09 Jun 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/153732</guid>
    </item>
    <item>
      <title>MOTION, FATIGUE, AND THE RELIABILITY CHARACTERISTICS OF A VERTICALLY MOORED PLATFORM</title>
      <link>https://trid.trb.org/View/146927</link>
      <description><![CDATA[As the search for hydrocarbons continues, offshore platforms are being installed in deeper and deeper water.  The vertically moored platform is a buoyant structure for deepwater drilling and production that uses tensioned vertical mooring risers integral with platform wells.  The dynamic response of the structure to wind, wave, and current is analyzed.  A model for relating environmental conditions to riser stresses is outlined.]]></description>
      <pubDate>Mon, 11 Feb 1980 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/146927</guid>
    </item>
    <item>
      <title>INFLUENCE OF INTERNAL WAVES ON DEEP-WATER DRILLING</title>
      <link>https://trid.trb.org/View/86052</link>
      <description><![CDATA[Internal waves were observed during drilling by the drillship Discoverer 534 in the Andaman Sea, offshore Thailand, in water depths ranging from 1,900 ft to more than 3,400 ft.  An engineering analysis was conducted on measured internal wave data and simultaneous measured drillship response.  Knowledge of internal waves will be required for designing production facilities in deep water.]]></description>
      <pubDate>Wed, 28 Mar 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/86052</guid>
    </item>
    <item>
      <title>SEDCO 709--FIRST DYNAMICALLY STATIONED SEMI-SUBMERSIBLE</title>
      <link>https://trid.trb.org/View/72968</link>
      <description><![CDATA[SEDCO 709, the world's first dynamically positioned semi-submersible commenced drilling before the summer of 1977.  Part I of this article describes the dynamic stationing and related control systems involved in the operation of the rig.  Preliminary design and testing, a basic control scheme for azimuthing thrusters known as "pinwheel moment" and the dynamic-stationing environmental limitations are described.  The position reference system and the computerized power management system are also described.  The former involves a Honeywell RS7 acoustic position reference system of which two are used, each computing the vessel position based on separate hydrophone arrays and subsea beacons.  The latter system monitors and records more than 1,000 data points around the vessel as well as making stability and load calculations, performs data reduction and runs drilling programs, apart from controlling the power plant.  Part II of the article describes the Data Management System which helps reduce maintenance costs.  Part III describes the controls which are specially designed for deepwater guidelines re-entry and the blowout preventer (BOP) system.  Innovations in marine riser design and the multiplex telemetry for stack control are described.  SEDCO 709 is also provided with emergency controls in the event of a drive-off and a third back-up consisting of an acoustic BOP control system.  The rig uses second generation re-entry techniques that focus on a combination sonar and television re-entry tool.]]></description>
      <pubDate>Wed, 31 May 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/72968</guid>
    </item>
    <item>
      <title>JDC LAUNCHES FIFTH WHITE DRAGON</title>
      <link>https://trid.trb.org/View/72980</link>
      <description><![CDATA[Japan Drilling Co.  (JDC)'s newest and largest offshore rig which is ideally suited to deep drilling in rough-weather areas is highlighted here.  The mobile, self-propelled semisubmersible is now drilling for Gulf in the Sea of Japan.  Specifications, the riser system and drilling equipment of the new rig which is capable of drilling to 30,000 ft in 1,650 ft of water are briefly discussed.]]></description>
      <pubDate>Wed, 31 May 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/72980</guid>
    </item>
    <item>
      <title>POSITION DETERMINATION FOR DYNAMICALLY POSITIONED VESSELS IN DEEP WATER</title>
      <link>https://trid.trb.org/View/69115</link>
      <description><![CDATA[Many offshore oil fields are in water deep enough that the use of drilling platforms or vessels mounted or moored to the sea bed is not practicable.  Therefore, dynamically positioned vessels are used for drilling operations.  These vessels are not attached to the sea bed, but use thrusters coupled with a closed loop control system to maintain their position over the well.  The control system requires real-time information on the position of the ship relative to the wellhead in order to maintain position.  This information is typically provided by an acoustic system. However, there are several occurrences which can cause loss of the acoustic signal.  Consequently, a backup position measuring system is necessary to provide satisfactory performance.  The approaches commonly used today to provide this backup information are not satisfactory for water depths greater than approximately 1500 feet.  This paper discusses a new approach to provide backup position measurements which uses angle measurements at the top and bottom of the marine riser.  Computer analyses have shown that the new approach yields position errors of one percent or less of water depth for depths of up to 6000 feet.  These analyses have indicated that the concept is feasible for greater depths.  Section (2) presents a brief discussion of dynamic ship positioning.  Requirements for a position measurement system are presented in Section 3.  A discussion of the two approaches most commonly used to obtain backup position data is contained in Section 4.  The remainder of the paper is devoted to discussion of the new approach.]]></description>
      <pubDate>Wed, 03 May 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/69115</guid>
    </item>
    <item>
      <title>FEASIBILITY OF A FIXED PLATFORM FOR USE IN 1,300 FT OF WATER</title>
      <link>https://trid.trb.org/View/61234</link>
      <description><![CDATA[A deep-water fixed platform for drilling and production operations in the Bass Strait off the coast of Australia seems technically feasible.  This conclusion is based on analysis and preliminary design of a fixed-bottom steel platform for 1,300 ft of water.  This paper emphasizes the analytic results that play a significant part in the platform design.  Analytical procedures on the expected behavior under wave action, earthquakes and fatigue are explained.  Factors considered in designing the foundation are also discussed.]]></description>
      <pubDate>Wed, 23 Nov 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/61234</guid>
    </item>
    <item>
      <title>CUSHIONING THE RIDE IN DEEP-SEA DRILLING</title>
      <link>https://trid.trb.org/View/58828</link>
      <description><![CDATA[Heave compensation in one form or another becomes a problem in ocean drilling as soon as the depth of water precludes the use of the jackup type of platform, resting on the ocean floor and independent of the motion of the sea.  The article discusses the design of a new type of compensator with a far greater range of sensitivity and control.  Installation on the Global Challenger took place in November 1973 and the system has proved easy to use, reliable and -- most essential -- popular with the drilling crews.]]></description>
      <pubDate>Thu, 13 Oct 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/58828</guid>
    </item>
    <item>
      <title>DEEPWATER SLOPES VS MOORING PERFORMANCE</title>
      <link>https://trid.trb.org/View/53515</link>
      <description><![CDATA[The capability of the mooring system for deepwater drilling is more critical than for a shallow water program, as shown by this article about the drillship Regional Endeavour which is drilling in deepwater, steeply sloped areas on the southern Australian shelf.  The drillship drilled three wells in water depths to 1260 ft with a conventional chain mooring system.  Problems associated with the running of the anchors and the chain failure are discussed, and some solutions are presented.  It is concluded that the use of conventional mooring system for future deepwater drilling appears somewhat limited.]]></description>
      <pubDate>Thu, 04 Aug 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/53515</guid>
    </item>
  </channel>
</rss>