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Structures

Decommissioning Methodology and Cost Evaluation for Alaska OCS Region Offshore Oil and Gas Gravel Island Facilities

The objective of the study is to provide the Alaska OCS Region with research and cost estimating regarding decommissioning of a typical arctic gravel island-based, oil and gas exploration/production facility. The work considered standard industry practice, available technology, current regulations (e.g. 30 CFR 250 Subpart Q) and market conditions.

Remote Visual Inspection Joint Industry Project

The United Kingdom, Health and Safety Executive (HSE) is conducting research in a Joint Industry Project (JIP) aimed at providing a stronger understanding of both the benefits and limitations of RVIs and develop a set of best practices when conducting these types of inspections. The JIP will:

  1. Assess current technologies and practices
  2. Conduct RVI trials for probability and detection
  3. Determine the human factors and competence assessment
  4. Develop a good practice guide and methodology for demonstrating competence for RVI 

Effects of Damping Properties of Anchoring Systems, Tension Legs, and Risers on Fatigue, Longevity, and Life Extension Decisions

To study the effects of damping properties of anchoring systems, tension legs, and risers on fatigue, longevity, and life extension decisions. The study will include empirical evaluation and modeling for tthe effects of damping properties, incldueing potential reduction in fatigue among other effects.
The study will evaluate potential effects of damping properties and their direct implications for platform and riser life extensions and factors that could affect life extension determinations.

Total contract award, including options, is $324,867.00

Crane Safety Assessment Findings, Results, and Recommendations

The study involved analysis of cranes and material handling equipment operating on the OCS, analysis of BSEE lifting Potential Incidents of Noncompliance (PINCs) and incidents, review of industry standards and practices, and recommendations for changes to lifting regulation. The goal of this study was to develop an inspection methodology that may be used by BSEE and USCG personnel in performing an assessment in regards to the safety of cranes and material handling equipment.

TAP-717-Physical Oceanographic and Meteorological Data for Beaufort and Chukchi Seas to Support Reliability-Based Design Criteria for Arctic Offshore Oil and Gas Structures

The objective of this project is to produce information that will facilitate strict implementation of the ISO J 9906 Standard: Petroleum and Natural Gas Industries -Arctic Offshore Structures. The information gathered under this contract will consist of meteorological and oceanographic information, for US waters in both the Chukchi and Beaufort seas, in a format consistent with the philosophy of the Normative.

TAP-716-Reliability-Based Sea-Ice Parameters for Design of Offshore Structures

The objective of this project is to produce information that will facilitate strict implementation of the ISO 19906 Standard: Petroleum and Natural Gas Industries - Arctic Offshore Structures (i.e., the Normative). The information will consist of sea-ice information, for U.S. waters in both the Chukchi and Beaufort seas, in a format consistent with the philosophy of the Normative.

TAP-708-Hydrodynamics of Disconnectable Turret Systems (DISCO)

There has been a growing number of projects in the offshore industry that use disconnectable buoy systems. The advantage of such a system is that in case a large hurricane or typhoon is moving towards the FPSO it can be disconnected from its risers and mooring quickly to avoid any damage to the facility. In this disconnection phase the turret buoy is detached from the vessel and drops to a safe depth of 100-200m below the surface. The FPSO is then moved to a safe area until the storm has passed by.

TAP-703-Design and Operation Practice for Arctic Mooring Systems JIP

1) Developing a design and operation practice document based on existing technology, industry experience, and consensus building. This document can be used as:

  • A foundation document for developing industry standards such as an Arctic supplement to API RP 2SK or ABS guidance notes
  • A foundation document for developing company specific design and operation guidelines

2) Providing a forum for the industry and regulators to exchange information/ideas and work together to build consensus.
3) Developing a proposal for further joint industry work

TAP-696-Short Crest JIP: Effect of Short-crestedness on extreme wave impact

This project is the brainchild of the CresT JIP. The central question of the CresT JIP was What is the highest (most critical) wave crest that will be encountered by a platform in its lifetime? In July 2010 the CresT JIP was completed and resulted in a number of important and practical recommendations for the wave and crest heights to be used in floating platform design.

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