This project evaluates the risk costs of three alternative design concepts for a deepwater Dry Tree Tieback well systems (well systems that extend the wellbore to a Christmas tree located on the production vessel (TLP, Spar)). The three design analyzed are:
1) dual casing riser;
2) single casing riser; and
3) tubing riser.
This JIP was formed to develop a preliminary model of riser reliability. The insights gained by this model will be used to generate a road-map for the development of a more refined model of riser reliability. The preliminary model will also allow the structure and location- specific reliability results, which will be useful in the evaluation of the reliability inherent in current designs.The study originally planned to consider both a TLP production riser and a drilling riser, each in 1000 meters of water.
This is a Joint Industry Project (JIP) with 35 members, to support the development of an Offshore Technology Research Center (OTRC). The OTRC will develop solutions to structural problems that are faced in drilling and production in deep water. Research focuses on the interactions between structures and fluid, materials and the seafloor. As a partner the MMS will receive access to all technology developed at the OTRC.
Produce a written review of the state of the art in topics as the prevention of hydrate formation and removal of hydrates during drilling, production, transportation, and other processing of hydrocarbons. These topics will become increasingly important to the safety of operations as industry moves into the deeper parts of the Gulf of Mexico, where the colder temperatures cause more hydrate
This is a Joint Industry Project (JIP). The purpose of this project was to verify engineering designs for deep water SPAR drilling, production and storage systems. SPAR is a large, stable, deep draft, cylindrical floating caisson designed to support drilling and production operations. The SPAR can store produced oil if needed. Wave tank testing was done at as large a scale as possible to verify engineering design calculations for SPAR. Emphasis was placed on confirming the slowly varying second order responses which dominated the global surge and pitch motions of the SPAR.
To develop a generic cost effective subsea oil and gas production system design for deepwater operations in the Gulf of Mexico.
Develop a method for examining the adequacy of planned casing programs for minimizing platform vulnerability to cratering. Some operators use a rule of thumb that a well can be safely shut-in when casing is set at a certain depth. However, that depth is highly variable. This area of well design is currently poorly understood. The information generated by this project will be useful to identify and resolve technological and procedural barriers related to well control for deepwater development in the Gulf of Mexico and California regions as well as arctic drilling in Alaska.
This was a Joint Industry Project (JIP). The objectives are (1) a comprehensive design and application manual for present day strengthening/repair techniques for diver- assisted operations, and (2) a series of detailed feasibility and evaluation studies for the application of strengthening/repair measures to deepwater locations using ROV's. A detailed appraisal of all intervention techniques was included.
This study was a Joint Industry Project (JIP) and is an adjunct investigation to Project No. 147. The objective was to examine the important combined motion and damping problems involved in the hydrodynamic analysis of deep-water risers and compliant structures. The specific aims were:
(1) to improve present practice through the use of an alternative to the Morison equation called the Inertial Pressure Method (IPM); and
