Results 211 to 220 of about 547 (264)

Advancements in Deepwater Drilling Riser Modelling

Volume 6B: Pipeline and Riser Technology, 2014
Experience with modern ultra-deepwater capable drilling vessels and their associated marine riser tensioner systems has led to increased concerns over tensioner load variations in extreme environments. Modern drilling riser tensioners are complex hydro-pneumatic systems whereby the tension applied at the slip-ring can vary significantly with tensioner ...
Paul Bohan, Donogh Lang
openaire   +1 more source

Study on the Effects of Drilling Riser Attachments

Volume 5: Pipelines, Risers, and Subsea Systems, 2018
A drilling riser is a conduit that provides a temporary extension of a subsea oil well to a surface drilling facility. The drilling risers are used with subsea BOP and generally used by floating drilling vessels. When used at deeper depths, the drilling riser must be tensioned to maintain stability.
Sung-Je Lee, Chan-Hoe Kang, Jeong-Ho Lee, Chang-Hwan Jang, Sung-Gun Park, Sung-Kon Han   +5 more
openaire   +1 more source

A Fast Coupling for a Deepwater Drilling Riser

SPE Annual Technical Conference and Exhibition, 1984
ABSTRACT ELF AQUITAINE and TOTAL have operated the D.P. drill ship Discoverer Seven Seas in the Mediterranean Sea, temporarily establishing a new world water depth record on GLP1 well located south of Marseilles in 5 624 ft of water. The success of this well and the following well GLP2 in the same area can be partially ...
Le J.P., J. Guesnon, L.M. Soleille
openaire   +1 more source

Natural Frequencies of Marine Drilling Risers

Journal of Petroleum Technology, 1976
This paper gives the mathematical basis for determining natural frequencies and corresponding mode shapes for marine drilling risers. Numerical results relate natural frequencies to riser parameters; the data cover risers operating within 600 ft of water. An approximate method is given for establishing marine-riser natural frequencies.
D.W. Dareing, T. Huang
openaire   +1 more source

Concentric Drilling Risers for Ultra Deepwater

IADC/SPE Drilling Conference, 1998
Abstract Use of a higher pressure rated riser run inside the marine drilling riser would provide floating rigs with some advantages enjoyed by fixed rigs; the potential to drill underbalanced or near balanced, improved gas handling capability, improved well testing capability, expanded kick control capabilities and ...
R.P. Herrmann, J.M. Shaughnessy, P.A. Beynet   +2 more
openaire   +1 more source

Field Operation of Drilling Marine Risers

Journal of Petroleum Technology, 1980
Structural analysis techniques have been used since the 1950's to predict stresses in marine riser systems. However, little effort has been focused on the input design criteria, their interpretation, and field application. Taking into consideration the rig's characteristics, mooring capability, and riser system, this paper presents design and operating
Mark A. Childers, E.B. Martin
openaire   +1 more source

Study on Deepwater Drilling Riser Wear

Offshore Technology Conference-Asia, 2014
Several riser wear accidents have occurred in offshore oil industry, which threaten offshore drilling safety and cause huge human, economy and environment losses. In 2012 and 2013, several deepwater exploration wells were accomplished in the South China Sea by CNOOC as the operator with the deepwater drilling unit HYSY981.
Xiuquan Liu, Guoming Chen, Yuanjiang Chang, Lei Zhang, Kang Liu   +4 more
openaire   +1 more source

Feasibility Study of Disconnectible Drilling Risers

Volume 3: Pipeline and Riser Technology; Ocean Space Utilization, 2008
This study investigates the feasibility of an alternative deepwater drilling riser concept. The riser consists of two segments: a short upper segment suspending from a MODU, and a long freestanding lower segment that can be disconnected from the upper segment.
Yousun Li, King Him Lo, Hugo Corvalan San Martin   +2 more
openaire   +1 more source

Design of Floating Vessel Drilling Riser

Journal of Petroleum Technology, 1966
FISCHER, WILLIAM, STANDARD OIL CO. OF CALIFORNIA, LA HABRA, CALIF. LUDWIG, MILTON, SAN FRANCISCO, CALIF. Abstract An offshore drilling riser, necessary to return drilling fluid to the drilling vessel and to guide the rotating drill pipe, will fail in water depths greater than 200 to 300 ft if it is ...
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Maximizing Drilling Riser Installation Operability for TLP Top Tensioned Risers

Volume 4B: Pipeline and Riser Technology, 2013
Top tensioned risers (TTRs) are a key component in Dry Tree Tension Leg Platform (TLP) systems. TTRs are used for both production and drilling operations. The operability of the drilling riser system can be a key factor in the project economics.
Mike Campbell, Jim Kaculi, Ryan Koska, Darren Mills   +3 more
openaire   +1 more source