Barrier Analysis of Emergency Disconnect on Dp Mobile Offshore Drilling Units

Barrier Analysis of Emergency Disconnect on DP Mobile Offshore Drilling Units

Volume 2A: Structures, Safety, and Reliability ◽

10.1115/omae2020-19184 ◽

2020 ◽

Author(s):

Haibo Chen ◽

Tommy Bauge ◽

Lorents Reinås ◽

Paul Landeråen

Keyword(s):

Event Tree ◽

Offshore Drilling ◽

Tree Model ◽

Barrier Analysis ◽

Different Types ◽

Calculated Risk ◽

Sensitivity Studies ◽

Reduction Effect ◽

Norwegian Continental Shelf

Abstract Technical, operational and organization barrier elements related to the emergency disconnect on dynamically positioned mobile offshore drilling units on the Norwegian Continental Shelf are identified. Position loss scenarios are analyzed based on the published station-keeping incidents by IMCA (International Marine Contractors Association). How these barrier elements may fail in different types of position loss scenarios are addressed qualitatively and quantitatively in an event tree model. A case study is provided in the paper and notational probability of failure to disconnect given position loss is calculated. Risk reduction effect of various barrier elements are investigated by sensitivity studies. The paper provides insights into risk given position loss and failure of emergency disconnect on DP MODUs. It offers decision support for risk management of DP drilling and well operations in shallow water and harsh environment.

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Method for the mobile offshore drilling units contracting probability assessment

Neftyanoe khozyaystvo - Oil Industry ◽

10.24887/0028-2448-2018-8-20-23 ◽

2018 ◽

pp. 20-23

Author(s):

I.P. Zaikin ◽

◽

K.V. Kempf ◽

R.R. Naboka ◽

V.A. Guregyants ◽

...

Keyword(s):

Probability Assessment ◽

Offshore Drilling

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Conceptual Study of Anthasena: Donut Shaped Semi-Submersible Offshore Drilling and Production Platform to Exploit Marginal Field in East Indonesia

Proc of Indonesian Petroleum Association 42nd Annual Convention ◽

10.29118/ipa19.se.343 ◽

2018 ◽

Author(s):

A. D. Wara

Keyword(s):

Offshore Drilling ◽

Production Platform ◽

Conceptual Study ◽

Marginal Field

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Drilling and Service Contracts in Offshore Oil and Gas Operations

Alberta Law Review ◽

10.29173/alr628 ◽

1973 ◽

Vol 11 (3) ◽

pp. 480

Author(s):

J. M. Killey

Keyword(s):

Oil And Gas ◽

Oil Industry ◽

Offshore Drilling ◽

Oil Companies ◽

Drilling Rig ◽

Service Contracts ◽

Oil And Gas Operations ◽

Offshore Oil And Gas ◽

Offshore Oil ◽

Offshore Operations

As onshore oil and gas deposits are becoming more difficult to locate, and as the world demands for energy continue to increase at an alarming rate, oil companies are channeling much of their exploration activities towards offshore operations, and in particular, towards operations centered off Canada's coast lines. Because of the environment, offshore drilling presents problems which are novel to the onshore-geared oil industry. J. M. Killey discusses in detail many of the considerations involved in drafting the offshore drilling contract, concentrating on problems such as the liability of the various parties; costs; scheduling; pollution; conflict of laws; etc. Similarly, he discusses service contracts (such as supply boat charters; towing services; helicopter services; etc.^ which are necessity to the operation of an offshore drilling rig. To complement his paper, the author has included number of appendices which list the various considerations lawyer must keep in mind when drafting contracts for offshore operations.

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