|Publisher||Offshore Technology Conference||Language||English|
|Content Type||Conference Paper|
|Title||Heat Shield Walls on Living Quarters, Installed On Drilling and Production Platforms at Ekofisk - Norwegian North Sea|
|Authors||H. D. Barnard, E. W. Gilbreth, Phillips Petroleum Co. Europe-Africa; C. C. Murhall, Brown and Root (UK) Ltd.|
Offshore Technology Conference, 3-6 May , Houston, Texas
|Copyright||1976. Offshore Technology Conference|
The paper concludes that the safety of personnel resident in a Living Quarters module on an offshore Installation during production well drilling, completion, wire lining and field production can be greatly improve by the installation of the heat shield wall, on the inboard side of the quarters.
This concept is gaining wide acceptance by authoritative bodies.
Significance of the study is that it has developed, in a rudimentary fashion, a tool for predicting the mechanics and consequences of certain platform disasters; as well as developing a form of construction to meet these events, should they occur.
This construction is now an established form of protection by Phillips Petroleum Co. for all new permanent quarters in the Norwegian North Sea.
Early 1973 heralded the expected increase in offshore activity on Phase 2 constructions at Ekofisk, and launched the future designs of Phase 3 installations.
The first installation to be engineered in the Phase 3 development program was the COD field platform, to stand in approximately 230 ft. of water on Block 7/11, and lie about 50 miles North west of Ekofisk Center. The platform was to be a combined drilling, production, and accommodations platform with a production rate of 17400 BPD of oil and 118.5 MMSCFD of gas. Due to its remoteness it was to be fully self supporting; a compact production facility with its own Living Quarters, and with its products pipelined to Ekofisk Center.
The quarters were to be permanent, and designed to accommodate all drilling and well service company crews during well drilling, completion and testing; accommodate all work crews during production equipment and line hook-up; and eventually house the operations and maintenance personnel during the production life of the field.
To the Regulatory Agencies involved the concept of a-permanent quarters on a production platform, in close proximity to hydrocarbon handling equipment was highly innovative, and considered unsafe and of unsound practice.
In order to assure the Regulatory Authorities to the contrary it was decided to prepare certain theoretical analyses for COD. The intent was to demonstrate that in the event of failures, selected platform disasters or normal operating upsets the safety of personnel on board was protected within the confines of the quarters for an adequate period.
The documentation that made, these analyses, was called the 'Safety Study'. It made a study of production flaring during equipment malfunctions, calculated normal and abnormal operating noise levels, and also predicted the sequence and consequences of certain major platform accidents occurring a result of possible material or equipment failure.
The section of the study that analyzed 'catastrophies', although rudimentary in its approach, did produce parameters and predicted effects that clearly indicated the type of protection required.
It showed that the quarters, where the personnel would ultimately assemble in an emergency, had to be protected on its inboard side, roof and supporting skid, by a construction that could. Withstand high, intense thermal shocks, continually high radiant heat levels and the errosive effect a of convective heat fluxes.
|File Size||1,442 KB||20|