Abandonment of Seabed Deposition of Drill Cuttings During Offshore Drilling

2005 ◽  
Author(s):  
John Eirik Paulsen ◽  
Asbjorn Dysvik ◽  
Dag Nilsen ◽  
Tove Roerhuus
Keyword(s):  
Offshore Drilling ◽  
Drill Cuttings

Where Do Drill Cuttings Go in Offshore Drilling?

2011 ◽  
Author(s):  
Boyun Guo ◽  
Jun Li ◽  
Shuhua Lin
Keyword(s):  
Offshore Drilling ◽  
Drill Cuttings

scholarly journals Microwave drying of olefins from drill cuttings and analysis of the organic phase recovered during drying operation

2020 ◽  
Vol 75 ◽  
pp. 1
Author(s):  
Ana C. S. Mota ◽  
Jéssika M. Santos ◽  
Marina S. Pereira ◽  
Carlos H. Ataíde
Keyword(s):  
Organic Phase ◽  
Operating Conditions ◽  
Microwave Drying ◽  
Offshore Drilling ◽  
Drying Time ◽  
Drill Cuttings ◽  
Higher Power ◽  
Negative Effect ◽  
Central Composite ◽  
Condensed Liquid

The main objective of the present work was to study the influence of different operating conditions in the microwave drying of drill cuttings and an eventual degradation of the condensed liquid collected during this operation. For this, a Central Composite Design (CCD) was used, considering three independent variables at three levels: initial olefin content (7.5, 10, and 12.5% w/w), power (250, 500, and 750 W), and time (5, 10, and 15 min); the residual olefin content being the response analyzed in the conducted tests without monitoring or control of the cutting’s temperature. All three variables studied were statistically significant, presenting a positive or negative effect on residual olefin content. As expected, the initial olefin content had a negative effect on the response. On the other hand, when considering the applied power and the drying time, the effect on decontamination yield was positive. The results showed that cuttings can be decontaminated at lower levels than those required by environmental legislation (offshore drilling), reaching residual olefin mass contents of less than 1%. Finally, the organic phase of recovered liquids, after the condensation of vapors produced during drying, was analyzed by gas chromatography technique. It was observed greater olefin degradation in the longer and higher power tests, especially in samples of condensed liquid collected inside the microwave oven.

Method for the mobile offshore drilling units contracting probability assessment

2018 ◽  
pp. 20-23
Author(s):  
I.P. Zaikin ◽  
◽  
K.V. Kempf ◽  
R.R. Naboka ◽  
V.A. Guregyants ◽  
...  
Keyword(s):  
Probability Assessment ◽  
Offshore Drilling

Drilling and Service Contracts in Offshore Oil and Gas Operations

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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