How Clean is Clean? Is It Still a Debate?

Garland, Emmanuel

doi:10.2523/10911-ms

Cited by 2 publications

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“…The EU regulatory framework governing occupational health, safety and the protection of the offshore environment is stringent 27,28 . Replacing some 40 different pieces of legislation and with its roots in the extensively amended (nine times) and adapted (thirty times) DSD 29 from 1967 30 , REACH will add an extra layer of hazard and risk assessment and compliance requirement to all operations using chemicals.…”

Section: Reach In Brief An Overviewmentioning

confidence: 99%

REACH and the HSE Case for Formate Brines

et al. 2007

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TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractEurope's biggest-ever single piece of legislation, REACH (Registration, Evaluation and Authorisation of Chemicals), entered into force on June 1, 2007. REACH requires manufacturers, importers and users of chemicals to demonstrate that their products are safe to use for humans and the environment. There will be increasing pressure to substitute chemicals perceived as potentially harmful with less hazardous materials. The legislation is expected to have a significant effect on the management and application of chemicals used by the oil industry in Europe.This paper reviews the REACH process of approval from an end users point of view. The focus is on how REACH will impact on oil companies' European exploration and production (E&P) activities in practical terms. Previous work in the area has tended to focus on the impact on the chemical manufacturers or on cost. The likely consequences of REACH to upstream oil and gas companies are here demonstrated through a discussion of management requirements, based on how four international oil companies are preparing to ensure upstream operations comply with REACH For the European E&P industry, the introduction of REACH will require new management focus and measures to:1. Identify the potential for discontinuation of supply of vital oilfield chemicals 2. Design and implement more rigorous chemical management procedures at site but is also considered to 3. Support better and more comparative assessment of chemicals' Health, Safety and Environmental (HSE) properties. In order to illustrate the complex processes of REACH, the regulatory requirements have been reviewed against the HSE profile of formates. These high volume oilfield chemicals used as drilling and completion fluids can be handled by employees with a high level of safety without requiring full chemical hazard suits. Formate brines demonstrate a low level of toxicity to humans and the environmental impact is significantly less than that of many traditional brines. In the tightening regulatory environment this effectively means that compliance is less arduous to achieve and requires less chemical specific management measures.

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Section: Reach In Brief An Overviewmentioning

confidence: 99%

REACH and the HSE Case for Formate Brines

et al. 2007

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“…1 While it is generally accepted that OBM provides unambiguous advantages over WBM, since the early 1970's escalating environmental concerns have led to more stringent regulations concerning use of OBM. 1,2 These regulatory guidelines sometimes negate OBM as a choice as logistics and cost may outweigh its drilling benefits.…”

Section: Introductionmentioning

confidence: 99%

Dual Purpose Reversible Reservoir Drill-In Fluid Provides the Perfect Solution for Drilling and Completion Efficiency of a Reservoir

2006

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TX 75083-3836, U.S.A., fax 1.972.952.9435. AbstractIdeally, a reservoir drill-in fluid (RDF) possessing both an oil external phase for drilling and a water external phase for completion would provide the ideal solution for drilling and completing a well. Through the manipulation of surfactant chemistry, a novel reversible invert emulsion drilling system, which provides both attributes, has been developed. During drilling, an operator can utilize the reversible oil-based mud to take advantage of the commonly accepted properties that enhance the drilling efficiency and then convert this system to a water-based fluid to improve the completion efficiency.The amine-based surfactants used in the reversible invert system are strong emulsifiers in an alkaline medium; however these same emulsifiers become more common direct oil-inwater emulsifiers in the presence of protonating agents such as acid. This process of protonation and deprotonation of emulsifiers controls the emulsion phase of this drilling system and thereby, the oil-wetting and water-wetting characteristics of the subsequent filtercake and entrained solids. As the bridging agents in filtercake are commonly calcium carbonate, once water-wet (in presence of acid) promote clean-up and thus, are readily consumed by common acids that may be utilized during the completion phase.This system was field trialed with success for drilling and completing an injector in the first quarter of 2000. Since this initial application, numerous completions have utilized this reversible invert RDF system. This system has been successfully applied to a variety of completions, in particular: injectors and producers, openhole gravel-packs (OHGP), expandables and standalone as well as various environments and reservoirs. Theoretically, this system also provides advantages with respect to common cementing and environmental issues.This paper presents the development of this multi-purpose drilling and completion system and discusses the application of this technology to adapt to the challenges of evolving global completion complexity.Several case history examples are presented from selected completions. The paper includes the laboratory pre-planning and field data illustrating the concerns and the development of a solution with respect to drilling and clean-up.

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How Clean is Clean? Is It Still a Debate?

Cited by 2 publications

References 0 publications

REACH and the HSE Case for Formate Brines

REACH and the HSE Case for Formate Brines

Dual Purpose Reversible Reservoir Drill-In Fluid Provides the Perfect Solution for Drilling and Completion Efficiency of a Reservoir

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