Physical and chemical characterization of drill cuttings: A review

Costa, L.C.; Carvalho, C.F.; Soares, A.S.F.; Souza, A.C.P.; Bastos, E.F.T.; Guimarães, E.C.B.T.; Santos, J.C.; Carvalho, T.; Calderari, V.H.; Marinho, L.S.; Marques, M.R.C.

doi:10.1016/j.marpolbul.2023.115342

Cited by 3 publications

(1 citation statement)

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“…Considering the millions of tons of drill cuttings produced when drilling exploration and production wells in the oil and gas sector, substantial environmental damage is done, disrupting the equilibrium of entire ecosystems [9]. This is due to the fact that drilling waste consists of both safe and toxic components, the latter being harmful to nature and human health [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Lebedev,

Cherepovitsyn

2024

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Drilling-waste management is of great importance in the oil and gas industry due to the substantial volume of multi-component waste generated during the production process. Improper waste handling can pose serious environmental risks, including soil and water contamination and the release of harmful chemicals. Failure to properly manage waste can result in large fines and legal consequences, as well as damage to corporate reputation. Proper drilling-waste management is essential to mitigate these risks and ensure the sustainable and responsible operation of oil and gas projects. It involves the use of advanced technologies and best practices to treat and utilize drilling waste in an environmentally safe and cost-effective manner. This article describes a feasibility study of four drilling-waste management options in the context of the Khanty-Mansi Autonomous Okrug of Russia. For ten years of the project life, the NPV under the base scenario is equal to RUB −3374.3 million, under the first scenario is equal to RUB −1466.7 million, under the second scenario is equal to RUB −1666.8 million and under the third scenario is equal to RUB −792.4 million. When considering projects, regardless of oil production, the project under the third scenario pays off in 7.8 years and the NPV is RUB 7.04 million. The MCD and MCV parameters were calculated to be 106 km and 2290 tons, respectively. Furthermore, the study estimates the ecological damage prevented and the environmental effect of each option. Quantitative risk assessments, conducted through sensitivity analysis, reveal that the fourth option, involving the conversion of drilling waste into construction materials, emerges as the most economically feasible. The study also evaluates the interaction between business and government and analyzes the current situation in the sphere of drilling-waste management, concluding with concise recommendations for both companies and official bodies.

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Section: Introductionmentioning

confidence: 99%

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Lebedev,

Cherepovitsyn

2024

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Технологія Знешкодження Небезпечних Відходів, Що Утворюються Під Час Розвідки, Видобування Корисних Копалин

Крайнюков,

Кривицька,

Найдьонова

2024

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У статті наведено результати апробації технології знешкодження небезпечних відходів, що утворюються під час розвідки, видобування корисних копалин. Алгоритм включав в себе три технологічні процеси (етапи). Перший етап – збирання небезпечних відходів (твердих бурових шламів) з подальшим їх знешкодженням та отриманням заповнювача на основі бурових шламів. Другий етап – відстоювання, центрифугування та фільтрування (сепарація) рідких нафтовмісних відходів із застосуванням сепаратора СДТ 1-4 та ємностей по 1000 м3 з подальшим знешкодженням небезпечних відходів на 3 етапі. Третій етап – локальне очищення стічних вод від специфічних забруднюючих речовин (важкі метали, нафтопродукти), оксиду та гідроксиду кальцію, гумінових речовин, що включає такі процеси: реагентну флотацію з використанням коагулянту – сульфату заліза ІІІ. Прикінцева ефективність даної технології складала приблизно 95% ефективного очищення небезпечних відходів.

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Monitoring of Drilling Fluids and Cuttings as an Environmental Management Tool for Offshore Fluid Operations

Marinho,

Pereira,

Guandalim

et al. 2024

Day 4 Thu, May 09, 2024

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This study aims to present the comprehensive outcomes of drilling fluids and cuttings monitoring conducted in the Santos Basin, Brazil, during drilling operations. The research sheds light on the environmental implications and management strategies related to offshore drilling activities. These insights can support decisions guided by Life Cycle Assessment (LCA), aiding in informed choices to enhance efficiency and sustainability. The drilling fluids and cuttings monitoring project (DFCMP) encompasses data on drilling discharged into the sea. The monitoring took place during the drilling of 41 deep water wells in Santos Basin, Brazil. Samples were collected at various stages of drilling operations. Data includes discharge quantities, ecotoxicological profiles of the fluids, as well as determinations of metals and polycyclic aromatic hydrocarbons (PAHs) in the samples. These methods enabled the evaluation of environmental impacts throughout the drilling lifecycle. This comprehensive approach provides valuable insights into the effects of drilling activities, contributing to informed decision-making in line with Life Cycle Assessment principles. The monitoring of fluids and cuttings discharged into the sea from 41 drilling operations carried out between 2022 and 2023 in the Santos Basin, Brazil, generated representative samples of fluids and cuttings. These samples account for the offshore discharge of 16000 m³ of cuttings and apporximately142000 m³ of aqueous fluids. Chemical and ecotoxicological analyses conducted on these samples confirm the environmental compliance and quality of these discharges, affirming their adherence to the legal requirements established in Brazil. Regarding the waste generated for onshore disposal, the compiled results indicate an average annual generation of around1590 tonnes of waste, with about 56 % comprising liquid waste from fluid operations, primarily aqueous fluids. Despite fluid and cuttings characterization being present in scientific literature, few contributions emphasize samples collected prior to sea discharge. Many characterizations focus on terrestrial disposal routes and cater to relevant criteria for this purpose. Our study's findings enhance understanding of qualified fluid and cuttings discharged at sea, highlighting industry best practices that meet Brazilian regulations. These locally relevant data are crucial for life cycle analysis, aiding environmental profiles and impact assessment for different waste management routes.

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Physical and chemical characterization of drill cuttings: A review

Cited by 3 publications

References 107 publications

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Технологія Знешкодження Небезпечних Відходів, Що Утворюються Під Час Розвідки, Видобування Корисних Копалин

Monitoring of Drilling Fluids and Cuttings as an Environmental Management Tool for Offshore Fluid Operations

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