Petroleum Activities Research Articles

Chemical Fingerprinting, PAHs Characterization and Ecological Risks of Carcinogenic PAHs in Surficial Sediments of Egi Crude Oil Producing Communities, Niger-Delta, Nigeria

In order to do PAHs rings analysis, its source identification, extent to which cPAHs present and what kind of ecological risk they pose, the surface sediments from various freshwaters in the Egi crude oil producing cities in the Niger Delta, Nigeria were analyzed. Sediments collected from the research areas for PAHs loadings (in mg/kg dry weight) ranged from 0.020 to 1.790, 0.050 to 1.880, and 0.020 to 1.640, respectively for Obite, Obagi, and Ibewa cluster areas, as measured by gas chromatography-mass spectrometer. In these clusters, the respective average concentration of the three dominant carcinogenic PAHs were Indeno(1,2,3-cd)pyrene (1.170.0mg/kg), Dibenz[a,h]anthrancene (0.870.0 mg/kg), and Dibenz[a,h]anthrancene (1.3670 mg/kg) for Ibewa, Obagi and Obite cluster areas. The findings showed that dominant PAHs rings are of high molecular weight (HMW) PAHs in these sediments are, 5 member rings, which are benzo(b)fluoranthene, Benzo(k)fluoranthene, and Benzo(a)pyrène, and 6-member ring which are, Indeno(1,2,3-cd)pyrene, Dibenz[a,h]anthrancene, and Benzo[ghi] perylene, respectively. Their fingerprints points majorly to pyrogenic sources, combustion of coal, biomass, petroleum, and other related anthropogenic petroleum activities as the primary source of PAHs in the environment. Notably, the RQNCs and RQMPCs for single PAHs molecule are both less than 1, it means the contamination it generates is considered of low ecological risk. Again, the research area experiences frequent flooding, it is believed that this contributes to the low ecological risk of PAHs chemical pollution. Consequently, the area is deemed to be quite safe.

Photocatalytic Luminous Textiles for the Treatment of Wastewater Issued from Petroleum Activity: Photocatalytic Process Extrapolation

In this study, the degradation of naphthalene in water was performed via photocatalysis with two different configurations: UV-irradiated TiO2 deposited on cellulosic tissue and photocatalytic luminous textiles. The photocatalytic performance of these configurations was evaluated in terms of pollutant removal and mineralization yield. Moreover, the influence of key operating parameters, such as the initial pollutant concentration, solution turbidity, the number of tissues, and the type of irradiation, was investigated. The results showed a complete removal of 8 mg/L of naphthalene with photocatalytic luminous textiles after 4 h of UV irradiation, with a mineralization yield of 80%. The impact of the turbidity shows that at 90 NTU, reductions in photocatalytic activity of 30% and 10% were recorded for the UV-irradiated TiO2 deposed on cellulosic tissue and photocatalytic luminous textiles, respectively. The reactive oxygen species (ROS) concentrations were monitored during photocatalysis to better understand the contribution of each active species in the mechanism reaction of naphthalene oxidation. The results show that the hydroxyl radical (•OH) is responsible for 70% of pollutant oxidation. A scaling up of the water treatment with photocatalytic luminous textiles was performed. The extrapolation confirmed the same trends observed at the laboratory scale in terms of degradation and mineralization.

Impact of Overpressure on the Preservation of Liquid Petroleum: Evidence from Fluid Inclusions in the Deep Reservoirs of the Tazhong Area, Tarim Basin, Western China

The complexity of petroleum phases in deep formations plays an important role in the evaluation of hydrocarbon resources. Pressure is considered to have a positive impact on the preservation of liquid oils, yet direct evidence for this phenomenon is lacking in the case of deep reservoirs due to late destruction. Here, we present fluid-inclusion assemblages from a deep reservoir in the Tazhong area of the Tarim Basin, northwestern China, which formed as a direct consequence of fluid pressure evolution. Based on thermodynamic measurements and simulations of the coexisting aqueous and petroleum inclusions in these assemblages, the history of petroleum activities was reconstructed. Our results show that all analyzed fluid-inclusion assemblages demonstrated variable pressure conditions in different charging stages, ranging from hydrostatic to overpressure (a pressure coefficient of up to 1.49). Sequential petroleum charging and partial oil cracking may have been the main contributors to overpressure. By comparing the phases of petroleum and fluid pressures in the two wells, ZS1 and ZS5, it can be inferred that overpressure inhibits oil cracking. Thus, overpressure exerts an important influence on the preservation of liquid hydrocarbon under high temperatures. Furthermore, our results reveal that the exploration potential for liquid petroleum is considerable in the deep reservoirs of the Tarim Basin.

Managing deepsea oil spills through a systematic modeling approach

Offshore oil exploration and production in deepwater are associated with environmental risks to marine ecosystems. This research introduces DWOSM (Deep Water Oil Spill Model), a three-dimensional Lagrangian model, which is developed to simulate the transport and fate of oil spills resulting from subsea blowouts. DWOSM comprises three interconnected modules: DWOSM-DSD, which predicts the oil droplet size distribution from a blowout release; DWOSM-NearField, simulating plume dynamics and tracking oil droplets within the plume region; and DWOSM-FarField, modeling the evolution of dispersed oil beyond the near-field. Compared to other oil spill models, this integrated approach improves the transition between near and far fields using a near-field particle tracking algorithm. It also employs the thermodynamic models to enable the prediction of oil properties under varying deep water pressure and temperature. To gauge the reliability and efficacy of DWOSM, a hypothetical case situated within a North American context is employed for model testing. The DWOSM and its each module are juxtaposed with other established oil spill models. The outcomes indicate that DWOSM yields comparable results to these models by providing reasonable predictions of a deepwater blowout. The model's verification through case scenario testing and comparison underscores its potential as a decision tool for assessing and managing the potential environmental impacts of offshore petroleum activities.

Petroleum’s Influence on the Aquatic Environment

Aquifer, rivers, or lakes are frequently employed as the local sources of water that the petroleum industry uses to drill and hydraulically fracture wells, refine and process petroleum, and create electricity in certain natural gas-based power plants. Oil residues, chemicals from hydraulic fracturing and drilling fluids, and naturally occurring pollutants from the rocks themselves may all be present in the water that is generated along with petroleum. It is also frequently naturally salty. The environmental effects of petroleum activities may change a range of ecological characteristics, such as biodiversity, biomass, and productivity, which may then affect specific species, populations, assemblages, or ecosystems. There are two basic types of long-term and short-term impacts of petroleum contamination in water. The difficulties produced by point pollution in aquatic ecosystems have come to light due to the impact of petroleum compounds on living organisms in aquatic environments.

Land use/land cover of petroleum activities in the framework of sustainable development

Land use/land cover of petroleum activities in the framework of sustainable development

Mercury contamination in seafood from an aquatic environment impacted by anthropic activity: seasonality and human health risk.

Petroleum activity and the dumping of domestic and industrial sewage are important sources of mercury (Hg) contamination in the aquatic environment. Thus, this article aimed to biomonitor the Hg concentration in fish, mussels, and swimming crabs of commercial importance in southeastern Brazil. The quantifications were carried out over a year to verify the influence of seasonality. Finally, a risk assessment was applied to identify whether the concentrations found could lead to long-term damage to the population. Our results indicate that the contaminations were higher in spring, summer, and winter than in autumn, mainly among fish and swimming crabs. The results of quantification in the animal and estimated monthly intake, despite being below the limit established nationally and internationally, were indicative of risk for these two animals after calculating the Hazard quotient. The highest risk values were attributed to the infant population. Based on the data generated by this work, the consumption of mussels is encouraged throughout the year, to the detriment of the other types of seafood studied, especially during summer, spring, and winter. Our work reinforces the importance of risk assessment for a more reliable understanding of the impact of contaminants in seafood on the population's health.

Safety voice climate: A psychometric evaluation and validation

Introduction: Speaking up about safety issues, termed “safety voice,” is a proactive response where people across all levels of the organization express their concerns to prevent physical hazards. An understanding of safety voice requires insight into its antecedents. A perceived need to fit in with the organization and fear of consequences can trump the courage to speak out about safety concerns. Safety voice climate can be seen as a manifestation of the social exchanges in an organization and functions as a roadmap of which speaking out behaviors are encouraged and which behaviors are not. This study conceptualizes safety voice climate, presents the Safety Voice Climate Scale (SVCS) as a measurement tool, and gathers initial evidence for its validity. The study also assesses the associations between the SVCS and safety voice behavior. Method: The SVCS and the measurement of safety voice behavior were derived from the Trends in Risk Level in the Norwegian Petroleum Activity questionnaire. The SVCS includes the two theoretical dimensions Work colleagues’ encouragement of safety voice and Leaders’ attitudes towards safety voice. Psychometric properties were tested with a representative sample from the Norwegian petroleum sector (n = 7,624). Results: Confirmatory factor analyses supported the proposed two-factor model, and the internal consistency of the factors was good. Furthermore, a structural equation model including the SVCS as predictors of safety voice behavior showed a good fit, indicating acceptable criterion validity, although only the Work colleagues’ encouragement of safety voice variable was significantly associated with safety voice behavior. Conclusion and practical application: The SVCS can be used as a tool to detect some of the barriers and supporting elements relating to safety voice and guidance on the efforts needed to foster work climates that promote communication of safety issues.

Challenges and lessons learnt from Northern Territory (NT) Orphan Well project

The Orphan Well project evolved from recommendations in the Final Report of the NT Hydraulic Fracturing Inquiry (HFI). The purpose was to assess wells that were drilled under petroleum permit or licence, and which had subsequently been surrendered by the titleholder and are now the responsibility of the NT Government. The project’s objective was to confirm the current status of these wells and to put forward recommendations for remedial works and/or monitoring for wells assessed to have an integrity risk. The assessment primarily focusses on the risk of fugitive methane gas. Two petroleum engineers were employed to undertake the project of assessing 113 orphan wells scattered over 1.4 million km2 of the NT. As it is a requirement to rehabilitate the land after petroleum activities have ceased, access to orphan wells is often not maintained; therefore, logistical consideration was undertaken. The project involved an initial desktop study of well history (construction) followed by a field site inspection. The drilling of these wells date back to the 1960s. These older wells can often have less detail in the well records including survey location, and being pre-GPS, may include location errors of several kilometres. Remote helicopter travel was used to undertake fieldwork and to locate these wells. The site inspections commenced in February 2022 and as at 31 December 2022 on ground field inspections were delivered to 96 wellsites. This paper provides insight as to how the Orphan Well team developed its processes in both desktop study and site investigations.

PHYTOCHEMICAL INVESTIGATION, FT-IR PROFILING AND ANTIBACTERIAL ACTIVITY OF PAPAYA (VAR. RED LADY) PEEL- A RICH SOURCE OF BIOACTIVE CHEMICALS

Fruit wastes are produced in huge quantities which constitute a source of pesterer in the environment due to their highbiodegradability. To explore the potential of fruit waste as natural resources of bioactive compounds the present studyinvestigate the qualitative and quantitative analysis of phytochemicals, FT- IR fingerprinting and antimicrobial activity ofpetroleum ether, ethyl acetate, ethanol and water extracts of papaya peel collected from variety red lady. The qualitativephytochemical investigation of papaya peel extracts showed the presence of phenols, flavonoids, alkaloids, tannins,saponins, terpenoids and steroids, whereas in the estimation, total amount of phenols was high when compared toflavonoids. The FT-IR spectroscopic investigation showed the presence of characteristic peak values with different usefulmixtures of functional groups such as hydroxy group, aliphatic, carbonyl, alcohols, phenols, alkanes, ketones, carboxylicacids, amine and aromatics. Among the four extracts evaluated, ethyl acetate fraction showed more numbers offunctional groups. The ethyl acetate and ethanol extract displayed increased antibacterial activity in all tested bacterialstrains and found as better solvents for the isolation of the bioactive compounds from papaya peel. Highest zone ofinhibition (20mm) was showed by Gram negative bacterium Proteus mirabilis against synthetic antibiotic tetracycline(24mm).

Metals bioaccumulation, possible sources and consumption risk assessment in five Sillaginid species, a case study: Bandar Abbas (Persian Gulf) and Chabahar Bay (Oman Sea), Iran

In this study, the concentrations of 10 metals (As, Al, Cd, Cr, Cu, Fe, Hg, Ni, Pb and Zn) in different tissues (gill, muscle and otolith) of five sillaginid species (Sillago arabica, S. attenuata and S. sihama from the Persian Gulf and S. indica, S. sihama and Sillaginopodys chondropus from the Oman Sea) were analyzed using ICP-MS, and the potential human health risk assessment for local consumers was also conducted using standard indices. The concentration of trace metals (μg g−1 dw) in fish ranged from 0.24 to 16.09 (As), 7.88 to 167.51 (Al), 0.005 > −0.866 (Cd), 0.006 > −7.95 (Cr), 1.02–5.58 (Cu), 24.86 to 390.85 (Fe), 0.005 > −1.93 (Hg), 0.021 > −7.80 (Ni), 0.33–4.41 (Pb) and 4.78–170.43 (Zn). The levels of trace metals varied significantly among sampling sites, fish species and their tissues. Gill tissues accumulate higher concentrations of the analyzed elements, except for As and Hg, whose higher concentrations were found in muscle tissues. Among the species, S. sihama in the Persian Gulf showed the highest levels of toxic metals compared to the other species. The dendrogram of metal association in fish muscle tissues revealed that Ni, Cr, Cd, Pb and Hg in muscles mainly originated from anthropogenic sources, especially petroleum activities. A second dendrogram based on the association of these five metals in the muscle tissue separated the sillaginid species of the Persian Gulf from the Oman Sea. The mean concentrations of the analyzed metals in the edible tissues were lower than international standards of maximum permissible limits (MPL), except for inorganic As (iAs) and Pb. The index of estimated daily intake (EDI) for Cr and Hg in all sillaginid species, and iAs, Pb and Ni only in the Persian Gulf's sillaginid species was higher than the recommended values. The value of the target hazard quotient (THQ) indicated that the intake of individual heavy metals due to the consumption of sillaginid species was safe for human health (except Hg in S. arabica) whereas combined heavy metals' intake revealed potential health problems in the case of increased consumption for all three sillaginids in the Persian Gulf. Target cancer risk (TR) for iAs in all species and Cd, Cr and Ni in Persian Gulf species was higher than the acceptable range. The results indicated the health issues associated with high consumption, especially for sillaginids in the Persian Gulf, which should be considered in food safety monitoring for local people in the area.

Regulator Analyzes Australia’s Decommissioning Challenge

_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 208483, “Is Australia Prepared for the Decommissioning Challenge? A Regulator’s Perspective,” by David Christensen and Andrew Re, National Offshore Petroleum Safety and Environmental Management Authority. The paper has not been peer reviewed. _ The Australian offshore petroleum industry has been in operation since the early 1960s and at the time of writing has approximately 57 platforms, 11 floating facilities, 3500 km of pipelines, and 1,000 wells in operation. Many offshore facilities are now approaching the end of their operational lives. Modeling has estimated Australia’s combined offshore petroleum industry decommissioning liability (including wells, pipelines, subsea equipment, and facilities) to be $40.5 billion. The purpose of the complete paper is to highlight the importance and benefit of adopting best practices when planning for decommissioning throughout the life cycle of a petroleum project. Introduction Australia’s offshore petroleum decommissioning challenge is significant given its remote location, limited availability of specialist services, and the relative infancy of its offshore industry in undertaking large-scale decommissioning projects. Recent events in Australia have shown that the industry is, broadly speaking, unprepared for decommissioning. Australian Regulatory Approach The Offshore Petroleum and Greenhouse Gas Storage (OPGGS) Act of 2006 and associated regulations provide the legal framework for the exploration and recovery of petroleum and greenhouse gas activities in Australian Commonwealth waters (those areas that are more than 3 nautical miles from the territorial sea baseline). The key principle underpinning the OPGGS Act and regulations is that responsibility for ensuring the health and safety of workers and the protection of the environment lies with those who create the risks. An objective-based regulatory regime sets requirements that must be achieved but does not prescribe how those requirements must be met. The National Offshore Petroleum Safety and Environmental Management Authority (NOPSEMA) has been established and appointed under the OPGGS Act as regulator for health and safety, structural (well) integrity, and environmental management of petroleum activities in Australian waters (3–200 nautical miles offshore) and in coastal waters (0–3 nautical miles offshore) where regulatory powers and functions have been conferred. Section 572, Maintenance and Removal of Property. Section 572 of the OPGGS Act establishes requirements for maintenance and removal of property by the titleholders, along with exemptions and obligation provisions. Section 572(2) of the OPGGS Act provides that a titleholder must maintain in good condition and repair all structures that are, and all equipment and other property that is, in the title area and used in connection with operations. Section 572(3) of the OPGGS Act provides that a titleholder must remove from the title area all structures that are, and all equipment and other property that is, neither used nor to be used in connection with the operations in which the titleholder is or will be engaged.

Soil Pollution Assessment of a Gas Flare Site in the Niger Delta Region

Aim: The aim of this research was to investigate the level of pollutants deposition on soil generated from a gas flaring site.
 Study Design: The Soil Samples for this study were picked from two sets of locations (a proposed gas flare site situated at Ogbogu Gas plant and two control sites sfrom a primary source of local farm lands). A total number of eighteen samples were collected from the five different sampling spots as designated using the global positioning system (GPs).
 A contaminated Site and three farm lands within Ogbogu and Ebocha community were mapped at 20m, 50m, 100m, 500m & 700m from the gas flare site and mapped with GPs location at two different sampling depths (0-15 & 15-30) cm.
 A Control Site and two (2) farm lands within Idu Ekpeye community were mapped outside the area of concentration from the gas flare sites. These locations were chosen to determine by comparative assessment, the impact of gas flaring on the soil properties of the contaminated sites.
 Place and Duration of Study: This study was carried out in Ogba/Egbema/Ndoni Local Government Area of Rivers State. This area was chosen for this study because of the high volume of petroleum activities. Oil and gas processing, production, transportation and utilization for power generation occur daily in the area resulting in numerous cases of environmental degradation and pollution.
 Methodology: This research explores and presents a method of analysing the environmental impact of gas flaring in the Niger Delta so as to provide the data required for the complete analysis and evaluation of the various observed and noted health and environmental effects of gas flaring in Niger Delta. Different samples at various proximities at 200m, 500m, 1000m, 5000m and 7000m from the flare site using a hand aguar equipment sampled at depths of (0-15)cm and (15–30)cm were taken and measurements and experimentations were meticulously carried out.
 Results: The results obtained in this research show a marked trend as all the parameters considered indicated a gradient away from the flare points in all the flow stations such as soil pH changing from acidic (4.0-4.2) to near neutral (6.4-6.6) away from the flare points and the average low soil moisture content of (17% - 23%) as against 40% for the (10m and 20m) and control distance. The quantity of carbon emitted by these flares are about 2,525,000.00 tonnes of carbon per day. These values portray a bad omen for the affected communities.
 Conclusion: Contamination of agricultural soils by trace metals creates a serious risk of the introduction of these xenobiotics into human food chain. The soil fertility is being reduced as this study has revealed an increase in temperature along-side an increase in gas flaring and flare distances.
 This study recommends that gas flaring should be seen as a violent action against the people and that the flared gas should be channelled to meeting the ever increasing demand for energy in the industrial sector of the economy.

Concurrent 15. Presentation for: Guidance document: Incident Management Teams – Knowledge requirements for responding to marine oil spills

Presented on Wednesday 18 May: Session 15 The National Offshore Petroleum Safety and Environmental Authority undertakes the assessment of environmental plans and oil pollution emergency plans for petroleum activities in Australian Commonwealth waters. In 2019, the Australian Petroleum Production and Exploration Association’s Oil Spill Preparedness and Response Working Group (OSPRWG) developed a work program to address identified Incident Management Team (IMT) training issues, with an aim to develop industry good practice guidance in relation to IMT skills, competencies and oil spill training. The OSPRWG has now produced a guidance document on IMT oil spill training, that was developed in collaboration with the Australian Marine Oil Spill Centre and peer reviewed by Oil Spill Response Limited. The guideline should facilitate a greater and more coordinated mutual aid IMT oil spill capability within the Australian offshore petroleum industry. To access the presentation click the link on the right. To read the full paper click here

Guidance document: Incident Management Teams – Knowledge requirements for responding to marine oil spills

The National Offshore Petroleum Safety and Environmental Authority undertakes the assessment of environmental plans and oil pollution emergency plans for petroleum activities in Australian Commonwealth waters. In 2019, the Australian Petroleum Production and Exploration Association’s Oil Spill Preparedness and Response Working Group (OSPRWG) developed a work program to address identified Incident Management Team (IMT) training issues, with an aim to develop industry good practice guidance in relation to IMT skills, competencies and oil spill training. The OSPRWG has now produced a guidance document on IMT oil spill training, that was developed in collaboration with the Australian Marine Oil Spill Centre and peer reviewed by Oil Spill Response Limited. The guideline should facilitate a greater and more coordinated mutual aid IMT oil spill capability within the Australian offshore petroleum industry.

THE USE OF BIO-MOLECULAR SUBSTANCE OF MARINE BIOTA AS AN ALTERNATIVE EARLY INDICATOR OF OIL POLLUTED ENVIRONMENT: A NEW APPROACH FOR MONITORING CONSIDERATION

THE USE OF BIO-MOLECULAR SUBSTANCE OF MARINE BIOTA AS AN ALTERNATIVE EARLY INDICATOR OF OIL POLLUTED ENVIRONMENT: A NEW APPROACH FOR MONITORING CONSIDERATION

Oil Shale of Rif region: natural adsorbents for environmental cleaning

Oils shales are the largest energy resource in the world and are widely used in the development of industrial fuel and petroleum activities. Oil shale is one of the important mineral resources in Morocco and it has a large reserve, the most important of which is of Timahdit, Tarfaya, and Tangier. Nowadays, the increasing concentration of toxic organic species (Antibiotics, Colorants) in soils and domestic, agricultural, and industrial wastewater has become a major environmental concern. for this reason, we have focused on the interactions of raw oil shale deposits with toxic organic species as part of an additional valuation of national energy resources. Our work is focused on the contribution of organic matter on antibiotic retention, as well as the role of hydrophobic interactions on the molecules-mineral surfaces. The results of the characterizations show the possible contribution of raw oil shales in the accumulation of organic pollutants in soil and water. Thermally treated oil shell powders can be good mineral sorbents for environmental cleaning.

Development of Adaptive Neuro-Fuzzy Inference System for Assessing Industry Leadership in Accident Situations

Petroleum activity is characterized as a high-risk activity due to the probability of accidents with material and human losses. The leaders of this segment assume, besides the complex routine tasks, the challenge of making assertive decisions during an accident. This study aims to present an evaluation model of the Industry Leadership Index for Emergencies Situations ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ILIE</i> ), using the Adaptive Neuro-Fuzzy System (ANFIS). The model was composed of 4 input variables, namely: knowledge, behavior, skill, and attitude; and one output variable, Industry Leadership. The data collection took place in petroleum production units in Brazil, with a sample of 151 respondents through the application of a survey. The observed data were treated in an Excel tabulator and used in the development of the ANFIS model. From this model, it was possible to carry out simulations to predict the impact, which the increase or decrease in the value of each input variable can influence the leader’s profile. The model performed satisfactorily in the Root of the Mean Square Error (RMSE) analysis, being 0.199 in data training and 1.217 in data verification. The results suggest that the ANFIS method can be successfully applied to establish a model to analyze industry leaders prepared for assertive responses in crisis scenarios.

Croatian Geoheritage Sites with the Best-Case Study Analyses Regarding Former Mining and Petroleum Activities

The revitalization and protection of industrial and natural heritage is an important part of the cultural identity of a society that respects its history and wants to build a prosperous and sustainable future. This paper describes four selected case studies of the successful revitalization and presentation of mining, geology, and petroleum heritage in the Republic of Croatia: a former quarry (Rupnica), two metal mines (St. Barbara Mine and Zrinski Mine) and one site of petroleum heritage (Peklenica and Selnica Petroleum Heritage Park). For revitalization strategy of selected areas, SWOT analysis and TOWS matrix were performed. Sub-strategy ranking was done through five key principles of geotourism. The strong and weak points of revitalized projects are indicated, as well as recommendations for the realisation of future geoheritage projects. This paper describes how a currently poor-mining country, which is intensively developing tourism, can protect, present, and promote its former industrial heritage, which is related to geoheritage. One of the main goals is to encourage all stakeholders to promote industrial heritage based on a simplified form of the mentioned analysis method and matrix.

Speaking up about safety concerns in high-risk industries: Correlates of safety voice in the offshore oil rig sector

Speaking up about safety issues – or safety voice – is a proactive response involving people at all levels of the organization who are willing to express their concern in response to perceived hazards. This study investigated psychosocial correlates of safety voice and effects of safety voice on safety measures. Drawing on Job Demand Resources theory (JD-R) we suggested that job resources in the form of supportive leadership and job control are positively associated to safety voice and that job demands are negatively associated with safety voice. Furthermore, we studied the association between safety voice and the outcome variables safety risk and personal injuries. Data were derived from the “Trends in risk level in the petroleum activity” (RNNP) survey and included 7505 respondents from the Norwegian offshore oil rig sector. As hypothesized, we found a negative association between job demands and safety voice and positive associations between safety voice and the resource variables leader support and job control. Moreover, safety voice behaviour was negatively associated with the outcome variables safety risk and personal injuries. An implication from these findings is that safety voice should be encouraged in the high-risk industries by nurturing healthy work environments in which employees have the capacity and support to speak up to prevent hazards.