Methane mitigation from the oil and gas (O&G) sector represents a key near-term global climate action opportunity. Recent legislation in United States requires updating current methane reporting programs for facilities with empirical data. While technological advances have led to improvements emissions measurements monitoring, overall effectiveness of strategies rests on quantifying spatially temporally varying more accurately than approaches. In this work, we demonstrate quantification,...

Government policies and corporate strategies aimed at reducing methane emissions from the oil gas sector increasingly rely on measurement-informed, site-level emission inventories, as conventional bottom-up inventories poorly capture temporal variability heavy-tailed nature of emissions. This work is based an 11-month measurement campaign production sites. We find that operator-level top-down measurements are lower during end-of-project phase than baseline phase. However, gaps persist...

A practical protocol for TBHP-mediated oxidative C–H cyanation of quinoxalin-2(1<italic>H</italic>)-ones utilizing ammonium thiocyanate as the cyanide source has been developed under metal free conditions.

Most jurisdictions around the globe use leak detection and repair (LDAR) programs to find fix methane leaks from oil gas operations. In this work, we empirically evaluate efficacy of LDAR using a large-scale, bottom-up, randomized controlled field experiment across ∼200 sites in Red Deer, Canada. We that tanks are single largest source emissions, contributing nearly 60% total emissions. The average number at treatment underwent reduced by ∼50% compared control sites. Although did not see...

An efficient photo-triggered halodecarboxylation reaction of aliphatic carboxylic acids for the preparation bromo-, iodo- and chloroalkanes under an air atmosphere with water as solvent has been developed.

Quantitative optical gas imaging (QOGI) system can provide rapid quantification of leaks detected by (OGI) cameras across the oil and supply chain. A comprehensive evaluation QOGI system’s capability is needed for successful adoption technology. This study conducted single-blind experiments to examine performance FLIR QL320 under near-field conditions at a pseudo-realistic, outdoor, controlled testing facility that mimics upstream midstream natural operations. The collected 357 individual...

Quantitative optical gas imaging (QOGI) system can rapidly quantify leaks detected by (OGI) cameras across the oil and supply chain. A comprehensive evaluation of QOGI system's quantification capability is needed for successful adoption technology. This study conducted single-blind experiments to examine performance FLIR QL320 under near-field conditions at a pseudo-realistic, outdoor, controlled testing facility that mimics upstream midstream natural operations. The completed 357 individual...

The photoinduced decarboxylative radical cascade alkylation/cyclization method with various benzimidazole moieties bearing unactivated alkenes efficiently synthesizes polycyclic benzimidazoles via LMCT processes.

The importance of reducing methane emissions from oil and gas operations as a near-term climate action is widely recognized. Most jurisdictions around the globe using leak detection repair (LDAR) programs to find fix leaks. In this work, we empirically evaluate efficacy LDAR large-scale, bottom-up, randomized controlled field experiment across ~200 sites in Canada. We that tanks are single largest source emissions, contributing nearly 60% total emissions. average number leaks at treatment...

Government policies and corporate strategies aimed at reducing methane emissions from the oil gas sector increasingly rely on measurement-informed inventories, as conventional bottom-up inventories poorly capture temporal variability heavy-tailed nature of emissions. This work is based an 11-month measurement campaign production sites. We find that basin- operator-level top-down measurements show lower during end-of-project than baseline 9-months earlier. However, gaps persist between which...

The power sector is the largest emitter of carbon dioxide in China, and coal-based energy structure presents an additional challenge to its decarbonization. Several studies have been conducted find cost-optimal pathways for low-carbon transition or individual plants, but few taken generation companies as a research topic. In this paper we addressed issue by building optimization model that can characterize companies, selected big company case study how economic technological factors drive...

Reducing methane emissions from the oil and gas sector is a key component of climate policy in United States. Methane leaks across supply chain are stochastic intermittent, with small number sites ('super-emitters') responsible for majority emissions. Thus, cost-effective reduction critically relies on effectively identifying super-emitters thousands well millions miles pipelines. Conventional approaches such as walking surveys using optical imaging technology slow time-consuming. In...

Abstract Under the constraint of peak carbon dioxide emissions before 2030 and neutrality 2060, current status economy, social demography, energy consumption, industrial structure, intensity power consumption in southern China is analyzed, scenario analysis method built, three policy scenarios affecting electrification under goal peaking are designed for future demand China, implementation path new that can achieve proposed.

Government policies and corporate strategies aimed at reducing methane emissions from the oil gas sector increasingly rely on measurement-informed inventories, as conventional bottom-up inventories poorly capture temporal variability heavy-tailed nature of emissions. This work is based an 11-month measurement campaign production sites. We find that operator-level top-down measurements are lower during end-of-project phase than baseline phase. However, gaps persist between which we reconcile...

Capturing leaked methane can be a win for both firms and the environment. However, are uncertain about leakage amounts, site visits to measure repair costly. We study an experiment which randomized whether operators were informed of site-level amounts. find that at sites with zero baseline leakage, giving information emissions \emph{increased} endline. At high we do not statistically significant treatment effects.