Total (France)

Over the past decade, high-quality industrial 3D seismic surveys acquired along both the northern (Lei et al., 2018; Zhang et al., 2020) and southern (Legeay et al., 2024) rifted margins of the South China Sea (SCS) have imaged and documented the development of low-angle normal faults (

Abstract The impacts of stress on the integrity of pipelines have been studied extensively in literature.1 2 Less well known are the impacts of stress on the pipeline coatings. Sufficiently high soil stresses applied to a pipe coating cause disbondment, drastically reducing a pipe’s corrosion resistance – and consequentially, its operational lifetime. Disbondment can occur even at stresses that do not compromise the pipeline’s operational integrity. Given the difficulty in detecting and mitigating corrosion under disbonded (CUI) coating, it’s important to understand all potential sources of soil stress that can cause coating disbondment; problems are especially pronounced in softer soils and coatings, making the choice of coating critical depending on the operational environment. In this work, we discuss the impact of dynamic, and overburden loads on soft polyethylene (PE) wrapped coatings, and the circumstances that can lead to coating failure.

Abstract Some formation damage mechanisms remain difficult to understand with common laboratory procedures. A lot of experimental work has been done in these last decades to encircle the main mechanisms governing the formation damage due to PWRI. Nevertheless, the relationship between solid particle deposition profiles, their sizes, and permeability reduction is still not well understood. This work is issued after a few years of collaboration between TotalEnergies and UGIEL, a French start-up specialized in coloring particles of different natures for Jewelry, aiming to test a new generation of colored and fluorescent solid particles to better understand formation damage mechanisms induced by Produced Water Reinjection (PWRI). The main objectives are to gain insights about deposition or invasion profiles of solid particles in the presence or not of oil in suspension. It is also a question to validate the theory of deep bed filtration commonly applied in the oil and gas industry. This paper describes the technology applied by UGIEL for particles coloration, and the dedicated core flooding tests program conducted by TotalEnergies to characterize the internal damage using colored and fluorescent silica particles with and without the presence of oil in suspension. This paper exhibits valuable results of damaged core plugs from post-mortem visualization, which have been subsequently completed with image processing and laser diffraction analysis. These analyses exhibit relevant findings of solid particles deposition profiles within the porous media. Additionally, the injection of suspensions containing fluorescent particles and oil has provided valuable insights into internal damage visualization under specific lighting conditions. This new generation of particles can provide more data than the pressure drop measurements analysis and can be used to validate the predictive models related to wells injectivity.

Abstract This study investigates how mechanical and chemical engineering curricula worldwide are adapting to the energy transition by integrating renewable energy, carbon capture and hydrogen technologies, digitalization/AI, and sustainability. A global survey was distributed to 1000+ universities and directed to academic leaders and curriculum committees; 18 early responses were analyzed and benchmarked against a petroleum-engineering study reporting 82% of programs updated in response to energy expansion. Preliminary results indicate adaptation is underway but uneven: 72.2% of programs report partial integration, 22.2% report full integration, and 5.6% report none, with two-thirds of “partial” adopters at ≤25% curriculum coverage. Change occurs within existing structures (no reported department name changes) and spans multiple tiers: 50% cite updates across BSc + MSc + PhD. By level, BSc emphasizes broad exposure, with Sustainability 83.3%, Renewables 77.8%; MSc shows deeper technical expansion, with Sustainability 66.7%, Renewables 66.7%, CCUS/H₂ 66.7%, AI 44.4%; PhD shifts remain selective, with Renewables 38.9%, AI 38.9%, Sustainability 33.3%, with 44.4% reporting no change. These early signals suggest mechanical/chemical programs are directionally aligned with petroleum's transition topics but lag in depth, especially on CCUS/H2 at scale and explicit climate content, highlighting the need for ready-to-adopt materials and cross-level coherence to accelerate reform and better prepare engineers for emerging energy demands.

This paper investigates the mitigation of renewable generation curtailment through coordinated reactive power control, comparing inverter-based support from wind farms with a Static Synchronous Compensator (STATCOM), a Flexible AC Transmission System (FACTS) device. The objective is to assess the effectiveness of both strategies in enhancing voltage stability and ensuring system security under stressed operating conditions, while reducing curtailment and avoiding costly transmission reinforcements. A case study on a 500 kV transmission line contingency in the Northeast subsystem of the Brazilian Interconnected Power System (BIPS) is presented. Steady-state simulations using ANAREDE and dynamic analyses with ANATEM, both developed by the Brazilian Electrical Energy Research Center (CEPEL), revealed that wind farms close to the faulted line were disconnected due to undervoltage protection. Additional simulations compared system performance with reactive power support provided by wind farms and by the STATCOM. The results show that both approaches maintained voltage within emergency limits, though their performance, control flexibility, and system-wide impacts differed significantly. Overall, coordinated reactive power support, whether from renewable plants or a STATCOM, proved to be an effective preventive measure to mitigate curtailment risks and reinforce voltage security. These findings also support ongoing efforts to design incentive mechanisms that enable intermittent generation to provide ancillary services.

BUMDes adalah usaha berbadan hukum milik desa dikelola pemerintah desa yang disesuaikan kebutuhan dan potensi desa, dalam kepengurusan BUMDes terdiri dari pemerintah desa dan masyarakat desa setempat. Tujuan berdirinya BUMDes sesuai dengan Permendesa PDT dan Transmigrasi No. 4/2015 untuk meningkatkan perekonomian desa, serta meningkatkan berbagai potensi ekonomi yang ada, Desa Ngareanak selama ini belum mempunyai BUMDes sehingga perlu menampung potensi kekayaan desa dan berdampak pada kesejahteraan masyarakat desa Ngareanak. Pelatihan dan pendampingan ini dihadiri 26 peserta dari kalangan perangkat desa, karang taruna, tokoh masyarakat dan petugas pendamping inovasi desa, dengan materi penyuluhan dan pendampingan pembentukan BUMDes Desa Ngareanak, Kecamatan Singorojo, Kabupaten Kendal, hasilnya draf pengidentifikasian awal tentang potensi usaha yang dimiliki Desa Ngareanak dan penyusunan time schedule pembentukan BUMDes Desa Ngareanak, Kecamatan Singorojo. Kesimpulannya peserta mengetahui potensi potensi desa yang ada, mampu mengembangkan potensi desanya dengan jenis usaha yang akan dilaksanakan atau dikembangkan melalui pengelola BUMDes dan berdampak pada kesejahteraan masyarakat Desa Ngareanak.