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Special Focus


  • Web Exclusive: Analysis of EPA's proposed clean air restrictions on oil and gas operations

    Richard H. Osa and Todd E. Palmer

    The Environmental Protection Agency (EPA) recently introduced a suite of rules regulating air emissions from oil and gas production—including hydraulically fractured wells. Once these rules are finalized, they may impose more stringent permitting and operating constraints.

  • China spews fire at India-Vietnam E&P pact

    Raj Kanwar

    ONGC Videsh Ltd. (OVL), the overseas arm of India’s state-run oil major Oil and Natural Gas Corp., entered a historic cooperation agreement Oct. 12 with PetroVietnam, the national oil company of the Socialist Republic of Vietnam.

  • Dual-injection frac systems in horizontal wells

    Ali Daneshy

    Dual-injection frac systems include either a coiled or standard tubing string inside the casing and allow fluid injection through both the internal string and the casing-tubing annulus.

  • International fracing controversy stalls European shale

    Pramod Kulkarni

    The natural gas shale gale that was supposed to sweep across Europe has stalled in England and France due to an impasse over fracing operations.

  • Regional Report: China

    Nell Lukosavich

    China boasts the world’s largest shale gas reserves and enormous new offshore resource potential, but geopolitical tensions and environmental concerns threaten to slow China’s E&P development

  • Industry Report: Research efforts aim to improve Arctic transport for E&P operations

    Sandy McSurdy and Chandra Nautiyal

    Optimizing ice road networks through better understanding of water availability and environmentally sensitive areas will expedite the development of oil and gas reserves on Alaska’s North Slope.

  • Rig innovations focus on safety, reliability

    Equipment manufacturers and drilling contractors continue to emphasize safety, performance and environmental responsibility in new rig floor equipment and new or enhanced drilling rig designs.

  • What industry leaders expect in 2012

    Despite high oil prices and a shale-driven boom in drilling activity, the approach of a new year brings with it plenty of reasons to be concerned for the future of the oil and gas industry.


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2013 Fracturing Technology

2013 Fracturing Technology


By Digital Publisher

Drill Bit Classifier World Oil published its renowned Drill Bit Classifier in September 2013. The Drill Bit Classifier is a comprehensive listing of major manufacturers' d...