Press Esc to close



Special Focus


  • 2013 Louisiana Gulf Coast Oil Exposition

    Roger Jordan

    The 29th Louisiana Gulf Coast Oil Exposition (LAGCOE) will take place in Lafayette, La., later this month. The three-day biennial event, which first became a feature in the industry’s calendar during 1955, will be held at Lafayette’s Cajundome & Convention Center between Oct. 22 and Oct. 24.

  • 3D geomechanical modeling, wellbore stability analysis improve field’s performance

    Li Qiuguo, Xing Zhang, Khalid Al-Ghammari, Labib Mohsin, Fadi Jiroudi, and Ahmed Al Rawahi

    As demonstrated in a field onshore Oman, utilization of 3D geomechanical modeling can identify problems in the potential wellbore path that can make the difference between financial success and failure at the wellsite

  • 40 years later: Legacies of the 1973 oil crisis persist

    Jill Tennant

    On the 40th anniversary of the 1973 Arab oil crisis, the after-effects of the upheaval still linger in policies and attitudes across the global oil and gas industry.

  • Are we over-fracturing horizontal shale wells?

    Ali Daneshy

    Are we over-fracturing horizontal shale wells?

  • Assumptions from reservoir simulation have big impact on hydrofrac results

    Martin T. K. Soh, and Azhar Al Kindi

    Hydraulic fractures can enhance well productivity, ultimate recovery and economics. Although reservoir simulation can quantify hydrofrac performance, simulation outcomes vary. A case study in Oman shows that considerable uncertainty can be removed by understanding the impact of flow dynamics, reservoir architecture, and gridding assumptions, thereby saving time and facilitating planning.

  • Harsh, complex formations, longer laterals drive innovation

    Henry Terrell

    Efficient drilling of challenging intervals has been a limiting factor to the economic development of a large amount of hydrocarbon reserves. However, from a drilling standpoint, the objectives remain the same—optimizing ROP, improving drilling efficiency and reducing drilling costs.

  • Haynesville bossier shale signs of life starting to emerge

    Jim Redden

    Ragan Dickens counsels those ready to wrap a “Rest in Peace” wreath around the once-venerable Haynesville-Bossier shale, to look well beyond its current ill health. “It’s not going to return tomorrow, but we have stability for the long term,” says Dickens, North Louisiana director of the Louisiana Oil and Gas Association (LOGA).

  • Intelligent tracers quantify in-flow characteristics in multi-zone horizontal wells

    Brent Brough

    Crude oil producers are responding to the reservoir management challenges of multi-zone horizontal wells with intelligent tracers that quantify inflow distribution on a zone-by-zone basis. The inflow distribution analysis from a recent well, equipped with RESMAN RES-OIL intelligent tracers, shows that about half of the total inflow came from only two segments (7 and 8) of a 9-zone well, Fig. 1. RESMAN data also identified two low-producing zones (4 and 5), accounting for only 3% of total inflow. The operator was expecting a more even inflow distribution, and used this knowledge to reassess the reservoir drainage properties and adjust drilling and completion strategy for future wells in the field.

  • Iran feels the pinch from sanctions

    Ian Lewis

    Iran has ambitious plans to boost its oil and gas output. However, given the current geopolitical climate, and continuing economic sanctions, those plans are far from assured.

  • Large-bore, HP tubing-retrievable safety valves qualified for gas wells

    Mohammad A. Ali and Abdulrahman S. Ahmari

    The world’s first 95/8-in., 10,000-psi-rated, tubing-retrievable subsurface safety valves were qualified for use in two major high-pressure, non-associated gas discoveries offshore Saudi Arabia

  • Modular reed valves improve efficiency for gas gathering and distribution

    Zahroof Mohamed

    A new valve design for reciprocating gas compressors has been shown to deliver compressor power savings in pipeline transmission applications, increase reliability by a factor of two and reduce inventories by at least 80%.

  • Proppant with ultra-high strength, sphericity and smoothness for fracing deepwater tight sands

    Pramod Kulkarni

    A new, high-Alumina proppant, pelletized through a proprietary manufacturing process, provides ultra-high strength, spherical shape and smoothness, and twice the baseline conductivity of bauxite proppant, to meet the requirements of deepwater Lower Tertiary fracing.


    John Tarris

    Cautious optimism prevails, despite political problems, social unrest and mixed exploration results


News & Resources



Engineering Data Tables

World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.


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...