Featured this monthNiobrara Ramps Up To Hot Play For LiquidsThe Niobrara Shale in Colorado and Wyoming is turning into a hot play that could bring an explosion of horizontal drilling, while offering additional targets in stacked formations above and below it.
Guest Editorial Moving forward in any industry requires innovation and creativity—and risk taking. Some of the ways to accomplish this may lie in lessons learned from other sectors. Andrea Feunekes of Remsoft and Kevin O’Marah of Stanford University explain what the forestry industry can offer.
Water & Data & Well: Three Keys to E&P’s Future SPE’s six technical directors are focusing on speeding the adoption of new technology needed to overcome three key challenges facing the upstream sector: water, well integrity, and data-driven improvement.
Making Sense of the ‘Overnight’ Shale Gas Revolution The worldwide shale gas revolution is gradually taking shape. But the shale gas story in North America took 30 years to develop, and each country that is a prospective for shale gas is following its unique revolution trajectory.
Management Energy Equity Resources CEO Satinder Purewal explains how the SPE’s Oil and Gas Reserves Committee’s new guidelines bring clarity to the classification of oil and gas reserves and resources.
Technology Today Series Pore-pressure prediction must be accurate for drilling exploratory wells in weaker rocks or subsalt formations. This workflow helps maintain wellbore stability.
Stéphane Menand, SPE, Managing Director, DrillScan USSince the first downhole electric measurement was made in 1927 by the Schlumberger brothers (first electrical-resistivity well log), the oil/gas industry has been striving to develop and improve new tools and sensors for downhole measurements. Indeed, these sensors aim at measuring many parameters, such as physical properties of rocks and fluids (formation evaluation), wellbore position (inclination and azimuth), or downhole drilling-mechanics conditions.
Hydraulic Effect of Tool Joints on Annular-Pressure Loss For a successful drilling operation, downhole-pressure, or equivalent-circulating-density (ECD), control is critical. Conventional drilling techniques require maintaining the bottomhole pressure (BHP) at a level between the pore and fracture pressures. In deepwater wells, the margin between these pressures is very narrow; therefore, the BHP and ECD must be predicted accurately and be maintained within that narrow […]
Drillpipe-Dynamics Measurements—Insight Into Drillstring Dysfunctions The drilling industry has become increasingly interested in drilling dynamics and in vibration as a cause of reduced drilling performance and downhole-tool and drillstring failures. Vibration data have been captured with measurement-while-drilling (MWD) tools in the lower bottomhole assembly (BHA). However, this approach is not always sufficient to understand the drillstring dynamics of more-complex applications. […]
Automated Alarms for Managing Drilling Pressure and Maintaining Wellbore Stability With the increased complexity of wells being drilled, significant geologic uncertainty may be encountered during wellbore construction. Uncertainty can take the form of unplanned drilling events such as kicks, lost circulation, and borehole-stability problems. A more proactive effort to predict and identify trouble zones in real time could lead to a substantial reduction in nonproductive […]