... of sample, and could possibly be integrated to field logs in the future. Obtained knowledge can be applied by engineers and researchers working with shale formations around the world. structural geology drilling fluids and materials upstream oil & gas fluid loss control wellbore design...

... Abstract It is estimated that only one third of the remaining worldwide oil and gas reserves are conventional, the remainder being in unconventional reservoirs whose evaluation requires appropriate measurements delivered in a cost-effective way. In the case of shales and other tight reservoirs...

... Abstract The mechanisms of shale gas storage and flow are complex. Understanding the microstructure is an important step for evaluating a new shale gas play toward accurate reserve estimation and recovery prediction. The emphasis of this paper is study on the micro-fractures observed...

... Abstract Oil and gas-bearing shale formations have received a great deal of interest in recent years, especially in North America. Oil and gas from shale could make a significant contribution to global hydrocarbon production. However, their development has been hindered by the complexity...

... Abstract Economic production from shale has been intimately tied to hydraulic fracturing since the first signs of success in Barnet Shale in the late 90s. The introduction of horizontal wells and multi-stage hydraulic fracturing was met by a huge move by operators towards developing shale...

... Abstract Shale makes up 75% of drilled formations and causes over 90% of wellbore instabilities. Although drilling fluids with acceptable performance in Shale have been formulated, the industry is still endeavouring to formulate an optimum inhibitive drilling fluid for the Marcellus Shale...

.... The core holder accommodates cylindrical core slices that are 25-26 mm in diameter and 0-10 mm in thickness, at pressures up to 3,000 psi (207 bars or 20.7 MPa). Core Samples, Oils, and Brine The shale rock plugs are from the Odanah member of Pierre shale. Generally, this light grey shale is mostly...

... Abstract Shale gas plays are very active and there is little time available for the practicing engineer to spend on well studies that would describe the effectiveness of particular treatment chemical additives. Each shale play has variations within its own lithotypes and mineralogy suite...

... Abstract EQT Production has been an active driller in the Lower Huron Shale in the Appalachian basin for nearly 100 years and has close to 5000 producing vertical wells in Kentucky alone. In 2006, EQT began drilling horizontal wells and has drilled over 400 Lower Huron Shale and over 100...

... Abstract Over the last two years the increase in openhole interventionless horizontal completions in the shale markets has lead to higher production rates at lower completion costs for operators. In areas where wells are being air-drilled, specific techniques of using hydraulic set packers...

... Abstract The Lower Huron Shale can take claim as one of the earliest discovered sources of natural gas. As with all the shales though, extracting its reserves has been the challenge. To start, the physical properties of shale are not the same as typical sandstones, limestone, and siltstones...

... Abstract Many shale plays are being successfully developed throughout North America. These shale plays are being evaluated based on a number of criteria, but primarily through typical unconventional and tight formation gas reservoir characteristics. Prospective shale plays share several...

... & Gas PDC bit shale bit design cutter air drilling bit selection spe 117695 deviation PDC roller cone bit liquid drilling fluid Appalachian Basin drilling operation penetration rate Drilling Performance Gain air foam application application operator society of petroleum engineers...

... Abstract This paper presents the findings of a laboratory investigation of the thermomechanical behaviour of anisotropic rock. The tests were performed on natural (Tournemire shale) using triaxial cells modified to control and to go to high temperature. The range of temperatures that were...

... in overpressured Mid-Alberta shales, we developed a pore pressure prediction method based on over-consolidation theory. We tested the method with sonic logs and the method gave promising results for establishing pore pressures in the over-consolidated Alberta basin. Reservoir Characterization normal...

... Abstract Formation evaluation (FE) while drilling is an established technique in horizontal well orientations for unconventional reservoirs such as the Barnett Shale. Due to constrained well economics, special care is taken to acquire cost-effective information quickly to maximize lateral...

... Abstract This work explores, using reservoir simulation, the impact of reservoir architecture on CO 2 plume movement and the reservoir's storage capacity. Subsurface flow of CO 2 in the presence of shale "baffles", or lack thereof, will be reviewed in conjunction with other reservoir...

... include proximate analysis and bulk density measurements of all samples. Shales are commonly analyzed for total organic carbon in lieu of proximate analysis. The gas content is estimated by placing selected freshly cut reservoir samples in air tight sealed canisters and measuring desorbed gas volume...

... behavior under vertical loading, including stress propagation inside the rock, deformation and damage evolvement as well as how cemented casing behaves under these conditions. reservoir geomechanics strength shale plastic flow Wellbore Design salt formation horizontal stress wellbore integrity...

... Abstract Fort Worth Basin Barnett Shale fiscal success and completion methodology have matured to the point that analog plays all over the North American continent are being actively sought and tested. It is probable that additional potential plays outside the current active areas exist...