... closure was observed using the so-called "tangent" method in all DFIT tests. However, the "tangent" method using a signature close to the peak Gd P /d G tends to significantly underestimate S 3 . The "compliance" method offers a relatively objective (yet still low) estimate of closure pressure. However...

... Abstract Identifying the distributed strain sensing (DSS) patterns (signatures) associated with various hydraulic fracture simulations have been the subject of much interest and investigation. Recent efforts have focused on developing a catalogue of signatures for planer hydraulic fractures...

... production logging reservoir surveillance upstream oil & gas hydraulic fracturing well logging production monitoring production control dart casing and cementing completion installation and operations log analysis mechanism frac plug darts efficiency signature technology conference...

... fracture spacing. These wells need not exhibit clear signatures for bilinear/linear flow before the onset of SRV boundary dominated flow due to fracture interference. These models have relatively few parameters and unlike a purely data driven analysis, the parameters are simple to interpret. The ability...

... fraction of frac water in the collected produced water samples from an offset parent well can be up to over 45% and remain above 20% for about 3 months, produced water from child wells showed dominant signatures of formation water from the initial flowback/production stage. The estimated cumulative volume...

... Abstract 4D DAS VSP is a real-time in-situ monitoring technique of stimulated rock volume in unconventional shale reservoirs. Latest field experiments using active seismic sources and wells permanently equipped with fiber optic have shown promising 4D seismic signatures to monitor the growth...

... characterization reopen period urtec 5436 production control production logging drillstem testing signature unconventional resource technology conference perforation location wellbore pressure texas permeability paper presented strain change shut-in period upstream oil & gas case 2 fiber base...

... cause poor hydraulic fracture efficiency. drilling data acquisition reservoir characterization well logging complex reservoir log analysis fracture characterization depletion composition upstream oil & gas halo drilling measurement hydraulic fracturing infill well signature...

... phases, including gas condensate and also differentiate between multiple liquid signatures. Consequently, one of the benefits of the methodology is that it measures moveable hydrocarbons, not nonmovable petroleum components that are included in Total Organic Compounds (TOC) results. This case study...

... risks posed for the storage project. In addition, the data Raman assessment provided on mineralogy, clay types, and authigenic mineral character and distribution was useful for determining diagenetic history and identifying reactive species. Figure 1 shows the Raman signature for quartzite, mica...

... characteristics and mechanisms causing the differences to not be well understood, which makes the interpretation of real LF-DAS data and detection of fracture hits much challenging. Hence, it is necessary to relate the observed strain/strain-rate signatures to specific fracture patterns based on the physical...

... reservoir characterization outcrop sample fracture stiffness monitoring signature hydraulic fracturing geochemical alteration alteration time-lapse acoustic monitoring reaction proppant emplacement artificial fracture fracture alteration geochemical fracture alteration fracture permeability...

... variability structural geology production allocation core extract maturity ul 20 core material wolfcamp signature target zone URTeC: 2166 A Statistical Approach to Understanding Fluid Geochemistry Changes in Unconventional Plays Craig D. Barrie1*, Catherine M. Donohue1, J. Alex Zumberge1...

... logging. To improve the reliability of NMR based saturation, an inversion-forward modeling-inversion method is applied to ensure the signatures of organic vs non-organic fluids are adequately separated on 2D maps, and the stacking window on the NMR log is selected such that the vertical resolution of NMR...

... correlation and lithological control at scales just above (core), to just below (cuttings) the scale of most downhole log suites. The significance of this approach is that it can be used to 1) refine rock signatures in well logs, and 2) resolve questions regarding stratigraphic succession and correlation...

... unconventional resource economics Rift Basin facies porosity variation basin average thickness petroleum system storage capacity oil window Barmer Hill Formation source rock kerogen separation deposit Thickness Barmer Basin Signature hydrocarbon lbh formation URTeC: 537 Integrated Approach...

... and an 85﹪ improvement over a high-density geometric design. hydraulic fracturing Completion Installation and Operations proppant Treatment Schedule uplift fracturing materials fracturing fluid Upstream Oil & Gas upper wolfcamp perforation cluster MSE fracture system URTeC Signature...

... Upstream Oil & Gas bedding plane slip Reservoir Characterization friction bourdet ppd hydraulic fracturing coefficient reservoir geomechanics Signature fracture pressure hydraulic fracture gradient pressure gradient diagnostic fracture injection test equation radial flow...

... Reservoir Surveillance ball seat production monitoring Upstream Oil & Gas completion Signature information fiber production logging bridge plug pressure spike das molenaar plug DTS production control hydraulic fracturing Effectiveness perforation cluster operation...

.... , Cumella , S. , Dolan , M. P. , 2014 . Using Production Gas Carbon and Hydrogen Stable Isotope Signatures to Predict Fluid Quality: Wattenberg Field Colorado USA . Paper presented at the SPE Western North American and Rocky Mountain Joint Meeting . Zumberge , J. Ferworm , K...