Technical Papers

Tech Paper: Frac-hits Mapped by Tube Waves: A Diagnostic Tool to Complement Microseismic Monitoring

Innovative use of microseismic data to understand direct frac fluid hits at offset wells This paper presents a method for detecting and analyzing tube waves recorded from a downhole geophone array as a hydraulic fracture grows toward and hits the observation well. Examples from both horizontal and vertical monitor wells are presented. An analysis of tube waves provides additional and independent fracture diagnostics...

Tech Paper: The Final Piece of the Puzzle: 3D Inversion of Ultra-Deep Azimuthal Resistivity LWD Data

3D earth models reveal a reservoir’s true structures, allowing for informed geosteering decisions and accurate well placement Optimal well placement requires three-dimensional (3D) spatial knowledge of the reservoir formation and fluids. Current one-dimensional (1D) inversions of ultra-deep azimuthal resistivity logging-while-drilling (LWD) data recover formation boundaries above and below the wellbore, which are stitched together to form pseudo-2D models (or “curtain plots”) along the...

Tech Paper: Improved Completion Economics Through Real-time, Fiber Optic Stimulation Monitoring

Successfully installed single fiber-optic equipped well provides useful feedback on completion designs This paper demonstrates how a single permanent fiber installation allowed the development of improved completions designs in real time in order to improve well economics. Design changes were adjusted during the completion of the well to determine stage length and completion execution. Improvements were applied to the subsequent wells in the...

Tech Paper: Evolution of Frac Plug Technologies – Cast Iron to Composites to Dissolvable

The impact of the evolution of the frac plug over the past 20 years A technological revolution in hydraulic fracturing has occurred between early wellbore stimulation techniques and present day stimulation that has reduced cost and increased stimulation performance. Part of this revolution has been driven by the improved technology of frac plugs. This paper discusses how the evolution from cast iron frac...

Tech Paper: Estimation of Capillary Pressure and Relative Permeability from Downhole Advanced Wireline Measurements for Waterflooding Design

New workflow developed to help estimate relative permeability and capillary pressure in downhole conditions Reservoir relative permeability and capillary pressure, as a function of saturation, is important for assessing reservoir hydrocarbon recovery, selecting the well completion method, and determining the production strategy because they are fundamental inputs to reservoir simulation for predicting lifetime production of a well. Estimation of relative permeability and capillary...

Tech Paper: Reliable Detection and Power in an Electronic Sliding Sleeve Multistage Completion System

New electronic sliding sleeve helps increase flexibility, reliability, mechanical simplicity, and robustness for multistage hydraulic fracturing A new electronic sliding sleeve has been developed for hydraulic fracturing that provides the operational efficiency of sliding sleeves while enabling an unlimited number of fracturing zones and eliminating the milling of the baffle seat. This system uses electronic sensors and battery power to determine when the...

Tech Paper: Continuous Use of Fiber Optics-Enabled Coiled Tubing Used to Accelerate the Optimization of Completions Aimed at Improved Recovery and Reduced Cost of Development

Halliburton Helps Operator Increase Production by up to 25% with Fiber Optics-Enabled Coiled Tubing Continuous improvement in completions designs leading to an increased return on asset development is one of the primary focuses of operating companies. To continue driving towards this goal, an operator looked to continuously optimize completions designs in their acreage in Bakken, North Dakota. There were two parallel paths taken...

Tech Paper: Unconventional Multiplay Evaluation of Casing-in-Casing Refracturing Treatments

Halliburton successfully implements casing-in-casing refracturing treatments in the Haynesville and Eagle Ford Shale Throughout the development of major shale plays, a better understanding of stimulation influence on reservoir productivity has led to significant changes in industry completion practices. The relatively fast development of fields combined with the evolution of completion design suggests the completions performed on the earlier completed wells are understimulated and...

Tech Paper: An Integrated Formation Evaluation Approach to Characterize a Turbidite Fan Complex

Advanced integrated analysis helps reduce overall formation evaluation costs and saves rig-time The oil and gas potential of the basins surrounding the Falkland Islands has attracted exploration drilling that resulted in discovering the Sea Lion Field in the North Falkland Basin in May 2010. Recent exploration drilling has resulted in new oil discoveries to the south of the Sea Lion Complex that has...

Tech Paper: A New Ultra-deep Azimuthal Electromagnetic LWD Sensor for Reservoir Insight

New tool helps optimize well placement during the development of a reservoir In the development of a reservoir, optimizing the well placement in the desired formations from pre-well modeling techniques is a challenging task. Existing well-planning techniques, such as offset well logs or surface seismic data, do not provide the required level of accuracy and can result in high uncertainty in geosteering decisions. Conversely,...

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