... Abstract The operator has successfully drilled and completed more than fifty horizontal oil wells in the subnormally pressured Gallup Sandstone (Mancos Formation) within the San Juan Basin, New Mexico. All the wells were fracture stimulated using 70% quality Nitrogen (N2) foam with 20/40 sand...

...-East Asia; and additionally, with the development of the Frac-Pack technique, delivery of a key sand-control completion method, crucial to GoM, Brazil and Global soft-rock oil production delivery. The paper will describe a range of requirements behind each consideration of deployment of the TSO...

... Abstract Significant attention has been placed on well-to-well interactions since the beginning of infill development in unconventional plays. Asymmetry of hydraulic fractures toward pressure-depleted parent wells has been attributed to poor performance of early in-fill completions ( Xuyang et...

... hydraulic fracture oil uplift conductivity hydraulic fracturing design optimization dimension proppant fracturing materials interaction breakthrough completion fracture conductivity Literature Review Naturally Fractured Reservoirs (NFR) Although NFRs notionally constitute a specific...

... Since the industry started completing horizontal wells, modeling of stimulated horizontal well performance has been an important tool for optimizing well designs. Productivity of longitudinally fractured horizontal wells was investigated analytically ( Larsen and Hegre 1994 ), semi-analytically...

... diagnostic measurements were deployed to evaluate the productivity of each design. The secondary objective of this project was to evaluate completion efficiency and effectiveness (i.e. – stage uniformity). Variability in completion effectiveness was evaluated using the 26 seven cluster stages, while...

... Leaking plugs have also been observed in the field during plug-and-perf completions. Fiber-optics have clearly shown that there is direct communication from one stage to the previous stage through way of a leaking bridge plug ( Molenaar and Cox 2013 ). A leak in a bridge plug occurs when...

... of individual clusters and stages during the completion in the near-field wellbore environment. Ideally, a second fiber or multiple fibers can be deployed in offset well(s) to monitor and characterize fracture geometries recorded by fracture-driven interactions or frac-hits in the far-field. Fracture opening...

... to investigate well-to-well interference, optimize treatment design, and potential well spacing improvements. Parent Wells Hydraulic Fracture Model Construction A hydraulic fracture model was developed using GOHFER to simulate the completions of the two offset horizontal parent wells. The model...

... Abstract This paper demonstrates how to use pressure data from offset wells to assess fracture growth and evolution through each stage by quantifying the impacts of nearby parent well depletion, completion design, and formation. Production data is analyzed to understand the correlation between...

... diagnostics. This technology focuses on measuring Distributed Acoustic Sensing (DAS) and Distrusted Temperature Sensing (DTS) to give an in-depth understanding of well productivity pre and post stimulation. Many different completion design strategies, both on surface and downhole, are used to obtain the best...

... The unit was completed in four phases, drilling and completing four wells at a time. The primary set of wells (1H through 4H) were drilled in the eastern half of the unit with ∼1320 ft spacing in zone and ∼660 ft spacing between zones. These wells were completed in July 2013. The second set...

... Abstract Selecting appropriate proppants is an important part of hydraulic fracture completion design. Proppant selection choices have dramatically increased in recent years as regional sands have become the proppant of choice in many liquid-rich shale plays. But are these new proppants...

..., that are inherently linked to the completion operations and specifically hydraulic fracturing. The examples will describe the completion operations sequence(s) as they unfolded, the growing evidence that the reservoir access was deteriorating, the surveillance performed in support of Root Cause Failure Analysis (RCFA...

.... As a result, a 1500 lbm/lat-ft design was selected with a linear-crosslink gel hybrid fluid system, with a focus on maximizing proppant concentration. Historically, this play was completed as tightly spaced vertical wells, that were hydraulically fractured, and then re-fractured. In the past 10 years...

... fracture conductivity and flowing length. Upstream Oil & Gas completion DFIT Modeling & Simulation drillstem/well testing fracture conductivity hydraulic fracture hydraulic fracturing lateral History Match fracture treatment grid fracture mdd permeability reservoir model...

... Abstract Over the past decade the shale revolution has driven a dramatic increase in hydraulically stimulated wells. Since 2010, hundreds of thousands of hydraulically fractured stages have been completed on an annual basis in the US alone. It is well known that the geology and geomechanical...

... criteria. The principle driver being to maximise the chance of success via an appropriately risk-minimised well design concept utilising, as far as possible, standard, field proven tools and techniques. The completion design criteria for the well were fundamentally carried from the previous (single lateral...

...Job Execution The refrac and infill wells were prepped, hydraulically fractured, then drilled out and turned on to production. Details from the execution of these completion phases are discussed in the following sections. Well Prep Prior to refracturing, a cleanout run with coiled...

... on line. In reality, with typical over flush volumes, any resin-coated sand pumped during a slick water treatment will travel far away from the wellbore. hydraulic fracturing completion correct proppant fracturing fluid small proppant fracturing materials Upstream Oil & Gas operation...