Technical papers

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Hydraulic Fracture Height Estimation in an Unconventional Vertical Well in the Vaca Muerta Formation , Neuquen Basin, Argentina (SPE 179145)

​One of the major uncertainties in the analysis of unconventional well productivity is the estimation of the hydraulic fracture height generated during stimulation operations. This study was carried out in a well located in the Neuquen Basin, Argentina with main focus on the development of unconventional shale oil.

Dry Utica Proppant and Frac Fluid Design Optimization (SPE 184078)

The Dry Utica play is an exciting unconventional gas development currently unfolding in the Appalachian Basin. Published results for several wells exceed an average Initial Production (IP) rate of 60 MMcf/day.

Ceramic media improves quality, increases value in lost foam casting

For years, naturally occurring silica sand has been the most widely used molding mediain the metal casting industry, due to its low cost and abundant availability. However,there are many concerns around performance, health and environmental issues withsilica sand (as well as with zircon, olivine and chromite sands).Ceramic casting media is a manufactured product with properties that are proven ...

Successful Hybrid Slickwater Fracture Design Evolution - An East Texas Cotton Valley Taylor Case His

As the development of tight/unconventional and partially depleted gas reservoirs has increased, so has the demand for more innovative hydraulic fracture designs. Operators are increasingly placing proppant with slickwater, linear gel or hybrid fracture designs.

Effect of Incomplete Fracture Fill Up at the Wellbore on Productivity Ratio (SPE 4677)

Mobil demonstrated the use of “controlled screen out” designs in 1973. These screenouts were intentionally caused by lowering the injection rates and simultaneously increasing the proppant concentration to insure a fully packed fracture near wellbore.

The Application of Massive Hydraulic Fracturing to the Tight Muddy "J" Formation, Wattenberg Field, Colorado

In the very low perm Wattenberg Field (0.05 to 0.005 md), massive treatments exceeding 1 million pounds of sand were attempted. "Proppant pillars" were attempted, with slugs of sand laden stages followed by equal sized clean fluid stages.

Mini Massive Frac - A Stimulation Technique for Low Porosity, Low Permeability Zones (SPE 6627)

In the Ravencliff sandstone of West Virginia, a wells was frac'ed with up to 8 ppg sand, achieving three times the flowrate of typical offset wells with more modest stimulation treatments.

Practical Pressure Analysis in Evaluation of Proppant Selection for Selection for the Low-Permeability, Highly Geopressured Reservoirs of the McAllen Ranch (Vicksburg) Field (SPE 7925)

In recent years, the state-of-the-art concerning massive hydraulic fracturing has progressed substantially in low permeability, highly geopressured reservoirs typical of many deep wells in South Texas.

A Case History of Massive Hydraulic Refracturing in the Tight Muddy 'J' Formation (SPE 7936)

Initial fracs with 150,000 lbs sand provided low initial rates and rapid decline. On new wells, production increased with treatments as large as 1.25 million lbs. Refracs of wells in the better part of the field were found to payout in as little as 4 months with a gas price of $1.37/mcf.

Interpretation of Buildup Data Obtained From MHF Wells In Northern Germany (Paper 11605)

Apparent fracture conductivities measured in Germany were 80% lower than the reference values due to non-Darcy flow. Apparent fracture lengths were approximately 50% of the designed length. Production forecasts which ignore non-Darcy effects will be unrealistically optimistic.

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