horizontal wells Articles

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Fill removal from horizontal wellbore using foam in different coiled tubing/annulus diameter ratios

by Inderscience Publishers  (Feb. 18, 2015)

Coiled tubing is extensively used in oil industry to clean the wellbore to increase the productivity of oil/gas well by removing the fill/sand downhole. Well cleanup operation for low bottomhole pressure is problematic and common cleanout fluids are not effective as a circulation fluid due to severe pressure losses and low suspension capability. ...

Development and application of type curves for pressure transient analysis of horizontal wells in shale gas reservoirs

by Inderscience Publishers  (Sep. 19, 2014)

Even though significant progresses have been made in the past few years, there appears to be a lack of information regarding the characterisation of shale gas formations. A major purpose of this study is to demonstrate impacts of horizontal well geometries and gas flow parameters as well as shale gas reservoir system on horizontal well production ...

About Machine and Blade of CNC Horizontal Hard Turning Machine

by Shenyang Hermos CNC Machine Tool Co.,Ltd.  (Oct. 8, 2014)

As the biggest cnc lathe hard turning manufacturer,we have the most advanced technology, the most professional technical team.So we bileve we will sport the mosr professional and the best Services. 1. Machine Stiffness determines the cnc hard turning lathes machine precision. Manufacture of machine tools for nearly 15 to 20 years, almost ...

Introducing Riverside`s newest horizontal waste baler - the HZ50T

by Riverside Waste Machinery  (Oct. 7, 2014)

As interest in Riverside Waste Machinery's newest waste baler heats up, managing director Jonathan Oldfield tells us a little more about this latest addition to the fleet... Q: What is your product/technology? Riverside Waste Machinery’s RWM HZ 50T semi-automatic horizontal baler. Q: How does it work? When materials are fed into the ...

Effect of the number and length of zonal isolations on pressure behaviour of horizontal wells

by Inderscience Publishers  (Feb. 21, 2014)

Horizontal wells with multiple zonal isolations have become a common completion technique in the oil and gas industry. Sand problems, damaged zones, and water or gas coning are the main reasons for using isolators to sustain or improve oil and gas recovery. However, they have certain effects on pressure behaviour of horizontal wells. This paper ...

Gas injection to increase recovery from the Bakken formation

by Inderscience Publishers  (Feb. 18, 2015)

The Bakken formation, in the Williston Basin, has tremendous oil reserves estimated to be in the hundreds of billions of barrels. During the last decade, the Bakken has been rapidly developed with advances in horizontal drilling and improved multi–stage hydraulic fracturing. The primary recovery factor, however, has remained very low, around ...

Post-treatment of anaerobic effluent by ozone and ozone/UV of a kraft cellulose pulp mill

by IWA Publishing  (Feb. 26, 2015)

Pulp and paper mill effluents represent a challenge when treatment technologies are considered, not only to reduce organic matter, but also to reduce the toxicological effects. Although anaerobic treatment has shown promising results, as well as advantages when compared with an aerobic system, this process alone is not sufficient to reduce ...

Horizontal mixers for secondary combustibles case study

by AVA - Huep GmbH u. Co. KG  (Apr. 14, 2014)

The manufacture of secondary combustibles from household waste, industrial waste and special waste in accordance with statutory requirements is to be a huge challenge for system suppliers in the coming years. Currently, at times, extremely differing substances are treated in such a way that they can be loaded into conventional furnaces. The most ...

Computational fluid dynamics simulations of membrane filtration process adapted for water treatment of aerated sewage lagoons

by IWA Publishing  (Jan. 30, 2015)

The aim of this study is to apply the membrane bioreactor technology in an oxidation ditch in submerged conditions. This new wastewater filtration process will benefit rural areas (<5,000 population equivalent) subject to chronic water shortages by reusing this water for irrigation of green areas. For this purpose, the membranes developed ...

Treatment of municipal wastewater using horizontal flow constructed wetlands in Egypt

by IWA Publishing  (Jan. 16, 2014)

The aim of this study was to evaluate the performance of two pilot horizontal flow constructed wetlands (HFCWs) with and without vegetation. Three types of plants namely Canna, Phragmites australis and Cyprus papyrus were used. The surface area of each plant was 654 m2. The flow rate was 20 m3 d−1 and the organic ...

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