horizontal well Articles

345 Results found

Current filtering criteria

You can remove a filter by clicking on the x
  • Keyword: horizontal well ×

Horizontal Wells - Technology Overview

by Groundwater Remediation Technologies Analysis Center  (Jan. 1, 1996)

Horizontal well technology has been incorporated into many current environmental remediation applications (and associated contaminants), such as in situ bioremediation, air sparging, vacuum extraction, soil flushing, free product recovery, etc. Ac cording to information reviewed, this technology is most applicable to sites with relatively shallow ...

Evaluation of a Horizontal Well

by Directed Technologies Drilling Incorporated (DTD)  (Oct. 5, 2010)

Background: Air Sparging Air sparging is an in-situ remediation technology where air is injected into the saturated zone of an aquifer. It is an alternative to conventional ex-situ pump and treat systems for remediation of contaminated ground water. It is necessary to understand the pattern of air flow that will occur in the subsurface in order ...

Time-Tested Advantages of Horizontal Wells

by Directional Technologies, Inc.  (Oct. 22, 2010)

Wells are wells are wells, right? Both conventional vertical wells and directionally drilled horizontal wells have a screened casing that is connected to solid riser casing which leads to the ground surface. Groundwater or soil vapor is drawn through a well screen to remove contaminants. Remediation agents such as air, bioamendmnents or potassium ...

Horizontal Soil Vapor Extraction and Horizontal Air Sparge Wells Case Study-

by Directional Technologies, Inc.  (Jul. 6, 2011)

Directional Technologies Is The Expert At Horizontal Soil Vapor Extraction   A horizontal soil vapor extraction well and two horizontal air sparge wells rapidly remediate contamination in situ under a research and development facility. These horizontal wells were installed by environmental directional driller Directional ...

How much does a Horizontal Remediation Well cost?

by Directional Technologies, Inc.  (Oct. 22, 2010)

In the early days of horizontal remediation wells, the estimated costs made many projects completely unfeasible. However, with the advance of technology in directional drilling and innovative solutions within the environmental industry, this technology is becoming affordable and practical. Like most environmental projects, the cost of a Horizontal ...

Electrical heating with horizontal wells, the heat transfer problem

by McMillan-McGee Corp.  (May 13, 2011)

Outline Present our mathematical solution of the axial heat transfer problem for electrical heating of a horizontal well. Present some results. Calculation Procedure Derive the Heat Transfer PDE for each region. Obtain the Laplace Transforms of these equations. Solve the above equations. ...

Environmental impacts of ocean-energy systems: a life-cycle assessment

by European Commission, Environment DG  (Sep. 23, 2016)

Ocean-energy technologies — which harvest renewable energy from the sea — will have a significant role to play in a future low-carbon society. A recent life-cycle analysis of different ocean-energy devices has found that life-cycle environmental impacts are caused mainly by the materials used in the mooring, foundations and structures. ...

Optical encoders and LiDAR scanning

by Renishaw plc  (Sep. 14, 2016)

Overview Modern technology is taken for granted; a driver only needs to type a destination into a SATNAV system and step-by-step instructions, journey distance and duration, driving conditions and hazards, as well as alternative routes, instantly appear. In order to work, highly accurate and up-to-date maps are required of an entire ...

Horizontal Remediation Wells - Don`t Disrupt your Client`s Business

by Directional Technologies, Inc.  (Oct. 31, 2015)

The use of Horizontal Remediation Wells for environmental cleanup is a proven solution for project managers with many benefits including the benefit of the continuation of business activities during mitigation or remediation activities.   Since 1993, Directional Technologies, Inc. has installed thousands of Horizontal Remediation Well ...

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 ...

Air and Ozone Sparging of TCE Using a Directionally Drilled Horizontal Well

by CH2M Hill Companies, Ltd.  (Jan. 1, 2004)

A one year pilot test was performed at Marine Corps Base, Camp Lejeune to evaluate the performance of air and ozone-enhanced air sparging via a horizontal well. The primary contaminant at the site is trichloroethylene (TCE), with concentrations ranging from 200 to 800 μg/L at a primary target depth of 40 to 45 feet below ground surface (bgs). ...

DTI installs 3 blind horizontal remediation wells in cobble

by Directional Technologies, Inc.  (Oct. 22, 2010)

The Issue An active retail gas station next to a wetland area has benzene and trimethylbenzene plumes in a water table aquifer containing sand, gravel and cobbles. Rock fragments and boulders several feet in diameter lie in the vadose zone, between the ground surface and the water table. Business at the gas station would slow down or stop for an ...

DTI installs horizontal remediation wells under busy intersection

by Directional Technologies, Inc.  (Oct. 22, 2010)

The Issue A retail gasoline station in Tallahassee Florida with leaking underground storage tanks sits atop a local groundwater divide, causing petroleum hydrocarbon plumes to migrate in opposite directions from the site. In one direction, the plume has migrated under a residential neighborhood on downward sloping terrain, and in the opposite ...

Enhanced Vapor Intrusion Mitigation via Horizontal Remediation Wells

by Directional Technologies, Inc.  (Aug. 16, 2016)

Vapor Intrusion (VI) is a potential concern at any building - existing or planned, located near soil or groundwater contaminated with volatile organic compounds (VOCs). Conventional installation technologies (vertical wells) can fall short, especially when large structures such as factories, hangars, and offices buildings are involved because ...

Pressure behaviours and flow regimes of a horizontal well with multiple inclined hydraulic fractures

by Inderscience Publishers  (Dec. 4, 2012)

Hydraulic fractures have become a common stimulation application in the oil and gas industry, especially in tight formations. Published models assume the hydraulic fractures are vertical and symmetric. However, recent studies have shown that fractures are asymmetric and inclined with respect to the vertical direction and the axis of the wellbore. ...

Horizontal Remediation Wells used in order to preserve military security

by Directional Technologies, Inc.  (Nov. 11, 2010)

Project Description: Remediate a plume of trichloroethylene (TCE) under multiple military buildings by air sparging (AS) and soil vapor extraction (SVE). There are two target zones: the shallow zone is approximately 70' below grounds surface (bgs) and 20' below this is the deep zone. The plume was located under multiple buildings comprising an ...

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 ...

Horizontal Air Sparge Wells Solve Access Limitations beneath Air Field Tarmac

by Directional Technologies, Inc.  (Oct. 22, 2010)

Air Force Base tarmac is a double-edged sword with respect to environmental remediation. Concrete thicker than at commercial airports virtually eliminates infiltration and limits migration of jet fuel constituents in groundwater, but source material in the vadose zone remains indefinitely, extending the life of the groundwater plume. Horizontal ...

Directional Technologies, Inc. conducts unique horizontal remediation well installation in Railroad Yard

by Directional Technologies, Inc.  (Oct. 22, 2010)

The Issue The Long Island Rail Road (LIRR) Morris Park Yard, located at the Intersection of Atlantic Avenue and 121st Street in Queens, New York, is a historic rail yard with one of the only operating turntables in the USA. The Morris Park Yard has been used to repair and refuel engines for over 100 years. Today, it continues to serve one of the ...

The “Straight Skinny” on bentonite-based drilling muds & their standard practice use in the horizontal remediation well industry

by Directional Technologies, Inc.  (Jan. 25, 2011)

Let’s make our point up front: 1) bentonite-based drilling fluid is NOT bad for horizontal remediation well (HRW) projects; 2) it does not damage the formation; 3) it is a naturally occurring clay material that is mined; and 4) it does flush easily/adequately during well development. Most remediation professionals have designed and/or ...

Need help finding the right suppliers?

Let the XPRTs do the work for you