Evaluating the Effects of Muds on Wetlands from Horizontal Directional Drilling (HDD) within Natural Gas Transmission Line Rights-of-Way

2002 ◽  
pp. 599-607
Author(s):  
David Cameron ◽  
Carl Tammi ◽  
Emily Steel ◽  
Jon Schmidt ◽  
James Evans
Keyword(s):  
Natural Gas ◽  
Transmission Line ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
Natural Gas Transmission

Stress Analysis of a Gas Pipeline Installed Using HDD and Auger Bore Techniques

2008 ◽  
Author(s):  
Paul Cousens ◽  
Chas Jandu
Keyword(s):  
Natural Gas ◽  
Stress Analysis ◽  
Transmission Network ◽  
Storage Facility ◽  
Directional Drilling ◽  
Sources Of Information ◽  
Horizontal Directional Drilling ◽  
Design Code ◽  
Traffic Loading ◽  
Natural Gas Transmission

As part of an important project to reinforce the natural gas transmission network, a new pipeline has been constructed to transport natural gas from a major UK LNG storage facility into the national transmission system. The project involved the installation of several sections by trenchless methods, namely auger boring for a number of road crossings and significant lengths of horizontal directional drilling (HDD) beneath railroads, canals and marshland. The installation of pipelines using trenchless techniques such as HDD continues to increase in popularity. The various methods available offer advantages over traditional open cut techniques, in particular much reduced disruption during the construction of road and rail crossings. Furthermore, increased awareness and responsibility towards the environment leads us to seek installation methods that cause the least disruption at the surface and have the least impact to the environment. It was required to assess the proposed crossing designs against acceptable stress limits set out in company specifications and against the requirements of UK design code IGE/TD/1 Edition 4 [1], which requires that ‘additional loads’ such as soil loadings, thermal loads, settlement and traffic loading are accounted for within the stress calculations. However, it does not stipulate the sources of such equations and the pipeline engineer must rely on other methods and published sources of information. This paper presents the method used to analyse those sections of the new pipeline installed by auger boring and HDD focusing on the methods and formulae used to calculate the stresses in the pipeline from all loading sources.

Horizontal Directional Drilling Application in a Wide River Crossing in the Amazon Rain Forest

2014 ◽  
Author(s):  
Robson Santana Nóbrega Alves ◽  
Byron Gonçalves de Souza Filho
Keyword(s):  
Natural Gas ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
Gas Pipeline ◽  
Amazon Forest ◽  
Directional Drilling ◽  
Horizontal Directional Drilling ◽  
Existing Structures ◽  
Natural Gas Pipeline ◽  
Single Well

Horizontal Directional Drilling, as known as HDD, is a method of construction that requires few trenches or no continuous trenches, used for making crossings under rivers, roads and existing structures. In the oil and gas industry, it is most commonly used in offshore and onshore well drilling activities to better explore the reservoir from a single well. It is also very much used when laying pipelines, where no other feasible option is possible. This technology was widely applied in the Urucu-Manaus natural-gas pipeline construction by Petrobras, and Transpetro has been responsible for the operation and maintenance of this pipeline since November 2009, flowing Natural Gas from the heart of the Amazon forest mainly to the growing market of thermoelectric plants. Due to its extension in the forest, the crossing of numerous wide navigable rivers and other natural obstacles was unavoidable, and no other construction methods were more suitable than the HDD technology. This work shows the application of this method in the 1777m long crossing of the Solimões River during the construction of this 662km Natural Gas pipeline. It also shows the challenges faced due to the logistical adversities in the rainforest, as well as the operations by Transpetro.

scholarly journals The Potential Impact Radius of a Natural Gas Transmission Line and Real Estate Valuations: A Behavioral Analysis

10.28945/4514 ◽  
2020 ◽  
Vol 4 ◽  
pp. 087-089
Author(s):  
Charles M Hilterbrand
Keyword(s):  
Natural Gas ◽  
Transmission Line ◽  
Perceived Risk ◽  
Statistical Significance ◽  
Residential Property ◽  
Control Group ◽  
Significant Difference ◽  
Natural Gas Transmission ◽  
Potential Impact ◽  
Fair Market Value

This study intended to address the question, “How would a purchase price be impacted if a seller provided buyers a notice that the residential property that has been listed for sale is located within a Potential Impact Radius (PIR) of a natural gas transmission line?” Does the notice of the location affect the purchase value a buyer is willing to offer for a residential property? Does the perceived risk associated with PIR affect the amount a potential buyer would offer? To address these questions, a Qualtrics survey that included three video tour treatments of a residential property was sent to three groups. A control group was presented a video tour without any residential disclosure notice. A second group was presented a video tour with an audible notice that the residence is located within 500 feet of a natural gas transmission line. A third group was presented a video tour with an audible notice that the residence is located within the potential impact radius (PIR) of a natural gas transmission line. Each respondent was asked to state a fair offer value for the residential property shown in their respective video. No statistically significant difference was found in the fair offer value mean between the control group and the group with notice the residence is located within 500 feet of a natural gas transmission line was found. No statistically significant difference was found in the fair market value between the group with notice the residence is located within 500 feet of a natural gas transmission line and the group with notice the residence is located within the potential impact radius (PIR) of a natural gas transmission line was found. A statistical significance was found where the control group was compared to the group with notice the residence is located within the potential impact radius (PIR).

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