Subsoil TPH contamination in two oil pipeline pumping stations and one pipeline right-of-way in north Mexico

2010 ◽  
Vol 91 (11) ◽  
pp. 2396-2402 ◽  
Author(s):  
R. Iturbe ◽  
R.M. Flores-Serrano ◽  
A. Castro ◽  
C. Flores ◽  
L.G. Torres
Keyword(s):  
Oil Pipeline ◽  
Right Of Way ◽  
Pumping Stations

TPH and PAH concentrations in the subsoil of polyduct segments, oil pipeline pumping stations, and right-of-way pipelines from Central Mexico

2007 ◽  
Vol 55 (8) ◽  
pp. 1785-1795 ◽  
Author(s):  
Rosario Iturbe ◽  
Alejandrina Castro ◽  
Guillermina Perez ◽  
Carlos Flores ◽  
Luis G. Torres
Keyword(s):  
Central Mexico ◽  
Oil Pipeline ◽  
Right Of Way ◽  
Pumping Stations

Field Observations of Cyclical Pipe-Soil Interactions in Permafrost Terrain, KP 5, Norman Wells Pipeline, Canada

2000 ◽  
Author(s):  
Margo M. Burgess ◽  
Scott Wilkie ◽  
Rick Doblanko ◽  
Ibrahim Konuk
Keyword(s):  
Small Diameter ◽  
Ground Surface ◽  
Thermal Conditions ◽  
Field Work ◽  
Low Density ◽  
Freezing And Thawing ◽  
Near Surface ◽  
Oil Pipeline ◽  
Right Of Way ◽  
Discontinuous Permafrost

The Norman Wells pipeline is an 869 km long, small diameter, buried, ambient temperature, oil pipeline operated by Enbridge Pipeline (NW) Inc. in the discontinuous permafrost zone of northwestern Canada. Since operation began in 1985, average oil temperatures entering the line have been maintained slightly below 0°C, initially through constant chilling year round and since 1993 through a seasonal cycling of temperatures through a range from −4 to +9°C. At one location, 5 km from the inlet at Norman Wells, on level terrain in an area of widespread permafrost, uplift of a 20 m segment of line was observed in the early 1990s. The uplift gradually increased and by 1997 the pipe was exposed 0.5 m above the ground surface. Detailed studies at the site have included field investigations of terrain and thermal conditions, repeated pipe and ground surface elevation surveys, and annual Geopig surveys. The field work has revealed that the section of line was buried in low density soils, thawed to depths of 4 m on-right-of-way, and not subjected to complete refreezing in winter. The thaw depths are related to surface or near-surface flows from a nearby natural spring, as well as to the development of a thaw bulb around the pipe in the cleared right-of-way. Icings indicative of perennial water flow occur commonly at this location in the winter. The pipe experienced annual cycles of heave and settlement (on the order of 0.5 m) due to seasonal freezing and thawing within the surrounding low density soils. The pipe reached its highest elevation at the end of each winter freezing season, and its lowest elevation at the end of the summer thaw period. Superimposed on this heave/settlement cycle was an additional step-like cycle of increasing pipe strain related to thermal expansion and contraction of the pipe. A remedial program was initiated in the winter of 1997–98 in order to curtail the cumulative uplift of the pipe, reduce the increasing maximum annual pipe strain and ensure pipe safety. A 0.5 m cover of sandbags and coarse rock was placed over the exposed pipe segment. Continued pipe elevation monitoring and annual Geopig surveys have indicated that both seasonal heave/settlement and strains have been reduced subsequent to the remedial loading. Introduction of a gravel berm has also altered both the surrounding hydrologic and ground thermal regimes.

Sub-soil contamination due to oil spills in six oil-pipeline pumping stations in northern Mexico

Chemosphere ◽  
2007 ◽  
Vol 68 (5) ◽  
pp. 893-906 ◽  
Author(s):  
Rosario Iturbe ◽  
Carlos Flores ◽  
Alejandrina Castro ◽  
Luis G. Torres
Keyword(s):  
Soil Contamination ◽  
Oil Spills ◽  
Oil Pipeline ◽  
Northern Mexico ◽  
Pumping Stations

Right-of-Way and Pipeline Monitoring in Permafrost: The Norman Wells Pipeline Experience

2002 ◽  
Author(s):  
Rick M. Doblanko ◽  
James M. Oswell ◽  
Alan J. Hanna
Keyword(s):  
Northwest Territories ◽  
Monitoring Program ◽  
Surveillance Program ◽  
Joint Research ◽  
Ambient Temperatures ◽  
Oil Pipeline ◽  
Right Of Way ◽  
Discontinuous Permafrost ◽  
The Government ◽  
Government Of Canada

Enbridge Pipelines (NW) Inc. (Enbridge) owns and operates a 323.9 mm outside diameter crude oil pipeline from Norman Wells, Northwest Territories, Canada to Zama, Alberta, Canada (Norman Wells Pipeline). The first of its kind in North America, this pipeline, completely buried in discontinuous permafrost, is approximately 869 kilometres in length. The pipeline, designed to operate at ambient temperatures, was constructed during the winter seasons of 1983–1984 and 1984–1985 and began operations in April 1985. Enbridge (formerly Interprovincial Pipe Line (NW) Ltd.), under various regulatory terms and conditions, is required to monitor and report the effects of pipeline construction and operations associated with the environment and right-of-way. The company has been an active participant in joint research and monitoring working groups consisting of various departments of the Government of Canada, Government of Northwest Territories, and other agencies. Over the past seventeen years, Enbridge has developed a monitoring and surveillance program that ensures the safe operation of the pipeline and protection of the environment. Any significant issues arising from the monitoring program result in mitigative actions based on engineering assessments. Furthermore, Enbridge is mandated to inform the appropriate agencies of issues resulting from the monitoring program. This paper will focus on the terrain and geotechnical monitoring programs initiated by Enbridge over its years of operation of this pipeline and will discuss topics including operations and maintenance activities key to pipelines installed in discontinuous permafrost, condition of the pipeline, and the on-going terrain and slope monitoring program.

Peculiarities of the operation of the oil pipeline in the process of its cleaning from paraffin deposition

2021 ◽  
Vol 2 (106) ◽  
pp. 77-85
Author(s):  
M.D. Serediuk
Keyword(s):  
Specific Energy Consumption ◽  
Viscoplastic Fluid ◽  
Hydrodynamic Process ◽  
Oil Pipeline ◽  
Available Energy ◽  
Oil Transportation ◽  
Pumping Stations ◽  
Oil Pipelines ◽  
Cleaning Device ◽  
Additional Resistance

Purpose: Improving the technology of cleaning the inner surface of the main oil pipelines from paraffin deposition by specifying the hydrodynamic parameters of the movement of the cleaning device in the cavity of the pipeline, by more accurate prediction of the time of its approach to the final point of purification. Design/methodology/approach: Performing theoretical researches and application of mathematical modelling methods in order to establish the regularities of the cleaning device movement in the oil pipeline. Findings: Regularities of changes in the capacity of the pipeline, the speed of the cleaning process, the specific energy consumption for oil transportation as a function of the linear coordinates of the place and time of the cleaning device movement in the pipeline were established. Research limitations/implications: The next stage of research is to establish the influence of the characteristics of the viscoplastic fluid of the paraffin plug on the additional resistance and the mode of the cleaning device movement in the pipeline. Practical implications: It was developed the method that allows predicting the capacity and energy efficiency of the pipeline operation for each point in time of the process of cleaning from paraffin deposition. Originality/value: The originality of the method is the taking into account the additional hydraulic resistance of the paraffin plug and the available energy resources of oil pumping stations on the hydrodynamic process of moving the cleaning device in the oil pipeline.

RECOVERY OF PRODUCTIVITY OF ONTARIO SOILS DISTURBED BY AN OIL PIPELINE INSTALLATION

1982 ◽  
Vol 62 (2) ◽  
pp. 267-279 ◽  
Author(s):  
J. L. B. CULLEY ◽  
B. K. DOW ◽  
E. W. PRESANT ◽  
A. J. MacLEAN
Keyword(s):  
Organic Matter ◽  
Crop Yields ◽  
Chemical Properties ◽  
First Year ◽  
Field Crop ◽  
Oil Pipeline ◽  
Soil Mixing ◽  
Right Of Way ◽  
Physical Chemical ◽  
The Right

Measurement of soil properties and field-crop yields on cropland traversed by the Sarnia-Montreal oil pipeline indicated that pipeline isntallation detrimentally affected both crop yields and soil physical-chemical properties in the first year after construction. After 5 yr, relative yields improved although reductions still persisted at most row-cropped sites. However, alfalfa yields at two sites appeared to be unaffected by pipeline construction. Soil mixing and compaction on the right-of-way were most prevalent on medium- to fine-textured soils. Compaction did not appear to be a problem at a coarse-textured site. Soil chemical data indicated that spoil (subsoil) materials from the trench were spread across the right-of-way at most sites. Diluted soil organic matter levels in the right-of-way adversely affected nitrogen status. Medium- to fine-textured right-of-way soils had reduced porosities and hydraulic conductivities, but increased strengths compared with undisturbed adjacent soils.

Managing of a Strategic Crude Oil Pipeline for Maximum Transportation Capacity

2013 ◽  
Author(s):  
Hesham A. M. Abdou
Keyword(s):  
Mathematical Models ◽  
Crude Oil ◽  
Flow Rate ◽  
Dynamic Pressure ◽  
Western Desert ◽  
Working Pressure ◽  
Pressure Losses ◽  
Oil Pipeline ◽  
Pumping Stations ◽  
Transportation Capacity

The aged crude oil pipeline; 16″ × 166 km since November 1984, extends from Meleiha field at western desert to El-Hamra terminal at coast of the Mediterranean sea. Its original capacity was 100,000 BOPD using two pumping stations; one at Meleiha and the other is a boosting station, 83 km far from Meleiha. Planned pumped flow rate increased to 177,000 BOPD at the time that Maximum Allowable Working Pressure (MAWP) reduced from 1440 psi to 950 psi. This paper shows managing procedures led to pumping higher flow rate without exceeding MAWP, where two solutions to accommodate such increase in production were applied; firstly by looping the existing pipeline with a (16″ × 56 km), secondly by using a Drag Reducing Agent (DRA), so that could reduce hydraulic friction losses and Total Dynamic Pressure (TDP) in the system and could pumped more with reduced initial pumping pressure at Meleiha. So, the intermediate station was temporarily abandoned. Mathematical models are designed to simulate pumping operation through the whole system, where TDP is predicted for the three pipeline cases: 1- normal case without both looping & DRA. 2- case without DRA & with looping. 3- case with both looping & DRA. Laws of hydraulics are applied with the deduced formula represents performance of DRA in which percentage of drop in pressure losses is modeled as a function of DRA dose in ppm. Close agreement is remarked between values of the deduced theoretical values and actual values obtained for TDP, confirming validity of such mathematical models.

Emergency due to Rain Event on OSPAR Pipeline Right-of-Way: Lessons Learnt From the Rapid Approach in March, 2011

2013 ◽  
Author(s):  
Hudson Régis Oliveira ◽  
Henrique Xavier de Paula
Keyword(s):  
Social Economic ◽  
Gas Pipeline ◽  
Rain Event ◽  
Southern Brazil ◽  
Serra Do Mar ◽  
Oil Pipeline ◽  
Right Of Way ◽  
Oil Pipelines ◽  
Getulio Vargas ◽  
Damages And Losses

Nowadays, natural disasters have become much frequently in Brazil, having as result serious consequences such as social, economic and environmental damages and losses. The aim of this paper is evaluate the actions provided by TRANSPETRO in emergency span occurred in OSPAR right-of-way due to intense and heavy rains that occurred in March 2011 in the Serra do Mar Hills, in Parana State, southern Brazil. The geotechnical phenomenon affected three pipelines: • OSPAR Oil Pipeline, which is responsible for supplying the Presidente Getulio Vargas Refinery - REPAR with crude oil; • OPASC Oil Pipeline: used for distribute derivatives from REPAR to Santa Catarina State; • GASBOL Gas Pipeline: supplies Southern Brazil with natural gas from Bolivia. After several days of heavy and steady rain, on 11th March 2011 the rainfall reached the peak of 180mm in 24 hours what generated more than 50 geotechnical and hydrotechnical occurrences in OSPAR stream at Serra do Mar crossing,. The actions, necessary to reducing the hazard, required stopping of oil pipelines, decrease of internal pressure in the gas pipeline, rearrangement of internal staff and machinary structure, and support of external companies structure, such as partnerships companies and new emergency contracts including heavily aircraft support, staffs and machines. The emergency works, carried out in the occasion, leaded to the return of pipeline operations in less than five days. The total pipeline security was established with the stabilization of more than 50 geotechnical and hydrotechnical occurrences.

LONG-TERM EFFECTS OF AN OIL PIPELINE INSTALLATION ON SOIL PRODUCTIVITY

1988 ◽  
Vol 68 (1) ◽  
pp. 177-181 ◽  
Author(s):  
J. L. B. CULLEY ◽  
B. K. DOW
Keyword(s):  
Crop Yields ◽  
Chemical Properties ◽  
Soil Productivity ◽  
Long Term Effects ◽  
Oil Pipeline ◽  
Soil Mixing ◽  
Right Of Way ◽  
Period Effects ◽  
Alfalfa Field

Crop yields and heights and soil chemical properties on and immediately adjacent to an oil pipeline right-of-way (ROW) were monitored over a 10-yr period. Effects of soil mixing on chemical properties were still apparent despite good crop management. With the exception of alfalfa, field crop yields on the ROW were reduced by an average of 28% 10 yr after installation. Key words: Soil mixing, degradation, crop heights

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