Evaluating the impact of gas extraction infrastructure on the occupancy of sagebrush-obligate songbirds

2015 ◽  
Vol 25 (5) ◽  
pp. 1175-1186 ◽  
Author(s):  
Max Mutter ◽  
David C. Pavlacky ◽  
Nicholas J. Van Lanen ◽  
Richard Grenyer
Keyword(s):  
Gas Extraction ◽  
Sagebrush Obligate ◽  
The Impact

scholarly journals Assessment of TPHs and PAHs in the Marine Sediment Relating to Oil and Gas Extraction activity on the western coastline of Qatar

2020 ◽  
Author(s):  
Maryam Abdulali Abdulla
Keyword(s):  
Marine Sediment ◽  
Oil And Gas ◽  
Sediment Quality ◽  
Arabian Gulf ◽  
Dry Weight ◽  
Petroleum Products ◽  
Total Petroleum Hydrocarbons ◽  
Gas Extraction ◽  
Quality Guidelines ◽  
The Impact

Total petroleum hydrocarbons (TPHs) and Polycyclic aromatic hydrocarbons (PAHs) are priority pollutants which are known to be associated with petroleum products. They are released into the marine environment via accidental spillage, exploration and transportation. The present study aims to assess the impact of petroleum and gas extraction activities on the pollution of coastal marine sediment of the western coastline of Qatar. Sixty-six surface sediment samples were collected along the western coastal area. The concentration of organic hydrocarbons (TPHs and PAHs) were determined using GC-FID and GC-MS, respectively. Sediment characteristics including pH, temperature, TOC and particle size were also measured. The results indicated low concentrations of TPH (<0.001-0.246 μg/g dry weight sediment) and PAHs (<0.001-0.044 μg/g dry weight sediment). The concentrations for both organic pollutants were lower compared to the previous studies done within Qatar and in the Arabian Gulf and also indicated below the available permissible limit set by the Ministry of Municipality and Environment of Qatar and other sediment quality guidelines (SQGs) used worldwide (NOAA).

Global Oil Spills and Oiled Wildlife Response Effort: Implications for Oil Spill Contingency Planning

2014 ◽  
Vol 2014 (1) ◽  
pp. 1524-1544 ◽  
Author(s):  
Andrew David Morgan ◽  
Katherine Shaw-Brown ◽  
Ian Bellingham ◽  
Anna Lewis ◽  
Mitch Pearce ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Oil Spills ◽  
Transport Infrastructure ◽  
Regulatory Agencies ◽  
Contingency Planning ◽  
Gas Extraction ◽  
Maritime Transport ◽  
Response Effort ◽  
Maritime Operations ◽  
The Impact

ABSTRACT Over the last century there has been a significant increase in the number and size of oil spills to the marine environment due to the global proliferation of oil and gas extraction as well as the number of tankers and other maritime transport infrastructure associated with increased production. Efforts have traditionally been focussed on containment and deflection of oil rather than responding to wildlife. The present study examines total oiled wildlife effort in response to maritime spills for 286 recorded globally. Between 1910 and 1961 there was an average of 1.23 ± 0.43 incidents per year, spilling an average of 114,062 ± 352,512 tonnes of oil per year. These averages increased to 3.83 ± 2.65 events with 123,277 ± 166,735 tonnes of oil spilt per year from 1962 to 1990, and again, from 1991 to 2012 to 6.50 ± 5.17 events with 164,299 ± 290,655 tonnes of oil spilt per year. Offshore platform and tanker spills have accounted for 37% and 27% of this total, respectively. Of the 104 recorded instances where wildlife interactions occurred (40%), spill volume was not related to the total number of animals caught, oiled or pre-emptively; however, it was related to the number of carcasses collected. A lack of planning for Oiled Wildlife Response (OWR) was identified as a contributing factor exacerbating the impact of a spill on wildlife and for resourcing a response. Inadequacies within operator and government contingency planning, to prepare for and sustain a wildlife response for extended periods, can be overcome by using a mobilisation model that integrates wildlife carer networks, government regulatory agencies and operator resourcing via an independent coordinating organisation consisting of a small group of personnel highly experienced and trained in maritime operations and marine science with access to a network of persons with experience in responding to wildlife and their handling, treatment and rehabilitation.

Nonlinear Dynamics Research between Drill Pipe and Coal Hole Wall during Gas Extraction Drilling

2016 ◽  
Vol 2 (1) ◽  
pp. 215
Author(s):  
Xiaoming Han ◽  
Chenxu Luo ◽  
Qiangqiang Zhang
Keyword(s):  
Simulation Analysis ◽  
Drill Pipe ◽  
Hole Diameter ◽  
Gas Extraction ◽  
Gas Drainage ◽  
Underground Coal Mine ◽  
Hole Wall ◽  
Coal Wall ◽  
The Impact ◽  
Drainage Borehole

This paper analyzes the impact of gas drainage borehole drilling rod vibration phenomena stability.Taking 100m hole depth in underground coal mine as an example, the dynamic simulation analysis of the underground gas drainage drilling rod was carried out by using the ANSYS finite element dynamic analysis module LS-DYNA method.According to the collision course between the drill pipe and the coal hole wall, the Lagrange algorithm is introduced to analyze the stress change of drill pipe in the collision course of 98mm, 108mm, 118mm and 128mm. The failure mechanism of drill pipe fatigue fracture and hole wall instability caused by the collision between drill pipe and coal hole is analyzed. The results show that the stress caused by the impact of drilling speed, drilling pressure and coal hole diameter is larger than that caused by the collision between drill pipe and coal wall.

scholarly journals Long-Term and Short-Term Export Contracts for Natural Gas Supply

2020 ◽  
Vol 3 ◽  
pp. 103-107
Author(s):  
Sergey S. Koshman ◽  
Keyword(s):  
Natural Gas ◽  
Foreign Trade ◽  
Gas Extraction ◽  
Electronic Trading ◽  
Short Term ◽  
Advantages And Disadvantages ◽  
The Impact ◽  
Gas Supply ◽  
Storage Processes

Natural gas is exported in accordance with the terms and conditions of foreign trade contracts between the seller and the buyer. Research into the execution procedure, terms and conditions of such contracts has both theoretical and practical value. The importance of a foreign trade contract for relations between the parties cannot be overemphasized as its scope determines and legally binds the parties for the achievement of their respective goals. When entering into foreign trade contracts, the parties should consider the impact of natural gas extraction, processing, transportation, storage processes on terms of foreign trade transactions with natural gas. These terms are especially important for long-term natural gas export contracts which are considered to be the traditional form of natural gas trading. However, more recently, forms of foreign trade contracts for natural gas export used to interact with foreign buyers have become more diversified. Natural gas trading under short-term contracts using electronic trading platforms is becoming increasingly important. In this article, the author examines the key peculiarities of such contracts, defines basic advantages and disadvantages of using various contract forms for natural gas export.

Changes in institutional design and extraction path

2018 ◽  
Vol 23 (4) ◽  
pp. 478-494
Author(s):  
Mohammad Kemal ◽  
Ian Lange
Keyword(s):  
Renewable Resources ◽  
Oil And Gas ◽  
Institutional Design ◽  
Gas Extraction ◽  
South East Asia ◽  
Level Data ◽  
Ownership Rights ◽  
East Asia Region ◽  
The Impact ◽  
Oil Company

AbstractThe impact of oil governance on the extraction path of non-renewable resources is theoretically ambiguous. By employing field-level data in the South East Asia region, we utilize a change in the institutional design of oil governance in Indonesia to determine its impact on oil and gas extraction paths. From the empirical results, we infer that the move to create a separate regulatory agency and make the national oil company a purely business entity led to a reduction in the extraction path of oil, the size of which varies for different sizes of resource stock. This finding reiterates the importance of strengthening ownership rights for non-renewable resources to avoid over-extraction and facilitate more sustainable economic outcomes.

scholarly journals LONG-TERM AND SHORT-TERM EXPORT CONTRACTS FOR NATURAL GAS SUPPLY

2020 ◽  
Vol 3 ◽  
pp. 51-56
Author(s):  
Sergey S. Koshman ◽  
Keyword(s):  
Natural Gas ◽  
Foreign Trade ◽  
Gas Extraction ◽  
Electronic Trading ◽  
Short Term ◽  
Advantages And Disadvantages ◽  
The Impact ◽  
Gas Supply ◽  
Storage Processes

Natural gas is exported in accordance with the terms and conditions of foreign trade contracts between the seller and the buyer. Research into the execution procedure, terms and conditions of such contracts has both theoretical and practical value. The importance of a foreign trade contract for relations between the parties cannot be overemphasized as its scope determines and legally binds the parties for the achievement of their respective goals. When entering into foreign trade contracts, the parties should consider the impact of natural gas extraction, processing, transportation, storage processes on terms of foreign trade transactions with natural gas. These terms are especially important for long-term natural gas export contracts which are considered to be the traditional form of natural gas trading. However, more recently, forms of foreign trade contracts for natural gas export used to interact with foreign buyers have become more diversified. Natural gas trading under short-term contracts using electronic trading platforms is becoming increasingly important. In this article, the author examines the key peculiarities of such contracts, defines basic advantages and disadvantages of using various contract forms for natural gas export.

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