Facts relating to the production and substitution of manufactured gas for natural gas /

Includes bibliographical references and index.

Amendments to the Natural Gas Act (exemption of producers) Report on S. 1853, to amend the Natural Gas Act, as amended, together with the minority views of Mr. Magnuson, Mr. Pastore, Mr. Potter, and Mr. Purtell, and the individual views of Mr. Duff and Mr. Payne.

Mode of access: Internet.

Proved discoveries and productive capacity of crude oil, natural gas, and natural gas liquids in the United States; a report.

Mode of access: Internet.

Occupational employment statistics booklet of definitions : pipelines, except natural gas.

Mode of access: Internet.

The natural gas option--new resources and new technologies [microform] : hearing before the Subcommittee on Energy Development and Applications of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, first session, July 22, 1981.

"No. 28."

The natural gas option--new resources and new technologies [microform] : hearing before the Subcommittee on Energy Development and Applications of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, second session, July 30, 1982.

CIS Microfiche Accession Numbers: CIS 83 H701-10

Manual for back pressure test for natural gas wells, State of New Mexico,

Mode of access: Internet.

Estimate of the natural gas reserves of the state of California as of January 1, 1942. Case no. 4591, Special study no. S-334.

At head of title: Railroad Commission of the State of California and Dept. of Natural Resources, Division of Oil and Gas.

Analyses and projections of the historic patterns of U.S. domestic supply of crude oil, natural gas, and natural gas liquids; a study

Cover title.

The future supply of oil and gas; a study of the availability of crude oil, natural gas, and natural gas liquids in the United States in the period through 1975.

Includes bibliographies.

The appropriate use of climatic information in Illinois natural-gas utility weather-normalization techniques /

"ISWS/RI-112/90"--Cover.

Natural gas price decontrol : a comparison of two bills.

1005-C.

Provisional rules of practice and regulations under the Natural gas act : with approved forms and amending orders.

Mode of access: Internet.

Analysis of service stress corrosion cracking in a natural gas transmission pipeline, active or dormant?

Stress corrosion cracks (SCC) had been found in a natural gas transmission pipeline during a dig-up and inspection program. The question was raised as to whether the SCC was active or dormant. This paper describes the resultant investigation to determine if a particular service crack was actively growing. The strategy adopted was to assess the appearance of the fracture surface of the service crack and to compare with expectations from laboratory specimens with active SCC. The conclusions from this study are as follows. To judge whether a crack in the service pipe is active or dormant, it is reasonable to compare the very crack tip of the service crack and a fresh crack in a laboratory sample. If the crack tip of the active laboratory sample is similar to that of the service pipe, it means the crack in the service pipe is likely to be active. From the comparison of the crack tip between the service pipe and the laboratory samples, it appears likely that the cracks in the samples extracted from service were most likely to have been active intergranular stress corrosion cracks. (C) 2003 Elsevier Ltd. All rights reserved.

An assessment of the performance of high density polyethylene copolymers for natural gas distribution pipes

The total thermoplastics pipe market in west Europe is estimated at 900,000 metric tonnes for 1977 and is projected to grow to some 1.3 million tonnes of predominantly PVC and polyolefins pipe by 1985. By that time, polyethylene for gas distribution pipe and fittings will represent some 30% of the total polyethylene pipe market. The performance characteristics of a high density polyethylene are significantly influenced by both molecular weight and type of comonomer; the major influences being in the long-term hoop stress resistance and the environmental stress cracking resistance. Minor amounts of hexene-1 are more effective than comonomers lower in the homologous series, although there is some sacrifice of density related properties. A synergistic improvement is obtained by combining molecular weight increase with copolymerisation. The Long-term design strength of polyethylene copolymers can be determined from hoop stress measurement at elevated temperatures and by means of a separation factor of approximate value 22, extrapolation can be made to room temperature performance for a water environment. A polyethylene of black composition has a sufficiently improved performance over yellow pigmented pipe to cast doubts on the validity of internationally specifying yellow coded pipe for gas distribution service. The chemical environment (condensate formation) that can exist in natural gas distribution networks has a deleterious effect on the pipe performance the reduction amounting to at least two decades in log time. Desorption of such condensate is very slow and the influence of the more aggressive aromatic components is to lead to premature stress cracking. For natural gas distribution purposes, the design stress rating should be 39 Kg/cm2 for polyethylenes in the molecular weight range of 150 - 200,000 and 55 Kg/cm2 for higher molecular weight materials.