Overview of Tight Gas Field Development in the Middle East and North Africa Region

Ahmed, Ashir; Ramsey, Lee; Shehata, Ahmed

doi:10.2523/126181-ms

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(3 citation statements)

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“…3,4 In comparison with other unconventional sources of energy, tight gas resources are of paramount importance because of their considerable reserves and potential. 4,5 The estimation of unconventional gas resources in the world stands at 141,260 trillion cubic feet (TCF), which is approximately 9 times higher than the conventional gas sources. 4,6 These estimates suggest that the recovery of these sources will keep growing extensively.…”

Section: Introductionmentioning

confidence: 99%

“…4,6 These estimates suggest that the recovery of these sources will keep growing extensively. 5 Figure 1 depicts the future predictions of gas resources and the optimum distribution of unconventional gas in the United States, North America, China, and South Asia.…”

Section: Introductionmentioning

confidence: 99%

“…As conventional resources are being depleted, the world is shifting toward producing hydrocarbons from unconventional resources, which were not economically feasible earlier . Unconventional resources are now becoming a prevalent part of oil and gas industry, where they account for approximately 10% of the cumulative world yield today. , In comparison with other unconventional sources of energy, tight gas resources are of paramount importance because of their considerable reserves and potential. , The estimation of unconventional gas resources in the world stands at 141,260 trillion cubic feet (TCF), which is approximately 9 times higher than the conventional gas sources. , These estimates suggest that the recovery of these sources will keep growing extensively Figure depicts the future predictions of gas resources and the optimum distribution of unconventional gas in the United States, North America, China, and South Asia.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Cryogenic Liquid Nitrogen on the Morphological and Petrophysical Characteristics of Tight Gas Sandstone Rocks from Kirthar Fold Belt, Indus Basin, Pakistan

et al. 2020

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Tight gas sandstone production faces enormous challenges from marginal matrix porosity and permeability in rock formations. In this regard, the liquid nitrogen (LN 2 ) treatment remedy has been suggested as an appropriate stimulation approach to resolve this issue. An experimental study was carried out to investigate the cryogenic liquid nitrogen fracturing of tight rock sandstone to enhance gas recovery from such reservoirs. Three core samples from the Kirthar fold belt were subjected to LN 2 treatment for 30, 60, and 90 min. Petrophysical characterization was performed through scanning electron microscopy, atomic force microscopy, nanoindentation measurements, and quantitative X-ray diffraction technique. The results reveal wide conductive fractures with an optimum size of 30 μm in the 90 minutes treatment case. Moreover, petrophysical measurements show that porosity increases from 8 to 19% at an optimal liquid nitrogen (LN 2 ) treatment duration (90 minutes). Furthermore, the permeability of the samples increased from 31 to 53 md after treatment with liquid nitrogen. Results from nanoindentation studies after LN 2 treatment revealed a significant decrease in nanoindentation moduli because of the increase in cracked rock compressibility.

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