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表5 美国1989—2019年气井产量、气井数和单井日产量
Table 5 The gas production, number of gas wells and daily gas production per well in the United States from 1989 to 2019
年份气井产量/(108 m3在产井数/口单井日产量/[m3/(d·口)]年份气井产量/(108 m3在产井数/口单井日产量/[m3/(d·口)]
19894 448.25262 4834 642.9620054 947.47425 8873 182.70
19904 545.86269 7904 616.3320065 095.77440 5163 169.24
19914 535.68276 9874 486.3220075 375.04452 9453 251.20
19924 577.38276 0144 543.5220085 670.96476 6523 259.59
19934 726.40282 1524 589.3820095 771.75493 1003 206.86
19944 913.27291 7734 613.5220105 941.26487 6273 338.09
19954 893.72298 5414 490.9920116 391.42574 5933 047.50
19965 022.65301 8114 559.3720126 959.28577 9163 299.18
19975 052.87310 9714 451.6920136 829.41572 7423 266.87
19985 020.15316 9294 339.7220147 194.01586 2133 362.19
19994 980.98302 4214 512.4320157 469.13574 5303 561.76
20005 019.46341 6784 024.8220167 420.84571 6593 556.50
20015 133.67373 3043 767.6720177 666.69539 8753 890.65
20025 038.94387 7723 560.1620189 294.16512 6754 966.78
20035 063.56393 3273 527.03201910 269.98491 2055 728.14
20045 064.53406 1473 416.36