| 21. | Liftboats are commonly used to perform maintenance on oil and gas well platforms.
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| 22. | Kaixian county has some 15 natural gas wells, the Shanghai Morning Post reported.
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| 23. | The following casing intervals are typically used in an oil or gas well:
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| 24. | Villagers were preparing for sleep when the gas well burst with a bang.
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| 25. | Kelley shouted to the others to close down the gas well.
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| 26. | Plans to try to cap the gas well Friday were postponed until Saturday.
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| 27. | Houston-based BJ provides equipment for drilling oil and natural gas wells.
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| 28. | In 2005 there were 338 active natural gas wells on the Trenton Field.
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| 29. | The natural gas wells and pipelines running through most-wanted drug lord.
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| 30. | The helium we do have is obtained from natural gas wells.
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