| About Class II Injection Wells |
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Class II wells inject fluids associated with oil and natural gas production. Most of the injected fluid is brine that is produced when oil and gas are extracted from the earth (about 10 barrels of brine for every barrel of oil). The brine is reinjected to increase production, or for disposal. Some Class II wells are used to store hydrocarbon products. Class II wells inject 300 billion gallons of fluid each year. They comprise 41 percent of U.S injection wells. What is An Underground Injection Well? Basically, injection wells are man-made or improved "holes" in the ground, which are deeper than their widest surface dimension and are used to discharge or dispose of fluids underground. When properly sited, constructed, and operated, injection wells can be an effective and environmentally safe means of fluid waste disposal. There are many different types of injecition wells, but they are all similar in their basic function. The Federal UIC program has grouped injection wells into five categories. |
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Technical and Economic Evaluation of Saline Ground Water Under the Safe Drinking Water Act and the UIC Regulations Document pdf Appendices pdf |
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Current Class II Peer Reviews: |
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