Method and apparatus for measuring pressure in a sealed well using a differential transducer
A system and method are disclosed for measuring pressure in a sealed well using a differential transducer. A differential transducer is employed in a number of applications to measure either the pressure in the upper portion of a well or the level of liquid contained in the well. In each application...
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| creator | KUESTNER WILLIAM J BECKER WILLIAM L |
| description | A system and method are disclosed for measuring pressure in a sealed well using a differential transducer. A differential transducer is employed in a number of applications to measure either the pressure in the upper portion of a well or the level of liquid contained in the well. In each application, the back side of the differential transducer is vented to the same pressure as is present in the upper portion of the well. In one embodiment, the present invention is used to determine information relating to the liquid level in a well during a soil vapor extraction procedure. The information is then used to control a pump which maintains a desired liquid level in the well. In another embodiment, the present invention is used to determine information relating to the liquid level in a well during a pneumatic slug test. The information is then used to determine how quickly the well can recover from changes in pressure. In an alternate embodiment, the present invention is used to measure the effects of a vacuum applied to one well on another well located some distance away. The measured effect is then used to calculate the permeability of the soil between the wells. |
| format | Patent |
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A differential transducer is employed in a number of applications to measure either the pressure in the upper portion of a well or the level of liquid contained in the well. In each application, the back side of the differential transducer is vented to the same pressure as is present in the upper portion of the well. In one embodiment, the present invention is used to determine information relating to the liquid level in a well during a soil vapor extraction procedure. The information is then used to control a pump which maintains a desired liquid level in the well. In another embodiment, the present invention is used to determine information relating to the liquid level in a well during a pneumatic slug test. The information is then used to determine how quickly the well can recover from changes in pressure. In an alternate embodiment, the present invention is used to measure the effects of a vacuum applied to one well on another well located some distance away. The measured effect is then used to calculate the permeability of the soil between the wells.</description><edition>5</edition><language>eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL ; METERING BY VOLUME ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; PHYSICS ; TESTING</subject><creationdate>1994</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940816&DB=EPODOC&CC=US&NR=5337601A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19940816&DB=EPODOC&CC=US&NR=5337601A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUESTNER; WILLIAM J</creatorcontrib><creatorcontrib>BECKER; WILLIAM L</creatorcontrib><title>Method and apparatus for measuring pressure in a sealed well using a differential transducer</title><description>A system and method are disclosed for measuring pressure in a sealed well using a differential transducer. A differential transducer is employed in a number of applications to measure either the pressure in the upper portion of a well or the level of liquid contained in the well. In each application, the back side of the differential transducer is vented to the same pressure as is present in the upper portion of the well. In one embodiment, the present invention is used to determine information relating to the liquid level in a well during a soil vapor extraction procedure. The information is then used to control a pump which maintains a desired liquid level in the well. In another embodiment, the present invention is used to determine information relating to the liquid level in a well during a pneumatic slug test. The information is then used to determine how quickly the well can recover from changes in pressure. In an alternate embodiment, the present invention is used to measure the effects of a vacuum applied to one well on another well located some distance away. 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A differential transducer is employed in a number of applications to measure either the pressure in the upper portion of a well or the level of liquid contained in the well. In each application, the back side of the differential transducer is vented to the same pressure as is present in the upper portion of the well. In one embodiment, the present invention is used to determine information relating to the liquid level in a well during a soil vapor extraction procedure. The information is then used to control a pump which maintains a desired liquid level in the well. In another embodiment, the present invention is used to determine information relating to the liquid level in a well during a pneumatic slug test. The information is then used to determine how quickly the well can recover from changes in pressure. In an alternate embodiment, the present invention is used to measure the effects of a vacuum applied to one well on another well located some distance away. The measured effect is then used to calculate the permeability of the soil between the wells.</abstract><edition>5</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL METERING BY VOLUME MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING |
| title | Method and apparatus for measuring pressure in a sealed well using a differential transducer |
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