United States National Museum, Smithsonian Institution, United States. Department of the Interior · Washington : Smithsonian Institution Press, [etc.]; for sale by the Supt. of Docs., U.S. Govt Print. Off. · leaf 317
17 NATURAL GAS. mined the intensity of the resulting pressure in the reservoir ; that is, a high degree of compression produced a high rock pressure, and a low degree of compression produced a low rock pressure. Typical rock pressure decline curves are shown in figures 3 and 4. … FIG. 3. DECLINE IN BOCK PBESSUBE OF NATURAL GAS WELLS OF THE UNITED FUEL GAS CO. IN KERMIT FIELD IN KENTUCKY AND WEST VIRGINIA. WHY KOCK PRESSURE AND VOLUME MUST DECLINE. The rock pressure and volume must decline as gas is removed, because in the removal of the deposit of gas we are confronted with…
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