compressed gascompressibilitycompression curvecompression joint piezoclasecompression resistance compression strengthcompression test crushing festcompression wave compressional wavecompressional fault compression faultcompressive force compressive stresscompressive rupture strengthcompressometercompressorcompressor plantcompressor stationconcave crown concave roofconcave millconchoidal fractureconchoidal structureconcreteconcrete baseconcrete storage tankcondensatecondensate gas field gas condensate fieldcondensate pipecondensate systemcondensate wellcondensed gascondensorconductivityconductivity logconductivity loggingconductor bracingconductor conductor pipe conductor stringcone bit cone rock bitcone penetrometercone sheetconformable faultconformable foldconglomerateconinental slopeconing water coningconjugate veinconnate water native waterconnecting bargeconnecting bridgeconnection pipeconsistometerconsrete perforated wall platformconstant pressure productionconstruction site