Cementation txo cov porosity thiab permeability ntawm cov xuab zeb. Qee qhov xwm txheej, txawm li cas los xij, kev daws cov cement lossis nplej tuaj yeem thim qhov qauv no.
Dab tsi cuam tshuam rau lub pob zeb porosity?
Ntau yam tuaj yeem cuam tshuam qhov porosity. Nyob rau hauv cov pob zeb sedimentary thiab sediments, tswj ntawm porosity muaj xws li sorting, cementation, overburden stress (txog rau faus qhov tob), thiab grain shape.
Puas sediment loj cuam tshuam qhov porosity?
Rau cov av tsis sib xyaw, qhov loj dua cov nplej loj, qhov porosity qis dua(Table 1). b. Rau consolidated shale thiab sandstone sediments, qhov loj ntawm cov nplej loj, qhov porosity siab dua.
Lub luag haujlwm ntawm cementation yog dab tsi?
Cementation, hauv geology, hardening thiab welding ntawm clastic sediments (cov tsim los ntawm cov pob zeb uas muaj nyob rau hauv cov pob zeb) los ntawm nag lossis daus ntawm cov ntxhia hauv qhov pore. … Cov cement tsim ib qho tseem ceeb thiab tseem ceeb ntawm pob zeb, thiab nws cov nag lossis daus cuam tshuam rau qhov porosity thiab permeability ntawm pob zeb.
Compaction thiab cementation cuam tshuam li cas rau qhov porosity ntawm pob zeb sedimentary?
Compaction yog txheej txheem kuaj mob uas pib ntawm kev faus neeg thiab tej zaum yuav txuas ntxiv thaum lub sij hawm faus rau qhov tob ntawm 9 km (30, 000 ft) lossis ntau dua. Kev ntsuas nce nce qhov ntom ntom ntawm pob zeb, nce nws txoj kev muaj peev xwm, thiabo-txo porosity.
