The migration of coal fines within a bed is reduced, inhibited or constrained by contacting the fines with nanoparticles, such as magnesium oxide crystals having an average particle size of about 30 nm. These nanoparticles may coat a proppant during the fracturing of a subterranean formation to produce methane from a coal bed therein. The nanoparticles may also treat a proppant pack in a fractured coal bed. The nanoparticles cause the coal fines to thus bind to or associate with the proppants. Thus, most of the coal fines entering fractures away from the near-wellbore region will be restrained or controlled near their origin or source and the production of methane at a desired ievei will be maintained much longer than a similar situation than where the nanoparticies are not used.
申请公布号
WO2011034692(A3)
申请公布日期
2011.07.14
申请号
WO2010US46459
申请日期
2010.08.24
申请人
BAKER HUGHES INCORPORATED;HUANG, TIANPING;CREWS, JAMES, B.;GABRYSCH, ALLEN, D.;JEFFREY, RICK, M.
发明人
HUANG, TIANPING;CREWS, JAMES, B.;GABRYSCH, ALLEN, D.;JEFFREY, RICK, M.