APPARATUS AND METHOD FOR CONTROLLING THE VISCOSITY OR THE DENSITY OF A DRILLING FLUID
摘要
A method for controlling viscosity (or density) of drilling fluid containing solids, said drilling fluid circulating in a drilling fluid system, which method comprises the steps of: (a) feeding drilling fluid into a container (16); (b) sensing with a viscosity (or density) sensor (19) a viscosity (or density) of drilling fluid in said container (16) and providing a viscosity (or density) signal representative thereof; (c) in response to said viscosity (or density) signal pumping a portion of said drilling fluid to a solids separation apparatus (40); (d) separating with said solids separation apparatus (40) at least some of the solids from said portion of drilling fluid; and (e) returning to said drilling fluid system drilling fluid and/or solids separated in step (d) to adjust the viscosity (or density) of said drilling fluid in said container (16).
申请公布号
WO2007045925(A1)
申请公布日期
2007.04.26
申请号
WO2006GB50334
申请日期
2006.10.17
申请人
VARCO I/P, INC.;LUCAS, BRIAN;KOCH, RICHARD JAMES;SCOTT, ERIC;STONE, LYNDON RAY