Patent ID: 11959343
Assignee: WORKOVER SOLUTIONS, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 26:
27. The method of claim 22, wherein in step (a) the drilling system further includes: a second driving device and a second separation device disposed upstream of the second driving device and including an external housing, the external housing of the second separation device including a sidewall; the second driving device configured to convert hydraulic or pneumatic horsepower into mechanical horsepower; the second separation device including a filter flow path and a flush flow path; wherein the flush flow path of the second separation device extends to a flush outlet on an outer surface of the second separation device, the flush outlet of the second separation device being in direct fluid communication with a second section of the annulus between the outer surface of the second separation device and the wellbore, the flush outlet of the second separation device comprising a port extending through the sidewall of the external housing of the second separation device; wherein the second driving device and the second separation device are disposed downstream of the driving device; the method further comprising the steps of:
f) flowing the drilling media through the filter flow path of the second separation device to filter at least a portion of any solids within the drilling media; wherein any filtered solids are retained within the second separation device;
g) flowing the drilling media to the second driving device; and h) activating the second separation device to flow the drilling media through the flush flow path of the second separation device to flush at least a portion of the filtered solids through the flush flow path of the second separation device and through the flush outlet of the second separation device and into the second section of the annulus.