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Class Information
Number: 175/314
Name: Boring or penetrating the earth > With well-type screen
Description: Apparatus combined with means for separating solids from earth fluid flowing into a well conduit.

Patents under this class:

Patent Number Title Of Patent Date Issued
8689878 Junk basket with self clean assembly and methods of using same Apr. 8, 2014
8651181 Downhole filter tool Feb. 18, 2014
8434561 Controlled hydrostatic pressure completion system May. 7, 2013
8336617 Downhole filter tool Dec. 25, 2012
8316965 Drilling tool with fluid cleaner Nov. 27, 2012
8302676 Drilling, completing and stimulating a hydrocarbon production well Nov. 6, 2012
8149132 System and method for hard line communication with MWD/LWD Apr. 3, 2012
8028768 Displaceable plug in a tool string filter Oct. 4, 2011
7980330 Well tubular, retrievable joint strainer and method Jul. 19, 2011
7950458 Drilling, completing and stimulating a hydrocarbon production well May. 31, 2011
7926595 Filter sub Apr. 19, 2011
7735553 Snap-lock bushing for prepacked screens Jun. 15, 2010
7708076 Method of using a drill in sand control liner May. 4, 2010
7631705 Enhanced screen auger sampling system Dec. 15, 2009
7549486 Screen apparatus and method Jun. 23, 2009
7303029 Filter for a drill string Dec. 4, 2007
7275594 Stab guide Oct. 2, 2007
7243742 Drill pipe screen Jul. 17, 2007
7188688 Down-hole tool filter and method for protecting such tools from fluid entrained debris Mar. 13, 2007
7165633 Drilling fluid filter Jan. 23, 2007
7108083 Apparatus and method for completing an interval of a wellbore while drilling Sep. 19, 2006
6799645 Method and apparatus for drilling and completing a well with an expandable sand control system Oct. 5, 2004
6719050 Method and apparatus for removing solid material from a well using a rotary pump Apr. 13, 2004
6715570 Two stage downhole drilling fluid filter Apr. 6, 2004
6598685 Drilling fluid screen and method Jul. 29, 2003
6431292 Device for drilling and draining holes in soil or rock Aug. 13, 2002
6207114 Reactive material placement technique for groundwater treatment Mar. 27, 2001
5372208 Tube section having slots for sampling Dec. 13, 1994
5123209 Earth engineering apparatus and method Jun. 23, 1992
5097914 Method and device for producing unadulterated water samples in drilling a well Mar. 24, 1992
4750571 Screen placement method and apparatus Jun. 14, 1988
4693318 Sand control devices and method of installation thereof Sep. 15, 1987
4681163 Sand control system Jul. 21, 1987
4649996 Double walled screen-filter with perforated joints Mar. 17, 1987
4583594 Double walled screen-filter with perforated joints Apr. 22, 1986
4526230 Double walled screen-filter with perforated joints Jul. 2, 1985
4495073 Retrievable screen device for drill pipe and the like Jan. 22, 1985
4429755 Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations Feb. 7, 1984
4368785 Well point and method of driving same Jan. 18, 1983
4363366 Screened hollow stem auger for use in well drilling and testing process Dec. 14, 1982
4074779 Backwashing system for slurry pick-up used in hydraulic borehole mining devices Feb. 21, 1978
3968847 Wellpoint jetting head Jul. 13, 1976
3965685 Method for lowering ground water Jun. 29, 1976

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