Automatic vibratory separator

a vibratory separator and automatic technology, applied in the direction of filtration separation, separation process, borehole/well accessories, etc., can solve the problems of large undesirable particles, too quickly or without sufficient weight to be filtered adequately, fluid or material that is too deep may not be adequately filtered, etc., to achieve the effect of affecting screening efficiency and effectiveness

US20080128334A1Inactive Publication Date: 2008-06-05NAT OILWELL VARCO LP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Publication Date
2008-06-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

Methods for automatically controlling a vibratory separator, e.g., but not limited to a shale shaker for processing drilling fluid, the methods in certain aspects including: introducing material to a vibratory separator; sensing with sensor apparatus a state parameter indicative of operation of the vibratory separator; providing a signal indicative of a value of said state parameter to control apparatus; and, with the control apparatus, automatically controlling the vibratory separator based on the level of the state parameter. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 CFR 1.72(b).
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This is a division of U.S. application Ser. No. 11 / 096,192 filed Mar. 31, 2005 which is: a continuation-in-part of U.S. application Ser. No. 10 / 949,882 filed Sep. 25, 2004, issued as U.S. Pat. No. 7,278,540 on Oct. 9, 2007; a continuation-in-part of U.S. application Ser. No. 10 / 835,256 filed Apr. 29, 2004; a continuation-in-part of U.S. Ser. No. 10 / 512,372 filed Oct. 25, 2004 which claims priority from U.S. Ser. No. 10 / 134,027 filed Apr. 26, 2002 and Application Ser. No. PCT / IB03 / 01031 filed Mar. 12, 2003; and a continuation-in-part of U.S. Ser. No. 10 / 373,216 filed Feb. 24, 2003 which claims priority from U.S. Application Ser. No. 60 / 424,262 filed Nov. 6, 2002—all of which are incorporated fully herein and with respect to all of which the present invention claims priority under the Patent Laws.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] This invention is directed to vibratory separators and shale shakers; to apparatus...

Examples

Embodiment Construction

[0087]Referring now to FIGS. 2A and 2B, a drilling system 10 according to the present invention includes a rotary bit 12 attached to the lower end of a length of hollow drill pipe 14 suspended from a drilling derrick (not shown).

[0088]The drill pipe 14 and attached drill bit 12 are rotated to cut into the subsurface formation 16 to form a wellbore 18. The drill pipe 14 passes through a wellhead assembly 20 located at the surface. The wellhead assembly 20 controls flow of drilling fluid into the well. During the drilling of the well, a drilling fluid 22 commonly referred to as drilling mud is pumped down the interior of the hollow drill pipe 14. The drilling mud exits jets such as jet 24 in drill bit 12 and impinges upon a bottom 26 of the well bore 18. The drilling fluid exiting the jets 24 flushes away from the bottom 26 of the wellbore 18 the cuttings or particles generated as the drill bit 12 cuts into the earthen formation 16. A stream of drilling mud 22 then carries the cutting...