Abstract: A flow apparatus for a separation apparatus for separating solids from a solids laden drilling fluid includes a feed conduit for feeding solids laden drilling fluid to the separation apparatus, a liquid discharge conduit for conveying a liquid phase discharge from the separation apparatus, and a solids discharge port for allowing discharge of solids phase from the separation apparatus. Also included is a parameter measuring apparatus connected to the feed conduit and the liquid discharge conduit for measuring at least one parameter of at least one of the solids laden drilling fluid and the liquid phase discharge.

Abstract: A flow apparatus for a separation apparatus for separating solids from a solids laden drilling fluid, the flow system comprising a feed conduit (207,216) for feeding solids laden drilling fluid to the separation apparatus (10), a liquid discharge conduit (218) for conveying discharged liquid phase from said separation apparatus (10) and a solids discharge port (230) for allowing discharge of solids phase from said separation apparatus, characterised in that said flow system comprises a parameter measuring apparatus (212) connected to said feed conduit (207,216) and said liquid discharge conduit (218).

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).

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.

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).

Abstract: A system for controlling viscosity of drilling fluid, the system, in certain aspects, including a container of the material, a viscosity sensor in the container for producing viscosity signals, a centrifuge for removing solids from the material, drive apparatuses for driving a rotatable bowl and a rotatable conveyor of the centrifuge, pump apparatus for pumping material, drive apparatus for the pump apparatus, and a control system for controlling the centrifuge and the pump apparatus in response to viscosity signals so that selected solids from material processed by the centrifuge are removed to control viscosity of drilling fluid material in the container; and in certain aspects, a similar system for controlling density of a drilling fluid material.

Abstract: A system for controlling a centrifuge processing drilling fluid, the system, in certain aspects, including a container of the material, a sensor in the container for producing signals indicative of a fluid density parameter, a centrifuge for removing solids from the material, drive apparatuses for driving a rotatable bowl and a rotatable conveyor of the centrifuge, pump apparatus for pumping material, drive apparatus for the pump apparatus, and a control system for receiving the signals and controlling the centrifuge in response to the density parameter of the drilling fluid.

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).

Abstract: A process for cleaning a material with a cleaning system having system apparatus and at least one electronic device associated with the system apparatus, the at least one electronic device having a specified temperature operation range, the system having contacting apparatus, the process including contacting a material with an extracting fluid under conditions of temperature and pressure sufficient to maintain the extracting fluid at, near or above its critical point to produce a clean material, flowing the extracting fluid from the contacting apparatus to pressure reducing apparatus to lower pressure of the extracting fluid, lowering the pressure of the extracting fluid with the pressure reducing apparatus, thereby cooling the extracting fluid producing cooled extracting fluid, and flowing the cooled extracting fluid in heat exchange relation with the at least one electronic device to maintain temperature of the at least one electronic device within the specified temperature operation range; and a system for