Varco I/p, Inc.

Tuboscope I/p, Inc.

National Oilwell Varco, L.p.

Richard James Koch

Kenneth W Seyffert

Subrata Mitra

John Patrick Wright

Eric Landon Scott

Lyndon Ray Stone

Hubert Frank Baker

Guy LaMont McClung, Iii

David L Schulte

Charles Newton Grichar

Kenneth Wayne Seyffert

Eric Scott

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.

Centrifuge control in response to viscosity and density parameters of drilling fluid

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.

Systems for centrifuge control in response to viscosity and density parameters of drilling fluids

A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the basket, and at least one dam within the basket for intercepting material introduced into the basket, and for forming a relatively deep pool of material over one or more of the screen assemblies.

Dam basket for vibratory separators

Centrifuge support

A centrifuge for separating feed material into component parts, in one aspect primarily solid and primarily liquid parts, the centrifuge, in certain aspects, including a conveyor rotatably mounted in a rotatable housing, the conveyor having an interior and at least one impeller, the rotatable housing having a separating region with a pool area and a beach area with feed material passable through the interior of the conveyor, the feed material directed radially by the impeller(s) and spread by the impeller(s), in certain aspects along the conveyor or part thereof, onto part of the pool area, and/or in certain aspects onto the beach area.

Centrifuge with impellers and beach feed

Centrifuges and conveyor apparatuses for centrifuges, the conveyor apparatus, in one aspect, having a plurality of spaced-apart flight members spaced apart along the length of the conveyor apparatus, a plurality of support members extending between, and connected to the spaced-apart flight members, the support members spaced-apart around the plurality of spaced-apart flight members, a nose member with a target end within the plurality of support members, and a feed tube for feeding fluid having a fluid exit end within the conveyor, fluid exiting the fluid exit end flowable to the target end of the nose member; a centrifuge with such a conveyor apparatus; in one aspect the conveyor apparatus also having at least one wear protector on at least one flight member of the spaced-apart flight members and/or the conveyor apparatus having fluid accelerating apparatus and at least one wear protector positioned adjacent the accelerating apparatus to protect a flight or a support member.

Centrifuge with feed tube adapter

A conveyor for a centrifuge, the conveyor in certain aspects having a length and including a plurality of spaced-apart flight members spaced apart along the length of the conveyor, a plurality of support members extending between, and connected to the spaced-apart flight members, the support members spaced-apart around the plurality of spaced-apart flight members, the spaced-apart flight members and plurality of support members defining a plurality of open areas through which fluid to be treated by the centrifuge is flowable from within the conveyor, and at least one accelerating impeller within and connected to the conveyor for accelerating the fluid; and/or a flow enhancer for accelerating fluid, e.g., but not limited to, in a low-flow mode and/or a chamber encompassing an internal centrifuge feed tube so fluid to be treated is fed only at a beach area of a centrifuge bowl; a centrifuge with such a conveyor; and methods for using such a conveyor and such a centrifuge.

Centrifuge with open conveyor having an accelerating impeller and flow enhancer

A conveyor for a centrifuge and a centrifuge with such a conveyor, the conveyor having a plurality of spaced-apart flight members spaced apart along its length, a plurality of support members extending between, and connected to the flight members, the support members spaced-apart around the flight members, the members and support members defining a plurality of open areas through which fluid to be treated by the centrifuge is flowable from within the conveyor out into the bowl. In one aspect, a fluid velocity decreasing chamber is provided between an exit tube end and impeller apparatus for radially accelerating the fluid with the conveyor. In certain aspects the open &ldquo;caged&rdquo; conveyor structures diffuses fluid flow from the conveyor so that a dispersed unfocused flow of fluid exits the conveyor into the bowl, and, in one particular aspect with feed from within the conveyor to space adjacent a beach area of the bowl.

Growing community of inventors

Magnolia, TX, United States of America

Richard James Koch