Cameron International Corporation

Bruce A Hogg

Thomas G Roesner

Craig L Cotton

Dennis P Nguyen

Brandon Blake Shirley

Kyle Sommerfeld

Leonard Vogel

Andrew Sanders

Tin Nguyen

A wellhead system includes a wellhead housing and a hanger configured to support a casing within the wellhead housing. The hanger includes one or more passages formed through the hanger. The wellhead system also includes a seal assembly configured to move relative to the hanger to selectively enable a flow of fluid across the hanger via the one or more passages. The hanger, the seal assembly, and a lock ring may be run together into the wellhead housing.

Systems and methods for cementing casing and sealing a hanger in a wellhead housing

A system includes a dispensing device having a material chamber to store an oilfield material and to fluidly couple to a wellhead, a plurality of flow control devices to control a flow of the oilfield material via the material chamber, a plurality of sensors to measure one or more properties related to the dispensing device, and a control system communicatively coupled to the dispensing device. The control system opens a first flow control device to fill the material chamber with the oilfield material, monitors a condition associated with the material chamber based on the properties measured via the plurality of sensors, opens a second flow control device to provide a high pressure fluid into the material chamber when the condition is present, and open a third flow control device, where the third flow control device fluidly couples the material chamber to the wellhead.

Apparatus and method of disbursing materials into a wellbore

A well stimulation system includes an inlet fluid conduit connected to a manifold, and a first wellhead assembly connected to the manifold, wherein the wellhead assembly includes a frac tree, a wellhead coupled to the frac tree, wherein the wellhead is in fluid communication with a first well, wherein the frac tree of the first wellhead assembly is configured to inlet a stimulation fluid from the manifold to the first well along a first fluid flowpath extending through the frac tree, wherein the frac tree of the first wellhead assembly is configured to outlet well fluid from the first well to the manifold along the first fluid flowpath.

Hydraulic fracturing systems and methods

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Houston, TX, United States of America

Bruce A Hogg