Halliburton Energy Services, Inc.

Becton Dickinson and Company Limited

Halliburton Company

Nioxx LLC

Kenneth James Smith

Bradley M Wilkinson

Mikko K Jaaskelainen

Jamieson W Crawford

Brian Vandellyn Park

Neville Yu Leng Chia

Craig Owen Russ

Norman Raymond Warpinski

Neville Yu Chia

Harry D Smith, Jr

Dan M Arnold

William A Seitz

Alexandru T Balaban

William J Merrell

Cheng-Shing Chen

Ferid Murad

Norman R Warpinski

A system and method for obtaining real time down hole flow measurements and proppant concentrations between perforations and/or perforation clusters during hydraulic fracturing in multistage stimulated wells.

Real-time bottom-hole flow measurements for hydraulic fracturing with a doppler sensor in bridge plug using DAS communication

A regulator for in-line modulation of the flow rate of fluid during blood collection includes a fluid transfer device for transferring fluid from a patient to a collection device. The fluid transfer device comprises a fluid passageway defined by a tubular sidewall and a flexible member associated with a portion of the tubular sidewall. The flexible member is configured for movement with respect to the fluid passageway upon exposure of the fluid transfer device to a differential pressure during a blood collection procedure to prevent collapse of a patients blood vessel. The flexible member of the regulator can be a frame surrounding a flexible diaphragm. Alternatively, the flexible member can include a flexible material integrally formed within the tubular sidewall of the pressure regulator.

Vacuum pressure regulators for use during blood collection

Example apparatus, methods, and systems are described for performing bottom hole measurements in a downhole environment. In an example system, a bridge plug is deployed at a downhole location of a cased well, An optical fiber cable is deployed exterior to the casing of the well. The bridge plug includes a sensor and an acoustic signal generator, which transmits acoustic signals through the casing to the optical fiber cable.

Bridge plug sensor for bottom-hole measurements

A regulator for modulation of the flow rate of blood out of a patients blood vessel during blood collection is disclosed. The regulator includes a housing having a housing inlet, a housing outlet, and a wall defining a housing interior. At least a portion of the wall includes a flexible member. A valve is associated with the flexible member and is in communication with the housing interior. The regulator is designed so that upon an application of a differential pressure within the housing interior, the flexible member and/or valve automatically move with respect to either the housing inlet or housing outlet to modulate a flow of blood moving through the housing. A manual over-ride device can be provided to enable a user to over-ride the automatic regulation and manually regulate the flow of blood through the housing.

Methods and compositions are provided for generating and applying long-lasting therapeutic nitric oxide (NO) gas from the reaction of water-soluble chemical reactants microencapsulated in polymer matrices. In some applications the microencapsulated reactants are introduced in an aqueous gel, and in other applications they are introduced to the area of therapy either directly or in a medical device such as a therapeutic pad or dressing. In some applications, the microencapsulated chemical precursors are maintained in close physical proximity to one another in a limited volume, and using a limited amount of solvent residing within that same volume to extract and process the chemical precursors to form NO.

Extended production of nitric oxide from microencapsulated chemical reactants

A method for simultaneously measuring the formation bulk density and the thickness of casing in a cased well borehole is disclosed. Low energy gamma rays are emitted into the casing and formation in a cased borehole. Two longitudinally spaced detectors detect gamma rays scattered back into the borehole by the casing and surrounding earth materials. The count rate signals from the two detectors are appropriately combined according to predetermined relationships to produce the formation bulk density and the casing thickness, which are recorded as a function of borehole depth.

Simultaneous gamma ray measurement of formation bulk density and casing

Growing community of inventors

Houston, TX, United States of America

Kenneth James Smith