Todd Broome - The Woodlands TX Benn Voll - Houston TX Perry Douglas Baycroft - Houston TX Elmer Richard Peterson - Lafayette LA Bobby Edward Hall - Houston TX
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
F16L 3900
US Classification:
285 3, 285 93, 2851241
Abstract:
A system for preferable use in gravel packing is disclosed which includes a plurality of transport tubes which are mounted outside of gravel pack screens. The multiplicity of shunt tubes cover a particular zone so that the tubes have a varying length to deposit gravel at different portions of the zone. The tops of the tubes are preferably sealed until ready for use and activated by applied pressure. In the preferred embodiment, rupture discs are found at the tops of each of the tubes, set for different pressures so as to open up the transport tubes to the lower most portion of a particular zone and later in sequence to the higher-most portion. The transport tubes are affixed to each section of pipe and are made up when two sections of pipe are made up to alignment marks. When the marks are aligned, the transport tube segments from each pipe section are in an aligned and sealed relation while the tool joint is properly torqued.
Method For Selectively Treating Two Producing Intervals In A Single Trip
Christian F. Bayne - The Woodlands TX, US Perry D. Baycroft - Houston TX, US
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
E21B043/04 E21B033/124
US Classification:
166278, 166 51, 166191, 1663344
Abstract:
A method is disclosed that allows for sequential treatment of two zones in a single trip while isolating the zones. A fluid loss valve prevents the column of fluid in the tubing from flowing into the lower formation until activated. Zone isolation is accomplished by manipulation of a port on a wash pipe attached to the crossover assembly.
Perry D. Baycroft - Houston TX, US Elmer R. Peterson - Porter TX, US Steve Rosenblatt - Houston TX, US
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
E21B 43/10 E21B 29/10
US Classification:
166277, 166384, 166207, 138 98, 2940209
Abstract:
Casing or other well tubulars that have failed are repaired in a manner that doesn't reduce the final inside diameter and doesn't further propagate the failure. The tubular needing repair is first expanded on at least one zone above and below the damaged area. This expansion in an undamaged area arrests failure propagation when the damaged area is then expanded. After the damaged area is expanded, the patch coupled preferably with exterior seals is positioned in the expanded zone of the damaged tubular and expanded. The procedure can also be accomplished in a single trip into the well.
Use Of Coated Proppant To Minimize Abrasive Erosion In High Rate Fracturing Operations
Methods for reducing wear in pumping components during fracturing operations. A coated proppant is used that causes less wear on the pumping components as the proppant is pumped into the wellbore. The proppant coating consists of a substrate having a coating thereupon which eliminates sharp edges on the substrate and functions as a lubricant to materially reduce mechanical erosion of the pumping components. The proppant substrate may consist of any of a number of materials, including sand, ceramic, resin coated sand, or resin coated ceramic particle. The coating preferably comprises one or more layers of one or more of the following materials (or the coating having low friction coefficients is part of a mixture of the coating): antimony trioxide, bismuth, boric acid, calcium barium fluoride, copper, graphite, indium, fluoropolymers (FTFE), lead oxide, lead sulfide, molybdenum disulfide, niobium dielenide, polytetrafluoroethylene, silver, tin, or tungsten disulfideor zinc oxide. The coating material may be applied to the substrate in a number of ways known in the art.
Additives For Hydrate Inhibition In Fluids Gelled With Viscoelastic Surfactants
An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is inhibited against hydrate formation with an effective amount of an additive that could be one or more halide salts of alkali metals and alkali earth metals, formate salts, alcohols, glycols, glycol amines, sugars, sugar alcohols, amidoamine oxides, polymers such as polyamines, polyvinylpyrrolidones and derivatives thereof, polyvinyl alcohols and derivatives thereof, polycaprolactams and derivatives thereof, hydroxyethylcellulose, and mixtures thereof. These fluids are inhibited against hydrate formation and may have increased viscosity as well. The additives may increase viscosity to the point where less VES is required to maintain a given viscosity. These inhibited, aqueous, viscoelastic fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in stimulation treatments, e. g. hydraulic fracturing fluids.
Perry D. Baycroft - Houston TX, US Allen D. Gabrysch - Houston TX, US Paul M. McElfresh - Spring TX, US Eugene E. Ratterman - Spring TX, US
International Classification:
E21B 43/04
US Classification:
166278
Abstract:
The invention adds a friction reducing agent or agents to gravel slurry to decrease pressure required for proper fluid velocities so as to obtain the desired gravel propagation in an annular space around a screen assembly.
Apparatus And Method For Treating And Gravel-Packing Closely Spaced Zones
Robert D. Morton - Houston TX Christian F. Bayne - Houston TX Perry Douglas Baycroft - Houston TX
Assignee:
Baker Hughes Incorporated - Houston TX
International Classification:
E21B 4304
US Classification:
166278
Abstract:
A completion assembly facilitates gravel-packing and fracturestimulation of closely spaced zones. The assembly includes a pair of spaced screens with a production packer in between. The production packer has a short bypass flowpath therethrough to allow fluids carrying the gravel to pass the production packer so that the upper and lower zones can be gravel-packed simultaneously, as well as fracture-stimulated simultaneously. Thereafter, the presence of the gravel in the bypass tube in the packer between the zones provides some limited isolation based on the permeability of the gravel found in the bypass passage and the pressure drop across that passage. Production then can follow from the lower zone, the upper zone, or both zones depending on the completion configuration.
Repsol
Consutant
Frac Rock International Sep 2012 - Feb 2013
Technical Consultant
Perry Baycroft Apr 2008 - Apr 2011
Hydraulic Fracturing Specialist Retired
Baker Hughes 1999 - 2007
Global Applications Advisor, Pressure Pumping Services
Bj Services 1980 - 1999
Technician Representative
Education:
Humboldt State University 1965 - 1968
Skills:
Completions Oilfield Stimulation Sand Control Acidizing Hydraulic Fracturing Production Enhancement Well Stimulation Natural Gas Petroleum Project Engineering Completion Petroleum Engineering Fluids Drilling Oil/Gas Pressure Reservoir Management Deepwater Cement Formation Evaluation Hydraulics Drilling Engineering Oil and Gas Industry Frac Pumps Fracture Field Development Upstream Energy Industry Logging Offshore Drilling Onshore Reservoir Engineering Petroleum Geology Gas Wireline