Sitz
Curtis Sitz, Katy, TX US
Patent application number | Description | Published |
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20090038799 | System, Method, and Apparatus for Combined Fracturing Treatment and Scale Inhibition - A treatment fluid for a subterranean formation includes a carrier fluid and an amount of particles including a granular scale inhibitor. The carrier fluid includes a hydratable gel fluid, a crosslinked gel fluid, an acid-based fluid, an oil-based fluid, and/or a visco-elastic surfactant. The particles include a proppant impregnated with the scale inhibitor, a solid particle formed largely from the scale inhibitor, or both. The proppant includes scale inhibitor adsorbed on porous surfaces within the proppant, and/or a porous proppant with scale inhibitor embedded in the bulk porosity of the proppant. The scale inhibitor is present in an amount between about 1% and 5% of a total weight of particles. The particles include scale inhibitor at a sufficient concentration and dissolution rate to provide acceptable scale inhibitor concentrations in produced fluids for production volumes exceeding 500 pore volumes. | 02-12-2009 |
20140151048 | USE OF OLIGO-QUATERNARY COMPOSITIONS TO INCREASE SCALE INHIBITOR LIFETIME IN A SUBTERRANEAN FORMATION - A method of inhibiting scale in a subterranean formation comprises pretreating the subterranean formation with a polyquaternary amine that serves as a squeeze life extention (SLE) agent, and then introducing a scale inhibitor pill into the subterranean formation, wherein the scale inhibitor pill includes one or more scale inhibitor compositions. For example, the polyquaternary amine may be a polymer having up to 5 quaternary amine centers, but is preferably a nonpolymeric diquaternary amine having a molecular weight of from 250 to 500. One such example is 1,3-propandiaminium, 2-hydroxy-N,N,N,N′,N′,N′-hexamethyl-, dichloride. The SLE agent is preferably introduced into the formation in a brine solution having a concentration from 0.1 to 20 weight percent. The SLE agents may be used with a variety of known scale inhibitors and scale inhibitor chemistries. | 06-05-2014 |
20140155299 | USE OF OLIGO-QUATERNARY COMPOSITIONS TO INCREASE SCALE INHIBITOR LIFETIME IN A SUBTERRANEAN FORMATION - A method of inhibiting scale in a subterranean formation comprises pretreating the subterranean formation with a polyquaternary amine that serves as a squeeze life extention (SLE) agent, and then introducing a scale inhibitor pill into the subterranean formation, wherein the scale inhibitor pill includes one or more scale inhibitor compositions. For example, the polyquaternary amine may be a polymer having up to 5 quaternary amine centers, but is preferably a nonpolymeric diquaternary amine having a molecular weight of from 250 to 500. One such example is 1,3-propandiaminium, 2-hydroxy-N,N,N,N′,N′,N′-hexamethyl-, dichloride. The SLE agent is preferably introduced into the formation in a brine solution having a concentration from 0.1 to 20 weight percent. The SLE agents may be used with a variety of known scale inhibitors and scale inhibitor chemistries. | 06-05-2014 |
Curtis D. Sitz, Katy, TX US
Patent application number | Description | Published |
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20100163494 | PREPARATION OF ENVIRONMENTALLY ACCEPTABLE SCALE INHIBITORS - Alkyl phosphonates prepared from amino acids suitable for use in inhibiting scale. The phosphonates are obtained as reaction mixtures where the level of alkyl phosphonation is deliberately controlled to provide only partial alkyl phosphonation of the amino acid. The resulting alkyl phosphonates exhibit improved environmental properties compared to the fully substituted species, while still exhibiting acceptable efficacy in the control of scale. The compositions possess advantages over existing phosphonates in that they exhibit higher biodegradation by method OECD 306. They also offer lower toxicity to marine life compared to the fully substituted species and are not expected to bioaccumulate. | 07-01-2010 |
Dean E. Sitz, Wahpeton, ND US
Patent application number | Description | Published |
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20080265565 | SUCTION COUPLING SYSTEM AND ASSEMBLY - A suction coupling includes a first union coupled to a second union. The first union includes a first tubing joint extending from a side of the first union and a male flange extending from an end of the first union. The second union includes a second tubing joint extending from a side of the second union and defines a female receptacle formed in an open end of the second union. The male flange is rotatably coupled with the female receptacle such that when suction is applied to the second union, the first union forms a liquid seal relative to the second union. | 10-30-2008 |
20080280466 | USB memory device - A USB memory device includes a circuit board, a connector, and a one-piece housing. The circuit board includes opposed major faces having a plurality of electrical contacts and a memory chip disposed on one of the major faces. The USB connector is coupled to a first end of the circuit board. The one-piece housing is over-molded over the circuit board and a portion of the connector, such that an interior of the one-piece housing contacts an entirety of the opposed major faces including the plurality of electrical contacts and the memory chip. | 11-13-2008 |
20100008712 | FLUID FLOW COUPLING ASSEMBLY AND SYSTEM - A fluid flow coupling assembly includes an inlet housing defining an inlet channel communicating with a first bushing recess and an outlet housing defining an outlet channel communicating with a second bushing recess. The assembly includes a bushing defining a flow bore communicating between the inlet channel and the outlet channel and a first bushing section disposed in the first bushing recess and a second bushing section disposed in the second bushing recess. The inlet and outlet housings are coupled to the bushing such that the inlet housing rotates about the bushing independently from the outlet housing. The first bushing section is retained between opposing walls of the first bushing recess and the second bushing section is retained between opposing walls of the second bushing recess. | 01-14-2010 |
Justin Sitz, Bryan, TX US
Patent application number | Description | Published |
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20130270311 | Universal Holder for a Clip or Magazine for a Firearm - Holders for retaining a container for ammunition can include a first portion configured for attachment to a surface, a second portion extending from the first portion, and an insertable member extending from the second portion. The insertable member can be adapted for insertion into the interior of a container for ammunition. To prevent relative movement between the container for ammunition and the first portion, friction can be created between the container and the holder through contact between the insertable member and the container or contact between the body of the holder and the container. | 10-17-2013 |
20130327799 | Universal Holder for a firearm - Holders usable to secure a firearm include a first plate, a second plate extending from the first plate at a first angle, and an insertable member extending from the second plate at a second angle. The insertable member is adapted for insertion into the barrel of the firearm to stabilize the firearm against lateral movement. Friction between the firearm and the first plate, a trigger guard engaged with the holder, or combinations thereof can stabilize the, firearm against vertical movement. Such friction can be created using application of a lateral force against the interior of the firearm barrel using the insertable member, application of a lateral force against the exterior of the firearm using a trigger guard, use of a protruding, compressible, or frictional surface on the first plate, or combinations thereof. | 12-12-2013 |
Justin C. Sitz, Bryan, TX US
Patent application number | Description | Published |
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20120255979 | Universal holder for a firearm - Holders usable to secure a firearm include a body having a first portion with a fastener for attachment to a surface, and a second portion having a member usable for insertion into the barrel of a firearm, to stabilize the firearm against movement relative to the body. Friction between the firearm and the body of the holder can be created through use of a tension member positioned between the firearm and holder and/or by angling the insertable member toward the body of the holder, which can further stabilize the firearm against undesired movement. | 10-11-2012 |
20140103083 | UNIVERSAL HOLDER FOR A CLIP OR MAGAZINE FOR A FIREARM - Holders usable to retain a clip, magazine, or other container for ammunition can include a body configured for attachment to a surface and an insertable member extending from the body, the insertable member being adapted for insertion into the interior of a container for ammunition. The insertable member can bias the container for ammunition against a portion of the body to create friction between the container and the body and preventing relative movement between the two objects. Alternatively or additionally, contact between the insertable member and the interior of the container, can create friction for preventing relative movement between the container for ammunition and the holder. The insertable element can be compressible to enable passage through an external opening in the container to facilitate removal or insertion. | 04-17-2014 |