Patent classifications
C09K8/608
Bionics-based efficiently transported and packed proppant and preparation method thereof
The present invention relates to a bionics-based efficiently transported and packed proppant and preparation method thereof, comprising enhanced fracturing fluid and biomimetic dandelion proppant; the mass ratio of the enhanced fracturing fluid and the biomimetic dandelion is: 1-2:100-400; the 100 pbw of enhanced fracturing fluid includes 0.1-1 pbw of drag reducing agent, 0.01-0.1 pbw of cleanup additive, 0.2-0.8 pbw of clay stabilizer, 0.01-0.05 pbw of bactericide, 0.01-0.2 pbw of nanoparticle enhancer, and water; the biomimetic dandelion proppant consists of modified proppant and modified fiber, and the mass ratio between the modified proppant and the modified fiber is 99-99.9:0.1-1.
Polymer Composition for Use in a Camera Module
A camera module comprising a polymer composition that includes a polymer matrix containing a liquid crystalline polymer and a mineral filler is provided. The liquid crystalline polymer contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more of the polymer. Further, the polymer composition exhibits a melt viscosity of from about 30 to about 400 Pa-s, as determined at a shear rate of 400 seconds.sup.−1 and at a temperature 15° C. higher than the melting temperature of the composition in accordance with ISO Test No. 11443:2005.
HYDRAULIC FRACTURING FLUIDS AND METHODS FOR HYDRAULIC FRACTURING
According to one or more embodiments of the present disclosure, a method for hydraulic fracturing includes pumping a hydraulic fracturing fluid through a wellbore into a subterranean formation at a pressure greater than a fracturing pressure of the subterranean formation. The hydraulic fracturing fluid may include an aqueous base fluid and a clay stabilizer consisting of one or more polyethylene polyamines having a first structure H.sub.2NCH.sub.2CH.sub.2(NHCH.sub.2CH.sub.2).sub.xNH.sub.2, where x is an integer greater than or equal to 3. The amount of the clay stabilizer may be from 1 lb.sub.m/bbl to 20 lb.sub.m/bbl relative to the total volume of the hydraulic fracturing fluid. The average molecular weight of the polyethylene polyamines in the hydraulic fracturing fluid having the first chemical structure may be from 200 g/mol to 400 g/mol. All of the polyethylene polyamines in the hydraulic fracturing fluid having the first chemical structure may be encompassed in the clay stabilizer.
Silane-functionalized polyalkyleneimine clay stabilizer for treatment of subterranean formations
Various embodiments disclosed relate to a silane-functionalized polyalkyleneimine (PAI) clay stabilizer for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include placing in the subterranean formation a silane-functionalized PAI clay stabilizer.
USE OF MULTIPLE CHARGED CATIONIC COMPOUNDS DERIVED FROM POLYAMINES FOR CLAY STABILIZATION IN OIL AND GAS OPERATIONS
Disclosed herein are the methods of using specific multiple charged cationic compounds, which are derived from polyamines through an aza-Michael addition with an α, β-unsaturated carbonyl compound, in a clay treatment composition to reduces clay swelling, clay migration, and sludge formation in a subterranean formation in oil and gas operations. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used for reducing clay swelling, clay migration, and sludge formation.
Methods for diversion and controlling fluid-loss using formate brine compositions
Methods of temporarily blocking zones of a subterranean formation for diversion, isolation, and fluid-loss control are provided. The method of diverting a fluid includes introducing a treatment fluid comprising a formate brine, xanthan gum, and a cross-linking agent into the formation; allowing the treatment fluid to set into a gel in perforations in a first zone of the formation to block the perforations in the first zone; introducing a stimulation fluid into the formation; and diverting the stimulation fluid away from the perforations in the first zone to perforations in a second zone of the formation.
Use of multiple charged cationic compounds derived from polyamines for clay stabilization in oil and gas operations
Methods of using specific multiple charged cationic compounds, which are derived from polyamines through an aza-Michael addition with an α, β-unsaturated carbonyl compound, in a clay treatment composition to reduces clay swelling, clay migration, and sludge formation in a subterranean formation in oil and gas operations are provided. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used for reducing clay swelling, clay migration, and sludge formation.
Polymer composition for use in a camera module
A camera module comprising a polymer composition that includes a polymer matrix containing a liquid crystalline polymer and a mineral filler is provided. The liquid crystalline polymer contains repeating units derived from naphthenic hydroxycarboxylic and/or dicarboxylic acids in an amount of about 10 mol. % or more of the polymer. Further, the polymer composition exhibits a melt viscosity of from about 30 to about 400 Pa-s, as determined at a shear rate of 400 seconds.sup.−1 and at a temperature 15° C. higher than the melting temperature of the composition in accordance with ISO Test No. 11443:2005.
Selective salt management for wellbore fluids using microgel particles
An aqueous-based well treatment fluid for and methods of controlling metal ions in a well, wherein the treatment fluid and methods use one or more polymer microgels, which comprise a plurality of polymer particles. Each polymer particle has a polymeric backbone bearing at least one moiety where such moiety is a chelating agent capable of boding with a metal ion.
Well treatment compositions and methods comprising certain microemulsions and certain clay control additives exhibiting synergistic effect of enhancing clay swelling protection and persistency
Compositions and methods comprising certain microemulsions and certain clay control additives for enhancing clay swelling protection and persistency in treating swelling clay of a subterranean formation of oil and/or gas wells are generally provided. The combination of certain microemulsions and certain clay control additives exhibit synergistic effects by enhancing clay swelling protection and persistency in treating swelling clay. The well treatment composition may use up to four times less concentration of clay control additive compared to using the same clay control additive alone, while still providing the same, similar, or higher degree of clay swelling protection and enhanced persistency. The microemulsion and the clay control additive may be added to a carrier fluid to form the well treatment composition, which is injected into the subterranean formation to provide enhanced clay swelling protection and persistency of continuing to provide clay swelling protection for a longer period of time during flowback.