F17D3/12

Catalyst composition for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

A catalyst consisting essentially of at least one tertiary monophenyl amine having a formula R.sup.1R.sup.2N-aryl, where R.sup.1 and R.sup.2 are the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of R.sup.1 and R.sup.2 contain at least one carbon atom; at least one titanium halide having a formula TiX.sub.m, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlR.sub.n Y.sub.3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-3. Further, the catalyst is absent of a carrier or support.

Catalyst composition for making ultra high molecular weight poly (alpha-olefin) drag reducing agents

A catalyst consisting essentially of at least one tertiary monophenyl amine having a formula R.sup.1R.sup.2N-aryl, where R.sup.1 and R.sup.2 are the same or different, and each is a hydrogen, an alkyl, or a cycloalkyl group, where at least one of R.sup.1 and R.sup.2 contain at least one carbon atom; at least one titanium halide having a formula TiX.sub.m, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlR.sub.n Y.sub.3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-3. Further, the catalyst is absent of a carrier or support.

Method of reducing drag in a conduit

A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C.sub.4-C.sub.30 -olefin drag reducing agent (DRA) and introducing the UHMW C.sub.4-C.sub.30 -olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX.sub.m, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlR.sub.nY.sub.3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

Method of reducing drag in a conduit

A method of reducing drag in a conduit. The method includes producing ultra high molecular weight (UHMW) C.sub.4-C.sub.30 -olefin drag reducing agent (DRA) and introducing the UHMW C.sub.4-C.sub.30 -olefin polymer DRA into the conduit to reduce drag in the conduit. The catalyst consists essentially of at least one tertiary monophenyl amine selected from the group consisting of N,N-diethylaniline, N-ethyl-N-methylparatolylamine, N,N-dipropylaniline, N,N-diethylmesitylamine, and combinations thereof; at least one titanium halide having a formula TiX.sub.m, where m is from 2.5 to 4.0 and X is a halogen containing moiety; and at least one cocatalyst having a formula AlR.sub.nY.sub.3-n where R is a hydrocarbon radical, Y is a halogen or hydrogen, and n is 1-20. Further, the catalyst is absent of a carrier or support.

NITROGEN-CONTAINING ANTI-AGGLOMERANTS FOR PRESERVING THE FLUIDITY OF FLUIDS CONTAINING GAS HYDRATES
20190119553 · 2019-04-25 ·

The present invention relates to the use of a specific group of acylated nitrogen-containing compounds as anti-agglomerants for gas hydrates. The anti-agglomerants are surface active nitrogen-containing compounds with 1-7 nitrogen atoms, which compounds have at least two hydrophobic groups with 6-24 carbon atoms, and where the hydrophobic groups are connected to the remainder of the molecule by an amine moiety or an amide moiety, and which compounds have at least one C2-C5 acyl group; or a salt thereof. The invention also relates to a method for inhibiting the agglomeration of gas hydrates in a conduit, and compositions comprising the gas hydrate anti-agglomerant, a corrosion inhibitor and/or a paraffin deposition inhibitor.

PARAFFIN INHIBITION BY SOLUBILIZED CALIXARENES
20190100685 · 2019-04-04 ·

This invention relates to compositions and a process for stabilizing or improving the solubility of a phenolic resin containing a mixture of linear phenolic resins and calixarenes in a hydrocarbon solvent. This invention also relates to a paraffin-containing fluid composition comprising this stabilized (solubilized) calixarene resin. The invention also relates to methods for dispersing paraffin crystals, inhibiting paraffin crystal deposition, or treating a well or vessel to reduce the deposition of paraffin crystals, with a resin composition containing this stabilized (solubilized) calixarene resin.

PARAFFIN INHIBITION BY SOLUBILIZED CALIXARENES
20190100685 · 2019-04-04 ·

This invention relates to compositions and a process for stabilizing or improving the solubility of a phenolic resin containing a mixture of linear phenolic resins and calixarenes in a hydrocarbon solvent. This invention also relates to a paraffin-containing fluid composition comprising this stabilized (solubilized) calixarene resin. The invention also relates to methods for dispersing paraffin crystals, inhibiting paraffin crystal deposition, or treating a well or vessel to reduce the deposition of paraffin crystals, with a resin composition containing this stabilized (solubilized) calixarene resin.

PARAFFIN INHIBITION BY CALIXARENES
20190100686 · 2019-04-04 ·

This invention relates to a paraffin-containing fluid composition comprising a phenolic resin containing one or more calixarene compounds (i.e., a calixarene resin). The invention also relates to methods for dispersing paraffin crystals, inhibiting paraffin crystal deposition, or treating a well or vessel to reduce the deposition of paraffin crystals, with a calixarene resin.

PARAFFIN INHIBITION BY CALIXARENES
20190100686 · 2019-04-04 ·

This invention relates to a paraffin-containing fluid composition comprising a phenolic resin containing one or more calixarene compounds (i.e., a calixarene resin). The invention also relates to methods for dispersing paraffin crystals, inhibiting paraffin crystal deposition, or treating a well or vessel to reduce the deposition of paraffin crystals, with a calixarene resin.

Suspension for enhanced oil recovery
10240079 · 2019-03-26 · ·

Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.