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Hydrocarbon fluid flow improver

A flow improver, fluid technology, applied in (dendrimer), identifying the claimed field, able to solve problems such as high cost

Active Publication Date: 2014-05-28
MI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process can be done using many different methods; however, this is often considered a costly procedure

Method used

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  • Hydrocarbon fluid flow improver
  • Hydrocarbon fluid flow improver
  • Hydrocarbon fluid flow improver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0056] Three embodiments of flow improvers were prepared according to the present disclosure. BoltornH20 was obtained from Perstorp (Sweden) and used without further purification. Boltorn H20 is believed to have an average molecular weight of 1750 g / mol. Lauric acid (C 12 ), palmitic acid (C 16 ) and stearic acid (C 18 ) were obtained from laboratory supplies and used without further purification. p-Toluenesulfonic acid (TsOH) was obtained from a laboratory supply and used without further purification.

example 1

[0058] 36.6 g of lauric acid (183 mmol) were mixed with 20 g of Boltorn H20 (11 mmol) and a catalytic amount of p-toluenesulfonic acid (-0.01%). The mixture was heated to 140°C and stirred for 1 hour, then placed under vacuum and stirred for a further 7 hours to yield 47.73 g of a brown viscous liquid, laurate of Boltorn H20.

example 2

[0060] Example 2 was prepared in the same manner as Example 1, using a slight molar excess (above 16 eq.) of palmitic acid. Example 3 was prepared in the same manner as Example 1, using a slight molar excess (above 16 eq.) of stearic acid. Product appearance is detailed in Table 1 below.

[0061] Table 1: Product Physical Properties

[0062] sample

Exterior

Example 1

liquid / amber

Example 2

solid / light brown

Example 3

solid / dark brown

[0063] The oil and gas fluid used as a sample is a waxy condensate. The product was observed for paraffin crystal formation and deposition, pour point temperature (PPT) reduction, rheological profile and viscosity at 4°C and 20°C.

[0064] As shown in Table 2 below, to simulate the potential deep water use of each example, each example was diluted to 25% with xylene. Initial viscosity evaluations showed that Example 1 at a concentration of 50% was within the viscosity range required for u...

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Abstract

Disclosed herein is a fluid flow improver comprising a branched dendritic core comprising a first quaternary carbon center bonded to four second carbon atoms, wherein at least three of the four second carbon atoms are individually bonded to one or more chain extender ligands to produce the branched dendritic core, wherein the branched dendritic core has greater than or equal to about 16 terminal hydroxyl groups, and wherein at least one of the terminal hydroxyl groups is esterified with at least one carboxylic acid moiety comprising from 6 to 30 carbon atoms. Methods of inhibiting deposition of paraffin and reducing pour point temperature of a hydrocarbon fluid are also disclosed.

Description

Background technique [0001] In the hydrocarbon drilling and production industry, crude oil refers to the desired (and unwanted) hydrocarbon products extracted from the surface with associated aqueous phases and minor solids. The proportion of oil and gas in crude oil varies from 5% to almost 100%, and includes thousands of different molecules, which can be divided into four compound families: saturated hydrocarbons, aromatic hydrocarbons, resins and asphaltenes. Saturates generally constitute the lightest fraction of crude oil, and within the saturate family, C 18+ Long-chain linear paraffins represent the heavy fraction of saturated hydrocarbons and are responsible for the formation of wax deposits. [0002] Paraffins are a group of general formula C n h 2n+2 A generic term for alkanes, where n is the number of carbon atoms. Paraffins can be divided into three groups: gases at room temperature (lowest carbon number alkanes, C 1 -C 4 ), liquids at room temperature (alkan...

Claims

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Application Information

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IPC IPC(8): C09K8/035C09K8/524C10L3/10C08G83/00
CPCE21B43/16C09K8/524C10L1/02C10L10/16C10G2300/302C08G83/003C10L1/1985C10G29/22C09K8/035C08G83/002C09K8/82C10L1/1983C10L3/10C10L10/14
Inventor C·Y·卡恩德卡尔T·诺德维克A·格林罗德
Owner MI