Unlock instant, AI-driven research and patent intelligence for your innovation.

Acryloyl-based copolymers, terpolymers, and use as hydrate inhibitors

A technology of copolymers and clathrate hydrates, which can be used in drilling compositions, gas fuels, petroleum industries, etc., and can solve problems such as failure to suppress clathrate hydrates

Active Publication Date: 2018-12-21
SAUDI ARABIAN OIL CO +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, AA is not perfect as it fails to inhibit clathrate hydrate formation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acryloyl-based copolymers, terpolymers, and use as hydrate inhibitors
  • Acryloyl-based copolymers, terpolymers, and use as hydrate inhibitors
  • Acryloyl-based copolymers, terpolymers, and use as hydrate inhibitors

Examples

Experimental program
Comparison scheme
Effect test

example

[0122] The following non-limiting examples illustrate the synthesis of copolymers of general formula (I) and comparative homopolymers, and also illustrate the methods of the present disclosure. The compounds synthesized are understood to be illustrative in nature and in no way limited to the scope of general formula (I) or the methods described.

example 1

[0123] Example 1: Synthesis of acryloyl-based binary copolymers of general formula (I) in water

[0124] Materials and methods. Synthesis has general formula (I) (wherein R 1 for -(CH 2 ) 2 -O-(CH 2 ) 2 -, R 2 for Q 1 (where R 4 for -(CH 2 ) 4 -), R 3 There are no acryloyl-based binary copolymers (ie ABB) where x is about 0.5, y is about 0.5 and z is 0). Specifically, by adding ABCVA (approximately 350 milligrams, ie mg, 1.25 mmol) to a monomeric repeat unit (approximately 36.3 mmol) having the structure (M1):

[0125]

[0126] (i.e. N-acryloylmorpholine) (M1),

[0127] Monomer repeating unit of structure (M2) (about 36.3 mmol):

[0128]

[0129] (i.e. N-acryloylpyrrolidine) (M2) solution and

[0130] Thioglycolic acid (about 995 mg, 10.8 mmol) in water (about 42 mL) to form a reaction mixture to synthesize an acryloyl-based binary copolymer having the general formula (I). The reaction mixture was heated at about 63 °C under N 2 Heat for 24 hours. After...

example 2

[0132] Example 2: Synthesis of acryloyl-based binary copolymers of general formula (I) in water

[0133] Materials and methods. Unless otherwise indicated, synthesized as in Example 1 with general formula (I) (wherein R 1 for -(CH 2 ) 2 -O-(CH 2 ) 2 -, R 2 for Q 1 (where R 4 for -(CH 2 ) 6 -), R 3 Acryloyl-based binary copolymers where x is about 0.75, y is about 0.25 and z is 0) do not exist. More specifically, by adding ABCVA (approximately 350 mg, 1.25 mmol) to a monomeric repeat unit (approximately 54.45 mmol) having the structure (M1):

[0134]

[0135] (M1),

[0136] Monomeric repeat unit of structure (M3) (about 18.15 mmol):

[0137]

[0138] (i.e. N-acryloyl homopiperidine) (M3) solution and

[0139] Thioglycolic acid (about 995 mg, 10.8 mmol) in water (about 42 mL) to form a reaction mixture to synthesize an acryloyl-based binary copolymer having the general formula (I). The reaction mixture was heated at about 63 °C under N 2 Heat for 24 hours....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Copolymers having General Formula (I): [insert formula] in which R1 and R3 are chosen from divalent C4-C7 aliphatic groups and divalent C4-C7 heteroaliphatic groups, optionally substituted with one ormore C1-C6 aliphatic groups, heteroatoms independently chosen from O, N, and S, or combination thereof, where the divalent C4-C7 heteroaliphatic groups of R1 and R3 include one or two heteroatoms independently chosen from O, N, and S, and the maximum number of heteroatoms in R1 or R3 is two, R2 is chosen from Q1 and Q2, x is a molar fraction range chosen from 0.1 to 0.9, y is a molar fraction range chosen from 0.1 to 0.9, and z is a molar fraction range chosen from 0 to 0.8, where the summation of x, y, and z equals 1. Methods for inhibiting formation of clathrate hydrates include contactinga fluid with at least one copolymer of General Formula (I).

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 332,758, filed May 06, 2016, and U.S. Provisional Application No. 62 / 500,143, filed May 02, 2017, which are incorporated by reference in their entirety enter. technical field [0003] The present disclosure generally relates to acryl-based copolymers and terpolymers, to methods of synthesizing the copolymers and terpolymers, and to methods of inhibiting clathrate hydrate formation. Background technique [0004] Conditions favoring the formation of clathrate hydrates are often found in pipelines. With the expansion of offshore natural gas exploration and production, clathrate hydrate formation has become a serious operational problem in natural gas transportation and natural gas processing. Agglomeration and adhesion of clathrate hydrates to pipeline walls can reduce natural gas production, partially block pipelines, and even clog pipelines, caus...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/54C08F226/06C09K8/52
CPCC09K2208/32C08F226/06C08F220/54C09K8/52C09K2208/22C08F220/58C08F228/06C10L3/107C08F2/38C08F2/44C08F220/585C08F220/60
Inventor 穆罕默德·埃兰纳尼阿卜杜拉·阿尔-马尔基马纳尔·阿尔-埃德穆罕默德·阿尔-道奥斯谢赫·阿斯洛夫·阿里哈立德·马吉努尼
Owner SAUDI ARABIAN OIL CO