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N-hydroxyalkylated polyamines, methods of making n-hydroxyalkylated polyamines, and fluids containing an n-hydroxyalkylated polyamine

A technology of hydroxyalkylation and polyamines, applied in the field of N-hydroxyalkylation polyamines, preparation of N-hydroxyalkylation polyamines and fluids containing N-hydroxyalkylation polyamines, which can solve difficult synthesis , poor compound performance, etc.

Pending Publication Date: 2021-01-01
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these compounds do not perform well over a wide temperature range and are difficult to synthesize

Method used

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  • N-hydroxyalkylated polyamines, methods of making n-hydroxyalkylated polyamines, and fluids containing an n-hydroxyalkylated polyamine
  • N-hydroxyalkylated polyamines, methods of making n-hydroxyalkylated polyamines, and fluids containing an n-hydroxyalkylated polyamine
  • N-hydroxyalkylated polyamines, methods of making n-hydroxyalkylated polyamines, and fluids containing an n-hydroxyalkylated polyamine

Examples

Experimental program
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Effect test

Embodiment

[0080]In order to prove that the rheological properties of drilling fluids containing N-hydroxyalkylated polyamines have been improved, some tests were carried out, and drilling fluids containing N-hydroxyalkylated polyamines rheology modifiers (Example 1) It was compared with a drilling fluid containing a commercially available dimer diamine rheology modifier (Comparative Example 1) and a drilling fluid containing a commercially available dimer acid rheology modifier (Comparative Example 2). The formulations of these drilling fluid examples are shown in Table 1. Except for the rheology modifier composition, each drilling fluid example is the same.

[0081]Table 1: Composition of Comparative Examples 1 and 2 and Example 1

[0082]

[0083]In Table 1, "bbl" stands for barrel, which equals approximately 42 US gallons or 159 liters. Similarly, "lb / bbl" stands for pounds per barrel.V refers to an organophilic clay tackifier, commercially available from Halliburton (Ontario, CA). Lime refers to c...

Embodiment 1

[0086]The N-hydroxyalkylated polyamine of Example 1 was obtained by making PriamineTM1074 is produced by reacting with ethylene oxide. Commercial dimer diamine (Priamine 1074) was added to a 500 milliliter (mL) Parr reactor, sealed, and then bubbled with nitrogen at 120°C for one hour to drive out any oxygen and water from the solution. The system was then sealed and vented to atmospheric pressure. Add ethylene oxide from a gas cylinder containing 99.9% ethylene oxide via a swagelock quick connection. Determine the quality of the oxide by subtracting the tare valve cylinder. As ethylene oxide is added, the pressure in the vessel increases, and then the ethylene oxide reacts and transforms from the gas phase to the liquid phase, causing the pressure to drop. Add ethylene oxide until the theoretical maximum of 4 moles of ethylene oxide to 1 mole of priamine is reached, or the weight ratio of priamine to ethylene oxide is 1:0.36. When other amine-amines are used as reactants, the theor...

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Abstract

N-hydroxyalkylated polyamines, methods of making N-hydroxyalkylated polyamines, and drilling fluids containing N-hydroxyalkylated polyamines are provided, in which the N-hydroxyalkylated polyamine includes Formula (I): where R1 and R2 are independently a -C or -CH group; R3 is an aliphatic hydrocarbyl; R4 and R5 are independently acyclic hydrocarbyls, or R1, R2, R4, and R5 are covalently connectedto form an unsaturated cyclic hydrocarbyl; and R6, R7, R8, and R9 are independently acyclic hydrocarbyls or acyclic heterohydrocarbyls.

Description

[0001]Cross references to related applications[0002]This application claims the benefit of U.S. Patent Application Serial No. 15 / 860,831 filed on January 3, 2018, the entire contents of which are incorporated herein by reference.Technical field[0003]Embodiments of the present disclosure relate to N-hydroxyalkylated polyamines, methods for preparing N-hydroxyalkylated polyamines, and fluids containing N-hydroxyalkylated polyamines.Background technique[0004]Drilling fluids in the oil and gas industry perform countless tasks, including cleaning wells, keeping drill cuttings suspended, reducing friction, lubricating drilling tools, maintaining wellbore stability, and preventing fluid loss. The drilling fluid must be viscous to suspend the cuttings in the fluid, and the viscosity must be controlled over a wide temperature range, because oil and gas wells can be located in many different places, for example, conditions can vary from ice-cold frozen permafrost. 0℃ to over 400℃ in geotherma...

Claims

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Application Information

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IPC IPC(8): C07C215/14C09K8/36
CPCC07C215/14C09K8/36C07C213/00C07B41/02C07C215/10C07C213/04
Inventor 马修·希尔菲格B·拉加瓦·雷迪
Owner SAUDI ARABIAN OIL CO
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