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Gelled hydrocarbon system with improved viscosity

A technology of gelling and viscosifying agent, applied in the field of enhanced gelling hydrocarbon system, which can solve problems such as equipment failure and equipment failure

Active Publication Date: 2021-06-15
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, phosphate esters have been associated with refinery equipment fouling, referring to the buildup of unwanted deposits and corrosion, which can lead to equipment failure or even equipment failure

Method used

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  • Gelled hydrocarbon system with improved viscosity
  • Gelled hydrocarbon system with improved viscosity
  • Gelled hydrocarbon system with improved viscosity

Examples

Experimental program
Comparison scheme
Effect test

example

[0040] To demonstrate the effect of combinations of hydrocarbon fluids, phosphate esters, viscosifiers and crosslinkers according to this example, seven examples were performed in which hydraulic fracturing fluids were compared to gelled hydrocarbon fracturing fluids of this example different components were tested.

example 1

[0042] Example 1 investigated three hydraulic fracturing fluids with different compositions in which clay was used as a viscosifier. Sample 1 containing diesel, phosphate ester, smectite clay viscosifier and crosslinker was compared to two comparative samples. Comparative Sample 1 lacked clay viscosifier, while Comparative Sample 2 lacked phosphate ester and crosslinker. The composition of all three samples is set forth in Table 1.

[0043] Table 1: Composition of Sample 1 and Comparative Samples 1 and 2

[0044]

[0045] To prepare Comparative Sample 1, 0.4 mL (8 gpt) of EG-2 Phosphate from Ethox Chemicals and 0.4 mL (8 gpt) of Ethox EA-3 iron-based crosslinker was added to 50 mL of diesel to form a baseline fluid. To prepare Comparative Sample 2, 0.187 g (30 ppt) of montmorillonite (MMT Aluminum Pillared Clay from Sigma Aldrich) was added without the addition of phosphate esters or crosslinkers. )) Added to 50mL diesel. in 100s -1 The viscosity of the fluid from roo...

example 2-M-I

[0048] Example 2-M-I Wyoming clay

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Abstract

Gelled hydrocarbon fracturing fluids and methods of making and using the same are provided. The gelled hydrocarbon fracturing fluid includes a hydrocarbon fluid, a phosphate ester, a crosslinker, and a viscosifier. The crosslinking agent may include iron, aluminum, or combinations thereof, and the tackifier may include clay, graphite, carbon nanotubes, metal oxide nanoparticles, and combinations thereof. The method of preparation includes combining a hydrocarbon fluid, a phosphate ester, and a crosslinking agent to form a baseline fluid. A viscosifier is added to the baseline fluid to form a gelled hydrocarbon fracturing fluid. The method of use includes treating the subterranean formation by contacting the subterranean formation with a gelled hydrocarbon fracturing fluid and creating at least one fracture in the subterranean formation.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 346,622, filed June 7, 2016, which is hereby incorporated by reference in its entirety. technical field [0003] Embodiments of the present disclosure generally relate to fluids and methods of making and using fluids for treating subterranean formations. In particular, embodiments of the present disclosure relate to enhanced gelled hydrocarbon systems, including gelled hydrocarbon fluids, methods of making the same, and methods of treating subterranean formations using the gelled fluids. Background technique [0004] Drilling fluids in the oil and gas industry perform a myriad of tasks, including propagating fractures, cleaning wells, keeping cuttings in suspension, reducing friction, lubricating drilling tools, maintaining wellbore stability, and preventing fluid loss, just to name a few. While water-based fluids can be environmentally friendly an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/64C09K8/82
CPCC09K8/82C09K8/64C09K2208/10E21B43/26C09K8/32E21B43/267
Inventor 塞缪斯·奥兹登李雷鸣盖伊赞·A·阿尔-蒙塔谢里梁枫
Owner SAUDI ARABIAN OIL CO
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