Method of slickwater fracturing

a technology of hydraulic fracturing and slickwater, which is applied in the direction of fluid removal, chemistry apparatus and processes, and wellbore/well accessories, etc., can solve the problems of easy shear degradation of polyethylene oxide, and achieve the effect of effective proppant carrying capacity, efficient pumping and high viscosity

Inactive Publication Date: 2013-01-31
BAKER HUGHES INC
View PDF12 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014]The present invention is directed to a method of slickwater fracturing comprising introducing into a wellbore an aqueous fracturing fluid comprising a nonionic polymer and polyethylene oxide. Polyethylene oxide (PEO) provides friction reduction to the fracturing fluid so it can be more efficiently pumped into the subterranean formation. However, polyethylene oxide is prone to shear degradation, which commonly occurs under turbulent flow conditions arising from high pressure pumping. A nonionic polymer is included in the fracturing composition to absorb the shear forces and protect the polyethylene oxide from degradation. The nonionic polymer also adds viscosity to the fracturing fluid to provide effective proppant-carrying capacity.

Problems solved by technology

However, polyethylene oxide is prone to shear degradation, which commonly occurs under turbulent flow conditions arising from high pressure pumping.

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
  • Method of slickwater fracturing
  • Method of slickwater fracturing
  • Method of slickwater fracturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023]Illustrative embodiments of the invention are described below as they might be employed in the operation and in the treatment of oilfield applications. In the interest of clarity, not all features of an actual implementation are described in this specification. It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developers' specific goals, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure. Further aspects and advantages of the various embodiments of the invention will become apparent from consideration of the following description.

[0024]The present invention is directed to a method of slickwater fracturing comprising introducing into a wellbore an ...

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

The present invention relates to a method of slickwater hydraulic fracturing of a subterranean formation comprising introducing into a wellbore an aqueous fracturing fluid comprising a nonionic polymer and polyethylene oxide.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a new method for hydraulic fracturing of a subterranean formation penetrated by a wellbore.BACKGROUND OF THE INVENTION[0002]Hydraulic fracturing techniques are widely used to stimulate oil and gas production from low-permeability reservoirs. During hydraulic fracturing, a fluid is injected into a wellbore under high pressure causing fractures to open around the wellbore and into the subterranean formation. Often a proppant, such as sand, is included in the fracturing fluid to keep the fractures open when the treatment is complete. Ideally, hydraulic fracturing creates high-conductivity communication with a large area of the formation allowing for an increased rate of oil or gas production.[0003]Slickwater fracturing is a type of hydraulic fracturing that uses a low viscosity aqueous fluid to induce the subterranean fracture. Slickwater fluids are basically fresh water or brine having sufficient friction reducing agent to m...

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(United States)
IPC IPC(8): E21B43/26
CPCC09K8/68C09K2208/28F17D1/17C09K8/80C09K8/885C09K8/90E21B43/267
Inventor SUN, HONGQU, QISTEVENS, RICHARD
Owner BAKER HUGHES INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap