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Hydraulic fracturing system and method

A technology for hydraulic fracturing and fracturing pump, which is applied in the field of hydraulic fracturing systems and methods, and can solve problems such as impracticality and uneconomical operation.

Inactive Publication Date: 2019-03-15
GAS TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These techniques are not practical in long horizontal wells where 100 or more perforation clusters are used to stimulate long horizontal wells
Furthermore, the waiting time for the degradable ball closure to dissolve would make the operation uneconomical

Method used

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  • Hydraulic fracturing system and method
  • Hydraulic fracturing system and method
  • Hydraulic fracturing system and method

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Embodiment

[0058] Variable-flow fracturing experiments in shale resources have shown increased production when comparing fracture stages that have been performed with rapid flow fluctuations (variable-flow fracturing) to stages without rapid flow fluctuations. While production rate or flow changes are reliable indicators of technology impact, it does not necessarily lead to optimization of technology or future improvements. As will be understood by those skilled in the art and guided by the teachings provided herein, production itself does not lead to an underestimation of the underlying physical processes that drive production increases.

[0059] Discussed below are a number of ongoing efforts to better understand variable flow fracking at the underlying physics level, as well as ongoing field implementations, software development, analytical techniques, correlations, etc. for further optimization.

[0060] Calculating the number of open perforations during a hydraulic fracturing treatm...

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Abstract

A hydraulic fracturing system and method for enhancing effective permeability of earth formations to increase hydrocarbon production, enhance operation efficiency by reducing fluid entry friction dueto tortuosity and perforation, and to open perforations that are either unopened or not effective using traditional techniques, by varying a pump rate and / or a flow rate to a wellbore.

Description

[0001] Statement Regarding Federally Sponsored Research or Development [0002] This invention was made with Government support under Contract No. DE-AC26-07NT42677 awarded by the US Department of Energy. The government has certain rights in this invention. technical field [0003] The present invention relates to a hydraulic fracturing system and method for enhancing the effective permeability of low-permeability formations to increase hydrocarbon production, improving operational efficiency by reducing fluid entry friction due to bending and perforating, and opening for use Perforations that do not open or do not open effectively with conventional perforating techniques, including those utilizing shaped explosives, and reducing entry friction in slotted tubing during multi-stage hydraulic fracturing operations. Background technique [0004] Hydraulic fracturing is a method of extracting hydrocarbons from a formation in which thousands of gallons of fracturing fluid (usual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B34/02
CPCE21B43/26E21B43/2607
Inventor 乔丹·西泽巴卡蒂波特伊安·迈蒂伊拉吉·萨利希
Owner GAS TECH INST