Invention Grant
US07748458B2 Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments 失效
垂直水力裂缝在未固结和弱粘结沉积物中的起始和扩散控制

  • Patent Title: Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
  • Patent Title (中): 垂直水力裂缝在未固结和弱粘结沉积物中的起始和扩散控制
  • Application No.: US11363540
    Application Date: 2006-02-27
  • Publication No.: US07748458B2
    Publication Date: 2010-07-06
  • Inventor: Grant Hocking
  • Applicant: Grant Hocking
  • Applicant Address: US GA Alpharetta
  • Assignee: GeoSierra LLC
  • Current Assignee: GeoSierra LLC
  • Current Assignee Address: US GA Alpharetta
  • Agency: Smith, Gambrell & Russell
  • Main IPC: E21B43/26
  • IPC: E21B43/26
Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
Abstract:
A method and apparatus for initiating and propagating a vertical hydraulic fracture in unconsolidated and weakly cemented sediments from a single bore hole to control the fracture initiation plane and propagation of the hydraulic fracture, enabling greater yield and recovery of petroleum fluids from the formation. An injection casing with multiple fracture initiation sections is inserted and grouted into a bore hole. A fracture fluid carrying a proppant is injected into the injection casing and opens the fracture initiation sections to dilate the formation in a direction orthogonal to the required fracture azimuth plane. Propagation of the fracture is controlled by supplying fracture fluid independent to the two opposing wings of the hydraulic fracture. The injection casing initiation section remains open after fracturing providing direct hydraulic connection between the production well bore, the permeable proppant filled fracture and the formation.
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