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Disposable Downhole Tool

a tool and tool body technology, applied in the direction of fluid removal, borehole/well accessories, construction, etc., can solve the problems of increasing production, increasing equipment and time, and greater control of fracturing the entire length of the lateral

Inactive Publication Date: 2011-11-24
BAKER HUGHES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is greater control of the frac treatment and a greater chance of fracturing the entire length of the lateral and increasing production.
While effective, such ball removal and drilling operations represent additional drill string operations that require additional equipment and time on the drill rig.

Method used

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Examples

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Embodiment Construction

[0015]Referring to FIGS. 1-4, an exemplary embodiment of a downhole frac tool 30 is disclosed. The frac tool 30 includes an outer housing 32 that includes an inner wall surface 34 defining a bore 38. Frac tool 30 also includes a valve structure 50 disposed within the bore 38. The valve structure 50 is used to provide a disposable valve 53 that is configured to selectively control the flow (F) of a frac fluid 55 within frac tool 30 as shown in FIG. 2, particularly to selectively direct flow F of frac fluid 55 from the frac tool 30 into a surrounding earth formation in conjunction with frac operations. Valve structure 50 includes a disposable plug seat 59 for seating a disposable plug 62 in sealing engagement with therewith. Disposable plug seat 59 may include all manner of suitable disposable plug seats 59 for seating various forms disposable plugs 62, such as disposable balls 63, to form various disposable plug valves 53. In one exemplary embodiment, disposable plug seat 59 may incl...

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PUM

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Abstract

A disposable downhole tool is disclosed. The tool is suitable for use as a frac tool. The tool includes a housing having an inner wall surface defining a bore. The tool also includes a valve structure disposed within the bore, the valve structure comprising a disposable plug seat, the disposable plug seat comprising a first natural material. The disposable tool may also include a disposable plug in fluid sealing engagement with the seat, the plug comprising a second natural material, the plug and the plug seat comprising a plug valve. The first and second natural materials may include sedimentary rock, such as various forms of limestone, including Carrara marble or Indiana limestone.

Description

BACKGROUND[0001]In the well completion and production arts, production systems that enable operators to pinpoint fluid placement and volume during openhole fracturing (frac) operations are very desirable. These systems are used to establish openhole isolation between zones, zone lobes, or fault lines, so fracture fluid may be delivered where it is needed, for maximum effect. The systems are designed to incorporate short-radius open-hole packers and frac sleeves to isolate intervals of an underground fluid production section for targeted fracturing treatment placement. The result is greater control of the frac treatment and a greater chance of fracturing the entire length of the lateral and increasing production.[0002]Such systems may be advantageously deployed as a one-trip installation and set in place by the application of hydraulic pressure. Isolation and casing packers may be set against a ball seat in the shoe of the liner. The drill rig can then be moved to another location an...

Claims

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Application Information

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IPC IPC(8): E21B34/00
CPCE21B21/103E21B34/14E21B34/06E21B2034/007E21B43/26E21B2200/06E21B43/27E21B34/142
Inventor HUANG, TIANPING
Owner BAKER HUGHES INC
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