WO2008140760A4 - Impact excavation system and method with particle separation - Google Patents

Impact excavation system and method with particle separation Download PDF

Info

Publication number
WO2008140760A4
WO2008140760A4 PCT/US2008/005955 US2008005955W WO2008140760A4 WO 2008140760 A4 WO2008140760 A4 WO 2008140760A4 US 2008005955 W US2008005955 W US 2008005955W WO 2008140760 A4 WO2008140760 A4 WO 2008140760A4
Authority
WO
WIPO (PCT)
Prior art keywords
formation
impactors
impactor
conduit
suspension
Prior art date
Application number
PCT/US2008/005955
Other languages
French (fr)
Other versions
WO2008140760A1 (en
Inventor
Gordon A Tibbitts
Paul O Padgett
Nathan J Harder
Adrian Vuyk Jr
Gregory G Galloway
Samuel R Curlett
Harry B Curlett
Original Assignee
Particle Drilling Technologies
Gordon A Tibbitts
Paul O Padgett
Nathan J Harder
Adrian Vuyk Jr
Gregory G Galloway
Samuel R Curlett
Harry B Curlett
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Particle Drilling Technologies, Gordon A Tibbitts, Paul O Padgett, Nathan J Harder, Adrian Vuyk Jr, Gregory G Galloway, Samuel R Curlett, Harry B Curlett filed Critical Particle Drilling Technologies
Publication of WO2008140760A1 publication Critical patent/WO2008140760A1/en
Publication of WO2008140760A4 publication Critical patent/WO2008140760A4/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/16—Applying separate balls or pellets by the pressure of the drill, so-called shot-drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06—Arrangements for treating drilling fluids outside the borehole
    • E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/065—Separating solids from drilling fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Abstract

A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharging from the cavity so that the impactors remove a portion of the formation. The impactors are separated from at least a portion of the fluid, and are passed to a conduit so that the impactors accumulate in the conduit before being removed from the conduit.

Claims

AMENDED CLAIMS received by the International Bureau on 01 December 2008 (01.12.08)
Claims
What is claimed is:
1. A system for excavating a subterranean formation, the system comprising: a body member having a flow of a suspension of liquid and a plurality of impactors therein and a discharge directed at the subterranean formation, so that the suspension of liquid and impactors exits the discharge into contact with the formation and alter a formation physical property by compressing and fracturing the formation with the impactOTs to remove a portion of the formation; a first conduit having therein the flow of suspension of liquid and impactors having exited from the body member discharge and an exit directed to an impactor separation system having a slurry washing step, so that circulation fluid is removed from the impactors; and a second conduit having therein impaclors from the separator separated from the circulation fluid.
2. The system of claim 1 wherein the impactor separation system comprises a screen separation process.
3. The system of claim 1 wherein the impactor separation system comprises a magnetic separation process.
4. The system of claim 2 wherein the impactor separation system further comprises a magnetic separation process.
5. The sj'Stem of claim 3 wherein the magnetic separation process includes a rotary drum magnetic separator.
6. The system of claim 1 further comprising a demagnetizer.
AMENDED SHEET (ARTICLE 19)
58
7. The system of claim 6 wherein the demagnetizer is downstream of the impactor separation system.
8. The system of claim 1 further comprising means for controlling the flow of impactors into the second conduit.
9. A method for excavating a subterranean formation, the system comprising: introducing a suspension of liquid and a plurality of impactors into at least one cavity formed in a body member; discharging the suspension from the cavity against the formation so that (he impactors contact the formation and alter a formation physical property by compressing and fracturing the formation to remove a portion of the formation; separating the impactors from at least a portion of the liquid; washing the suspension of liquid and impactors so thai circulation fluid is substantially removed from the impactors; and passing the impactors to a conduit so that a substantial portion of the impactors accumulate in the conduit.
10. The method of claim 9 wherein the separation step includes using screens to separate impactors from other particles and liquids.
1 1. The method of claim 9 wherein the, separation step includes using a rotary magnetic separator to separate impactors from other particles and liquids.
12. The method of claim 10 wherein the separation step further comprises using a rotary magnetic separator.
13. The system of claim 1 further comprising, an impactor flow control so that a substantial portion of the impactors can accumulate in the second conduit.
AMENDED SHEET (ARTICLE 19)
59
14. The system of claim 13 wherein (he impactor flow control comprises an isolation valve within the second conduit, a relief line in communication with the second conduit, a screen provided in the relief line, and a relief valve in the relief line.
AMENDED SHEET (ARTICLE 19)
60 THIS PAGE INTENTIONALLY LEFT BLANK
AMENDED SHEET (ARTICLE 19)
61 TfπS PAGE INTENTIONALLY LEFT BLANK
AMENDED SHEET (ARTICLE 19)
62
100. The compressive zone Zl may have a length Ll, but is not limited to any specific shape or size. The compressive zone Zl may be thermally altered due to impact energy.
[0080] An additional example of a structurally altered zone 102 near a point of impaction may be a zone of micro-fractures Z2. The structurally altered zone Z may be broken or otherwise altered due to the impactor 100 and/or a drill bit 60, such as by crushing, fracturing, or micro-fracturing.
[0081] Fig. 2 also illustrates an impactor 100 implanted into a formation 52 and having created an exixivalion E wherein material has been ejected from or crushed beneath the impactor 100. Thereby the excavation E maybe created, which as illustrated in Fig. 3 may generally conform to the shape of the impactor 100.
[0082] Figs. 3 and 4 illustrate excavations E where the size of the excavation may be larger than the size of the impactor 100a In Fig. 2, the impactor 100 is shown as impacted into the formation 52 yielding an excavation depth D.
[0083] An additional theory for impaction mechanics in cutting a formation 52 may postulate that certain formations 52 may be highly fractured or broken up by impactor energy. Fig. 4 illustrates an interaction between an impaclur 100 and a formation 52. A plurality of fractures F and micro-fractures MF may be created in the formation 52 by impact energy.
[0084] An impactor 100 may penetrate a small distance into the formation 52 and cause the displaced or structurally altered formation 52 to "splay out" or be reduced to small enough particles for the particles to be removed or washed away by hydraulic action.
Hydraulic particle removal may depend at least partially upon available hydraulic horsepower and at least partially upon particle wet-ability and viscosity. Such formation deformation may be a basis for fatigue lailure of a portion of the formation by "impactor contact," as the plurality of solid material impactors 100 may displace formation material back and forth.
AMENDED SHEET (ARTICLE 19)
PCT/US2008/005955 2007-05-09 2008-05-09 Impact excavation system and method with particle separation WO2008140760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/801,268 US20090200080A1 (en) 2003-04-16 2007-05-09 Impact excavation system and method with particle separation
US11/801,268 2007-05-09

Publications (2)

Publication Number Publication Date
WO2008140760A1 WO2008140760A1 (en) 2008-11-20
WO2008140760A4 true WO2008140760A4 (en) 2009-03-26

Family

ID=40002548

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/005955 WO2008140760A1 (en) 2007-05-09 2008-05-09 Impact excavation system and method with particle separation

Country Status (2)

Country Link
US (1) US20090200080A1 (en)
WO (1) WO2008140760A1 (en)

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US8186456B2 (en) 2008-02-01 2012-05-29 Pdti Holdings, Llc Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods

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US7793741B2 (en) 2003-04-16 2010-09-14 Pdti Holdings, Llc Impact excavation system and method with injection system
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US8342265B2 (en) * 2003-04-16 2013-01-01 Pdti Holdings, Llc Shot blocking using drilling mud
US7997355B2 (en) * 2004-07-22 2011-08-16 Pdti Holdings, Llc Apparatus for injecting impactors into a fluid stream using a screw extruder
US7353621B2 (en) * 2006-02-22 2008-04-08 M-I L.L.C. Cleaning apparatus for vertical separator
WO2009049076A1 (en) 2007-10-09 2009-04-16 Particle Drilling Technologies, Inc. Injection system and method
US7980326B2 (en) * 2007-11-15 2011-07-19 Pdti Holdings, Llc Method and system for controlling force in a down-hole drilling operation
US20100155063A1 (en) * 2008-12-23 2010-06-24 Pdti Holdings, Llc Particle Drilling System Having Equivalent Circulating Density
US8485279B2 (en) * 2009-04-08 2013-07-16 Pdti Holdings, Llc Impactor excavation system having a drill bit discharging in a cross-over pattern
US8925653B2 (en) 2011-02-28 2015-01-06 TD Tools, Inc. Apparatus and method for high pressure abrasive fluid injection
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CN110067522B (en) * 2019-05-15 2023-09-15 中国石油天然气集团有限公司 Novel magnetic separation system and method capable of being automatically adjusted

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Publication number Priority date Publication date Assignee Title
US8186456B2 (en) 2008-02-01 2012-05-29 Pdti Holdings, Llc Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods
US8353366B2 (en) 2008-02-01 2013-01-15 Gordon Tibbitts Methods of using a particle impact drilling system for removing near-borehole damage, milling objects in a wellbore, under reaming, coring, perforating, assisting annular flow, and associated methods

Also Published As

Publication number Publication date
WO2008140760A1 (en) 2008-11-20
US20090200080A1 (en) 2009-08-13

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