NO914921L - PROCEDURE AND DEVICE FOR HOLE TURNING DRILL - Google Patents

PROCEDURE AND DEVICE FOR HOLE TURNING DRILL

Info

Publication number
NO914921L
NO914921L NO91914921A NO914921A NO914921L NO 914921 L NO914921 L NO 914921L NO 91914921 A NO91914921 A NO 91914921A NO 914921 A NO914921 A NO 914921A NO 914921 L NO914921 L NO 914921L
Authority
NO
Norway
Prior art keywords
drill string
tool
hole
drill
drilling
Prior art date
Application number
NO91914921A
Other languages
Norwegian (no)
Other versions
NO914921D0 (en
Inventor
Dietmar Brussmann
Original Assignee
Dietmar Brussmann
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
Priority claimed from DE19904040155 external-priority patent/DE4040155C2/en
Application filed by Dietmar Brussmann filed Critical Dietmar Brussmann
Publication of NO914921D0 publication Critical patent/NO914921D0/en
Publication of NO914921L publication Critical patent/NO914921L/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/16—Drill collars
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • 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
    • E21B7/04—Directional drilling
    • E21B7/10—Correction of deflected boreholes

Abstract

Fremgangsmåte og anordning for dreiespyleboring av hull, ved. ! bruk av en borestreng (2) som henger i en krok og består av flere sammenkoblede borerør (3) som fores ned i hullet. Det nederte borerøret (3) har på sin frie ende et rotasjons-boreverktøy (5). Borestrengen (2) er utstyrt med et belast-ningselement (6) i sitt nedre parti, slik at det oppnås skjærebelastning på verktøyet (5). Under boringen kobles det etter behov til flere borerør (3) på den øvre enden av borestrengen (2). En spylevæske føres ned gjennom den hule borestrengen (2) og ned til verktøyet (5), der den strømmer ut i hullet. Spylevæsken føres til overflaten sammen med utboret materiale. Spylevæsken i borestrengen kommuniserer med spylevæsken i hullet bare i området ved verktøyet (5). Borestrengen (2) oppdeles i hydrostatisk selvstendige partier, som i sine nedre og øvre ender påvirkes av det hydrostatiske trykk i spylevæsken i hullet. Borestrengen (2) utstyres i sitt nedre parti med i det minste ett belastnings-element (6) som understøttes av verktøyet (5). Det oppnås derved at borestrengen (2) utsettes for strekkspenning inntil den umiddelbare nærhet av verktøyet (5).Method and device for rotary flush drilling of holes, by. ! use of a drill string (2) which hangs in a hook and consists of several interconnected drill pipes (3) which are inserted into the hole. The lower drill pipe (3) has at its free end a rotary drilling tool (5). The drill string (2) is equipped with a load element (6) in its lower part, so that a cutting load is obtained on the tool (5). During drilling, several drill pipes (3) are connected to the upper end of the drill string (2) as required. A flushing fluid is passed down through the hollow drill string (2) and down to the tool (5), where it flows out into the hole. The rinsing liquid is brought to the surface together with drilled material. The washer fluid in the drill string communicates with the washer fluid in the hole only in the area of the tool (5). The drill string (2) is divided into hydrostatically independent portions, which at their lower and upper ends are affected by the hydrostatic pressure in the flushing fluid in the hole. The drill string (2) is provided in its lower part with at least one load element (6) which is supported by the tool (5). It is thereby achieved that the drill string (2) is subjected to tensile stress up to the immediate vicinity of the tool (5).

NO91914921A 1990-12-15 1991-12-13 PROCEDURE AND DEVICE FOR HOLE TURNING DRILL NO914921L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904040155 DE4040155C2 (en) 1990-07-11 1990-12-15 Rotary rinsing drilling method for deep drilling

Publications (2)

Publication Number Publication Date
NO914921D0 NO914921D0 (en) 1991-12-13
NO914921L true NO914921L (en) 1992-06-16

Family

ID=6420449

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91914921A NO914921L (en) 1990-12-15 1991-12-13 PROCEDURE AND DEVICE FOR HOLE TURNING DRILL

Country Status (3)

Country Link
GB (1) GB2250764B (en)
NL (1) NL9102084A (en)
NO (1) NO914921L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431229A1 (en) * 1994-09-02 1996-03-07 Tanke Oil Field Dev Gmbh Arrangement for drilling a deep hole with a hydrostatic decoupling element
CN107642337B (en) * 2017-11-06 2019-02-19 中国矿业大学 A kind of machine integrated drilling rod of twin tip drill formula coal mining

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB764099A (en) * 1954-12-10 1956-12-19 Bataafsche Petroleum Improvements in or relating to well drilling assemblies
GB846332A (en) * 1958-01-01 1960-08-31 James Edwin Hill Improvements in or relating to well drilling
GB2093088A (en) * 1981-02-17 1982-08-25 Mustang Tripsaver Inc Technique for Damping Oscillations in a Drill String

Also Published As

Publication number Publication date
NL9102084A (en) 1992-07-01
GB2250764A (en) 1992-06-17
GB2250764B (en) 1995-06-21
GB9126509D0 (en) 1992-02-12
NO914921D0 (en) 1991-12-13

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