NO914921L - PROCEDURE AND DEVICE FOR HOLE TURNING DRILL - Google Patents
PROCEDURE AND DEVICE FOR HOLE TURNING DRILLInfo
- 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
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 abstract 4
- 238000005553 drilling Methods 0.000 abstract 3
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 230000002706 hydrostatic effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
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).
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)
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)
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 |
-
1991
- 1991-12-13 NL NL9102084A patent/NL9102084A/en not_active Application Discontinuation
- 1991-12-13 NO NO91914921A patent/NO914921L/en unknown
- 1991-12-13 GB GB9126509A patent/GB2250764B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB9126509D0 (en) | 1992-02-12 |
GB2250764B (en) | 1995-06-21 |
GB2250764A (en) | 1992-06-17 |
NO914921D0 (en) | 1991-12-13 |
NL9102084A (en) | 1992-07-01 |
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