GB8912396D0 - Drill bit for use in a system for drilling oil and gas wells - Google Patents

Drill bit for use in a system for drilling oil and gas wells

Info

Publication number
GB8912396D0
GB8912396D0 GB898912396A GB8912396A GB8912396D0 GB 8912396 D0 GB8912396 D0 GB 8912396D0 GB 898912396 A GB898912396 A GB 898912396A GB 8912396 A GB8912396 A GB 8912396A GB 8912396 D0 GB8912396 D0 GB 8912396D0
Authority
GB
United Kingdom
Prior art keywords
drill bit
gas wells
drilling oil
drilling
oil
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
GB898912396A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RYALL MICHAEL L
Original Assignee
RYALL MICHAEL L
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 RYALL MICHAEL L filed Critical RYALL MICHAEL L
Priority to GB898912396A priority Critical patent/GB8912396D0/en
Publication of GB8912396D0 publication Critical patent/GB8912396D0/en
Priority to EP19900305734 priority patent/EP0400921A3/en
Priority to NO90902381A priority patent/NO902381L/en
Priority to BR909002563A priority patent/BR9002563A/en
Pending legal-status Critical Current

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
GB898912396A 1989-05-30 1989-05-30 Drill bit for use in a system for drilling oil and gas wells Pending GB8912396D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB898912396A GB8912396D0 (en) 1989-05-30 1989-05-30 Drill bit for use in a system for drilling oil and gas wells
EP19900305734 EP0400921A3 (en) 1989-05-30 1990-05-25 Drill bit assembly with concentric rotatable cutting elements and method of drilling
NO90902381A NO902381L (en) 1989-05-30 1990-05-29 DRILLING CRANE FOR USE WHEN DRILLING OIL AND GAS BURNS.
BR909002563A BR9002563A (en) 1989-05-30 1990-05-30 TREPANO SET DRILLING SYSTEM AND PROCESSING TO DRILL A DRILLING HOLE IN POCO DE PETROLEO OR GAS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898912396A GB8912396D0 (en) 1989-05-30 1989-05-30 Drill bit for use in a system for drilling oil and gas wells

Publications (1)

Publication Number Publication Date
GB8912396D0 true GB8912396D0 (en) 1989-07-12

Family

ID=10657580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB898912396A Pending GB8912396D0 (en) 1989-05-30 1989-05-30 Drill bit for use in a system for drilling oil and gas wells

Country Status (4)

Country Link
EP (1) EP0400921A3 (en)
BR (1) BR9002563A (en)
GB (1) GB8912396D0 (en)
NO (1) NO902381L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9521944D0 (en) * 1995-10-26 1996-01-03 Camco Drilling Group Ltd A drilling assembly for use in drilling holes in subsurface formations
US9932772B2 (en) 2011-09-20 2018-04-03 Halliburton Energy Services, Inc. Systems and methods for limiting torque transmission

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267893A (en) * 1979-08-27 1981-05-19 Union Oil Company Of California Dual-rotating eccentric drilling apparatus and method
DE3408246C2 (en) * 1984-03-07 1986-07-31 Witte Bohrtechnik GmbH, 3060 Stadthagen Jacking device for creating underground cavities using the pipe pre-pressing process
GB8608857D0 (en) * 1986-04-11 1986-05-14 Drilex Aberdeen Ltd Drilling
US4862974A (en) * 1988-12-07 1989-09-05 Amoco Corporation Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer

Also Published As

Publication number Publication date
BR9002563A (en) 1991-08-13
NO902381D0 (en) 1990-05-29
EP0400921A2 (en) 1990-12-05
NO902381L (en) 1990-12-03
EP0400921A3 (en) 1991-09-11

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