GB1301156A – Apparatus for measuring the attitute of a bore hole
– Google Patents
GB1301156A – Apparatus for measuring the attitute of a bore hole
– Google Patents
Apparatus for measuring the attitute of a bore hole
Info
Publication number
GB1301156A
GB1301156A
GB28811/70A
GB2881170A
GB1301156A
GB 1301156 A
GB1301156 A
GB 1301156A
GB 28811/70 A
GB28811/70 A
GB 28811/70A
GB 2881170 A
GB2881170 A
GB 2881170A
GB 1301156 A
GB1301156 A
GB 1301156A
Authority
GB
United Kingdom
Prior art keywords
axis
defining
vertical
pulse
borehole
Prior art date
1969-06-19
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.)
Expired
Application number
GB28811/70A
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.)
APPLIC GENERALES E ELECTRICITE
Sagem SA
Original Assignee
APPLIC GENERALES E ELECTRICITE
Sagem SA
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.)
1969-06-19
Filing date
1970-06-15
Publication date
1972-12-29
1970-06-15
Application filed by APPLIC GENERALES E ELECTRICITE, Sagem SA
filed
Critical
APPLIC GENERALES E ELECTRICITE
1972-12-29
Publication of GB1301156A
publication
Critical
patent/GB1301156A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
E21B47/00—Survey of boreholes or wells
E21B47/02—Determining slope or direction
E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum
Abstract
1301156 Measuring borehole attitude electrically SOC D’APPLICATIONS GENERALES D’ELECTRICITE ET DE MECANIQUE 15 June 1970 [19 June 1969] 28811/70 Heading G1N Apparatus for determining the angle between the axis of a borehole and (a) the vertical, (b) a horizontal reference direction, comprises a rotating member coaxial with the borehole drilling line, producing spaced electrical pulses whose intervals represent the required angular values. As shown Fig.1, a motor 12 supported coaxially with a borehole drilling line 1, carries a yoke 5 defining a horizontal axis ZZ perpendicular to the borehole axis XX, from which is supported a pendulum 7 defining the vertical axis. The motor running at a constant speed drives a shaft 13 coupled to pinions 14, 15, 17 mounted on the three axes XX, ZZ and vertical respectively. The pinion 15 freely mounted on the yoke 5 carries a member 19 which co-operates with (a) a fixed member 21 maintained in the vertical axis by association with the pendulum 7, to produce a first pulse when they overlap, and (b) a fixed member 20 maintained by the yoke 5 in the XX axis, to produce a second pulse when they overlap, the interval between the pulse corresponding to the inclination of the XX axis from the vertical. The direction of the magnetic North, constituting the horizontal reference direction, is determined by a flux gate compass 16 comprising a slotted disc core 51 Fig. 5 symmetrically wound with an AC energizing coil 53 which saturates the core on each half cycle. A pick-up coil A is wound over a small angle of the core defining a diameter DA, and the core is driven with pinion 17. The double frequency signal in coil A is fed to a detector which produces a pulse when it passes through zero, indicating that diameter DA is perpendicular to the direction of the earth’s magnetic field, and a perpendicular axis YY coincides with the magnetic North. The compass 16 also carries a member 23 which produces a pulse when it passes a fixed member 24 defining the XX axis, and the interval between these pulses corresponds to the horizontal angle between the XX axis and the magnetic North. A fifth pulse is obtained from a rotating member 26 and a fixed member 27 on the drilling line 1, defining the angular position of the motor shaft relative to the drilling line. The complete assembly is contained in a sealed section of the drilling line. Alternative means for producing a pulse defining the vertical comprises a conductive ball 190 (Figs 3, 4) running on two rails 192, 193 as the assembly is rotated in a vertical plane by pinion 15. Rail 192 is conductive and rail 193 is part conductive, part insulating, whereby the ball 190 opens and closes a circuit between the rails and one of these changes is arranged to occur when the assembly is at the lowest point, defining the vertical relative to the axis of pinion 15.
GB28811/70A
1969-06-19
1970-06-15
Apparatus for measuring the attitute of a bore hole
Expired
GB1301156A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
FR6920513A
FR2068829A5
(en)
1969-06-19
1969-06-19
Publications (1)
Publication Number
Publication Date
GB1301156A
true
GB1301156A
(en)
1972-12-29
Family
ID=9036022
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB28811/70A
Expired
GB1301156A
(en)
1969-06-19
1970-06-15
Apparatus for measuring the attitute of a bore hole
Country Status (5)
Country
Link
US
(1)
US3657637A
(en)
JP
(1)
JPS5035423B1
(en)
DE
(1)
DE2028335B2
(en)
FR
(1)
FR2068829A5
(en)
GB
(1)
GB1301156A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2122751A
(en)
*
1982-01-11
1984-01-18
Applied Tech Ass
Well mapping apparatus
CN105507884A
(en)
*
2014-09-27
2016-04-20
中国石油化工集团公司
Downhole multi-sensor measuring system and method
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
NO761414L
(en)
*
1975-05-12
1976-11-15
Teleco Inc
JPS5854010A
(en)
*
1981-09-24
1983-03-30
石綿 正彦
Air permeable polyurethane glove and production thereof
JPS58117713U
(en)
*
1982-02-04
1983-08-11
大林 勝
gloves
JPS6089211U
(en)
*
1983-11-25
1985-06-19
辻田実業株式会社
gloves
JPS60165416U
(en)
*
1984-04-12
1985-11-02
大林 勝
gloves
FR2570120B1
(en)
*
1984-09-07
1987-09-25
Alsthom Atlantique
METHODS OF MEASURING AZIMUTH AND TOOL POSITION FOR INCLINED DRILLING
CN110926423B
(en)
*
2020-02-20
2020-07-17
杭州鲁尔物联科技有限公司
House slope monitoring and early warning device
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3068400A
(en)
*
1958-10-01
1962-12-11
Pgac Dev Company
Method and apparatus for determining the dip of strata penetrated by a borehole
US3077670A
(en)
*
1959-09-23
1963-02-19
Pgac Dev Company
Method and apparatus for making a dipmeter survey of a borehole
US3100350A
(en)
*
1960-07-18
1963-08-13
Clifford K Brown
Magnetic direction and inclination indicating device
1969
1969-06-19
FR
FR6920513A
patent/FR2068829A5/fr
not_active
Expired
1970
1970-06-09
DE
DE19702028335
patent/DE2028335B2/en
not_active
Withdrawn
1970-06-15
US
US45966A
patent/US3657637A/en
not_active
Expired – Lifetime
1970-06-15
GB
GB28811/70A
patent/GB1301156A/en
not_active
Expired
1970-06-18
JP
JP45053388A
patent/JPS5035423B1/ja
active
Pending
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2122751A
(en)
*
1982-01-11
1984-01-18
Applied Tech Ass
Well mapping apparatus
CN105507884A
(en)
*
2014-09-27
2016-04-20
中国石油化工集团公司
Downhole multi-sensor measuring system and method
CN105507884B
(en)
*
2014-09-27
2019-01-01
中国石油化工集团公司
A kind of underground multi-sensor measurement system and method
Also Published As
Publication number
Publication date
US3657637A
(en)
1972-04-18
DE2028335B2
(en)
1972-01-27
FR2068829A5
(en)
1971-09-03
DE2028335A1
(en)
1971-09-23
JPS5035423B1
(en)
1975-11-15
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Legal Events
Date
Code
Title
Description
1973-05-09
PS
Patent sealed [section 19, patents act 1949]
1985-02-06
PCNP
Patent ceased through non-payment of renewal fee
