GB1267626A - Devices for measuring stresses in a drill pipe - Google Patents
Devices for measuring stresses in a drill pipeInfo
- Publication number
- GB1267626A GB1267626A GB09022/70A GB1902270A GB1267626A GB 1267626 A GB1267626 A GB 1267626A GB 09022/70 A GB09022/70 A GB 09022/70A GB 1902270 A GB1902270 A GB 1902270A GB 1267626 A GB1267626 A GB 1267626A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deformable member
- safety element
- drilling
- limits
- deformable
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
- G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
-
- 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
- E21B47/007—Measuring stresses in a pipe string or casing
Abstract
1,267,626. Measuring stresses. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. April 21, 1970 [April 21, 1969], No.19022/70. Headings G1N and G1W. Axial and torsional stresses in a drilling pipe string are measured by strain gauges 7 and 8 on a relatively thin-walled elastically deformable tubular member 1 incorporated in the drilling string, and a relatively thick-walled tubular safety element 2 is arranged co-axially within (as shown) or around Fig. 3 (not shown) the deformable member 1 so that relative movement between the deformable member 1 and the safety element 2 is possible within predetermined limits, the safety element 2 preventing deformation of the deformable member 1 beyond these limits in the event of excessive stress in the drilling string. As shown in Fig. 1, the safety element 2 is connected to the deformable member 1 by pins 4, 5, 6 fast with the safety element which loosely engage circular or oval holes in the deformable member 1, relative axial and torsional movement being possible within limits set by the pins and holes. Alternatively, Fig.3 (not shown), loosely meshing screw threads (21) may define the limits of relative axial movement, a pin (19) fast with the deformable member co-operating with a hole (20) in the safety element to limit torsional movement. A tubular protection piece 15 or (18) and seals 22, 23 keep drilling fluid from reaching the strain gauges and protect the deformable member 1 from the pressure difference between the inside and outside of the drilling pipe. A plurality of devices may be connected in series with progressively thicker deformable members to cover a wide range of stress. Pressure transducers 16 and 17 sense the fluid pressures outside and inside the drilling pipe. Corrections may be made to the axial stress measurement for the weight of the drilling string below the strain gauges and for the effect of fluid pressure drop in the drilling string if turbodrilling is being done.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6912506A FR2041342A5 (en) | 1969-04-21 | 1969-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1267626A true GB1267626A (en) | 1972-03-22 |
Family
ID=9032797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB09022/70A Expired GB1267626A (en) | 1969-04-21 | 1970-04-21 | Devices for measuring stresses in a drill pipe |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS51866B1 (en) |
| BE (1) | BE749153A (en) |
| CA (1) | CA918956A (en) |
| DE (1) | DE2018511A1 (en) |
| FR (1) | FR2041342A5 (en) |
| GB (1) | GB1267626A (en) |
| NL (1) | NL168293C (en) |
| SU (1) | SU465016A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149123A1 (en) * | 2014-03-31 | 2015-10-08 | The Commonwealth Of Australia | Balance devices |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2439291A1 (en) * | 1978-10-19 | 1980-05-16 | Inst Francais Du Petrole | NEW STRESS MEASUREMENT DEVICE APPLICABLE TO A DRILLING LINING IN SERVICE |
| FR3031970B1 (en) | 2015-01-23 | 2019-08-16 | Au Liegeur-Ets J.Pontneau Denis | CYLINDRICAL BOX WITH CORK CLUTCH DEVICE |
| CN110422500A (en) * | 2019-08-30 | 2019-11-08 | 中国石油集团川庆钻探工程有限公司 | Pressure relief device and drilling fluid heavy system for drilling fluid heavy system |
| CN113155015A (en) * | 2021-03-24 | 2021-07-23 | 中国石油大学(华东) | Strain monitoring method and system during pipeline operation |
-
1969
- 1969-04-21 FR FR6912506A patent/FR2041342A5/fr not_active Expired
-
1970
- 1970-04-07 CA CA079495A patent/CA918956A/en not_active Expired
- 1970-04-17 BE BE749153D patent/BE749153A/en unknown
- 1970-04-17 DE DE19702018511 patent/DE2018511A1/en active Pending
- 1970-04-21 GB GB09022/70A patent/GB1267626A/en not_active Expired
- 1970-04-21 NL NLAANVRAGE7005723,A patent/NL168293C/en not_active IP Right Cessation
- 1970-04-21 JP JP45034206A patent/JPS51866B1/ja active Pending
- 1970-04-21 SU SU1432745A patent/SU465016A3/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149123A1 (en) * | 2014-03-31 | 2015-10-08 | The Commonwealth Of Australia | Balance devices |
| US20170059425A1 (en) * | 2014-03-31 | 2017-03-02 | The Commonwealth Of Australia | Balance devices |
| AU2015240427B2 (en) * | 2014-03-31 | 2019-05-30 | The Commonwealth Of Australia | Balance devices |
| US10378976B2 (en) | 2014-03-31 | 2019-08-13 | The Commonwealth Of Australia, Of The Secretary, Department Of Defence | Balance devices |
Also Published As
| Publication number | Publication date |
|---|---|
| NL7005723A (en) | 1970-10-23 |
| CA918956A (en) | 1973-01-16 |
| DE2018511A1 (en) | 1970-11-19 |
| FR2041342A5 (en) | 1971-01-29 |
| JPS51866B1 (en) | 1976-01-12 |
| NL168293C (en) | 1982-03-16 |
| BE749153A (en) | 1970-10-01 |
| NL168293B (en) | 1981-10-16 |
| SU465016A3 (en) | 1975-03-25 |
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