GB685511A - Improvements in or relating to apparatus for measuring and regulating variable conditions in bore-holes - Google Patents
Improvements in or relating to apparatus for measuring and regulating variable conditions in bore-holesInfo
- Publication number
- GB685511A GB685511A GB11937/51A GB1193751A GB685511A GB 685511 A GB685511 A GB 685511A GB 11937/51 A GB11937/51 A GB 11937/51A GB 1193751 A GB1193751 A GB 1193751A GB 685511 A GB685511 A GB 685511A
- Authority
- GB
- United Kingdom
- Prior art keywords
- temperature
- measuring
- pressure
- frequency
- perforations
- 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
- 230000001105 regulatory effect Effects 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000010358 mechanical oscillation Effects 0.000 abstract 1
- 230000000630 rising effect Effects 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
685,511. Electric indicating systems. MAIHAK AKT.-GES,, H. May 22, 1951 [June 9, 1950], No. 11937/51. Class 40 (i). Apparatus for the determination of pressure (or temperature) inside a borehole comprises an element sensitive to variations in pressure (or temperature) which varies the tension and hence the frequency of oscillation of a stretched steel wire, the mechanical oscillations being transmitted as electrical oscillations via the insulated pipes of the pump &c., and measured at the surface. For measuring pressure (Fig. 1), the sensitive element is a diaphragm 1 attached to a stretched steel wire 2, vibrating under the effect of an electromagnet 3 connected to the surface through the outer casing 6 and the pump rising pipe 4. The frequency of the vibrations is determined by measuring the frequency of the pick-up in the magnet coil 3. The unit is located in a housing 9 with perforations 8, surrounded by a jacket 10 with perforations 11. For measuring temperature (Fig. 2), the sensitive element 12 consists of a material having a temperature coefficient of expansion different from that of steel. The two units may be combined, and the coil connections brought to the surface via a change-over relay to enable alternate readings of pressure and temperature to be made. Specification 509,647 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE685511X | 1950-06-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB685511A true GB685511A (en) | 1953-01-07 |
Family
ID=6597879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11937/51A Expired GB685511A (en) | 1950-06-09 | 1951-05-22 | Improvements in or relating to apparatus for measuring and regulating variable conditions in bore-holes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB685511A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562038A (en) * | 2012-02-10 | 2012-07-11 | 中国海洋石油总公司 | Direct reading testing system for pressure and temperature of underground stratum |
-
1951
- 1951-05-22 GB GB11937/51A patent/GB685511A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562038A (en) * | 2012-02-10 | 2012-07-11 | 中国海洋石油总公司 | Direct reading testing system for pressure and temperature of underground stratum |
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