GB1468351A - Formation dip and azimuth processing technique - Google Patents
Formation dip and azimuth processing techniqueInfo
- Publication number
- GB1468351A GB1468351A GB2061073A GB2061073A GB1468351A GB 1468351 A GB1468351 A GB 1468351A GB 2061073 A GB2061073 A GB 2061073A GB 2061073 A GB2061073 A GB 2061073A GB 1468351 A GB1468351 A GB 1468351A
- Authority
- GB
- United Kingdom
- Prior art keywords
- borehole
- planes
- dip
- azimuth
- processing technique
- 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
-
- 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
- E21B47/02—Determining slope or direction
- E21B47/026—Determining slope or direction of penetrated ground layers
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
1468351 Data processing SCHLUMBERGER Ltd 31 May 1974 [1 May 1973 1 April 1974] 20610/73 and 14306/74 Heading G4A Three dimensional representations of earth formation features are produced by computer from measurements indicative of dip and azimuth in a borehole. Signals from a plurality of measurement pads 19-22 on a diameter are processed by conventional cross correlation and averaging techniques to determine displacements between points on a corresponding dip plane whose dip # and azimuth # are then output, B, as representative of a given depth D(I). Apparent dips #<SP>1</SP> and #<SP>11</SP> are computed for two planes P<SP>1</SP>, P<SP>11</SP> in different azimuths and traces corresponding to the apparent dips are produce 1 e.g. for real time display, as plots on corresponding sides of a line representing the intersection of the planes, e.g. at the borehole. The process is repeated for a series of depths D(I). The display illustrated represents simple planar surfaces as straight lines, but in practice modelling techniques are used to predict the behaviour of the surfaces at varying distances from the borehole. Structural models, e.g. for intersecting or faulted planes or cylindrical folding are discussed in detail.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2061073A GB1468351A (en) | 1973-05-01 | 1973-05-01 | Formation dip and azimuth processing technique |
| US05/465,951 US4357660A (en) | 1973-05-01 | 1974-05-01 | Formation dip and azimuth processing technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2061073A GB1468351A (en) | 1973-05-01 | 1973-05-01 | Formation dip and azimuth processing technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1468351A true GB1468351A (en) | 1977-03-23 |
Family
ID=10148785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2061073A Expired GB1468351A (en) | 1973-05-01 | 1973-05-01 | Formation dip and azimuth processing technique |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1468351A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414656A (en) * | 1980-04-15 | 1983-11-08 | Schlumberger Technology Corporation | Well logging system for mapping structural and sedimentary dips of underground earth formations |
| FR2641889A1 (en) * | 1989-01-18 | 1990-07-20 | Schlumberger Prospection | METHOD FOR POLYCHROMIC GRAPHIC REPRESENTATION OF THE HANGING OF GEOLOGICAL LAYERS |
| WO1994029753A1 (en) * | 1993-06-14 | 1994-12-22 | Marathon Oil Company | A method for identifying faults and unconformities in a geologic formation |
-
1973
- 1973-05-01 GB GB2061073A patent/GB1468351A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414656A (en) * | 1980-04-15 | 1983-11-08 | Schlumberger Technology Corporation | Well logging system for mapping structural and sedimentary dips of underground earth formations |
| FR2641889A1 (en) * | 1989-01-18 | 1990-07-20 | Schlumberger Prospection | METHOD FOR POLYCHROMIC GRAPHIC REPRESENTATION OF THE HANGING OF GEOLOGICAL LAYERS |
| EP0379432A1 (en) * | 1989-01-18 | 1990-07-25 | Schlumberger Limited | Method for the polychrome graphical representation of the depositional slope of geological layers |
| US5057021A (en) * | 1989-01-18 | 1991-10-15 | Schlumberger Technology Corporation | Arrow-plot with color coded azimuth |
| WO1994029753A1 (en) * | 1993-06-14 | 1994-12-22 | Marathon Oil Company | A method for identifying faults and unconformities in a geologic formation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920531 |