US3628131A
Expired / Lapsed
US
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Apparatus for determining salinity variations in shales
Assignee: Individual
•
Filing: 1970-03-02
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Granted: 1971-12-14
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Expires: 1990-03-02
Abstract
Abstract An apparatus for determining salinity variations in shales, automatically or semiautomatically, to substantially continuously measure the variations of the salinity of water from different elevations in a well.
Inventors
- 👤 Harold L Overton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:29
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/18; G01N27/00; G01N27/02; G01N27/04; G01N27/043
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
28 words
The apparatus set forth in claim 1, including: heating means with said grinding means for heating said shale cuttings as they are being ground to essentially dry same.
Claim 2
Dependent Claim
39 words
The apparatus set forth in claim 1, including: means for drawing off a portion of said slurry from said mixing unit; and means for measuring the resistivity of each said portion of the slurry withdrawn from said mixing unit.
Claim 3
Dependent Claim
30 words
The apparatus set forth in claim 1, wherein said means for making a measurement indicative of the salinity of said filtrate includes: means for measuring the resistivity of said filtrate.
Claim 4
Dependent Claim
30 words
The apparatus set forth in claim 2, wherein said means for making a measurement indicative of the salinity of said filtrate includes: means for measuring the resistivity of said filtrate.
Claim 5
Dependent Claim
54 words
The apparatus set forth in claim 1, wherein said means for making a measurement indicative of the salinity of said filtrate includes: means for measuring the resistivity of said filtrate; and means for measuring the electrical potential difference between a sodium ion electrode and a reference electrode with said filtrate present as the electrolyte.
Claim 6
Dependent Claim
49 words
The apparatus set forth in claim 1, wherein: said grinding apparatus has a final screen of approximately 60 mesh through which said powder therefrom passes; and each said measured quantity of water and each said predetermined quantity of said powder introduced into said mixing unit are equal in weight.
Claim 7
Dependent Claim
47 words
The apparatus set forth in claim 1, wherein said grinding means comprises: a rotatable kiln formed in a plurality of sections separated by grating having progressively smaller holes, and with each section having grinding balls therein which are progressively smaller from the inlet to the outlet thereof.
Claim 8
Dependent Claim
40 words
The apparatus set forth in claim 1, wherein said mixing unit includes: a vessel having a stirring means therein for agitation of the liquid in the vessel; and valve means for controlling the discharge of the slurry from said vessel.
Claim 9
Dependent Claim
25 words
The apparatus set forth in claim 1, including: means for applying fluid pressure to said slurry in said slurry filtering cell for force filtering same.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |