EP0101158A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for monitoring and controlling well drilling parameters
Assignee: Trans-Texas Energy Inc
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Filing: 1983-06-10
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Granted: —
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Expires: 2003-06-10
Abstract
Abstract A mud logging system for receiving and displaying conditions measured during the drilling of a well including a plurality of units for receiving and processing signals from sensors responsive to the values of the conditions. A/D convertors in each of said units produce digital representations of signals received from the sensors and the digital representations are utilized with visual display means in the units for digitally displaying values of the conditions. A slave computer of the digital type is interfaced with the A/D converters and a file disc. Under control of said slave computer the digital representations are transferred to the file disc, and a recorder also under control of the slave computer displays selected ones of the conditions. The system also includes a master computer of the digital type connected to access data on the file disc, to utilize the accessed data to provide for analysis of drilling conditions.
Inventors
- 👤 Robert M. Moorhead
- 👤 Susan G. Eppler
- 👤 Mardis V. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 20:12
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/08; E21B44/00; E21B49/00; E21B49/005; Y; Y10; Y10S; Y10S367/00; Y10S367/911
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
135 words
A mud logging system for receiving and displaying \ conditions measured during the drilling of a well comprising: a) a plurality of units for receiving and processing signals from sensors responsive to the values of the conditions, b) A/D converters in each of said units for producing digital representations of signals received from said sensors, c) visual display means in said units responsive to the outputs of said A/D converters for digitally displaying values of the conditions, d) a slave computer of the digital type, e) means interfacing said A/D converters and said slave computer, , f) a file disc, g) means under control of said slave computer for transferring the digital representations to said file disc, and h) a recorder under control of said slave computer for continuously displaying selected ones of said conditions.
Claim 2
Dependent Claim
135 words
A mud logging system for receiving and displaying \ conditions measured during the drilling of a well comprising: a) a plurality of units for receiving and processing signals from sensors responsive to the values of the conditions, b) A/D converters in each of said units for producing digital representations of signals received from said sensors, c) visual display means in said units responsive to the outputs of said A/D converters for digitally displaying values of the conditions, d) a slave computer of the digital type, e) means interfacing said A/D converters and said slave computer, , f) a file disc, g) means under control of said slave computer for transferring the digital representations to said file disc, and h) a recorder under control of said slave computer for continuously displaying selected ones of said conditions.
Claim 3
Dependent Claim
40 words
The system of claim 1 including a master computer of the digital type connected to access data on said file disc, and means for programming said master computer to utilize said accessed data to provide for analysis of drilling conditions.
Claim 4
Dependent Claim
29 words
The system of claim 1 in which said slave computer is programmed to provide analysis of drilling conditions and to cause the display of the analysis in real time.
Claim 5
Dependent Claim
51 words
The system of claim 2 in which the analysis includes the computation of chloride content of drilling mud in accordance with the expression wnere F - chloride content in parts per million - R - reciprocal of conductivity in ohms per meter T - temperature of the mud in degrees fahrenheit.
Claim 6
Dependent Claim
25 words
The system of claim 4 in which the values of chloride content are visually displayed in real time and periodically stored on said file disc.
Claim 7
Dependent Claim
33 words
The system of claim 1 including:' . a) a master computer of the digital type, b) a program disc, and means interfacing said master computer with said file disc and said program disc.
Claim 8
Dependent Claim
39 words
The system of claim 6 in which means are provided initially to load said slave computer from said program disc and thereafter to render said slave computer independent of changes made to the program instructions on said program disc.
Claim 9
Dependent Claim
26 words
The system of claim 7 in which values of conditions on said file disc are accessed by said master computer to provide analysis of drilling conditions.
Claim 10
Dependent Claim
30 words
The system of claim 6 in which said master computer is enabled to access said program disc to effect changes in said programs for subsequent use by said slave computer.
Claim 11
Dependent Claim
107 words
A mud logging system for receiving and displaying conditions measured during the drilling of a well comprising: a) a plurality of display means for receiving signals from sensors responsive to the values of the conditions, . each said display means including, b) A/D converters for producing binary representations of signals from said transducers, c) timing and logic means, d) latch means under control of said timing and logic means for holding sequential values of said binary representations, and e) means connected to said latch means for converting said binary representations to BCD representations, said converting means comprising at least one erasable programmable read only memory (EPROM). device.
Claim 12
Dependent Claim
107 words
A mud logging system for receiving and displaying conditions measured during the drilling of a well comprising: a) a plurality of display means for receiving signals from sensors responsive to the values of the conditions, . each said display means including, b) A/D converters for producing binary representations of signals from said transducers, c) timing and logic means, d) latch means under control of said timing and logic means for holding sequential values of said binary representations, and e) means connected to said latch means for converting said binary representations to BCD representations, said converting means comprising at least one erasable programmable read only memory (EPROM). device.
Claim 13
Dependent Claim
33 words
The system of claim 10 including means for establishing upper and lower acceptable values for said conditions, and means for comparing the measured values of a condition with said upper and lower values.
Claim 14
Dependent Claim
26 words
The system of claim 11 including audible and visual alarms responsive to said comparators for signalling when said condition ranges outside said upper or lower limits.
Claim 15
Dependent Claim
26 words
The system of claim 12 wherein said visual alarm, after excitation, is terminated when the value of said condition falls within said upper and lower values.
Claim 16
Dependent Claim
24 words
The system of claim 12 wherein said visual alarm, after excitation is terminated upon establishing new values for said upper or lower limits, .
Claim 17
Dependent Claim
24 words
The system of claim 11 in which said A/D converter, latch means, EPROM and comparators are under control of said timing and logic means.
Claim 18
Dependent Claim
71 words
. The system of claim 11 including: a) a slave computer of the digital type, b) means interfacing said A/D converters and said slave computer, c) a file disc, d) means under control of said slave computer for periodically transferring said binary representations from computer memory to said file disc, and e) a recorder under control of said slave computer for continuously displaying analog representations of selected ones of said conditions.
Claim 19
Dependent Claim
18 words
The system of claim 16 in which each said display means is operable independently of said slave computer.
References Cited (Backward Citations)
No citation records indexed.
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