Apparatus for compiling and monitoring subterranean well-test data
First Claim
1. An apparatus for compiling and monitoring data during the testing of a subterranean well having a plurality of transducers for generating signals representing production characteristics of the well, including at least one transducer positioned at the surface of the well for generating a surface production characteristic signal representing at least one of wellhead pressure, wellhead temperature, gas temperature, oil temperature, gas differential pressure, static separator pressure, oil flow and water flow, comprising:
- means connected to the transducers for periodically storing values of the transducer signals;
means connected to said means for storing for reading said stored value of said one surface transducer signal to generate a value for an additional operating characteristic of the well;
means connected to said means for storing and said means for generating said additional operating characteristic value for generating a plurality of output signals representing said stored values and said additional operating characteristic value;
a power supply connected to power the transducers;
means connected to said power supply for generating a voltage level signal representing the magnitude of the power supply output voltage; and
means for comparing said voltage level signal with predetermined upper and lower voltage limits to generate a power fluctuation signal when said voltage level signal is outside said voltage limits.
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Abstract
An apparatus for monitoring the testing of a subterranean well by acquiring data from the well includes means for monitoring transducers positioned downhole, at the wellhead, at a separator or at other locations to obtain the values for a predetermined set of operating characteristics. The apparatus includes a microcomputer for calculating additional characteristics utilizing one or more of the transducer values and a visual display for onsite viewing of the values for the monitored and calculated characteristics. The apparatus further includes a printer and a tape recorder. The microcomputer controls the recording intervals of the printer and the tape recorder for recording the monitored and calculated values of the characteristics on a continuous basis. The values of the characteristics represent current production information for the well. The apparatus also includes means for monitoring the transducer power supply voltage and the microcomputer power supply voltage. If the microcomputer power supply fails, a backup battery is automatically connected to power a storage means for preserving the values of the operating characteristics for a predetermined time.
76 Citations
28 Claims
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1. An apparatus for compiling and monitoring data during the testing of a subterranean well having a plurality of transducers for generating signals representing production characteristics of the well, including at least one transducer positioned at the surface of the well for generating a surface production characteristic signal representing at least one of wellhead pressure, wellhead temperature, gas temperature, oil temperature, gas differential pressure, static separator pressure, oil flow and water flow, comprising:
- means connected to the transducers for periodically storing values of the transducer signals;
means connected to said means for storing for reading said stored value of said one surface transducer signal to generate a value for an additional operating characteristic of the well;
means connected to said means for storing and said means for generating said additional operating characteristic value for generating a plurality of output signals representing said stored values and said additional operating characteristic value;
a power supply connected to power the transducers;
means connected to said power supply for generating a voltage level signal representing the magnitude of the power supply output voltage; and
means for comparing said voltage level signal with predetermined upper and lower voltage limits to generate a power fluctuation signal when said voltage level signal is outside said voltage limits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- means connected to the transducers for periodically storing values of the transducer signals;
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11. An apparatus for compiling and monitoring data during testing of a subterranean well connected to a production test system having a plurality of transducers for generating signals representing operational characteristics of the well, including at least one transducer positioned at the surface of the well for generating a surface operational characteristic signal representing at least one of wellhead pressure, wellhead temperature, gas temperature, oil temperature, gas differential pressure, static separator pressure, oil flow and water flow, comprising:
- means for storing values of the transducer signals;
means for periodically reading the values of the transducer signals into said means for storing;
means for reading said stored value of said one surface transducer signal to generate a value for an additional operating characteristic of the well;
means for generating a plurality of output signals representing said stored values and said additional operating characteristic value;
means for interconnecting the transducers of the production test system, said means for storing, said means for reading, said means for generating said additional operating characteristic value, and said means for generating output signals for intercommunication;
a power supply connected to power the transducers, means connected to said power supply for generating a voltage level signal representing the magnitude of the power supply output voltage, and means for comparing said voltage level signal with predetermined upper and lower voltage limits to generate a power fluctuation signal when said voltage level signal is outside said voltage limits. - View Dependent Claims (12, 13, 14, 15, 16, 17)
- means for storing values of the transducer signals;
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18. An apparatus for compiling and monitoring data during the testing of a subterranean well connected to a production system having a plurality of transducers for generating signals representing operational characteristics of the well, including at least one transducer positioned at the surface of the well for generating a surface operational characteristic signal representing at least one of wellhead pressure, wellhead temperature, gas temperature, oil temperature, gas differential pressure, static separator pressure, oil flow and water flow, comprising:
- means for storing current values of the transducer signals;
means for periodically reading the current values of the transducer signals into said storage means to replace previously stored current values;
means for reading said stored current value of said one surface transducer signal from said means for storing to generate a value for an additional operating characteristic of the well;
means for generating a plurality of output signals representing said stored values and said additional operating characteristic value;
means for interconnecting the transducers of the production system, said means for storing, said means for periodically reading, said means for reading at least one of the stored current values, and said means for generating said output signals for intercommunication;
a power supply connected to power the transducers, means connected to said power supply for generating a voltage level signal representing the magnitude of the power supply output voltage, and means for comparing said voltage level signal with predetermined upper and lower voltage limits to generate a power fluctuation signal when said voltage level signal is outside said voltage limits. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
- means for storing current values of the transducer signals;
Specification