# US 11,994,022 B2 · Electronic system for recovering the communication signal of the bottom sensor and tester of the communication module/mmi with the bottom sensor in oil wells operating with SCP

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- Number: US 11,994,022 B2
- Document ID: US11994022B2
- Status: Granted
- Kind: B2
- Application number: 17/900,989
- Filed: 2022-09-01
- Published: 2023-07-06
- Granted: 2024-05-28
- Earliest claimed: 2022-09-01
- Assignees: Petroleo Brasileiro S.A. - Petrobras
- Applicants: Petróleo Brasileiro S.A.—Petrobras; Universidade Federal Da Bahia—Ufba
- Inventors: Carlos Stenio Pereira Morais; Marcos Pellegrini Ribeiro; Antonio Cezar de Castro Lima; Leizer Schnitman; Marcio Fontana; Raimundo Jorge Abreu de Jesus; Ricardo André Oliveira dos Reis; Tiago de Oliveira Silva
- Web page: https://patentgrep.com/patent/US11994022B2

## CPC

- E21B 47/12: Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- F16B 7/182: {for coaxial connections of two rods or tubes}
- F16B 2/005: {Means to increase the friction-coefficient}
- H02M 3/335: using semiconductor devices only
- E21B 33/0385: {electrical connectors}
- F16B 2200/506: bolted or riveted
- E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)

## Abstract

An electronic system is capable of assuming the role of master module before the proprietary module of the manufacturer of the SCP system, in the absence of a response to the first request from the supervisory system, or when the proposed module detects that the original module is inappropriately carrying out the PCM signal decoding. The system is further capable of monitoring new variables available at the bottomhole, regardless of the limited set of variables provided by the original module of the SCP system.

## Claims

### Claim 1

An electronic system for recovering a communication signal of a bottom sensor and testing a communication module (MMI) with the bottom sensor in oil wells operating with submerged centrifugal pumping (SCP), wherein the system comprises 3 electronic boards:
a power board,
a signal acquisition board, and
a signal processing board,
wherein the signal acquisition board is configured to acquire a signal from the bottom sensor, wherein a voltage variation in a resistor of the signal acquisition board is treated through an active filter and amplifiers with gain adjustment.

### Claim 2 (depends on 1)

The system according to claim 1, wherein the power board is configured to power the bottom sensor.

### Claim 3 (depends on 1)

The system according to claim 1, wherein the power board supplies a voltage of 60 to 90 VDC, with a maximum current of approximately 67 mA.

### Claim 4 (depends on 1)

The system according to claim 1, wherein the power board supplies power to internal circuits of the signal acquisition board or the signal processing board, with voltages of ±10 VDC.

### Claim 5 (depends on 1)

The system according to claim 1, wherein the signal acquisition board comprises a microcontroller, an active analog filter, a gain control circuit, an offset, a relay, and a resistor.

### Claim 6 (depends on 1)

The system according to claim 1, wherein the signal processing board is configured to interpret a signal coming from the signal acquisition board and providing a user with values sent by the bottom sensor.

### Claim 7 (depends on 6)

The system according to claim 6, wherein bottom sensor values are provided by emulation of the bottom sensor, through an electronic load, through a touchscreen display or through a resident web page available via Wi-Fi.

### Claim 8 (depends on 6)

The system according to claim 6, wherein the signal processing board comprises a microcontroller, a touchscreen display, and a MOSFET transistor.

### Claim 9 (depends on 1)

The system of claim 1, wherein communication between the signal acquisition board and the processing board takes place through a serial port using UART protocol, with a rate of 14400 bps.

### Claim 10 (depends on 1)

The system of claim 1, wherein the system has a first operating mode acting as a bottom sensor communication signal regenerator and a second operating mode in the acting as a bottom sensor emulator.