Collaborative telemetry

Patent metadata

Field	Value
Publication number	US-10349151-B2
Application number	US-201715667393-A
Country	US
Kind code	B2
Filing date	Aug 2, 2017
Priority date	Jan 30, 2015
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A method may include providing one or more telemetry transmission systems, the one or more transmission systems comprising one or more receivers and one or more transmitters. The method may also include transmitting a first synchronization sequence from the one or more telemetry transmission systems, the first synchronization sequence transmitted in a first channel, and the first synchronization sequence being at least a portion of a first telemetry signal. In addition, the method may include transmitting a second synchronization sequence the one or more telemetry transmission systems, the second synchronization sequence transmitted in a second channel, and the second synchronization sequence being at least a portion of a second telemetry signal. The first and second synchronization sequences may be transmitted simultaneously or at a predetermined time difference. The method may include receiving the first synchronization sequence at the one or more receivers, and receiving the second synchronization sequence at the one or more receivers.

First claim

The invention claimed is:

1. A bottom hole assembly (BHA) comprising:
one or more sensors; and
a telemetry sub, the telemetry sub incorporated into a rotary steerable system, the telemetry sub comprising:
a mud pulser (MP), the mud pulser including a mud pulser valve;
an electromagnetic (EM) gap pack;
an EM/MP transmitter control and data collector, the EM/MP transmitter control and data collector including a single common clock adapted to control the timing of both EM telemetry and MP telemetry, the EM/MP transmitter control and data collector comprising electronics adapted to:
control when EM telemetry and MP telemetry is sent from the telemetry sub; and
collect data from one or more sensors.

2. The BHA of claim 1 , wherein the telemetry sub further comprises a directional module, wherein the directional module includes magnetometers, accelerometers, or a combination thereof.

3. The BHA of claim 1 , wherein the telemetry sub further comprises a formation sensor package.

4. The BHA of claim 3 , wherein the formation sensor package comprises a gamma module.

5. A bottom hole assembly (BHA) comprising:
one or more sensors; and
a telemetry sub, the telemetry sub comprising:
a mud pulser (MP), the mud pulser including a mud pulser valve;
an electromagnetic (EM) gap pack;
an EM/MP transmitter control and data collector, the EM/MP transmitter control and data collector including a single common clock adapted to control the timing of both EM telemetry and MP telemetry, the EM/MP transmitter control and data collector including one or more magnetometers and one or more accelerometers adapted to determine a direction from magnetic north and an inclination from vertical, the EM/MP transmitter control and data collector comprising electronics adapted to:
control when EM telemetry and MP telemetry is sent from the telemetry sub; and
collect data from one or more sensors.

6. The BHA of claim 5 , wherein the telemetry sub further comprises a directional module, wherein the directional module includes magnetometers, accelerometers, or a combination thereof.

7. The BHA of claim 5 , wherein the telemetry sub further comprises a formation sensor package.

8. The BHA of claim 7 , wherein the formation sensor package comprises a gamma module.

9. A bottom hole assembly (BHA) comprising:
one or more sensors; and
a telemetry sub, the telemetry sub comprising:
a mud pulser (MP), the mud pulser including a mud pulser valve;
an electromagnetic (EM) gap pack;
an EM/MP transmitter control and data collector, the EM/MP transmitter control and data collector including a first clock adapted to control the timing of EM telemetry and a second clock adapted to control the timing of MP telemetry, the first and second clocks being time coordinated by using a Precision Time Protocol (PTP) clock synchronization protocol, the EM/MP transmitter control and data collector comprising electronics adapted to:
control when EM telemetry and MP telemetry is sent from the telemetry sub; and
collect data from one or more sensors.

10. A bottom hole assembly (BHA) comprising:
one or more sensors; and
a telemetry sub, the telemetry sub comprising:
a mud pulser (MP), the mud pulser including a mud pulser valve;
an electromagnetic (EM) gap pack;
an EM/MP transmitter control and data collector, the EM/MP transmitter control and data collector including a first clock adapted to control the timing of EM telemetry and a second clock adapted to control the timing of MP telemetry, wherein a drift between the first clock and the second clock is tracked using a Kalman filter, the EM/MP transmitter control and data collector comprising electronics adapted to:
control when EM telemetry and MP telemetry is sent from the telemetry sub; and
collect data from one or more sensors.

Assignees

• Scient Drilling Int Inc

Inventors

• White Matthew
• Whitacre Timothy
• Gleason Brian
• Youssef Mohamed

Classifications

• E21B47/18

  through the well fluid {, e.g. mud pressure pulse telemetry} · CPC title

• H04L7/0041

  Delay of data signal · CPC title

• H04L7/041

  using special codes as synchronising signal · CPC title

• H04Q9/00 Primary

  Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom · CPC title

• H04B13/02

  Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy · CPC title