US 9,810,058 B2
Petroleum well downhole logging tool with high speed data bus
Dag-Håkon Frantzen, Loddefjord (NO); and Tarjei Rommetveit, Bergen (NO)
Assigned to BERGEN TECHNOLOGY CENTER AS, Laksevåg (NO)
Appl. No. 15/26,868
Filed by BERGEN TECHNOLOGY CENTER AS, Laksevåg (NO)
PCT Filed Oct. 2, 2013, PCT No. PCT/NO2013/000047
§ 371(c)(1), (2) Date Apr. 1, 2016,
PCT Pub. No. WO2015/050456, PCT Pub. Date Apr. 9, 2015.
Prior Publication US 2016/0237813 A1, Aug. 18, 2016
Int. Cl. G01V 3/00 (2006.01); E21B 47/12 (2012.01); G01V 11/00 (2006.01)
CPC E21B 47/124 (2013.01) [E21B 47/12 (2013.01); G01V 11/002 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A petroleum well downhole logging toolstring (0) comprising:
a wireline telemetry controller unit (6) comprising:
a downhole modem (61) with a first bitrate (r1) of 250 kBps or more arranged at least for transmitting data uplink on a wireline (8) to a surface telemetry unit (106) with a surface read-out unit (SRO) with a memory (123);
a server toolbus controller (62) connected between said downhole modem (61);
an internal toolstring databus (7) operating at a second bitrate (r2) between 500 kB/s and 2 MB/s being higher than or equal to said first bitrate (r1);
one or more logging tools (4), each with corresponding sensors (40) producing first data volumes, and with a client toolbus controller (42) connected on said databus (7), for being polled by said server toolbus controller (62) for transmitting said first volume sensor data (41a, 41b, 41c, . . . );
one or more memory tool units (2), different from the one or more logging tools (4), each said memory tool unit connected to said databus (7) via a memory tool client toolbus controller (42m) for communicating with said server toolbus controller (62), and with a memory section (21) with high IO speed of 72 MB/s and capacity of 16 GB or more, and an internal local high speed data bus (3) with a third bitrate (r3) of 100 MB/s, higher than said second bitrate (r2);
a high data volume producing logging tool (1), different from the one or more logging tools (4) and the one or more memory tool units (2), comprising a multi-sensor ultrasound unit (14), with one or more sensors (1s) providing high-volume data (11) at up to said third bitrate (r3) and higher than said second bitrate (r2) to the internal local high speed data bus (3) of the one or more memory tool units (2);
said memory tool (2) arranged for transmitting a part (11s) of said high-volume data (11) via said databus (7) online to said server toolbus controller (62) during logging; and
an uplink capacity indicator device (71) in said surface read-out unit (SRO) or toolbus server controller (62) arranged for negotiating transmission with said memory tool (2) for subsequently uploading more parts (11s) of said high-volume data (11) via said server toolbus controller (62) to said surface telemetry unit (106) and said surface read-out unit (SRO) if said uplink capacity indicator device (71) indicates available uplink capacity.