Title:
OIL EXTRACTING SYSTEM, AND OIL EXTRACTION MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2008/050645
Kind Code:
A1
Abstract:
Provided are an oil extracting system, which is enabled to extract oil efficiently
by utilizing a pump-off signal in secondary and tertiary extractions, and an
oil extraction monitoring system. The oil extracting system comprises a sucker
rod pump (10) disposed in an oil well (2) for sucking crude oil, a signal detecting
unit (12) for detecting an pump-off signal of the sucker rod pump (10), and a press-in
pump (20) disposed in a press-in well (3) for pressing in a fluid to be used for the
secondary extraction or the tertiary extraction. The press-in pump (20) is run
on the basis of the pump-off signal detected by the signal detecting unit (12).
Inventors:
TSURUTA TATSUMI
KAWAMOTO KOJI
IMANAKA TAKAYUKI
KAWAMOTO KOJI
IMANAKA TAKAYUKI
Application Number:
PCT/JP2007/070224
Publication Date:
May 02, 2008
Filing Date:
October 17, 2007
Export Citation:
Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
TSURUTA TATSUMI
KAWAMOTO KOJI
IMANAKA TAKAYUKI
TSURUTA TATSUMI
KAWAMOTO KOJI
IMANAKA TAKAYUKI
International Classes:
E21B43/12
Domestic Patent References:
| WO2000066892A1 | 2000-11-09 |
Foreign References:
| JPH11236556A | 1999-08-31 | |||
| JPS5716088A | 1982-01-27 | |||
| JP3184229B2 | 2001-07-09 | |||
| JPH08158774A | 1996-06-18 | |||
| JPS63112592U | 1988-07-20 |
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