Global Patent Index - EP 1260672 A2

EP 1260672 A2 2002-11-27 - Downhole production string assembly

Title (en)

Downhole production string assembly

Title (de)

Bohrlochproduktionsstrang

Title (fr)

Ensemble de tubage de production

Publication

EP 1260672 A2 (EN)

Application

EP 02019083 A

Priority

  • EP 98907440 A
  • US 3817697 P

Abstract (en)

The present invention relates to a system which prevents coning while minimising the problems associated with any reverse coning which may result. The system includes a production string disposed within a wellbore having both oil production perforations and water production perforations. The produced water is separated into oil and water, whereafter the water is reinjected into a disposal zone. The separated oil is directed upward through the production string for recovery. Coning may be further prevented by monitoring the oil/water contact and by adjusting the rates at which the two zones are produced. <IMAGE>

IPC 1-7 (main, further and additional classification)

E21B 43/12; E21B 43/32; E21B 43/38

IPC 8 full level (invention and additional information)

E21B 43/12 (2006.01); E21B 43/32 (2006.01); E21B 43/38 (2006.01)

CPC (invention and additional information)

E21B 43/32 (2013.01); E21B 43/12 (2013.01); E21B 43/121 (2013.01); E21B 43/128 (2013.01); E21B 43/385 (2013.01)

Designated contracting state (EPC)

FR GB

EPO simple patent family

EP 1260672 A2 20021127

INPADOC legal status


2003-08-13 [18W] APPLICATION WITHDRAWN

- Effective date: 20030616

2002-11-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020828

2002-11-27 [AC] DIVISIONAL APPLICATION (ART. 76) OF:

- Document: EP 963505

2002-11-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): FR GB