EP 0977931 A4 20000628 - MULTIZONE PRODUCTION MONITORING SYSTEM
Title (en)
MULTIZONE PRODUCTION MONITORING SYSTEM
Title (de)
ÜBERWACHUNGSSYSTEM FÜR MEHRZONEN-PRODUKTION
Title (fr)
SYSTEME DE SURVEILLANCE DE PRODUCTION MULTIZONE
Publication
Application
Priority
- US 9808066 W 19980422
- US 4453897 P 19970423
Abstract (en)
[origin: WO9848145A1] In a multiple connected well, spaced apart production packers (26a-D) isolate independent zones (15-18) from one another. In each isolated production zone, a side pocket mandrel (30) with a full opening bore (40A) has lengthwise extending side by side pockets (40B, 40C, 40D) for receiving a static pressure measurement instrument or tool (90); for providing an elongated pressure differential flow passageway; and for receiving a differential pressure measuring tool (74). Fluid flow in the production zone is channelled through the flow passageway to the full opening bore (40A) and the fluid is communicated to the static pressure measuring tool (90) and to the differential pressure tool (74). The static pressure and differential pressure of the fluid flow from each production zone is independently measured at the time of production and sequentially and repetitively read out at the earth's surface. From the pressure measurements and flow equations, the production flow is determined.
IPC 1-7
IPC 8 full level
E21B 23/03 (2006.01); E21B 47/06 (2012.01); E21B 47/10 (2012.01)
CPC (source: EP US)
E21B 23/03 (2013.01 - EP US); E21B 47/06 (2013.01 - EP); E21B 47/10 (2013.01 - EP US)
Citation (search report)
No further relevant documents disclosed
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
WO 9848145 A1 19981029; CA 2286758 A1 19981029; EP 0977931 A1 20000209; EP 0977931 A4 20000628; EP 0977931 B1 20040818; NO 319986 B1 20051010; NO 995215 D0 19991025; NO 995215 L 19991118
DOCDB simple family (application)
US 9808066 W 19980422; CA 2286758 A 19980422; EP 98919833 A 19980422; NO 995215 A 19991025