9345765610

9345765610



Statoil

Snehvit C02 Tubaen Fm. storage capacity and injection strategy study

Doc. No.

Valid from

Rev. no. 1.0



Figurę 37: Observed tophole and downhole pressures during the first two years of injection. Bottomhole measurement (light blue) are plotted againstthe right axis. The difference is shown as a dark biue linę.

17 4 08    16 7 08    15.10 08    14 1.09    14 4 09    14 7.09    1310 09    11.1 10    124 10

Time

Figurę 38: Downhole temperaturę measurements.

Shut-in pressures are further discussed in Chapter 4. as are fall-off curves observed during longer shut-ins. During the autumn of 2008, the pressure readings inereased rapidly, to nearly 300 bar at the downhole gauge. This is further described in Chapter 4.1; it was identified as a near-well injectivity problem, and solved with MEC washes.

Classification: Intemal Status: Draft Expiry datę: 2012-12-31 Page 46 of 1 32



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