FIELD EXPERIENCE WITH REAL TIME WATER-IN-OIL MONITORING |
|---|
| Claudio Barreiros da Costa e Silva, Jose Alberto Pinheiro da Silva Filho, Marcelo A. L. Gonçalves, Gualton Manhães, Hildebrando Pinho Filho, Josaphat Dias Da Mata, Ricardo Pessanha, Roberto Guedes |
- Abstract:
- Water-in-oil or BSW monitoring in produced oil streams on offshore platforms in Campos Basin, Brazil, consists of a daily basis procedure to calculate the total liquid production balance. The measurement of the water cut becomes more critical through time when there is a natural depletion with a consequent decrease in the reservoir production, normally followed by an increase in water production, which can mask the oil fiscal metering. It is fundamental to consider the instability of the oil flow from the reservoir caused by gas or water slug, in the production columns, which can cause problems with sampling representivity and results from laboratory analysis carried out within pre-set periods. In the case of Petrobras, each analysis run represents the average value of six samples collected at the field locations and eventually the process of sampling can be problematic because of the process variations. Oils analysis is performed using centrifuging, decanting and by means of differential pressure measurement and none of these processes can be used in a continuous on-line basis. In order to guarantee a better representivity in the oil and water metering, a real time metering process is necessary. This can eliminate the constraints of the non-continuous metering processes and make the automation of the manifolds and oil gathering stations possible as well as the reduction of the total measurement uncertainties, among other advantages.
This paper intends to present the field experience and major advances in the real time water-in-oil monitoring technology which impacts directly on the final performance of the fiscal measurement processes and reduction of operations costs derived from the optimization of chemical product injection and analysis procedures. - Download:
- IMEKO-TC9-2000-039.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2000
- Title:
- 10th Conference on Flow Measurement
- Place:
- Salvador, Bahia, BRAZIL
- Time:
- 04 June 2000 - 08 June 2000