Deconvolution of wellbore pressure and flow rate

Journal Article · Thu Mar 01 00:00:00 EST 1990 · SPE Formation Evaluation (Society of Petroleum Engineers); (USA)

DOI:https://doi.org/10.2118/13960-PA· OSTI ID:6934782

Kuchuk, F J ^[1]; Carter, R G ^[2]; Ayestaran, L ^[3]

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1. Schlumberger-Doll Research Center, Ridgefield, CT (USA)
2. National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
3. Schlumberger Technical Services, Dubai (AE)

Determination of the influence function of a well/reservoir system from the deconvolution of wellbore flow rate and pressure is presented. Deconvolution is fundamental and is particularly applicable to system identification. A variety of different deconvolution algorithms are presented. The simplest algorithm is a direct method that works well for data without measurement noise but that fails in the presence of even small amounts of noise. The authors show, however, that a modified algorithm that imposes constraints on the solution set works well, even with significant measurement errors.

• OSTI ID: 6934782
• Journal Information: SPE Formation Evaluation (Society of Petroleum Engineers); (USA), Vol. 5:1; ISSN 0885-923X
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
OIL WELLS
FLOW RATE
ALGORITHMS
CALCULATION METHODS
RESERVOIR PRESSURE
RESERVOIR ROCK
MATHEMATICAL LOGIC
WELLS
020200* - Petroleum- Reserves
Geology
& Exploration
990200 - Mathematics & Computers