Determination of bottomhole pressure by using multivariate statistical models (on example of formation TL-BB Yurchukskoie field)

Chernykh, Irina A.

doi:10.15593/2224-9923/2016.21.3

Cited by 2 publications

(1 citation statement)

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“…That is why, development of a quite different method of bottom-hole pressure definition is advisable. The work [10] proposes the method of bottom-hole pressure definition, based on building of multidimensional statistical models, the input parameters of which are the parameters, definition of which does not cause troubles during wells' operation. The abovementioned method has demonstrated high efficiency, and as the result, the conclusion was made on reasonability to develop analogous approaches for other fields of the region as well.…”

Section: Introductionmentioning

confidence: 99%

Development of method for determining bottom-hole pressure in production wells

Galkin

Ponomareva

Chernykh³

2017

Proceedings of the International Conference "Actual Issues of Mechanical Engineering" 2017 (AIME 2017)

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-The paper is devoted to the effectiveness increase of monitoring the value of seam pressure when operating oilproducing wells. This problem is relevant for well operation when using subsurface measuring systems. In such cases, seam pressure is determined by recalculation of the dynamic level value, measured at wellhead. The absence of the method of reliable characterization of a multiphase flow leads to substantial errors in the seam pressure, measured in that way. In the present paper, a principally different approach to determination of seam pressure is considered, which is based on the mathematical processing of the accumulated data on parallel wellhead and subsurface measurements. Oil-producing wells, exploiting Famenskaya deposit of Ozyorny field, were chosen as an object of the research. The data on 579 parallel wellhead and subsurface measurements were processed. The use of incremental regression analysis made it possible to develop multidimensional models for Famenskaya deposit, allowing one to determine the seam pressure value in the absence of possibility of its direct measurement. A principle advantage of the developed method is the use of only those parameters as initial data, the determination of which during well operation is not accompanied by difficulties. Comparison of seam pressures, measured and calculated by means of the obtained models, demonstrates high reliability of the developed method.

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Section: Introductionmentioning

confidence: 99%