Risk assessment of PCP lift system using a fishbone diagram and MICMAC method

J Osorio-Tovar,J.W Grimaldo-Guerrero

doi:10.1088/1757-899x/844/1/012013

Abstract

Hydrocarbons demand by industrialized and developed nations and the oil prices conditions last few years; many companies have turned again to fields that were not previously considered attractive to produce, to identify them as an alternative to meet that demand. This research shows the identification of a condition, which should be taken into account to produce a mature field by progressive cavity pumping (PCP) artificial lift system, an evaluation with the MICMAC method and the identification of the key variables to achieve the development in this practice. The results make possible to identify highest influence elements, which can guide intervention strategies and form the basis to formulate guidelines and policies for the PCP implementation. The results allow us to conclude that pressures and mechanical designs in field wells should be the guidelines for optimum production, the market rate improvement, and the reservoir productive life.

Highlights

The oil sector is a strategic asset due to its economic contributions [1]; for Colombia in 2018, this sector contributed 40% total exports [2]
This research shows the identification of a condition, which should be taken into account to produce a mature field by progressive cavity pumping (PCP) artificial lift system, an evaluation with the MICMAC method and the identification of the key variables to achieve the development in this practice
The methodology begins with the oil well production optimization scheme, it identifies failures in a well with PCP they are related through a fishbone diagram, to allow the variables selection which causes the failures

Summary

Introduction

The oil sector is a strategic asset due to its economic contributions [1]; for Colombia in 2018, this sector contributed 40% total exports [2]. There is a necessity to maintain an optimal and continuous production, to achieve a long productive life of the oil wells. The problems may occur in the electrical functioning and mechanical stresses in the production equipment [9], which may generate additional and indirect impacts on other components of the production system [28]. Failure management is effective when it begins prevention and ends with correction [10] these operations may involve high economic costs due to the equipment and maneuvers must be performed; identifying the occurrence frequency of failures allows the design of preventive maintenance plans which will have an impact on improving oil production and reducing incidents and accidents [12].

Published under licence by IOP Publishing Ltd

Sand production

Gas presence

Conclusions