Well and Inflow Performance Relationship for Heavy Oil Reservoir under Heating Treatment

Abstract

Well and Inflow Performance Relationship, termed TPR and IPR, respectively have been the unfailing methods to predict well performance. It is further to determine the schemes on optimising production. The main intention of the study is to explore TPR and IPR under heating treatment for heavy oil well. Klamono is a mature field which mostly has depleted wells, it produces heavy oil within 18.5 o API (>0.95 g/cc oil density), and therefore, artificial lifting method is necessary. Sucker Road Pump (SRP) and Electrical Submersible Pump (ESP) are the most deployed artificial lifting method in this reservoir. To boost the heavy oil production, the application of Electric Downhole Heater (EDH) in Well KLO-X1 is being studied. Whole Klamono's production is more than 100,000 blpd within 97-99% water cut. By installing EDH, oil viscosity is decreased hence oil mobility ratio will play a role to decrease water cut. EDH is installed together with the tubing joint to simplify its application in the wellbore. The study shows that EDH application can elevate fluid (mixed oil and brine) temperature. Oil viscosity confirms a reduction from 68 to 46 cP. The gross well production is up to 12.2 bopd due optimising its outflow performance and reducing 97.5 to 96.9% water cut. The field data gives an incremental of 4.9 bopd. The computational results only show an attainment of net oil production up to 8.3 bopd (2 bopd incremental). The EDH works to lessen both density and viscosity as we hypothesised for the mechanism of thermally induced oil production improvement. The evaluation study on its economics aspect exhibits good result that is 1.4 USD/bbl additional profit margin according to field data despite the challenging annual rig rent cost. Following the field data, the expected net income through analytical model revealed that this project is financially promising.

The Prospect of Electrical Enhanced Oil Recovery for Heavy Oil: A Review

“…NO-EDH installation field yields 6.1 million USD and the EDH installation field produces 9.7 million USD which, after subtracted by the rig rent, would be 6.3 million USD. Therefore, the additional 0.2 million USD of profit margin is economically viable (Hakiki et al, 2017). Utilization of renewable energy is a solution in the development of future energy, both from organic or inorganic waste to reduce gas emission as the government regulations for future energy (Afdhol, Abdurrahman, et al, 2019;Afdhol, Lubis, et al, 2019;Yuliusman et al, 2018).…”

Experimental Study of Polymer Injection on Oil Recovery Factor Enhancement Using Homogenous and Heterogenous Micromodel Porous Media

“…Viscoelasticity of a HPAM polymer could play an important role in reducing residual oil saturation, which is not reported in classic Capillary Desaturation Curve (CDC). The capillary number itself can be contributed from several factors such as increasing velocity, reducing Interfacial Tension (IFT) or alter wettability and increasing displacing fluid viscosity (Hakiki et al, 2017). In this case, the effect of polymer concentration on incremental oil recovery is observed.…”

Tight gas production model considering TPG as a function of pore pressure, permeability and water saturation

“…With considering TPG @ k = 0.095 × 10 -3 µm 2 Without considering TPG @ k = 0.095 × 10 -3 µm 2 With considering TPG @ k = 0.065 × 10 -3 µm 2 Without considering TPG @ k = 0.065 × 10 -3 µm 2 With considering TPG @ k = 0.035 × 10 -3 µm 2 Without considering TPG @ k = 0.035 × 10 -3 µm 2 casing selection, tubing design, etc., is carried out on the basis of OPR (Hakiki et al 2017). The skin factor is also a basic parameter that shows variation from predicted pressure drop due to skin.…”