Wijoyo Niti Daton
In this study, there is an X-well in Y field, where it is an old well planned for reactivation by steam injection using the huff and puff method, one of the possible problems that will occur, there is a possibility of tubing failure due to the effect the load incurred during production and the effect of a significant temperature difference when injecting steam which can cause an additional burden on the tubing. Therefore, an evaluation will be conducted with the aim of ascertaining whether the X-well tubing is still strong or not for reactivation using steam flood in the huff and puff method. This paper will discuss these evaluations which include burst loads, collapse loads and tension loads and also the effect of temperature differences and corrosion that will be received by tubing. The X-well in the Y-field will be steam injected using the huff and puff method, but before doing so it is necessary to evaluate the strength of the tubing due to increased production and thermal effects which will put a load on the tubing. The tubing used in Well-X has a K-55 grade with OD size of 3-1/2" with 9.3 ppf for weight, the tubing was installed to a depth of 730 ft and was cemented with a 500 ft cement column height.
Penerapan Karya Tulis
The existence of old wells if managed properly has the opportunity to increase national oil production. Steam injection is a possible enhanced oil recovery (EOR) technique most widely applied to high viscosity of heavy oils based on temporary viscosity decrease (Castro, et.al, 2010) but to inject steam into old wells will be a challenge and must be done by considering many things, one of them is the strength of the tubing in an old well, it has been common practice in oil industry for many years to use low-strength casing (K55, N80, and L80) in steam injection wells, despite a higher casing failure rate than in conventional wells (Wu, Gonzales and Hosn, 2005).