Production planning and control in a manufacturing company involves all production activities from raw material requirements to finished products. The Jakarta Automotive Components Industry is engaged in manufacturing which produces leaf spring products that are sent to several regular customers, namely the Automotive Assembly Industry. Leaf spring Hino OW 190/200 is the type of spring ordered and shipped to PT. HMMI. Based on data for the January-December 2019 period, the demand for Hino OW 190/200 leaf spring has fluctuated quite significantly. The purpose of this study was to plan and control the production process of Leaf Spring Hino OW 190/200. Forecasting for the next 12 periods is based on demand plots from the previous 12 periods, calculating the Aggregate production plan, determining the Master Production Schedule (MPS), calculating raw material requirements using the Hybrid and Lot for Lot methods. The results showed that to support the smooth production, it can be seen that the production planning for forecasting calculations using the Linear Regression method generates a model Y=319,575+3,723X. Calculation of the need for main raw materials and components in 2020 uses the Hybrid and Lot for Lot method, which is 256,182.88 kg, much smaller than the company's calculations based on 2019 data, namely 259,827.40 kg.

The Beverage Packaging Industry is a company that produce ready-to-drink drinks that produces Box Bottle Tea (BBT) 250 slim products. This product is sent to several customers and distributors throughout Indonesia. During 2020 the demand for this product has increased. In addition, the increasing demand also fluctuated significantly so the company was unable to predict production schedule. The continuity of the production process to meet consumer demand requires good production planning. The purpose of this research is to plan and control the production process of BBT 250 slim to obtain optimal raw material requirements. This study uses the method of Linear Regression and Aggregate Planning. Based on the analysis with Linear Regression, this study resulted in a model Y=319.575+3.723X, meaning that if demand decreases, the amount of production also decreases. This model is very useful for the Beverage Packaging Industry in planning and controlling raw materials for production. Calculation of raw material requirements for BBT 250 slim products results in an efficiency of raw materials than usual forecasting.

In a mature oil field that has been producing for over 30 years, declining reservoir pressure and increasing water-cut are the two major factors that are affecting oil production rates. It is a common understanding that without any effort, this decline in oil production will remain until the end of the field's economic life. One of the approach to address this issue is through production enhancement work which has been proven successful in an oilfield offshore of Sarawak not only at arresting the overall field decline, but also increasing the overall oil production. The practice for Production Enhancement (PE) work in this field mainly involves (i) shutting off the existing watered-out intervals, (ii) adding perforations to the existing sand and/or a different reservoir, (iii) zone change and gas lift valve change activities, (iv) re-activation of idle wells, (v) gas lift optimisation and well bean-up, (vi) reservoir management planning and (vii) restoring well integrity. Due to the limited deck space on the platform and the unavailability of living quarters, the application of a work barge was essential for this type of PE work to house the necessary equipment and chemical for the enhancement job as well as acting as an accommodation vessel for the personnel. Concurrent well intervention operations on two different platforms was the selected option for time and cost optimisation and quicker first oil. For the same reasons, 24 hours operation was implemented whenever circumstances permitted. Further cost optimisation was implemented in subsequent campaign by utilizing slickline only as means of well intervention as well as withdrawing the option to have a dedicated work barge on site to support the campaign. After the successful PE Campaign in four (4) consecutive years, this initiative has resulted in over 3500 bopd of incremental oil. The overall technical potential (TP) of the field also increased by more than 100 percent. This has effectively arrested the previously estimated 25 percent field decline before the campaigns and increased in the overall field production. This paper seeks to present the challenges, the plans and operational execution of the well intervention activities. The results of the successful PE campaign, implementation of best practices, lessons learnt and improvement plan will also be shared.

Field XX is a mature field located in offshore Sarawak with relatively low RF due to reservoir complexity and compartmentalization. Previous development campaigns focused on specific compartments, while future development plans are targeting less developed compartments to increase the field-wide recovery. This paper is intended to discuss the methods and the success story of production optimization and recovery maximization effort from developed reservoirs: Classical Method: Data and analysis integration allows identification of unswept oil and behind casing opportunities (BCO). The approach begins with incorporating reservoir maps and correlations with current fluid contacts (from reservoir performance and logging data), pressure trending, production bubble maps etc. Identified opportunities are further evaluated using MBAL and Prosper models to de-risk the potential.Dumpflooding: From wellbore utilization review and reservoir performance analysis, in situ dumpflood candidates can be identified. In Field XX, most wells are completed in multiple sand sequences, which open up the opportunity to utilize water-producing reservoir to naturally flood the depleted reservoir via pressure difference in shut-in conditions.Drainage Optimization: Over the production life, numerous development wells were drilled and completed targeting specific reservoirs. After decades of production, adjacent wells started to feel the interference of the other, creating a sub-optimal production condition. Via gross rate vs. top node parameter analysis, well drainage optimization opportunity can be achieved by shutting less productive well to allow the better to continue producing at a higher potential. Using analytical reservoir engineering, Field XX managed to achieve the following: (A) identified 2 unswept/attic oil BCO to increase RF in respective reservoir by 2-4%; (B) implemented drainage optimization to increase the technical potential by 40% and delay water table progression by shutting in the downdip neighbouring well; and (C) identified a dumpflood candidate to provide pressure support prior to a more comprehensive water injection project in the future.

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