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ANALISIS PENANGGULANGAN MASALAH SHALE PADA TRAYEK 8 ½" MENGGUNAKAN KCL - POLYMER POLYAMINE PADA SUMUR MKLS Rivani, Mukhlis Farhan; Manik, Nijusiho; Amiruddin, Amiruddin; Paindan, Esterina Natalia
PETROGAS: Journal of Energy and Technology Vol 8, No 1 (2026): MARCH
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v8i1.209

Abstract

Shale formations in the 8 ½” section of MKLS Well in East Kalimantan present drilling challenges due to their reactive nature at high temperatures up to 250°F. The interaction between water-based mud and clay minerals can cause swelling, sloughing, and bit balling, which increase Non-Productive Time (NPT) and operational risks. This study aims to evaluate the effectiveness of a High Performance Water-Based Mud (HPWBM) system based on KCl–Polymer Polyamine in mitigating these risks. Testing included mud property evaluation, Linear Swelling Meter (LSM), Erosion Test, and Accretion Test using shale cuttings from MKLS Well. Results show a mud density of 1.36 g/cc, plastic viscosity of 15 cP, yield point of 25 lb/100 ft², filtrate loss of 4.8 mL/30 minutes, and pH of 9.40. Swelling of 3.5% (72 hours), erosion of 2.6%, and accretion of 1.45% indicate good inhibition, reducing wellbore instability, shale sloughing, tight hole, pack-off, and bit balling.
Analisis Pemilihan Model Decline Curve Analysis untuk Estimasi Penurunan Produksi pada Reservoir Shale Gas Fadhil, Muhammad; Rahman, Muhammad Rizqie Fathan; Rivani, Mukhlis Farhan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.57964

Abstract

Determining a production decline model is a critical step in analyzing the performance of Shale Gas reservoirs, which exhibit complex fluid flow characteristics. This study aims to identify the most appropriate Decline Curve Analysis (DCA) model and estimate the rate of production decline based on historical data. The data used including production rates, time, and cumulative production were obtained from Mazher Ibrahim and processed using Microsoft Excel. The methods employed include exponential, hyperbolic, and harmonic models using curve-fitting approaches and evaluation of the coefficient of determination (R²). The analysis results indicate that the hyperbolic model is the best fit, with a decline factor (b) of 0.6 and a decline rate (D) of 2%. These values indicate that the production decline is moderate and relatively stable.
Analisis Decline Curve Analysis (DCA) pada Reservoir Tight Gas Menggunakan Model Hyperbolic dengan Nilai b Mendekati Satu untuk Estimasi Cadangan Gas Rizky, Muhammad; Rahman, Muhammad Rizqie Fathan; Rivani, Mukhlis Farhan
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.57965

Abstract

Gas reserve estimation is a critical aspect of field development planning, particularly for Tight Gas reservoirs characterized by low permeability and complex production decline patterns. This study aims to analyze gas production rate decline using the Decline Curve Analysis (DCA) method based on secondary production data from Mazher Ibrahim, processed using Microsoft Excel. The methods used include Exponential, Hyperbolic, and Harmonic models with a curve-fitting approach to determine the parameters qi, D, and b. The analysis results show that the Hyperbolic model with a value of b = 0.99 provides the best fit with the highest R² value and is capable of representing a rapid production decline pattern at the beginning that flattens over time. Based on this model, an estimated recoverable reserves (EUR) of 2,065 MMSCF was obtained, with a predicted production life of approximately 23 years. The DCA method is recommended as a simple and effective approach for evaluating Tight Gas reservoirs.
Studi Laboratorium Penentuan Pour point dan Cold point Pada Crude oil Sumur AS-198, AS-211, AS-217, dan AS-219 Junaya, Indah Asa Ujun; Rivani, Mukhlis Farhan; Wahyuni, Viola Sri
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.57582

Abstract

Crude oil with a high wax content often causes flow problems, especially at low temperatures, which can cause the fluid to thicken to the point where it cannot flow. This condition has the potential to disrupt oil production and transportation processes in the field. Therefore, an analysis of fluid characteristics through pour point and cold point testing is required to determine safe operating temperature limits. This study was conducted using laboratory testing methods on crude oil samples from wells AS-198, AS-211, AS-217, and AS-219 in the Sangatta Field. The testing involved a gradual cooling process until the fluid lost its flowability. The test results indicate that each sample exhibits distinct characteristics, influenced by fluid composition and heavy hydrocarbon content. As wax content increases, the tendency for the pour point to rise also increases, thereby elevating the risk of flow disruption. Consequently, management methods such as heating or the use of chemicals are required to maintain flow stability during the production process.