Indonesia Conference Directory

Corresponding Author
Rani Kurnia

Institutions
1 Petroleum Engineering Study Program, Institut Teknologi Bandung, Jalan Ganesha No. 10, Bandung
2 Chemistry Study Program, Institut Teknologi Bandung, Jalan Ganesha No. 10, Bandung

a)Corresponding author: ranikurnia[at]gmail.com
b)tmarhaendrajana[at]tm.itb.ac.id, c)deana.wahyuningrum[at]gmail.com, d)abdassah[at]tm.itb.ac.id,e)zetanurmuhammady[at]gmail.com,f)puspaserunina[at]gmail.com

Abstract
Sulfonated Alkyl Ester (SAE) surfactant is an amphoteric surfactant that has sulfonated groups and ester groups as its hydrophilic groups. This surfactant is expected to reduce the interfacial tension between waxy oil and brine for its application in surfactant injection to improve waxy oil recovery. In this study, the mixture of SAE and a nonionic surfactant Fatty Ester Oxide (FEO) with certain ratio, hereinafter referred to as SAE-01B, showed a better performance than SAE and FEO surfactants in term of lowering interfacial tension between waxy oil and water, resistance to salinity, and microemulsion formation. This study shows that SAE-01B able to provide good performance for its applications in surfactant injection to improve waxy oil recovery.

Keywords
EOR, Surfactant, Sulfonated Alkyl Ester

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/dMAzrKQnGvtF

Corresponding Author
Ratna Widyaningsih

Institutions
a) Petroleum Engineering, UPN "Veteran" Yogyakarta, Jalan SWK 104 Lingkar Utara, Yogyakarta 555283
*ratna.widiyaningsih[at]upnyk.ac.id

Abstract
KA oil field is located in Sumatera Basin. It has been produced oil since 1937 until now. Because of its long production time, KA field can be called by Mature field. From the beginning production period (1937-1995), the KA field produced about 19.97MMSTB with the recovery is about 35%. Oil production was continued by applying water injection in 1995 until now. Based on PBLB Field case (Yosaphat et al, 2017), almost oil resources which was estimated by volumetric method can be produced throughout the drainage of production well covers whole reservoir. KA field has a long production time which is proportionate to total drainage. The MBE method will be applied in this mature field case study to estimate the OOIP. This field case study is expected to prove that OOIP estimation by MBE method will approach the value of OOIP estimation by volumetric with longer production time. This study aim is analyzing the relationship between MBE-s straight line Havlena-Odeh method to total drainage area and production time in OOIP estimation. With the longer production time, The OOIP value from MBE method is estimated will approach the OOIP value by volumetric method.

Keywords
OOIP ; material balance ; well drainage ; mature field

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/RHw3adj7yB28

Corresponding Author
Yosaphat Sumantri

Institutions
UPN "veteran" Yogyakarta

Abstract
KA oil field is located in Sumatera Basin. It has been produced oil since 1937 until now. Because of its long production time, KA field can be called by Mature field. From the beginning production period (1937-1995), the KA field produced about 19.97MMSTB with the recovery is about 35%. Oil production was continued by applying water injection in 1995 until now. Based on PBLB Field case (Yosaphat et al, 2017), almost oil resources which was estimated by volumetric method can be produced throughout the drainage of production well covers whole reservoir. KA field has a long production time which is proportionate to total drainage. The MBE method will be applied in this mature field case study to estimate the OOIP. This field case study is expected to prove that OOIP estimation by MBE method will approach the value of OOIP estimation by volumetric with longer production time. This study aim is analyzing the relationship between MBE-s straight line Havlena-Odeh method to total drainage area and production time in OOIP estimation. With the longer production time, The OOIP value from MBE method is estimated will approach the OOIP value by volumetric method.

Keywords
Material Balance, Havlena-Odeh, Mature Fields

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/FcCtyBZbVjmh

Corresponding Author
Imam Setiaji Ronoatmojo

Institutions
1Faculty of Earth Technology and Energy, Trisakti University
Jl. Kyai Tapa No.1, Jakarta, Indonesia
2PT. Pertamina EP, Menara Standard Chartered No 164, Lt 16, Jl. Prof. DR. Satrio, Jakarta 12950, Indonesia
email address: aji.rono[at]trisakti.ac.id

Abstract
The tectonic mechanism is a mechanism that involves tectonic conditions in the area which affects the dynamics of poroelasticity. Elastic modulus in the porous medium will go through change along with fluid dynamics. The loading factor role in the tectonic mechanism is followed by the tectonic forces. The aim of this study is to learn the impact of a tectonic mechanism on the coupling ratio during production and water injection. The objective zone of this study is a part of the thrust fault regime, which is changed to be the strike-slip fault regime. The sand reservoir of Z-600 is in the transition condition so that the dominance of S_V and S_hmin has a strong influence on a coupling ratio change. The fluid dynamics occurring during this period are water injection and oil production. Observations were made on mechanical properties and pore pressure changes. The coupling ratio estimation starting from 1994 until 2017 refers to a historical production matching to demonstrate rock strength responses in the variation of existing tectonic regime positions. Mohr diagram analysis was done, based on the Coulomb failure criterion. It demonstrates that pore pressure change is not always equal to the change of stress difference or deviatoric stress change, due to the nature of irreversible porosity change during fluid dynamics. The horizontal stress might cause shear tensile failure, it initiates a sanding problem potential.

Keywords
tectonic mechanism, coupling ratio, rock strength, shear-tensile failure, sanding problem

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/m7XJzFp82kZt

Corresponding Author
Andry Prima

Institutions
UNIVERSITAS TRISAKTI

Abstract
Over the past several five (5) years, a series of refinery unplanned shutdowns was highlighted as headlines in many Indonesian chronicles. The unplanned shutdowns apparently and obviously led to divers array of questions. One of the questions is whether or not the latest and most advance technology is applied that might cause a temporary disruption of oil supply. Furthermore, other questions the human resources. Are they readily adaptable to the fast-paced changing industrial environment? Is the performance of the past contribute to the discovery of overlooked information. Last but not least, the expectation for the management to fully execute a sound strategic business plan. This particular study is approached by using the qualitative non-linear multivariable regression in order to incorporate a number of different categorical variables. In addition, each variable will be analyzed as for the significant contribution to the unplanned shutdown. The result projected to answer the recurring unplanned shut downs; the using a non-linear multivariable regression that incorporates multivariable should be able to explain the undisclosed conditions. In a nutshell , recommendation for improvement is definitely needed. The past performance should be viewed as a lesson learnt for predicting the future operational success.

Keywords
catergorical variable, multi Variable, unplanned shutdown, refinery turnaround, qualitative approach,non-linear multi variable regression, refinery management

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/gDL2rNH6PeKC

Corresponding Author
Jeffier Winarta

Institutions
(a) Trisakti University
(b) SKK Migas

Abstract
Lifting activities are the most end activities of the upstream industry, needed a good evaluation for doing those. There is 2 methods in terms of measuring volume; static measurements and dynamic measurements. Static measurement is a measurement of the tank gauging, which is the measurement of the height of oil or liquid in the tank (storage tank or receiver tank), the liquid that will measure in static condition, no changing physics form (temperature or volume) in a long period of time (approximately more than an hour). Dynamic measurement is a measurement of a metering system, which means to do measuring the flowrate (transformation of volume against time) of crude product. the liquid condition with relatively constant speed and pressure, while lifting on loading. commonly, dynamic measurements used flow meters, there are several types of flow meters; positive displacement, turbine, coriolis mass, ultrasonic and orifice. On this occasion, will discuss the two varieties of measurements that is mentioned above, and the differences results among the two method. This paper takes the case in one of the oldest terminals in Indonesia in the Sumatra region of Riau province. During this lifting activity, the difference in values always works in the range of 0 - 0.5%. Not always coming smooth, sometimes there are some lifting activities that have a considerable value difference in both methods more than 0.5%. for additional information, terminal use the flowmeter (Positive Displacement) with automatic and manual mode to generate the results It is expected from this paper, to be able to share experiences in the field in order to guarantee the accuracy of each type of measurement. Not just explain the success, but the failure will show up.

Keywords
Static Measurement, Dynamic Measurement, Positive Displacement, Discrepancy

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/eJV3GCaMYu6H

Corresponding Author
Suryo Prakoso

Institutions
a) Petroleum Engineering, Faculty of Earth and Energy Technology, Universitas Trisakti
b) Geological Engineering, Faculty of Earth and Energy Technology, Universitas Trisakti

Abstract
Several studies show that P-wave velocity are greatly affected by pore geometry and pore structure. Pore geometry and pore structure here are functions of pore attributes. Petrophysical properties of rocks such as porosity are the result of the sedimentation and diagenesis process so that porosity is strongly influence by pore geometry and pore structure. Thus the P-wave velocity should be predicted well by using porosity. This study was intended to apply the concept of critical porosity for P-wave velocity estimation. The data used in this study included porosity from log analysis and DT log data obtained from the Talang Akar formation for validation. By using this method, the P-wave velocity can be accurately predicted.

Keywords
Pore Geometry, Critical Porosity, Pore Structure, P-wave Velocity

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/9y2K8f7hG6Rk

Corresponding Author
Padlil Iswahyu

Institutions
Geothermal Engineering, faculty of Petroleum UPN Veteran Yogyakarta

Abstract
Water balance between production and injection in a geothermal water dominated reservoir is very important to maintain the sustainability of steam power plant production. So that in order to plan the amount of steam produced, a natural injection calculation must be done first. This natural substance is water that is infiltrated into a reservoir that comes from rainwater inside the reservoir of the PLTP. The method of knowing natural injection is by analyzing the availability of water in the PLTP watershed, the area of the river flowing into reservoir is 30 km2, with annual rainfall around 2400 mm. One of the calculation methods used is the FJ.Mock method. This method transforms rainfall into run-off based on the concept of a hydrological model. Water availability is calculated in daily, monthly and annual rainfall. From the calculation results, the monthly average infiltrations are obtained about 154 kg/s and the annual total is about 1859 kg/s, from the results of this calculation, the total annually mass production must not exceed 1859 kg/s, if mass production exceeds infiltration, injection must be done through injection wells.

Keywords
Water balance: natural injection, FJ Mock, Sustainable

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/97pETQgdJUMH

Corresponding Author
Sudarmoyo Sudarmoyo

Institutions
UPN Veteran Yogyakarta

Abstract
The studied field is a field with the characteristics of light oil reservoir. To increase the oil recovery will be applied surfactant injection in this field. In this study the type of surfactant that will be used is Sodium Lignosulfonate (SLS) surfactant using formulations. The surfactant formulations conducted by adding Sodium Oleate and Ethylene Glycol Butyl Ether (EGBE) in variation concentration. The research conducted is a laboratory study with core flooding test and wettability test using Berea sandstone with variation of SLS surfactant concentrations. The core flooding test results will provide the largest recovery factor from SLS surfactant formulations with various concentrations. The same thing will be done on wettability test. It will be observed changes in the reservoir fluid contact angle at various formulated SLS surfactant concentrations. This study aims to determine the change in wettability of rocks that occur after the injection of SLS surfactant before and after the formulation. Furthermore, formulations and concentrations of surfactants can be selected which produce the greatest recovery to be applied to the field.

Keywords
Core flooding, Surfactant SLS, Wettability Alteration

Topic
Petroleum and Geothermal Engineering

Link: https://ifory.id/abstract/28LzRmDVdNqM