Oleh: M. Syaifudin;Bambang Triwibowo

Abstraksi : One of the widely used hydrocarbon maturity parameter was vitrinite reflectance (Ro). The effectiveness of this technique had been proven good if it was used for coal sample. But, its effectiveness was relatively declining if it was used for determining source rock, especially if that source rock ...

Oleh: Sari Wulandari Hafsari;Siti Umiyatun Choiriyah

Abstraksi : The Ngimbang Carbonate was penetrated in the western portion of the Rayhan block. Ray-3 well retrieved 350 ft of continuous core, which provides the basic for an interpretation of the depositional environment. Based on the core description, the Ngimbang carbonate is composed mainly of mud-dominated ...

Oleh: Basuki Rahmad;Edyanto

Abstraksi : Lapisan-lapisn batubara di daerah Pinang-Sangata Kalimantan Timur jumlahnya kebih dari 15 lapisan antara lain lapisan Melawan, Prima, Bintang, Sangata, Middle, Pinang, Mandili, dll. Runtutan stratigrafi rinci dai daerah penelitian mulai dari bawah sampai atas adalah Unit Pra-Sangata, Unit ...

Oleh: Nanang Muchsin;Rudy Ryacudu;Tri Widyo Kunto;Sri Budiyani;Barlian Yulihanto;Bambang Wiyanto

Abstraksi : Regional structural analysis of the southern Central Java Region reveals that the Miocene structural configuration is formed by NW-SE structural trend of th Gabon and Karangbolong right lateral Fault System. Two main sedimentary depocentres are identified in this region, namely Western and Eastern ...

Oleh: Awang H. Satyana;Margaretha E.M. Purwaningsih

Abstraksi : A regional oil and gas gechemistry study was conducted recently based on geochemical data from around 100 wells and seeps of the East Java Basin. Geologic setting of the oil and gas occurrence were evaluated to derive their habitats. Most oils were derived from sub-oxic and oxic terrestrial to ...

Oleh: Hary Utoyo;Subiyanto

Abstraksi : Batubara yang terdapat di daerah Bukit Kendi dipengaruhi oleh tektonik kuat, menghasilkan antiklin berarah baratlaut-tenggara dan tersesarkan, dengan kemiringan sayap selatan lebih landau, dan lebih curam di sayap utara, serta menunjam kea rah tenggara. Batubara ini diapit oleh dua batuan terobosan ...

Oleh: Haposan Napitupulu;Imam B. Sosrowidjojo

Abstraksi : A comprehensive geochemical study was performed on the Barito Basin. Approaches of standard geochemical analyses, Fluorescence Alteration Multiple Macerals (FAMM) and computerize basin modeling have been used in this study. Source quality and quantity for the Warukin Formation span widely from ...

Oleh: Chieko Shimada

Abstraksi : Diatoms are unicellular, eucariotic micro-organism. Their sculptured cell wall of opal-A (SiO2.nH2O) is so highly diverse that it is diagnostic for specific identification (=taxonomy). As much as dozens of thousands species have been so far described as living or fossil taxa. Diatoms are ...

Oleh: Aji WIrawan Sudarwo;Musalam Latuconsina

Abstraksi : Rock Formation Permeability is one of the most important elements in the reservoir characterization and fluid management. For last decade, new techniques have been developed to invert the reservoir permeability profile estimation. One of the techniques is the array acoustic logging. Stoneley (tube) ...

Oleh: Jarot Setyowiyoto;Irwan Z. Wildan;Yan Sudarmo

Abstraksi : Well image data can be taken from some logging tools such as FMI, EMI or STAR. In order to interpret well image, Well # TBB-01 in the Tambun Field, operated by Pertamina, use the STAR Log which is logged by Atlas Baker. From well images we could make some interpretations about lithology, ...

Oleh: Sufriadin;Komang Anggyana;Arief Sudarsono

Abstraksi : The mineralogical characterization of three coal samples from Tondongkurah, South SUlawes have been carried out with using reflected light microscopic and X-ray diffraction techniques in order to identify and to determine of the minerals distribution. Kaolinite, a clay species is adominant ...

Oleh: Totok Sudibyo;Atmawan T.;Ronnie P.;Bernato V.

Abstraksi : China field is one of the largest oil fieldas in the South Business Unit of CNOOC's Southeast Sumatra PSC. The main reservoirs of China field are producing from the Talang Akar Formation into 2 members in the PSC based on different depositional settings, the deltaic Gita and more fluvial Zelda ...

Oleh: Nana Yoanita;Batara Simandjuntak

Abstraksi : It has been observed that a continuous, regional-scale transgression has been experienced in the Central Sumatera Basin during lower to middle Miocene era. Having such transgression on a river mouth will most likely yield land-ward stepping sand deposition, especially when sediment supply constant ...

Oleh: Raden Idris;Tasiyat;Nana Djumahana

Abstraksi : The Salawati basin Irian Jaya is a prolific Basin in Eatern Indonesia, which is producing oil and gas from the Miocene carbonate reservoir, mostly the kais reef limestone. However, the Matoa Field which is operated by the JOB Pertamina - PetroChina, has twotypes of the Miocene Kais carbonate ...

Oleh: A. Soehaimi;Djedi S. WIdarto;Masturyono;I. Effendi

Abstraksi : Western Lampung province, base on seismic source, mechanism and origin of the earthquake are controlled by 3 seismotectonic zones, there are the Western Sumatera Subduction, the Active Tectonic Sunda Strait and the Southern Suamtera Active Fault. The Southern Sumatera active fault at Semangko ...

Oleh: Awang H. Satyana;Margaretha E.M. Purwaningsih;Enrico C.P. Ngantung

Abstraksi : Major Sorong Fault, a WSW-ENE trending left-lateral wrench fault terminates the Salawati Basin to the north and northwest. The fault has strongly controlled the basin's structures since the mid-Pliocene and responsible for the present structural style of the basin. Four structural grains can be ...

Oleh: Yogi Noviadi;Kris Budiono

Abstraksi : The Ground Penetrating radar have been used to profilw the depth of subsurface liquifaction potential of Maumere Coastal zone. Analysis of a large data base of GPR profile from natural subsurface geological condition along the Maumere coast line have allowed identification of reflection ...

Oleh: B. Budiarjo;M. Husni Thamrin;Nugroho;Zaenal Abidin

Abstraksi : The Kamojang geothermal field has been commercially operated since 1982 and the present installed capacity 1140MWe. After 15 years of commercial operation, several problem rose up. The main problem is related to rapid well production decline and reservoir fluid drying out which are results from ...

Oleh: R. Budiharto

Abstraksi : The island Arc of Indonesia is distrupted in same places by deflections, such as, along the Sunda Strait, and between the islands of Sumba and Timor. The deflection between the Islands of Java and Sumatera was presented at the IAGI Scientific Meeting in 1975 (R. Budiharto, 1976), and it is ...

Oleh: Kamrullah M;Anastasia Dewi Titisari;Wahyu Sasongko

Abstraksi : Geostatistic isa statistical study of spacially distributed data which has spacially genetic relationship and characterized by distinctive nature. Enrichment of lateritic nickel could provide a distribution of data which genetically spacial related and having distinctive characteristic. The ...

Oleh: Maman Smantri

Abstraksi : Groundwater in granodiorite rocks (granitoid rocks) was difficult to find because it's characteristic were hard and compact. This situation was found in Tanjungbintang industrial area in Tanjungbintang district, South Lampung Regent. This industrial area was lied above Sulan Granodiorite intrusion ...

Oleh: Afiat Anugrahadi;Arie Murwanto;Nani Hendiarti

Abstraksi : East Kalimantan is a rich district with the wide variety of natural resources, which are depending on several environment conditions for growth. Environtment variables such as water turbidity and chlorophyll concentration derived from ocean color images can be used to observe the coastal ecosystem. ...

Oleh: Kris Budiono

Abstraksi : There is obviously wide variety of types and causes of sea floor instability and the term "landsliding" is applied very broadly to describe many of these phenomena. Different sea floor materials, different environments, and different forms of loading all influence the kinds of landsliding that can ...

Oleh: Vijaya Isnaniawardhani;Emmy Suparka;Rubiyanto Kapid;Hamzah Latief

Abstraksi : The assemblages of calcareous nannoplankton and foraminifera have been studied in thirty-four surface sedimen sample sfrom Madura Waters. Twenty-two nannoplankton and no less than thirty-four benthic foraminifera and thirteen plankton foraminifera taxas can be identified. In the study area ...

Oleh: Jamal Alaydrus;Zuki Harahap;Tjetjep Rustandi

Abstraksi : The use of Geographic Information Systems (GIS) opens the opportunity for business and organization, particularly oil/gas & energy industries, to explore their data and metadata in the form of spatial information. GIS and its associated tools developed as a user-friendly interface to the spatial ...