scholarly journals Analysis of the Petroleum System of Dima Oil Field by Using PetroMoD 1D

2021 ◽  
pp. 526-531
Author(s):  
Haider A. F. Al-Tarim
Keyword(s):  
Source Rock ◽  
Oil And Gas ◽  
Petroleum System ◽  
Oil Field ◽  
Reservoir Rock ◽  
Geological Time ◽  
Reservoir Rocks ◽  
Petroleum Systems ◽  
Geological Age ◽  
Stratigraphic Succession

The study of petroleum systems by using the PetroMoD 1D software is one of the most prominent ways to reduce risks in the exploration of oil and gas by ensuring the existence of hydrocarbons before drilling.      The petroleum system model was designed for Dima-1 well by inserting several parameters into the software, which included the stratigraphic succession of the formations penetrating the well, the depths of the upper parts of these formations, and the thickness of each formation. In addition, other related parameters were investigated, such as lithology, geological age, periods of sedimentation, periods of erosion or non-deposition, nature of units (source or reservoir rocks), total organic carbon (TOC), hydrogen index (HI) ratio of source rock units, temperature of both surface and formations as they are available, and well-bottom temperature.      Through analyzing the models by the evaluation of the source rock units, the petrophysical properties of reservoir rock units, and thermal gradation with the depth during the geological time, it became possible to clarify the elements and processes of the petroleum system of the field of Dima. It could be stated that Nahr Umr, Zubair, and Sulaiy formations represent the petroleum system elements of Dima-1 well.

The Petroleum System of Northern Kashi Sag in Tarim Basin and Exploration Direction

2012 ◽  
Vol 524-527 ◽  
pp. 89-95 ◽  
Author(s):  
Yu Zhao Hu ◽  
Pei Rong Zhao ◽  
Yu Hui Lv
Keyword(s):  
Source Rock ◽  
Tarim Basin ◽  
First Grade ◽  
Petroleum System ◽  
Reservoir Rock ◽  
Lower Permian ◽  
High Porosity ◽  
Oil Sand ◽  
Gas Reservoir ◽  
Petroleum Systems

Northern Kashi Sag is located on the northwestern periphery of Tarim Basin, China. This block has been explored for a half century, and Akmomu gas reservoir was discovered in 2001. In Northern Kashi Sag, organic-rich intervals mainly occur in Carboniferous, Lower Permian and Jurassic. Lower Cretaceous Kezilesu Formation(K1kz) is dominated by braid river succession and is best in big thickness of 385-862m，high porosity of 14.90% and high permeability of 207.00 ×10-3μm2. The first grade cap rocks are gypsolyte and mud-gypsolyte in upper Cretaceous and Paleogene with thickness of 100-200m. Two Petroleum Systems are identified, and one is J2y-N1p, Yangye Formation (J2y) serves as source rock, and Neogene Pakabulake(N1p) as reservoir rock. Another is C1+P1by-K1kz petroleum system, Lower Carboniferous and Lower Permian Biyoulieti Formation( P1by) serve as source rock, and Kezilesu Formation (K1kz) as reservoir rock. J2y-N1p petroleum system contains abundant oil sand resource. In 2001,Akmomu gas reservoir was discovered by AK＃1 in C1+P1by-K1kz petroleum system.

scholarly journals ANALISIS PENAMPANG RESISTIVITAS 2D METODE MAGNETOTELLURIK DAN AUDIO-MAGNETOTELLURIK UNTUK MENGETAHUI SISTEM PETROLEUM PADA CEKUNGAN SINGKAWANG

Wahana Fisika ◽  
2019 ◽  
Vol 4 (2) ◽  
pp. 81-88
Author(s):  
Rizky Kurniawan ◽  
Nanang Dwi Ardi ◽  
Hidayat Hidayat
Keyword(s):  
Source Rock ◽  
Oil And Gas ◽  
Petroleum System ◽  
Reservoir Rock ◽  
First Line ◽  
Measuring Station ◽  
Result Show ◽  
Magnetotelluric Method ◽  
Natural Electromagnetic Field ◽  
Conventional Oil

Indonesia memiliki cadangan minyak bumi potensial yang cukup banyak, salah satunya terdapat pada Pulau Kalimantan. Pada bagain barat pulau ini memiliki cekungan besar, yakni Cekungan Melawi dan Cekungan Ketungau. Kedua cekungan ini diperkirakan berumur pra-tersier. Tetapi, kedua cekungan ini tidak memiliki potensi ekonomis untuk migas konvensional, dan diperkirakan ada satu cekungan lain yang beumur sama dengan kedua cekungan ini. Cekungan ini dikenal sebagai Cekungan Singkawang. Cekungan ini diperkirakan memiliki sistem petroleum yang tersusun dari formasi Batupasir Kayan, Formasi Pendawan, Formasi Brandung, Kelompok Bengkayang serta Formasi Seminis. Untuk menganalisis struktur ini, digunakan metode magnetotellurik dan audio-magnetotellurik yang memanfaatkan medan elektomagnetik alam. Data yang diperoleh dari kedua metode ini masing-masing terdiri dari 14 titik dengan 2 lintasan. Lintasan pertama terdiri dari 10 stasiun pengukuran dan lintasan kedua dengan 5 titik pengukuran. Data ini merupakan data yang didapatkan dari rentang frekuensi 320 – 0,00034 Hz  untuk metode magnetotellurik dan 3,3 – 10400 Hz untuk metode audio-magnetotellurik. Berdasarkan kedua metode ini, diperoleh lapisan dengan nilai resistivitas dengan rentang 4 – 54 Ωm yang diperkirakan sebagai Kelompok Bengakayang yang berpotensi sebagai batuan sumber (source rock). Sedangkan lapisan dengan nilai resistivitas 119 – 437 Ωm  diperkirakan sebagai Vulkanik Raya dan 1611 – 3532 Ωm sebagai Granodiorit Mensibau. Kedua formasi ini diperkirakan sebagai batuan reservoir (reservoir rock), meskipun untuk penentuan jenis batuan ini sebagai batuan reservoir harus diteliti lebih lanjut lagi.Indonesia has lot of potential of reserved crude oil, one of the region has a lot reserved is Borneo Island. In this island, there are two huge basin located in the west, there are Melawi Basin and Ketungau Basin. Both of the basin approximately pre-tertiary aged. But both of the basin has not economic potential for conventional oil and gas, and probably there is other basin that has similar age with these basin. The name of the basin is Singkawang Basin. This basin predicted has petroleum system consists of Batupasir Kayan, Formasi Pedawan, Formasi Brandung, Kelompok Bengkayang, and Formasi Seminis. Magnetotelluric and audio-magnetotelluric method use to analyze this system. These method using natural electromagnetic field. Data obtained from this measurement consists of 14 measuring station with 2 line. First line consist 10 measuring station and second one consist 5 measuring station. This data also obtained from frequency range 320 – 0,00034 Hz for magnetotelluric method and 3,3 - 10400 Hz for audio-magnetotelluric method. Based these result, show that structure with resistivity value beetwen 4 – 54 Ωm predicted as Kelompok Bengkayang potentially to be source rock, while the layer with resistivity 19 – 437 Ωm predicted as Vulkanik Raya and 1611 – 3532 Ωm predicted as Granodiorit Mensibau. Both of the formation potentially as reservoir rock, although to determine the information of this formation as reservoir rock must be researched further.Keywords:  Petroleum system; Singkawang Basin; Magnetotellurics; and Audio-magnetotellurics 

scholarly journals HYDROCARBON POTENTIAL OF TOLO BAY MOROWALI REGENCY: QUALITATIVE ANALYSIS

2015 ◽  
Vol 38 (1) ◽  
pp. 13-24
Author(s):  
Suliantara Suliantara ◽  
Tri Muji Susantoro
Keyword(s):  
Source Rock ◽  
Seismic Data ◽  
Middle Miocene ◽  
Oil And Gas ◽  
Tectonic Setting ◽  
Oil Field ◽  
Reservoir Rock ◽  
Exploration Risk ◽  
Directorate General ◽  
Block Based

Tolo Bay is located between East Arm and Southeast Arm Sulawesi, reaching a water depth of up to 3500 meters below sea level. Regionally, this block is situated within Banggai Basin where some gas and oil fi elds are already in production. The closest fi eld is Tiaka Oil Field located about 125 kilometers northwest of the study area. A geo-science review has been conducted to clarify the potential existence of hydrocarbon in this block. Based on previous reports, papers, and subsurface data from the Directorate General of Oil and Gas, the study area is located within the collision area between Banggai-Sula Microcontinent and Sulawesi. This collision occurred during Late Creataceous and Middle Miocene periods. During drifting phase a sedimentation process occurred at the front of the Banggai-Sula Microcontinent. This sediment is potentially source rock and reservoir rock. Meanwhile, during the drifting phase the study area is interpreted as located at the southern part of Banggai-Sula Microcontinent. This different tectonic setting will impact on the type of sedimentary rock, hence source rock and reservoir rock occurrence in the study area is still unclear. As source rock and reservoir rock within the study area are unclear, hydrocarbon explorations will be very risky. In order to reduce exploration risk, it is proposed to conduct geological and geophysical studies using the latest seismic data that was surveyed by PT. TGS – NOPEC and PT. ECI – PGS.

scholarly journals ADVANCES ON THE GEOLOGY AND EVALUATION OF POTENTIAL PETROLEUM SYSTEMS OF THE SOKOTO BASIN IN NW NIGERIA

2020 ◽  
Vol 1 (2) ◽  
Keyword(s):  
Source Rock ◽  
Current Knowledge ◽  
Petroleum System ◽  
Source Rocks ◽  
Tectonic Structures ◽  
Reservoir Rocks ◽  
Petroleum Systems ◽  
Potential Reservoir ◽  
Geochemical Studies ◽  
Controlled Structures

The stratigraphy of the Sokoto Basin has the Illo/Gundumi Formation at the bottom, followed successively upward by the Taloka, Dukamaje, Wurno, Dange, Kalambaina, Gamba and Gwandu Formations. Re-mapping of the basin carried out in this study shows that the geological framework remains largely as previously outlined except that some hitherto unreported tectonically controlled structures have been documented. The basin is generally shallower at the margin and deepens towards the centre such that the areas around the border with Niger Republic are deepest and hence most prospective on the Nigerian side. Geophysical aeromagnetic interpretation has assisted to analyze the depth to basement configurations. Organic geochemical studies show that the dark shales and limestones of the Dukamaje Formation constitute the source rocks in the potential petroleum system. With averages for source rock thickness of 50m, area of basin of 60,000km2, TOC of 7.5wt%, and HI of 212mgHC/gTOC, charge modeling indicates 808.10 million barrels of oil equivalent extractable hydrocarbons in the Sokoto Basin, at current knowledge of the geology and if the appropriate maturity has been attained at deeper sections. The sandstones of the Illo/Gundumi Formation as well as in the Taloka and Wurno Formations and carbonates of the Kalambaina Formation provide potential reservoir packages. The paper shale of the Gamba Formation and the clays of the Gwandu Formation provide regional seals. If the presently mapped tectonic structures are ubiquitous in the whole basin, structural and stratigraphic traps may upgrade the petroleum system. Other petroleum systems may exist in the basin with either or both the Illo/Gundumi and Taloka Formation(s) providing the source and reservoir rocks. Keywords: Sokoto Basin, Dukamaje Formation, Hydrocarbons, Petroleum System, Reservoirs

Seeing through the dolerite-seismic imaging of petroleum systems, Tasmania, Australia

2015 ◽  
Vol 55 (1) ◽  
pp. 297
Author(s):  
Malcolm Bendall ◽  
Clive Burrett ◽  
Paul Heath ◽  
Andrew Stacey ◽  
Enzo Zappaterra
Keyword(s):  
Seismic Energy ◽  
Petroleum System ◽  
Source Rocks ◽  
Contact Metamorphism ◽  
Seismic Surveys ◽  
Reservoir Rocks ◽  
Petroleum Systems ◽  
Potential Reservoir ◽  
Frequency Sweeps ◽  
The Many

Prior to the onshore work of Empire Energy Corporation International (Empire) it was widely believed that the widespread sheets (>650 m thick) of Jurassic dolerite (diabase) would not only have destroyed the many potential petroleum source and reservoir rocks in the basin but would also absorb seismic energy and would be impossible to drill. By using innovative acquisition parameters, however, major and minor structures and formations can be identified on the 1,149 km of 2D Vibroseis. Four Vibroseis trucks were used with a frequency range of 6–140 Hz with full frequency sweeps close together, thereby achieving maximum input and return signal. Potential reservoir and source rocks may be seismically mapped within the Gondwanan Petroleum System (GPS) of the Carboniferous to Triassic Parmeener Supergroup in the Tasmania Basin. Evidence for a working GPS is from a seep of migrated, Tasmanite-sourced, heavy crude oil in fractured dolerite and an oil-bearing breached reservoir in Permian siliciclastics. Empire’s wells show that each dolerite sheet consists of several intrusive units and that contact metamorphism is usually restricted to within 70 m of the sheets’ lower margins. In places, there are two thick sheets, as on Bruny Island. One near-continuous 6,500 km2 sheet is mapped seismically across central Tasmania and is expected, along with widespread Permian mudstones, to have acted as an excellent regional seal. The highly irregular pre-Parmeener unconformity can be mapped across Tasmania and large anticlines (Bellevue and Thunderbolt prospects and Derwent Bridge Anticline) and probable reefs can be seismically mapped beneath this unconformity within the Ordovician Larapintine Petroleum System. Two independent calculations of mean undiscovered potential (or prospective) resources in structures defined so far by Empire’s seismic surveys are 596.9 MMBOE (millions of barrels of oil equivalent) and 668.8 MMBOE.

scholarly journals PROSPEK SUMBER DAYA ENERGI BERDASARKAN ANALISIS POLA ANOMALI GAYA BERAT DI DAERAH BIAK DAN SEKITARNYA, PAPUA

2016 ◽  
Vol 13 (2) ◽  
pp. 87 ◽  
Author(s):  
Saultan Panjaitan ◽  
Subagio Subagio
Keyword(s):  
Gravity Anomaly ◽  
Oil And Gas ◽  
East Coast ◽  
Gravity Anomalies ◽  
Source Rocks ◽  
Reservoir Rock ◽  
Ultramafic Rocks ◽  
Reservoir Rocks ◽  
Northern City ◽  
Fluid Reservoir

Hasil penelitian gayaberat di Pulau Biak menghasilkan anomali gayaberat yang dikelompokkan kedalam 2 (dua) satuan yaitu anomali gayaberat 50 mGal hingga 120 mGal membentuk rendahan anomali mencerminkan cekungan. Kelompok anomali gayaberat 120 mGal hingga 220 mGal membentuk tinggian anomali. Pola tinggian anomali sisa 0 mGal hingga 2 mGal diduga sebagai perangkap struktur migas yang terdapat di daerah Kota Biak utara, Mandon dan lepas pantai timur P. Pai. Batuan bertahanan jenis rendah antara 0 - 16 Ohm-meter yang mengindikasikan batuan reservoir jenuh fluida terbentuk di kedalaman 2500 meter. Kedalaman batuan dasar terbentuk antara 7000-8500 meter, dengan rapat massa batuan 2.9 - 3.1 gr/cm3 bertahanan jenis tinggi 1000-8200 Ohm-meter diduga sebagai cerminan dari batuan ultramafik kerak samudera. Batuan yang menyusun di daerah penelitian terdiri atas lapisan batuan Tersier dengan rapat massa 2.45 gr/cm3, batuan Pra-Tersier dengan rapat massa 2.75 gr/cm3 dan batuan dasar dengan rapat massa 3.1 gr/cm3. Batuan sumber adalah serpih Formasi Makat berumur Miosen dengan rapat massa batuan 2.45 gr/cm3, sedangkan batuan reservoir terdiri dari batupasir Formasi Mamberamo. Kata kunci Gayaberat, cekungan, migas, anomali sisa, rapat massa, sesar, antiklin, batuan sumber, tahanan jenis. Gravity research on the island of Biak gravity anomalies are grouped into two (2) units is a gravity anomaly 50 mgal up to 120 mgal is basin reflecting. Gravity anomaly 120 mgal up to 220 mgal formed heights anaomaly. Altitude residual anomaly from 0 mGal to 2 mgal is oil and gas as trapping structures contained in the northern City of Biak, off the east coast Mandon and P. Pai. The rocks is of low resistivity between 0 -16 Ohm-meter that indicates the saturated fluid reservoir rocks are in the depths of 2500 meter. The depth of the bedrock formed between 7000-8500 meters, with density 2.9 - 3.1 gr / cm3 is heights resistivity types of 1000-8200 Ohm-meter interpreted as a reflection of ultramafic rocks oceanic crust. The rocks in the study area consists of Tertiary rocks layers with a density 2.45 gr / cm3, the Pre-Tertiary rocks with density 2.75 gr / cm3 and bedrock with density 3.1 gr / cm3. The source rocks is of shale from Makat Formation Miocene age with density 2.45 gr / cm3, and the reservoir rock consists of sandstone Mamberamo Formation. Keywords: Gravity, basin, oil and gas, recidual anomaly, density, fault, anticline, source rocks, resistivity.

PETROLEUM SYSTEMS OF THE PETREL SUB-BASIN-AN INTEGRATED APPROACH TO BASIN ANALYSIS AND IDENTIFICATION OF HYDROCARBON EXPLORATION OPPORTUNITIES

1996 ◽  
Vol 36 (1) ◽  
pp. 248 ◽  
Author(s):  
B.A. McConachie ◽  
M.T. Bradshaw ◽  
J. Bradshaw
Keyword(s):  
Source Rock ◽  
Outer Part ◽  
Integrated Approach ◽  
Petroleum System ◽  
Hydrocarbon Exploration ◽  
Petroleum Potential ◽  
Petroleum Systems ◽  
Marine Source Rock ◽  
Marine Source ◽  
Timor Sea

A petroleum system evaluation of the Petrel Sub-basin in the Bonaparte Gulf, northwest Australia, suggests that the wells drilled in the area have not fully evaluated the petroleum potential. Some of the lowest risk plays in the basin have not been tested adequately or have not been assessed in probable economic fairways.Several important discoveries have highlighted the existence of at least three petroleum systems in the Petrel Sub-basin; Larapintine, Transitional and Gondwanan. Best known are the Gondwanan gas discoveries at Petrel, Tern and most recently Fishburn, where hydrocarbons are reservoired in Late Permian sandstones and are probably sourced from Permian deltaic sequences. Kurt her inshore, oil has been recovered from Carboniferous and Early Permian reservoirs at Turtle and Barnett. The source of the oil is considered to be Carboniferous anoxic marine shales of a distinct petroleum system transitional between the Gondwanan and Larapintine systems (Milligans Formation source rock and Late Carboniferous to Permian reservoirs). Onshore, there is a gas discovery at Gariinala-1 and significant oil shows in Ningbing-1, in Late Devonian Larapintine system rocks. Geochemical analysis of the oil shows it to be sourced from a carbonate marine source rock, different from the clastic derived oils obtained from Turtle and Barnett.Recent discoveries in the Timor Sea have provoked a re-assessment of the very similar, largely untested, Mesozoic, Westralian petroleum system in the outer part of the Petrel Sub-basin. The prospective Mesozoic play fairway occurs in the northern part of the Petrel Sub-basin, extending into Area B of the Zone of Cooperation.

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