Application of 3D fine seismic interpretation technique in Dawangzhuang Area, Bohai Bay Basin, Northeast China

Xia, Shiqiang; Li, Quan; Wang, Xiande; Sun, Chenghua; Wang, Ye; Hu, Zhenbang; Li, Xin; Zheng, Qifang

doi:10.1007/s12517-013-1225-6

Cited by 26 publications

(15 citation statements)

References 10 publications

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“…The presence of these faults around the structural highs of the field is an indication that the geometry of the reservoir is good for a possible hydrocarbon accumulation as seen from the well logs acquired from the four wells drilled [33]. The results of this study is in line with several key studies which applied 3-D interpretation and advanced visualization in geologicaly interpretation of structural and stratigraphic features [34][35][36][37][38][39][40]. Generally, the structural style of the study area is dominated by simple rollover anticlines and collapsed crest faults which is in line with previous studies in the Niger delta [12,[21][22]32].…”

Section: Discussion Of Resultssupporting

confidence: 82%

3-D Seismic Interpretation and Volumetric Estimation of “Osaja Field” Niger Delta, Nigeria

Osaki

Opara

Okereke

et al. 2016

ILNS

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3-D seismic interpretation and petrophysical analysis of the Osaja Field, Niger Delta, was carried out with aim of carrying out a detailed structural interpretation, reservoir characterization and volumetric estimation of the field. Four wells were correlated across the field to delineate the lithology and establish the continuity of reservoir sand as well as the general stratigraphy of the area. The petrophysical analysis carried out, revealed two sand units that are hydrocarbon bearing reservoirs (Sand_A and Sand_B).The spatial variation of the reservoirs were studied on a field wide scale using seismic interpretation. Time and depth structural maps generated were used to establish the structural architecture/geometry of the prospect area of the field. The depth structure map revealed NE-SW trending anticlinal structures with F5and F6as faults assisted closures to the reservoir. Furthermore, reservoir parameters such as net pay, water saturation porosity, net-to-gross etc, were derived from the integration of seismic and well log data. The structural interpretation on the 3-D seismic data of the study area revealed a total of seven faults ranging from synthetic to antithetic faults. The petrophysical analysis gave the porosity values of the reservoir Sand_A ranging from 18.1 - 20.3% and reservoir Sand_B ranging from 13.1-14.9% across the reservoir. The permeability values of reservoir Sand_A ranging from 63-540md and reservoir Sand_B ranging from 18-80md hence there is decrease in porosity and permeability of the field with depth.The net-to-gross varies from 22.1% to 22.4% in Rerservoir Sand A to between 5.34- 12% for Rerservoir Sand _A while Sw values for the reservoirs ranges from 38-42% in well 2 to about 68.79-96.06% in well 11. The result of original oil in place for all the wells calculated revealed that well 2 has the highest value with 9.3mmbls. These results indicate that the reservoirs under consideration have a poor to fair hydrocarbon (oil) prospect.

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Section: Discussion Of Resultssupporting

confidence: 82%

3-D Seismic Interpretation and Volumetric Estimation of “Osaja Field” Niger Delta, Nigeria

Osaki

Opara

Okereke

et al. 2016

ILNS

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“…The borehole information is employed to calibrate seismic interpretation to correlation and trace the distribution and contact relationship of sequence boundaries. Then, the cores and stacking patterns of wireline logs (GR comes first if available) are utilized to identify sedimentary facies (Xia et al, ). The analysis of seismic attributes, which are extracted based on seismic sedimentology and calibrated by borehole data are used to predict facies distributions and reveal depositional evolutions.…”

Section: Database and Methodsmentioning

confidence: 99%

Sequence stratigraphy, depositional systems, and petroliferous plays within a low‐accommodation setting: A case study from the Lower Jurassic Sangonghe Formation, Xiayan Rise, Junggar Basin, Northwestern China

Xia

Zhang

et al. 2019

Geological Journal

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The Xiayan Rise (Junggar Basin, NW China) preserves a record of fluvial-deltaiclacustrine, low-accommodation deposits of the Lower Jurassic Sangonghe Formation. Sequence stratigraphy, depositional systems, and petroliferous plays are investigated with seismic sections, wireline logs, and cores. The results indicate that two thirdorder sequences and eight fourth-order sequences are recognized. The sequence architecture is controlled by episodic tectonic movement, sediment supply, and climate. In addition, several sedimentary microfacies are identified including braided delta deposits and shore-shallow lacustrine deposits. During the depositional period of J 1 s 2 2 , basin tectonics result in a decrease in water depth and accommodation space. Subaqueous distributary channels are wide and flat which superimpose and connect with each other. During the depositional period of J 1 s 2 1-2 , tectonic movement results in increasing water depth and accommodation space during a phase of warm and humid climate. During the depositional period of J 1 s 2 1-1 , the accommodation space was limited but sediment supply continued which is easy to form forced regression. Low rates of tectonic subsidence and low accommodation space results in the distribution of isolated subaqueous distributary channels which resulted from lacustrine depth. Petroliferous plays comprising source rocks, reservoirs, and seals can be found in LST1 and LST2.

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“…According to the database provided, the workflows designed are used to study sequence architecture and depositional evolution of Enping Formation. Based on the comprehensive analysis of previous studies, seismic data, well data, and other related data about the study area, fine structural interpretation of 3‐D seismic merging volume profiles provides the basis for establishing sequence stratigraphic framework (Xia et al, ). In this step, different‐order unconformities (mainly second‐order and third‐order) are recognized based on the seismic reflections and wireline log stacking patterns.…”

Section: Methodsmentioning

confidence: 99%

Sequence architecture and depositional evolution in Lufeng Depression, Pearl River Mouth Basin, South China Sea Part A: The braided delta deposits of Cenozoic Enping Formation

et al. 2018

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The seismic merging dataset, wireline logs, core photographs, thin sections, and other geological information were employed to investigate sequence architecture and reveal depositional evolution of Enping Formation in Lufeng Depression, Pearl River Mouth Basin. The results showed that one second‐order sequence and four third‐order sequences were identified based on the unconformities along basin margin/slope and correlative conformities in the basin centre. In addition, several associated sedimentary facies or microfacies (including braided channel deposits, subaqueous distributary channel deposits, beach‐bar deposits, and so on) that were recognized within sequence stratigraphic framework and depositional evolution were revealed by well tie–seismic correlations with seismic attributes extracted from the stratal slicing in terms of sand sections/units in Enping Formation. It was characterized by progradational process from seismic attributes in general that the delta deposits gradually retrograded. Through comprehensive analysis, it can be concluded that episodic tectonic movements and subsequent uplift played an important role in controlling sequence architecture. Sediment supply and lacustrine level fluctuations derived from accommodation space changes exerted an essential effect on depositional evolution. This study provides new and robust insights into understanding the sequence architecture, depositional evolution, and hydrocarbon exploration in Enping Formation. In addition to the significance for academia, study of sequence architecture and depositional evolution are of great importance for hosting potential hydrocarbon reserves, because they are frequently related to important and potential reservoirs. Consequently, investigating sequence architecture and depositional evolution are significant economically as well.

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Application of 3D fine seismic interpretation technique in Dawangzhuang Area, Bohai Bay Basin, Northeast China

Cited by 26 publications

References 10 publications

3-D Seismic Interpretation and Volumetric Estimation of “Osaja Field” Niger Delta, Nigeria

3-D Seismic Interpretation and Volumetric Estimation of “Osaja Field” Niger Delta, Nigeria

Sequence stratigraphy, depositional systems, and petroliferous plays within a low‐accommodation setting: A case study from the Lower Jurassic Sangonghe Formation, Xiayan Rise, Junggar Basin, Northwestern China

Sequence architecture and depositional evolution in Lufeng Depression, Pearl River Mouth Basin, South China Sea Part A: The braided delta deposits of Cenozoic Enping Formation

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