Interpretation of wireline log data for reservoir characterization of the Rashidpur Gas Field, Bengal Basin, Bangladesh.

Habib, Md. Ahosan; Islam, Mohammad Tazul; Mita, M. R

doi:10.9790/0990-0144754

Cited by 24 publications

(14 citation statements)

References 5 publications

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“…So shallow distance short flow system exists here. The Rashidpur gas field has a depth of 1380-2787 m. The volumes of shale values were low within the hydrocarbon-bearing zones of Rashidpur gas field [15] and also the major fault is of narrower width but there are numerous other small faults running N-S trend on the eastern flank of the structure [16]. So the field is classified as "extensively faulted and fractured".It contains significant water bearing zones show in the table 1 for well-4 analysis.…”

Section: Analyzation Of Bachu's Variable Criteria For Potential Gas Fmentioning

confidence: 99%

Suitability Analysis of the Potential Gas Fields of Bangladesh for Carbon Dioxide Sequestration and A Simulation Approach for Titas Gas Field

Hoque¹,

Iqbal²,

Ahmed³

et al. 2019

J. Sci. Res.

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Global warming has become one of the major environmental issues all over the world. The temperature of the world is increasing day by day, and fortunately, everybody wants to mitigate this fearful condition from own perspective. Carbon dioxide sequestration is a worldwide recognized project for making huge amount of carbon inactive, which is the main component of greenhouse gases, by sequestrating it beneath the Earth. The paper aims to dictate the probable success of CO₂ sequestration in Bangladesh. As abandoned gas fields are the best options for sequestration, characteristics of the potential gas fields of Bangladesh have been analyzed according to Stefan Bachu's method of classification for CO₂ sequestration. Titas gas field shows the best suitability, and accordingly, an Eclipse simulation software basis approach has been taken for this field to determine possible outcomes from probable sequestration project. Simulation result predicts an amount of 2.92 Tcf carbon dioxide gas to be sequestrated after 50 years of simulation. Other criteria such as field pressure, gas saturation are also evaluated.

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Section: Analyzation Of Bachu's Variable Criteria For Potential Gas Fmentioning

confidence: 99%

Suitability Analysis of the Potential Gas Fields of Bangladesh for Carbon Dioxide Sequestration and A Simulation Approach for Titas Gas Field

Hoque¹,

Iqbal²,

Ahmed³

et al. 2019

J. Sci. Res.

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“…Actually, Surma Basin is a subbasin of Bengal Basin of Bangladesh. The Surma Basin is the northeastern continuation of the Bengal Foredeep and an area of later tectonics than Bengal Basin itself [15]. The Surma Basin is the most important in terms of sediment thickness probably exceeds 20 km and economic deposits [16].…”

Section: Geology Of the Structurementioning

confidence: 99%

“…(a) Depth structure map on the top of the Lower Gas Sand (R5), Contour interval 100 ms. (b) Subsurface relief map on the top of the Lower Gas Sand (R5). Composite well log responses in the gas sand horizons of the well RP #4 (after Islam et al[15]).…”

mentioning

confidence: 99%

Identification of Gas Sand Horizons of the Rashidpur Structure, Surma Basin, Bangladesh, Using 2D Seismic Interpretation

Islam

Habib²

2015

International Journal of Geophysics

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A total of 13 seismic sections were used for 2D seismic interpretation in order to assess the subsurface geometry of gas sand horizons and hydrocarbon prospect of the Rashidpur structure, Surma Basin, Bangladesh. Out of five reflectors, two selected reflectors were mapped for the study. The top of the Upper Gas Sand (R3) reflector was elongated in N-S with the axis swinging slightly to the east on the northern plunge. North-South trending thrust fault was identified in the eastern part which is parallel to the axial line of the structure. The reflection patterns of the gas sand horizons were parallel to each other and similar in nature. The reflection coefficients were positive at the base and negative at the top of the each gas sand horizons. Velocity dropped from 2562 m/s to 2177 m/s in the Upper Gas Sand (R3) and 4320 m/s to 3413 m/s in the Lower Gas Sand (R5) reflector. Bright spot and amplitude anomalies were identified on the top of the both gas sand horizons. The result depicts that the shape of the gas sand horizons is asymmetric anticline. The structure is compressed and elongated NNW-SSE trending anticline. The study reveals hydrocarbon potentiality of the structure.

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“…Wireline logging data basically includes resistivity, gamma ray, sonic, neutron and density logs and this logs are the elementary tool for identifying permeable zones for hydrocarbon with depth and thickness of the zones and to distinguish the boundaries of oil, gas or water in a reservoir. For estimating the reserve of a hydrocarbon reservoir this logs are very important [15].…”

Section: Methodsmentioning

confidence: 99%

Present Gas Reserve Estimation Using Wireline Logging Data of Habiganj Gas Field, Bangladesh

Rahman¹

2017

OGCE

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Habiganj Gas Field (HGF) is one of the most producing and promising gas field in Bangladesh which is ranked as second largest gas field in aspects of Gas Initially In Place (GIIP). It formed by a north south elongated anticline which lies in the northernmost end of the 130km long Baramura anticline from Tripura (India) in the south. This paper shows the present gas reserve estimation with a view of four gas producing wells (i.e. HBJ-7, HBJ-9, HBJ-10, and HBJ-11) in account of upper gas sand has been access via the investigation of lithology, wire line logging data and production data are used as parameter for volumetric method. The average water and gas saturation of the reservoir has also been determined by Archie equation. From the previous analysis with logging data of HGF, it was found that the Gas Water Contact (GWC) was at 1458m and at present it is at about 1415m. The upper gas sand lies at a depth of 1320m below the surface and has a maximum gross pay 230m thick. The gas sand shows average porosity 30% (calculated from the combination of neutron and density porosity logs) and average permeability in the range of 2-4 Darcy's which indicates an excellent quality reservoir. The water saturation of Habiganj gas sand layer is considered for the depth range of 1330m to 1510m with 5m interval in-deed. Thereafter, water saturation and gas saturation of those wells (HBJ-7, HBJ-9, HBJ-10 and HBJ-11) are 27% and 73%, 29% and 71%, 15% and 85%, and 19% and 81% respectively. The gas formation volume factor (B g ) is estimated at about 0.0075 (rcf/scf) for the average 2053.13psi shut in pressure. From the above discussion it is found that the Gas Initially in Place by HBJ-7, HBJ-9, HBJ-10, and HBJ-11 wells are 5.35Tcf, 4.83Tcf, 5.71Tcf and 5.20Tcf respectively and the cumulative reserve for the HGF is 5.25Tcf while the recoverable reserve is 3.13Tcf. This study would be significant implications for reserve estimation and decision making in an effort to explore the present condition of gas reserve in HGF and the techniques described here can be used in other gas field as a base line for projections of gas reserve.

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Interpretation of wireline log data for reservoir characterization of the Rashidpur Gas Field, Bengal Basin, Bangladesh.

Cited by 24 publications

References 5 publications

Suitability Analysis of the Potential Gas Fields of Bangladesh for Carbon Dioxide Sequestration and A Simulation Approach for Titas Gas Field

Suitability Analysis of the Potential Gas Fields of Bangladesh for Carbon Dioxide Sequestration and A Simulation Approach for Titas Gas Field

Identification of Gas Sand Horizons of the Rashidpur Structure, Surma Basin, Bangladesh, Using 2D Seismic Interpretation

Present Gas Reserve Estimation Using Wireline Logging Data of Habiganj Gas Field, Bangladesh

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