Measurement of Hydrocarbon Dew Point for Natural Gas of Titas Gas Field in Bangladesh
Soumik Mahmood Leon,
Mohammad Shaheen Shah,
Syed Istiyak Ahmed,
Mohammad Shimul Hossain,
Tasnim Jahan Nausheen,
Farzana Yeasmin Nipa,
Rafsanjani Rafi
Issue:
Volume 2, Issue 2, December 2018
Pages:
50-59
Received:
25 July 2018
Accepted:
7 August 2018
Published:
12 September 2018
DOI:
10.11648/j.pse.20180202.11
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Abstract: Hydrocarbon dew point (HCDP) measurement is universally used in the natural gas industry as an important quality parameter and it is noteworthy for the transportation of natural gas safely through the pipelines. Necessary measures should be taken to avoid hydrocarbon condensation as it can create ice or plug in the pipe line if the hydrocarbon dew point of pipelined natural gas is too high. This problem is rising in single phase transportation. Thus, for the best use of natural gas maintaining all safety measures prediction of hydrocarbon dew point is a must. In this study a scientific investigation has been conducted by the authors to scientifically investigate the hydrocarbon dew point of several gas wells (Location-A, C, E, G) of Titas Gas fields in Bangladesh. As per latest Petrobangla re-estimation, total recoverable gas reserve of Titas gas field is 7,582 billion cubic feet (BCF). Commercial gas production from this field was commenced in April 1968 and till May 31, 2018 total 4545.491 billion cubic feet gas or 59.95% of reserves has been recovered. Applying various experiments has been conducted for this measurement with a view to finding the effect of the volume of the sample gas, the chamber’s temperature and the sample conditioning. It is observed that, no volume effect or sample conditioning effect was found. Despite chamber’s temperature is observed that ranges from 73 to 90 °C which has an effect of approximately 0.9 °C on the measured dew points. This research depicts the another challenging issue is adsorption phenomena which is observed of heavy hydrocarbons inside the rig, which is common in HCDP measurements, this effect is more predominant in gases consisting of heavier compounds, as in the case of the real gas.
Abstract: Hydrocarbon dew point (HCDP) measurement is universally used in the natural gas industry as an important quality parameter and it is noteworthy for the transportation of natural gas safely through the pipelines. Necessary measures should be taken to avoid hydrocarbon condensation as it can create ice or plug in the pipe line if the hydrocarbon dew ...
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Assessment of the Risks and Challenges Encountered During Well Clean Up and Test on Niger Delta Gas Wells - Based on Practical Experience on Cases
Nnaemeka Princewill Ohia,
Charley Iyke Anyadiegwu,
Chukwuemeka Muonagor
Issue:
Volume 2, Issue 2, December 2018
Pages:
60-68
Received:
30 September 2018
Accepted:
22 October 2018
Published:
25 December 2018
DOI:
10.11648/j.pse.20180202.12
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Abstract: In this work, the risks, non-technical and operational challenges encountered during well clean up and test on Niger Delta gas wells are assessed based on practical experience on four gas wells worked on by the authors. Previous works on general challenges and improvements in well clean up and tests were consulted, which formed the bedrock of this review paper. The reservoir and wells worked on are described. The reservoir is a non-associated gas reservoir in one of the Niger Delta fields. The challenges faced in the course of the cleanup and well test services on the four gas wells are presented in section 3 of the work. These challenges include issues of safety onsite; logistics management; commercial/contractual challenges and operational challenges like coiled tubing (CT) breakdown, CT inability to get to targeted depths, etc. The recommended and adopted solutions to the challenges are presented in section 4 of the work. The entire section 5 is a robust assessment of risks in gas well clean up and test operations. Risks probability, impact, consequences and mitigation methods are presented in Tables 1 to 5 of this section. Adhering to the recommended solutions and mitigation methods for the challenges and the risks illustrated in this work, would help eliminate downtime and unwanted happenings in the course of gas well clean up and test thereby making operations very successful.
Abstract: In this work, the risks, non-technical and operational challenges encountered during well clean up and test on Niger Delta gas wells are assessed based on practical experience on four gas wells worked on by the authors. Previous works on general challenges and improvements in well clean up and tests were consulted, which formed the bedrock of this ...
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