scholarly journals Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs

ACS Omega ◽  
2020 ◽  
Vol 5 (38) ◽  
pp. 24504-24512
Author(s):  
Mohamed Shamlooh ◽  
Ibnelwaleed A. Hussein ◽  
Mustafa S. Nasser ◽  
Musaab Magzoub ◽  
Saeed Salehi
Keyword(s):  
Gas Reservoirs ◽  
Conformance Control ◽  
Polymeric Gel ◽  
Sour Gas ◽  
Ph Controlled

A Dynamic Workflow of Well Health Issue Prediction – Sulfur Deposition

2021 ◽  
Author(s):  
Bashirul Haq
Keyword(s):  
Material Balance ◽  
Gas Production ◽  
Health Issue ◽  
Sulfur Deposition ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Actual Performance ◽  
Sulphur Deposition ◽  
Balance Analysis ◽  
Sour Gas

Abstract Sour gas reservoirs are vital sources for natural gas production. Sulphur deposition in the reservoir reduces a considerable amount of gas production due to permeability reduction. Consequently, well health monitoring and early prediction of Sulphur deposition are crucial for effective gas production from a sour gas reservoir. Dynamic gas material balance analysis is a useful technique in calculating gas initially in place utilizing the flowing wellhead or bottom hole pressures and rates during the well's lifetime. The approach did not apply to monitor a producing gas's health well and detect Sulphur deposition. This work aims to (i) modify dynamic gas material balance equation by adding the Sulphur deposition term, (ii) build a model to predict and validate the issue utilizing the modified equation. A unique form of the flowing material balance is developed by including Sulphur residue term. The curve fitting tool and modified flowing gas material balance are applied to predict well-expected behaviour. The variation between expected and actual performance indicates the health issue of a well. Initial, individual components of the model are tested. Then the model is validated with the known values. The workflow is applied to active gas field and correctly detected the health issue. The novel workflow can accurately predict Sulphur evidence. Besides,the workflow can notify the production engineers to take corrective measures about the subject. Keywords: Sulfur deposition, Dynamic gas material balance analysis, Workflow

Development of pickering emulsified polymeric gel system for conformance control in high temperature reservoirs

2020 ◽  
Vol 184 ◽  
pp. 106596 ◽  
Author(s):  
Tinku Saikia ◽  
Abdullah Sultan ◽  
Assad A. Barri ◽  
Nur Iman Khamidy ◽  
Abdulmalek A. Shamsan ◽  
...  
Keyword(s):  
High Temperature ◽  
Conformance Control ◽  
Polymeric Gel ◽  
Gel System

Research and Application of Material Corrosion Prevention Technology in the Completed well System for Sour Gas well

2013 ◽  
Vol 712-715 ◽  
pp. 1096-1099
Author(s):  
Ling Feng Li
Keyword(s):  
Steel Corrosion ◽  
Gas Production ◽  
Corrosion Prevention ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Gas Well ◽  
Corrosion Resistant Alloy ◽  
System Life ◽  
Sour Gas

For natural gas well in sour gas reservoirs, very serious corrosion in the completed well system is an important factor of gas production system life. In order to ensure the long-term development of gas wells, this paper mainly introduces material corrosion prevention technology in the completed well system, such as corrosion-resistant alloy steel corrosion control technology, bimetallic combination tubing, corrosion inhibitor technology and so on. By taking LJ Gas Field as an example, this paper introduces the material corrosion prevention technology in the completed well system in LJ Gas Field. For application in the completed well system in LJ Gas Field, the technology above have good performance of corrosion resistance.

Research on Tubing and Casing Corrosion in Sour Gas Reservoirs and Corrosion-Resistant Material Selection

2013 ◽  
Vol 690-693 ◽  
pp. 1516-1519
Author(s):  
Ling Feng Li
Keyword(s):  
Material Selection ◽  
Gas Production ◽  
Resistant Material ◽  
Gas Reservoirs ◽  
Gas Well ◽  
Corrosion Resistant ◽  
System Life ◽  
Sour Gas ◽  
Selection Of

For natural gas well in sour gas reservoirs, very serious corrosion in the gas well string is an important factor of gas production system life. In order to ensure the long-term development of gas wells, this paper mainly introduces the tubing and casing corrosion in sour gas reservoirs, corrosion-resistant material selection of tubing and casing in sour gas reservoirs and proposes the optimization idea and technique of tubing material selection.. By taking W 63 well as an example, this paper optimizes the material selection of production casing for W 63 well. For application, the optimal materials of gas well string in W 63 well have good performance of corrosion resistance.

Study and Application for Corrosion-Resistant Material Selection of Tubing and Casing in Sour Gas Reservoirs under Coexistence of H2S and CO2

2012 ◽  
Vol 485 ◽  
pp. 429-432
Author(s):  
Ling Feng Li ◽  
Xiao Ming Liu ◽  
Zhi Qiang Huang
Keyword(s):  
Material Selection ◽  
Gas Production ◽  
Resistant Material ◽  
Gas Reservoirs ◽  
Gas Field ◽  
Gas Well ◽  
Corrosion Resistant ◽  
Puguang Gas Field ◽  
Sour Gas ◽  
Selection Of

For natural gas well with high content of CO2 and H2S, very serious corrosion in the gas well string is an important factor of gas production system life. In order to ensure the long-term development of gas wells, this paper mainly study the corrosion-resistant material selection of tubing and casing in sour gas reservoirs under coexistence of H2S and CO2 and proposes the optimization idea and technique of tubing and casing material selection. By taking Puguang gas field as an example, this paper optimizes the material selection of production casing for Puguang gas field. By testing, the optimal materials of gas well string in Puguang gas field have good performance of erosion resistance

An Experimental Study on Fracture Conductivity Influenced by Sulfur Deposition

2013 ◽  
Vol 423-426 ◽  
pp. 644-648
Author(s):  
Ying Kun Fu ◽  
Zhi Ping Li ◽  
Feng Peng Lai ◽  
Bao Song Yang ◽  
Chao Meng
Keyword(s):  
Experimental Study ◽  
Hydrochloric Acid ◽  
Hydraulic Fracturing ◽  
Elemental Sulfur ◽  
Sulfur Deposition ◽  
Severe Damage ◽  
Gas Reservoirs ◽  
Fracture Conductivity ◽  
Sulfur Powder ◽  
Sour Gas

Deposition of solid elemental sulfur may arouse severe damage to the formation and significantly affect the gas deliverability in sour gas reservoirs. As one main measure of stimulation, hydraulic fracturing always ceases to work due to the sulfur deposition in the fractures. To have a better understanding of the failure of fracture conductivity caused by sulfur deposition and learn the degree of fracture conductivity improved by acidification, an experimental was implemented and studied. In this paper, both the sulfur powder and an artificial fractured core were employed to simulate the process of sulfur deposition in the fractures. A further step was made to inject some hydrochloric acid into the blocked fracture caused by sulfur powder. The result showed that the fracture conductivity could be greatly reduced by the sulfur deposition. The fracture conductivity can be decreased by 17%~47% due to sulfur deposition. However, to some degree, acid-fracturing can improve the conductivity of fracture by eroding the surface of fracture. This means the failure of fracture blocked by sulfur deposition can be improved by acidification.

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