Title:

The Case of Geothermal Energy from Productive, Depleted and Abandoned Oil and Gas Wells

Authors:

Humera FARAH

Key Words:

geothermal gradient, co-produce, oil & gas fields

Conference:

Stanford Geothermal Workshop

Year:

2017

Session:

Field Studies

Language:

English

Paper Number:

Farah

File Size:

892 KB

View File:

Abstract:

Pakistan as the other developing nations of the world, is suffering from energy deficit for past several years. The country is dependent on mostly imported fossil fuels such as coal and oil. The renewable energy usage is limited such as hydro and solar power generation. Nevertheless little or no attention by government, industry and academia has been paid to geothermal energy for heat and power generation. Oil and Gas Development Company Limited (OGDCL) is the largest private enterprise in Pakistan, involved in exploration and production of indigenous oil and gas. This study aimed to identify and examine the feasibility of harnessing geothermal gradient and co-produced fluids of productive, depleted and abandoned oil and gas wells of the OGDCL, located in various parts of Pakistan. Field surveys data was collected from relevant organizations and interviews of the key personal of the company were conducted to gather required info. The findings revealed that the company holds over one hundred depleted and some abandoned oil and gas wells in the country, which could be a potential source of heat and power generation. The geothermal gradient and co-produced fluids of approximately 80-150oC has been estimated in many active oil wells located in Northern Province of Khyber PaktunKhwa (KPK) and Punjab as well. The potential of the hot waters (co-produced fluids) of various categories of the oil and gas wells (currently active or depleted and abandoned) as low cost heat and power source for residential and commercial purpose has also never been investigated. The hot fluids are presently drained into nearby streams as waste water or re-injected into the wells. A comprehensive investigation is recommended on selected wells of OGDCL to evaluate their pioneer usage for power generation in the country.


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