Increasing ultimate oil recovery by infill drilling and converting weak production wells to injection wells using streamline simulation

M. Sayyafzadeh, P. Pourafshary, F. Rashidi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Developing a giant field is a challenging task; the main goal is to reach to the highest ultimate oil recovery (UOR) by finding the best locations for new producers and injectors. Besides, converting existing producers to injectors and vice versa are other ways to increase the recovery. Hence, in this approach, we use combination of infill drilling and converting producer well to injector so as to maximize UOR. Lots of methods are recommended to develop fields, but none of them is comprehensive enough. To develop a field, the location of a new well should be considered and then its effect on the ultimate production should be investigated. This approach normally deals with testing hundreds or thousands of potential infill alternatives by numerical simulations which is a very time consuming and expensive process. One of the newest methods to develop a field is using streamline simulation. In this approach, we suggest two main stages; first to gain the most possible advantages from the infill drilling, new producers should be drilled in sections of the reservoir where the streamline density is low and the oil saturation is high. Second, converting mostly dead producers to injectors could be a very useful method based on the density of the streamlines around the old producers. We used the method to develop a complicated reservoir. For this reason, we used grid-base and streamline simulation to verify the outcomes. The results show that UOR increases around 70 percent by infilling and switching the producers to injectors. In this work, we use the streamline approach to develop a guideline to drill new producers and switch some of the old producer wells to injectors in order to increase the oil recovery. This method could compete favorably with EOR processes on a recovery basis for much less investment and operating cost.

Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - International Oil and Gas Conference and Exhibition in China 2010, IOGCEC
Pages2865-2871
Number of pages7
Volume4
Publication statusPublished - Dec 31 2010
Externally publishedYes
EventInternational Oil and Gas Conference and Exhibition in China 2010: Opportunities and Challenges in a Volatile Environment, IOGCEC - Beijing, China
Duration: Jun 8 2010Jun 10 2010

Publication series

NameSociety of Petroleum Engineers - International Oil and Gas Conference and Exhibition in China 2010, IOGCEC
Volume4

Conference

ConferenceInternational Oil and Gas Conference and Exhibition in China 2010: Opportunities and Challenges in a Volatile Environment, IOGCEC
CountryChina
CityBeijing
Period6/8/106/10/10

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Energy Engineering and Power Technology
  • Fuel Technology

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