Abstract
With Lamadian Oilfield entering the late stage of ultra-high water cut, the number of thick layers in water drive is becoming less and less, so it is imperative to study the remaining oil in thin difference reservoir. For the thin difference reservoir, the independent off surface reservoir has naturally become an important research object [1]. It is necessary to study the waterflooding condition of the independent outer surface reservoirs to find out the producing law of the thin difference reservoirs at present. In this paper, we mainly use thewater washing data of independent outer surface reservoir and core data of sidewall of coring well to find the water flooding interpretation law of independent outer surface reservoir.This paper focuses on the analysis of the characteristics of the electric logging curve of the independent off surface reservoir after water flooding, and summarizes a set of qualitative interpretation methods suitable for the independent off surface reservoir of Lamadian oilfield. This method can improve the accuracy of waterflooded layer interpretation and meet the needs of remaining oil potential tapping in the later stage of ultra-high water cut.
Highlights
With Lamadian Oilfield entering the late stage of ultra-high water cut, the number of thick layers in water drive is becoming less and less, so it is imperative to study the remaining oil in thin difference reservoir
1.1 Analysis of water washing status of independent outer surface reservoir of core well. It is the most direct and accurate method to determine the watered out condition of oil layer by analyzing the data of water washing of sealed coring
(1) According to the statistics of coring data in 2015, weak washing and no washing accounted for 79.0%, while strong washing and medium washing only accounted for 21.0%, of which strong washing only accounted for 4.2%. It shows that the water washing degree of the independent outer surface reservoir in Lamadian oilfield is not high at present, and the weak non water washing is the main, the middle water washing is the second, and the strong water washing is the least
Summary
With Lamadian Oilfield entering the late stage of ultra-high water cut, the number of thick layers in water drive is becoming less and less, so it is imperative to study the remaining oil in thin difference reservoir. Study on qualitative interpretation method of water flooding in independent off surface reservoir of Lamadian Oilfield 1.1 Analysis of water washing status of independent outer surface reservoir of core well
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
