Title: Variation laws of stripper wells in the U.S.and practices of increasing single-well production in China
Abstract: There are large-scale stripper wells in the U.S.,80%of which produce 20%of the total crude oil and the average daily production of single stripper well is only one sixth of that of overall single well.However,those wells play a significant role in U.S.crude oil production.The stripper-well management experience of the U.S.is worth learning.China is also faced with the challenges from thousands of stripper wells.These wells can be classified into 3types:(1) low-grade reserves,(2) high water cut,and(3) low yield and no fluid.It is predicted that when the recovery percent of recoverable reserves is increased to 90%by PetroChina,stripper wells will make up two thirds of the whole,and their outputs account for 29%-35%of the total production.Reasonable use and protection of stripper wells is of great significance for guaranteeing the energy security in China.In order to achieve the stable and high production of single well,three main measures are adopted as below:(1) Development method is changed through key exploration tests to increase the production of single well of low grade reservoirs,such as heavy oil reservoirs and shallow-sea oil.(2) The special control project for water-flooding development and secondary development of mature oilfields are implemented to raise the output of a high water cut well(3) The production of single well in low permeability oilfields is increased though large-scale application of horizontal wells and a breakthrough in reservoir stimulation technologies.
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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