Chromatographic Fingerprint Analysis Technology In The Oilfield Monitor Applications

Crude oil fingerprint technology using characteristics between compounds chromatographic fingerprint analysis, sure wells based layered capacity. Because most of the oil Wells is daqing oilfield co-layer development, oil-reservoir water flooding level is very serious, and water-oil relations are very complex, oilfield comprehensive high water-bearing, Oilfield stable production difficult. So we need to research monitoring oil wells stratification and layered aqueous layer of output condition monitoring and evaluation of new technology urgently. Further evaluate the development of water flooded, research development of remaining oil distribution block, grasp the dynamics of change in oil field development. Therefore develop chromatographic fingerprint method to monitor oil wells stratification and layered aqueous layer of output condition monitoring and evaluation of new technology research applications.In Daqing the fourth and the ninth oil production factory has carried on 24 well field test ,the success rate of the underground layer segment sampling technology go down column is 90%, the single well sample stratigraphic interval number is not lower than 5, each layer for accurate rate, success ratio above 90%, Of the oil samples obtained by the whole hydrocarbon and light hydrocarbon chromatographic fingerprint analysis, and conducted a mixed test, through chromatographic fingerprint analysis of crude oil analysis technology, under the premise of deviation is less than 2%, two layers oil production rate explanation relative error less than 5% , three layers of not more than 10%, four layers is not more than 15%, four layers above is not more than 20%, under the premise of deviation is less than 1%, The precision enhances one time, Single-layer water content explanation deviation control in 20%.This research process includes oil wells to monitor layered stratified oil production and monitor layered stratified water production and oily water methods of interpretation.Oil wells monitoring layered stratified oil production, as long as the connectivity of oil layer is good. You can use the chromatograph fingerprint of one well to monitor many recovery well .It has the broad application prospect.Oil wells monitoring layered stratified water production, different layers of oil hydrocarbon fingerprinting significant, this to use the light hydrocarbon parameter to explain that exploit single-layer moisture content and the flooding degree has found the theory basis. Oily water interpretation, oil wells monitoring layered stratified oil production and oil wells monitoring layered stratified water production interpretation is synchronized, can be co-layer exploitation single oil production, oil production rate; co-layer mining single water production , water production rate; Each layer produces the oil to produces the water contribution ratio ; oil layer flooding degree comprehensive interpretation , and then draw the zones according to the results of single well oil distribution block plane.