Literature statistics predict the development direction of the application of fuzzy ball fluids for oil and gas wells
Since it was first used in sidetracking horizontal wells of old wells in Moxi Gas Field in 2009,the working fluid with density lower than oil-water as the continuous phase,the system is more stable than foam,and it can increase oil and gas production and reduce water production after operation.It is widely used in six fields of petroleum engineering,such as drilling and workover.However,due to the lack of systematic application reports in the industry,some practitioners only understand the application situation in a single field,making it difficult to learn from past experience to solve practical problems and promote the progress of velvet sac fluid technology.By using literature statistical methods to predict the application direction of velvet sac fluid,clarify its technical hotspots and potential value,and promote its wider and more efficient engineering applications.Reviewing the field application process of velvet sac fluid over the past decade,combined with literature statistics and time series methods,comparing the distribution of past applications using hotspot rates,and predicting future application areas using the size of the undetermined system.The hot spot rates of velvet sac fluid in the fields of drilling,well repair,fracturing,oil stabilization and water control,acidification,and polymer displacement are 33%,23%,19%,13%,6%,and 6%,respectively.The high hot spot rate in the drilling field is mainly due to the adhesive properties of velvet sac fluid in wellbore stability,leak prevention and plugging,which improve rock strength characteristics.The slope of the linear equation fitted by time series method in the fields of drilling,well repair,fracturing,oil and water stabilization,acidification,and polymer displacement is-0.20,-0.10,0.11,-0.05,-0.09,and-0.10,respectively,with only fracturing being positive.Reflecting the current focus of petroleum engineering work,it also clarifies the significant development potential of capillary fluid in the field of hydraulic fracturing.The quantitative method of literature statistics not only overcomes the problem of traditional methods relying too much on experience,weak accuracy and scientificity in identifying hot fields,but also points out a method for literature review,providing researchers with an alternative way to predict future development directions.
New quality productivityArtificial intelligenceDigital transformationFuzzy-ball fluidsDrillingWorkoverFractureAcidEnhanced oil recoveryProfile controlSealaplugWater controlAlgorithm of Big-Data CocooningFormation damage