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Research On The Control System Of Oil Extraction Joint Station Based On PLC

Posted on:2015-11-07Degree:MasterType:Thesis
Country:ChinaCandidate:L F LiFull Text:PDF
GTID:2181330431494944Subject:Oil and gas engineering
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Ring fluid except for a few low-pressure, oil-wetting, strong water sensitive formationsouts water-based fractuide, Applies to most of oil and gas layer and fracturing of differentsizes.Mainly water-based fracturing fluid thickener as its main ingredient, has a highviscosity, lower friction, strong sand carrying capacity, fluid loss performance is slightlybetter, there is a certain drag reduction at high flow rates. Jilin Oilfield currently widely usedconventional plant rubber as the main fracturing fluid thickener, For Jilin Oilfield lowpermeability, low porosity, low abundance reservoir fracturing has achieved good results.How to improve the efficiency of the fracturing fluid, reducing reservoir damage, increasedfracture conductivity, It is also an important research topic of fracturing fluid.Conventional plant gum fracturing fluid due to water insoluble, high residue levels,Formation damage and clogging and the proppant pack of severe congestion, Anti-ranked andlow permeability reduction and seriously affect the of oil and gas output, thereby greatlyreducing the effect of fracturing. Therefore fracturing fluid reservoir permeability damagecaused aroused great attention, Further research has also become the focus of the fracturingfluid. The issue is to reduce the cost of fracturing fluid and reservoir damage, improve theadaptability and effectiveness of fracturing as the goal, Research presented associativepolymer fracturing fluid cleaning research and application in Jilin exploration area. Thismajor clean fracturing fluid thickener using XYCF-1, Higher concentrations XYCF1-accelerator with the auxiliary rheological XYCF-1B are formed similar to the samecrosslinked polymer network structure, The solution has the necessary viscosity andviscoelasticity, carrying sand with a strong performance. This clean fracturing fluid is atheoretical structure of molecular association to form a fluid design and developed a series ofchemical agents, no crosslinking has ability to carry enough. This associative polymerfracturing fluid cleaner than conventional plant gum fracturing fluid, Having better shearstability, and reduce the flow resistance ability, To ensure the effect of drag reduction of highvelocity and sand carrying ability.
Keywords/Search Tags:thickener, clean fracturing fluid, viscosity, promoter, molecular structure
PDF Full Text Request
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