| About permeability, low permeability oilfield water in Detroit Maoyou oil reservoirdevelopment has been the development of oil workers facing problems, the conventionaldevelopment is difficult, inefficient, low recovery. In recent years, the development ofsuch oilfields around how to effectively accelerate the field development process, theactual geological setting and petroleum storage case Wayaobao oilfield has entered thewater for the oil reservoir and the reservoir bottom water is developed, the class of wellsIf using conventional fracturing process may result in higher oil production afterfracturing moisture content of more than80-90%, for the development of normal oilcaused great difficulties. To effectively solve this problem, first introduced to extend thecontrol of oil fields Wayaobao seam fracturing technology development in new wells in2008. The technology is making joints in fracturing process, adding in a fracturing fluiddensity larger solid additives, such small solid particles in a liquid crack on its owngravity, the automatic sink laid in cracks the lower part of the formation of a man-madebarrier tape to reduce shear rock under control crack extends down, prompting the crackextends horizontally to achieve the purpose of increasing oil and water control. Afterpilot test, with good results. Then gradually extended to old wells tapping the potentialtransformation among the80percent of the measures to achieve the desired purpose well.In this paper, the control mechanism seam fracturing, factors affecting the control seamfracturing effect and applicable conditions of controlled seam fracturing conducted apreliminary analysis and evaluation, I hope to further promote the application of thistechnology can produce a certain reference. |
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