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史深100井位于济阳坳陷东营凹陷中央断裂背斜带构造,勘探主要目的层为沙三中的高压低渗储层。为二开长裸眼井,并且所需钻井液密度较高,施工中容易发生井壁失稳和井漏、粘卡等井下复杂和事故,油气层保护难度较大。针对该井的地层特性,结合胜利油田目前中深井钻井液技术现状,在史深100井采用聚硅氟钻井液,取得了很好的效果。
The Shi-Shen-100 well is located in the central fault anticline in the Dongying Sag, Jiyang Depression. The main target for exploration is the high-pressure and low-permeability reservoir in the third member of the Shahejie Formation. For the second open long hole, and the required drilling fluid density is higher, prone to instability in the construction of the well wall and leakage, sticky cards and other underground complex and accidental, reservoir protection more difficult. According to the stratigraphic characteristics of the well and the current status of middle and deep well drilling fluid technology in Shengli Oilfield, the polysilicone drilling fluid was used at Shoushen 100 well and achieved good results.