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    • 6. 发明申请
    • IN SITU FLUID FORMATION FOR CLEANING OIL-OR SYNTHETIC-OIL-BASED MUD
    • 原位流体形成用于清洁油或合成油基泥浆
    • WO2008045734A3
    • 2008-06-19
    • PCT/US2007080258
    • 2007-10-03
    • BAKER HUGHES INC
    • QUINTERO LIRIOCLARK DAVID EJONES THOMAS ASALGER JEAN LOUISFORGIARINI ANA
    • C09K8/22C09K8/32
    • C09K8/32C09K8/524C09K8/528E21B37/08
    • Nanoemulsion, macroemulsions, miniemulsions, microemulsion systems with excess oil or water or both (Winsor I1 Il or III phase behavior) or single phase microemulsions (Winsor IV) improve the removal of filter cakes formed during hydrocarbon reservoir wellbore drilling with OBM. The macroemulsion, nanoemulsion, miniemulsion, microemulsion systems with excess oil or water or both or single phase microemulsion removes oil and solids from the deposited filter cake. In one non-limiting embodiment, the emulsion system (e.g. single phase microemulsion, nanoemulsion, or other emulsions) may be formed in situ (downhole) rather than produced or prepared in advance and pumped downhole. Skin damage removal from internal and external filter cake deposition can be reduced.
    • 具有过量油或水或两者(Winsor I,II或III相行为)或单相微乳液(Winsor IV)的纳米乳液,粗乳液,微乳液,微乳液体系改善了用OBM在烃储层井眼钻井期间形成的滤饼的去除。 具有过量油或水或两者或单相微乳液的粗乳液,纳米乳液,细乳液,微乳液体系从沉积的滤饼中去除油和固体。 在一个非限制性实施方案中,乳液体系(例如单相微乳液,纳米乳液或其他乳液)可以原位形成(井下)而不是预先生产或制备并泵入井下。 减少内部和外部滤饼沉积的皮肤损伤。