Single Phase Microemulsions and In Situ Microemulsions for Cleaning Formation Damage
    1.
    发明申请
    Single Phase Microemulsions and In Situ Microemulsions for Cleaning Formation Damage 有权
    单相微乳液和原位微乳液用于清洁形成损伤

    公开(公告)号:US20090008091A1

    公开(公告)日:2009-01-08

    申请号:US12146647

    申请日:2008-06-26

    IPC分类号: E21B43/22

    CPC分类号: C09K8/524 C09K8/528 E21B37/08

    摘要: Single phase microemulsions (SPMEs) and in situ-formed microemulsions may be used to clean up and remove non-polar materials from reservoir production zones of oil and gas wells. This clean up occurs by solubilization of the non-polar material into the microemulsion when the treatment fluid contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some small amount of organic phase, contacts the reservoir formation and solubilizes the non-polar material encountered in the porous media. The microemulsions are effective for removing the formation damage caused by non-polar materials which include, but are not necessarily limited to oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof.

    摘要翻译: 单相微乳液(SPME)和原位形成的微乳液可用于从油气井油藏生产区清理和除去非极性物质。 当处理流体接触非极性材料时,通过将非极性材料溶解到微乳液中来进行清洁。 当一种或多种表面活性剂和极性相(例如水或盐水)和最终少量的有机相接触储层形成并​​溶解在多孔介质中遇到的非极性材料时,可以形成原位微乳液。 微乳液对于去除由非极性材料引起的地层损伤是有效的,其包括但不一定限于油基泥浆,合成基泥浆,石蜡,沥青质,乳液,s块及其组合。

    Single phase microemulsions and in situ microemulsions for cleaning formation damage
    2.
    发明授权
    Single phase microemulsions and in situ microemulsions for cleaning formation damage 有权
    单相微乳液和原位微乳液用于清洁地层损伤

    公开(公告)号:US08091646B2

    公开(公告)日:2012-01-10

    申请号:US12146647

    申请日:2008-06-26

    IPC分类号: E21B37/00

    CPC分类号: C09K8/524 C09K8/528 E21B37/08

    摘要: Single phase microemulsions (SPMEs) and in situ-formed microemulsions may be used to clean up and remove non-polar materials from reservoir production zones of oil and gas wells. This clean up occurs by solubilization of the non-polar material into the microemulsion when the treatment fluid contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some small amount of organic phase, contacts the reservoir formation and solubilizes the non-polar material encountered in the porous media. The microemulsions are effective for removing the formation damage caused by non-polar materials which include, but are not necessarily limited to oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof.

    摘要翻译: 单相微乳液(SPME)和原位形成的微乳液可用于从油气井油藏生产区清理和除去非极性物质。 当处理流体接触非极性材料时,通过将非极性材料溶解到微乳液中来进行清洁。 当一种或多种表面活性剂和极性相(例如水或盐水)和最终少量的有机相接触储层形成并​​溶解在多孔介质中遇到的非极性材料时,可以形成原位微乳液。 微乳液对于去除由非极性材料引起的地层损伤是有效的,其包括但不一定限于油基泥浆,合成基泥浆,石蜡,沥青质,乳液,s块及其组合。

    In situ fluid formation for cleaning oil- or synthetic oil-based mud
    3.
    发明授权
    In situ fluid formation for cleaning oil- or synthetic oil-based mud 有权
    用于清洁油或合成油基泥浆的原位流体形成

    公开(公告)号:US08091645B2

    公开(公告)日:2012-01-10

    申请号:US11866486

    申请日:2007-10-03

    IPC分类号: E21B37/08

    摘要: Nanoemulsion, macroemulsions, miniemulsions, microemulsion systems with excess oil or water or both (Winsor I, II 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.

    摘要翻译: 纳米乳液,微乳液,微乳液,具有过量油或水的微乳液系统(Winsor I,II或III相行为)或单相微乳液(Winsor IV)改善了使用OBM在油气藏井眼钻井过程中形成的滤饼的去除。 具有过量油或水或两相或微相乳液的微乳液,纳米乳液,微乳液,微乳液系统从沉积的滤饼中除去油和固体。 在一个非限制性实施方案中,可以原位(井下)形成乳液体系(例如单相微乳液,纳米乳液或其它乳液),而不是预先生产或制备并在井下泵送。 可以减少从内部和外部滤饼沉积物中去除皮肤损伤。

    In Situ Fluid Formation for Cleaning Oil- or Synthetic-Oil-Based Mud
    4.
    发明申请
    In Situ Fluid Formation for Cleaning Oil- or Synthetic-Oil-Based Mud 有权
    用于清洁油或合成油基泥浆的原位液体形成

    公开(公告)号:US20080110618A1

    公开(公告)日:2008-05-15

    申请号:US11866486

    申请日:2007-10-03

    摘要: Nanoemulsion, macroemulsions, miniemulsions, microemulsion systems with excess oil or water or both (Winsor I, II 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.

    摘要翻译: 纳米乳液,微乳液,微乳液,具有过量油或水的微乳液系统(Winsor I,II或III相行为)或单相微乳液(Winsor IV)改善了使用OBM在油气藏井眼钻井过程中形成的滤饼的去除。 具有过量油或水或两相或微相乳液的微乳液,纳米乳液,微乳液,微乳液系统从沉积的滤饼中除去油和固体。 在一个非限制性实施方案中,可以原位(井下)形成乳液体系(例如单相微乳液,纳米乳液或其它乳液),而不是预先生产或制备并在井下泵送。 可以减少从内部和外部滤饼沉积物中去除皮肤损伤。

    Dendritic Surfactants and Extended Surfactants for Drilling Fluid Formulations
    5.
    发明申请
    Dendritic Surfactants and Extended Surfactants for Drilling Fluid Formulations 审中-公开
    树枝状表面活性剂和用于钻井液配方的扩展表面活性剂

    公开(公告)号:US20120241220A1

    公开(公告)日:2012-09-27

    申请号:US13474468

    申请日:2012-05-17

    IPC分类号: C09K8/34 E21B7/00

    CPC分类号: C09K8/34 C09K8/36 E21B37/08

    摘要: Modified surfactants may be added to an oil-based drilling fluid where the modified surfactant is selected from the group consisting of an extended surfactant, a dendritic surfactant, a dendritic extended surfactant, and combinations thereof. These oil-based drilling fluids may be used for drilling a well through a subterranean reservoir, while circulating the oil-based drilling fluid through the wellbore. The oil-based drilling fluid may include at least modified surfactant, at least one non-polar continuous phase, and at least one polar non-continuous phase. The modified surfactant may have propoxylated/ethoxylated spacer arms extensions. The modified surfactant may have intramolecular mixtures containing hydrophilic and lipophilic portions. They attain high solubilization in the oil-based drilling fluid and may be, in some instances, insensitive to temperature making them useful for a wide variety of oil types.

    摘要翻译: 改性表面活性剂可以添加到油基钻井液中,其中改性表面活性剂选自延展表面活性剂,树枝状表面活性剂,树枝状延伸表面活性剂及其组合。 这些油基钻井液可以用于在通过井眼循环油基钻井液的同时通过地下储层钻井。 油基钻井液可以包括至少改性的表面活性剂,至少一种非极性连续相和至少一种极性非连续相。 修饰的表面活性剂可以具有丙氧基化/乙氧基化间隔臂延伸。 改性表面活性剂可以具有含有亲水和亲油部分的分子内混合物。 它们在油基钻井液中获得高溶解性,并且在某些情况下可能对温度不敏感,使得它们可用于多种油类型。

    Mesophase fluids with extended chain surfactants for downhole treatments
    6.
    发明授权
    Mesophase fluids with extended chain surfactants for downhole treatments 有权
    具有延伸链表面活性剂的中间相流体用于井下处理

    公开(公告)号:US08235120B2

    公开(公告)日:2012-08-07

    申请号:US12414888

    申请日:2009-03-31

    IPC分类号: E21B37/00 E21B21/00

    CPC分类号: E21B37/08 C09K8/584

    摘要: Mesophase fluids may be pre-formed or formed in situ and may be used downhole for various treatments including, but not limited to, cleaning up and removing non-polar materials from reservoir production zones, removing wellbore damage, releasing stuck pipe, components in spacers and pills and the like in oil and gas wells. These treatments involve solubilization of the non-polar material into the emulsion when the treatment fluid contacts non-polar materials. These mesophase fluids use extended chain surfactants having propoxylated/ethoxylated spacer arms. The extended chain surfactants are intramolecular mixtures containing hydrophilic and lipophilic portions. They attain high solubilization in the mesophase fluids (e.g. single phase microemulsions), are in some instances insensitive to temperature and are useful for a wide variety of oil types.

    摘要翻译: 中间相流体可以预先形成或原位形成,并且可以在井下用于各种处理,包括但不限于从储层生产区清除和除去非极性材料,去除井筒损坏,释放粘性管,间隔件中的部件 以及石油和天然气井中的药丸等。 当处理流体接触非极性材料时,这些处理包括将非极性材料溶解到乳液中。 这些中间相流体使用具有丙氧基化/乙氧基化间隔臂的延伸链表面活性剂。 延伸链表面活性剂是含有亲水和亲油部分的分子内混合物。 它们在中间相流体(例如单相微乳液)中获得高溶解度,在某些情况下对温度不敏感,并且可用于多种油类型。

    Mesophase Fluids with Extended Chain Surfactants for Downhole Treatments
    7.
    发明申请
    Mesophase Fluids with Extended Chain Surfactants for Downhole Treatments 有权
    具有扩展链表面活性剂的中间相液体用于井下处理

    公开(公告)号:US20090183877A1

    公开(公告)日:2009-07-23

    申请号:US12414888

    申请日:2009-03-31

    IPC分类号: E21B43/27

    CPC分类号: E21B37/08 C09K8/584

    摘要: Mesophase fluids may be pre-formed or formed in situ and may be used downhole for various treatments including, but not limited to, cleaning up and removing non-polar materials from reservoir production zones, removing wellbore damage, releasing stuck pipe, components in spacers and pills and the like in oil and gas wells. These treatments involve solubilization of the non-polar material into the emulsion when the treatment fluid contacts non-polar materials. These mesophase fluids use extended chain surfactants having propoxylated/ethoxylated spacer arms. The extended chain surfactants are intramolecular mixtures containing hydrophilic and lipophilic portions. They attain high solubilization in the mesophase fluids (e.g. single phase microemulsions), are in some instances insensitive to temperature and are useful for a wide variety of oil types.

    摘要翻译: 中间相流体可以预先形成或原位形成,并且可以在井下用于各种处理,包括但不限于从储层生产区清除和除去非极性材料,去除井筒损坏,释放粘性管,间隔件中的部件 以及石油和天然气井中的药丸等。 当处理流体接触非极性材料时,这些处理包括将非极性材料溶解到乳液中。 这些中间相流体使用具有丙氧基化/乙氧基化间隔臂的延伸链表面活性剂。 延伸链表面活性剂是含有亲水和亲油部分的分子内混合物。 它们在中间相流体(例如单相微乳液)中获得高溶解度,在某些情况下对温度不敏感,并且可用于多种油类型。