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    Microemulsion or in-situ microemulsion for releasing stuck pipe
    5.
    发明授权
    Microemulsion or in-situ microemulsion for releasing stuck pipe 失效
    用于释放卡通管的微乳液或原位微乳液

    公开(公告)号：US08091644B2

    公开(公告)日：2012-01-10

    申请号：US12203306

    申请日：2008-09-03

    申请人： David E. Clark ,  Lirio Quintero ,  Thomas A. Jones ,  Chad F. Christian ,  Alexander McKellar

    发明人： David E. Clark ,  Lirio Quintero ,  Thomas A. Jones ,  Chad F. Christian ,  Alexander McKellar

    IPC分类号： E21B37/08

    CPC分类号： E21B31/00 ,  C09K8/52 ,  C09K2208/02

    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. Such filter cakes and their particles can contact, impact and affect the movement of the drill string undesirably resulting in a “stuck pipe” condition. The macroemulsion, nanoemulsion, miniemulsion, microemulsion systems with excess oil or water or both or single phase microemulsion removes oil and solids from the filter cake, thereby releasing the drill string from its stuck condition. In one non-limiting embodiment, the emulsion system may be formed in situ (downhole) rather than produced or prepared in advance and pumped downhole.

    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。 这种滤饼和它们的颗粒可以接触，冲击并影响钻柱的移动，从而导致“卡止管”状况。 具有多余油或水或两相或微相乳液的微乳液，纳米乳液，微乳液，微乳液系统从滤饼中除去油和固体，从而将钻柱从其卡住状态释放出来。 在一个非限制性实施方案中，乳液体系可以在现场（井下）形成，而不是预先生产或制备并在井下泵送。

    Microemulsion or In-Situ Microemulsion for Releasing Stuck Pipe
    6.
    发明申请
    Microemulsion or In-Situ Microemulsion for Releasing Stuck Pipe 失效
    微乳液或原位微乳液释放堵塞管

    公开(公告)号：US20080314592A1

    公开(公告)日：2008-12-25

    申请号：US12203306

    申请日：2008-09-03

    申请人： David E. Clark ,  Lirio Quintero ,  Thomas A. Jones ,  Chad F. Christian ,  Alexander McKellar

    发明人： David E. Clark ,  Lirio Quintero ,  Thomas A. Jones ,  Chad F. Christian ,  Alexander McKellar

    IPC分类号： E21B31/03

    CPC分类号： E21B31/00 ,  C09K8/52 ,  C09K2208/02

    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. Such filter cakes and their particles can contact, impact and affect the movement of the drill string undesirably resulting in a “stuck pipe” condition. The macroemulsion, nanoemulsion, miniemulsion, microemulsion systems with excess oil or water or both or single phase microemulsion removes oil and solids from the filter cake, thereby releasing the drill string from its stuck condition. In one non-limiting embodiment, the emulsion system may be formed in situ (downhole) rather than produced or prepared in advance and pumped downhole.

    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。 这种滤饼和它们的颗粒可以接触，冲击并影响钻柱的移动，从而导致“卡止管”状况。 具有多余油或水或两相或微相乳液的微乳液，纳米乳液，微乳液，微乳液系统从滤饼中除去油和固体，从而将钻柱从其卡住状态释放出来。 在一个非限制性实施方案中，乳液体系可以在现场（井下）形成，而不是预先生产或制备并在井下泵送。

    Spotting fluid for differential sticking
    7.
    发明申请
    Spotting fluid for differential sticking 有权
    检测流体用于差别粘贴

    公开(公告)号：US20040072697A1

    公开(公告)日：2004-04-15

    申请号：US10680951

    申请日：2003-10-08

    发明人： James D. Kercheville ,  Kenneth W. Pober

    IPC分类号： C09K007/02

    CPC分类号： E21B31/03 ,  C09K8/02 ,  C09K8/36 ,  C09K2208/02 ,  Y10S507/94

    摘要： A new composition for a spotting fluid and a method of using such spotting fluid for freeing differential stuck pipe in a subterranean well drilling operation is disclosed. The composition comprises an invert water-in-oil emulsion comprising iso-butyl oleate as its external phase and glycerin as the internal phase. In an altemative embodiment, calcium chloride and water may be substituted for glycerin.

    摘要翻译： 公开了一种用于点样液的新组合物和在地下钻井操作中使用这种点样流体释放差分卡管的方法。 该组合物包含一种包含油酸异丁酯作为其外相的反相油包水乳液和作为内相的甘油。 在替代实施方案中，氯化钙和水可以代替甘油。

    Fluid and method for releasing tubular elements stuck in a well
    8.
    发明授权
    Fluid and method for releasing tubular elements stuck in a well 失效
    用于释放粘在井中的管状元件的流体和方法

    公开(公告)号：US06537951B1

    公开(公告)日：2003-03-25

    申请号：US09600481

    申请日：2000-09-27

    申请人： Jean-François Argillier ,  André Demoulin ,  Annie Audibert-Hayet ,  Michel Janssen

    发明人： Jean-François Argillier ,  André Demoulin ,  Annie Audibert-Hayet ,  Michel Janssen

    IPC分类号： C09K700

    CPC分类号： E21B31/03 ,  C09K8/02 ,  C09K8/34 ,  C09K2208/02 ,  Y10S507/94

    摘要： The present invention relates to a well fluid for releasing tubular elements stuck in the well. The fluid comprises a part A consisting of one or more esters obtained by reaction of a linear or branched monocarboxylic acid (A.1) having between 8 and 24 carbon atoms and a linear or branched polyol (A.2) having between 2 and 20 carbon atoms, a part B consisting of one or more linear or branched monocarboxylic acids having between 8 and 24 carbon atoms, where the carboxylic acid (A.1 and part B) is a mixture of at least 80% carboxylic acids having between 1 and 3 insaturations, and a part C consisting of a different ester or olefins, the quantity of part C is determined in relation to the other components in such a way that the viscosity of the fluid is lower than 40 mPa·s at 40° C. The invention also relates to a method for releasing drillpipes stuck in a well.

    摘要翻译： 本发明涉及用于释放卡在井中的管状元件的井液。 流体包含由一种或多种由具有8至24个碳原子的直链或支链一元羧酸（A.1）与直链或支链多元醇 碳原子，部分B由一个或多个具有8至24个碳原子的直链或支链单羧酸组成，其中羧酸（A.1和B部分）是至少80％的具有1和 3不饱和度和由不同酯或烯烃组成的部分C，部分C的量相对于其它组分的确定，使得在40℃下流体的粘度低于40mPa.s 本发明还涉及一种用于释放卡在井中的钻杆的方法。

    Aphron-containing well drilling and servicing fluids of enhanced stability
    10.
    发明授权
    Aphron-containing well drilling and servicing fluids of enhanced stability 有权
    含Aphron的钻井和维修液具有更好的稳定性

    公开(公告)号：US06422326B1

    公开(公告)日：2002-07-23

    申请号：US09591008

    申请日：2000-06-09

    申请人： Tommy F. Brookey ,  Roy F. House

    发明人： Tommy F. Brookey ,  Roy F. House

    IPC分类号： C09K702

    CPC分类号： E21B21/00 ,  C09K8/08 ,  C09K8/206 ,  C09K8/5758 ,  C09K2208/02 ,  E21B31/03

    摘要： The invention provides a method and fluid for drilling or servicing a well in a subterranean formation, particularly containing lost circulation zones or depleted, low pressure reservoirs. A method of decreasing the density of the fluid circulated in a borehole, decreasing the invasion of fluid into formations contacted by the fluid, or decreasing the lost circulation potential of the fluid is provided by using as the fluid an aqueous liquid having dispersed therein a polymer which increases the low shear rate viscosity of the fluid to the extent that the shear thinning index of the fluid is at least about 10, a surfactant, and aphrons, wherein the aphrons are preferably generated by the turbulence and pressure drop as the fluid exits the drill bit in the vicinity of the formation, the fluid having a low shear rate viscosity of at least 40,000 centipoise. The fluid additionally contains an oligosaccharide mixture composed of pentosans and/or hexosans containing from one to about 10 combined sugar units selected from the group consisting of arabinose, mannose, galactose, glucose, xylose, cellobiose, and mixtures thereof Preferably the oligosaccharide mixture is the water soluble portion of thermally hydrolyzed lignocellulose.

    摘要翻译： 本发明提供了一种用于在地下地层中钻井或维修井的方法和流体，特别是含有失水循环区或耗尽的低压储层。 通过使用在其中分散有聚合物的水性液体作为流体来提供减少在钻孔中循环的流体密度的方法，减少流体侵入流体接触的结构，或降低流体的流失能力 其将流体的低剪切速率粘度提高到流体的剪切稀化指数至少约为10的程度，表面活性剂和香料，其中，如果流体离开该流体，则优选地由湍流和压降产生 在地层附近的钻头，流体具有至少40,000厘泊的低剪切速率粘度。 该流体还含有一种寡聚糖混合物，它由戊糖和/或己糖体组成，它们含有选自阿拉伯糖，甘露糖，半乳糖，葡萄糖，木糖，纤维二糖及其混合物的一至约十个组合糖单元。优选地，寡糖混合物是 水解木质纤维素的水溶性部分。