公开(公告)号：US07625845B2

公开(公告)日：2009-12-01

申请号：US11595295

申请日：2006-11-09

申请人： Xiaolan Wang ,  Qi Qu

发明人： Xiaolan Wang ,  Qi Qu

IPC分类号： C09K8/60 ,  C09K8/68 ,  E21B36/00

CPC分类号： E21B36/003 ,  Y10S507/926

摘要： A thermal insulating fluid contains microspheres of hollow spherical particulates. The presence of the hollow spherical particles improves the thermal insulating properties of the fluid by imparting to the thermal insulating fluid a low heat transfer coefficient. The hollow particulates may be inorganic or organic in nature and include hollow spheres of glass, ceramics and plastics. The thermal insulating fluid is capable of controlling the heat transfer from a production tubing or transfer pipe to one or more surrounding annuli and the environment. In addition to reducing heat transfer in the producing well, heat transfer in the fluid produced from the well is also minimized.

摘要翻译： 绝热流体包含中空球形微粒的微球。 中空球形颗粒的存在通过赋予绝热流体传热系数低而改善了流体的绝热性能。 中空颗粒本质上可以是无机或有机的，并且包括玻璃，陶瓷和塑料的中空球体。 绝热流体能够控制从生产管道或输送管道到一个或多个周围环境和环境的热传递。 除了减少生产井中的热传递之外，从井产生的流体中的传热也最小化。

公开(公告)号：US07395863B2

公开(公告)日：2008-07-08

申请号：US11953645

申请日：2007-12-10

申请人： Xiaolan Wang ,  Qi Qu

发明人： Xiaolan Wang ,  Qi Qu

IPC分类号： E21B43/26 ,  E21B43/27 ,  C09K8/64 ,  C09K8/72

CPC分类号： E21B36/003 ,  C09K8/32 ,  C09K8/64 ,  C09K8/685 ,  C09K8/72 ,  C09K8/887 ,  Y10S166/901 ,  Y10S507/902 ,  Y10S507/903 ,  Y10S507/922 ,  Y10S507/925 ,  Y10S507/926 ,  Y10S507/933

摘要： A well treating composition containing a polysaccharide-based water-superabsorbent material has particularly applicability as a thermal insulating, fracturing or acid stimulation fluid. The water-superabsorbent material is capable of absorbing, at a minimum, its own weight. Particularly effective are biodegradable materials containing guar gum and carrageenan. The composition may further contain a crosslinking agent, brine and/or a viscosifying polymer or a gelling agent. As an oil-based fluid, the crosslinking agent is absorbed onto the water-superabsorbent material and serves to effectively delay crosslinking.

摘要翻译： 含有多糖类水超吸收材料的良好处理组合物作为绝热，压裂或酸刺激液具有特别的适用性。 水超吸收材料能够至少吸收其自身重量。 特别有效的是含有瓜尔胶和角叉菜胶的生物降解材料。 组合物还可以含有交联剂，盐水和/或增粘聚合物或胶凝剂。 作为油基流体，交联剂被吸收到水超吸收剂材料上并用于有效地延迟交联。

公开(公告)号：US07220709B1

公开(公告)日：2007-05-22

申请号：US10100778

申请日：2002-03-19

申请人： Qi Qu ,  Scott McCarthy ,  Daniel Patrick Vollmer

发明人： Qi Qu ,  Scott McCarthy ,  Daniel Patrick Vollmer

IPC分类号： C09K8/58

CPC分类号： C09K8/72 ,  C09K8/74 ,  C09K2208/30

摘要： A process for stimulating a formation is disclosed wherein a diverting fluid is used to divert an acid treatment package from a high permeability or damaged portion of a formation to a low permeability or undamaged portion of a formation. The fluid preferably forms vesicles.

摘要翻译： 公开了一种用于刺激地层的方法，其中使用转向流体将酸处理包从地层的高渗透性或损坏部分转移到地层的低渗透性或未损伤部分。 流体优选形成囊泡。

公开(公告)号：US20070087940A1

公开(公告)日：2007-04-19

申请号：US11581539

申请日：2006-10-16

申请人： Qi Qu ,  David Alleman

发明人： Qi Qu ,  David Alleman

IPC分类号： C09K8/00 ,  E21B43/00

CPC分类号： C09K8/74 ,  C09K8/601 ,  C09K8/602 ,  C09K8/76 ,  C09K2208/26 ,  C09K2208/30 ,  Y10S507/922

摘要： A process for enhancing the productivity of a formation consists of introducing into the formation a viscoelastic fluid which contains at least one surfactant, at least one quaternary amine polyelectrolyte, water, and a non-aqueous solvent. The surfactant forms aggregation structures or vesicles. The fluid, which significantly enhances fluid viscosity and thermal stability, is particularly effective as a diverting fluid to divert an acid treatment package from a high permeability or undamaged portion of a formation to a low permeability or damaged portion of a formation as well as a fracturing fluid. In addition, the fluid is useful for sand control completion.

摘要翻译： 一种用于提高地层生产率的方法包括向地层中引入含有至少一种表面活性剂，至少一种季胺聚电解质，水和非水溶剂的粘弹性流体。 表面活性剂形成聚集结构或囊泡。 显着增强流体粘度和热稳定性的流体作为将酸处理包从地层的高渗透性或未损坏部分转移到地层的低渗透性或损坏部分以及压裂的转向流体是特别有效的 流体。 此外，该流体可用于防砂完成。

公开(公告)号：US07151076B2

公开(公告)日：2006-12-19

申请号：US10961658

申请日：2004-10-08

申请人： Qi Qu ,  Xiaolan Wang

发明人： Qi Qu ,  Xiaolan Wang

IPC分类号： C09K8/60 ,  C09K8/66

CPC分类号： C09K8/685 ,  C09K8/68 ,  Y10S507/903 ,  Y10S507/921 ,  Y10S507/922

摘要： A low residue well treatment fluid comprises: an aqueous solvent; a gelling agent comprising one or more modified polysaccharides, the modified polysaccharides having hydrophilic groups; and a crosslinking composition. The fluid may optionally further comprise a gel breaker, a buffer and/or a proppant. The fluids generate no or minimal residue upon being broken, and are particularly useful in well fracturing operations.

摘要翻译： 低残留物处理流体包括：水性溶剂; 包含一种或多种改性多糖的胶凝剂，所述改性多糖具有亲水基团; 和交联组合物。 流体可以任选地进一步包含凝胶破碎剂，缓冲剂和/或支撑剂。 流体在破碎时不产生或极少的残留物，并且在压裂作业中特别有用。

公开(公告)号：US07144512B2

公开(公告)日：2006-12-05

申请号：US10623044

申请日：2003-07-18

申请人： Qi Qu ,  Paul H. Javora ,  Joel L. Boles ,  Sandra L. Berry

发明人： Qi Qu ,  Paul H. Javora ,  Joel L. Boles ,  Sandra L. Berry

IPC分类号： B01D15/00

CPC分类号： E21B21/068 ,  B01D19/04 ,  B01J45/00 ,  Y10S210/912

摘要： A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and non-zinc heavy metals; and (ii) calcium and zinc. The chelant contains a functional group selected from the group —CO2H or —PO(OH)R20 or a salt or ester thereof, —C(O)—, —OE, —SE, —N═C(R2)R3, EO—N═C(R2)R3, —N(R2)R3, and —N(C(O)R1)R2 group optionally substituted with a —COOH or —PO(OH)R20 or a salt or ester thereof, —SE or —OE group, wherein R2 and R3 are independently selected from E or forms, with nitrogen, phosphorous, oxygen or sulfur, a heterocyclic ring; E is R1 or —H; R1 is a C1–C30 alkyl or aralkyl group or a derivative thereof and R20 is —OH or R1.

摘要翻译： 通过使用能够区分（i）铁和非锌重金属的有机螯合剂回收完井盐水溶液的方法; 和（ii）钙和锌。 螯合剂含有选自-CO 2 H或-PO（OH）R 20的官能团或其盐或酯，-C（O） - ， -OE，-SE，-NC（R 2）R 3，EO-NC（R 2）R 3， -N（R 2）R 3，和-N（C（O）R 1）R 2， 任选被-COOH或-PO（OH）R 20或其盐或酯取代的-SE或-OE基团，其中R 2和R 3， 独立地选自E或其形式，具有氮，磷，氧或硫，杂环; E是R 1或-H; R 1是C 1 -C 30烷基或芳烷基或其衍生物，R 20是 - OH或R 1。

公开(公告)号：US20060131536A1

公开(公告)日：2006-06-22

申请号：US11015928

申请日：2004-12-17

申请人： Qi Qu ,  Xiaolan Wang

发明人： Qi Qu ,  Xiaolan Wang

IPC分类号： E04B1/74

CPC分类号： F16L59/00

摘要： Unwanted heat loss from production tubing or uncontrolled heat transfer to outer annuli is inhibited by introduction into the annuli a thermal insulating packer fluid or a riser fluid containing a zwitterionic surfactant, an alcohol and a brine. The viscosity of the composition is sufficient to reduce the convection flow velocity within the annulus. The invention has particular applicability with high density brines.

摘要翻译： 通过将隔热封隔器流体或含有两性离子表面活性剂，醇和盐水的立管流体引入到环境中来抑制来自生产管道的不期望的热损失或不受控制的热传递到外部环境。 组合物的粘度足以降低环形空间内的对流流速。 本发明特别适用于高密度盐水。

公开(公告)号：US20060042796A1

公开(公告)日：2006-03-02

申请号：US10932965

申请日：2004-09-02

申请人： Qi Qu ,  Richard Stevens ,  David Alleman

发明人： Qi Qu ,  Richard Stevens ,  David Alleman

IPC分类号： E21B37/06

CPC分类号： C09K8/524 ,  C09K8/52 ,  Y10S507/928 ,  Y10S507/93 ,  Y10S507/931

摘要： Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of particular applicability in the displacement of oil base drilling muds and/or residues from such muds from producing wells. The water-in-oil emulsions may optionally contain a dispersing agent as well as a surfactant.

摘要翻译： 流体生产井可以用油包水乳液处理，以去除或抑制不想要的固体颗粒，包括管道涂料，沥青质和石蜡。 这种乳液特别适用于油井钻井泥浆和/或来自生产井的这种泥浆的残留物的置换。 油包水乳液可以任选地含有分散剂以及表面活性剂。

公开(公告)号：US20050227875A1

公开(公告)日：2005-10-13

申请号：US11145281

申请日：2005-06-03

申请人： Paul Javora ,  Qi Qu

发明人： Paul Javora ,  Qi Qu

IPC分类号： E21B21/06 ,  E21B43/00

CPC分类号： E21B21/068 ,  B01D19/04 ,  B01J45/00 ,  C02F1/28 ,  C02F1/66 ,  C02F1/683 ,  C02F1/72 ,  C02F9/00 ,  C02F2101/20 ,  C02F2103/08 ,  Y10S210/912

摘要： A method of reclaiming a well completion brine solution by using an organic chelant that is capable of discriminating between (i) iron and/or non-zinc heavy metals; and (ii) calcium and zinc. The chelant is of the formula: and may be either a neutral compound, a corresponding salt, or a corresponding quaternary salt, wherein: D is F-A (Y3)u(Y4)v; R is independently selected from Cp or CpC(O); Cp is a C1-C36 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; each A is independently selected from —N and —P; Y1 is independently selected from J, —[(F)-A(J)]wY6 and R; J, R1, Y2, Y3, Y4, Y5 and Y6 are independently selected from the group consisting of —H, R, —(F)nCO2Z and —(CH2)nPO(OZ)2; each F is independently selected from a C1-C12 hydrocarbyl group, optionally substituted with one or more substituents selected the group consisting of halogen, hydroxyl, sulfate, CH2CO2Z or —(CH2)nPO(OZ)2 groups; Z is —H or a balanced counterion of an alkali or alkaline earth metal or NH4+; m is 0 to 7; n is 1 to 7; r+s+t is 1 or 2; u+v is 1 or 2; and w is 0 to 7 provided when m is 0, no more than one of R1, Y1, Y2 and Y5 can be —H.

公开(公告)号：US20050077044A1

公开(公告)日：2005-04-14

申请号：US10961658

申请日：2004-10-08

申请人： Qi Qu ,  Xiaolan Wang

发明人： Qi Qu ,  Xiaolan Wang

IPC分类号： C09K8/68 ,  E21B43/27

CPC分类号： C09K8/685 ,  C09K8/68 ,  Y10S507/903 ,  Y10S507/921 ,  Y10S507/922

摘要： A low residue well treatment fluid comprises: an aqueous solvent; a gelling agent comprising one or more modified polysaccharides, the modified polysaccharides having hydrophilic groups; and a crosslinking composition. The fluid may optionally further comprise a gel breaker, a buffer and/or a proppant. The fluids generate no or minimal residue upon being broken, and are particularly useful in well fracturing operations.

摘要翻译： 低残留物处理流体包括：水性溶剂; 包含一种或多种改性多糖的胶凝剂，所述改性多糖具有亲水基团; 和交联组合物。 流体可以任选地进一步包含凝胶破碎剂，缓冲剂和/或支撑剂。 流体在破碎时不产生或极少的残留物，并且在压裂作业中特别有用。