公开(公告)号：US20120073809A1

公开(公告)日：2012-03-29

申请号：US12891889

申请日：2010-09-28

申请人： Eric Clum ,  Yiyan Chen

发明人： Eric Clum ,  Yiyan Chen

IPC分类号： E21B43/22 ,  E21B43/16

CPC分类号： E21B43/16 ,  C09K8/602 ,  C09K8/68 ,  C09K8/882 ,  C09K8/887 ,  C09K8/90 ,  C09K2208/08 ,  C09K2208/30

摘要： The invention provides a method made of steps of method injecting into a wellbore, a composition comprising an aqueous solution, a viscosifying agent, a degradable material, and sized salt particulates; and allowing viscosity of the composition to increase and form a plug at dynamic reservoir conditions.

摘要翻译： 本发明提供了一种方法，该方法是将井眼注入方法，包含水溶液，增粘剂，可降解材料和大小的盐颗粒的组合物; 并且允许组合物的粘度在动态储存器条件下增加并形成塞子。

公开(公告)号：US20120000641A1

公开(公告)日：2012-01-05

申请号：US12827431

申请日：2010-06-30

申请人： Mohan Panga ,  Jean-Philippe Bedel ,  Yiyan Chen

发明人： Mohan Panga ,  Jean-Philippe Bedel ,  Yiyan Chen

IPC分类号： E21B43/04 ,  C09K8/44

CPC分类号： C09K8/56 ,  C09K8/80 ,  E21B43/04 ,  E21B43/08 ,  E21B43/26 ,  E21B43/267

摘要： High solids content slurry, systems and methods. The slurry comprises a carrier fluid and a solids mixture of first, second, third and fourth particle size distribution (PSD) modes wherein the first PSD mode is at least three times larger than the second PSD mode, which is larger than the third PSD mode, which is larger than the fourth PSD mode, and wherein at least one of the second and third PSD modes is less than 3 times larger than the respective third or fourth PSD mode. The method comprises forming the slurry, positioning a screen in a wellbore and circulating the slurry through the wellbore such that the solids mixture is deposited between the screen and the wellbore. The system comprises a pump to circulate the slurry, a workstring to position the screen and means for converting the slurry to a gravel pack.

摘要翻译： 高固含量浆料，体系和方法。 浆料包括载体流体和第一，第二，第三和第四粒度分布（PSD）模式的固体混合物，其中第一PSD模式比第二PSD模式大至少三倍于大于第三PSD模式 ，其大于第四PSD模式，并且其中第二和第三PSD模式中的至少一个小于相应的第三或第四PSD模式的3倍。 该方法包括形成浆料，将筛网定位在井筒中并使浆料循环通过井孔，使得固体混合物沉积在筛网和井筒之间。 该系统包括用于使浆料循环的泵，用于定位筛网的工作绳和用于将浆料转化成砾石包的装置。

公开(公告)号：US20110152135A1

公开(公告)日：2011-06-23

申请号：US12643522

申请日：2009-12-21

申请人： Yiyan Chen ,  Abbas Mahdi ,  Richard Marcinew ,  Matt Graham ,  Timothy L. Pope

发明人： Yiyan Chen ,  Abbas Mahdi ,  Richard Marcinew ,  Matt Graham ,  Timothy L. Pope

IPC分类号： C09K8/528 ,  C09K8/72 ,  C09K8/70 ,  C09K8/60 ,  C09K8/588 ,  C09K8/74 ,  C23F11/14 ,  C09K8/68

CPC分类号： C23F11/04 ,  C09K8/74 ,  C09K2208/30 ,  C23F11/141

摘要： A method of treating a subterranean formation penetrated by a wellbore involves introducing an acid treatment fluid through the wellbore into the formation. The treatment fluid is formed from a zwitterionic viscoelastic surfactant, an acid in an amount to provide the treatment fluid with an initial pH of ≦0 and a rheology enhancer. The treatment fluid has a high viscosity at the initial pH and a lower viscosity when the pH of the treatment fluid is raised to an intermediate pH of from greater than 0 to about 5.

摘要翻译： 一种处理穿透井筒的地层的方法，包括将酸处理流体通过井筒引入地层。 处理流体由两性离子粘弹性表面活性剂形成，酸的量使得处理流体的初始pH为＆lt; nEE; 0和流变增强剂。 处理液在初始pH下具有高粘度，并且当处理流体的pH升高至大于0至约5的中间pH时，粘度较低。

公开(公告)号：US07741252B2

公开(公告)日：2010-06-22

申请号：US11609137

申请日：2006-12-11

申请人： Yiyan Chen ,  Richard Marcinew ,  Carlos Abad

发明人： Yiyan Chen ,  Richard Marcinew ,  Carlos Abad

IPC分类号： C23F11/14 ,  C09K8/584

CPC分类号： C09K8/74 ,  C09K8/703 ,  C09K2208/30

摘要： An oilfield treatment method is given that uses fluids that contain surfactants used as foamers and/or viscosifiers such that the fluids pass the Alberta Energy and Utilities Board Directive 27 requirements for low toxicity to certain bioluminescent bacteria. Such fluids may be used in oilfield treatments, for example drilling and stimulation, near fresh water aquifers. The surfactants are certain non-ionic surfactants that are not aromatic, or certain amphoteric surfactants (that can be neutral), or certain zwitterionic surfactants, (in which both positive and negative charges are present in a single molecule so that the whole molecule is neutral).

摘要翻译： 给出了一种油田处理方法，其使用含有用作起泡剂和/或增粘剂的表面活性剂的流体，使得流体通过对某些生物发光细菌的低毒性的要求。 这种流体可用于油田处理，例如钻井和刺激，靠近淡水含水层。 表面活性剂是不是芳族的某些非离子表面活性剂，或某些两性表面活性剂（可以是中性的）或某些两性离子表面活性剂（其中单个分子中存在正电荷和负电荷，使得整个分子是中性的 ）。

公开(公告)号：US07469438B2

公开(公告)日：2008-12-30

申请号：US11483503

申请日：2006-07-10

申请人： Yong Li ,  Yuzhong Lei ,  Yiyan Chen

发明人： Yong Li ,  Yuzhong Lei ,  Yiyan Chen

IPC分类号： E01D4/00

CPC分类号： E01D1/005 ,  E01D4/00

摘要： An exemplary bridge includes an arch unit. The arch unit includes a first abutment and a second abutment, a deck extending between the first and second abutments, a pair of asymmetrical arches, and a plurality of suspender members 3 attached between the arches and the deck. The first and second abutments are spaced apart from each other at a predetermined distance. The asymmetrical arches are juxtaposedly arranged between and supported by the first and second abutments. Each of the asymmetrical arches includes a first arch foot portion mounted on the first abutment, a parabolic portion proximate to the first arch foot portion, a catenary portion proximate to the parabolic portion, and a second arch foot portion proximate to the catenary portion mounted on the second abutment.

摘要翻译： 示例性桥梁包括拱形单元。 拱形单元包括第一邻接和第二邻接，在第一和第二邻接部之间延伸的甲板，一对不对称的拱门以及附接在拱门和甲板之间的多个悬挂构件3。 第一和第二接合部以预定距离彼此间隔开。 不对称拱形并排布置在第一和第二基台之间并由第一和第二基台支撑。 每个不对称拱包括安装在第一邻接部上的第一拱脚部分，靠近第一拱脚部分的抛物线部分，靠近抛物线部分的悬链线部分，以及靠近悬链线部分的第二拱形脚部分， 第二个基台。

公开(公告)号：US20080280788A1

公开(公告)日：2008-11-13

申请号：US12116759

申请日：2008-05-07

申请人： Michael D. Parris ,  Andrey Mirakyan ,  Yiyan Chen ,  Carlos Abad

发明人： Michael D. Parris ,  Andrey Mirakyan ,  Yiyan Chen ,  Carlos Abad

IPC分类号： C09K8/68

CPC分类号： C09K8/685 ,  C09K8/887 ,  C09K2208/08

摘要： Methods comprising preparing an aqueous mixture of an anionic polymer, a charge screening surfactant, and a borate crosslinker, wherein the mixture has a conductivity less than 10 mS/cm, injecting the mixture down a wellbore, and gelling the mixture. An embodiment of the aqueous mixture can also include tetramethylammonium chloride as a clay stabilizer and a metal crosslinker such as a complex of zirconium and an amino acid ligand system. An embodiment can effectively provide borate crosslinking of an anionic polymer in a low-ionic-strength fluid system, without sacrificing ultimate gel strength or thermal persistence of the metal crosslinked polymer.

摘要翻译： 方法包括制备阴离子聚合物，电荷筛选表面活性剂和硼酸盐交联剂的水性混合物，其中混合物具有小于10mS / cm的电导率，将混合物向下注入井眼，并使混合物胶凝。 水性混合物的一个实施方案还可以包括作为粘土稳定剂的四甲基氯化铵和诸如锆和氨基酸配体体系的金属交联剂。 一个实施方案可以有效地提供阴离子聚合物在低离子强度流体系统中的硼酸盐交联，而不会牺牲金属交联聚合物的最终凝胶强度或热持久性。

公开(公告)号：US07341980B2

公开(公告)日：2008-03-11

申请号：US10994664

申请日：2004-11-22

申请人： Jesse Lee ,  Yiyan Chen ,  Timothy Pope ,  Eric Hanson ,  Samuel Cozzens ,  Taner Batmaz

发明人： Jesse Lee ,  Yiyan Chen ,  Timothy Pope ,  Eric Hanson ,  Samuel Cozzens ,  Taner Batmaz

IPC分类号： C09K8/584 ,  C09K8/588 ,  E21B21/00

CPC分类号： C09K8/68 ,  C09K8/602 ,  C09K2208/30

摘要： A method for shortening the shear recovery time of zwitterionic viscoelastic surfactant fluids by adding a rheology enhancer having the structure: R-(EO)x(PO)y—R′—OH in which R is an alkyl group that is straight chained or branched, saturated or unsaturated, and contains from 3 to about 18 carbon atoms, x is from 0 to about 14, y is from 0 to about 7, R′ is an alkyl group that contains from 0 to about 14 carbon atoms and is straight chained, branched if having more than 3 carbon atoms, saturated, unsaturated if having more than one carbon atom, the total number of carbon atoms in R plus R′ is from 3 to about 21, and the EO and PO groups, if present, may be in any order. The rheology enhancer also increases fluid viscosity and thermal stability. Preferred surfactants are betaines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.

摘要翻译： 通过添加具有以下结构的流变增强剂来缩短两性离子粘弹性表面活性剂流体的剪切恢复时间的方法：<？in-line-formula description =“In-line Formulas”end =“lead”→> R-（EO） （PO）y-R'-OH <βin-line-formula description =“In-line Formulas”end =“tail”？>其中R是 直链或支链，饱和或不饱和的烷基，含有3至约18个碳原子，x为0至约14，y为0至约7，R'为含0至 约14个碳原子，如果具有多于3个碳原子，则是直链，支链的，如果具有多于一个碳原子是饱和的，不饱和的，R + R'中的总碳原子数为3至约21，EO 和PO组（如果存在）可以是任何顺序。 流变增强剂还增加流体粘度和热稳定性。 优选的表面活性剂是甜菜碱。 这些流体可用于油田处理，例如压裂和砾石填充。

公开(公告)号：US07148185B2

公开(公告)日：2006-12-12

申请号：US10249830

申请日：2003-05-09

申请人： Diankui Fu ,  Yiyan Chen ,  Zhijun Xiao ,  Mathew Samuel ,  Sylvie Daniel

发明人： Diankui Fu ,  Yiyan Chen ,  Zhijun Xiao ,  Mathew Samuel ,  Sylvie Daniel

IPC分类号： C09K8/52 ,  C09K5/58 ,  C09K8/60

CPC分类号： C09K8/06 ,  C09K8/506 ,  C09K8/508 ,  C09K8/52 ,  C09K8/62 ,  C09K8/68 ,  C09K2208/30

摘要： A viscous aqueous high density well treatment fluid composition stable at high temperature containing a surfactant and inorganic salts is described. Methods of preparing the fluid and increasing the stability and viscosity of the fluid are given. The fluid is useful for wellbore cleanout, hydraulic fracturing, gravel packing, completion, acid diversion, lost circulation reduction, well killing, cementing, selective water shutoff, and fracture fluid diversion.

摘要翻译： 描述了含有表面活性剂和无机盐的在高温下稳定的粘稠的高密度水溶液高效液体组合物。 给出了制备流体和提高流体稳定性和粘度的方法。 该流体可用于井筒清理，水力压裂，砾石填充，完井，酸分解，减少循环，排除井，固井，选择性水切断和断裂流体分流。

公开(公告)号：US20060128598A1

公开(公告)日：2006-06-15

申请号：US11249233

申请日：2005-10-13

申请人： Yiyan Chen ,  Carlos Abad

发明人： Yiyan Chen ,  Carlos Abad

IPC分类号： C11D1/10

CPC分类号： C09K8/602 ,  C09K8/68 ,  C09K8/88 ,  C09K2208/30

摘要： A method for shortening the shear recovery time of cationic, zwitterionic, and amphoteric viscoelastic surfactant fluid systems by adding an effective amount of an amphiphilic polymeric rheology enhancer containing at least one portion that is a partially hydrolyzed polyvinyl ester or partially hydrolyzed polyacrylate. The rheology enhancer also increases fluid viscosity and very low rheology enhancer concentration is needed. Preferred surfactants are betaines and quaternary amines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.

摘要翻译： 通过加入有效量的含有至少一部分部分水解的聚乙烯基酯或部分水解的聚丙烯酸酯的两亲性聚合物流变增强剂来缩短阳离子，两性离子和两性粘弹性表面活性剂流体体系的剪切恢复时间的方法。 流变增强剂还增加了流体粘度，并且需要非常低的流变学增强剂浓度。 优选的表面活性剂是甜菜碱和季胺。 这些流体可用于油田处理，例如压裂和砾石填充。

公开(公告)号：US20060111248A1

公开(公告)日：2006-05-25

申请号：US10994664

申请日：2004-11-22

申请人： Jesse Lee ,  Yiyan Chen ,  Timothy Pope ,  Eric Hanson ,  Samuel Cozzens ,  Taner Batmaz

发明人： Jesse Lee ,  Yiyan Chen ,  Timothy Pope ,  Eric Hanson ,  Samuel Cozzens ,  Taner Batmaz

IPC分类号： C09K8/584 ,  C09K3/00

CPC分类号： C09K8/68 ,  C09K8/602 ,  C09K2208/30

摘要： A method for shortening the shear recovery time of zwitterionic viscoelastic surfactant fluids by adding a rheology enhancer having the structure: R-(EO)x(PO)y—R′—OH in which R is an alkyl group that is straight chained or branched, saturated or unsaturated, and contains from 3 to about 18 carbon atoms, x is from 0 to about 14, y is from 0 to about 7, R′ is an alkyl group that contains from 0 to about 14 carbon atoms and is straight chained, branched if having more than 3 carbon atoms, saturated, unsaturated if having more than one carbon atom, the total number of carbon atoms in R plus R′ is from 3 to about 21, and the EO and PO groups, if present, may be in any order. The rheology enhancer also increases fluid viscosity and thermal stability. Preferred surfactants are betaines. The fluids are useful in oilfield treatments, for example fracturing and gravel packing.

摘要翻译： 通过添加具有以下结构的流变增强剂来缩短两性离子粘弹性表面活性剂流体的剪切恢复时间的方法：<？in-line-formula description =“In-line Formulas”end =“lead”→> R-（EO） （PO）y-R'-OH <βin-line-formula description =“In-line Formulas”end =“tail”？>其中R是 直链或支链，饱和或不饱和的烷基，含有3至约18个碳原子，x为0至约14，y为0至约7，R'为含0至 约14个碳原子，如果具有多于3个碳原子，则是直链，支链的，如果具有多于一个碳原子是饱和的，不饱和的，R + R'中的总碳原子数为3至约21，EO 和PO组（如果存在）可以是任何顺序。 流变增强剂还增加流体粘度和热稳定性。 优选的表面活性剂是甜菜碱。 这些流体可用于油田处理，例如压裂和砾石填充。