公开(公告)号：US20060079405A1

公开(公告)日：2006-04-13

申请号：US10530793

申请日：2004-10-08

申请人： James Dobson ,  Kim Tresco ,  Jorge Fernandez ,  Bradley Todd ,  Trinidad Munoz

发明人： James Dobson ,  Kim Tresco ,  Jorge Fernandez ,  Bradley Todd ,  Trinidad Munoz

IPC分类号： C09K8/08 ,  E21B43/00

CPC分类号： C09K8/08 ,  C09K2208/18

摘要： The invention provides well drilling and servicing fluids, and methods of drilling, completing, or working over a well therewith, preferred fluids comprise an aqueous liquid, a water soluble polymer viscosifier (preferably xanthan gum), a polymeric fluid loss control additive (preferably a partially depolymerized partially crosslinked hydroxyalkyl ether derivative of starch or a hydroxyalkyl ether derivative of a partially crosslinked and partially depolymerized starch), and as a bridging agent a particulate magnesia that has an Activity Index greater than about 800 seconds, preferably from about 800 seconds to about 3000 seconds.

摘要翻译： 本发明提供了良好的钻井和维修流体，以及钻井，完井或在其上工作的方法，优选的流体包括水性液体，水溶性聚合物增粘剂（优选黄原胶），聚合物流体损失控制添加剂 部分解聚的部分交联的羟烷基醚衍生物或部分交联和部分解聚的淀粉的羟烷基醚衍生物）和作为桥连剂的活性指数大于约800秒，优选约800秒至约 3000秒。

公开(公告)号：US20060079406A1

公开(公告)日：2006-04-13

申请号：US11011659

申请日：2004-12-14

申请人： James Dobson ,  Kim Tresco ,  Jorge Fernandez

发明人： James Dobson ,  Kim Tresco ,  Jorge Fernandez

IPC分类号： C09K8/08 ,  E21B43/00

CPC分类号： C09K8/10 ,  C09K8/08 ,  C09K2208/18

摘要： The invention provides well drilling and servicing fluids, and methods of drilling, completing, or working over a well therewith, preferred fluids comprise an aqueous liquid, a water soluble polymer viscosifier (preferably xanthan gum), a polymeric fluid loss control additive (preferably a partially depolymerized partially crosslinked hydroxyalkyl ether derivative of starch or a hydroxyalkyl ether derivative of a partially crosslinked and partially depolymerized starch), a bridging agent comprising a particulate calcined magnesia that has an Activity Index greater than about 800 seconds, and an additive selected from the group consisting of citric acid, alkali metal salts of citric acid, ammonium citrate, and mixtures thereof in an amount sufficient to increase the low shear rate viscosity of the fluids, preferably from about 0.05-5 ppb, most preferably from about 0.15-3 ppb. The invention further provides a method of increasing the low shear rate viscosity of fluids which contain a water soluble polymer and a calcined magnesia bridging agent which has an Activity Index greater than about 800 seconds.

摘要翻译： 本发明提供了良好的钻井和维修流体，以及钻井，完井或在其上工作的方法，优选的流体包括水性液体，水溶性聚合物增粘剂（优选黄原胶），聚合物流体损失控制添加剂 部分解聚的部分交联的羟烷基醚衍生物或部分交联和部分解聚的淀粉的羟烷基醚衍生物），包含活性指数大于约800秒的颗粒状煅烧氧化镁的桥连剂和选自下组的添加剂 由柠檬酸，柠檬酸的碱金属盐，柠檬酸铵及其混合物组成，其量足以增加流体的低剪切速率粘度，优选约0.05-5ppb，最优选约0.15-3ppb。 本发明还提供了一种增加含有水溶性聚合物和煅烧氧化镁桥接剂的流体的低剪切速率粘度的方法，其具有大于约800秒的活性指数。

公开(公告)号：US20050003966A1

公开(公告)日：2005-01-06

申请号：US10901822

申请日：2004-07-29

申请人： James Dobson ,  Kim Tresco ,  Jorge Fernandez

发明人： James Dobson ,  Kim Tresco ,  Jorge Fernandez

IPC分类号： C09K7/02

CPC分类号： C09K8/08 ,  C09K2208/18

摘要： The invention provides well drilling and servicing fluids, and methods of drilling, completing, or working over a well therewith, preferred fluids comprise an aqueous liquid, a water soluble polymer viscosifier (preferably xanthan gum), a polymeric fluid loss control additive (preferably a partially depolymerized partially crosslinked hydroxyalkyl ether derivative of starch or a hydroxyalkyl ether derivative of a partially crosslinked and partially depolymerized starch), a bridging agent comprising a particulate calcined magnesia that has an Activity Index greater than about 800 seconds, and citric acid in an amount sufficient to increase the low shear rate viscosity of the fluids. The invention further provides a method of increasing the low shear rate viscosity of fluids which contain a water soluble polymer and a calcined magnesia bridging agent which has an Activity Index greater than about 800 seconds.

摘要翻译： 本发明提供了良好的钻井和维修流体，以及钻井，完井或在其上工作的方法，优选的流体包括水性液体，水溶性聚合物增粘剂（优选黄原胶），聚合物流体损失控制添加剂 部分解聚的部分交联的羟烷基醚衍生物或部分交联和部分解聚的淀粉的羟烷基醚衍生物），包含活性指数大于约800秒的颗粒状煅烧氧化镁的桥连剂和足够量的柠檬酸 以增加流体的低剪切速率粘度。 本发明还提供了一种增加含有水溶性聚合物和煅烧氧化镁桥接剂的流体的低剪切速率粘度的方法，其具有大于约800秒的活性指数。

公开(公告)号：US20060148654A1

公开(公告)日：2006-07-06

申请号：US11305602

申请日：2005-12-16

申请人： James Dobson ,  Jorge Fernandez ,  Kim Tresco ,  Abmel Perez

发明人： James Dobson ,  Jorge Fernandez ,  Kim Tresco ,  Abmel Perez

IPC分类号： C09K8/08

CPC分类号： C09K8/34 ,  C09K8/32 ,  C09K2208/18

摘要： The invention discloses a compounded hydrocarbon oil which comprises a base hydrocarbon oil, preferably a mixture of paraffinic hydrocarbons, propylene carbonate, and a liquid fatty acid containing at least 12 carbon atoms per molecule, preferably tall oil fatty acid. The volume ratio of propylene carbonate to liquid fatty acid is from about 3.5 to 1 to about 7 to 1. Preferably the concentration of propylene carbonate is from about 0.002 gal/gal oil to about 0.0057 gal/gal oil and the concentration of the liquid fatty acid is from about 0.0003 gal/gal oil to about 0.0015 gal/gal oil. The invention further comprises a method of compounding the compounded hydrocarbon oil and an oil base drilling fluid prepared from the compounded hydrocarbon oil. Preferably the compounded hydrocarbon oil is characterized by an increase in the low shear rate viscosity of the oil of at least 5,000 centipoise or mixing 7.5 lb/bbl of an organoclay therein.

摘要翻译： 本发明公开了一种复合烃油，其包含基础烃油，优选链烷烃，碳酸亚丙酯和每分子含有至少12个碳原子的液体脂肪酸的混合物，优选妥尔油脂肪酸。 碳酸丙烯酯与液体脂肪酸的体积比为约3.5至1至约7:1。优选碳酸亚丙酯的浓度为约0.002gal / gal油至约0.0057gal / gal油，并且液体脂肪酸的浓度 酸为约0.0003加仑/加仑油至约0.0015加仑/加仑油。 本发明还包括将复合烃油和由复合烃油制备的油基钻井液混合的方法。 优选地，复合烃油的特征在于油的低剪切速率粘度增加至少5000厘泊或者混合7.5lb / bbb的有机粘土。

公开(公告)号：US20060116295A1

公开(公告)日：2006-06-01

申请号：US11268390

申请日：2005-11-07

申请人： James Dobson ,  Kim Tresco

发明人： James Dobson ,  Kim Tresco

IPC分类号： C09K8/04 ,  C09K3/00

CPC分类号： C09K8/512 ,  C09K8/887

摘要： There is disclosed a method of delaying the setting time of aqueous lost circulation control pills. The aqueous lost circulation control pills contain a crosslinkable polymer viscosifier, one or more water retention additives, a crosslinking agent, a pH control agent, and a crosslink time regulator. The method comprises utilizing as the crosslink time regulator encapsulated sodium chloride. The preferred crosslinkable polymer is xanthan gum. The preferred water retention additives are pregelatinized starch and a polyanionic cellulose derivative. The preferred crosslinking agent is a hydrated borate. The preferred pH control agent is magnesium oxide. Preferably the sodium chloride is encapsulated with a urethane coating.

摘要翻译： 公开了一种延迟水分流失控制药片的凝固时间的方法。 含水失水循环控制丸含有可交联聚合物增粘剂，一种或多种保水添加剂，交联剂，pH控制剂和交联时间调节剂。 该方法包括利用包封氯化钠的交联时间调节剂。 优选的可交联聚合物是黄原胶。 优选的保水添加剂是预胶化淀粉和聚阴离子纤维素衍生物。 优选的交联剂是水合硼酸盐。 优选的pH调节剂是氧化镁。 氯化钠优选用聚氨酯涂层包封。