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1. 发明授权

US08316941B2 Method for single-stage treatment of siliceous subterranean formations 有权
公开(公告)号：US08316941B2
公开(公告)日：2012-11-27
申请号：US12053875
申请日：2008-03-24
申请人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte , Michael J. Fuller
发明人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte , Michael J. Fuller
IPC分类号： E21B43/28
CPC分类号： C09K8/74
摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

2. 发明授权

US08312929B2 Method for single-stage treatment of siliceous subterranean formations 有权
标题翻译：硅质地层单层处理方法
公开(公告)号：US08312929B2
公开(公告)日：2012-11-20
申请号：US12019394
申请日：2008-01-24
申请人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
发明人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
IPC分类号： E21B43/28
CPC分类号： C09K8/74
摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.
摘要翻译：在处理由井眼渗透的含砂岩地层的方法中，形成包含基本上可溶于水性流体的含有布朗斯台德酸，氟化氢源及其有机酸或其盐的含水流体的处理流体。处理液含有少于约2％的流体重量的氟化物（F-），和流体重量的2％或更少的钠（Na +）。在引入处理流体之前，将处理流体作为单阶段通过井筒引入地层，而不将酸含量的流体预吹入地层中。

3. 发明申请

US20090192057A1 Method for Single-Stage Treatment of Siliceous Subterranean Formations 有权
标题翻译：硅酸盐地层单阶段处理方法
公开(公告)号：US20090192057A1
公开(公告)日：2009-07-30
申请号：US12053875
申请日：2008-03-24
申请人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte , Michael Fuller
发明人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte , Michael Fuller
IPC分类号： C09K8/86
CPC分类号： C09K8/74
摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.
摘要翻译：在处理由井眼渗透的含砂岩地层的方法中，形成包含基本上可溶于水性流体的含有布朗斯台德酸，氟化氢源及其有机酸或其盐的含水流体的处理流体。处理液含有少于约2％的流体重量的氟化物（F-），和流体重量的2％或更少的钠（Na +）。在引入处理流体之前，将处理流体作为单阶段通过井筒引入地层，而不将酸含量的流体预吹入地层中。

4. 发明申请

US20090192054A1 Method for Single-Stage Treatment of Siliceous Subterranean Formations 有权
公开(公告)号：US20090192054A1
公开(公告)日：2009-07-30
申请号：US12019394
申请日：2008-01-24
申请人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
发明人： Wayne W. Frenier , Diankui Fu , Stephen Nigel Davies , Murtaza Ziauddin , Zhijun Xiao , Bruno Lecerf , Helene Bulte
IPC分类号： C09K8/60
CPC分类号： C09K8/74
摘要： In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

5. 发明授权

US06279655B1 Thixotropic materials 有权
标题翻译：触变材料
公开(公告)号：US06279655B1
公开(公告)日：2001-08-28
申请号：US09527911
申请日：2000-03-17
申请人： Demosthenis Georgeou Pafitis , Stephen Nigel Davies , Geoffrey Colin Maitland
发明人： Demosthenis Georgeou Pafitis , Stephen Nigel Davies , Geoffrey Colin Maitland
IPC分类号： E21B3314
CPC分类号： C04B28/00 , C04B14/106 , C04B2103/0085 , C04B2201/10 , C09K8/46 , E21B33/13 , C04B2103/20
摘要： A settable thixotropic material comprises a thixotrope and a settable substance, the material being capable of gelling reversibly in a gelling time of less than 60 seconds. The thixotrope conveniently comprises a fine grained clay, especially smectite clays, e.g. hectorites. It is preferred to use synthetic smectite type clay colloids, and goods results have been obtained with the synthetic clay known as Laponite RDS. The settable material conveniently comprises cement, particularly Portland cement. The thixotropic material finds use generally in oilwell applications, e.g. to plug lost circulation zones, to repair damaged or corroded casing, as grouts, and to limit annular gas migration. The material also finds particular application in techniques for completion of horizontal wells completed with slotted or pre-drilled liners.
摘要翻译：可设定的触变材料包括触变剂和可固化物质，该材料能够在少于60秒的胶凝时间内可逆地凝胶化。触变剂方便地包括细颗粒粘土，特别是蒙脱石粘土，例如。锂蒙脱石优选使用合成蒙脱石型粘土胶体，并且用合成粘土（称为Laponite RDS）获得商品结果。可固化材料方便地包括水泥，特别是波特兰水泥。触变材料通常用于油井应用，例如，堵塞流失区，修复损坏或腐蚀的套管，作为灌浆，并限制环形气体迁移。该材料还特别适用于完成带槽或预钻孔衬管的水平井完井技术。

6. 发明申请

US20080289408A1 METHODS AND SYSTEMS FOR INVESTIGATING DOWNHOLE CONDITIONS 失效
标题翻译：调查倒塌条件的方法和系统
公开(公告)号：US20080289408A1
公开(公告)日：2008-11-27
申请号：US11751405
申请日：2007-05-21
申请人： Sarmad Adnan , Stephen Nigel Davies , Jerome Maniere , Christopher Lenn
发明人： Sarmad Adnan , Stephen Nigel Davies , Jerome Maniere , Christopher Lenn
IPC分类号： E21B47/06 , E21B33/04 , G01V1/40 , G02B6/02 , G02B6/44
CPC分类号： E21B47/065 , E21B43/14 , E21B43/16 , E21B47/1005 , E21B47/123
摘要： Methods and systems for investigating downhole conditions are described. One method comprises inserting a tubular into a wellbore, the tubular comprising a tubular section having upper and lower fluid injection ports, and having a thermally insulated fiber optic cable section positioned inside the tubular extending to the upper fluid injection port, and a non-insulated fiber optic cable section positioned outside of the tubular section and extending at least between the upper and lower fluid injection ports; positioning the tubular section having upper and lower fluid injection ports near a suspected thief or pay zone; injecting a fluid through the upper fluid injection port; determining a first differential temperature profile between the upper and lower fluid injection ports; injecting a fluid through the lower fluid injection port; and determining a second differential temperature profile at least between the upper and lower fluid injection ports.
摘要翻译：描述了用于调查井下条件的方法和系统。一种方法包括将管状物插入井眼中，该管状物包括具有上部和下部流体注入口的管状部分，并且具有定位在延伸至上部流体注入口的管状物内部的绝热光缆部分，以及非绝缘光纤电缆部分位于管状部分的外侧，至少在上部和下部流体注入口之间延伸; 将具有上和下流体注射口的管状部分定位在可疑小偷或付费区附近; 通过上流体注入口注入流体; 确定上流体喷射口和下流体喷射口之间的第一差分温度分布; 通过下流体注入口注入流体; 以及至少在所述上流体喷射端口和所述下流体喷射端口之间确定第二差分温度分布。

7. 发明授权

US5697441A Selective zonal isolation of oil wells 失效
标题翻译：油井的选择性区域隔离
公开(公告)号：US5697441A
公开(公告)日：1997-12-16
申请号：US557148
申请日：1996-03-20
申请人： Claude Joseph Vercaemer , Stephen Nigel Davies , Demosthenis Georgeou Pafitis , Geoffrey C. Maitland , Jean Pierre Poyet
发明人： Claude Joseph Vercaemer , Stephen Nigel Davies , Demosthenis Georgeou Pafitis , Geoffrey C. Maitland , Jean Pierre Poyet
IPC分类号： E21B33/124 , E21B33/13 , E21B33/134 , E21B33/14 , E21B43/26
CPC分类号： E21B33/124 , E21B33/13 , E21B33/134 , E21B33/146 , E21B43/261
摘要： In the horizontal parts of deviated wells arranged within a producing formation, good communication between the formation and the wellbore liner is required, and this may be achieved by using a slotted or perforated liner in the horizontal section without any cementing to bond the liner to the wellbore. However, problems can arise if it is desired to work selectively in a zone in the horizontal section, since with a perforate liner there is no way of isolating the zone from the remainder of the well by using internal packers. This problem can be overcome by providing packers around the outside of the liner, this then allows packers inside the liner to be used to isolate a portion of the well. However, these external casing packers must be sealed against the wellbore, they must be positioned in advance, and they substantially increase the cost of the completion. The present invention suggests novel means of zonal isolation in a well with a perforate liner, this isolation being achieved by using a liquid composition that can be pumped into the relevant annular region between the liner and the wellbore and then set to form a plug that prevents communication from one side to the other except via the liner. More specifically, the invention provides a method of placing a plug around a perforate liner in which: a pair of spaced packers (14, 16) are placed inside the liner (12) to define both a chamber (20) inside the liner which includes a perforation (22) and also a region (24) to be plugged outside the liner, a predetermined volume of plugging fluid is pumped into the chamber and, via the perforation, into the region to be plugged; and after the plugging fluid has set the packers are removed from the liner.
摘要翻译： PCT No.PCT / GB94 / 01358 Sec。 371日期：1996年3月20日 102（e）1996年3月20日PCT PCT 1994年6月23日PCT公布。公开号WO95 / 00739 日期1995年1月5日在布置在生产地层内的偏斜井的水平部分中，需要地层和井筒衬套之间良好的连通性，这可以通过在水平部分中使用开槽或穿孔的衬垫来实现，而不需要任何固井将衬管粘结到井筒上。然而，如果希望在水平部分的区域中选择性地工作，则可能会出现问题，因为使用穿孔衬套，通过使用内部封隔器，无法将该区域与井的其余部分隔离。通过在衬套的外部提供封隔器可以克服这个问题，这样就可以使用衬垫内的封隔器来隔离井的一部分。然而，这些外壳式封隔器必须密封在井眼上，所以它们必须预先定位，并且大大增加了完井的成本。本发明提出了在具有穿孔衬套的井中的区域分离的新方法，该隔离是通过使用可以泵送到衬套和井眼之间的相关环形区域中的液体组合物来实现的，然后设置成形成防止从一边到另一边的通信，除了通过班轮。更具体地，本发明提供了一种将塞子放置在穿孔衬套周围的方法，其中：一对间隔开的封隔器（14,16）放置在衬套（12）内部，以限定衬套内部的室（20），其包括穿孔（22）以及要封装在衬垫外部的区域（24），将预定体积的堵塞流体泵送到腔室中，并通过穿孔进入待堵塞的区域; 并且在堵塞流体已经设置之后，将封隔器从衬垫上移除。

8. 发明授权

US07565834B2 Methods and systems for investigating downhole conditions 失效
标题翻译：调查井下条件的方法和系统
公开(公告)号：US07565834B2
公开(公告)日：2009-07-28
申请号：US11751405
申请日：2007-05-21
申请人： Sarmad Adnan , Stephen Nigel Davies , Jerome Maniere , Christopher Lenn
发明人： Sarmad Adnan , Stephen Nigel Davies , Jerome Maniere , Christopher Lenn
IPC分类号： E21B47/06
CPC分类号： E21B47/065 , E21B43/14 , E21B43/16 , E21B47/1005 , E21B47/123
摘要： Methods and systems for investigating downhole conditions are described. One method comprises inserting a tubular into a wellbore, the tubular comprising a tubular section having upper and lower fluid injection ports, and having a thermally insulated fiber optic cable section positioned inside the tubular extending to the upper fluid injection port, and a non-insulated fiber optic cable section positioned outside of the tubular section and extending at least between the upper and lower fluid injection ports; positioning the tubular section having upper and lower fluid injection ports near a suspected thief or pay zone; injecting a fluid through the upper fluid injection port; determining a first differential temperature profile between the upper and lower fluid injection ports; injecting a fluid through the lower fluid injection port; and determining a second differential temperature profile at least between the upper and lower fluid injection ports.
摘要翻译：描述了用于调查井下条件的方法和系统。一种方法包括将管状物插入井眼中，该管状物包括具有上部和下部流体注入口的管状部分，并且具有定位在延伸至上部流体注入口的管状物内部的绝热光缆部分，以及非绝缘光纤电缆部分位于管状部分的外侧，至少在上部和下部流体注入口之间延伸; 将具有上和下流体注射口的管状部分定位在可疑小偷或付费区附近; 通过上流体注入口注入流体; 确定上流体喷射口和下流体喷射口之间的第一差分温度分布; 通过下流体注入口注入流体; 以及至少在上流体喷射口和下流体喷射口之间确定第二差分温度分布。

9. 发明授权

US06268314B1 Foamable gel composition 失效
标题翻译：可发泡凝胶组成
公开(公告)号：US06268314B1
公开(公告)日：2001-07-31
申请号：US08961046
申请日：1997-10-30
申请人： Trevor Lloyd Hughes , Stephen Nigel Davies , Francois Friedmann
发明人： Trevor Lloyd Hughes , Stephen Nigel Davies , Francois Friedmann
IPC分类号： C09K300
CPC分类号： C09K8/94 , C09K8/518 , Y10S507/903
摘要： A CO2-foamable gelling composition and use of said composition for conformance control operations are described The gelling fluid comprises a decomposing agent to counteract the detrimental effect of CO2 on the gelling process.
摘要翻译：描述了一种CO 2发泡胶凝组合物和所述组合物用于一致性控制操作的用途。胶凝流体包含分解剂以抵消CO 2对胶凝过程的不利影响。

10. 发明授权

US5652200A Water based drilling fluid additive and methods of using fluids containing additives 失效
标题翻译：水基钻井液添加剂和使用含有添加剂的流体的方法
公开(公告)号：US5652200A
公开(公告)日：1997-07-29
申请号：US518662
申请日：1995-08-24
申请人： Stephen Nigel Davies , Gerald Henry Meeten , Paul William Way
发明人： Stephen Nigel Davies , Gerald Henry Meeten , Paul William Way
IPC分类号： C09K8/04 , C09K8/22 , E21B31/03 , C09K7/02
CPC分类号： C09K8/22 , C09K8/04 , E21B31/03 , C09K2208/02 , Y10S507/906 , Y10S507/94
摘要： An additive for a water-based fluid which is to be used when the likelihood of differential sticking is high and which reduces the sticking tendency of the fluid and mud cake. An additive according to the invention comprises a well dispersed-particulate phase such as an emulsion, a fine emulsion, a microemulsion, a micellar phase or a polymeric phase having a particle size comparable with the pore throat size of a mud cake and comprising a material which forms easily deformable particles and which reduces the sticking propensity of the mud. One embodiment of the invention comprises a microemulsion of an oil which is well dispersed, substantially stable and has a substantial portion of the particle size distribution in the range 5-500 nm. An alternative embodiment comprises a micellar phase comprising one or more surfactants. The additive is typically used at a level of about 5% by volume in the drilling fluid.
摘要翻译：当差异粘附的可能性高并且降低流体和泥饼的粘附倾向时，用于水基流体的添加剂。根据本发明的添加剂包括良好分散的颗粒相，例如乳液，细乳液，微乳液，胶束相或具有与泥饼的孔喉尺寸相当的粒度的聚合物相，并且包含材料其形成容易变形的颗粒并且降低泥浆的粘附倾向。本发明的一个实施方案包括油的微乳液，其是良好分散的，基本上稳定的，并且具有5-500nm范围内的大部分粒度分布。一个替代实施方案包括包含一种或多种表面活性剂的胶束相。添加剂通常在钻井液中以约5体积％的量使用。

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