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1. 发明申请

WO2008019173A3 HIGH DENSITY PERFORATING GUN SYSTEM PRODUCING REDUCED DEBRIS 审中-公开
公开(公告)号：WO2008019173A3
公开(公告)日：2008-02-14
申请号：PCT/US2007/066787
申请日：2007-04-17
申请人： OWEN OIL TOOLS LP , PRATT, Dan, W. , CHAWLA, Manmohan, Singh
发明人： PRATT, Dan, W. , CHAWLA, Manmohan, Singh
IPC分类号： F41F5/00
摘要： A perforating system has a perforating module comprising a unitary body of explosive. The explosive is contained within a non-explosive casing, or liner, having formed indentations and a cover thereover. The indentations, which will transform into explosively formed penetrators (EFP's) upon detonation, have a perimeter shape that allows for improved packing density, e.g., a hexagonal perimeter, which results in relatively little "dead space" wherein no perforating penetrators are generated. In operation, the module provides a relatively dense shot pattern and substantially reduced amount of post-detonation debris that could clog the perforations and/or require remedial clean-up or repeat perforation.

2. 发明申请

WO2009094393A1 SYSTEM AND METHOD FOR ENHANCED WELLBORE PERFORATIONS 审中-公开
标题翻译：用于增强井眼执行的系统和方法
公开(公告)号：WO2009094393A1
公开(公告)日：2009-07-30
申请号：PCT/US2009/031588
申请日：2009-01-21
申请人： OWEN OIL TOOLS LP , PRATT, Dan, W. , HANEY, Joseph , MONTANEZ, Thomas, C. , CLAY, Matthew
发明人： PRATT, Dan, W. , HANEY, Joseph , MONTANEZ, Thomas, C. , CLAY, Matthew
IPC分类号： E21B29/02
CPC分类号： E21B43/117 , E21B43/26
摘要： A method for perforating a subterranean formation includes positioning a shaped charge and a reactant composite material in a carrier; positioning the carrier in the wellbore; detonating the shaped charge; and disintegrating the reactant composite material using a shock generated by the detonated shaped charge. The method may also include initiating a first deflagration by using carbon and heat resulting from the detonation of the shaped charge and an oxygen component of the disintegrated reactant composite material. A system for performing the method may include a carrier, a shaped charge positioned in the carrier; and a reactant composite material positioned in the carrier. The reactant composite material may be configured to disintegrate upon detonation of the shaped charge.
摘要翻译：用于穿孔地层的方法包括将成形装料和反应物复合材料定位在载体中; 将载体定位在井眼中; 引爆成形电荷; 并使用由引爆成形装料产生的冲击来分解反应物复合材料。该方法还可以包括通过使用由成形装料的爆炸和分解的反应物复合材料的氧组分引起的碳和热来引发第一爆燃。用于执行该方法的系统可以包括载体，位于载体中的成形电荷; 和位于载体中的反应物复合材料。反应物复合材料可以被配置为在成形装料的爆炸时分解。

3. 发明申请

WO2007140258A2 PERFORATING METHODS AND DEVICES FOR HIGH WELLBORE PRESSURE APPLICATIONS 审中-公开
标题翻译：高压井压应用的执行方法和装置
公开(公告)号：WO2007140258A2
公开(公告)日：2007-12-06
申请号：PCT/US2007/069665
申请日：2007-05-24
申请人： OWEN OIL TOOLS LP , LAGRANGE, Timothy, Edward , PRATT, Dan, W. , WEST, Jeffrey, Michael , WEISNER, Lesley, Alan , HOELSCHER, Christopher
发明人： LAGRANGE, Timothy, Edward , PRATT, Dan, W. , WEST, Jeffrey, Michael , WEISNER, Lesley, Alan , HOELSCHER, Christopher
IPC分类号： E21B29/02
CPC分类号： E21B43/116 , E21B43/117 , E21B43/119
摘要： A carrier tube for use in a wellbore perforating gun has inner and outer layers selected from materials of different, comparative physical properties. The inner layer has a higher compressive strength, and the outer layer has a higher yield strength. The inner layer enables the tube to withstand wellbore compressive pressures, which may, depending upon the material selected, include relatively high pressures, while the outer layer contains any fragments of the inner layer that result upon detonation of the gun. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
摘要翻译：用于井眼穿孔枪的载体管具有从不同的物理性质的材料中选择的内层和外层。内层具有较高的抗压强度，外层具有较高的屈服强度。内层使得管能够承受井筒压缩压力，其可以根据所选择的材料包括相对高的压力，而外层包含导致喷枪引爆的内层的任何碎片。要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

4. 发明申请

WO2009117548A1 DEVICES AND METHODS FOR PERFORATING A WELLBORE 审中-公开
标题翻译：用于执行井筒的装置和方法
公开(公告)号：WO2009117548A1
公开(公告)日：2009-09-24
申请号：PCT/US2009/037615
申请日：2009-03-19
申请人： OWEN OIL TOOLS LP , WANG, Zeping , PRATT, Dan, W. , NOE, Paul
发明人： WANG, Zeping , PRATT, Dan, W. , NOE, Paul
IPC分类号： F42B1/02
CPC分类号： E21B43/117 , F42B1/028
摘要： An apparatus and method for perforating a subterranean formation is disclosed. The apparatus includes a tubular carrier; a charge tube disposed in the tubular carrier; and at least one shaped charge mounted in the charge tube which includes a casing, an explosive material and a liner enclosing the explosive material within the casing. An apex portion of the liner has a cross-sectional thickness greater than a cross-sectional thickness of any other portion of the liner. The cross-sectional thickness of the apex portion may be at least fifty percent thicker than a cross-section of a portion adjacent the apex portion. A density of the apex portion may be greater than the density of any other portions of the liner.
摘要翻译：公开了一种用于穿孔地下地层的装置和方法。该装置包括管状载体; 设置在所述管状载体中的充电管; 以及安装在所述充电管中的至少一个成形电荷器，其包括壳体，爆炸性材料和将所述爆炸材料包封在所述壳体内的衬套。衬套的顶点部分的横截面厚度大于衬套的任何其它部分的横截面厚度。顶点部分的横截面厚度可以比与顶部部分相邻的部分的横截面厚至少50％。顶点部分的密度可以大于衬垫的任何其它部分的密度。

5. 发明申请

WO2020023774A1 MULTI-PHASE, SINGLE POINT, SHORT GUN PERFORATION DEVICE FOR OILFIELD APPLICATIONS 审中-公开
公开(公告)号：WO2020023774A1
公开(公告)日：2020-01-30
申请号：PCT/US2019/043481
申请日：2019-07-25
申请人： OWEN OIL TOOLS LP
发明人： MONTANEZ, Chris , PRATT, Dan, W.
IPC分类号： E21B43/117 , E21B43/26
摘要： An apparatus for perforating an unconventional subterranean formation includes a charge holder having a passage along a long axis, a detonating device positioned in the passage and a plurality of shaped charges supported by the charge holder and circumferentially distributed along a same plane that is transverse to the long axis. Each shaped charge is formed of at least a charge case, an explosive material disposed in the charge case, and a liner enclosing the explosive material in the charge case. All of the shaped charges are directly energetically coupled to the detonating device.

6. 发明申请

WO2018231847A1 LIMITED PENETRATION PERFORATING METHODS FOR OILFIELD APPLICATIONS 审中-公开
公开(公告)号：WO2018231847A1
公开(公告)日：2018-12-20
申请号：PCT/US2018/037132
申请日：2018-06-12
申请人： OWEN OIL TOOLS LP
发明人： DAY, Cory, D. , CLAY, Matthew, C. , KINSEY, James , BEVERIDGE, Craig , GEERTS, Shaun , PRATT, Dan, W. , COKER, Justin
IPC分类号： E21B43/117 , F42B1/028
摘要： A method for completing an unconventional subterranean formation include the steps of positioning a perforating tool in a section of the deviated wellbore that intersects the unconventional formation, forming at least one opening in a production structure without substantially penetrating into a surrounding formation by firing the perforating tool, and fracturing the formation by pumping a fracturing fluid through the at least one opening. The perforating tool may include shaped charges that have a charge case, a liner disposed in the charge case, and an explosive material filling an interior of the charge case.

7. 发明申请

WO2016123312A1 PRESSURE SWITCH FOR SELECTIVE FIRING OF PERFORATING GUNS 审中-公开
标题翻译：用于选择性执行机构的压力开关
公开(公告)号：WO2016123312A1
公开(公告)日：2016-08-04
申请号：PCT/US2016/015320
申请日：2016-01-28
申请人： OWEN OIL TOOLS LP
发明人： LAGRANGE, Timothy, E. , DAY, Cory, D. , PATTON, George , PRATT, Dan, W.
IPC分类号： E21B43/1185
CPC分类号： E21B43/1185 , E21B43/11852
摘要： A switch (100) includes a casing (110) having a bore (112), a piston assembly (130) having a first end (134) and an exposed end (140), a plurality of flanges (138) formed at the first end; an insulating sleeve (136) enclosing the first end, a contact assembly (150) disposed in the casing bore; a pin (170) disposed in the bore; a predetermined quantity of lubricant (210) deposited in the bore; and a spring (190) urging the pin into engagement with the piston assembly. The insulating sleeve and the plurality of flanges are at least partially disposed in the casing bore. The pin has: (i) a first position wherein the pin electrically contacts the piston assembly and is electrically isolated from the contact assembly; and (ii) a second position wherein the pin is electrically isolated from the piston assembly and electrically engages the contact assembly. The predetermined quantity of lubricant may be approximately 0.3 grams.
摘要翻译：开关（100）包括具有孔（112）的壳体（110），具有第一端（134）和暴露端（140）的活塞组件（130），在第一端形成的多个凸缘结束; 封闭第一端的绝缘套管（136），设置在壳体孔中的接触组件（150）; 设置在孔中的销（170）; 沉积在孔中的预定量的润滑剂（210）; 以及弹簧（190），其推动销与活塞组件接合。绝缘套管和多个凸缘至少部分地布置在套管孔中。所述销具有：（i）第一位置，其中所述销与所述活塞组件电接触并且与所述接触组件电隔离; 和（ii）第二位置，其中所述销与所述活塞组件电隔离并且电接合所述接触组件。预定量的润滑剂可以是约0.3克。

8. 发明申请

WO2005103602A2 APPARATUS AND METHOD FOR PENETRATING OILBEARING SANDY FORMATIONS, REDUCING SKIN DAMAGE AND REDUCING HYDROCARBON VISCOSITY 审中-公开
标题翻译：用于渗透油砂浆的装置和方法，减少皮肤损伤并降低油墨粘度
公开(公告)号：WO2005103602A2
公开(公告)日：2005-11-03
申请号：PCT/US2004/034847
申请日：2004-10-21
申请人： OWEN OIL TOOLS L.P. , PRATT, Dan, W. , CHAWLA, Mammohan, S.
发明人： PRATT, Dan, W. , CHAWLA, Mammohan, S.
IPC分类号： F42B10/00
CPC分类号： F42B1/028 , F42B1/032
摘要： A shaped charge and a method of using such to provide for large and effective perforations in oil bearing sandy formations while causing minimal disturbance to the formation porosity is described. This shaped charge uses a low-density liner having a filler material that is enclosed by outer walls made, preferably, of plastic or polyester. The filler material is preferably a powdered metal or a granulated substance, which is left largely unconsolidated. The preferred filler material is aluminum powder, or aluminum particles, that are coated with an oxidizing substance, such as TEFLON®, permitting a secondary detonation reaction inside the formation following jet penetration. The filled liner is also provided with a metal cap to aid penetration of the gun scallops, the surrounding borehole casing and the cement sheath. The metal cap forms the leading portion of the jet, during detonation. The remaining portion of the jet is formed from the low-density filler material, thereby resulting in a more particulated jet. The jet results in less compression around the perforation tunnel and less skin damage to the proximal end of the perforation tunnel.
摘要翻译：描述了一种成形装料和使用这种方法在含油砂层中提供大的和有效的穿孔，同时对地层孔隙度造成最小的干扰。该成形装料使用具有由优选由塑料或聚酯制成的外壁包围的填料的低密度衬里。填充材料优选为粉末状金属或粒状物质，其在很大程度上未被固化。优选的填充材料是铝粉末或铝颗粒，其涂覆有氧化物质，例如TEFLON，其允许喷射穿透之后的地层内的次级爆炸反应。填充衬里还设置有金属盖，以帮助枪扇贝，周围钻孔套管和水泥护套的穿透。在爆炸期间，金属盖形成射流的引导部分。射流的剩余部分由低密度填料形成，从而导致更多的雾化射流。射流导致穿孔隧道周围的压缩较少，对穿孔隧道近端的皮肤损伤较少。

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