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1.发明申请Method to Design Expandable Cement Based upon Specified Downhole Conditions 审中-公开基于指定井下条件设计可膨胀水泥的方法公开(公告)号：US20160032706A1
公开(公告)日：2016-02-04
申请号：US14680982
申请日：2015-04-07
发明人： Soraya Bornaz , Yucun Lou , Brice Lecampion
CPC分类号： E21B33/14 , C04B40/0032 , C09K8/467 , E21B47/0005 , G01N33/383
摘要： A method of performing a cementing operation with an expandable cement deployable into a wellbore penetrating a subterranean formation is provided. The method involves determining design parameters of a wellsite, determining at least one estimated eigenstrain of the expandable cement based on the design parameters, selecting the expandable cement based on the estimated eigenstrain, and validating the selected expandable cement by comparing the estimated eigenstrain with the empirical eigenstrain. The design parameters includes a minimum pre-stress of the wellbore sufficient to prevent creation of a microannulus in the wellbore. The estimated eigenstrain is sufficient to generate the determined minimum pre-stress.
摘要翻译： 提供了一种通过可扩展的水泥进行固井操作的方法，可膨胀水泥可部分穿透穿透地下地层的井筒。 该方法包括确定井场的设计参数，基于设计参数确定可扩展水泥的至少一个估计的本征应变，基于估计的特征应变选择可膨胀水泥，以及通过将估计的本征应变与经验值相比较来验证所选择的可膨胀水泥 特征应变 设计参数包括井筒的最小预应力足以防止在井眼中产生微量元素。 估计的本征应变足以产生确定的最小预应力。
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公开(公告)号：US20170204726A1
公开(公告)日：2017-07-20
申请号：US15475858
申请日：2017-03-31
CPC分类号： E21B49/00 , E21B47/0002 , G01V1/40 , H04B7/18508 , H04B7/18521 , H04B10/5561 , H04B10/677 , H04L27/2075 , H04L27/2096 , H04L27/223 , H04L27/2601 , Y02D70/446 , Y02D70/46
摘要： In one possible implementation an in-situ property determination system includes a displacement tool configured for use in a wellbore. The displacement tool includes four or more pads symmetrically located about an axis of the displacement tool, with each pad having a contact surface configured to contact a wall of the wellbore. The four or more pads can extend from a first position proximate an outer surface of the displacement tool to a second position in contact with the wall of the wellbore such that the four or more pads deform the wellbore into an at least approximately circular cross section. The system also includes a recordation device to record force displacement information associated with extending the four or more pads from the first position to the second position.
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公开(公告)号：US10267131B2
公开(公告)日：2019-04-23
申请号：US14421469
申请日：2013-08-13
摘要： An apparatus and methods for forming a transverse fracture in a subterranean formation surrounding a wellbore including measuring a property along the length of the formation surrounding the wellbore, forming a stress profile of the formation, identifying a region of the formation to remove using the stress profile, removing the region with a device in the wellbore, and introducing a fluid into the wellbore, wherein a transverse fracture is more likely to form than if the region was not removed. Some embodiments benefit from computing the energy required to initiate and propagate a fracture from the region, optimizing the fluid introduction to minimize the energy required, and optimizing the geometry of the region.
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4.发明申请公开(公告)号：US20170145818A1
公开(公告)日：2017-05-25
申请号：US15193724
申请日：2016-06-27
IPC分类号： E21B49/00 , G01V1/50 , E21B43/26 , E21B43/117 , E21B43/119
CPC分类号： E21B49/00 , E21B43/117 , E21B43/119 , E21B43/26 , E21B43/263 , G01V1/46 , G01V1/50
摘要： The subject disclosure relates to determining an optimum orientation for perforations around the circumference of a subsurface borehole and optimum wellbore fluid initiation pressure for hydraulic fracturing in anisotropic formations.
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5.发明申请COMPETITION BETWEEN TRANSVERSE AND AXIAL HYDRAULIC FRACTURES IN HORIZONTAL WELL 审中-公开水平井横向和轴向液压裂缝之间的竞争公开(公告)号：US20150218925A1
公开(公告)日：2015-08-06
申请号：US14421469
申请日：2013-08-13
CPC分类号： E21B43/26 , E21B43/11 , E21B49/006
摘要： An apparatus and methods for forming a transverse fracture in a subterranean formation surrounding a wellbore including measuring a property along the length of the formation surrounding the wellbore, forming a stress profile of the formation, identifying a region of the formation to remove using the stress profile, removing the region with a device in the wellbore, and introducing a fluid into the wellbore, wherein a transverse fracture is more likely to form than if the region was not removed. Some embodiments benefit from computing the energy required to initiate and propagate a fracture from the region, optimizing the fluid introduction to minimize the energy required, and optimizing the geometry of the region.
摘要翻译： 一种用于在围绕井眼的地下地层中形成横向断裂的装置和方法，包括测量围绕井筒的地层长度的性质，形成地层的应力分布，使用应力剖面识别地层的要移除的区域 用井筒中的装置去除该区域，并将流体引入井筒中，其中横截面更可能形成，如果该区域未被除去。 一些实施例受益于计算从该区域启动和传播骨折所需的能量，优化流体引入以使所需的能量最小化并优化该区域的几何形状。
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