公开(公告)号：US10072476B2

公开(公告)日：2018-09-11

申请号：US14759958

申请日：2014-01-09

申请人： Kureha Corporation

发明人： Masayuki Okura ,  Takeo Takahashi ,  Hiroyuki Sato

IPC分类号： E21B33/12 ,  B29C71/02 ,  B29C47/00 ,  E21B7/00 ,  C08J5/04 ,  E21B33/138 ,  B29C47/92 ,  B29L31/26 ,  B29K67/00

CPC分类号： E21B33/12 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/03 ,  B29C48/92 ,  B29C71/02 ,  B29C2071/022 ,  B29C2948/92695 ,  B29C2948/92704 ,  B29K2067/046 ,  B29L2031/26 ,  C08J5/04 ,  C08J2367/04 ,  E21B7/00 ,  E21B33/138

摘要： A poly-L-lactic acid (PLLA) solid-state extrusion molded article having a weight average molecular weight of from 100,000 to 380,000 and a melt viscosity of from 20 to 2,000 Pa·s (at a temperature of 240° C. and a shear rate of 120 sec−1) and having an L-form content of from 80 to 100%, the article having a thickness or diameter of from 10 to 500 mm and a tensile strength of from 5 to 100 MPa at a temperature of 66° C. (the article may contain a filler and have a tensile strength of from 5 to 200 MPa); a downhole tool member or a ball sealer for well drilling and completion formed by machining the solid-state extrusion molded article; an isolation plug provided with the downhole tool member; and a production method for a PLLA solid-state extrusion molded article comprising steps of supplying a resin material containing a PLLA to an extruder, solid-state extrusion molding the material, pressurizing the solid-state extrusion molded product, drawing the pressurized product while applying a back pressure in the direction of a forming die to suppress the expansion of the solid-state extrusion molded product; and a well drilling and completion method.

公开(公告)号：US10053968B2

公开(公告)日：2018-08-21

申请号：US14796807

申请日：2015-07-10

申请人： Randy C. Tolman ,  Pavlin B. Entchev ,  Timothy I. Morrow

发明人： Randy C. Tolman ,  Pavlin B. Entchev ,  Timothy I. Morrow

IPC分类号： E21B43/26 ,  E21B43/116 ,  E21B43/267 ,  E21B43/119 ,  E21B33/124 ,  E21B33/138 ,  E21B43/117

CPC分类号： E21B43/26 ,  E21B33/124 ,  E21B33/138 ,  E21B43/116 ,  E21B43/117 ,  E21B43/119 ,  E21B43/267

摘要： A completion assembly designed to perforate a section of casing along a wellbore, comprises a perforating gun, a canister, and a locator device. The canister contains ball sealers that are dimensioned to seal perforations, while the locator device is a casing collar locator that senses the location of the assembly within the wellbore based on the spacing of casing collars. The completion assembly also includes an on-board controller configured to send an actuation signal to the perforating gun to cause one or more detonators to fire when the locator has recognized a selected location of the completion assembly, thereby perforating the casing, and to release the ball sealers from the canister. Methods for seamlessly perforating and fracturing multiple zones along a wellbore are also provided, using a select-fire perforating gun.

公开(公告)号：US20180171203A1

公开(公告)日：2018-06-21

申请号：US15578933

申请日：2016-06-03

申请人： RHODIA OPERATIONS

发明人： Arnaud CADIX ,  David James WILSON ,  Lingjuan SHEN

IPC分类号： C09K8/12 ,  C08F220/56 ,  C04B24/26 ,  C09K8/68 ,  E21B33/138 ,  E21B21/00 ,  E21B43/26

CPC分类号： C09K8/12 ,  C04B24/163 ,  C04B24/2688 ,  C04B28/04 ,  C04B2103/0061 ,  C04B2103/408 ,  C04B2103/46 ,  C08F2/20 ,  C08F2/38 ,  C08F220/54 ,  C08F220/56 ,  C08F293/005 ,  C08F2438/03 ,  C08L2555/80 ,  C09K8/035 ,  C09K8/40 ,  C09K8/467 ,  C09K8/487 ,  C09K8/68 ,  C09K8/725 ,  C09K8/88 ,  E21B21/003 ,  E21B33/138 ,  E21B43/26 ,  C04B2103/50 ,  C08F2220/585 ,  C08F212/12 ,  C08F2220/1883

摘要： The present invention relates to the use of sequential copolymers (P), comprising at least one chain (C) capable of being obtained by micellar polymerization, for keeping solid particles (p) in suspension in a fluid (F) where said chain (C) is soluble.

公开(公告)号：US20180135394A1

公开(公告)日：2018-05-17

申请号：US15786239

申请日：2017-10-17

申请人： Randy C. Tolman

发明人： Randy C. Tolman

IPC分类号： E21B43/25 ,  E21B43/117 ,  E21B33/10

CPC分类号： E21B43/25 ,  E21B33/10 ,  E21B33/12 ,  E21B33/134 ,  E21B33/138 ,  E21B34/063 ,  E21B34/10 ,  E21B43/11 ,  E21B43/116 ,  E21B43/117 ,  E21B43/119 ,  E21B43/26 ,  E21B47/09

摘要： Wellbore tubulars including selective stimulation ports (SSPs) sealed with sealing devices and methods of operating the same are disclosed herein. The wellbore tubulars include a tubular body that defines a tubular conduit and a plurality of selective stimulation ports. Each selective stimulation port includes an SSP conduit and a sealing device seat. The wellbore tubulars further include a plurality of sealing devices. Each sealing device includes a primary sealing portion that is seated on a corresponding sealing device seat and forms a primary seal with the corresponding sealing device seat. Each sealing device also includes a secondary sealing portion that extends from the primary sealing portion and forms a secondary seal between the primary sealing portion and the corresponding sealing device seat. The methods include methods of stimulating a subterranean formation utilizing the wellbore tubulars.

公开(公告)号：US09945212B2

公开(公告)日：2018-04-17

申请号：US14435663

申请日：2013-01-20

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Michael W. Sanders

IPC分类号： E21B43/10 ,  E21B43/08 ,  E21B33/127 ,  E21B43/04 ,  E21B33/138

CPC分类号： E21B43/08 ,  E21B33/1277 ,  E21B33/138 ,  E21B43/04 ,  E21B43/103 ,  E21B43/108

摘要： A well screen can include multiple filter section ends, the filter section ends being displaced outward in response to expansion of the well screen, and a slurry delivery shunt conduit positioned circumferentially between the filter section ends. A method of delivering a slurry into a wellbore about a well screen can include positioning slurry delivery shunt conduits between multiple circumferentially spaced apart filter sections of the well screen, the filter sections radially outwardly displacing in a well, and flowing the slurry through the shunt conduits. A well system can include multiple well screens positioned in a wellbore, and shunt conduits which deliver a slurry into the wellbore about the well screens, the shunt conduits being positioned circumferentially between filter sections of the well screens.

公开(公告)号：US09920604B2

公开(公告)日：2018-03-20

申请号：US14940472

申请日：2015-11-13

申请人： Halliburton Energy Services, Inc.

发明人： Dale E. Jamison ,  Charles Landis ,  Jay Deville ,  Cato McDaniel

IPC分类号： E21B43/16 ,  E21B33/134 ,  E21B33/138 ,  C09K8/502 ,  C09K8/504 ,  C09K8/516 ,  C09K8/03 ,  C09K8/42 ,  C09K8/58 ,  C09K8/62

CPC分类号： E21B43/16 ,  C09K8/032 ,  C09K8/42 ,  C09K8/502 ,  C09K8/5045 ,  C09K8/516 ,  C09K8/58 ,  C09K8/62 ,  C09K2208/00 ,  E21B33/134 ,  E21B33/138

摘要： Mineral particles may provide for wellbore fluids with tailorable properties and capabilities, and methods relating thereto. Mineral particles may be utilized in methods that include introducing a wellbore fluid having a density of about 7 ppg to about 50 ppg into a wellbore penetrating a subterranean formation, the wellbore fluid comprising a base fluid and a plurality of mineral particles, and the wellbore fluid having a first viscosity; contacting at least some of the mineral particles with a linking agent so as to link the at least some of the mineral particles, thereby increasing the first viscosity to a second viscosity.

公开(公告)号：US20180037803A1

公开(公告)日：2018-02-08

申请号：US15668957

申请日：2017-08-04

申请人： BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERITY AND AGRICULTURAL AND MECHAN

发明人： Arash Dahi Taleghani ,  Guoqiang Li

IPC分类号： C09K8/516 ,  E21B37/00 ,  E21B21/00 ,  E21B33/138

CPC分类号： C09K8/516 ,  C09K8/035 ,  C09K2208/08 ,  E21B21/003 ,  E21B33/138 ,  E21B37/00 ,  E21B43/267

摘要： Embodiments of the present disclosure provide for loss circulation materials, methods of making loss circulation materials, methods treating oil and gas well fractures using loss circulation materials, and the like.

公开(公告)号：US20180010419A1

公开(公告)日：2018-01-11

申请号：US15643622

申请日：2017-07-07

申请人： Baker Hughes, a GE company, LLC

发明人： Silviu Livescu ,  Jeyhun Najafov

IPC分类号： E21B33/138 ,  E21B47/06 ,  E21B47/00 ,  E21B29/06 ,  E21B29/02 ,  E21B47/10 ,  E21B29/00 ,  E21B34/06

CPC分类号： E21B33/138 ,  E21B29/002 ,  E21B29/02 ,  E21B29/06 ,  E21B34/066 ,  E21B43/25 ,  E21B47/0002 ,  E21B47/06 ,  E21B47/065 ,  E21B47/10

摘要： Systems and methods for reducing unwanted water and/or gas intrusion into a hydrocarbon production wellbore. The system includes a treatment injection tool for injecting a treatment agent into portions of the formation surrounding the wellbore and a tunneling tool for forming one or more tunnels within the formation. Sensors provide real-time information about wellbore parameters during treatment so that wellbore analysis can be conducted.

公开(公告)号：US20180010034A1

公开(公告)日：2018-01-11

申请号：US15544228

申请日：2016-01-20

申请人： Halliburton Energy Services, Inc.

发明人： Lalit Pandurang Salgaonkar ,  Mallikarjuna Shroff Rama ,  Rahul Chandrakant Patil

IPC分类号： C09K8/512 ,  E21B33/138 ,  C08F8/00

CPC分类号： C09K8/512 ,  C08F8/00 ,  C09K8/508 ,  C09K8/608 ,  C09K8/88 ,  E21B33/138

摘要： Sealant compositions that may be used for creating fluid flow preventing barriers in a subterranean formation. A method may comprise reacting components comprising an oxazoline functionalized polymer and a crosslinking agent in a subterranean formation to create a barrier in the subterranean formation.

公开(公告)号：US09863211B2

公开(公告)日：2018-01-09

申请号：US14891887

申请日：2013-09-24

申请人： Halliburton Energy Services, Inc.

发明人： Pubudu H Gamage ,  William Walter Shumway ,  Jay Paul Deville

IPC分类号： E21B33/138 ,  E21B43/26 ,  C09K8/62 ,  C09K8/60 ,  E21B43/114

CPC分类号： E21B33/138 ,  C09K8/602 ,  C09K8/62 ,  E21B43/114 ,  E21B43/26

摘要： A method relating to perforation operations, which comprises introducing a wettability altering fluid into a wellbore extending into a subterranean formation such that the wettability altering fluid seeps into the subterranean formation. Subsequent to introducing the wettability altering fluid, a fluid loss pill is introduced into the wellbore such that seepage of fluid between the wellbore and the subterranean formation is inhibited.