Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 33 - Sealing or packing boreholes or wells
Patents for E21B 33 - Sealing or packing boreholes or wells (33,564)
07/2014
07/02/2014CN203684227U 一种高压旋喷法桩底排渣施工用的封堵工具 A high-pressure jet grouting pile bottom slag plugging tool used in construction
07/02/2014CN103899581A 一种反循环生产、反循环起水力喷射泵泵芯方法及装置 An anti-cycle production, reverse circulation from the water jet pump cartridge method and device
07/02/2014CN103899282A 带井下排液操作中防气体干扰的隔离装置的流动控制系统 Flow control system isolation device with anti-mine gas drainage operation interference
07/02/2014CN103899273A 矿用免清洗气动注浆装置 Mine-free cleaning pneumatic grouting equipment
07/02/2014CN103899272A 一种悬挂封隔器 One kind of suspension packer
07/02/2014CN103899271A 突出煤层采煤工作面长钻孔脉动注水防突方法 Prominent seam coal face long pulsating Water Injection drilling method
07/02/2014CN103899270A 一种煤矿用三壁注水封孔器 One kind of coal with three walls of water sealing device
07/02/2014CN103899269A 一种新型洗井保护装置 A new flushing protection
07/02/2014CN103899268A 一种提高瓦斯抽采封孔密闭性的方法 A method of sealing tightness of gas drainage improvement
07/02/2014CN103899264A 油气井筛管顶部固井完井提拉预应力地锚装置及应用方法 Oil and gas well cementing and completion pulling the top screen of prestressed anchor device and application methods
07/02/2014CN103899244A 一种用膨胀材料修复地浸采铀破损钻孔的方法 An expansion of the material used to repair damaged situ leaching of uranium drilling method
07/02/2014CN102654023B 一种用于深水钻井的主辅水下系统及其设置方法 Main and auxiliary systems and underwater setting method for deepwater drilling
07/02/2014CN102373898B 固井水泥头 Cementing Head
07/02/2014CN102272413B 环形屏障和环形屏障系统 Annular ring barrier and barrier systems
07/02/2014CN102134986B 堵水压裂增产方法 Shutoff fracture stimulation methods
07/02/2014CN101644151B 用于井下地层处理的多功能纳米颗粒 Multifunctional nanoparticles for downhole formation process
07/02/2014CN101460697B 钻井维护方法和系统 Drilling method and system maintenance
07/01/2014US8763708 Wellhead rotating breech lock and method
07/01/2014US8763705 Compositions and methods for cleaning a wellbore prior to cementing
07/01/2014US8763688 High pressure oil pipe bullet plug
07/01/2014US8763687 Wellbore isolation tool using sealing element having shape memory polymer
07/01/2014US8763686 Downhole packer tool with antifracture means
06/2014
06/26/2014WO2014100559A1 Overshot assembly and systems and methods of using same
06/26/2014WO2014100426A1 Hydrostatic tubular lifting system
06/26/2014WO2014100363A2 Annular blowout preventer and lower marine riser package connector unit
06/26/2014WO2014100072A1 Expandable downhole seat assembly
06/26/2014WO2014099693A1 Compositions and methods for well completions
06/26/2014WO2014099692A1 Millable bridge plug system
06/26/2014WO2014099691A1 Millable bridge plug system
06/26/2014WO2014099689A1 Millable bridge plug system
06/26/2014WO2014099657A1 Electronically set and retrievable isolation devices for wellbores and methods thereof
06/26/2014WO2014099357A1 Packer including support member with rigid segments
06/26/2014WO2014099207A1 Fluid plugs as downhole sealing devices and systems and methods including the same
06/26/2014WO2014099206A1 Flow control assemblies for downhole operations and systems and methods inclucding the same
06/26/2014WO2014098799A1 Apparatus and methods for retrieving a well packer
06/26/2014WO2014096921A1 Valve arrangement for venting gas from liquid circulating in a subsea production system
06/26/2014WO2014096795A1 Self-regulating surplussing check valve
06/26/2014WO2014094137A1 Multi-stage well isolation and fracturing
06/26/2014WO2014094135A1 Multi-stage well isolation
06/26/2014WO2014016617A3 Sealing apparatus and method
06/26/2014WO2014009703A3 Improved blow out preventer
06/26/2014WO2013190291A3 Seal assembly for a downhole device
06/26/2014WO2013135725A3 Blowout preventer assembly
06/26/2014US20140175750 Annular seal
06/26/2014US20140174764 Annulus Seal Utilizing Energized Discrete Soft Interfacial Sealing Elements
06/26/2014US20140174757 Electronic rupture discs for interventionaless barrier plug
06/26/2014US20140174755 Valve
06/26/2014US20140174754 Annular Blowout Preventer and Lower Marine Riser Package Connector Unit
06/26/2014US20140174753 System and method for controlling the pressure in a hydrocarbon well
06/26/2014US20140174741 Settable Compositions and Methods of Use
06/26/2014US20140174740 Method of intersecting a first well bore by a second well bore
06/26/2014US20140174739 Using colloidal silica as isolator, diverter and blocking agent for subsurface geological applications
06/26/2014US20140174738 Millable bridge plug system
06/26/2014US20140174724 Hollow hydrogel capsules and methods of using the same
06/26/2014US20140174721 Probe Packer Including Rigid Intermediate Containment Ring
06/25/2014EP2746528A2 Sub-sea chemical injection metering valve
06/25/2014EP2745156A1 Subsea electro-optical connector unit for electro-optical ethernet transmission system
06/25/2014EP2744972A1 Selectively degradable passage restriction
06/25/2014EP2744971A2 Debris barrier for hydraulic disconnect tools
06/25/2014CN203669846U 套管漏失井防漏抽油装置 Dropout well casing leak oil rig
06/25/2014CN203669820U 一种新型自灌式浮箍 A new self-filling float collar
06/25/2014CN203669819U 膨胀悬挂器 Expansion hanger
06/25/2014CN203669818U 一种多效封隔器 A pleiotropic packer
06/25/2014CN203669817U 一种新型的内防喷钻具浮阀 A new drill string within the BOP float valve
06/25/2014CN203669816U 防喷支撑体 BOP support
06/25/2014CN203669815U 密封出油双功能抽油井盘根盒 Seal oil wells pumping bifunctional packing boxes
06/25/2014CN203669814U 环状井口流程装置 Annular wellhead process equipment
06/25/2014CN203669813U 电泵流程组合井口装置 Pump flow combination wellhead
06/25/2014CN203669812U 一种在高压油气井口法兰柱面上建造油气通道的装置 An apparatus for the construction of oil and gas passage on the high pressure wellhead flange cylinders
06/25/2014CN103883279A 一种管柱型固井水泥浆快速凝固装置 One kind of string-type cement slurry rapid solidification device
06/25/2014CN103883278A 一种井底型固井水泥浆快速凝固装置 One kind of type of cement slurry downhole rapid solidification device
06/25/2014CN103883277A 一种热采密封组件 A heat-recoverable sealing assembly
06/25/2014CN103883276A 一种经济简易高效煤层瓦斯抽放钻孔封孔方法 Simple and efficient an economical sealing seam gas drainage drilling method
06/25/2014CN103883275A 一种新型节能环保注气井口装置 A new energy saving gas injection wellheads
06/24/2014US8757267 Pressure range delimited valve with close assist
06/24/2014US8757260 Degradable perforation balls and associated methods of use in subterranean applications
06/20/2014CA2838095A1 Chemical seal ring composition and method of using
06/19/2014WO2014093318A2 Closed-loop hydraulic running tool
06/19/2014WO2014092949A1 Expandable liner for oversized base casing
06/19/2014WO2014092887A1 Wellbore servicing fluids and methods of making and using same
06/19/2014WO2014092862A1 Subsea completion with a tubing spool connection system
06/19/2014WO2014092836A1 Pressure relief-assisted packer
06/19/2014WO2014092726A1 Subsea dummy run elimination assembly and related method utilizing a logging assembly
06/19/2014WO2014092714A1 Swellable packer construction
06/19/2014WO2014070503A9 Methods for producing fluid invasion resistant cement slurries
06/19/2014WO2014066071A4 Downhole flow control, joint assembly and method
06/19/2014US20140166318 Apparatus and methods for retrieving a well packer
06/19/2014US20140166317 Millable bridge plug system
06/19/2014US20140166316 Fabrication and use of well-based obstruction forming object
06/19/2014US20140166306 Apparatus and methods for retrieving a well packer
06/19/2014US20140166300 Drive head for a wellhead
06/19/2014US20140166285 Novel weighted elastomer systems for use in cement, spacer and drilling fluids
06/19/2014US20140166284 Completion system for accomodating larger screen assemblies
06/19/2014US20140166283 Millable bridge plug system
06/19/2014US20140166277 Electronically set and retrievable isolation devices for wellbores and methods thereof
06/19/2014US20140166271 Hydraulic system and method of monitoring
06/19/2014US20140166264 Blowout Preventer System Having Position and Pressure Sensing Device and Related Methods
06/19/2014CA2826730A1 Erosion resistant flow conduit
06/19/2014CA2809706A1 Ball drop wellhead control apparatus
06/18/2014EP2743444A1 Compositions and methods for well completions
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