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 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Patents for E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780)
07/2014
07/23/2014CN103939042A 一种注水井洗井辅助调节器 An injection wells flushing auxiliary regulator
07/23/2014CN103939041A 高压过滤减压器 High pressure filter pressure reducer
07/23/2014CN103939040A 负压防尘装置 Negative pressure dustproof device
07/22/2014US8783381 Formation testing in managed pressure drilling
07/17/2014WO2013127610A3 Actuator for dual drill string valve and rotary drill string valve configuration therefor
07/16/2014EP2753787A1 High temperature drilling with lower temperature rated tools
07/16/2014CN203716947U 油田注水井井下防返吐、可反洗工艺管柱系统 Underground Injection Wells oilfield anti-back spit, you can backwash process column system
07/16/2014CN203716923U 水平井分层调剖注入管柱 Horizontal well stratified injection string profile
07/16/2014CN203716899U 油气井用的洗井防漏失阀 Wash well with the loss of oil and gas wells leak valve
07/16/2014CN203716898U 一种泥浆罐海底阀 One kind of seabed mud tank valve
07/16/2014CN203716897U 一种双流程泥浆净化系统 A dual flow of mud purification system
07/16/2014CN203716896U 一种水平井冲砂施工管柱高效喷射冲洗装置 A horizontal wells washed sand column efficient jet flushing device construction
07/16/2014CN203716867U 防堵防落物油管接箍及使用该油管接箍的冲砂笔尖装置 Attempts to prevent FOPS pipe couplings and pipe couplings using the red sand pen device
07/16/2014CN203716863U 主动复合钻杆 Active composite drill
07/16/2014CN203716843U 一种桥梁钻孔装置 One kind of bridge drilling device
07/16/2014CN203711321U 一种泥浆遮挡装置 One kind of mud blocking device
07/16/2014CN203711320U 一种泥浆遮挡装置上的转动机构 A mud blocking the rotation mechanism on the apparatus
07/16/2014CN103930642A 水平定向的钻井系统 Horizontal directional drilling systems
07/16/2014CN103930183A 用于钻井流体和钻屑的三相分离系统 For drilling fluids and drill cuttings phase separation system
07/16/2014CN103924938A 一种煤矿井下瓦斯抽采孔清孔钻头、清孔装置及清孔方法 One kind of coal mine gas drainage hole drill Chiang Khong, Chiang Khong Chiang Khong apparatus and method
07/16/2014CN103924937A 一种煤层气多分支水平井的洗井作业方法 Wash wells operating method of CBM multi-branch horizontal wells
07/15/2014US8781747 Method of determining parameters of a layered reservoir
07/15/2014US8776882 Engineered fibers for well treatments
07/15/2014CA2760950C Dual action jet bushing
07/15/2014CA2632475C Vibratory separator for separating solids from drilling fluids
07/15/2014CA2533430C Down hole hammer drill
07/10/2014WO2013113002A4 A method to control the environment in a laser path
07/10/2014US20140193282 Drilling Fluid Pump Module Coupled to Specially Configured Riser Segment and Method for Coupling the Pump Module to the Riser
07/10/2014US20140190904 Drilling Fluid Reclaimer
07/10/2014US20140190749 Downhole drilling tool
07/09/2014EP2751379A2 Injection of fluid into selected ones of multiple zones with well tools selectively responsive to magnetic patterns
07/09/2014EP2751378A1 Controlled pressure pulser for coiled tubing applications
07/09/2014EP2751377A1 Downhole fluid flow control system and method having dynamic response to local well conditions
07/09/2014CN203702093U 钻机钻杆下支撑机构 Under the drill rig support mechanism
07/09/2014CN203702074U 可洗井长胶筒压差式注水封隔器 Washable long plastic tube wells pressure water injection packer
07/09/2014CN203702041U 消烟钻岩机 Smoke and rock drilling machine
07/09/2014CN203702040U 一种滤芯自清洗式钻机吸尘器 One kind of self-cleaning filter rig cleaner
07/09/2014CN203702039U 钻探设备及其泥浆过滤装置 Drilling equipment and slurry filtration device
07/09/2014CN203702012U 一种反循环钻井机 An anti-circulation drilling machine
07/09/2014CN203702011U 一种煤层防突效果检验钻杆 One kind of coal outburst prevention drill test results
07/09/2014CN203701992U 全断面钻具和旋挖钻机 Full section drilling and rotary drilling rig
07/09/2014CN103917736A 用于在地层中钻井眼的装置和方法 Apparatus and methods for the formation drilled wellbore
07/09/2014CN103912227A 钻孔接粉器 Drilling pick powder feeder
07/09/2014CN103912226A 智能型自循环水井洗井设备 Intelligent self-circulation Well Washing Equipment
07/09/2014CN103912225A 用于煤层气开采充气欠平衡钻分支井的辅助携岩工具 Inflatable for CBM wells drilled underbalanced auxiliary tool to bring rock
07/09/2014CN103911987A 基于钻孔灌注桩气举反循环工艺的压力调节装置 Reverse circulation process pressure regulating device based on gas lift Bored
07/09/2014CN102828690B 步履式双回旋潜孔钻机 Walking double roundabout submersible drilling rig
07/08/2014US8770317 Center discharge gas turbodrill
07/08/2014US8770287 Defoaming agent compositions and methods of making and using same
07/08/2014CA2802048A1 Drilling fluid and method for drilling a wellbore
07/08/2014CA2776862C Apparatuses and methods of manufacturing oilfield machines
07/08/2014CA2698147C Hydrocyclones for treating drilling fluid
07/03/2014WO2014105082A1 Distributed inflow control device
07/03/2014WO2014105056A1 Bha surge relief system
07/03/2014WO2014105055A1 Mitigating swab and surge piston effects across a drilling motor
07/03/2014WO2014105054A1 Mitigating swab and surge piston effects in wellbores
07/03/2014WO2014102573A1 Regulating drilling fluid pressure in a drilling fluid circulation system
07/03/2014WO2014051694A3 Subsea well containment systems and methods
07/03/2014WO2013135694A3 Method of and apparatus for drilling a subterranean wellbore
07/03/2014US20140185406 Process for mixing wellbore fluids
07/03/2014US20140182943 Continuous flow drilling systems and methods
07/03/2014US20140182942 Invert drilling fluids
07/03/2014US20140182699 Flushing tool and method of flushing perforated tubing
07/03/2014DE102012025480A1 Pipe-pulling type drilling device for decentralized promotion of high temperature terrestrial heat from large drilling depth, has high pressure pipe sections that are internally and externally coupled to short thin-walled pipe portion
07/02/2014EP2748410A2 Downhole fluid flow control system having a fluidic module with a bridge network and method for use of same
07/02/2014EP2747857A1 Arrangement for sand collection
07/02/2014CN203685104U 一种油套安全保护器 An oil jacket safety protection
07/02/2014CN203685098U 可循环固定卡瓦式外打捞装置 Recyclable fixed kava ceremony outside salvage device
07/02/2014CN203685087U 带大直径电缆通道的双瓣单向阀 Double disc check valve with a large diameter cable channels
07/02/2014CN203685086U 双弹簧支拉式自动灌浆活门浮阀 Dual spring support automatic filling valves pull the float valve
07/02/2014CN203685085U 一种反循环短节 An anti-short cycle festival
07/02/2014CN203685084U 一种废弃钻井液处理系统及其收集装置 One kind of waste drilling fluid handling systems and collection device
07/02/2014CN203685083U 钻孔泥浆循环利用装置 Drilling mud recycling unit
07/02/2014CN203685082U 一种丛式井泥浆返回装置 One kind of cluster wells mud return means
07/02/2014CN203685081U 石油钻井封井器冲洗装置 Oil drilling blowout preventer flushing device
07/02/2014CN203685080U 负压旋流冲砂装置 Negative pressure cyclone sand washing equipment
07/02/2014CN203685079U 一种钻杆高压注水器 One kind of high-pressure injector drill
07/02/2014CN203685078U 旋转钻进式冲砂笔尖 Rotary drilling punching sand nib
07/02/2014CN203685032U 一种岩石桩基成孔设备 One kind of rock pile into the hole equipment
07/02/2014CN203685017U 一种全液压履带式切削钻机的双泵液压系统 A fully hydraulic crawler rig cutting double pump hydraulic system
07/02/2014CN203684210U 一种钻孔灌注桩底部二次清孔装置 One kind of bored pile at the bottom of the second hole cleaning device
07/02/2014CN103906888A 通过光亮退火消除液压流体污染物 Elimination of hydraulic fluid contamination by bright annealing
07/02/2014CN103899262A 钻井油基钻屑随钻处理方法 Drilling of oil-based drilling cuttings treatment
07/02/2014CN103899261A 泡排井筒携砂可视化实验装置及方法 Bubble row wellbore sand carrying visualization experimental apparatus and method
07/02/2014CN102434120B 控压钻井用回压补偿装置 MPD with back pressure compensating device
07/02/2014CN102352732B 流道转换控制系统 Runner conversion control system
07/02/2014CN101755105B 油田采出水的处理和再利用 Oilfield produced water treatment and reuse
07/01/2014US8763842 Well fluid additive systems, well fluids therefrom, and methods of making using such systems
07/01/2014US8763724 Emulsion-based cleaning composition for oilfield applications
07/01/2014US8763705 Compositions and methods for cleaning a wellbore prior to cementing
06/2014
06/26/2014WO2014100355A1 Three wire press solids dewatering method and apparatus for oil and gas field applications
06/26/2014WO2014099789A1 Progressive cavity based control system
06/26/2014WO2014099621A1 Wellbore servicing materials and methods of making and using same
06/26/2014WO2014099616A1 Wellbore servicing materials and methods of making and using same
06/26/2014WO2014099306A2 Flow control assemblies for downhole operations and systems and methods including the same
06/26/2014WO2014099122A1 System and method for acoustic imaging using a transducer array
06/26/2014WO2014096795A1 Self-regulating surplussing check valve
06/26/2014WO2013135725A3 Blowout preventer assembly
06/26/2014US20140175008 Drill cuttings treatment system
06/26/2014US20140174830 High pressure shear nozzle for inline conditioning of drilling mud
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