| Patents for E21B 37 - Methods or apparatus for cleaning boreholes or wells (5,129) |
|---|
| 08/11/2005 | US20050173677 Mutual solvent for improved oil and gas permeability |
| 08/11/2005 | US20050173157 Flow control valve |
| 08/10/2005 | CN1651713A Fluid backward injection short joint |
| 08/09/2005 | CA2161537C Acidising underground reservoirs |
| 08/04/2005 | US20050167108 Openhole Perforating |
| 08/04/2005 | US20050166961 Closed loop additive injection and monitoring system for oilfield operations |
| 08/03/2005 | EP1558834A1 Methods and apparatus for a subsea tie back |
| 08/03/2005 | CN2714794Y Centralizing and paraffin removing pumping assistor |
| 08/03/2005 | CN1213126C Environment-friendly type clear paraffin control thinning agent |
| 08/02/2005 | US6924254 Viscous well treating fluids and methods |
| 08/02/2005 | US6923871 Cleaning bore hole using high energy, low energy jets |
| 07/28/2005 | US20050161221 System and method for wellbore clearing |
| 07/27/2005 | EP1556458A1 Self-destructing filter cake |
| 07/27/2005 | CN2713131Y Electromagnetic paraffin control device |
| 07/26/2005 | CA2172622C Control of iron deposition in borehole pumps |
| 07/21/2005 | WO2005066458A2 Method for enancing the retention efficiency of treatment chemicals in subterranean formations |
| 07/21/2005 | US20050155766 Flexible wellbore broach |
| 07/21/2005 | CA2683210A1 Orthoester compositions and methods of use in subterranean applications |
| 07/20/2005 | EP1554464A1 Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation |
| 07/20/2005 | CN2711384Y Oil-wiper for inclined well sucker rod |
| 07/14/2005 | US20050150659 Running a Completion Assembly Without Killing a Well |
| 07/14/2005 | US20050150658 Method and apparatus for enhancing oil and gas flow in a well |
| 07/14/2005 | US20050150652 Method for improving well quality |
| 07/14/2005 | DE10361983A1 Verfahren und Vorrichtung zur Intensivierung der Durchlässigkeit von bohrungsnahen Bodenschichten sowie von Filterkörpern und Filterschichten in Brunnen und anderen Förderbohrungen Method and apparatus for intensifying the permeability of hole near the bottom layers and of filter bodies and filter layers in wells and other production wells |
| 07/13/2005 | CN1639440A Bi-directional thruster pig apparatus and method of utilizing same |
| 07/05/2005 | US6913081 Water control treatment requires fewer steps than the sum of each treatment procedure practiced separately. The control of water production simultaneously further reduces the amount of scale formed. water control chemicals and scale inhibitors of |
| 07/05/2005 | CA2096714C Process for treating and transporting natural gas from a gas well |
| 06/30/2005 | US20050139356 Method for enhancing the retention efficiency of treatment chemicals in subterranean formations |
| 06/23/2005 | WO2004044370A3 Devices and methods for extraction, transportation and/or release of material |
| 06/20/2005 | CA2457700A1 Mutual solvent for improved oil and gas permeability |
| 06/16/2005 | WO2004055317A3 Well bore cleaning and tubular circulating and flow-back apparatus |
| 06/16/2005 | US20050129547 Method of circulating through a reciprocating downhole tubing pump and a reciprocating downhole tubing pump |
| 06/16/2005 | US20050126784 Treatment of oil wells |
| 06/15/2005 | EP1541774A2 Method and device for hydraulically declogging a well |
| 06/15/2005 | EP1540129A1 Downhole drill string having a collapsible subassembly |
| 06/14/2005 | CA2349300C Method for removal of undesired fluids from a wellbore |
| 06/09/2005 | WO2005052314A1 Downhole swivel joint assembly and method of using said swivel joint assembly |
| 06/09/2005 | US20050121191 Downhole oilfield erosion protection of a jet pump throat by operating the jet pump in cavitation mode |
| 06/09/2005 | CA2546219A1 Downhole swivel joint assembly and method of using said swivel joint assembly |
| 06/07/2005 | US6901999 Swabbing tool for wells |
| 06/07/2005 | CA2275711C On-line, thermo-chemical process for the dewaxing of oil export pipelines |
| 06/02/2005 | WO2005049955A2 Low friction face sealed reaction turbine rotors |
| 06/02/2005 | WO2005023959A3 Oil-based drilling fluid comprising a non-polluting emulsifying system which can be used for any base oil and which is stable in respect of gas hydrates formation |
| 06/02/2005 | US20050115715 Wellhead seal unit |
| 06/02/2005 | DE102004048615A1 Well treatment system for achieving transient underbalance condition in wellbore, comprises surge charge adapted upon activation to penetrate housing and not penetrate material exterior of housing |
| 06/02/2005 | CA2544596A1 Low friction face sealed reaction turbine rotors |
| 05/26/2005 | US20050109541 Low friction face sealed reaction turbine rotors |
| 05/25/2005 | EP1532346A1 Method for controlled placement of oilfield chemicals and composition useful for practicing same |
| 05/25/2005 | EP1027525B1 An apparatus for the removal of sand in an underwater well and use of a jet pump (ejector) in connection with such sand removal |
| 05/19/2005 | WO2005045183A1 Method and system for injecting a treatment fluid into a well |
| 05/19/2005 | US20050106738 Method for storing and transporting crude oil |
| 05/17/2005 | US6893874 Method for storing and transporting crude oil |
| 05/12/2005 | WO2005042915A1 Method for providing a temporary barrier in a flow pathway |
| 05/12/2005 | WO2005042905A2 A piggable flowline-riser system |
| 05/12/2005 | US20050098322 Self-propelled swabbing device and method |
| 05/12/2005 | US20050098319 System and method for scale removal in oil and gas recovery operations |
| 05/11/2005 | EP1529152A1 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
| 05/10/2005 | US6891606 Real-time on-line sensing and control of mineral scale deposition from formation fluids |
| 05/10/2005 | CA2310236C Tubing cleanout spool |
| 05/06/2005 | WO2005040552A1 Improved fracturing fluid and method of use |
| 05/05/2005 | US20050092363 Method for providing a temporary barrier in a flow pathway |
| 05/04/2005 | EP1373676A4 An apparatus for retrieving metal debris from a well bore |
| 05/04/2005 | EP1358426A4 Method of diminishing the size of the cross section of an opening of a hollow device located in a flow pipe |
| 05/04/2005 | CN2697313Y Wax and oil scraper for borehole pipe |
| 05/04/2005 | CN2697312Y Pipe short circuit type hot cleaning wax device |
| 05/03/2005 | US6886406 Downhole deposition monitoring system |
| 04/28/2005 | US20050087348 Service tool with flow diverter and associated method |
| 04/27/2005 | EP1525373A2 Stimulation and injection system |
| 04/27/2005 | CN2695625Y Combined sucker rod oil wiper |
| 04/27/2005 | CN2695624Y Expansion strong wax scrapper |
| 04/26/2005 | US6883605 Wellbore cleanout tool and method |
| 04/26/2005 | CA2330067C Scale prediction probe |
| 04/21/2005 | WO2005035938A1 Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices |
| 04/21/2005 | US20050082231 reducing the aggregation and deposition of asphalts or bitumen from fluids such as crude oil, by adding to the fluids antideposit agents such as hexadecyl naphthoxide; reducing particle and/or soot emission during combustion of diesel fuel; pollution control |
| 04/21/2005 | US20050082065 Pass through valve and stab tool |
| 04/20/2005 | EP1523606A1 Method for completing injection wells |
| 04/20/2005 | EP1341988B1 Bi-directional traction apparatus |
| 04/20/2005 | CN2693946Y Pump rod paraffin scraper |
| 04/19/2005 | US6880402 Deposition monitoring system |
| 04/19/2005 | CA2404457C Automatic chemical stick loader for wells and method of loading |
| 04/19/2005 | CA2365021C Automatic paraffin removal unit |
| 04/14/2005 | WO2005033471A1 A feed pump for a sand removal apparatus in an underground well |
| 04/13/2005 | EP1442197B1 Device for cleaning an inner pipe inserted into a gas or oil conveying boring |
| 04/13/2005 | CN1196849C Continuous flushing tool |
| 04/07/2005 | WO2004085787A3 Dual function cleaning tool |
| 04/07/2005 | US20050072570 Contamination-resistant sand control apparatus and method for preventing contamination of sand control devices |
| 04/06/2005 | CN2690587Y Anti-clip well washing water piston |
| 04/06/2005 | CN2690565Y Mosaie single system oil pumpingrod wax scraping centering ring |
| 04/05/2005 | US6874579 Creating an underbalance condition in a wellbore |
| 03/31/2005 | US20050067193 Pressure reading tool |
| 03/31/2005 | US20050067164 Scaling inhibitors and method for using the same in high density brines |
| 03/31/2005 | US20050067005 Thermoacoustic electric power generation |
| 03/30/2005 | EP1292758A4 Well maintenance equipment and procedure |
| 03/29/2005 | CA2240016C An apparatus for magnetically treating flowing fluids |
| 03/29/2005 | CA2108992C Process for reducing hydrate aggregation trend in process effluents |
| 03/24/2005 | US20050061506 Well Treatment System and Method |
| 03/24/2005 | US20050061503 Method for cleaning gravel packs |
| 03/24/2005 | CA2442223A1 Self-propelled swabbing device |
| 03/23/2005 | EP1208285A4 Method and apparatus for displacing drilling fluids with completion and workover fluids, and for cleaning tubular members |
| 03/23/2005 | CN2687325Y Integrated underground tool string |