| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Well reference apparatus and method | US09573584 | 2000-05-18 | US06499537B1 | 2002-12-31 | Charles H. Dewey; John E. Campbell; Wei Xu |
| The well reference apparatus and method of the present invention includes a reference member preferably permanently installed within the borehole at a preferred depth and orientation in one trip into the well. The reference member provides a permanent reference for the location of all operations, particularly in a multi-lateral well. The assembly of the present invention includes disposing the reference member on the end of a pipe string. An orienting tool such as an MWD collar is disposed in the pipe string above the reference member. This assembly is lowered into the borehole on the pipe string. Once the preferred depth is attained, the MWD is activated to determine the orientation of the reference member. If the reference member is not oriented in the preferred direction, the pipe string is rotated to align the reference member in the preferred direction. This process is repeated for further corrective action and to verify the proper orientation of the reference member. Upon achieving the proper orientation of the reference member, the reference member is set within the borehole and the pipe string is disconnected from the reference member and retrieved. | ||||||
| 222 | Field development methods | US09805611 | 2001-03-13 | US06488087B2 | 2002-12-03 | James R. Longbottom; Tommie A. Freeman |
| A field development system and associated methods provide a main wellbore intersecting a formation and having fractures extending outwardly from the main wellbore into the formation. Multiple additional wellbores, spaced apart from the main wellbore and without associated additional production facilities, intersect the fractures and provide auxiliary drainage of the formation into the main wellbore via the fractures extending outwardly therefrom. | ||||||
| 223 | Apparatus and methods for isolating a wellbore junction | US09637494 | 2000-08-11 | US06439312B1 | 2002-08-27 | Joseph E. Hess; Benji Smith |
| A wellbore junction isolation method and associated apparatus provide convenient isolation of a wellbore junction while permitting certain operations to be performed in a wellbore below the junction. In a described embodiment, a formation intersected by a main wellbore below a wellbore junction is stimulated by fracturing after installing an assembly at the wellbore junction to isolate it from pressures applied during the fracturing operation. In this embodiment, the assembly is installed in a single trip into the main wellbore. | ||||||
| 224 | Wellbores utilizing fiber optic-based sensors and operating devices | US10121375 | 2002-04-12 | US20020109080A1 | 2002-08-15 | Paulo S. Tubel; Glynn Williams; Michael H. Johnson; John W. Harrell; Jeffrey J. Lembcke; Kurt A. Hickey; Nigel Leggett |
| This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for surface treatments are measured in real time and on-line, and these measured parameters are used to control the dosage of chemicals into the surface treatment system. The information is also used to control downhole devices that may be a packer, choke, sliding sleeve, perforating device, flow control valve, completion device, an anchor or any other device. Provision is also made for control of secondary recovery operations online using the downhole sensors to monitor the reservoir conditions. The present invention also provides a method of generating motive power in a wellbore utilizing optical energy. This can be done directly or indirectly, e.g., by first producing electrical energy that is then converted to another form of energy. | ||||||
| 225 | Method of casing multilateral wells and associated apparatus | US09648998 | 2000-08-28 | US06431283B1 | 2002-08-13 | Dana R. Dale |
| A method of casing multilateral wells and associated apparatus provide increased diameter in wellbores drilled below a casing splitter. In a described embodiment, a casing splitter is positioned in a subsea wellbore with a minimum restriction of 18.565″, with the casing splitter attached at a lower end of a 13⅜″ casing string. Two 8½″ bores extend through a lower end of the casing splitter, whereby only one standard casing size is skipped due to the wellbore junction formed by the casing splitter. | ||||||
| 226 | Apparatus and method for spacing out of offshore wells | US10044397 | 2002-01-09 | US20020096331A1 | 2002-07-25 | Dwayne D. Leismer; Rodney J. Wetzel |
| An apparatus and method for use in spacing out tubular strings within a well is disclosed. In one embodiment the apparatus comprises a casing having an inner wall and at least one profile disposed within the inner wall. A landing tool is linked to well tubing and is sized so as to seat within the profile. A tubing hanger is attached to the well tubing and if capable of landing within a target location, such as a wellhead. When the landing tool is seated within the profile, the length of well tubing needed to land the tubing hanger within the target location can be determined. | ||||||
| 227 | Method and apparatus for controlling well pressure in open-ended casing | US09733226 | 2000-12-08 | US20020070027A1 | 2002-06-13 | Herve Ohmer; Ricardo M. Carossino; Jean-Marc Follini; Mikhail V. Gotlib |
| A system and method for preventing blowouts during the deployment of a casing string into a wellbore. The system includes securing a casing coupling to a casing string and securing a retrievable check valve within the casing coupling. The retrievable check valve allows fluid from the surface to be pumped through the retrievable check valve. However, the retrievable check valve prevents upward fluid flow from the wellbore through the retrievable check valve to the surface. | ||||||
| 228 | Method and apparatus for multilateral well entry | US09908949 | 2001-07-19 | US06401812B2 | 2002-06-11 | Lawrence J. Leising |
| In one embodiment, the invention relates to a method for location, or location and entry, of a lateral wellbore from a main wellbore of a multilateral hydrocarbon well, the method being characterized by unique operation of a controllably bent sub. The invention further relates to a system for location, or location and entry of a lateral wellbore, including a specialized controllably bent sub, and most preferably, to a controllably bent sub designed for efficient lateral wellbore location and/or entry. | ||||||
| 229 | Monitoring of downhole parameters and tools utilizing fiber optics | US09923059 | 2001-08-06 | US20020066309A1 | 2002-06-06 | Paulo Tubel; Brian Bidigare; Michael Johnson; John Harrell; Benn Voll |
| The present invention provides systems utilizing fiber optics for monitoring downhole parameters and the operation and conditions of downhole tools. In one system fiber optics sensors are placed in the wellbore to make distributed measurements for determining the fluid parameters including temperature, pressure, fluid flow, fluid constituents and chemical properties. Optical spectrometric sensors are employed for monitoring chemical properties in the wellbore and at the surface for chemical injection systems. Fiber optic sensors are utilized to determine formation properties including resistivity and acoustic properties compensated for temperature effects. Fiber optic sensors are used to monitor the operation and condition of downhole devices including electrical submersible pumps and flow control devices. In one embodiment, a common fluid line is used to monitor downhole parameters and to operate hydraulically-operated devices. Fiber optic sensors are also deployed to monitor the physical condition of power lines supplying high electric power to downhole equipment. A light cell disposed downhole is used to generate electric power in the wellbore, which is used to charge batteries. | ||||||
| 230 | Flow monitoring and control in multi-lateral wellbores | US09570467 | 2000-05-12 | US06364014B1 | 2002-04-02 | Terry R. Bussear |
| An apparatus for monitoring and controlling flow in offset parallel bores contained within a single completion component provides parallel bores and recesses for mounting monitoring or control devices in a single unit which is sized to fit within an 8.5″ I.D. of a 9⅝″ standard casing of an oil field wellbore. | ||||||
| 231 | Method and apparatus for all multilateral well entry | US09410153 | 1999-09-30 | US06349768B1 | 2002-02-26 | Lawrence J. Leising |
| In one embodiment, the invention relates to a method for location, or location and entry, of a lateral wellbore from a main wellbore of a multilateral hydrocarbon well, the method being characterized by unique operation of a controllably bent sub. The invention further relates to a system for location, or location and entry of a lateral wellbore, including a specialized controllably bent sub, and most preferably, to a controllably bent sub designed for efficient lateral wellbore location and/or entry. | ||||||
| 232 | Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings | US09771746 | 2001-01-29 | US20020007968A1 | 2002-01-24 | Robert Gardes |
| A method and system of drilling straight directional and multilateral wells utilizing hydraulic frictional controlled drilling, by providing concentric casing strings to define a plurality of annuli therebetween; injecting fluid down some of the annuli; returning the fluid up at least one annulus so that the return flow creates adequate hydraulic friction within the return annulus to control the return flow within the well. The hydraulic friction should be minimized on the injection side to require less hydraulic horsepower and be maximized on the return side to create the desired subsurface friction to control the well. | ||||||
| 233 | Assembly and method for locating lateral wellbores drilled from a main wellbore casing and for guiding and positioning re-entry and completion device in relation to these lateral wellbores | US09556664 | 2000-04-24 | US06315054B1 | 2001-11-13 | Charles G. Brunet |
| Assembly and method for locating lateral wellbores in a main wellbore casing for positioning completion members in the lateral wellbore and the main wellbore casing and for orientating and positioning reentry and completion devices into the lateral wellbores comprising a window formed in the wellbore casing which is defined by a sill being convergently curved up hole to the sill up hole apex, a second wellbore located proximate and in communication with the window, a tubular string and a housing member movable in the wellbore casing and connected to the tubular string, orientation and positioning member connected to the housing for orientating and positioning the housing relative to the window upon up hole movement of the housing and tubular string toward the up hole apex of the sill and tools for completion, work over, reentry, and reentry and completion being attached for their respective functions. | ||||||
| 234 | Dual diverter and orientation device for multilateral completions and method | US09552493 | 2000-04-19 | US06311776B1 | 2001-11-06 | Ronald E. Pringle; Clay W. Milligan, Jr.; Robert J. Coon |
| In a broad aspect, the invention is a downhole well tool for use within a well casing having a locking slot, an orienting profile, an alignment slot, and a lateral well bore window. The tool may broadly include a body member having a first and a second longitudinal bore extending therethrough, a diverter member extending therefrom and having a diverter surface. The second longitudinal bore extends through the diverter member. The tool may also include an outwardly-biased orienting key movably secured to the body member and engageable with the orienting profile and the alignment slot, and an outwardly-biased locking key movably secured to the body member and engageable with the locking slot. The diverter surface is aligned with the lateral well bore window when the orienting key is engaged with the alignment slot and the locking key is engaged with the locking slot. The tool also includes a first production tubing extending through the first longitudinal bore and aligned with the diverter surface, and a second production tubing extending through the second longitudinal bore. One of the first and second production tubings is releasably secured to the body member. | ||||||
| 235 | Inductively coupled method and apparatus of communicating with wellbore equipment | US09859944 | 2001-05-17 | US20010035288A1 | 2001-11-01 | Mark W. Brockman; Herve Ohmer; David L. Malone |
| A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well. | ||||||
| 236 | Positioning and conveying well apparatus and method | US09760310 | 2001-01-10 | US06302215B1 | 2001-10-16 | Mikhail Gotlib; Herve Ohmer; Mark W. Brochman |
| In a broad aspect, the invention may include a nipple, a deflector, and a conveying tool. The nipple may include an upper sealing surface and a lower sealing surface. The nipple may also include a discriminator/muleshoe having an alignment profile and an alignment slot. A protuberance/bump may be disposed in the alignment slot. The deflector may include an upper seal and a lower seal adapted for engagement with the upper and lower sealing surfaces, respectively, on the nipple. When the upper and lower seals are engaged with the upper and lower sealing surfaces, fluid circulation is substantially restricted thereby resulting in a increase in pressure that is detectable at the earth's surface. This pressure increase provides a signal that the deflector is properly positioned in the nipple. The conveying tool may include a flexible arm having a latching finger that is releasably engageable with a latching profile in the deflector. The latching profile may be on an inclined, concave surface of a whipstock. Related methods are also provided. | ||||||
| 237 | Wellbores utilizing fiber optic-based sensors and operating devices | US09778696 | 2001-02-06 | US20010020675A1 | 2001-09-13 | Paulo S. Tubel; Glynn Williams; Michael H. Johnson; John W. Harrell; Jeffrey J. Lembecke; Kurt A. Hickey; Nigel Leggett |
| This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for surface treatments are measured in real time and on-line, and these measured parameters are used to control the dosage of chemicals into the surface treatment system. The information is also used to control downhole devices that may be a packer, choke, sliding sleeve, perforating device, flow control valve, completion device, an anchor or any other device. Provision is also made for control of secondary recovery operations online using the downhole sensors to monitor the reservoir conditions. The present invention also provides a method of generating motive power in a wellbore utilizing optical energy. This can be done directly or indirectly, e.g., by first producing electrical energy that is then converted to another form of energy. | ||||||
| 238 | Monitoring of downhole parameters and tools utilizing fiber optics | US09071764 | 1998-05-01 | US06281489B1 | 2001-08-28 | Paulo S. Tubel; Glynn Williams; Michael H. Johnson; John W. Harrell; Jeffrey J. Lembcke; Kurt A. Hickey; Nigel Leggett |
| This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for surface treatments are measured in real time and on-line, and these measured parameters are used to control the dosage of chemicals into the surface treatment system. The information is also used to control downhole devices that may be a packer, choke, sliding sleeve, perforating device, flow control valve, completion device, an anchor or any other device. Provision is also made for control of secondary recovery operations online using the downhole sensors to monitor the reservoir conditions. The present invention also provides a method of generating motive power in a wellbore utilizing optical energy. This can be done directly or indirectly, e.g., by first producing electrical energy that is then converted to another form of energy. | ||||||
| 239 | Method of obtaining improved geophysical information about earth formations | US09607309 | 2000-06-29 | US06253848B1 | 2001-07-03 | Nils Reimers; John W. Harrell; James V. Leggett, III; Paulo S. Tubel |
| The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at a one or more frequencies within a range of frequencies at a plurality of spaced locations. A plurality of substantially serially spaced receivers in the wellbores and/or at s receive signals reflected by the subsurface formations. The sensors may be permanently installed in the boreholes and could be fiber optic devices. The receiver signals are processed by conventional geophysical processing methods to obtain information about the subsurface formations. This information is utilized to update any prior seismographs to obtain higher resolution seismographs. The improved seismographs are then used to determine the profiles of the production wellbores to be drilled. Borehole seismic imaging may then be used to further improve the seismographs and to plan future wellbores. Cross-well tomography may be utilized to further update the seismographs to manage the reservoirs. The permanently installed sensors may also be used to monitor the progress of fracturing in nearby wells and thereby provide the necessary information for controlling fracturing operations. | ||||||
| 240 | Apparatus for and a method of drilling a lateral borehole | US09445790 | 2000-04-21 | US06244339B1 | 2001-06-12 | Jean Paul Buytaert |
| An apparatus and method of drilling and lining a lateral borehole, the apparatus comprising first and second casing sections joined at an obliquely angled rotatable joint allowing the two sections to be rotated relative to one another so that the longitudinal axis of the first section extends through a window on the second section. | ||||||
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