CN105899758A - Downhole wireline tension measurement - Google Patents
Downhole wireline tension measurement Download PDFInfo
- Publication number
- CN105899758A CN105899758A CN201480043348.7A CN201480043348A CN105899758A CN 105899758 A CN105899758 A CN 105899758A CN 201480043348 A CN201480043348 A CN 201480043348A CN 105899758 A CN105899758 A CN 105899758A
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- Prior art keywords
- tension force
- cable
- housing
- segmentation
- sensor
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- 238000005259 measurement Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000011218 segmentation Effects 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 9
- 230000032258 transport Effects 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 238000007634 remodeling Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/007—Measuring stresses in a pipe string or casing
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Mechanical Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A downhole string and method of operating where tension in the downhole string is monitored real time so that the tension in the downhole string does not exceed its yield strength. Included with the string is a tension sub for monitoring the tension that includes a sensor in the housing of the tension sub. The sensor can be a strain gauge and can be placed proximate an upper end of the downhole string so that tension in a wireline attached to the string can also be monitored. The portion of the housing having the sensor is narrowed for enhancing sensitivity of monitoring.
Description
Cross-Reference to Related Applications
The copending United States temporary patent application sequence the 61/th submitted on July 19th, 2013 is enjoyed in the application request
The priority of 859, No. 473 and rights and interests, its entire disclosure is herein incorporated by reference the most for all purposes.
Technical field
The present invention relates generally to produce hydrocarbon from subterranean boreholes, and more particularly to the tension measuring device on cable.
Background technology
Some wellholes operation of down-hole relates to that downhole tool is arranged in cable or other transports on device.Typical down-hole
Instrument includes perforating gun, logging tool, machinery and downhole sensor.Logging tool generally measures the stratum around wellhole
Character, and generally use nuclear magnetic resonance device or radioactive source.Sound, radiation, temperature, machinery, electricity, dielectric, salinty sensor
Sometimes being also used for measuring formation properties, and have the application made great efforts for inquiring wellhole to complete, e.g., shell is attached to well by assessment
The integrity of the cement of hole wall.
Cable is generally weak than pipeline or drilling rod, and is easily separated entanglement by the tension force in wellhole or stumble
(snagging).Additionally, deeper wellhole causes added difficulty, because cable can stretch under its own weight, thus enter
One step limits the amount of the tension force can being applied to cable from downhole tool.Therefore, when downhole tool is arranged on cable,
It has to be taken care that so that put on the tension force of cable less than its yield strength.If additionally, the tension force applied exceedes bending of they
Take intensity, then other element of the connector part in the component of down-hole string such as cable head, tubing string or tubing string also can be damaged.
Summary of the invention
There is disclosed herein tension force segmentation (sub) and for controlling in the transport device for configuring downhole tool tubing string
The example of the method for tension force.The example of the tension force segmentation for using in down-hole string includes housing, is connected in the shell of cable
Box end on the end of body, the pin end on the end of the distally of box end and the housing being connected in downhole tool, and response
The sensor coupled with housing of the tension force in housing.In this example, it is arranged in down-hole and cable when downhole tool tubing string
When line is under tension force, tension force is transferred to housing and is sensed by sensor.In an example, sensor is strain gauge, but
Still optionally further, sensor is arranged in the swedged part of housing.Electronic installation can set in the housing alternatively,
For the transmission that will be sensed by sensor to ground, so that the tension force in cable can be monitored in real time.Tension force segmentation can include for
The optionally switch of the communication between offer sensor and ground and downhole tool and ground.This example also includes being positioned at sensing
The electronic installation in communication path between device and switch.Communication with ground and downhole tool can pass through housing.In embodiment
In, the upper end of housing is connected to cable head, and wherein cable head attaches to cable.
Another example of tension force segmentation for using in down-hole string includes housing, and it has and transports device connection
Connect the box end for transporting down-hole string in wellhole, and the pin end coupled with downhole tool, and sensor, itself and housing
Engage, and would correspond to tension force in the housing that sensed by sensor signal-selectivity transmit to ground.Electronic installation
May be included in housing for transmitting a signal to ground.Tension force in housing can be depending on the tension force transported in device.Transport
Device can be cable, coil pipe, steel wire rope, or combinations thereof.In this example, sensor can be deformeter, and is placed in tool
Have in a part for housing for the periphery of reduction.
The example of the method for downhole operations includes: provide tension force segmentation, the pin that it has housing, box end is relative with box end
End, and the sensor coupled with housing；Box end is coupled with cable and pin end is connected in downhole tool to limit down-hole
Tubing string；Down-hole string is arranged in wellhole；And with the tension force in Sensor monitoring housing and based on monitoring in housing
Tension force estimates the tension force in cable.The amount of the tension force being applied on cable can be adjusted based on the step of the tension force in monitoring housing
Whole.Adjust the amount of tension force being applied on cable can include wellhole controlling well by making fluid pressurize and pump fluid into
Pressure in hole.Alternately, the amount adjusting the tension force being applied on cable can relate to control to be applied on cable at ground
Pulling force.
Accompanying drawing explanation
Some in inventive feature and benefit are had been set forth, when carrying out when description combines accompanying drawing, further feature
Will become clear from benefit, in the figure:
Fig. 1 be according to the present invention on cable and the side-looking of example of the downhole tool tubing string with tension force segmentation cuts
Face figure.
Fig. 2 is the elevation of the example of the tension force segmentation of Fig. 1.
Fig. 3 is the illustrative example of the component in the tension force segmentation of Fig. 2.
Although the present invention of will be described in conjunction with that preferred embodiment, it is to be understood that it is not intended to limit the invention to this
Embodiment.On the contrary, it is intended to the institute covering in such as may be included in such as the spirit and scope of the present invention defined in the appended claims
There are alternative, remodeling and equivalent.
Detailed description of the invention
Now hereinafter with reference to illustrating that the accompanying drawing of embodiment is to be described more fully below disclosed method and system.This
Disclosed method and system in many multi-forms, and can should not be construed as limited to illustrated embodiment presented herein；
On the contrary, these embodiments provide into so that the disclosure is by for thorough and complete, and its scope is fully conveyed to this area
Technical staff.Similar numeral represents the most similar element.In an embodiment, term use about includes quoting size
+/-5%.
It will be further understood that the scope of the present disclosure is not limited to shown and that describe structure, operation, accurate material or embodiment
Accurate details because remodeling and equivalent will be obvious to those skilled in the art.In drawing and description
In, disclose one exemplary embodiment, although and employ particular terms, but they only use with common and descriptive sense,
And it is not used in the purpose of restriction.
Fig. 1 illustrates an example of the tool tubular column 10 in the deviation part being arranged on wellhole 12 with side cross-sectional.
Wellhole 12 is shown as and is formed in stratum 14.Tool tubular column 10 is arranged on cable 16, and cable 16 is shown as from being located at opening of wellhole 12
Wellhead component 18 above Kou and on ground 20 extends in wellhole 12.Optional ground trucks 22 is also illustrated as at wellhead component
On ground 22 near 18, and it is connected to the upper end of cable 16.Cable head 24 on the upper end of tool tubular column 10 provides work
Connectivity between tool tubing string 10 and cable 16.Connectivity includes the mechanical connection to cable 16, so that tool tubular column 10 can be inserted
Enter in wellhole 12 and pull up in wellhole 12.Communication device is also included by the connectivity of cable head 24, so that electric power,
Signal, data and other communication any can transmit between tool tubular column 10 and cable 16, and therefore from tool tubular column 10 to
Ground 20.For measuring the tension force segmentation 26 of tension force in tool tubular column 10 on cable head 24 side, therefore tension force segmentation 26 carries
Supply the instruction of tension force in the cable 16 near cable head 24.Additionally, tension force segmentation 26 can be surveyed along the lower end of cable 16
Amount tension force.Downhole tool 28 is shown as the connection with tension force segmentation 26 to cable head 24 and is relatively connected to the end of tension force segmentation 26
Portion.The example of downhole tool 28 includes perforating gun, logging tool, and can be at other instrument any of down-hole configuration.
The example of tension force segmentation 26 illustrates with elevational view in fig. 2, and wherein tension force segmentation 26 includes for covering and protecting
Protect the shell body 30 of component in segmentation 26.Box end 32 is shown as the upper end of tension force segmentation 26, and provides to cable head 24 (Fig. 1)
Connection, for communication between downhole tool 28 and cable 16.Electronic installation section 34 includes in this embodiment, its bag
Include electronic installation, as, it is schematically shown printed circuit board (PCB) 36.Electronic installation section 34 near box end 32, with cable
On sidepiece relative for 24 (Fig. 1).In instances, electronic installation provides the communication for tension force segmentation 26 and control function
Property.Sections of sensors 32 is shown as on the sidepiece of the electronic installation section 34 relative with box end 32 in tension force segmentation 26, and
Including sensor 39 for measuring the tension force in cable 16 (Fig. 1).In the embodiment shown, sensor 39 is shown as and housing 30
The deformeter 40 connect.In this example, deformeter 40 senses the strain in housing 30, and therefore in tubing string 10 and cable 16
Tension force.Sensor 39 can position along the cervical region 42 of housing 41 illustrating the diameter with reduction alternatively.Make sensor 39 edge
The swedged housing location measurement result to being obtained by sensor 39 provides sensitivity.The multiple sensors of offer are provided
The example of 39.Alternatively, sensor 39 can be located at away from the part of the sections of sensors 38 of cervical region 42.Further alternative it is
Including protection sleeve pipe (not shown) to prevent sensor 39 from destroying when applying torque during assembly manipulation.Sleeve pipe additionally provide by
Slide and invest on the movement weight rod being generally used in pump down operation.
Pin end 44 is shown as the connection with sections of sensors 38 to electronic installation section 34 relatively in sections of sensors 38
On end, and on the end of the part relative with box end 32.Adapter pin 46 is shown as and axially protrudes from pin end 44, is used for
Electric power and signal connectivity is provided, so the remainder of tool tubular column 10 (Fig. 1) can be with cable head 24 by tension force segmentation 26
Communicate with cable 16.
During sensor 39 is an example of deformeter 40 wherein, the electronic installation selectivity in electronic installation section 34
The resistance of deformeter 40, the tension force during wherein the measured value of resistance can reflect deformeter 40, and therefore cable cable are measured in ground
Tension force in 16.Can include the electronic installation (not shown) added, it transmits the measurement result representing record in deformeter 40
Signal, the signal wherein transmitted can send to ground 20 in real time via cable 16.In an example, including in order to protect machine
Tool sensor is from the device of the damage of the bending during the lifting of tool tubular column before entrance wellhole.Exemplary means is
Protection sleeve pipe (not shown), it also offers the junction point for additional movement weight rod, and this movement weight rod is being typically used in downward pump
Send and slide on the cable cable in operation.
Fig. 3 schematically shows the example between the sensor 39 in tension force segmentation 26, electronic installation 36 and switch 52
Property connectivity.As indicated, communication link 48 provide the communication between sensor 39 and electronic installation 36, communication link 54 provide from
Switch 52 is to the communication of downhole tool 28, and communication link 56 provides the communication from switch 52 to cable head 24.Therefore, switch
52 optionally provide the communication between sensor 39 (via electronic installation 36) and cable head 24, so that sensor 39 warp
Communicated with ground 20 by cable 16.In this example, work when tension force segmentation 26 and tonometry is entered by tension force segmentation 26
During row, switch 52 optionally terminates via communication link 54 to tool tubular column 10 and communicating to tension force segmentation 26.
In another example of operation, when downhole tool 28 for boring a hole, record or during the position of other downhole operations, switch 52
Can stop between electronic installation 36 and switch 52 by the communication of communication link 50, thus isolation sensor 39 and ground 20 is logical
Letter.Therefore, in this example, when downhole tool 28 is in operation, tonometry interrupts.Communication link 48,50,54,56
Example include electric wire, optical fiber, wireless signal and combinations thereof.Wireless signal can be any kind of ripple, e.g., radio,
Ultraviolet, microwave, sound etc..
In instances, fluid (not shown) pressurizes with pressure source 58, and is then pumped in wellhole 12, for by instrument
Tubing string 10 deeper pushes in wellhole 12 (Fig. 1).As indicated, when tool tubular column 10 is in level or the deviation part of wellhole 12
Time, it is sometimes desirable to thrust is put on tool tubular column 10.In some cases, fluid can apply tension force in tool tubular column 10,
It is transferred to cable 16, during wherein tension force exceedes any element of cable 16, cable head 24 or tool tubular column 10 one or more
Multiple yield strengths, thus one or more in cable 16, cable head 24 or tool tubular column 10 produces disconnect, point
From and/or rupture.If completely or partially the becoming of tool tubular column 10 separates with cable 16, the most typically need fishing
Tool tubular column 10 is fetched from wellhole 12.Tool tubular column 10 neutral line cable end 24 as provided by tension force segmentation 26 is attached as described above
Measuring in real time of near tension force can the pump down operation of optimization tool tubing string 10.Such as, due to by the fluid density changed, well
Difficulty when conditions down-hole is modeled that the change of the deviation in hole 12 and the elongation of cable 16 cause, therefore the operation pressure specified can
It is not enough to operation.Not enough pressure in wellhole 12 is caused by difficulty listed above, and tool tubular column 10 can be changed into and is stuck in well
In hole 12, or under sufficiently high speed, do not advance through wellhole 12.Alternately, modeling may result in the pump under excess pressure
Send, thus have the risk of the down-hole fault of cable 16, tool tubular column 10 or cable head 24.As an alternative, possible fault pre-
At term area or safely the monitoring in real time of the tension force below this expected areas allows operator's pump flow under a certain pressure
Body, thus tool tubular column 10 with or move close to maximum rate, and do not make the risk that tool tubular column 10 separates with cable 16.This
Outward, by knowing the tension force in tool tubular column 10, operator can not only carry out the adjustment of fluid pressure, and carry out flow rate and/
Or the adjustment of fluid properties, e.g., the density of cable 16 and speed.Alternatively, the amount of pulling force can be controlled, its from ground trucks 22
The spool (not shown) being associated is applied on cable 16；Wherein to the amount of the control of power based on housing 20 (Fig. 2) and therefore cable
The tension adjustment of monitoring in line 16.
Therefore, the present invention specifically described herein is well adapted for carrying out purpose, and reaches target and the advantage mentioned, and
The most intrinsic additional objects and advantages.Although presently preferred embodiment of the invention is given for purposes of this disclosure, but
Many changes are present in the details of program for realizing desired result.Such as, substituting cable 16, coil pipe or steel wire rope can be used
Make to transport device for being arranged in wellhole 12 by down-hole string 10.Additionally, due to the embodiment of disclosed tension force segmentation is abundant
Steadily and surely, thus the down-hole string 10 being associated can run together with destructor, including plug, packer, parting tool and perforation
Rifle.Self easily will be proposed to those skilled in the art by these and other similar remodeling, and is intended to be included in public herein
In the spirit and scope of the appended claims of the present invention opened.
Claims (17)
1. for the tension force segmentation used in down-hole string, including:
Housing；
Box end on the end of the described housing being connected in cable；
Pin end on the end of described housing, it is in described box end distally and is connected in downhole tool；And
The sensor coupled with described housing, it is in response to the tension force in described housing, so that being arranged at described down-hole string
In down-hole and when described cable is under tension force, described tension force is transferred to described housing and is sensed by described sensor.
Tension force segmentation the most according to claim 1, it is characterised in that described sensor includes strain gauge.
Tension force segmentation the most according to claim 1, it is characterised in that the reduction that described sensor is arranged on described housing is straight
On path portion.
Tension force segmentation the most according to claim 1, it is characterised in that described tension force segmentation also includes the electricity in described housing
Sub-device, the transmission being used for be sensed by described sensor is to ground, so that the tension force in described cable can be monitored in real time.
Tension force segmentation the most according to claim 1, it is characterised in that described tension force segmentation also includes for optionally carrying
Switch for the communication between described sensor and ground and between described downhole tool and ground.
Tension force segmentation the most according to claim 5, it is characterised in that described tension force segmentation also includes described sensor and institute
State the electronic installation in the communication path between switch.
Tension force segmentation the most according to claim 1, it is characterised in that the communication with ground and described downhole tool is by institute
State housing.
Tension force segmentation the most according to claim 1, it is characterised in that the upper end of described housing is connected to cable head, wherein
Described cable head attaches to described cable.
9. for the tension force segmentation used in down-hole string, including:
Housing, it has and transports device and couple the box end for transporting described down-hole string in wellhole, and with down-hole work
The pin end that tool couples；And
Sensor, it engages with described housing, and would correspond to tension force in the described housing that sensed by described sensor
The transmission of signal-selectivity ground is to ground.
Tension force segmentation the most according to claim 9, it is characterised in that described tension force segmentation also includes for by described letter
Number transmission is to the electronic installation in the described housing on ground.
11. tension force segmentations according to claim 9, it is characterised in that the described tension force in described housing depends on described
Transport the tension force in device.
12. tension force segmentations according to claim 9, it is characterised in that described transport device includes selecting free cable, dish
The element of the group that pipe, steel wire rope and combinations thereof are constituted.
13. tension force segmentations according to claim 9, it is characterised in that described sensor includes deformeter, and wherein institute
State deformeter to be placed in a part with the described housing reducing periphery.
The method of 14. 1 kinds of downhole operations, including:
Tension force segmentation, the pin end that it has housing, box end is relative with described box end, and the biography coupled with described housing are provided
Sensor；
Described box end is coupled with cable and described pin end is connected in downhole tool to limit down-hole string；
Described down-hole string is arranged in wellhole；And
With the tension force in housing described in described Sensor monitoring and estimate described based on the described tension force of monitoring in described housing
Tension force in cable.
15. methods according to claim 14, it is characterised in that described method also includes based on monitoring in described housing
The step of tension force adjusts the amount of the tension force being applied on described cable.
16. methods according to claim 15, it is characterised in that adjust the institute of the amount of the tension force being applied on described cable
State step to include by making fluid pressurize and described fluid is pumped in described wellhole the pressure controlling in described wellhole.
17. methods according to claim 15, it is characterised in that adjust the institute of the amount of the tension force being applied on described cable
State the pulling force that step includes controlling to be applied on described cable at ground.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361859473P | 2013-07-29 | 2013-07-29 | |
| US61/859473 | 2013-07-29 | ||
| US14/145,251 US20150027736A1 (en) | 2013-07-29 | 2013-12-31 | Downhole wireline tension measurement |
| US14/145251 | 2013-12-31 | ||
| PCT/US2014/048372 WO2015017310A2 (en) | 2013-07-29 | 2014-07-28 | Downhole wireline tension measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105899758A true CN105899758A (en) | 2016-08-24 |
Family
ID=52389509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480043348.7A Pending CN105899758A (en) | 2013-07-29 | 2014-07-28 | Downhole wireline tension measurement |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150027736A1 (en) |
| EP (1) | EP3027850A2 (en) |
| CN (1) | CN105899758A (en) |
| CA (1) | CA2919121A1 (en) |
| WO (1) | WO2015017310A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2621113A1 (en) * | 2012-01-26 | 2013-07-31 | Vetco Gray Controls Limited | Communicaton in a subsea well control system |
| WO2014099723A1 (en) * | 2012-12-18 | 2014-06-26 | Schlumberger Canada Limited | Pump down conveyance |
| US9376906B2 (en) * | 2012-12-20 | 2016-06-28 | Schlumberger Technology Corporation | Downhole cable sensor |
| US9410419B2 (en) * | 2013-09-26 | 2016-08-09 | Halliburton Energy Services, Inc. | Device for measuring and transmitting downhole tension |
| US10064712B2 (en) | 2015-06-04 | 2018-09-04 | Rose Acre Farms, Inc. | Avian beak trimming device |
| US11066922B2 (en) * | 2015-09-15 | 2021-07-20 | Schlumberger Technology Corporation | Mounting electronics and monitoring strain of electronics |
| WO2017132287A1 (en) * | 2016-01-25 | 2017-08-03 | Impact Selector International, Llc | Downhole tension sensing apparatus |
| WO2017132272A1 (en) * | 2016-01-25 | 2017-08-03 | Impact Selector International, Llc | Downhole tension sensing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4647853A (en) * | 1983-09-30 | 1987-03-03 | Teleco Oilfield Services Inc. | Mud turbine tachometer |
| US20030075329A1 (en) * | 2001-10-18 | 2003-04-24 | Core Laboratories, Inc. | Apparatus and methods for jarring |
| CN2821155Y (en) * | 2005-07-07 | 2006-09-27 | 中国石化集团胜利石油管理局测井公司 | Tension short joint of downhole logging instrument |
| CN101542071A (en) * | 2007-03-07 | 2009-09-23 | 普拉德研究及开发股份有限公司 | Downhole load cell |
| CN201934092U (en) * | 2011-01-18 | 2011-08-17 | 张培元 | Well logging depth tension acquisition instrument |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3507478A (en) * | 1967-09-07 | 1970-04-21 | Schlumberger Technology Corp | Apparatus for handling well tool cables |
| FR2430003A1 (en) * | 1978-06-30 | 1980-01-25 | Schlumberger Prospection | DEVICE FOR MEASURING THE BACKGROUND VOLTAGE APPLIED TO A CABLE |
| DE69226903T2 (en) * | 1991-06-14 | 1999-04-15 | Baker Hughes Inc | Pressurized downhole tool system |
| US6206108B1 (en) * | 1995-01-12 | 2001-03-27 | Baker Hughes Incorporated | Drilling system with integrated bottom hole assembly |
| US7983113B2 (en) * | 2005-03-29 | 2011-07-19 | Baker Hughes Incorporated | Method and apparatus for downlink communication using dynamic threshold values for detecting transmitted signals |
-
2013
- 2013-12-31 US US14/145,251 patent/US20150027736A1/en not_active Abandoned
-
2014
- 2014-07-28 WO PCT/US2014/048372 patent/WO2015017310A2/en active Application Filing
- 2014-07-28 CA CA2919121A patent/CA2919121A1/en not_active Abandoned
- 2014-07-28 EP EP14750285.0A patent/EP3027850A2/en not_active Ceased
- 2014-07-28 CN CN201480043348.7A patent/CN105899758A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4647853A (en) * | 1983-09-30 | 1987-03-03 | Teleco Oilfield Services Inc. | Mud turbine tachometer |
| US20030075329A1 (en) * | 2001-10-18 | 2003-04-24 | Core Laboratories, Inc. | Apparatus and methods for jarring |
| CN2821155Y (en) * | 2005-07-07 | 2006-09-27 | 中国石化集团胜利石油管理局测井公司 | Tension short joint of downhole logging instrument |
| CN101542071A (en) * | 2007-03-07 | 2009-09-23 | 普拉德研究及开发股份有限公司 | Downhole load cell |
| CN201934092U (en) * | 2011-01-18 | 2011-08-17 | 张培元 | Well logging depth tension acquisition instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150027736A1 (en) | 2015-01-29 |
| EP3027850A2 (en) | 2016-06-08 |
| WO2015017310A3 (en) | 2015-10-29 |
| CA2919121A1 (en) | 2015-02-05 |
| WO2015017310A2 (en) | 2015-02-05 |
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| BRPI0917639B1 (en) | USER IN A WELL, AND USER IN A WELL. |
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Application publication date: 20160824 |