CN1718998A - Tension nipple of under well logging instrument - Google Patents
Tension nipple of under well logging instrument Download PDFInfo
- Publication number
- CN1718998A CN1718998A CNA2005100440197A CN200510044019A CN1718998A CN 1718998 A CN1718998 A CN 1718998A CN A2005100440197 A CNA2005100440197 A CN A2005100440197A CN 200510044019 A CN200510044019 A CN 200510044019A CN 1718998 A CN1718998 A CN 1718998A
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- main body
- plunger
- logging instrument
- electrode system
- top connection
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Abstract
The present invention relates to an auxiliary tool of down-hole logging instrument, in particular, it is a tension short piece. It includes barrel-shaped body formed from upper joint main body, sealing bore and lower joint main body which are connected. In the interior of upper joint main body and lower joint main body the sealing disk is respectively set, on the sealing disk a plunger is fixedly connected, and between upper joint main body and sealing bore are successively connected upper connecting head, central pipe bar, medium joint, force cell sensor and sensor seat, and the force cell sensor is connected to plunger by means of signal wire.
Description
One, technical field: the present invention relates to a kind of aid of downhole logging instrument device, especially a kind of tension nipple of downhole logging instrument device.
Two, background technology: the tension nipple that is used to connect the downhole logging instrument device at present comprises the cylindrical body that top connection main body, sealing drum and lower contact main body connect to form, in upper and lower adapter body, be respectively arranged with seal disc, on seal disc, be fixedly connected with the plunger that is connected with various cables.The effect of instrument and cable about the tension nipple of this structure can only play and connect.And in the actual oil well logging process, need the stressing conditions of Real Time Observation well head and downhole cable head, be that cable is met card or instrument is met card but be difficult to sometimes distinguish.If the correct appearance form of decision problem and take measure improperly will cause cable to be broken or instrument is fallen in the well, have a strong impact on finishing smoothly of well logging work.
Three, summary of the invention: purpose of the present invention is exactly the defective that exists at prior art, provide a kind of cable head tension force that can measure in real time in its well logging process, simultaneously in real time the measuring well tension nipple of the downhole logging instrument device of the temperature of fluid and resistivity in the eyes.
Its technical scheme is: comprise the cylindrical body that top connection main body 1, sealing drum 18 and lower contact main body 20 connect to form.In upper and lower adapter body, be respectively arranged with seal disc 19, on seal disc 19, be fixedly connected with plunger 5.Between top connection main body 1 and sealing drum 18, be connected with upper binding head 4, central tube bar 12, center tap 13, load cell 14, sensor holder 15 in turn.Be externally connected to balance set 8 and anticreep shell 6 at upper binding head 4.Be provided with supporting positive cover 9, dummy piston 10 and balancing spring 11 in the belt cavity that forms between balance set 8 and the central tube bar 12, load cell is connected to plunger 5 by holding wire.
Sensor holder 15 is provided with temperature pick up jack and electrode system ring seat, and device has temperature pick up 16 and electrode system 17 respectively, and temperature pick up 16 and electrode system 17 insert plunger 5 by holding wire respectively, and is connected with control circuit by plunger 5.Described electrode system 17 comprises electrode A 2, A2 ', A3, the A3 ' that a center pole A1 and bilateral symmetry distribute ... the ball-type focusing electrode system that forms.
Be provided with oil filler point in top connection main body 1, oil filler point and central tube bar 12 internal channels connect, be provided with oil at oil filler point and block up 3, radially be provided with bolt 2 in the joint portion of top connection main body 1 and anticreep shell 6 fixing, and radially be provided with screw 7 in the joint portion of upper binding head 4 and balance set 8 fixing.
Pulling force or compressive force that cable is subjected to convert voltage signal to by load cell, deliver to multiway analog switch through amplification and pre-process circuit.The signal of temperature sense is also sent to analog switch in the same way.Aspect the obtaining of mud resistivity signal, emission current produces circuit under the control of microprocessor, through the generation emission current of overdriving, sends in the mud by No. 1 electrode, No. 2, No. 3 electrode is gathered voltage signal, and will send into analog switch after the pressure difference signal amplification processing.Analog switch is selected different signals in turn under the control of microprocessor, after data processing and A/D conversion, by microprocessor collection and output.
Effect of the present invention is passed through after the improvement that has tension nipple now, load cell, temperature pick up and a spherically focused electrode array have been installed simultaneously, can monitor the tension force situation of cable head in real time, judge that accurately downhole instrument is met card or cable is met card, so that handle timely and effectively, avoid having increased the measurement of fluid temperature (F.T.) and resistivity simultaneously owing to wrong handle that the cable that causes is broken or instrument is fallen into the consequence of down-hole, improve logging efficiency, reduced logging cost.
Four, description of drawings:
Fig. 1 is the schematic diagram of load cell;
Fig. 2 is the schematic diagram of temperature pick up;
Fig. 3 is an electrode system symmetrical distribution schematic diagram;
Fig. 4 is the circuit control block diagram that cooperates with tension nipple;
Fig. 5 is a sectional structure chart of the present invention.
Five, the specific embodiment:
With reference to the accompanying drawings the present invention is described further:
With reference to accompanying drawing 5, upper binding head 4 is connected with top connection main body 1, and upper binding head 4 other ends are connected with central tube bar 12.Central tube bar 12 passes the dummy piston 10 that supporting positive cover 9 is housed, and its other end is connected with load cell 14 by center tap 13.Balance set 8 is fixed on the upper binding head 4 by hexagon socket cap head screw 7.Balancing spring 11 is between dummy piston 10 and center tap 13.Anticreep shell 6 passes top connection main body 1, upper binding head 4 and balance set 8 and is connected with center tap 13.Interior hexagonal cylinder head bolt is used to prevent that anticreep shell 6 and center tap 13 from radially rotating.Sensor holder 15 other ends are connected with sealing drum 18, and all transmission signal lines comprise that instrument string through track, load cell line, temperature sensor line, electrode anchor line (string) collect on the seal disc 19 by sealing drum 18.Last lower contact 20 is connected other transfer of data pipe nipples of an other termination with sealing drum 18.Single stem stem plug 5 is connected on top connection main body 1 and the seal disc 19, is used for the connection of transmission signal line.This assembly radial outer periphery is a pressure balancing system, and pressure balancing system sealing and sky are enclosed within central tube bar 12 peripheries.Central tube bar 12 inside are full of silicone oil, and the instrument two ends are by stifled 3 sealings of oil.Temperature pick up 16 is contained in the centre position of sensor holder 15, and electrode system 17 is contained in the lower end position of sensor holder, and its lead-in wire enters instrument internal by substitute mode.The upper-lower seal head is kept apart balance sysmte and exocoel.The circuit part of this instrument is placed in the high speed the spread of the rumours pipe nipple that is right after under it and handles.
With reference to accompanying drawing 1, when the instrument string met obstructions card, its resistance can be delivered on the load cell, finishes by the strain-type force sensor that is contained on the instrument internal load transfer device.Strain-type force sensor sticks on 4 fixed value resistance strain meters and is connected into bridge circuit on the flexible member.V+ is a constant voltage, and when there not being tension force to do the time spent, the resistance of R1, R2, R3, four resistance of R4 is identical, thereby V01 is zero.Do the time spent as tension force, four ohmically magnitudes of voltage change, and V01 also changes, and can measure the size of tension force according to the size of its variation.The variation of sensor upper stress causes the variation of bridge circuit output voltage, and this signal is sent to ground system after handling.
Measuring principle Fig. 2 of temperature pick up: with the RTD is sensing element, and temperature pick up is exposed in the middle of the downhole fluid, realization be to measure a successive value, reflected the temperature value of well different depth point.Rt is a thermistor among the figure, adds a constant current to it, and when ambient temperature changed, the resistance of Rt just changed, thereby V02 also changes.So the magnitude of voltage of measuring V02 just can calculate ambient temperature.
Measuring principle Fig. 3 of spherically focused electrode array: Ai is an AC constant-current source, for providing a constant current between A1, A4 (A4 ') electrode.Have a voltage between A2, A3 (A2 ', A3 ') electrode, when electrode system during through different fluid, this voltage measuring value also can change thereupon, just can measure in view of the above through the resistivity of fluid.
Control circuit schematic diagram 4: pulling force or compressive force that cable is subjected to convert voltage signal to by load cell, deliver to multiway analog switch through amplification and pre-process circuit.The signal of temperature sensor senses is also sent to analog switch in the same way.The mud resistivity signal obtain more complicated.At first the circuit of emission current generation is under the control of microprocessor, through the generation emission current of overdriving.It is sent in the mud by No. 1 electrode.No. 2, No. 3 electrode is gathered voltage signal, and will deliver to analog switch after the pressure difference signal amplification processing.Analog switch is selected different signals in turn under the control of microprocessor, after data processing and A/D conversion, by microprocessor collection and output.
Claims (4)
1, a kind of tension nipple of downhole logging instrument device, comprise top connection main body (1), the cylindrical body that sealing drum (18) and lower contact main body (20) connect to form, last, be respectively arranged with seal disc (19) in the lower contact main body, on seal disc (19), be fixedly connected with plunger (5), it is characterized in that: between top connection main body (1) and sealing drum (18), be connected with upper binding head (4) in turn, central tube bar (12), center tap (13), load cell (14), sensor holder (15), be externally connected to balance set (8) and anticreep shell (6) at upper binding head (4), be provided with supporting positive cover (9) in the belt cavity that forms between balance set (8) and the central tube bar (12), dummy piston (10) and balancing spring (11), load cell is connected to plunger (5) by holding wire.
2, the tension nipple of downhole logging instrument device according to claim 1, it is characterized in that: sensor holder (15) is provided with temperature pick up jack and electrode system ring seat, device has temperature pick up (16) and electrode system (17) respectively, temperature pick up (16) and electrode system (17) insert plunger (5) by holding wire respectively, and are connected with control circuit by plunger (5).
3, the tension nipple of downhole logging instrument device according to claim 2 is characterized in that: described electrode system (17) comprises electrode (A2, A2 ', A3, the A3 ' that a center pole (A1) and bilateral symmetry distribute ...) the ball-type focusing electrode system that forms.
4, the tension nipple of downhole logging instrument device according to claim 2, it is characterized in that: be provided with oil filler point in top connection main body (1), oil filler point and central tube bar (12) internal channel connect, on oil filler point, be provided with oil stifled (3), it is fixing radially to be provided with bolt (2) in the joint portion of top connection main body (1) and anticreep shell (6), and it is fixing radially to be provided with screw (7) in the joint portion of upper binding head (4) and balance set (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100440197A CN1718998A (en) | 2005-07-07 | 2005-07-07 | Tension nipple of under well logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100440197A CN1718998A (en) | 2005-07-07 | 2005-07-07 | Tension nipple of under well logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1718998A true CN1718998A (en) | 2006-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100440197A Pending CN1718998A (en) | 2005-07-07 | 2005-07-07 | Tension nipple of under well logging instrument |
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| CN (1) | CN1718998A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322999A (en) * | 2010-05-11 | 2012-01-18 | 桑德克斯有线有限公司 | The dynamometer that is used for the downhole load survey instrument |
| CN102518427A (en) * | 2011-12-06 | 2012-06-27 | 中国石油天然气股份有限公司 | Plunger underground running state tracking system for gas production and working method thereof |
| CN102606137A (en) * | 2012-03-31 | 2012-07-25 | 中国电子科技集团公司第二十二研究所 | Three-parameter headstall logger |
| CN103244100A (en) * | 2013-04-27 | 2013-08-14 | 盘锦辽河油田裕隆实业集团有限公司 | Miniature tension logging instrument |
| CN107036749A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Passive downhole cable real-time strain monitors pipe nipple |
| CN107748028A (en) * | 2017-10-26 | 2018-03-02 | 中石化石油工程技术服务有限公司 | Drill-pipe conveyed is cored tension measuring device |
| CN108398205A (en) * | 2018-02-13 | 2018-08-14 | 中国海洋石油集团有限公司 | The graduation apparatus of tension nipple |
| CN111997590A (en) * | 2020-09-09 | 2020-11-27 | 中国石油天然气集团有限公司 | Tension nipple for logging instrument |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
| CN115405287A (en) * | 2022-08-19 | 2022-11-29 | 川南航天能源科技有限公司 | Cable tension measuring nipple of horizontal well conveying tractor and application method |
-
2005
- 2005-07-07 CN CNA2005100440197A patent/CN1718998A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322999A (en) * | 2010-05-11 | 2012-01-18 | 桑德克斯有线有限公司 | The dynamometer that is used for the downhole load survey instrument |
| US8939039B2 (en) | 2010-05-11 | 2015-01-27 | Sondex Wireline Limited | Load cell for a downhole load measuring tool |
| CN102518427A (en) * | 2011-12-06 | 2012-06-27 | 中国石油天然气股份有限公司 | Plunger underground running state tracking system for gas production and working method thereof |
| CN102606137A (en) * | 2012-03-31 | 2012-07-25 | 中国电子科技集团公司第二十二研究所 | Three-parameter headstall logger |
| CN103244100A (en) * | 2013-04-27 | 2013-08-14 | 盘锦辽河油田裕隆实业集团有限公司 | Miniature tension logging instrument |
| CN107036749A (en) * | 2016-02-04 | 2017-08-11 | 中石化石油工程技术服务有限公司 | Passive downhole cable real-time strain monitors pipe nipple |
| CN107748028A (en) * | 2017-10-26 | 2018-03-02 | 中石化石油工程技术服务有限公司 | Drill-pipe conveyed is cored tension measuring device |
| CN108398205A (en) * | 2018-02-13 | 2018-08-14 | 中国海洋石油集团有限公司 | The graduation apparatus of tension nipple |
| CN111997590A (en) * | 2020-09-09 | 2020-11-27 | 中国石油天然气集团有限公司 | Tension nipple for logging instrument |
| CN113294140A (en) * | 2021-04-15 | 2021-08-24 | 中石化石油工程技术服务有限公司 | Perforation tensiometer |
| CN115405287A (en) * | 2022-08-19 | 2022-11-29 | 川南航天能源科技有限公司 | Cable tension measuring nipple of horizontal well conveying tractor and application method |
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