CN2230350Y - Pull-against type combined underground well-logging instrument - Google Patents
Pull-against type combined underground well-logging instrument Download PDFInfo
- Publication number
- CN2230350Y CN2230350Y CN 95234272 CN95234272U CN2230350Y CN 2230350 Y CN2230350 Y CN 2230350Y CN 95234272 CN95234272 CN 95234272 CN 95234272 U CN95234272 U CN 95234272U CN 2230350 Y CN2230350 Y CN 2230350Y
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- instrument
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- hole
- slide bar
- pole plate
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Abstract
The utility model relates to a pull-against type combined underground well-logging instrument, comprising a housing assembly, an upper protecting cap, a lower protecting cap, a multi-core plug-in component, a power device and a measuring device. The measuring device comprise a polar plate, a polar plate connecting rod, four well-diameter rods, a push rod, a well-diameter sliding rod, slide wire resistances, etc. The main improvements are that the terminal end of the polar plate connecting rod is connected with a drive rod by a transitional device; meanwhile, a set of leaf springs is arranged as the supporting force of the polar plate connecting rod. The transitional device comprises a movable bracket, sets of sliding rods, a compression spring, a transitional rod and a fixing bracket. The upper part of the housing wall of the instrument is added with balancing pipes. The key fitting sleeve of the multi-core plug-in component is provided with a long keyway slotting. The upper and the lower protecting caps are connected with the housing by an anti-rotation structure, etc. The complete set of instrument has the advantages of reliable performance and convenience for installing and maintaining. The connection of the utility model and a ground instrument can achieve the requirements of measuring a well diameter and partitioning a stratum.
Description
The utility model is the borehole logging tool instrument of windowing, and is in particular a kind of pushing type combination logging down-hole instrument of measuring hole diameter and being used for dividing the stratum.
In drilling process, because the immersion of mud, the formation of mud cake, dwindling and collapsing of well usually caused by swelling or dissolving in the rock stratum, in order to obtain hole diameter data accurately, existing caliper is the change transitions of hole diameter a changes in resistance, pass to certain electric current then, measure the size that the variation of potential difference on it obtains hole diameter.Microelectrode system is a kind of in the electrical log, be that electrode system is done to press to the borehole wall on a pole plate, make supply current flow to the stratum, the microinverse curve that records, micronormal can reflect the minor variations of formation resistivity, for thin strate good vertical resolution is arranged, therefore can be used for dividing the stratum, existing pushing type combination logging tool is that caliper and microelectrode system organically are incorporated into one, can obtain hole diameter numerical value, the microelectrode curve be can record again, down-hole instrument and ground instrument two parts divided.The down-hole instrument is by upper and lower helmet, housing, multicore plug-in unit and join strong cover, power section, measure portion and form.Power section is motor to be rotatablely moved be transformed into axially reciprocating, drive measure portion, measure portion comprises four hole diameter bars and measuring resistance, be connected on the drive link of power section by pushing away to put away sports equipment, wherein a hole diameter bar is connected with a pole plate, pole plate is connected on the drive link by the pole plate connecting rod, and the reciprocating motion by drive link is opened hole diameter bar, pole plate or drawn in.In application process, there is following deficiency in this device, and (1) pole plate is stated bar (rigid support) by pole plate and is connected on the drive link, can not adapt to the borehole wall neatly and change; (2) because down-hole pressure is big, thereby inside and outside pressure difference of down-hole instrument, the time one can influence the work of motor internal for a long time; (3) joining of multicore plug-in unit strong is enclosed within that circuit tangles easily when being connected with ground instrument, and multicore plug-in unit end face do not expose, and is not easy to check easy wrong plug; Inconvenience when (4) upper and lower helmet connects with housing needs two sections to rotate simultaneously.Owing to above-mentioned deficiency, influenced the functional performance of instrument.
The purpose of this utility model is to overcome the deficiency that prior art exists and provide a kind of easy to use, the pushing type combination logging down-hole instrument that performance is better.
Pushing type combination logging down-hole instrument, comprise housing assembly, last helmet, following helmet, multicore plug-in unit and join the key cover, power set, measurement mechanism, measurement mechanism comprises pole plate, the pole plate connecting rod, four hole diameter bars, push away and put away sports equipment, well through slide bar and on spring, resistance, pushing away puts away sports equipment is fixed on the drive link of power set, hinged with well through bar, a well wherein is hinged through bar and pole plate, feature is that the pole plate connecting rod end is connected on the drive link by a transition apparatus, have a groove and leaf spring composition on the pole plate connecting rod and be slidingly connected, the other end of leaf spring group is fixed on the housing.
The above transition apparatus is made up of movable stand, slide bar group, compression spring, transiting rod, fixed mount, movable stand and pole plate rod hinge connection, fixed mount is fixed on the housing, the slide bar group is fixed on the housing and between fixed mount, transiting rod one end is fixed on the drive link, and an end is enclosed within on the slide bar group, has the compression spring on the slide bar group, the other end of movable stand is enclosed within the slide bar group, can move back and forth with drive link along the slide bar group.
On housing, be provided with the debugging hole, be easy for installation and maintenance corresponding to leaf spring group, slide bar group place.
On the housing wall between top multicore plug-in unit and power set, be added with balance pipe, be used for the pressure reduction between inside and outside of balance instrument, the protection motor.
The key of joining at the multicore plug-in unit that is positioned at instrument top, bottom overlaps a side and has long keyseat.
Be being connected between convenient upper and lower helmet and housing, the junction is provided with anti-rotation structure.
Below in conjunction with description of drawings,
Fig. 1 is a positional structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of measurement mechanism.
Fig. 3 installs the structural representation at balance pipe place.
Fig. 4 joins key nested structure schematic diagram.
Fig. 5 is an anti-rotation structure
Among the figure, 1 time helmet, 2,14 multicore plug-in units are joined the key cover, 3 hole diameter slide bars, 4 hole diameter bars, 5 push away and put away sports equipment, 6 drive links, 7 pole plates, 8 pole plate connecting rods, 9 slide bar groups, 10 transmission nuts, 11 drive lead screws, 12 motors, 13 balance pipes, helmet on 15,16 movable stands, 17 transiting rods, 18 compression springs, 19 adjusting rods, 20 leaf spring groups, 21 fixed mounts, 22 housing assemblies, 23 balance pipe supports, 24 debugging holes, 25 long keyseats, 26 plus couplings, 27 little snap rings, 28 little baffle rings, 29 minor thread covers, 30 back-up rings, 31 sealing rings, 32 walk spool, 33 holes, 34,35 housings.
Fig. 1 illustrates the approximate location annexation of each parts, power set adopt a kind of structure of prior art, are mainly realized the axially reciprocating of drive link by adjusting rod 19 on motor 12, drive lead screw 11, transmission nut 10, drive link 6, the drive link 6 (being used to regulate the gap) or the like.The hole diameter bar has four, and between bar apart 90 °, wherein a hole diameter bar is connected with pole plate 7.A whole set of instrument is with the different of prior art,
(1) measuring device part.Pole plate connecting rod 8 ends are not to be directly connected on the drive link 6 as shown in Figure 2, and by following transition apparatus realization, a terminal hinged movable stand 16 of pole plate connecting rod 8, fixed mount 21 is fixed on the housing 34, and a slide bar group 9 is fixed on 21 of housing 35 and fixed mounts, and transiting rod 17 1 ends are fixed on the drive link 6, one end is enclosed within on the slide bar group, have compression spring 18 on the slide bar group, movable stand 16 is enclosed within on the slide bar group, can move back and forth with drive link 6 along the slide bar group.Simultaneously a leaf spring group 20, one ends are set in addition and are fixed on the housing, the other end can slide on the groove of pole plate connecting rod 8.The pole plate connecting rod end is under the resiliency supported, changes through the easier adaptation borehole wall of original rigid support.
When motor just changes, movable stand 16 is passed on the pole plate connecting rod 8 by the thrust of transiting rod 17 and compression spring 18, and be subjected to leaf spring group 20 holder power, make pole plate 7 move right and extrapolate, compression spring on the hole diameter slide bar 3 moves hole diameter bar 4 up times simultaneously, thereby make the pole plate right side draw extrapolation, pole plate 7 is close to the borehole wall like this, and other hole diameter bars also all outwards open.When mobile logger was logged well, pole plate 7 and hole diameter bar 4 carried out elastic movement along well radius variations.During the motor counter-rotating, pole plate, hole diameter bar collapse in the Instrument shell.
(2) on housing assembly 22 corresponding to leaf spring group 20, slide bar group 9 places be provided with the debugging hole 24.
(3) on the housing wall between top multicore plug-in unit and power set, be provided with balance pipe 13, and support by balance pipe support 23.
(4) top shown in Figure 4 multicore plug-in unit is joined key nested structure schematic diagram.Open a long key 25 of inserting in a side of joining key cover 14, circuit tangled when it can prevent effectively that the down-hole instrument from connecting with ground instrument, and it is concordant with steel housing end face to join key cover end face, thereby multicore (13 core) plug-in unit end face is exposed, and is convenient to grafting, the inspection of components and parts.When it is connected with last helmet 15, add a plus couplings 26 by screw thread on the shell of joining key cover end, this plus couplings end is longer than and is joined key cover end, is connected with last helmet by it.There is shown plus couplings 26.Bottom multicore plug-in unit is joined key and is overlapped 2 structures therewith together.
(5) be illustrated in figure 5 as down the anti-rotation structure of helmet and housing junction, this anti-rotation structure is by lesser calorie ring 27, little baffle ring 28, minor thread cover 29, back-up ring 30 is formed, during connection, the shell of following helmet 1 and housing assembly 22 are overlapping a bit of, on the housing 22 that is positioned at internal layer, fix little baffle ring 28, lesser calorie ring 27, in order to stop minor thread cover 29, little snap ring is formed by the two halves butt joint, back-up ring 30 is used for fixing the little snap ring of two halves, be positioned on the outer casing inner wall of outer field down helmet and be threaded, when connecting, be inserted in the hole 33 that minor thread puts with instrument, rotation minor thread cover makes wherein one section to push away forward simultaneously, they can be linked up easily, need not rotate two sections shell steel pipes like this.
(6) corresponding to measuring device part, be exposed in the mud when logging well for avoiding the circuit in the housing, design stainless steel and walked spool, circuit is placed wherein.
(7) for adapting to the logging requirements of slim-hole oil well (general oil pipe specification is 3 cun or 3 cun half), external diameter is reduced to 80mm, selects for use the 35CrMo steel to make housing, reaches certain voltage endurance capability.
Advantage of the present utility model: performance is more reliable, and installation, maintenance is convenient, and external diameter is little, Also be applicable to the slim-hole oil well.
Claims (8)
1, pushing type combination logging down-hole instrument, comprise housing assembly (22), last helmet (15), following helmet (1), multicore plug-in unit and join key cover (2), (14), power set, measurement mechanism, measurement mechanism comprises pole plate (7), pole plate connecting rod (8), four hole diameter bars (4), push away put away sports equipment (5), hole diameter slide bar (3), the hole diameter slide bar has spring on (3), resistance, push away on the drive link (6) that put away sports equipment (5) be fixed to power set, hinged with hole diameter bar (4), a hole diameter bar (4) wherein is hinged with pole plate (7), it is characterized in that pole plate connecting rod (8) end is connected on the drive link (6) by a transition apparatus, pole plate connecting rod (8) has groove and becomes to be slidingly connected with a leaf spring group (20), and the other end of leaf spring group (20) is fixed on the housing.
2, down-hole according to claim 1 instrument, it is characterized in that described transition apparatus is by movable stand (16), slide bar group (9), compression spring (18), transiting rod (17), fixed mount (21) is formed, movable stand (16) is hinged with pole plate connecting rod (8), fixed mount (21) is fixed on the housing (34), slide bar group (9) is fixed between housing (35) and fixed mount, transiting rod (17) one ends are fixed on the drive link (6), one end is enclosed within on the slide bar group, have compression spring (18) on the slide bar group, the movable stand other end is enclosed within on the slide bar group, can move back and forth with drive link along the slide bar group.
3,, be characterised in that on housing and locate to be provided with debugging hole (24) corresponding to leaf spring group (20), slide bar group (9) according to claim 1,2 described down-hole instrument.
4, down-hole according to claim 1 instrument is characterised in that to be added with balance pipe (13) on the housing wall between top multicore plug-in unit and power set, and is supported by balance pipe support (23).
5, down-hole according to claim 1 instrument is characterised in that in a side of joining key cover (2), (4) of described multicore plug-in unit and drives a long keyseat (25).
6,, be characterised in that joining key cover (2), (4) divides concordantly with its housing end face in addition, adds a plus couplings (26) respectively with last helmet, helmet is connected down on its housing according to claim 1,5 described down-hole instrument.
7, down-hole according to claim 1 instrument, be characterised in that helmet (15) is with housing, when helmet (1) connects respectively with housing down, two sections joint is overlapping, have anti-rotation structure on one joint, be threaded on another joint, this anti-rotation structure is made up of little snap ring (27), little baffle ring (28), minor thread cover (29), back-up ring (30), and back-up ring (30) places on the little snap ring (27).
8, down-hole according to claim 1 instrument is characterised in that its external diameter is 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234272 CN2230350Y (en) | 1995-07-10 | 1995-07-10 | Pull-against type combined underground well-logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95234272 CN2230350Y (en) | 1995-07-10 | 1995-07-10 | Pull-against type combined underground well-logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230350Y true CN2230350Y (en) | 1996-07-03 |
Family
ID=33878232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95234272 Expired - Fee Related CN2230350Y (en) | 1995-07-10 | 1995-07-10 | Pull-against type combined underground well-logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230350Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359372A (en) * | 2011-11-11 | 2012-02-22 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN101006248B (en) * | 2004-06-18 | 2016-01-13 | 普拉德研究及开发股份有限公司 | The apparatus and method of locating in the wellbore |
| CN106321077A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Four-arm microelectrode measuring instrument for borehole diameters |
| CN108868750A (en) * | 2018-09-03 | 2018-11-23 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | The pressure equaliser of caliper underground survey |
-
1995
- 1995-07-10 CN CN 95234272 patent/CN2230350Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101006248B (en) * | 2004-06-18 | 2016-01-13 | 普拉德研究及开发股份有限公司 | The apparatus and method of locating in the wellbore |
| CN102359372A (en) * | 2011-11-11 | 2012-02-22 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN102359372B (en) * | 2011-11-11 | 2013-11-13 | 郑州宜源翔石油科技有限公司 | Horizontal sidewall contact device |
| CN106321077A (en) * | 2015-07-02 | 2017-01-11 | 中石化石油工程技术服务有限公司 | Four-arm microelectrode measuring instrument for borehole diameters |
| CN108868750A (en) * | 2018-09-03 | 2018-11-23 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | The pressure equaliser of caliper underground survey |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |