CN202108503U - Three-core shock-resistant bridle for cable of magnetic locator - Google Patents
Three-core shock-resistant bridle for cable of magnetic locator Download PDFInfo
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- CN202108503U CN202108503U CN2011202242420U CN201120224242U CN202108503U CN 202108503 U CN202108503 U CN 202108503U CN 2011202242420 U CN2011202242420 U CN 2011202242420U CN 201120224242 U CN201120224242 U CN 201120224242U CN 202108503 U CN202108503 U CN 202108503U
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- core
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- cable head
- sealing wire
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Abstract
The utility model provides a three-core shock-resistant bridle for the cable of a magnetic locator. The three-core shock-resistant bridle comprises a cable head joint, a three-core cable accommodating pup joint and a three-core sealing joint, wherein the cable is connected to the front end of the cable head joint; the rear end of the cable head joint is fixedly connected with the three-core cable accommodating pup joint; a cable cap is fixed in the cable head joint; a tapered through hole is formed in the cable cap; a front taper sleeve and a second taper sleeve are arranged in the tapered through hole; the first taper sleeve is in clearance fit with the tapered through hole; the three-core cable accommodating pup joint is fixedly connected with the three-core sealing joint through a first collar; a sealed lead wire pillar is in sealed connected with the three-core sealing joint; a three-core socket assembly and a double-head contact pin are also arranged in the three-core sealing joint; the three-core sealing joint is connected with the upper joint of a magnetic locator assembly through a second collar; and the cable is connected to the magnetic locator assembly after penetrating the sealed lead wire pillar, the three-core socket assembly and the double-head contact pin. The utility model has the advantages that the loading capacity of the cable is enhanced; and the shock-resistant intensity of the cable is reduced.
Description
Technical field
The utility model relates to the drilling depth of oil gas well to be measured, and is specially a kind of three core antidetonation cable head harness that are used for magnetic orientator.
Background technology
Magnetic orientator is a kind of instrument of measuring oil gas well boring inner sleeve box cupling position, and its critical piece is made up of the permanent magnet and the coil that are contained in the insulation crust.During use magnetic orientator is installed on the perforating gun; When magnetic orientator moves in well along with perforating gun and passes through casing coupling; Because box cupling place sleeve pipe is thicker, can change the distribution of magnet surrounding magnetic field, so just makes the magnetic flux that passes the magnetic orientator interior loop change and produce induced electromotive force; Note the induced-current size of generation; Just can obtain the curve of a casing coupling,, cooperate the radioactive logging curve just can accurately confirm the position of perforation in the well again according to this casing coupling curve.But; Therefore present magnetic orientator adopts the single-core cable head harness to be connected with cable more, and have following defective: 1, shock-damping structure is unreasonable, bearing capacity a little less than; When receiving the influencing of high-strength impact, vibration, transmit signal and occur unsettled situation easily; 2, bonding strength is not enough, occurs the situation of cable breakage easily, because cable is directly linked to each other with the joint of magnetic orientator assembly, the contact pin of blank area is hit curvedly easily when being collided, and assembling and maintenance are all compared difficult.
The utility model content
To above-mentioned deficiency of the prior art, the main purpose of the utility model is to solve present magnetic orientator can influence the problem of certainty of measurement when being given a shock, and a kind of three core antidetonation cable head harness that can improve the magnetic orientator anti-seismic performance are provided.
The technical scheme of the utility model: be used for three core antidetonation cable head harness of magnetic orientator, it is characterized in that, comprise that inside is equipped with the cable head joint of cavity, three cores hold line pipe nipple and three core seal nipples; The front end of cable head joint inserts cable, and the rear end of cable head joint and three cores hold the line pipe nipple and are connected, and the cavity that three cores hold the line pipe nipple is communicated with the cavity of cable head joint; In the cable head joint, be fixed with cable cap through jackscrew; In cable cap, be provided with pre-small post-large conical through-hole; In this conical through-hole, be provided with first tapered sleeve and second tapered sleeve that are used for stube cable, said first tapered sleeve be enclosed within second tapered sleeve outer and with said conical through-hole matched in clearance; The other end that said three cores hold the line pipe nipple is connected through first box cupling and three core seal nipples; On three core seal nipples, be sealedly connected with the sealing wire post; One end of said sealing wire post is positioned at the inner chamber that three cores hold the line pipe nipple, and the other end of sealing wire post is arranged in the inner chamber of three core seal nipples; In three core seal nipples, also be provided with the three core socket assemblies and the double end contact pin that are used for stube cable, the other end of three core seal nipples is connected with the top connection of magnetic orientator assembly through second box cupling; The cable that inserts from the cable head joint is connected to the magnetic orientator assembly successively behind sealing wire post, three core socket assemblies and double end contact pin.
The three core antidetonation cable head harness of the utility model come stube cable through the head harness that setting has three cores (sealing wire post, three core socket assemblies, double end contact pin), make the stable transfer that cable can the one-level one-level, have strengthened the bearing capacity of cable; And come the outer field wire of stube cable through two tapered sleeves, reduced the accident that cable is broken.
Further technical scheme also is with seal rubber sleeve on the sealing wire post.Can play the insulation protection effect to the sealing wire post through seal rubber sleeve, prevent to produce the situation of electric leakage.
Further technical scheme, said sealing wire post is tightly connected through O-ring seals and three core seal nipples.The effect that sealing ring here is set is three cores are held the inner chamber of line pipe nipple and the inner chamber partition of three core seal nipples, makes the terminals of sealing wire post and the terminals of three core socket assemblies and double end contact pin separate, and reaches the purpose that strengthens anti-pressure ability.
With respect to prior art, the utlity model has following beneficial effect:
1, anti-seismic performance is good: the utility model has connected three-core cable Malong head through the top at the magnetic orientator assembly; Link to each other with cable with three-core cable Malong head; Making cable pass from the passage in the head of three-core cable Malong links to each other with the magnetic orientator assembly again; Thereby played the effect of protection cable, shock resistance is stronger.
2, strengthened bearing capacity; Bonding strength is higher: because the top of head is provided with the tapered sleeve that is specifically designed to stube cable in the three-core cable Malong; Has solved cable and connected the unstable problem of fracture easily, and the inside of head has also set gradually the stem of sealing in the three-core cable Malong, the one-level one-level to extending below; Therefore strengthen the anti-pressure ability of position indicator, reduced the interference of external environment condition.
3, reduce the rate of breakdown of position indicator, reduced maintenance cost.
Description of drawings
Fig. 1 is the structure sectional view of the utility model three core antidetonation cable head harness.
Fig. 2 is a kind of magnetic orientator that uses the utility model three core antidetonation cable head harness.
Among the figure, 1-cable head joint, 2-three cores hold line pipe nipple, 3-three core seal nipples, 4-jackscrew, 5-cable cap; 6-conical through-hole, 71-the first tapered sleeve, 72-the second tapered sleeve, 8-the first box cupling, 9-sealing wire post, 10-three core socket assemblies; 11-double end contact pin, 12-the second box cupling, the top connection of 13-magnetic orientator assembly, 14-seal rubber sleeve, 15-O-ring seals, 16-shell; 17-probe assembly, the lower contact of 18-magnetic orientator, 19-differential thread box cupling, 20-perforating gun connector, 21-rifle head connecting rod core; 22-rifle head connects union, 23-union thread protector, 24-connection-core insulation tube, 25-lining, 26-spring; 27-copper packing, 28-crash roll, 29-felt pad, 30-O-ring seals, 31-spring washer.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
As depicted in figs. 1 and 2, a kind of three core antidetonation cable head harness that are used for magnetic orientator comprise that inside is equipped with the cable head joint 1 of cavity, three cores hold line pipe nipple 2 and three core seal nipples 3; The front end of cable head joint 1 is provided with opening and is used to insert cable, and the rear end of cable head joint 1 is threaded with the front end that three cores hold line pipe nipple 2, and the cavity that three cores hold line pipe nipple 2 is communicated with the cavity of cable head joint 1.Rear portion at cable head joint 1 inner chamber is fixed with cable cap 5 through jackscrew 4; In cable cap 5, be provided with pre-small post-large conical through-hole 6; In this conical through-hole 6, be provided with first tapered sleeve 71 and second tapered sleeve 72; Said first tapered sleeve 71 be enclosed within second tapered sleeve 72 outer and with said conical through-hole 6 matched in clearance, after the cable that inserts from cable head joint 1 front end penetrated the inner chamber of cable head joint 1, the steel wire of cable outer layer was wrapped on described first tapered sleeve 71 and second tapered sleeve 72 and strains; Make the stressed of cable can share on its outside layer of steel wire like this, can prevent that the copper wire of internal layer from being broken; The copper wire that cable internal layer after separated is used for conducted signal passes cable head joint 1 and enters into three cores and hold in the line pipe nipple 2.The other end (being the rear end) that said three cores hold line pipe nipple 2 is threaded with three core seal nipples 3 through first box cupling 8; Inwall at first box cupling 8 is provided with internal thread; On the termination of three cores appearance line pipe nipple 2 and three core seal nipples 3, be equipped with external screw thread, can realize quick connection so when mounted.Front end at three core seal nipples 3 is sealedly connected with sealing wire post 9 through O-ring seals 15; One end of said sealing wire post 9 is positioned at the inner chamber that three cores hold line pipe nipple 2; The other end of sealing wire post 9 is arranged in the inner chamber of three core seal nipples 3; On sealing wire post 9, also be with seal rubber sleeve 14,14 pairs of sealing wire posts 9 of seal rubber sleeve play the insulation protection effect.In three core seal nipples 3, also being provided with the three core socket assemblies 10 that are used for stube cable and the other end of double end contact pin 11, three core seal nipples 3 is connected with magnetic orientator assembly top connection 13 through second box cupling 12.The cable that inserts from cable head joint 1 is connected to the magnetic orientator assembly successively behind sealing wire post 9, three core socket assemblies 10 and double end contact pin 11.
Referring to Fig. 2; The magnetic orientator assembly of the utility model is existing parts; It comprises that magnetic orientator top connection 13, shell 16, probe assembly 17, magnetic orientator lower contact 18, differential thread box cupling 19, perforating gun connector 20, rifle head connecting rod core 21, rifle head connect union 22, union thread protector 23, connection-core insulation tube 24, lining 25, spring 26, copper packing 27, crash roll 28, felt pad 29, O-ring seals 30 and spring washer 31; Wherein, Magnetic orientator top connection 13 is connected with the three-core cable head harness, and the rifle head connects union 22 and connects perforating gun, and shell 16 is a cylindrical hollow configuration; Probe assembly 17 is located in the shell 16, and shell 16 tops are connected with magnetic orientator top connection 13.
The three core antidetonation head harness of the utility model can strengthen the bearing capacity of cable step by step through the connection-core of tri-layer is set, played good anti-interference, anti seismic efficiency, have ensured magnetic orientator continuing when work, stable, efficient.
Need to prove at last; Above embodiment is only in order to technical scheme but not the restriction technologies scheme of explanation the utility model; Although the applicant specifies the utility model with reference to preferred embodiment, those of ordinary skill in the art should be appreciated that those modifications that technical scheme of the utility model is carried out perhaps are equal to replacement; And do not break away from the aim and the scope of present technique scheme, all should be encompassed in the middle of the claim scope of the utility model.
Claims (3)
1. be used for three core antidetonation cable head harness of magnetic orientator, it is characterized in that, comprise that inside is equipped with the cable head joint (1) of cavity, three cores hold line pipe nipple (2) and three core seal nipples (3); The front end of cable head joint (1) inserts cable, and the rear end of cable head joint (1) and three cores hold line pipe nipple (2) and are connected, and the cavity that three cores hold line pipe nipple (2) is communicated with the cavity of cable head joint (1); In cable head joint (1), be fixed with cable cap (5) through jackscrew (4); In cable cap (5), be provided with pre-small post-large conical through-hole (6); In this conical through-hole (6), be provided with first tapered sleeve (71) and second tapered sleeve (72) that are used for stube cable, said first tapered sleeve (71) be enclosed within second tapered sleeve (72) outer and with said conical through-hole (6) matched in clearance; The other end that said three cores hold line pipe nipple (2) is fixedly connected with three core seal nipples (3) through first box cupling (8); On three core seal nipples (3), be sealedly connected with sealing wire post (9); One end of said sealing wire post (9) is positioned at the inner chamber that three cores hold line pipe nipple (2), and the other end of sealing wire post (9) is arranged in the inner chamber of three core seal nipples (3); In three core seal nipples (3), also be provided with the three core socket assemblies (10) and the double end contact pin (11) that are used for stube cable, the other end of three core seal nipples (3) is connected with magnetic orientator assembly top connection (13) through second box cupling (12); The cable that inserts from cable head joint (1) is connected to the magnetic orientator assembly successively behind sealing wire post (9), three core socket assemblies (10) and double end contact pin (11).
2. the three core antidetonation cable head harness that are used for magnetic orientator according to claim 1 is characterized in that, on sealing wire post (9), also are with seal rubber sleeve (14).
3. the three core antidetonation cable head harness that are used for magnetic orientator according to claim 1 is characterized in that, said sealing wire post (9) is tightly connected through O-ring seals (15) and three core seal nipples (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202242420U CN202108503U (en) | 2011-06-29 | 2011-06-29 | Three-core shock-resistant bridle for cable of magnetic locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202242420U CN202108503U (en) | 2011-06-29 | 2011-06-29 | Three-core shock-resistant bridle for cable of magnetic locator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108503U true CN202108503U (en) | 2012-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202242420U Expired - Lifetime CN202108503U (en) | 2011-06-29 | 2011-06-29 | Three-core shock-resistant bridle for cable of magnetic locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108503U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447695A (en) * | 2022-02-21 | 2022-05-06 | 陕西海格瑞恩实业有限公司 | Perforation socket selecting and sending device and plug matched with same |
-
2011
- 2011-06-29 CN CN2011202242420U patent/CN202108503U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114447695A (en) * | 2022-02-21 | 2022-05-06 | 陕西海格瑞恩实业有限公司 | Perforation socket selecting and sending device and plug matched with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |