CN201656409U - Cable anti-theft sealing device used for submersible motor well-head - Google Patents
Cable anti-theft sealing device used for submersible motor well-head Download PDFInfo
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- CN201656409U CN201656409U CN2010201579413U CN201020157941U CN201656409U CN 201656409 U CN201656409 U CN 201656409U CN 2010201579413 U CN2010201579413 U CN 2010201579413U CN 201020157941 U CN201020157941 U CN 201020157941U CN 201656409 U CN201656409 U CN 201656409U
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- cable
- theft
- seal
- sealing
- well head
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Abstract
The utility model relates to a cable anti-theft sealing device used for a submersible motor well-head in an oil field. The cable anti-theft sealing device comprises a hanging and sealing part, a cable sealing part and an anti-theft part. The hanging and sealing part is a whole with strong hanging capability, and can avoid damage to a cable by extrusion; and the well-head has good sealing performance. The inner cavity of a sealing main body of the cable is a taper, a cable sealing piece is a taper split type, and the cable sealing utilizes thread adjustment which is easy to control and utilizes vertical and horizontal bidirectional extrusion expanding and sealing, so that the sealing piece is easy to take and place, and the cable has good sealing performance and high pressure resistance. Not only the cable but also a pressure plate on the well-head can be prevented form being stolen. The cable anti-theft sealing device has the advantages of simple construction, convenient operation and safe and reliable use; and even if a construction quality problem occurs or the cable at the well-head is lost (only the cable above a cable anti-theft tube can be lost), the maintenance can be performed without power equipment.
Description
Relate to the field:
The utility model is a kind of device that hangs down-hole string, sealing well head and well head cable that is used for the oilfield submersible pump well.
Background technology:
At present, because the particularity of submersible electric pump well head and the scrambling of cable, the well head Seal of Cables is poor, withstand voltage low, well head and well head cable seal place thorn often occurs and leak, not only influence normal construction or oil well ordinary production, also caused environmental pollution and gas blowout accident hidden danger; The various hanger unreasonable structure of use, construction bother, easily cause the well head cable to squeeze and injure the impact that is subjected to high-tension current in the production after the crowded wound of well head cable, caused well head cable or downhole cable and unit to burn; Because well head cable and platen do not have anti-theft measure, under the lowered in field environment, stolen problems such as well head cable and platen often appear simultaneously.After well head and the thorn leakage of well head cable seal place, the crowded wound of cable, cable burning and well head cable are stolen, have only last power-equipment to carry out maintenance construction, increased the maintenance activity workload, influenced the oil well ordinary production.
Technology contents:
The purpose of this utility model is to provide a kind of suspension ability strong, well head and good, the withstand voltage height of well head cable seal (withstand voltage can be complementary) with present on-the-spot widely used ky65/25 type wellhead for production in each oil field, the well head cable can not squeeze wound, well head cable, platen can be antitheft, and it is simple to have construction, easy to operate, safe and reliable, lose problem (also is more than the cable theft-prevention pipe even the well head cable is lost), the well head cable theft-prevention sealing device that does not also need power-equipment to keep in repair even construction quality problem or well head cable occur.
The utility model is achieved in that
Comprise cable theft-prevention pipe 1, cable seal pressure cap 2, drag reduction bearing 3, seal joint 4, tapered split seal 5, cable theft-prevention seal casinghousing 6, anti-theft screw 7, antitheft platen 8, hanger body 9, hanger sealed packing 10, hanger sealing ring 11.Two axially extending bores are arranged on the hanger body 9, one is the sealed tube screw thread up and down and is used to connect down-hole string and production tree, one is that top is the sealed tube screw thread, the bottom is the cable passage in flat hole, hanger sealed packing 10 is installed in the main body outside, hanger sealed packing 10 be up and down hanger metal o-ring 11; Cable seal pressure cap 2 inner chambers have drag reduction bearing 3, top is threaded with cable theft-prevention pipe 1, the bottom is connected with the flat thread on anti-theft sealing housing 6 tops, interior tapered split seal 5 and the seal joint 4 installed, by threaded adjusting compression taper split seal, realize the well head cable seal, the bottom is that the sealed tube screw thread is threaded with the sealed tube on hanger body 9 cable passage tops.The middle and upper part in hanger body 9 outsides is a boss structure, antitheft platen 8 is a plate-like, interior circular hole is the lower counterbore structure, maximum inner diameter is greater than the maximum gauge of hanger body 9, minimum diameter is greater than hanger body 9 upper diameter, less than hanger body 9 maximum outside diameters, and is inverted by pipe nipple on clip head and the hanger and is installed in hanger body 9 middle and upper parts, cooperate with hanger body 9 middle and upper part boss structures, antitheft platen 8 is connected with the well head big four with the well head king bolt.
The utility model has also adopted following technical scheme:
There is the sinking screw side of cable seal pressure cap 2, and the anti-theft screw 7 of sinking screw cooperates with groove on the anti-theft sealing housing 6.
The pentagonal screw of anti-theft screw 7 cooperates with Anti-theft wrench.
There are two or more circular holes the side of cable seal pressure cap 2, seal joint 4.
Advantage of the present utility model is:
1, hanger body is as a whole, and suspension force is strong, be difficult for squeezing hindering cable, and the well head good airproof performance.
2, well head Seal of Cables main body inner chamber is taper, and cable seal is that taper is split type, and cable seal has used threaded adjusting easy to control, the swollen sealing of rising of longitudinal and transverse two-way extruding, thus seal takes, puts simply, good, the withstand voltage height of cable seal.
3, seal pressure cap has used damping device, and is laborsaving during pressurization, and cable and seal joint 4 can not rotate with the rotation pressurization of seal pressure cap in the pressurization process, cause cable and insulating barrier to damage.
4, anti-theft sealing housing 6 and antitheft platen 8 have been installed on the hanger body, antitheft platen 8 self has anti-theft feature can not caused separately and lose.Under the protection of anti-theft sealing housing 6, cable theft-prevention pipe 1, anti-theft screw 7, also be more than antitheft pipe even cable is lost, do not go up power-equipment like this and just can connect the well head cable.
Description of drawings
Accompanying drawing is a structural representation of the present utility model
Concrete enforcement:
The utility model will be further described below in conjunction with accompanying drawing:
As shown in the figure, this submersible electric pump well head cable theft-prevention sealing device is by hanging hermetic unit, cable seal part, guarding portion, and three parts are formed.
Hanging hermetic unit is made up of hanger body 9, hanger sealed packing 10, hanger metal o-ring 11.Work to hang down-hole string, connect production tree and sealing well head.
The cable seal part is made up of cable seal pressure cap 2, drag reduction bearing 3, seal joint 4, tapered split seal 5, cable theft-prevention seal casinghousing 6.Play sealing well head cable.
Guarding portion is made up of cable theft-prevention pipe 1, anti-theft screw 7, Anti-theft wrench and antitheft platen 8.Even having reached that cable loses also is on cable theft-prevention pipe 1, does not use power-equipment like this and just can connect the well head cable, soon the quick-recovery oil well production.
Well head cable theft-prevention sealing device method is installed: following intact fulgurite, earlier hanger is connected with the cable tubing string, the side opening of cable along hanger body passed, the good hanger body of seat, be inserted in antitheft platen 8 pipe nipple and cable end from the hanger body, make antitheft platen 8 screws consistent with well head big four screw, install antitheft platen 8, cable theft-prevention seal casinghousing 6, penetrate from cable end, pull down part cable armour skin at the cable seal position according to cable theft-prevention seal casinghousing 6 length, and cable theft-prevention seal casinghousing 6 is tightened on hanger axle side screw; Cable is gathered around several centimetres downwards, simultaneously taper split seal 5 is filled in the anti-theft sealing housing 6, again seal joint 4, cable seal pressure cap 2, cable theft-prevention pipe 1, penetrate from cable end, put seal joint 4 well, tighten cable seal pressure cap 2, and make the sinking screw of cable seal pressure cap 2 sides corresponding, tighten anti-theft screw 7 with Anti-theft wrench and get final product with groove on the cable theft-prevention seal casinghousing 6.
Pull out well head cable theft-prevention sealing device method: remove well head earlier, unload anti-theft screw 7 and cable seal pressure cap 2 with Anti-theft wrench, take off seal joint 4, last portable cable takes out tapered split seal 5; Unload anti-theft sealing housing 6, remove platen 8, get final product and carry hanger body.
Connect the well head cable methods: unload the cable theft-prevention pipe, get final product by opposite operation in tandem behind the stube cable.
Claims (5)
1. submersible electric pump well head cable theft-prevention sealing device comprises cable theft-prevention pipe (1), cable seal pressure cap (2), drag reduction bearing (3), seal joint (4), tapered split seal (5), cable theft-prevention seal casinghousing (6), anti-theft screw (7), antitheft platen (8), hanger body (9), hanger sealed packing (10), hanger metal o-ring (11).It is characterized in that: two axially extending bores are arranged on the hanger body (9), and one is the sealed tube screw thread up and down and is used to connect down-hole string and production tree, and a top is the sealed tube screw thread, and the bottom is the cable passage in flat hole; Cable seal pressure cap (2) inner chamber has drag reduction bearing (3), top is threaded with cable theft-prevention pipe (1), the bottom is connected with the flat thread on cable theft-prevention seal casinghousing (6) top, interior tapered split seal (5) and the seal joint (4) installed, by threaded adjusting compression taper split seal, reach the purpose of sealing well head cable; The bottom is that the sealed tube screw thread is threaded with the sealed tube on hanger body (9) cable passage top; The interior circular hole of antitheft platen (8) is the lower counterbore structure, maximum inner diameter is greater than hanger body (9) maximum gauge, minimum diameter greater than hanger body (9) upper diameter less than maximum outside diameter, the boss correspondence of same hanger body (9) middle and upper part, it is basic identical that last plane of antitheft platen (8) and hanger body (9) are gone up the plane, and connect with the well head big four by the well head king bolt.
2. submersible electric pump well head cable theft-prevention sealing device according to claim 1 is characterized in that: the screw thread of anti-theft screw (7) cooperates with the sinking screw of cable seal pressure cap (2) side, and corresponding with the groove of anti-theft sealing housing (6) upper side.
3. submersible electric pump well head cable theft-prevention sealing device according to claim 1, it is characterized in that: tapered split seal (5) is three lobes, and every lobe has two semi-circular axial notches, and profile taper is identical with anti-theft sealing housing (6) inner chamber.
4. submersible electric pump well head cable theft-prevention sealing device according to claim 1 is characterized in that: outer five jiaos of with Anti-theft wrench interior five jiaos of anti-theft screw (7) cooperate.
5. submersible electric pump well head cable theft-prevention sealing device according to claim 1 is characterized in that: the side of cable drag reduction seal pressure cap (2) and seal joint (4) has two or more circular holes respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201579413U CN201656409U (en) | 2010-03-17 | 2010-03-17 | Cable anti-theft sealing device used for submersible motor well-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201579413U CN201656409U (en) | 2010-03-17 | 2010-03-17 | Cable anti-theft sealing device used for submersible motor well-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656409U true CN201656409U (en) | 2010-11-24 |
Family
ID=43121647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201579413U Expired - Fee Related CN201656409U (en) | 2010-03-17 | 2010-03-17 | Cable anti-theft sealing device used for submersible motor well-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656409U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081555A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Viscosity reducing device for thick oil rodless submersible pump well |
-
2010
- 2010-03-17 CN CN2010201579413U patent/CN201656409U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081555A (en) * | 2020-09-22 | 2020-12-15 | 山东天汇石油技术有限公司 | Viscosity reducing device for thick oil rodless submersible pump well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20140317 |