CN105221127A - Curl steel bar seam sand screen heater - Google Patents
Curl steel bar seam sand screen heater Download PDFInfo
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- CN105221127A CN105221127A CN201510626539.2A CN201510626539A CN105221127A CN 105221127 A CN105221127 A CN 105221127A CN 201510626539 A CN201510626539 A CN 201510626539A CN 105221127 A CN105221127 A CN 105221127A
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- ring
- steel plate
- steel bar
- steel
- resistive conductor
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Abstract
Curling steel bar seam sand screen heater is belong to device in technical field of oil field equipment, it is characterized in that: the centre of the central tube of this device and the tube wall of vicinity thereof are provided with several through holes, central tube two ends are provided with external screw thread, ring washer is annular steel ring, the anchor ring side direction of an annular steel ring is wherein had to be provided with two symmetrical through holes, steel bar is triangular-section, and steel plate strip is elongate steel plate bar, is provided with several Jiong shape open slots in the side of steel plate strip; Resistive conductor is the resistive conductor that energising produces heat; With the even cloth of multiple steel plate strip in the periphery of central tube, curl with steel bar in steel plate strip according to certain gap, curl in the space in steel bar splayed gap with resistive conductor, resistive conductor stretches to outside through back-up ring side through hole, and back-up ring leans against the two ends consolidation curling steel bar and; This device is that liquid state is pumped to heavy oil heating in heavy oil wells, improves oil pumping yield, has gap and do not block, anti-high-strength interior pressure effect.
Description
Technical field: curling steel bar seam sand screen heater is belong to the device in oil-pumping equipment in oil field technical field.
Background technology: known, current oil field is in oil recovery process, and having a kind of be the oil of heavy oil wells is viscous crude, and viscous crude has to pass through heating rotary liquefy oil, enters into sand screen and oil well pump with fluid oil, could realize pumping.Realizing that deep-well 3000 meters of viscous crude heat is a difficult problem.
Summary of the invention: for solving the difficult problem in background technology, this device object is to provide one and curls steel bar seam sand screen heater, even tube wall on the central tube of this device be dispersed with several through holes, the steel plate strip of several strips at the peripheral longitudinal cloth of central tube, the open slot of Jiong shape is provided with in the downside of steel plate strip, steel bar is triangular-section, curl in the longitudinal steel plate strip outside central tube with leg-of-mutton steel bar, the gap curling steel bar is splay, curls resistive conductor in splay space; The two ends curling steel bar are provided with consolidation and back-up ring, the annular solid Side symmetrical of one of them back-up ring be provided with through hole, resistive conductor stretches to outside space by two through holes of back-up ring, when switching on power with resistive conductor, this device is located in the heavy oil tested layer of heavy oil wells, the heat of resistive conductor calorifies in viscous crude, viscous crude thermalization is made to become liquid, so fluid body is pumped on ground, this device thermalization viscous crude is liquid, and its gap not easily blocks, anti-high-strength interior pressure, pump 3000 meters of dark heavy oil wells, be not damaged.
The technical scheme that this device adopts: curl steel bar seam sand screen heater, formed with central tube, back-up ring, steel bar, steel plate strip and resistive conductor, it is characterized in that: on the centre of central tube and the tube wall of vicinity thereof, through hole by even cloth, is provided with screw thread outside the two ends of central tube; Back-up ring is annular steel ring, the anchor ring side direction symmetry of one of them back-up ring be provided with through hole; Steel bar is triangular-section; Steel plate strip is elongate steel plate bar, is provided with several Jiong shape open slots in steel plate strip side; Resistive conductor is the resistive conductor that energising produces heat; The assembling of this device: the even cloth in side being provided with several Jiong shape open slots with multiple steel plate strip side is fastened on the periphery of central tube; Curl with steel bar on the external surface of steel plate strip according to certain gap, curl in the space in steel bar splayed gap with resistive conductor, be each passed through the anchor ring side opening of a back-up ring with the two poles of the earth the end of a thread of resistive conductor, stretch to space outerpace; Resistive conductor can pass arbitrarily in the space of steel plate strip; Wear from the inward at both ends of central tube respectively with back-up ring and lean against the two ends consolidation curling steel bar and.
: the gap of this device does not block that anti-high-strength interior pressure, to heavy oil heating in heavy oil wells, makes viscous crude liquefy oil pump, and improves oil pumping yield owing to adopting the advantage of technique scheme.
Accompanying drawing illustrates:
Fig. 1 is that the master curling steel bar seam sand screen heater looks and broken section schematic diagram of structure.
Fig. 2 is that profile construction schematic diagram is looked on an A-A left side of Fig. 1.
Fig. 3 is the B-B top view cross section schematic diagram of structure of Fig. 1.
Detailed description of the invention: consult Fig. 1, Fig. 2 and Fig. 3 below and be described in detail, in Fig. 1, Fig. 2 and Fig. 3, curl steel bar seam sand screen heater, formed with central tube 1, back-up ring 2, steel bar 3, steel plate strip 4 and resistive conductor 5, it is characterized in that: on the centre of central tube (1) and the tube wall of vicinity, even cloth through hole, the two ends peripheral hardware screw thread of central tube (1); Back-up ring (2) is annular steel ring; The anchor ring side direction symmetry of one of them back-up ring (2) be provided with through hole; Steel bar (3) is triangular-section; Steel plate strip (4) is elongate steel plate bar, is provided with several Jiong shape open slots in steel plate strip (4) side; Resistive conductor (5) is the resistive conductor (5) that energising produces heat; The assembling of this device: the even cloth in side being provided with several Jiong shape open slots with the side of multiple steel plate strip (4) is fastened on the periphery of central tube (1); Curl with steel bar (3) on the external surface of steel plate strip (4) according to certain gap, curl in the space in steel bar (3) splayed gap with resistive conductor (5), be each passed through the anchor ring side opening of a back-up ring (2) with the two poles of the earth the end of a thread of resistive conductor (5), stretch to space outerpace: resistive conductor (5) can pass arbitrarily in the space of steel plate strip (4); Wear from the inward at both ends of central tube (1) respectively with back-up ring (2) and lean against the two ends consolidation curling steel bar (3) and.
Claims (1)
1. curl steel bar seam sand screen heater, formed with central tube 1, back-up ring 2, steel bar 3, steel plate strip 4 and resistive conductor 5, it is characterized in that: on the centre of central tube (1) and the tube wall of vicinity, even cloth through hole, the two ends peripheral hardware screw thread of central tube (1); Back-up ring (2) is annular steel ring; The anchor ring side direction symmetry of one of them back-up ring (2) be provided with through hole; Steel bar (3) is triangular-section; Steel plate strip (4) is elongate steel plate bar, is provided with several Jiong shape open slots in steel plate strip (4) side; Resistive conductor (5) is the resistive conductor (5) that energising produces heat; The assembling of this device: the even cloth in side being provided with several Jiong shape open slots with the side of multiple steel plate strip (4) is fastened on the periphery of central tube (1); Curl with steel bar (3) on the external surface of steel plate strip (4) according to certain gap, curl in the space in steel bar (3) splayed gap with resistive conductor (5), be each passed through the anchor ring side opening of a back-up ring (2) with the two poles of the earth the end of a thread of resistive conductor (5), stretch to space outerpace; Resistive conductor (5) can pass arbitrarily in the space of steel plate strip (4); Wear from the inward at both ends of central tube (1) respectively with back-up ring (2) and lean against the two ends consolidation curling steel bar (3) and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626539.2A CN105221127A (en) | 2015-09-21 | 2015-09-21 | Curl steel bar seam sand screen heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510626539.2A CN105221127A (en) | 2015-09-21 | 2015-09-21 | Curl steel bar seam sand screen heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221127A true CN105221127A (en) | 2016-01-06 |
Family
ID=54990351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510626539.2A Pending CN105221127A (en) | 2015-09-21 | 2015-09-21 | Curl steel bar seam sand screen heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221127A (en) |
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2015
- 2015-09-21 CN CN201510626539.2A patent/CN105221127A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |