CN204691760U - A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining - Google Patents
A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining Download PDFInfo
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- CN204691760U CN204691760U CN201520258929.4U CN201520258929U CN204691760U CN 204691760 U CN204691760 U CN 204691760U CN 201520258929 U CN201520258929 U CN 201520258929U CN 204691760 U CN204691760 U CN 204691760U
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- wire rope
- coal bed
- bed gas
- open hole
- screw pump
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Abstract
The utility model belongs to the technical field of coal bed gas open hole well mining equipment, is specifically related to a kind of coal bed gas open hole well sand face sniffer based on using screw pump mining.In order to solve in screw pump mining process, the utility model easily occurs that tubing anchor is stuck in the problem that cannot trip out in casing shoe, and then provide a kind of coal bed gas open hole well sand face sniffer based on using screw pump mining, comprise cylinder, wire rope, length counter, metal probe and wire rope bracket, described cylinder is installed on bearing support by bearing axle, one end of wire rope connects cylinder, the other end of wire rope is wire-wrapped in successively after on the meter wheel of length counter and the pulley of wire rope bracket and is connected with metal probe, metal probe is vertical state along its axis.Utilize the utility model device can effectively avoid tubing anchor to be stuck in phenomenon in casing shoe, and this device can be monitored by length counter and pulling force sensor and judges position, sand face in real time, its degree of accuracy is high.
Description
Technical field
The utility model belongs to the technical field of coal bed gas open hole well mining equipment, is specifically related to a kind of coal bed gas open hole well sand face sniffer based on using screw pump mining.
Background technology
Coal bed gas barefoot completion be a kind of by sleeve pipe only more than roof, in Duan Zao cave, coal seam, and reserve the completion mode of about 30 meters sand setting pockets in bottom, coal seam.Coal bed gas open hole well is when using oil pumper and tubing pump to combine mining, before each workover treatment, only need continue oil filling pipe at well head, judge whether oil pipe touches sand face by observing the manometric change of well maintenance vehicle, just can know the particular location in sand face by calculating the length adding oil pipe.
When using screw pump mining, pump barrel because of screw pump needs pump barrel and sleeve pipe grappling by tubing anchor, therefore when workover treatment, use original spy sand face mode that tubing anchor can be caused to exceed open hole well casing shoe, in construction, having tubing anchor to be stuck in, danger that casing shoe cannot trip out exists, can only by tripping out full well casing string, lay down tubing anchor, the mode entering down oil pipe again detects position, sand face, not only expends time in, and wasting manpower and material resources.
Summary of the invention
In order to solve in screw pump mining process, the utility model easily occurs that tubing anchor is stuck in the problem that cannot trip out in casing shoe, and then provide a kind of coal bed gas open hole well sand face sniffer based on using screw pump mining.
The utility model adopts following technical scheme:
A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining, comprise cylinder, wire rope, length counter, metal probe and wire rope bracket, described cylinder is installed on bearing support by bearing axle, one end of wire rope connects cylinder, the other end of wire rope is wire-wrapped in successively after on the meter wheel of length counter and the pulley of wire rope bracket and is connected with metal probe, and metal probe is vertical state along its axis.
Described metal probe is solid rod iron, and its upper and lower two ends are taper.
The wire rope at described pulley place is connected with pulling force sensor.
The two ends of described bearing axle connect buncher and check mechanism respectively.
The utility model has following beneficial effect:
1, tubing anchor effectively can be avoided after being detected open hole well sand face by the utility model device to be stuck in phenomenon in casing shoe, to ensure that on-the-spot efficiency of construction, reduce labour intensity;
2 and this device can be monitored in real time by length counter and pulling force sensor and judge position, sand face, its degree of accuracy is high;
3, this apparatus structure is simple, and simple operation, can judge position, sand face rapidly, save construction cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-bearing support, 2-cylinder, 3-wire rope, 4-bearing axle, 5-length counter, 6-pulling force sensor, 7-wire rope bracket, 8-metal probe, 9-coal bed gas well head.
Detailed description of the invention
By reference to the accompanying drawings, detailed description of the invention of the present utility model is described further:
The coal bed gas open hole well sand face sniffer based on use screw pump mining as shown in Figure 1, comprise cylinder 2, wire rope 3, length counter 5, metal probe 8 and wire rope bracket 7, described cylinder 2 is installed on bearing support 1 by bearing axle 4, one end of wire rope 3 connects cylinder 2, the other end of wire rope 3 is wire-wrapped in successively after on the meter wheel of length counter 5 and the pulley of wire rope bracket 7 and is connected with metal probe 8, and metal probe 8 is vertical state along its axis.
Described metal probe 8 adopts the solid rod iron of diameter 50mm, and length is 1 meter, and its upper and lower two ends are all processed as taper, snap in casing shoe at Open-Hole Section to prevent probe.
The output length of wire rope 3 is measured by length counter 5, and ensure that data are accurate, pulling force sensor 6 is for judging whether metal probe is visited to sand face.Length counter can adopt and count identical Martin Decker depth-measuring system with oil reservoir logging, its operating principle is: this system be installed on the wire rope between capstan winch and well head, along with the movement of wire rope, meter wheel on this length counter rotates thereupon, and driving grating disc to rotate by degree of depth transmission mechanism, illuminator makes optical pulse generator produce photoimpact through special grating disc.The number of pulses exported in unit interval just reflects lowering velocity; From degree of depth Fixed Initial Point, how many accumulative pulses just have recorded is transferred the degree of depth.
Device described in the utility model is driven at the bottom of the metal probe lower going-into-well of connecting steel wire ropes by buncher to carry out the face operation of spy sand.During construction, probe is put into coal bed gas well sleeve pipe by coal bed gas well head, control operating speed by buncher and realize folding and unfolding to probe, and at the reading of ground Real Time Observation sensor for countering and pressure sensor, thus judge position, sand face, as shown in Figure 1.
Claims (4)
1. the coal bed gas open hole well sand face sniffer based on use screw pump mining, it is characterized in that: comprise cylinder (2), wire rope (3), length counter (5), metal probe (8) and wire rope bracket (7), described cylinder (2) is installed on bearing support (1) by bearing axle (4), one end of wire rope (3) connects cylinder (2), the other end of wire rope (3) is wire-wrapped in successively after on the meter wheel of length counter (5) and the pulley of wire rope bracket (7) and is connected with metal probe (8), metal probe (8) is vertical state along its axis.
2. the coal bed gas open hole well sand face sniffer based on using screw pump mining according to claim 1, is characterized in that: described metal probe (8) is solid rod iron, and its upper and lower two ends are taper.
3. the coal bed gas open hole well sand face sniffer based on using screw pump mining according to claim 1, is characterized in that: the wire rope (3) at described pulley place is connected with pulling force sensor (6).
4. the coal bed gas open hole well sand face sniffer based on using screw pump mining according to claim 1, is characterized in that: the two ends of described bearing axle (4) connect buncher and check mechanism respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258929.4U CN204691760U (en) | 2015-04-27 | 2015-04-27 | A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520258929.4U CN204691760U (en) | 2015-04-27 | 2015-04-27 | A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691760U true CN204691760U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520258929.4U Active CN204691760U (en) | 2015-04-27 | 2015-04-27 | A kind of coal bed gas open hole well sand face sniffer based on using screw pump mining |
Country Status (1)
| Country | Link |
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| CN (1) | CN204691760U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075431A (en) * | 2020-01-09 | 2020-04-28 | 西安电子科技大学 | Test oil and gas parameter recorder, and operation state mode identification method and system |
-
2015
- 2015-04-27 CN CN201520258929.4U patent/CN204691760U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075431A (en) * | 2020-01-09 | 2020-04-28 | 西安电子科技大学 | Test oil and gas parameter recorder, and operation state mode identification method and system |
| CN111075431B (en) * | 2020-01-09 | 2024-04-19 | 西安电子科技大学 | Oil gas testing parameter recorder, operation state mode identification method and system |
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