CN204920926U - Gas well well head suspension type narrow tube medicament filling system - Google Patents
Gas well well head suspension type narrow tube medicament filling system Download PDFInfo
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- CN204920926U CN204920926U CN201520581418.6U CN201520581418U CN204920926U CN 204920926 U CN204920926 U CN 204920926U CN 201520581418 U CN201520581418 U CN 201520581418U CN 204920926 U CN204920926 U CN 204920926U
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- gas well
- narrow tube
- suspension type
- hanger
- well
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Abstract
The utility model discloses a gas well well head suspension type narrow tube medicament filling system, including instrument cluster and hanger, the instrument cluster be located the gas well, the hanger is in the well head of gas well, and the narrow tube connects with the instrument polyphone and hangs through the hanger, the ground manifold of confession medicine including being used for to the gas well in still, the ground manifold including annotating the agent pipe, the one end of notes agent pipe be equipped with and be used for connecting the general joint of annotating the agent pump, the other end is equipped with cutting ferrule formula crossover sub, cutting ferrule formula crossover sub be connected with the narrow tube, it reduces main equipment occupancy to reduce a large amount of operating costs.
Description
Technical field
The utility model relates to gas well technology of gas recovery by foam drainage field, particularly relates to a kind of gas well mouth suspension type narrow tube medicament loading system.
Background technology
Technology of gas recovery by foam drainage in well, injects foam adjuvant by ground installation, reduce surface tension and the interfacial tension of hydrops in well, make it be the state of low surface tension and high surface viscosity, to utilize in well self generating gas or inject external air source (natural gas or liquid nitrogen) and produce foam.Foam is the dispersion of gas dispersion in liquid: gas is decentralized photo (discontinuous phase), and liquid is decentralized medium (continuous phase).Because the density difference of gas and liquid is very large, therefore bubble in a liquid always rises to liquid level very soon, and liquid is taken out of in the mode of foam, reaches the object of discharging hydrops in well.
At present, technology of gas recovery by foam drainage is the production gas technology grown up at the beginning of external 21 century, and its dosing method is more, has and adopts ground to carry out the mode such as liquid infusion, well head input solid.In the mode adopting liquid infusion, there is a kind of application specific equipment by continuous for the stainless steel of 1/4in or 3/8in narrow tube (because its diameter is thinner, also referred to as capillary tube) be lowered into shaft bottom from well head by main valve, directly inject various chemical agent to solve a new technique of the various problem in down-hole by capillary column to down-hole, the gas well liquid discharging gas producing little to hydrops amount, salinity is not high, bottom pressure is low has good effect.Operation in capillary tube lower going-into-well and coiled tubing similar, capillary tube tubing string enters in well by oil pipe, can below near payzone.Capillary tube tubing string end is made up of ball-and-seat, ported sub, and depth of setting can more than 20,000 ft, and chemical agent is by the gravity siphonage of capillary tube or be pumped in capillary tube tubing string with injectant pump.This technology solves conventional drainage measure frother and can not directly reach in the middle part of gas-bearing formation, and the problem that drainage effect is poor makes foaming water discharge effect be given full play to, improves drainage effect.Meanwhile, also new method is provided for the disconnected gas well of tubing and casing annular space (gas well of such as lower packet and damper) frother of annotating.
The range of application of this technology comprises: when injecting bubble medicine discharging agent, can help gas well discharge opeing, improve gas well gas production; If add anti-corrosion anti-scale agent, the salt block preventing continuous water filling from causing is piled up and wax control.This technology comprises for advantage when steeping mining gas: continue volume increase, stable yields, shorten the downtime, improve gas metering precision and dynamic performance (elimination inter-well interference), the oil reservoir injury that the factors such as fine migration, cyclic loading and relative permeability that reduce cause.
Existing narrow tube working rig is applicable to gas well and removes φ 9.525(3/8 ") following narrow tube, it is primarily of the formation such as power and control system, roller system (comprising coil pipe winch, rack pipe mechanism, guider and injection head), operating desk on injecting system (comprise injectant pump, import and export manifold), sledge.This equipment can ensure that when operation narrow tube puts and puts on normal, realizes small-diameter coiled tubing water drainage-gas recovery technology complete sets of Techniques.Its liquid loading system is positioned at (overall one-tenth sled) on narrow tube working rig, enters narrow tube, after narrow tube is lowered into position, then in well, inject row's foam compound under first utilizing capillary tube working rig in well.When adding injecting medical liquid by narrow tube in well, capillary tube working rig needs indwelling in operation field.This technique need take implement for a long time and cause narrow tube working rig utilization rate of equipment and installations to decline, and process implementing costly.
China Patent No. is separately had to be: 201220608864.8, the day for announcing is 2013.4.24, disclose a kind of gas well mouth automatic medicine adding apparatus, for reducing gas well injecting cost, reduce labor intensity and decreasing pollution and designing, namely titration tank connects collector tube beam entrance through electrical ball valve A; Liquid collecting tube bank drain connects blow-down pipe through electrical ball valve C; Liquid collecting tube bank 8 outlet connects electrical ball valve B2, and electrical ball valve B connects surface line and sleeve valve through threeway; Sleeve valve connects casing pressure pressure and becomes and sleeve pipe pipeline; Vapor return line is communicated with liquid collecting tube bank entrance and electrical ball valve B.Said apparatus same long time take implement, cause implement to utilize low.
Utility model content
In order to overcome the defect of above-mentioned prior art, the utility model provides a kind of gas well mouth suspension type narrow tube medicament loading system, thus reach periodic maintenance is carried out to the good gas well of filling process efficiency, reduce main equipment occupancy, thus reduce a large amount of operating cost.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
Gas well mouth suspension type narrow tube medicament loading system, comprise tool string and hanger, described tool string is positioned at gas well, described hanger is in the well head of gas well, narrow tube is connected with tool string and is hung by hanger, it is characterized in that: also comprise for the manifold of ground for medicine in gas well, described manifold of ground comprises injecting pipe, one end of described injecting pipe is provided with the universal joint for connecting injectant pump, the other end is provided with bite type crossover sub, and described bite type crossover sub is connected with narrow tube.
Described tool string comprises the connector, one way valve, injecting pipe nipple, weighted lever, the guide head that connect narrow tube and filling tool from top to bottom.As each instrument button-type not for the moment, need to configure corresponding crossover sub.
Described injecting pipe is provided with control valve.
Injecting pipe between described universal joint and control valve is provided with safety valve and automatic ignition blow-out release device.
Injecting pipe between described bite type crossover sub and control valve is provided with pressure meter.
Described tool string comprises the connector, ball-and-seat, injecting head, weighted lever and the guide head that connect successively from top to bottom.
Described hanger is arranged on production tree.
The utility model has the following advantages:
1, the utility model arranges manifold of ground by the ground at well head, described manifold of ground comprises injecting pipe, one end of described injecting pipe is provided with the universal joint for connecting injectant pump, and the other end is provided with bite type crossover sub, and described bite type crossover sub is connected with narrow tube.After narrow tube installs on gas well with suspension, then aboveground narrow tube is cut off, by fastening means string and the bite type crossover sub of the narrow tube and manifold of ground that hang on well head be connected, by manifold of ground system, medicament is added to gas well and implement foam drainage gas recovery technique, narrow tube working rig originally is then transferred to other place, both the pressure of gas well mouth periphery working space had been alleviated, main equipment is effectively utilized simultaneously, therefore reduce main equipment occupancy, thus reduce a large amount of operating cost.
2, injecting pipe of the present utility model is provided with control valve, safety valve and automatic ignition blow-out release device and pressure meter, in gas well liquid loading, and the filling of medicament in world control gas well, and the safety dumping controlling natural gas in gas well.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Mark in figure: 1, gas well, 2, tool string, 3, hanger, 4, narrow tube, 5, injecting pipe, 6, universal joint, 7, pressure meter, 8, safety valve and automatic ignition blow-out release device, 9, bite type crossover sub, 10, control valve, 11, support, 12, narrow tube.(accompanying drawing does not see 12).
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
Embodiment 1
As shown in Figure 1, a kind of gas well mouth suspension type narrow tube medicament loading system, this system is based in prior art, narrow tube working rig in gas well under enter narrow tube and be fixed on the hanger of well head, in medicament filling process in gas well or note terminate after, especially for profitable gas well, this main equipment all can not withdraw gas well mouth, causes utilization rate of equipment and installations low.
Gas well mouth suspension type narrow tube medicament loading system, comprise tool string 2 and hanger 3, described tool string 2 is positioned at gas well 1, and described tool string 2 comprises the connector, ball-and-seat, injecting head, weighted lever and the guide head that connect successively from top to bottom.
Described hanger 3 is positioned at the well head of gas well 1, is generally arranged on production tree, and narrow tube 4 and tool string 2, narrow tube 4 through the straight pipe of production tree, and is hung by hanger 3.
The utility model arranges manifold of ground on the ground of gas well mouth, described manifold of ground comprises injecting pipe 5, one end of described injecting pipe 5 is provided with the universal joint 6 for connecting injectant pump, the other end is provided with bite type crossover sub 9, and described bite type crossover sub 9 is connected with narrow tube 4.Described injecting pipe 5 is provided with control valve 10.Injecting pipe 5 between described universal joint 6 and control valve 10 is provided with safety valve and automatic ignition blow-out release device 8; Injecting pipe between described bite type crossover sub 9 and control valve 10 is provided with pressure meter 7.
Operating principle of the present utility model: first narrow tube is put into gas well by main equipment, hanger is installed simultaneously, after narrow tube installs on gas well with suspension, then aboveground narrow tube is cut off, the narrow tube of connectivitv tool string is connected with the bite type crossover sub of manifold of ground, by manifold of ground system, medicament is added to gas well and carry out foam drainage gas recovery, main equipment originally is then transferred to other place, both the pressure sending out gas well mouth working space had been alleviated, main equipment is effectively utilized simultaneously, therefore main equipment occupancy is reduced, thus reduce a large amount of operating cost.
Claims (6)
1. gas well mouth suspension type narrow tube medicament loading system, comprise tool string (2) and hanger (3), described tool string (2) is positioned at gas well (1), described hanger (3) is positioned at the well head of gas well (1), narrow tube (4) is connected with tool string (2) and passes through hanger (3) and hangs, it is characterized in that: also comprise for the manifold of ground for medicine in gas well (1), described manifold of ground comprises injecting pipe (5), one end of described injecting pipe (5) is provided with the universal joint (6) for connecting injectant pump, the other end is provided with bite type crossover sub (9), described bite type crossover sub (9) is connected with narrow tube (4).
2. gas well mouth suspension type narrow tube medicament loading system according to claim 1, is characterized in that: described injecting pipe (5) is provided with control valve (10).
3. gas well mouth suspension type narrow tube medicament loading system according to claim 2, is characterized in that: the injecting pipe (5) between described universal joint (6) and control valve (10) is provided with safety valve and automatic ignition blow-out release device (8).
4. gas well mouth suspension type narrow tube medicament loading system according to claim 2, is characterized in that: the injecting pipe (5) between described bite type crossover sub (9) and control valve (10) is provided with pressure meter (7).
5. gas well mouth suspension type narrow tube medicament loading system according to claim 1, is characterized in that: described described tool string (2) comprises the connector, one way valve, injecting pipe nipple, weighted lever and the guide head that connect narrow tube and filling tool from top to bottom.
6. gas well mouth suspension type narrow tube medicament loading system according to claim 1, is characterized in that: described hanger (3) is arranged on production tree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581418.6U CN204920926U (en) | 2015-08-05 | 2015-08-05 | Gas well well head suspension type narrow tube medicament filling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520581418.6U CN204920926U (en) | 2015-08-05 | 2015-08-05 | Gas well well head suspension type narrow tube medicament filling system |
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| Publication Number | Publication Date |
|---|---|
| CN204920926U true CN204920926U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520581418.6U Active CN204920926U (en) | 2015-08-05 | 2015-08-05 | Gas well well head suspension type narrow tube medicament filling system |
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| CN (1) | CN204920926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058815A (en) * | 2019-12-12 | 2020-04-24 | 西南石油大学 | Well control device for injecting medicament into underground capillary of offshore gas well |
-
2015
- 2015-08-05 CN CN201520581418.6U patent/CN204920926U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058815A (en) * | 2019-12-12 | 2020-04-24 | 西南石油大学 | Well control device for injecting medicament into underground capillary of offshore gas well |
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| GR01 | Patent grant |