CN205117848U

CN205117848U - Cable formula static pressure seat seals instrument

Info

Publication number: CN205117848U
Application number: CN201520924705.2U
Authority: CN
Inventors: 生凯章; 单永斌
Original assignee: American High-Tech Beijing Inc
Current assignee: American High-Tech Beijing Inc
Priority date: 2015-11-19
Filing date: 2015-11-19
Publication date: 2016-03-30
Anticipated expiration: 2025-11-19
Also published as: WO2017084225A1

Abstract

The utility model relates to a cable formula static pressure seat seals instrument, pressing including the ring and introducing module, oil sources oil return module and executable module, still include the pressure boost module, the pressure boost module constitutes by supplying the oil pipe way, returning oil pipe way, pilot operated directional control valve, low pressure piston, high -pressure piston and check valve subassembly, and pilot operated directional control valve, low pressure piston, high -pressure piston and check valve subassembly set gradually in the casing that the pressure boost module corresponds, supply the oil pipe way and go back to the oil pipe way to set up respectively in the casing that corresponds, by the present technical scheme, adopt the modularized design, utilize the pressure boost module technology to realize automatic pressure boost function, the area that utilizes low pressure piston and the small -bore high -pressure piston of heavy -calibre than realize with the biggest superchargers effect of primary pressure, in order to realize static pressure energetically, moreover, the steam generator is simple in structure, safety and reliability, producing cost is low, it is big to possess thrust, high safety, and the performance is stable, high reliability, the good characteristics of economic nature, through adopting the modularized design, have higher interchangeability and easy maintenance's characteristics.

Description

The setting instrument of cable type static pressure

Technical field

The utility model relates to setting tool under a kind of oil well, particularly relates to the setting instrument of a kind of cable type static pressure.

Background technique

Down-hole setting tool product specification is mainly derived from petroleum collection and yield-increasing technique, is recovering the oil, in the manufacturing process such as pressure break, acidifying to laminated distributor under well, combine with corresponding packet or bridging plug, complete and set operation, its huge market demand, has broad application prospects.

Current, down-hole setting tool mainly adopts fire-working artical type, the mode of electrical signal ignition charge is utilized to promote piston movement exactly, thus realize setting and giving up action, under high temperature and high pressure environment, more dangerous with electrical signal ignition charge, careless slightly just likely production development accident, or Oil/gas Well is scrapped, and gunpowder stores and transport exists larger potential safety hazard, explosive charge is adopted easily to damage packet or bridging plug, and greatly reduce recycling rate of waterused and the working life of packet or bridging plug, moreover, due to packet utilization is the absolute pressure that explosive charge produces, therefore along with the continuous intensification of setting depth, the explosive consumption of filling is needed then to require to get more and more, potential safety hazard is also increasing thereupon, and become the huge obstacle of safety in production.

Due to above-mentioned reason, people adopt cable mode to be sent to down-hole, what the thrust utilizing hydraulic way to produce in down-hole carried out down-hole sets work, because thrust is less, people adopt the combination of Multi-stage cylinder to make a concerted effort to carry out work mostly, right that, Multi-stage cylinder combines, oil hydraulic cylinder to be threaded connection or other modes are combined, piston rod is threaded connection or other modes such as hinged link together, the axial multistage combination of this structure, require higher to the coaxality of its workpiece, considerably increase difficulty of processing, improve processing cost, less economical, in use easy out stuck phenomenon, thus affect the working stability of whole system.

Model utility content

In view of this, main purpose of the present utility model is to provide a kind of cable type static pressure setting instrument, pass through the technical program, adopt modular design, supercharging building block technique is utilized to realize Automatic-boosting function, the area ratio of bigbore low pressure piston and small-bore high pressure piston is utilized to realize the pressurized effect maximum with initial pressure, and completed by Executive Module and set operation, to realize static pressure energetically, structure is simple, safe and reliable, fabricating cost is low, thus makes up the deficiencies in the prior art.

In order to achieve the above object, the technical solution of the utility model is achieved in that the setting instrument of a kind of cable type static pressure, comprise ring pressure and introduce module, oil sources oil return module and Executive Module, also comprise supercharging module, described ring pressure introduces module, oil sources oil return module, supercharging module and Executive Module set gradually by after forward direction, described supercharging module is by high pressure piston control oil pipe, low pressure piston control oil pipe, oil feed line, return line, pilot operated directional control valve, low pressure piston, high pressure piston, check valve assembly is formed, described pilot operated directional control valve, low pressure piston, high pressure piston and check valve assembly are successively set in the housing corresponding to supercharging module, described high pressure piston control oil pipe, low pressure piston control oil pipe, oil feed line and return line are separately positioned in corresponding housing.

Described oil feed line middle-end is connected with pilot operated directional control valve P mouth by low pressure piston control oil pipe, and oil feed line rear end is connected with high pressure piston rear end; Described return line front end is connected with pilot operated directional control valve T mouth, and return line rear end is connected with low pressure piston rear end; Described high pressure piston front end is connected with low pressure piston rear end, and high pressure piston rear end is connected with pilot operated directional control valve K mouth by high pressure piston control oil pipe; Described low pressure piston front end is connected with pilot operated directional control valve A mouth.

The diameter of described low pressure piston is more than or equal to 2 times of high pressure piston diameter.

Beneficial effect after employing technique scheme is: the setting instrument of a kind of cable type static pressure, pass through the technical program, adopt modular design, supercharging building block technique is utilized to realize Automatic-boosting function, the area ratio of bigbore low pressure piston and small-bore high pressure piston is utilized to realize the pressurized effect maximum with initial pressure, and completed by Executive Module and set operation, to realize static pressure energetically, structure is simple, safe and reliable, fabricating cost is low, possesses thrust large, use safety, stable performance, reliability is high, the feature of good economy performance, by adopting modular design, there is higher interchangeability and feature easy to maintenance.

Accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the structural representation that in the utility model, ring pressure introduces module.

Fig. 4 is the structural representation of oil sources oil return module in the utility model.

Fig. 5 is that the A-A of supercharging module in Fig. 2 is to cross-sectional schematic.

Fig. 6 is that the B-B of supercharging module in Fig. 2 is to cross-sectional schematic.

Fig. 7 is the enlarged diagram of pilot operated directional control valve in Fig. 5.

Fig. 8 is the structural representation of Executive Module in the utility model.

In figure, 1 housing, 2 ring pressures introduce module, 3 oil sources oil return modules, 4 Executive Modules, 5 supercharging modules, 6 oil feed lines, 7 return lines, 8 pilot operated directional control valves, 9 low pressure pistons, 10 high pressure pistons, 11 check valve assemblies, 12 main pistons, 13 one-way valves, 14 pilot operated directional control valve K mouths, 15 pilot operated directional control valve P mouths, 16 pilot operated directional control valve A mouths, 17 pilot operated directional control valve T mouths, 18 high pressure piston control oil pipes, 19 low pressure piston control oil pipes.

Embodiment

Below in conjunction with accompanying drawing, specific embodiment in the utility model is described in further detail.

As Figure 1-Figure 8, the setting instrument of cable type static pressure that the utility model relates to, comprise ring pressure and introduce module 2, oil sources oil return module 3 and Executive Module 4, also comprise supercharging module 5, described ring pressure introduces module 2, oil sources oil return module 3, supercharging module 5 and Executive Module 4 set gradually by after forward direction, described supercharging module 5 is by high pressure piston control oil pipe 18, low pressure piston control oil pipe 19, oil feed line 6, return line 7, pilot operated directional control valve 8, low pressure piston 9, high pressure piston 10 and check valve assembly 11 are formed, described pilot operated directional control valve 8, low pressure piston 9, high pressure piston 10 and check valve assembly 11 are successively set in housing 1 corresponding to supercharging module 5, described high pressure piston control oil pipe 18, low pressure piston control oil pipe 19, oil feed line 6 and return line 7 are separately positioned in corresponding housing 1.

Described oil feed line 6 middle-end is connected with pilot operated directional control valve P mouth 15 by low pressure piston control oil pipe 19, and oil feed line 6 rear end is connected with high pressure piston 10 rear end; Described return line 6 front end is connected with pilot operated directional control valve T mouth 17, and return line 6 rear end is connected with low pressure piston 9 rear end; Described high pressure piston 10 front end is connected with low pressure piston 9 rear end, and high pressure piston 10 rear end is connected with pilot operated directional control valve K mouth 14 by high pressure piston control oil pipe 18; Described low pressure piston 9 front end is connected with pilot operated directional control valve A mouth 16.

The diameter of described low pressure piston 9 is more than or equal to the diameter 2 times of high pressure piston.

Ring pressure introducing module 2 in the utility model, oil sources oil return module 3, Executive Module 4 are prior art, and its working principle is known technology, and at this, it is no longer repeated.

The utility model operationally, after setting tool is lowered into the setting position of specifying, ground control system provides command signal driving ring pressure introducing module 2 and works, initial pressure enters the rodless cavity of the main piston 12 in Executive Module 4 by pipeline, main piston 12 moves, thus provides down-hole to set setting force needed for bridging plug, when having set implementation and having given up, now load is set up, the pressure oil of high pressure piston 10 rear end acts on pilot operated directional control valve hydraulic control K mouth 14 by high pressure piston control oil pipe 18, when its pressure reaches certain value, oil return spool is closed, main valve plug is opened, pilot operated directional control valve P mouth is communicated with pilot operated directional control valve A mouth, realize fluid enters low pressure piston 9 by low pressure piston control oil pipe 19 front end from oil feed line 6, owing to there is the area ratio of nearly 4:1 between low pressure piston 9 and high pressure piston 10, from active force principle, low pressure piston 9 promotes high pressure piston 10 forward end motion together, the front end of high pressure piston 10 can obtain the high supercharging pressure level of nearly 4:1, high pressure oil is acted in the rodless cavity of main piston 12 after check valve assembly 11, reach the object that thrust is amplified, thus realize and complete static pressure energetically giving up operation.

The above, be only better possible embodiments of the present utility model, and be not used to limit scope of the present utility model.

Claims

1. the setting instrument of cable type static pressure, comprise ring pressure and introduce module, oil sources oil return module and Executive Module, it is characterized in that, also comprise supercharging module, described ring pressure introduces module, oil sources oil return module, supercharging module and Executive Module set gradually by after forward direction, described supercharging module is by high pressure piston control oil pipe, low pressure piston control oil pipe, oil feed line, return line, pilot operated directional control valve, low pressure piston, high pressure piston, check valve assembly is formed, described pilot operated directional control valve, low pressure piston, high pressure piston and check valve assembly are successively set in the housing corresponding to supercharging module, described high pressure piston control oil pipe, low pressure piston control oil pipe, oil feed line and return line are separately positioned in corresponding housing.

2. the setting instrument of cable type static pressure according to claim 1, is characterized in that, described oil feed line middle-end is connected with pilot operated directional control valve P mouth by low pressure piston control oil pipe, and oil feed line rear end is connected with high pressure piston rear end; Described return line front end is connected with pilot operated directional control valve T mouth, and return line rear end is connected with low pressure piston rear end; Described high pressure piston front end is connected with low pressure piston rear end, and high pressure piston rear end is connected with pilot operated directional control valve K mouth by high pressure piston control oil pipe; Described low pressure piston front end is connected with pilot operated directional control valve A mouth.

3. the setting instrument of cable type static pressure according to claim 1, is characterized in that, the diameter of described low pressure piston is more than or equal to 2 times of high pressure piston diameter.