CN2809203Y

CN2809203Y - Intelligent multifunctional plugging device

Info

Publication number: CN2809203Y
Application number: CNU2005201116904U
Authority: CN
Inventors: 杨朝杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-06
Filing date: 2005-07-06
Publication date: 2006-08-23
Anticipated expiration: 2015-07-06

Abstract

The utility model relates to an intelligent multifunctional plugging device which belongs to a water and oil extracting device for oil fields. The utility model has the structure that a salvaging head and a cam socket of the intelligent multifunctional plugging device are clamped in a seat sealing step; an upper pressure sensor is arranged in the side wall of a sealing sleeve, and a binding post of the upper pressure sensor is connected with a circuit control board which is connected with a motor; a transmission shaft is arranged in a central hole of an upper main body which is connected with the sealing sleeve, and the side wall of the lower end of the upper main body is provided with a liquid inlet hole; a sealing sleeve is sheathed on the transmission shaft; an upper and a lower sealing post plugs with through holes are connected together through a shaft and then are connected with the lower end of the transmission shaft; a pressure transmitting hole is arranged on the side wall of a lower main body and is communicated with a cavity for placing a pressure meter; a liquid outlet hole is arranged on the other side wall of the lower main body; the upper and the lower main bodies are connected with each other, and the outer diameter of the lower sealing post plug corresponds to the hole diameter of the narrowest point of the central hole of the lower main body; a casing provided with the pressure meter in the cavity is connected with the lower main body. The utility model has the advantages that as long as a pipe post of a complete well is lifted once, the utility model can accomplishes pressure measurement, sampling and water plugging find and reduces the operation strength.

Description

A kind of intelligent multi-function blanking plug

Technical field: the utility model relates to a kind of intelligent multi-function blanking plug, belongs to oil field Cai Shui, extracting device of oil.

Background technology: at present, in to oil well sampling, pressure measurement, water blockoff process, usually use sliding sleeve switch, every survey one deck is all wanted pitching and is suppressed and lay sliding sleeve pump sampling, pressure measurement, not only time-consuming but also take a lot of work, and after finishing sampling, pressure measurement, also to trip out full well casing post, next time water plugging string has increased operation intensity greatly again.

Summary of the invention: the purpose of this utility model is exactly at above-mentioned prior art deficiency, and a kind of intelligent multi-function blanking plug is provided; When water blockoff, pressure measurement, sampling, only need next time working string, in each interval, all insert a kind of intelligent multi-function blanking plug, according to the time parameter is set by the program in the circuit control panel and comes the switch liquid inlet/outlet, after the pressure measurement sampling, pull a kind of intelligent multi-function blanking plug out, playback stratum static pressure and tubing string internal pressure recovery curve, oil sample in the laboratory sampling chamber, only need be lowered to high aquifer and to have the blanking plug of extremely chewing and just can, thereby finished intelligence and looked for water blockoff, pressure measurement, sampling operation, reduced labour intensity greatly.

The technical solution of the utility model is: a kind of intelligent multi-function blanking plug, form by main body, pressure gauge housing under main body, lower seal plunger, the instrument on blanking plug fishing head, cam, instrument sealing shroud, upward pressure sensor, circuit control panel, motor, power transmission shaft, sealing shroud, last sealed plunger, the instrument; In the present envelope of the blanking plug fishing head upper end base step; Cam is stuck in the envelope step, and the cam lower end is connected with the instrument sealing shroud; The upward pressure sensor places in the instrument sealing shroud sidewall, and the terminals of upward pressure sensor link to each other with the terminals of circuit control panel; The terminals of circuit control panel link to each other with the terminals of motor; Power transmission shaft lower end on the motor places in the centre bore of main body on the instrument, main body upper end and instrument sealing shroud lower end are with being threaded on the instrument, simultaneously circuit control panel, motor are fixed in the cavity that constitutes between the two, have inlet opening on the sidewall of main body lower end on the instrument; On power transmission shaft, be with sealing shroud, seal with sealing ring; The last sealed plunger and the lower seal plunger that have lower through-hole link together by axle, and upward the upper end of sealed plunger is connected with the power transmission shaft lower end; Have an inverted "L" shaped pressure transmission hole in the side sidewall of main body under the instrument, and two turnover ports of pressure transmission hole are communicated with the space outerpace of the sidewall of main body under the instrument and the space outerpace of bottom respectively; Have the fluid hole that communicates with its centre bore on the opposite side sidewall of main body under the instrument; The main body upper end is threaded with main body lower end on the instrument under the instrument, and the lower seal plunger is positioned at the centre bore of main body under the instrument, and the narrow place of main center's Kongzui matched in clearance under lower seal plunger and the instrument; Put in the chamber that the main body lower end is to be threaded under manometric housing and the instrument, the pressure transmission hole lower port communicates with the cavity of housing.

The present invention compared with prior art has following advantage: 1, have sampling cavity, can accurately take out the true oil sample in stratum, make analysis data more accurate; 2, only need next time working string, fall ground labour intensity greatly; 3, do not need the pressure car to suppress and the switch liquid inlet/outlet is finished in intellectuality, the time and labour saving;

Description of drawings: accompanying drawing is a kind of intelligent multi-function plug structure figure.

The specific embodiment: a kind of intelligent multi-function blanking plug, form by main body 14, housing 15 under main body 10, lower seal plunger 13, the instrument on blanking plug fishing head 1, cam 2, instrument sealing shroud 3, upward pressure sensor 4, circuit control panel 5, motor 6, power transmission shaft 7, sealing shroud 8, last sealed plunger 9, the instrument; In the present envelope of the blanking plug fishing head 1 upper end base step 21; Cam 2 is stuck in the envelope step 21, and its lower end is connected with instrument sealing shroud 3; Upward pressure sensor 4 places in instrument sealing shroud 3 sidewalls, and the terminals of upward pressure sensor 4 link to each other with the terminals of circuit control panel 5; The terminals of circuit control panel 5 link to each other with the terminals of motor 6; Power transmission shaft 7 lower ends on the motor 6 place in the centre bore of main body 10 on the instrument, main body 10 upper ends and instrument sealing shroud 3 lower ends are with being threaded on the instrument, simultaneously circuit control panel 5, motor 6 are fixed in the cavity that constitutes between the two, have inlet opening 11 on the main body 10 lower end sidewalls on the instrument; On power transmission shaft 7, be with sealing shroud 8, seal with sealing ring; Have the last sealed plunger 9 of lower through-hole and lower seal plunger 13 and link together, and the upper end of going up sealed plunger 9 is connected with power transmission shaft 7 lower ends by axle; Have an inverted "L" shaped pressure transmission hole 12 in the side sidewall of main body 14 under the instrument, and two turnover ports of pressure transmission hole 12 are communicated with the space outerpace of the sidewall of main body 14 under the instrument and the space outerpace of bottom respectively; Have the fluid hole 17 that communicates with its centre bore under the instrument on the opposite side sidewall of main body 14; Main body 14 upper ends are threaded with main body 10 lower ends on the instrument under the instrument, and lower seal plunger 13 is positioned at the centre bore of main body 14 under the instrument, and the narrow place of main body 14 center Kongzuis matched in clearance under lower seal plunger 13 and the instrument; Put manometric housing 15 in the chamber and be threaded with main body 14 lower ends under the instrument, pressure transmission hole 12 lower port communicate with the cavity of housing 15.

A kind of intelligent multi-function blanking plug that assembles can place the center of being made up of top connection 18, seat envelope step 21, connecting cylinder 20, central task tube 25, lower contact 23 to join and produce injection well downhole flow regulator, 21 on seat envelope step is on the shelves platform of the endoporus upper end of connecting cylinder 20, to be threaded; Connecting cylinder 20 bottoms have liquid passing net slit 22; Top connection 18 and connecting cylinder 20 tops are to be threaded, and it is spacing that seat is sealed step 21, prevent string on the envelope step 21; Central task tube 25 is sleeved on the instrument outside the main body 10, and its upper end is threaded in addition with connecting cylinder 20 middle parts; The sidewall of central task tube 25 has waterway 19 from top to bottom, its sidewall middle part has and waterway 19 vertical disconnected liquid inlet/outlets 24, and the liquid inlet/outlet 24 at central task tube 25 middle parts is positioned at liquid passing net slit 22 places of connecting cylinder 20 bottoms, and the gravel in the liquid in-out is filtered; Central task tube 25 lower ends are threaded in addition with lower contact 23.

During working string, each layer of a kind of intelligent multi-function blanking plug that assembling is finished is lowered to one, before running string, the power transmission shaft 7 of regulating motor 6 makes sealed plunger 9 and lower seal plunger 13 seal inlet opening 11 and fluid hole 17, behind the intact tubing string of operation, suppress bloated sealed packer, upward pressure sensor 4 on a kind of intelligent multi-function blanking plug of each layer induces the pressure variation and is transferred on the circuit control panel 5, program in the circuit control panel 5 is provided with the rotation of the motor 6 of parameter in controlling every layer step by step from bottom to top by the time, making power transmission shaft 7 drive to go up on sealed plunger 9 and the lower seal plunger 13 moves, make inlet opening 11, fluid hole 17 is opened, and begins the operation of pumping; Behind the certain hour, program controlled motors 6 rotations in the next stage circuit control panel 5, make last sealed plunger 9 of power transmission shaft 7 drives and lower seal plunger 13 descending, close inlet opening 11 and fluid hole 17, at this moment the oil reservoir oil sample has been enclosed in the sampling cavity 16, static reservoir pressure imports in the cavity of housing 15 by pressure transmission hole 12 simultaneously, measures static reservoir pressure by pressure gauge, and upward pressure sensor 4 is measured the build-up of fluid pressure curve of this oil reservoir; Simultaneously, inlet opening 11 and fluid hole 17 in a kind of intelligent multi-function blanking plug in the last layer are opened, and pump as basecoat, close, operation such as pressure measurement sampling; In a word, make progress successively, after operation is finished from basecoat, salvage a kind of intelligent multi-function blanking plug successively from last layer, oil sample in the sampling cavity in each layer 16 is carried out moisture chemical examination, and the static pressure of the housing of playback simultaneously 15 inner gauges record is so that adjust geological scheme; Build-up of fluid pressure curve value in the upward pressure of the playback simultaneously sensor 4 is calculated the individual layer production capacity; Finish above work, the blanking plug that a band is extremely chewed is thrown in the high aquifer of chemically examining out, other oil reservoirs can drop into the blanking plug that band control water water is chewed, can not throw yet, trip out the tubing string of giving up at last, be lowered to oil well pump, finish water blockoff, pressure measurement, the sampling work of looking for, the normal oil recovery of beginning produced.

A kind of intelligent multi-function blanking plug also can be joined with the center of other structures and produced injection well downhole flow regulator and be used in combination, and finishes and looks for water blockoff, pressure measurement and sampling operation, also can use with coordinative composition of equipments such as eccentric injection mandrel.

Claims

A kind of intelligent multi-function blanking plug is made up of main body (14), housing (15) under main body (10), lower seal plunger (13), the instrument on blanking plug fishing head (1), cam (2), instrument sealing shroud (3), upward pressure sensor (4), circuit control panel (5), motor (6), power transmission shaft (7), sealing shroud (8), last sealed plunger (9), the instrument; It is characterized in that: in blanking plug fishing head (1) the upper end base present envelope step (21); Cam (2) is stuck in the envelope step (21), and its lower end is connected with instrument sealing shroud (3); Upward pressure sensor (4) places in instrument sealing shroud (3) sidewall, and the terminals of upward pressure sensor (4) link to each other with the terminals of circuit control panel (5); The terminals of circuit control panel (5) link to each other with the terminals of motor (6); The lower end of the power transmission shaft (7) on the motor (6) places in the centre bore of main body on the instrument (10), main body on the instrument (10) upper end and instrument sealing shroud (3) lower end are with being threaded, simultaneously circuit control panel (5), motor (6) are fixed in the cavity that constitutes between the two, have inlet opening (11) on the sidewall of main body on the instrument (10) lower end; On power transmission shaft (7), be with sealing shroud (8), seal with sealing ring; Have the last sealed plunger (9) of lower through-hole and the two ends that lower seal plunger (13) is connected axle, and upward the upper end of sealed plunger (9) is connected with power transmission shaft (7) lower end; Have an inverted "L" shaped pressure transmission hole (12) in the one side sidewall of main body under the instrument (14), and two turnover ports of pressure transmission hole (12) are communicated with the space outerpace of sidewall of main body under the instrument (14) and the space outerpace of bottom respectively; Have the fluid hole (17) that communicates with its centre bore on the opposite side sidewall of main body under the instrument (14); Main body under the instrument (14) upper end is threaded with main body (10) lower end on the instrument, and lower seal plunger (13) is positioned at the centre bore of main body under the instrument (14), and the narrow place of Kongzui, main body (14) center matched in clearance under lower seal plunger (13) and the instrument; Put in the chamber that main body (14) lower end is to be threaded under manometric housing (15) and the instrument, pressure transmission hole (12) lower port communicates with the cavity of housing (15).