CN204591222U - Well control signal issues instrument - Google Patents

Abstract

A kind of well control signal that the utility model relates in petroleum drilling, workover treatment process issues instrument.Its technical scheme is: primarily of parts compositions such as power supply, control button, electromagnetic valve instruction control circuit, explosion-proof control boxes.The logical operation control circuit of described electromagnetic valve instruction control circuit is connected with control circui panel, be provided with LCDs, setting button, counting regulating key, by regulating setting button can arrange the different control signal program of storage with counting regulating key, and simultaneous display is on LCDs.During application, steam whistle can be controlled after pressing different control buttons and send corresponding alarm signal; The beneficial effects of the utility model are: need special messenger to press the button when solving down-hole overflow and signal and delay the phenomenon of closed-in time, also field control personnel can be avoided to forget, obscure the possibility of various alarm signal, can ensure to close, drive a well operation time send the accuracy of well control alarm signal.

Description

Well control signal issues instrument

Technical field

The utility model is applied to the career field such as petroleum drilling operation and workover treatment, particularly bores, in workover treatment process, need after there are the complex situations such as overflow, well kick to carry out to close, drive a well job execution time a kind of well control signal issue instrument.

Background technology

In oil drilling or well-repairing work, when the drilling fluid in well or workover fluid can not balance bottom pressure, well head overflow will be there is, well kick, even gas blowout accident is there is time serious, overflow, well kick, when gas blowout accident occurs, the fluid of spraying and spoiling over out in well, sometimes containing poisonous and hazardous hydrogen sulfide gas, so when in well, overflow occurring, during well kick, corresponding alarm signal will be sent rapidly, then closing well is carried out according to well control operation procedure, object utilizes the well-control equipment on ground and suitable well control technique to make borehole pressure rebuild balance, avoid the generation of gas blowout accident.In this operation process, the primary first step will send overflow alarm signal or hydrogen sulfide overflow alarm signal in the very first time exactly, also will send subsequently and close log signal, drive a well signal etc.At present, all rely on field personnel to control whistle control and send when sending signal at brill, workover treatment scene, and field personnel is when sending signal according to whistle control, other operations can be delayed, this does not meet well control three principle---" early controlling, the early process " principle in " early finding; early control, early process "; Secondly execute-in-place workman is when controlling whistle control and issuing signal, cause sending rub-out signal because obscuring or forget signal sometimes, and mislead execute-in-place workman, and then affect follow-up pass, drive a well operation, What is more also can cause gas blowout accident or blowout out of control occur.

Utility model content

The purpose of this utility model is exactly in view of the foregoing defects the prior art has, a kind of well control signal is provided to issue instrument, can in brill, workover treatment process, signalling closing well is needed once phenomenon such as generation overflow, well kick etc., after clicking corresponding button, just automatically can control steam whistle and send the alarm signal preset; Also effectively can avoid the generation that signal sends out accident wrong simultaneously, and then when ensureing to occur in drillng operation that overflow needs closing well, can normal safe operation.

Its technical scheme is: the well control signal of design is issued instrument and comprised the parts such as power supply, control button, electromagnetic valve instruction control circuit, explosion-proof control box; Described power supply mainly comprises the parts such as ac power input end, input power switch, overload protection arrangement, power supply indicator, transformer, rectifier, and the AC power of input converts 24 volts of DC voltages to for electromagnetic valve instruction control circuit and electromagnetic valve after transformer, rectifier provides power supply; Described control button comprises call button, reset button, the quantity of call button conforms to needing the signal kinds quantity issued, each call button is arranged on explosion-proof control box surface, logical operation control circuit can be made after pressing different call buttons to send corresponding control signal by the scheme preset to electromagnetic valve, thus control steam whistle send corresponding alarm signal; Described electromagnetic valve instruction control circuit mainly comprises logical operation control circuit, relay, control circui panel; Described logical operation control circuit is connected with control circui panel, control circui panel is provided with LCDs, setting button, counting regulating key, by regulating setting button can arrange the different control signal program of storage with counting regulating key, and simultaneous display is on LCDs; Described source of the gas and gas circuit control element mainly comprise steam whistle, electromagnetic valve, whistle control, source of the gas etc.During application, at the upper electromagnetic valve in parallel of the control gas circuit air cock (whistle control) of steam whistle, other one that forms steam whistle controls gas circuit, and the break-make of this gas circuit is subject to the control of electromagnetic valve, and the switching state of electromagnetic valve controls by logical operation control circuit.

The beneficial effects of the utility model are: need special messenger to press the button when solving down-hole overflow and signal and delay the phenomenon of closed-in time, meet well control three principle---" control morning, the process morning " principles and requirements in " early discovery, control morning, early process ", for the safe construction in drilling operation course provides guarantee; Secondly, application of the present utility model also can avoid field control personnel to forget, obscure possibility of various alarm signal, ensure pass, drive a well operation time send the accuracy of well control alarm signal.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is functional-block diagram of the present utility model.

In accompanying drawing: ac power input end (1), input power switch (2), overload protection arrangement (3), transformer (4), rectifier (5), logical operation control circuit (6), control circui panel (7), call button (8), reset button (9), electromagnetic valve (10), source of the gas (11), whistle control (12), steam whistle (13), power supply indicator (14).

Detailed description of the invention

In conjunction with Figure of description, the utility model will be further described: the utility model comprises ac power input end (1), input power switch (2), overload protection arrangement (3), transformer (4), rectifier (5), logical operation control circuit (6), control circui panel (7), call button (8), reset button (9), electromagnetic valve (10), source of the gas (11), whistle control (12), steam whistle (13), power supply indicator (14), explosion-proof control box, aviation plug etc.; Described input power switch (2) is arranged on outside explosion-proof control box, in order to control the break-make of ac power input end (1); Described overload protection arrangement (3), transformer (4), rectifier (5), logical operation control circuit (6), control circui panel (7) are arranged in explosion-proof control box; Described call button (8), reset button (9), power supply indicator (14) are arranged on explosion-proof control box panel; Described explosion-proof control box adopts overall flame proof technology, explosive-proof grade is ExdIIBT6, input ac voltage is 380 volts or 220 volts, after input after input power switch (2), overload protection arrangement (3), transformer (4), rectifier (5), exporting 24 volts of DC voltages is logical operation control circuit (6), electromagnetic valve (10) power supply; The control gas circuit of steam whistle (13) is serially connected with the control gas circuit with electromagnetic valve (10), the duty of described electromagnetic valve (10) is normally off, and described electromagnetic valve (10) is connected by aviation plug with explosion-proof control box; Described electromagnetic valve (10) is alteration switch state by the control of logical operation control circuit (6), thus control steam whistle (13) sends corresponding alarm signal; Described control circui panel (7) is provided with setting button, counting regulating key and display screen, in order to set the duty of logical operation control circuit (6); Described call button (8), reset button (9) send control instruction signal in order to give logical operation control circuit (6), when pressing any one button in call button (8), logical operation control circuit (6) can send corresponding control signal to electromagnetic valve (10), and then control steam whistle (13) sends corresponding alarm signal, when pressing reset button (9), logical operation control circuit (6) will be made standby, no longer send any signal to electromagnetic valve (10).

Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, the common technique personnel of this area are to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.

Claims (1)

1. oil drilling well control signal issues an instrument, it is characterized in that: comprise power supply, control button, electromagnetic valve instruction control circuit, explosion-proof control box; Described power supply mainly comprises ac power input end (1), input power switch (2), overload protection arrangement (3), power supply indicator (14), transformer (4), rectifier (5), and it is that electromagnetic valve instruction control circuit and electromagnetic valve (10) provide power supply that the AC power of input converts 24 volts of DC voltages to after transformer (4), rectifier (5); Described control button comprises call button (8), reset button (9), the quantity of call button (8) conforms to needing the signal kinds quantity issued, each button is arranged on explosion-proof control box surface, the scheme that logical operation control circuit (6) can be made after pressing different buttons to press preset sends corresponding control signal to electromagnetic valve (10), thus controls steam whistle (13) and send corresponding alarm signal; Described electromagnetic valve instruction control circuit mainly comprises logical operation control circuit (6), relay, control circui panel (7); Described logical operation control circuit (6) is connected with control circui panel (7), control circui panel (7) is provided with LCDs, setting button, counting regulating key, by regulating setting button can arrange the different control signal program of storage with counting regulating key, and simultaneous display is on LCDs; Source of the gas and gas circuit control element mainly comprise steam whistle (13), electromagnetic valve (10), whistle control (12), source of the gas (11).