CN103437726A - Oil and gas drilling blowout device and method - Google Patents
Oil and gas drilling blowout device and method Download PDFInfo
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- CN103437726A CN103437726A CN2013103660742A CN201310366074A CN103437726A CN 103437726 A CN103437726 A CN 103437726A CN 2013103660742 A CN2013103660742 A CN 2013103660742A CN 201310366074 A CN201310366074 A CN 201310366074A CN 103437726 A CN103437726 A CN 103437726A
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Abstract
The invention discloses an oil and gas drilling blowout device and method. The blowout device comprises a support and a liquid storage tank arranged on the support. The top of the liquid storage tank is provided with a pressure gage and connected with an exhaust pipeline, the tail end of a blowout pipeline is inserted into the upper portion of the liquid storage tank, a baffle is arranged in the position, right opposite to the outlet of the blowout pipeline, of the inner portion of the blowout device, a discharge pipeline which allows processed drilling liquid to be discharged is connected to the lower portion of the liquid storage tank, and a blow-down valve is arranged at the bottom of the liquid storage tank. The drilling liquid enters the blowout device through a throttle manifold and the blowout pipeline after being blown out of a well mouth and is finally discharged into a grit chamber through the discharge pipeline. Blown-out and separated natural gas can be safely ignited and burnt outside a well site, the processed safe drilling liquid is discharged into the grit chamber or recycled through a drilling liquid solid control device, therefore, the drilling liquid can have multiple purposes, the use efficiency is improved, the cost is reduced, and the pollution is also reduced.
Description
Technical field
The present invention relates to the oil/gas drilling field, particularly relate to a kind of oil/gas drilling blow-out release device.
Background technology
In whole drilling well manufacturing process, main pollutant is waste mud and landwaste, with the natural gas returned on circulation of drilling fluid, H
2the mixtures of S gas, oil gas and drilling fluid etc., this pollutant discharge is maximum, and energy consumption, the material consumption maximum processed, also maximum to ambient influnence.In the well control operation process, such as overflow, well kick closing well and kill-job etc., for fear of blowout out of control and prevent that well site from catching fire, and the personnel that may cause thus, equipment, well is dangerous and environment pollution, must the kill-job open flow.As requested, a delivery outlet of throttle kill manifold must connect the long relief line of a 100m, the open flow point is deflected to well site, and build an open flow pond in its exit, with the direct open flow of relief line.In addition, also need environmental protection treatment is carried out in the open flow pond, lay antiseepage cloth.Doing like this is that the mixture of oil, gas, water and drilling fluid in order to give open flow provides storage area, burns harbor is provided for the natural gas fired of open flow simultaneously.The throttle kill manifold of oil/gas drilling comprises open flow valve and blooie pipe etc., can open open flow valve open flow while needing.
This traditional open flow mode has greatly increased the drilling engineering land expropriation cost and has repaired the roads, built the preliminary work for spudding expense of open flow pond and environmental protection treatment thereof.In addition, owing to from well site, 100m being arranged, this processing and re-using to the mixture of oil, gas, water and the drilling fluid in open flow pond has brought larger difficulty, has also increased disposal cost.Even if process like this, adopt the open flow pond still can cause larger pollution to environment.If the well site periphery is all to plough, just can reclaim in the soil after open flow at least 3 years later so.If the well site periphery is resident living area or the tourist attraction in cities and towns, open flow is just larger on the impact of environment.
Summary of the invention
The technical problem to be solved in the present invention is to provide low, the free of contamination oil/gas drilling blow-out release device of a kind of construction costs and open flow method.
For this reason, technical scheme of the present invention is as follows:
A kind of oil/gas drilling blow-out release device comprises support and is located at the fluid reservoir on support that described fluid reservoir top is provided with pressure meter and is connected with exhaust line; The end of relief line stretches into described fluid reservoir top; Described blow-out release device inside is provided with baffle over against described relief line exit; Described fluid reservoir bottom is connected with the discharge pipe of discharging for drilling fluid after processing; Described fluid reservoir bottom is provided with blowoff valve.
Described discharge pipe is provided with floating ball liquid level control valve, and the ball float of described floating ball liquid level control valve is located at described fluid reservoir inside, and described floating ball liquid level control valve opens or closes according to the position of described ball float.
Described baffle be summit upper, bottom under the conical surface, described baffle has multilayer, and the diameter of lower floor's baffle bottom surface is greater than the diameter of baffle bottom surface, upper strata.
Described multilayer baffle is comprised of at upper conical surface baffle plate and a plurality of fan shape baffle summit, and fan shape baffle is positioned at conical surface baffle plate below, and each fan shape baffle is arranged in order.
A kind of oil/gas drilling open flow method, comprise the steps:
1) drilling fluid, from the well head open flow, enters the fluid reservoir top of described blow-out release device through choke manifold, relief line;
2) drilling fluid that enters fluid reservoir top impacts baffle and forms turbulent flow, and gas wherein rises, and through exhaust line, discharges and auto-ignition combustion; Drilling fluid is stored in fluid reservoir, and when the ball float height is spacing higher than height, floating ball liquid level control valve is opened, and makes drilling fluid discharge through discharge pipe; When the ball float height, lower than low when spacing, floating ball liquid level control valve is closed.
Step 2), in, the drilling fluid of discharging through discharge pipe, enter grit chamber.
The natural gas that this oil/gas drilling blow-out release device can separate open flow is the safety ignition burning outside well site, the drilling fluid of the safety after processing is entered in sand trap, or directly recycle by Solids control for drilling fluids equipment.Can not only meet better like this " health, safety, environmental protection " requirement, and more economical, can be widely used in prospect pit, producing well and Pressure Curve in Oil Testing Well.
The accompanying drawing explanation
Fig. 1 is the structural representation of oil/gas drilling blow-out release device of the present invention;
Fig. 2 is a kind of embodiment schematic diagram of baffle in oil/gas drilling blow-out release device of the present invention;
Fig. 3 is the kill-job open flow system flow schematic diagram that oil/gas drilling blow-out release device of the present invention is housed.
The specific embodiment
Concrete structure below in conjunction with drawings and Examples to blow-out release device of the present invention is elaborated.
As shown in Figure 1, a kind of oil/gas drilling blow-out release device comprises support 1 and is located at the fluid reservoir 2 on support that fluid reservoir 2 tops are provided with pressure meter 3 and are connected with exhaust line 4; The end of relief line 5 stretches into fluid reservoir 2 tops; Fluid reservoir 2 inside are provided with baffle 6 over against relief line 5 exits, baffle 6 be shaped as summit upper, bottom under the conical surface; Fluid reservoir 2 bottoms are connected with the discharge pipe 7 of discharging for drilling fluid after processing; Discharge pipe 7 is provided with floating ball liquid level control valve 9, and the ball float 91 of floater controlled valve 9 is located at fluid reservoir 2 inside, according to ball float 91, highly controls opening or closing of floating ball liquid level control valve 9; Fluid reservoir 2 bottoms are provided with blowoff valve 8.
With the difference of oil/gas drilling blow-out release device in embodiment 1, be: baffle 6 is provided with multilayer, and the diameter of lower floor's baffle bottom surface is greater than the diameter of baffle bottom surface, upper strata.
With the difference of oil/gas drilling blow-out release device in embodiment 1, be: baffle 6 is provided with multilayer, summit, at upper conical surface baffle plate and a plurality of fan shape baffle, consists of, and fan shape baffle is positioned at conical surface baffle plate below, and each fan shape baffle is arranged in order, as shown in Figure 2.
The setting of multilayer baffle plate, make gas be easier to remove from drilling fluid, improves separative efficiency.
In application above-described embodiment, the open flow method of oil/gas drilling blow-out release device comprises the steps:
1) drilling fluid, from the well head open flow, enters fluid reservoir 2 tops of described blow-out release device through choke manifold, relief line 5;
2) drilling fluid that enters fluid reservoir 2 tops impacts baffle 6 formation turbulent flows, and gas wherein rises, and through exhaust line 4, discharges and automatic ignitions; Drilling fluid is stored in fluid reservoir, and when ball float 91 height, during higher than the spacing a of height, floating ball liquid level control valve 9 is opened, and makes drilling fluid discharge through discharge pipe 7; When ball float 91 height, during lower than low spacing b, floating ball liquid level control valve 9 is closed.
Step 2), in, the drilling fluid of discharging through discharge pipe 7, enter grit chamber.
With reference to existing same category of device setting parameter, the drilling fluid treating capacity that can design this oil/gas drilling blow-out release device is 120～330m
3/ h(33.3～91.7L/s), the gas treatment amount is 3500～32540m
3/ h(972.2～9038.9L/s), operating pressure (frictional resistance when gas is discharged by stack) is 0.7～1.6MPa, its disposal ability can meet the needs of open flow in most cases, and scene can be matched according to the situation of concrete well, also will ensure certain safe clearance.
Blow-out release device of the present invention can be combined use with original sand trap or slurry tank, realizes open flow and processing, recovery drilling fluid.By this device, the natural gas that open flow can be separated is the safety ignition burning outside well site, and the drilling fluid of safety after processing is entered in sand trap, also can directly enter the circulating system and recycle by Solids control for drilling fluids equipment.So both accomplished to have improved service efficiency by one-object-many-purposes, reduced cost, and can reduce pollution again.
This blow-out release device is to integrate throttling, water conservancy diversion, the oil and gas and water multi-function device from, automatic ignition.Prospect pit, producing well and Pressure Curve in Oil Testing Well can be installed and used.Should control the pressure testing standard that the open flow back pressure is no more than the blowout prevention pipeline during use.By using this device, the natural gas that can will invade in well in time in liquid such as sneaking into drilling fluid in the operations such as under balance pressure drilling, well control, formation testing is separated, and ignition reaches again the purpose that reclaims drilling fluid.
Claims (7)
1. an oil/gas drilling blow-out release device, it is characterized in that: comprise support (1) and be located at the fluid reservoir (2) on support, described fluid reservoir (2) top is provided with pressure meter (3) and is connected with exhaust line (4); The end of relief line (5) stretches into described fluid reservoir (2) top; Described blow-out release device (2) is inner is provided with baffle (6) over against described relief line (5) exit; Described fluid reservoir (2) bottom is connected with the discharge pipe (7) of discharging for drilling fluid after processing; Described fluid reservoir (2) bottom is provided with blowoff valve (8).
2. oil/gas drilling blow-out release device as claimed in claim 1, it is characterized in that, described discharge pipe (7) is provided with floating ball liquid level control valve (9), the ball float (91) of described floating ball liquid level control valve (9) is located at described fluid reservoir (2) inside, and described floating ball liquid level control valve (9) opens or closes according to the position of described ball float (91).
3. oil/gas drilling blow-out release device as claimed in claim 1, is characterized in that, described baffle (6) be summit upper, bottom under the conical surface.
4. oil/gas drilling blow-out release device as claimed in claim 3, is characterized in that, described baffle (6) has multilayer, and the diameter of lower floor's baffle bottom surface is greater than the diameter of baffle bottom surface, upper strata.
5. oil/gas drilling blow-out release device as claimed in claim 4, is characterized in that, described multilayer baffle (6) is comprised of at upper conical surface baffle plate and a plurality of fan shape baffle summit, and fan shape baffle is positioned at conical surface baffle plate below, and each fan shape baffle is arranged in order.
6. an oil/gas drilling open flow method, is characterized in that: comprise the steps:
1) drilling fluid, from the well head open flow, enters fluid reservoir (2) top of described blow-out release device through choke manifold, relief line (5);
2) drilling fluid that enters fluid reservoir (2) top impacts baffle (6) formation turbulent flow, and gas wherein rises, and through exhaust line (4), discharges and automatic ignition; Drilling fluid is stored in fluid reservoir, and when ball float (91) height, during higher than height spacing (a), floating ball liquid level control valve (9) is opened, and makes drilling fluid discharge through discharge pipe (7); When ball float (91) height, during lower than low spacing (b), floating ball liquid level control valve (9) is closed.
7. oil/gas drilling open flow method as claimed in claim 6, is characterized in that: step 2) in, the drilling fluid of discharging through discharge pipe (7), enter grit chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103660742A CN103437726A (en) | 2013-08-21 | 2013-08-21 | Oil and gas drilling blowout device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103660742A CN103437726A (en) | 2013-08-21 | 2013-08-21 | Oil and gas drilling blowout device and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545277A (en) * | 2016-02-17 | 2016-05-04 | 成都高峰石油机械有限公司 | Drilling fluid blow-off system for oil exploitation |
| CN105569590A (en) * | 2016-02-17 | 2016-05-11 | 成都高峰石油机械有限公司 | Circulating drilling fluid blowout treatment system |
| CN105735921A (en) * | 2016-02-17 | 2016-07-06 | 成都高峰石油机械有限公司 | Blowout system with sediment processing function |
| CN104405361B (en) * | 2014-11-25 | 2017-03-15 | 青岛汇森能源设备股份有限公司 | Skid-mounted type open flow gas recovery system and recovery method |
| CN112283745A (en) * | 2020-10-15 | 2021-01-29 | 山东科瑞油气装备有限公司 | Remote ignition system of natural gas drilling machine and using method |
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| US20050269135A1 (en) * | 2004-06-04 | 2005-12-08 | Matt Swartout | Continuous positive flow backflash prevention system |
| CN2923999Y (en) * | 2005-11-18 | 2007-07-18 | 中国石油天然气股份有限公司 | Oil-well automatic metering device |
| US20110114389A1 (en) * | 2008-06-30 | 2011-05-19 | Harold Dean Mathena | Ecologically sensitive mud-gas containment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405361B (en) * | 2014-11-25 | 2017-03-15 | 青岛汇森能源设备股份有限公司 | Skid-mounted type open flow gas recovery system and recovery method |
| CN105545277A (en) * | 2016-02-17 | 2016-05-04 | 成都高峰石油机械有限公司 | Drilling fluid blow-off system for oil exploitation |
| CN105569590A (en) * | 2016-02-17 | 2016-05-11 | 成都高峰石油机械有限公司 | Circulating drilling fluid blowout treatment system |
| CN105735921A (en) * | 2016-02-17 | 2016-07-06 | 成都高峰石油机械有限公司 | Blowout system with sediment processing function |
| CN112283745A (en) * | 2020-10-15 | 2021-01-29 | 山东科瑞油气装备有限公司 | Remote ignition system of natural gas drilling machine and using method |
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Application publication date: 20131211 |