CN207048714U - A kind of complex function wellhead assembly - Google Patents

Abstract

The utility model discloses a kind of complex function wellhead assembly, belong to wellhead assembly technical field, including the first pipeline located at well head, first pipeline is provided with the first valve and pressure gauge, the first pipeline both sides are respectively equipped with second pipe and the 3rd pipeline, and the second pipe and the 3rd pipeline are connected by check valve.The utility model can directly determine whether it is fuel-displaced, with it is existing it is artificial repeatedly see whether it is fuel-displaced compared with, fluid will not be caused to waste and pollution, save man power and material, and the utility model is simple in construction, it is easy to install.

Description

A kind of complex function wellhead assembly

Technical field

A kind of wellhead assembly technical field that the utility model belongs in the production of oil field, and in particular to complex function well head dress Put.

Background technology

In current oil field production scene, observe after individual well well workover or measure completion whether it is fuel-displaced when, it is necessary to it is artificial repeatedly Carry out scene checks, check whether it is fuel-displaced, if checked not in time, it is likely that cause fluid to flow out, cause environmental pollution and Fluid wastes；Simultaneously because scene misoperation sometimes, make header crude oil (pressure is higher) pour in down a chimney to the well shaft (pressure compared with It is low), it is impossible to whether the accurate judgement well is normal after completion, and influences yield.Individual well oil sample is gathered to determine the well moisture content, So as to calculate crude output according to Liquid output.

Existing sampling method samples for three-level.Three-level samples：

1st, close back pressure valve (the high well of Liquid output can be not related to back pressure valve)；

2nd, sample cock is slowly opened, dead oil is put into sump oil barrel, when having seen fresh oil ejection, closes sampling valve Door；

3rd, sampling bung is opened, sample bucket is directed at the outlet of sampling elbow, slowly opening sample cock when polished rod is up takes Sample, at get sample bucket total measurement (volume) 1/4, sample cock is closed, opens back pressure valve；

4th, it is spaced 2 minutes, repeats last time operation, carries out respectively second and third time samples, respectively get sample bucket total measurement (volume) 1/2 at and 3/4 at, total sampling amount is no less than 500ml；

5th, sampling finishes, and opens back pressure valve.The completion after individual well well workover or all kinds of technological measures at present, Oil Field oil Field generally takes closing back pressure to open emptying valve and waits oil well liquid output, and whether three-level sampling energy accurate observation goes out liquid to oil well Judge total completion time.

But the above method has following defect：

1st, after individual well well workover or measure completion, but due to cannot know when liquid, it is necessary to which staff's interruption is live Observe liquid situation, it is possible to cause out the excessive staff of liquid to recover flow not in time and cause crude oil to overflow pollution ground, wave Excessive fuel consumption product, do not meet environmental requirement.

Although the 2, the sampling of three-level sampling valve is accurate, operation inconvenience, the time is long and has oil product waste, according to current environmental protection It is required that emptying crude oil recovery difficulty is high.

3rd, current individual well oil air content measures without the method for simplicity.

4th, it is not easy to judge whether individual well goes out liquid or well of lying.

Utility model content

The technical problems to be solved in the utility model be to provide can Optimization Work efficiency, avoid wasting and reach environmental protection will Ask, multifunctional wellhead device simple to operate and short the operating time, it can realize observation pressure gauge and then rapid examination well head Go out the function of liquid, and avoid the problems such as causing fluid outflow waste and environmental pollution.

To reach above-mentioned purpose, the technical solution of the utility model is as follows：

A kind of complex function wellhead assembly, including the first pipeline located at well head, first pipeline are provided with the first valve Door and pressure gauge, the first pipeline both sides are respectively equipped with second pipe and the 3rd pipeline, and the second pipe and the 3rd pipe Road is connected by check valve.

In a preferred embodiment of the present utility model, the second pipe sidepiece connects sampling dress by the second valve Put.

In a preferred embodiment of the present utility model, the sampler includes sampling container, sampling pipe nipple and connection Ball valve, for the sampling container successively with the sampling pipe nipple and being connected ball valve and connecting, the sampling container passes through second valve Door is connected with the sidepiece of the second pipe.

In a preferred embodiment of the present utility model, the junction of the second pipe and first pipeline is provided with disorderly Flowing plate.

In a preferred embodiment of the present utility model, first pipeline includes the first nipple joint, the first branch, the Two branches are connected with the 3rd branch, and first nipple joint and the first branch are connected by the first triple valve, described first point Branch is connected with second branch one end by the first valve, the other end of second branch by the second triple valve with it is described 3rd branch connects.

In a preferred embodiment of the present utility model, the second pipe and the 3rd pipeline pass through the first triple valve respectively It is connected with the second triple valve with first pipeline.

In a preferred embodiment of the present utility model, the 3rd pipeline includes elbow and the second nipple joint, The elbow is connected by reducing joint with second nipple joint.

In a preferred embodiment of the present utility model, the check valve bottom is provided with the list for being used for fixing the check valve Pipe nipple is fixed to valve.

In a preferred embodiment of the present utility model, the both ends of first pipeline are connected by ring flange or screw thread connects Connect and be fixed in well head.

Pass through above-mentioned technical proposal, the beneficial effects of the utility model are：

The utility model can detect whether fuel-displaced, all be after emptying, fluid directly passes through pipeline stream in the prior art Go out, just in case staff not at the scene, can cause fluid to waste and pollution；Simultaneously as pressure and pipeline in pipeline it Between connection, may cause fluid pouring in down a chimney in pipeline, pollute pipeline and influence to use.The application is directly pressed by observing Power table, you can know whether fuel-displaced, simultaneously as the setting of check valve, fluid when fuel-displaced in pipe breaks through check valve, directly flows Go out；The staff before outflow ensure that fluid will not flow out waste it has been found that fuel-displaced.

The utility model can not be vented carry out primary sample, while possessing turbulence plate and avoiding the occurrence of laminar flow causes sampling inaccurate Really, crude oil is avoided to waste, meet the requirement of environmental protection, and sampling is more accurate, saves the time.

The utility model can not have to emptying after individual well well workover or measure, and when viewing individual well goes out liquid.The time is saved, is kept away Exempting to go out suddenly liquid causes ground pollution to waste oil product meet the requirement of environmental protection, it is ensured that whether individual well goes out liquid.

The utility model can realize oily air content and sight of the simple measurement individual well under normal pressure while sampling The whether normal functions of Cha Jing.

The utility model can build the pressure without individual well single checks whether individual well goes out liquid, can be same with all individual wells in well site When build the pressure to check, save the time, do not have hypertonia close not in time cause thorn leak.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is a kind of structural representation of embodiment provided by the utility model；

Fig. 2 is the structural representation of sampler provided by the utility model；

Fig. 3 is the structural representation for another embodiment that the utility model passes through；

Corresponding component title of the numeral represented by with letter in figure：

1st, the first pipeline；101st, the first nipple joint；102nd, the first branch；103rd, the second branch；104th, the 3rd branch；2、 First valve；3rd, pressure gauge；4th, second pipe；5th, the 3rd pipeline；501st, elbow；502nd, the second nipple joint；6th, check valve；7、 Turbulence plate；8th, the second valve；9th, sampler；901st, sampling container；902nd, pipe nipple is sampled；903rd, ball valve is connected；10th, the one three Port valve；11st, the second triple valve；12nd, reducing joint；13rd, check valve fixes pipe nipple.

Embodiment

In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under Face combines and is specifically illustrating, and the utility model is expanded on further.

Embodiment 1

Referring to the drawings shown in 1, a kind of multifunctional wellhead device provided by the utility model, including the first pipe located at well head Road 1, the first pipeline 1 are arranged in well head by a variety of connected modes such as ring flange or screw thread；

First pipeline 1 is provided with the first valve 2 and pressure gauge 3, wherein, the first valve 2 is used to control in the first pipeline Conducting and disconnection, pressure gauge 3 are used to detect the pressure in the first pipeline 1；Second pipe is respectively equipped with the both sides of the first pipeline 1 4 and the 3rd pipeline 5, and the pipeline 5 of the second pipe 4 and the 3rd is connected by check valve 6.

When observation individual well goes out liquid, concrete operations are：After completion, the first valve 2 is closed, waits half a day or 1 day to see Whether the numerical value for examining pressure gauge 3 changes, when the numerical value change of pressure gauge 3, illustrate it is fuel-displaced, now, fluid can pass through first pipe Road 1 flows into second pipe 4, and fluid breaks through check valve 6 and flows into the 3rd pipeline 5 and flowed out by the opposite side of the first pipeline 1, work Personnel by observe pressure gauge 3 can know whether it is fuel-displaced, and fuel-displaced process pass through pipeline it is relatively more, it is certain to staff Time rush to beside well.After fuel-displaced, the first valve 2 is opened, you can recovered the oil.

In the application, such process, it is ensured that the fluid of outflow is the stoste in well, is done without other individual well coming oils Disturb；Meanwhile avoid the phenomenon that the pipeline being connected with the first pipeline 1 pours in down a chimney；Resource can also be effectively saved, avoids fluid stream Waste and environmental pollution caused by going out.

In the prior art, all it is to be flowed directly out by exhausting pipeline first, fluid, in this way it is possible to the residue in pipeline Fluid can be present, and when staff not at the scene when, fluid outflow, can pollute and waste；Meanwhile staff is multiple Scene is gone to be directly viewable, it is very inconvenient；Finally, it is also possible to cause what is poured in down a chimney with other pipelines that the first pipeline 1 is connected Phenomenon.

Multiple well groups carry out fuel-displaced observation when, first, first determine each individual well pressure gauge numerical value whether with other lists The numerical value of well pressure table is suitable, quite then illustrates that individual well goes out liquid and can normally open valve 2；If quite, other pressure are not less than it Table, then illustrate that the well does not go out liquid, can continue to observe, if being less than for a long time or without pressure, whether the well needs to examine and need Reprocess；If quite, higher than other individual well pressure gauges, then it is stuck, it is necessary to change not illustrate that check valve 4 is likely to occur failure.

When pressure sensor further, can also be used to replace the measurement pressure of pressure gauge 3, replaced with electronics control valve Valve 2.At this point it is possible to host computer or other communicative indication equipment are connected in remote control valve 2 and by pressure sensor, this Sample, it is possible to achieve remote reviewing pressure judges whether fuel-displaced.

In the present embodiment, oil phase ratio is directly observed with the scene of prior art, dramatically saves on human and material resources and wealth Power, the operating efficiency of oil well staff is improved, meanwhile, the application is simple in construction, and manufacturing cost is low, observes fuel-displaced effect It is good.It effectively connects pressure gauge, valve and pipeline so that and observation is fuel-displaced not to need staff's whole process to go to check, Oil extraction operation is very easy to, improves efficiency.

Embodiment 2

Referring to the drawings shown in 1, in the present embodiment, sampler 9 is connected with by the second valve 8 in the sidepiece of second pipe 4. The purpose of sampler 9 is conveniently to sample.Meanwhile in the junction of the pipeline 1 of second pipe 4 and first, it is provided with turbulence plate 7.

After fuel-displaced, it is sampled, during sampling, closes the first valve 2, wait a few minutes, now observe the numerical value of pressure gauge 3 Whether change, when pressure gauge 3 numerical stability or become big, illustrate normal fuel-displaced in well, can sample, now, opening the Two valves 8, are sampled by sampler 9.

When opening the second valve 8, due to there is the setting of turbulence plate 7, fluidised form can be made definitely to enter turbulent condition, primary sample It is oil mixing with water, the accurate of result will not be influenceed because of laminar flow conditions；Meanwhile with being sampled without emptying and three-level, it is a large amount of to save Working time, reduce labor intensity.In existing technology, it is substantially and is sampled by three-level sampling, it is troublesome in poeration, when Between it is long, oil product wastes and recovery difficult is high.

Further, sampler 9 include sampling container, sampling pipe nipple and connection ball valve, the sampling container successively with The sampling pipe nipple and connection ball valve connection, the sampling container pass through second valve 8 and the sidepiece of the second pipe 4 Connection.During sampling, the second valve 8 is opened, oil sample is flowed directly into sampling container and is sampled, and the second valve is closed after sampling, Oil sample is flowed into suitable container finally by sampling pipe nipple and connection ball valve.

In sampling process, the volume that can set sampling container is 500ML, and now, oily air content is b, the oil under normal pressure Gas content b=500ML-a, wherein, a is the actual capacity for the oil sample that measurement takes.

Further, in order to consolidate check valve 6, the check valve for being used to fix check valve 6 is provided with the bottom of check valve 6 and is fixed Pipe nipple 13.

In the present embodiment, pass through sampling process, you can realize the direct calculating of oily air content, a step realizes multiple work( Can, efficiency, convenient use person are drastically increased, and in the prior art, the method for measuring oily air content is all cumbersome, with this Application is very inconvenient compared to using, and the application method is simple, simple in construction, is easy to use.

Embodiment 3

Being understood referring to the drawings 2-3, a kind of multifunctional wellhead device that the present embodiment provides, it is split-type structural, including Located at the first pipeline 1 of well head, first pipeline 1 is provided with the first valve 2 and pressure gauge 3, the both sides of the first pipeline 1 point Not She You the pipeline 5 of second pipe 4 and the 3rd, and the pipeline 5 of the second pipe 4 and the 3rd is connected by check valve 6.In the second pipe The sidepiece of road 4 is connected with sampler 9 by the second valve 8.The purpose of sampler 9 is conveniently to sample.

Wherein, the first pipeline 1 includes the first nipple joint 101, the first branch 102, the second branch 103 and the 3rd branch 104 connections, the first nipple joint 101 and the first branch 102 are connected by the first triple valve 10, and second pipe 4 and the 1st Port valve 10 connects；

First branch 102 is connected with the one end of the second branch 103 by the first valve 2, and the other end of the second branch 103 passes through Second triple valve 11 is connected with the 3rd branch 104, and the 3rd pipeline 5 is connected by the second triple valve 11 with the first pipeline 1.

3rd pipeline 5 includes the nipple joint 502 of elbow 501 and second, wherein, elbow 501 passes through reducing joint 12 It is connected with the second nipple joint 501.

Wherein, the first nipple joint 101 and the second branch 103 are connected through a screw thread and are fixed in well head.

In the present embodiment, cleaning, dismounting and installation, employ split type connection for convenience, by the first pipeline 1 and 3rd pipeline 5 is split as multiple structures and is attached, and facilitates installation and follow-up cleaning etc., meets the needs of different users.

In the application, by setting the valve 8 of 9 and second valve of sampler 8. second and second pipe 4 in sidepiece Directly it is sidepiece connection, compared with existing be directly connected to, contact surface is few, and junction oil mass is few, avoids wasting.

Further, the sampler 9 includes sampling container 901, sampling pipe nipple 902 and connection ball valve 903, described to take For sample container 901 successively with the sampling pipe nipple 902 and being connected ball valve 903 and connecting, sampling container 901 passes through the second valve 8 and the The sidepiece connection of two pipelines 4.

Wherein, sampling container 901 can carry out realization replacement by capping structure.

When seeing whether fuel-displaced, by closing the first valve 2, observe the numerical value of pressure gauge 3, without it is fuel-displaced when, do not have in pipe There is pressure, when there is fluid, pressure can change, and the numerical value of pressure gauge 3 changes, and now, illustrate fuel-displaced.The pressure meeting of fluid The opposite side that check valve 6 enters the first pipeline 1 is broken through, and then is directly flowed out from the opposite side of the first pipeline 1.Then first is opened Valve 2, fluid are directly flowed out by the first pipeline 1.There is the setting of check valve 6 by the pipeline 5 of second pipe 4 and the 3rd, It effectively prevent fluid and flow out wasting phenomenon, economize on resources also environmental protection.

Meanwhile when observing individual well and when going out liquid, the pressure gauge numerical value between each well is observed, if pressure gauge numerical value not phase When, be less than other pressure gauges, then illustrate that the well does not go out liquid, can continue to observe, if for a long time be less than or without pressure, the well Whether need to examine needs to reprocess；If quite, higher than other individual well pressure gauges, then do not illustrate that check valve 4 is likely to occur failure card Extremely, it is necessary to change.

When sampling and judging oily air content, the first valve 2 is first shut off, waits a few minutes, during observation is fuel-displaced, pressure gauge 3 Numerical value whether stablize, if stable, illustrate fuel-displaced normal, can sample, if abnormal, to analyze reason.

When the numerical value of pressure gauge 3 is normal, start to sample, open the second valve 8, fluid enters sampler 9, is introduced into Sampling container 901, then flowed out by sampling pipe nipple 902 and connection ball valve 903.In sampling, setting sampling container 901 is 500ML, after sampling fluid flows into sampling container 901, measure the oil sample actual capacity a taken, the oily air content b=under normal pressure 500ML-a。

When multiple wells sample, the pressure value of each well and other wells can be first observed simultaneously, if some pressure value is low In other pressure gauges, then illustrate that the well does not go out liquid or well of lying；If pressure value is higher than other individual well pressure gauges, illustrate check valve 13 to be likely to occur failure stuck, it is necessary to change.

In the present embodiment, because the junction of the first pipeline 1 and second pipe 4 is provided with turbulence plate 12, fluidised form can be made exhausted To into turbulent condition, primary sample is oil mixing with water, the accurate of result will not be influenceed because of laminar flow conditions；Meanwhile with emptying Three-level sampling compare, largely save the working time, reduce labor intensity.

When need check individual well do not go out liquid or lie well when, close the first valve 2, wait 3-5 minutes after observation pressure gauge 3 count Whether value is suitable with other individual well pressure gauge numerical value, if it is normal quite to illustrate that the well goes out liquid；If quite, other pressure are not less than it Table, then illustrate that the well does not go out liquid or well of lying；If quite, higher than other individual well pressure gauges, then do not illustrate that check valve 6 is likely to occur Failure is stuck, it is necessary to change.

The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model Claimed scope is by appended claims and its equivalent thereof.

Claims (9)

1. A kind of 1. complex function wellhead assembly, it is characterised in that：Including the first pipeline located at well head（1）, first pipeline （1）It is provided with the first valve（2）And pressure gauge（3）, first pipeline（1）Both sides are respectively equipped with second pipe（4）With the 3rd Pipeline（5）, and the second pipe（4）With the 3rd pipeline（5）Pass through check valve（6）Connection.
2. A kind of 2. complex function wellhead assembly according to claim 1, it is characterised in that：The second pipe（4）Sidepiece Pass through the second valve（8）Connect sampler（9）.
3. A kind of 3. complex function wellhead assembly according to claim 2, it is characterised in that：The sampler（9) include Sampling container（901）, sampling pipe nipple（902）With connection ball valve（903）, the sampling container（901）It is short with the sampling successively Section（902）With connection ball valve（903）Connection, the sampling container（901）Pass through second valve（8）With the second pipe （4）Sidepiece connection.
4. A kind of 4. complex function wellhead assembly according to claim 2, it is characterised in that：The second pipe（4）With institute State the first pipeline（1）Junction be provided with turbulence plate（7）.
5. A kind of 5. complex function wellhead assembly according to claim 1, it is characterised in that：First pipeline（1）Including First nipple joint（101）, the first branch（102）, the second branch（103）With the 3rd branch（104）Connection, first screw thread Pipe nipple（101）With the first branch（102）Pass through the first triple valve（10）Connection, first branch（102）With described second point Branch（103）One end passes through the first valve（2）Connection, second branch（103）The other end pass through the second triple valve（11）With 3rd branch（104）Connection.
6. A kind of 6. complex function wellhead assembly according to claim 5, it is characterised in that：The second pipe（4）With Three pipelines（5）Pass through the first triple valve respectively（10）With the second triple valve（11）With first pipeline（1）Connection.
7. A kind of 7. complex function wellhead assembly according to claim 1, it is characterised in that：3rd pipeline（5）Including Including elbow（501）With the second nipple joint（502）, the elbow（501）Pass through reducing joint（12）With second screw thread Pipe nipple（502）Connection.
8. 8. according to a kind of any described complex function wellhead assemblies of claim 1-7, it is characterised in that：The check valve（6） Bottom, which is provided with, to be used to fix the check valve（6）Check valve fix pipe nipple（13）.
9. A kind of 9. complex function wellhead assembly according to claim 8, it is characterised in that：First pipeline（1）Two End, which is connected or is threadedly coupled by ring flange, to be fixed in well head.