CN2526817Y

CN2526817Y - Freeze-proof anti-theft pressure-taking sampler

Info

Publication number: CN2526817Y
Application number: CN 01251267
Authority: CN
Inventors: 佟立辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-10-31
Filing date: 2001-10-31
Publication date: 2002-12-18
Anticipated expiration: 2011-10-31

Abstract

The utility model provides an antifreeze anti-theft pressure taping sampling device which relates to a pressure taping and sampling device at an oil field wellhead. The device consists of an anti-theft antifreeze valve (1) and a pressure taping and sampling valve (2). The anti-theft antifreeze valve comprises an end cover (1-1), a valve body (1-2), a valve core (1-3) and a helix compression spring (1-4). An outlet (1-5) is arranged at the right end of the valve body. The valve core forms a sealed contact with a left port (1-6) of the valve body. The end cover is connected with the left end of the valve body. The helix compression spring (1-4) is arranged between the end cover and the valve core. An inlet hole (1-7) is opened at the left end of the end cover (1-1). The outer circumferences of the end cover (1-1) and the valve body (1-2) form an outer conical plane (1-8) which is small in the left and big in the right. The outer conical plane (1-8) forms a close fit with a wellhead nozzle (3). A valve stem (2-1) which pushes the valve core towards the left side is arranged inside the pressure tapping and sampling valve (2). The device overcomes the deficiencies of wellhead pressure tapping and sampling devices which can get stolen, frozen or plugged easily and has the advantages of no environmental pollution and time-saving, etc.

Description

Freezing-proof theft-proof pressure sampler

Technical field: the utility model relates to a kind of device in oil field shaft mouth pressure sampling usefulness.

Background technology: at present oil well will be enrolled wellhead pressure and gather oil sample and chemically examine every day.The tensimeter that is installed in well head is usually stolen, so promptly caused economic loss, influence operate as normal again, in addition in the winter of cold, stifled phenomenon can appear freezing in pipeline and valve, can only toast with fire, just can take a sample and pressure after it is thawed, so promptly pollute wellhead equipment, lose time again, also cause hidden danger simultaneously, but also increased working strength of workers.

Summary of the invention: the utility model designs a kind of freezing-proof theft-proof pressure sampler, and the sampling pressure obtaning device that it has solved well head is prone to stolen and freezes stifled problem.The utility model is made up of antitheft frost valve 1 and pressure sample valve 2.Antitheft frost valve 1 includes end cap 1-1, valve body 1-2, spool 1-3, spiral compression spring 1-4, the right-hand member of valve body 1-2 is provided with out head piece 1-5, spool 1-3 forms sealing with the left port 1-6 of valve body 1-2 and contacts, end cap 1-1 is connected with the left end of valve body 1-2, between end cap 1-1 and spool 1-3, be provided with spiral compression spring 1-4, left end at end cap 1-1 has flow-in hole 1-7, the excircle of end cap 1-1 and valve body 1-2 forms outer conical surface 1-8 left small and right large, the mouth of pipe 3 of outer conical surface 1-8 and oil well mouth forms and closely cooperates, and is provided with one and promotes the valve rod 2-1 that spool 1-3 moves to left in pressure sample valve 2.During work, freezing-proof theft-proof valve 1 can be embedded in the mouth of pipe 3 of the oil pipe four-way of well head or four-way junction of casing, outer conical surface 1-8 be formed with the mouth of pipe 3 closely cooperate, under the effect of spiral compression spring 1-4, spool 1-3 closes valve body 1-2 at this moment.When the need pressure is taken a sample, pressure sample valve 2 is connected on the flow-out hole 1-5, promoting spool 1-3 by valve rod 2-1 is moved to the left, and spiral compression spring 1-4 compressed, this moment, the left port 1-6 of valve body 1-2 opened, liquid in the well head is by flow-in hole 1-7 and go out head piece 1-5 outflow, and can carry out pressure sampling work this moment.After the pressure sampling is finished pressure sample valve 2 is unloaded down.Because antitheft frost valve 1 can be installed in the very near position of the main oily main line of distance, is subjected to the influence of oil temperature, therefore is not prone in the winter time and freezes stifled phenomenon, therefore have free from environmental pollutionly, save time, reduce working strength of workers, stopped the advantage of hidden danger.Because sampling pressure measuring valve 2 is to be carried by operating personnel, be connected with antitheft frost valve 1 during use, can unload after using up, and antitheft anti-winter valve 1 is in the mouth of pipe 3 that embeds on the well head, no specific purpose tool can't unload, so this device has been avoided the generation of stolen phenomenon.

Fig. 1 is a structural representation of the present utility model.

Embodiment: present embodiment is made up of antitheft frost valve 1 and pressure sample valve 2.Antitheft frost valve 1 is made up of end cap 1-1, valve body 1-2, spool 1-3, spiral compression spring 1-4 and O-ring seal 1-9.The right-hand member of valve body 1-2 is provided with out head piece 1-5, goes out in the head piece 1-5 to be provided with internal thread.Spool 1-3 is located in the left port 1-6 of valve body 1-2, is provided with O-ring seal 1-9 on spool 1-3, and spool 1-3 forms sealing by O-ring seal 1-9 with the left port 1-6 of valve body 1-2 and contacts, and the right-hand member of spool 1-3 is provided with a valve rod 1-10.The internal thread of end cap 1-1 forms with the external thread of valve body 1-2 left end and is threaded.Between end cap 1-1 and spool 1-3, be provided with spiral compression spring 1-4, have flow-in hole 1-7 at the left end of end cap 1-1.The excircle of end cap 1-1 and valve body 1-2 forms outer conical surface 1-8 left small and right large, and a mouth of pipe 3 of outer conical surface 1-8 and oil well mouth forms and closely cooperates.Pressure sample valve 2 comprises four-way valve body 2-2, valve rod 2-1, tensimeter 2-3, sampling valve rod 2-4, and the left end of four-way valve body 2-2 is provided with the external thread 2-17 that matches with the internal thread that goes out head piece 1-5.Spigot nut 2-5 is threaded in the right output port of four-way valve body 2-2, the middle part of valve rod 2-1 forms with spigot nut 2-5 and is threaded, the conical head 2-6 of valve rod 2-1 left end withstands in the bellmouth 1-11 of spool 1-3 right-hand member valve rod 1-10, right-hand member at valve rod 2-1 is equipped with handwheel 2-7, tensimeter 2-3 is installed in the upper port of four-way valve body 2-2, and sampling valve rod 2-4 is installed in the lower port of four-way valve body 2-2.Rotate handwheel 2-7 during work, but valve rod 2-1 move left and right then and promote spool 1-3 and open, liquid stream in the well head is entered into takes a sample in the four-way valve body 2-2 and pressure measurement work.The pipe inside, lower end of four-way valve body 2-2 is provided with valve chamber 2-8, valve chamber 2-8 top is provided with the valve port 2-9 that communicates with four-way valve body 2-2 center, sealing shroud 2-10 has been threaded below valve chamber 2-8, the middle part of sampling valve rod 2-4 is threaded with sealing shroud 2-10, the conehead 2-11 on sampling valve rod 2-4 top matches with valve port 2-9, has thief hole 2-12 on the sidewall of valve chamber 2-8.Between sealing shroud 2-10 and sampling valve rod 2-4, be provided with O-ring seal 2-13.Pressure cap 2-14 and gland 2-15 are installed below O-ring seal 2-13.Lower end at sampling valve rod 2-4 is equipped with handwheel 2-16.Rotate handwheel 2-7 after pressure is finished spool 2-3 is closed, rotate handwheel 2-16, the valve rod 2-4 that then takes a sample moves down, and valve port 2-9 is opened, and liquid enters in the valve chamber 2-8 in the four-way valve body 2-2, flows out by thief hole 2-12, finishes sampling work.

Claims

1, freezing-proof theft-proof pressure sampler, it is made up of antitheft frost valve (1) and pressure sample valve (2); It is characterized in that antitheft frost valve (1) includes end cap (1-1), valve body (1-2), spool (1-3), spiral compression spring (1-4), the right-hand member of valve body (1-2) is provided with out head piece (1-5), spool (1-3) forms sealing with the left port (1-6) of valve body (1-2) and contacts, end cap (1-1) is connected with the left end of valve body (1-2), between end cap (1-1) and spool (1-3), be provided with spiral compression spring (1-4), left end at end cap (1-1) has flow-in hole (1-7), the excircle of end cap (1-1) and valve body (1-2) forms outer conical surface left small and right large (1-8), outer conical surface (1-8) closely cooperates with the mouth of pipe (3) formation of oil well mouth, is provided with one and promotes the valve rod (2-1) that spool (1-3) moves to left in pressure sample valve (2).

2, freezing-proof theft-proof pressure sampler according to claim 1, it is characterized in that pressure sample valve (2) comprises four-way valve body (2-2), valve rod (2-1), tensimeter (2-3), sampling valve rod (2-4), the left end of four-way valve body (2-2) is provided with the external thread (2-17) that matches with the internal thread that goes out head piece (1-5); Spigot nut (2-5) is threaded in the right output port of four-way valve body (2-2), the middle part of valve rod (2-1) forms with spigot nut (2-5) and is threaded, and the conical head (2-6) of valve rod (2-1) left end withstands in the bellmouth (1-11) of spool (1-3) right-hand member valve rod (1-10).

3, freezing-proof theft-proof pressure sampler according to claim 1 is characterized in that being provided with O-ring seal (1-9) on spool (1-3), spool (1-3) forms sealing by O-ring seal (1-9) with the left port (1-6) of valve body (1-2) and contacts.

4, freezing-proof theft-proof pressure sampler according to claim 2 is characterized in that tensimeter (2-3) is installed in the upper port of four-way valve body (2-2).

5, freezing-proof theft-proof pressure sampler according to claim 2, the pipe inside, lower end that it is characterized in that four-way valve body (2-2) is provided with valve chamber (2-8), valve chamber (2-8) top is provided with the valve port (2-9) that communicates with four-way valve body (2-2) center, sealing shroud (2-10) has been threaded in the below of valve chamber (2-8), the middle part of sampling valve rod (2-4) is threaded with sealing shroud (2-10), the conehead (2-11) on sampling valve rod (2-4) top matches with valve port (2-9), has thief hole (2-12) on the sidewall of valve chamber (2-8).

6, freezing-proof theft-proof pressure sampler according to claim 5 is characterized in that being provided with O-ring seal (2-13) between sealing shroud (2-10) and sampling valve rod (2-4); Pressure cap (2-14) and gland (2-15) are installed in the below of O-ring seal (2-13).

7, freezing-proof theft-proof pressure sampler according to claim 2 is characterized in that at the right-hand member of valve rod (2-1) handwheel (2-7) being installed.

8, freezing-proof theft-proof pressure sampler according to claim 5 is characterized in that in the lower end of sampling valve rod (2-4) handwheel (2-16) being installed.