CN201106450Y

CN201106450Y - Device for sampling anti-theft oil

Info

Publication number: CN201106450Y
Application number: CNU200720181741XU
Authority: CN
Inventors: 王志国; 王洪绪; 任立军; 刘利; 曲昆; 王尧; 魏代海
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-22
Filing date: 2007-10-22
Publication date: 2008-08-27
Anticipated expiration: 2017-10-22

Abstract

The utility model relates to a theftproof oil sampling device used in the oilfield crude oil production process, which is composed of a sampling valve and a sampling device. The sampling valve is composed of a shell, a spring seat, a spring, a valve ball, a valve seat, guide seats, a fluid diversion mandril and an eccentric screwed plug. The sampling device is composed of a key, a valve with a switch, a rubber gasket and an oil guide passage. A circle of guide seats is processed at the inner wall of the shell of the sampling valve. The outer side of the guide seats at the inner wall of the sampling valve is provided with threads having a identical screw pitch with the eccentric screwed plug, the eccentric screwed plug can be screwed in, the fluid diversion plug bar, the valve seat, the valve ball, the spring and the spring seat can be arranged inside of the shell in sequence to be combined into the sampling valve. The theftproof oil sampling device has the advantages of low cost, simple manufacture, convenient operation and safety, and can efficiently prevent the crude oil from being stolen.

Description

The guard against theft oil sampler

Technical field

The utility model relates to the device that recovers the oil and take a sample in a kind of oil field, the guard against theft oil sampler of using in especially a kind of oil well production crude oil process.

Background technology

It is constant to the crude oil sampling in the oil well that want in producing the crude oil process in the oil field, by the oil field laboratory personnel sample that extracts is analyzed, so that understand the various physical and chemical index of oil well crude oil, therefore on the production tree production flow line of oil well, sample cock all is installed, take the oil sample of oil well in the oilfield process by sample cock, but the oil sample sample cock that often uses does not have anti-theft measure now, put crude oil to such an extent as to often there is the people of theft crude oil to steal, make national energy and field facility suffer economic loss by sample cock.

The utility model content

It is the guard against theft oil sampler of using in a kind of oil well production crude oil process that the utility model purpose is to provide, make and steal the supporting sampler that the people of putting crude oil does not use special use, can't open sampler and steal crude oil, guarantee that oil well prevents effectively that in process of production crude oil is stolen, reduce economic loss.

The purpose of this utility model is achieved through the following technical solutions: this device is made up of the two large divisions, that is: sample valve and sampler, sample valve is made up of shell, spring base, spring, valve ball, valve seat, guide holder, water conservancy diversion push rod, eccentric plug; Sampler is made up of key, the valve that has switch, rubber cushion, Oil Guide passage, at sample valve outer casing inner wall processing one circle projection, it is guide holder, the outside of the guide holder of sample valve inwall has and the identical screw thread of eccentric plug pitch, eccentric plug can be screwed in, the enclosure of successively water conservancy diversion push rod, valve seat, valve ball, spring, spring base being packed into is combined into sample valve.

The beneficial effects of the utility model are: the sample valve plug is ensconced in the sample valve display pipe, and stolen people can't see plug, more can't destroy eccentric plug with instrument, and plug can only use special-purpose assorted key to open; The special-purpose assorted key of each operation teams and groups of oil field adopts the irregularly shaped making of different pitch-rows, can guarantee that like this each operation teams and groups of oil field are only to open the well head that own teams and groups are managed; Private key and sampling instrument are designed to one, are easy to carry and use safely.Therefore use the utility model with low cost, make simple, easy to operate, safety, and can prevent effectively that crude oil is stolen.

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Description of drawings

Fig. 1 is the utility model sample valve structural representation.

Fig. 2 is the utility model sampler structure schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing the utility model embodiment is described.

Among Fig. 1: the 1st, shell, the 2nd, spring base, the 3rd, spring, the 4th, valve ball, the 5th, valve seat, the 6th, guide holder, the 7th, water conservancy diversion push rod, the 8th, eccentric plug.At sample valve outer casing inner wall processing one circle projection, promptly guide holder 6, and guide holder 6 effects can be installed in valve seat 5, valve ball 4, spring 3 in the sample valve shell, also can set upright and fixing water conservancy diversion push rod 7.The outside of the guide holder 6 of sample valve inwall has and the identical screw thread of eccentric plug 8 pitch, eccentric plug can be screwed in.During the sample valve assembling, successively with water conservancy diversion push rod 7, valve seat 5, valve ball 4, spring 3, spring base 2 shell 1 inside of packing into, so just assemble the sample valve that finishes, at last sample valve is replaced former wellhead sampling valve, sample valve is installed in the production tree tubing head, when not extracting oil sample usually, under the pressure active force in well, the spring of spring base heads on valve ball and blocks passage on the valve seat, be positioned at water conservancy diversion push rod between guide holder and block the passage of guide holder, eccentric plug is sealed the water conservancy diversion push rod, and two passages in the middle of the sample valve are blocked by valve ball and water conservancy diversion push rod like this, and crude oil can't be flowed out.When extracting oil sample, utilize supporting sampler key to open eccentric plug, then a sidespin of sampler is gone in the antitheft valve body, push the water conservancy diversion push rod, make the water conservancy diversion push rod back down the valve ball that is supporting with spring, valve ball separates with valve seat, crude oil is along the slit of valve ball and valve seat, flow through the Oil Guide passage on the water conservancy diversion push rod, open valve switch and make crude oil excessive, reach the crude oil sampling purpose.

Among Fig. 1: eccentric plug 8 adopts unconventional standard thread to screw in sample valve, plug cylinder 16 and cylinder 17 are respectively two grooves 14 and the pairing cylinder of groove 15 surface configurations with key 9, cylinder length is consistent with depth of groove, and its effect is to be anti theft design.

Among Fig. 2: the 9th, key, the 10th, valve, the 11st, valve switch, the 12nd, rubber cushion, the 13rd, Oil Guide passage.Key shape is "T"-shaped, wherein an end is a cylinder, have a surface and be circular groove 15, there is a surface to be irregular cycle in this groove 15, the center is the groove 14 of disalignment, these irregularly shaped groove 14 surface areas are less than circular groove 15 surface areas, and each groove has certain degree of depth; The other two ends of key hollow is communicated with, and wherein the rubber cushion of an end seals when connecting sample valve in order to sampler, opens the switch 11 of valve 10, and crude oil flows out from Oil Guide passage 13, reaches the purpose of extracting oil sample.

Claims

1. guard against theft oil sampler, form by sample valve and sampler two large divisions, it is characterized in that: sample valve is by shell (1), spring base (2), spring (3), valve ball (4), valve seat (5), guide holder (6), water conservancy diversion push rod (7), eccentric plug (8) is formed, sampler is by key (9), the valve (10) that has switch (11), rubber cushion (12), Oil Guide passage (13) is formed, sample valve shell (1) inwall processing one circle projection, be guide holder (6), the outside of the guide holder of sample valve inwall (6) has and the identical screw thread of eccentric plug (8) pitch, eccentric plug (8) can be screwed in, during the sample valve assembling, successively with water conservancy diversion push rod (7), valve seat (5), valve ball (4), spring (3), spring base (2) shell (1) inside of packing into.

2. according to the described guard against theft oil sampler of claim 1, it is characterized in that: key (9) is shaped as "T"-shaped, wherein an end is a cylinder, have a surface and be circular groove (15), have a surface to be irregular cycle in this groove (15), the center is the groove (14) of disalignment, and groove (14) surface area is less than circular groove (15) surface area, each groove has certain degree of depth, and key (9) two ends hollow in addition is communicated with.

3. according to the described guard against theft oil sampler of claim 1, it is characterized in that: the cylinder (16) of eccentric plug (8) and cylinder (17) be respectively with two grooves (14) of key (9) and groove (15) surface configuration corresponding, the corresponding to cylinder of length and depth of groove.