CN221481910U - Wellhead metering device for oil extraction well - Google Patents

Abstract

The utility model relates to a wellhead metering device of an oil production well, which is used for metering the oil production of a single well and comprises a tank body with an insulating layer, an inlet pipe arranged at the upper part of the tank body and an outlet pipe arranged at the lower part of the tank body, and is characterized in that: the tank body (05) and the air pump (21) are both arranged on the mobile station (24), a tank body seat (26) is arranged at the bottom of the tank body (05), a desk type electronic scale (270) is arranged between the tank body seat (26) and the mobile station (24), a portal frame (42) is arranged above the tank body (05), and two upright posts (421) of the portal frame (42) are both fixed on the mobile station (24); the upper end of the hanging type electronic scale (271) is connected with the portal (42) through the upper pull ring (43), and the lower end of the hanging type electronic scale is connected to the flange (07) at the upper end of the tank body (05) through the lower pull ring (44). The advantages are that: the oil production of any oil well can be accurately and rapidly measured, and no pollution and zero emission are achieved.

Description

Wellhead metering device for oil extraction well

Technical Field

The utility model relates to the technical field of oil extraction and well logging, in particular to a wellhead metering device of an oil extraction well.

Background

Oil exploitation engineering is also often abbreviated as oil exploitation, each oil well is subjected to objective geological conditions and influences of equipment factors, engineering technicians control different technologies, even if single wells with the same block and the same well depth are located on the same address structural band, the oil production per day/unit shift has larger difference, the difference is several times or even more than ten times, the yield is quite common, the yield is directly related to economic benefit, the yield in unit time of each well is calculated to be quite necessary, and then the measurement can be performed due to the well, but the method is a technical problem in the oil exploitation industry. The earliest method is that a pit is dug beside an oil well, the volume of the pit is calculated, then an oil drain valve of a wellhead device is opened, the pit is filled in per unit time, and the yield is obtained. Today the average price of crude oil is over $100 per barrel, i.e., waste is neither environmentally friendly nor permissible. There are also improved methods: firstly, the anti-seepage cloth is paved in a soil pit, so that the waste and the environmental pollution are reduced as much as possible, but the pollution of crude oil (turbid liquid such as high-water-content oil and oil displacement agent) in the soil pit cannot be avoided even in an open air environment, and the recovery and the utilization are difficult. Secondly, the crude oil is filled into a soft body tank or a tank truck, and a metering station/site weighing metering is pulled out, so that the crude oil refinery has the problems that the raw materials are unqualified, the processing and the processing are not cost-effective, the concentrated collection and the reutilization are defect, and the pollution to the environment is reduced. If the oil pipeline network is drawn back through the pipeline, the oil recovery system is an optimal scheme, but no industry standard and specification exists, and professional equipment exists, and under the condition that the safety is lack of guarantee, each oil extraction plant/mine does not want to treat the crude oil at risk of accidents.

In order to solve the technical problem, the applicant proposes a technical scheme of using a metering device for an oil production well wellhead, namely, in the oil production well wellhead which is allowed to be discharged in industry standard and standard, the oil is weighed by the metering and weighing process, the metering and the weighing process is directly carried out by reinjection into an oil delivery pipe network connected with an oil well through an oil discharge valve of the wellhead, and the metering and reinjection is carried out near the wellhead, so that the process is not inconsistent with the existing industry standard and standard.

Disclosure of utility model

The utility model aims at: the utility model provides a wellhead metering device of an oil extraction well, which aims to realize the purposes, and provides the following technical scheme: including the jar body 5 that has heat preservation 4, install the entry pipe 03 in jar body 5 upper portion, the outlet pipe 19 of lower part, characterized by: the tank body 05 and the air pump 21 are both arranged on the mobile platform 24, a tank body seat 26 is arranged at the bottom of the tank body 05, a desk type electronic scale 270 is arranged between the tank body seat 26 and the mobile platform 24, a portal 42 is arranged above the tank body 05, and two upright posts 421 of the portal 42 are both fixed on the mobile platform 24; the upper end of the hanging electronic scale 271 is connected with the portal 42 through the upper pull ring 43, and the lower end is connected with the flange 07 at the upper end of the tank body 05 through the lower pull ring 44.

The method is characterized in that: a manhole 06 is arranged at the upper part of the tank body 05, a flange 07 is connected on the manhole 06, and a liquid level meter 08 is arranged on the flange 07; a drain-back vertical pipe 16 is arranged on the inlet pipe 03 at the lower part of the outer side of the tank body 05, and a drain-back valve 13, a loop pipe 14, a pressure gauge 15, an upper switching valve 17, a compressed air hose 20 and a lower switching valve 18 are sequentially arranged on the drain-back vertical pipe 16; a relief valve pipe 09, a relief valve 10, a drain-back horizontal pipe 12 and an evacuation pipe 11 are also installed on the upper portion of the tank body 05, a return pipe 14 is connected between the relief valve pipe 09 and the drain-back vertical pipe 16, and a bottom drain pipe 28 is installed on the bottom of the tank body 05.

The method is characterized in that: the hydraulic oil cylinders 29 are arranged in the oil cylinder 22 with the bottom fixedly connected with the movable table 24, and the hydraulic oil cylinders 29 are uniformly distributed on the outer side of the lower part of the tank body 05.

The method is characterized in that: the jacking body 3 comprises a hydraulic rod 30, a jacking head 31 arranged at the top end of the hydraulic rod 30, a jacking cap 32 covered on the jacking head 31, and a jacking cap connecting piece 321 for connecting the jacking cap 32 with the tank body 05.

The method is characterized in that: the jacking head 31 includes an elliptical head 31a, a circular head 31b, and a conical head 31c, and the jacking cap 32 corresponding to the jacking head 31 includes an elliptical cap 32a, a circular head cap 32b, and a conical cap 32c.

Compared with the prior art, the utility model has the beneficial effects that the oil yield of any oil well can be accurately and rapidly measured, and no pollution and zero emission are realized.

Drawings

FIG. 1 is a partial cross-sectional view of a schematic of the present utility model;

FIG. 2 is a fragmentary view of the cross-section taken along the A-A plane in FIG. 1;

Fig. 3 is a partial cross-sectional view of the hydraulic cylinder 29 in cooperation with the jack 3;

fig. 4 is an enlarged sectional view of the solution a of the jack body 3;

Fig. 5 is an enlarged sectional view of a solution b of the jack body 3;

Fig. 6 is an enlarged partial sectional view of a c-scheme of the jack body 3;

FIG. 7 is an enlarged partial cross-sectional view of FIG. 3;

FIG. 8 is a schematic diagram of the dynamic fit principle of FIG. 7;

Fig. 9 is a front view of the lift cap 32;

FIG. 10 is a cross-sectional view taken along the plane B-B of FIG. 9;

fig. 11 shows a schematic diagram of the position of the hydraulic cylinder 29 fitted with the jacking head 3 in the cylinder;

FIG. 12 is a schematic view of the hydraulic lever 30 of FIG. 7;

FIG. 13 is a top view of FIG. 12;

Fig. 14 is an enlarged view of the quick connector 1;

FIG. 15 is a schematic view of a table electronic scale;

FIG. 16 is a schematic view of a hanging electronic scale;

Fig. 17 is a schematic diagram of yet another embodiment employing a gantry 42 in conjunction with a hanging electronic scale 271.

In the figure: 01. the hydraulic pressure system comprises a quick connector, 02, an inlet valve, 03, an inlet pipe, 04, a heat insulating layer, 05, a tank body, 06, a manhole, 07, a flange, 08, a liquid level meter, 09, a safety valve pipe, 10, a safety valve, 11, an emptying valve, 12, a return row transverse pipe, 13, a return row valve, 14, a return row pipe, 15, a pressure gauge, 16, a return row vertical pipe, 17, an upper switching valve, 18, a lower switching valve, 19, an outlet valve, 20, a compression air hose, 21, an air pump, 22, an oil cylinder, 221, a reinforcing plate, 23, an air pump seat, 24, a movable table, 25, wheels, 26, a tank body seat, 27, an electronic scale, 270, a desk electronic scale, 271, a hanging electronic scale, 28, a bottom pipe, 29, a hydraulic cylinder, 3, a jacking body, 30, a hydraulic rod, 31, a jacking head, 31a, an oval jacking head, 31b, a round jacking head, 32, a round jacking cap, 32b jacking cap, 32c, a conical cap, 321, 421, a lifting head, a lifting cable, 45, a lifting power supply, a lifting cable, 43, a lifting cable, a lifting port, a power supply, a 45, a lifting port, a power supply, a 43, a 45.

Description of the above part numbers and parts: the serial numbers of the parts are not continuously ordered starting with natural numbers; in the drawings, the numbers of 01, 02, 22, 221, 25, 29, 30, 31, 32, 321 and the like represent the same parts, and the like, and have two or four parts, and are symmetrical left and right/front and back positions due to the fact that functions are identical, positions are different, and numbers on the left and front sides or the right and back sides are only given for clarity of description, and other positions are omitted; the numbers 30-32 are a part of 3 and the like, and the numbers 32a, 31a,32b, 31b, and 32c, 31c represent three embodiments from a, b, and c, respectively; there are also some prior art or shaped products, and there are no more than those described herein, such as the quick connector 01 shown in fig. 14, the hydraulic cylinder 29 shown in fig. 11, and the like, and products represented by serial numbers 05, 07, 08, 10, 15, 21, 27, and the like, which are all found in the existing product manuals, and the type numbers selected according to the needs, and there are also some common pipe valve members, such as serial numbers 06, 09, 12, 13, 14, 16, 17, 18, 19, 20, and 22, 221, 23, 24, 25, 26, 321, 42, 43, 44, 421, 45, and the like, and the pipe valve members and the parts represented by these are all common products, and only those mentioned in the examples are briefly described.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments in this disclosure, are to be understood as falling within the scope of the present utility model.

In the present specification, there is a concept of "crude oil" to be interpreted, and is generally understood as crude oil coming out of a production well. However, in the old oil fields (such as Daqing oil fields) in China, primary water injection oil displacement and secondary water injection (polymer solvent is also called an oil displacement agent) are generally adopted to improve petroleum yield, under the background, the water content of crude oil is very high, the water content is higher than the duty ratio of petroleum, the oil sample discharged from an oil production well is visible to the naked eye, and turbid liquid such as high-water-content oil, oil displacement agent and the like is more closely related to the produced liquid entering an oil transportation pipe network from the oil production well. In addition, in the field of oil recovery, oil recovery wells are also often referred to as "pumping wells", "oil wells", "wells", and the like.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In the examples shown and discussed herein, any particular values should be construed as merely illustrative and not a limitation. Thus, other examples of exemplary embodiments may have different values, and in the present utility model, only the principle is provided, and no specific values referred to in the embodiments are provided.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to the inner and outer relative to the outline of each component itself, as described in the example of fig. 1, and the like.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Such as those described with respect to the tank 5, the mobile station 24, the reference object, etc.

In example 1, as shown in fig. 1 and 2: the tank 05 and the air pump 21 are both arranged on a mobile platform 24, in practice, the mobile platform selects a 5-ton van, the side and rear doors are opened, all equipment and spare parts are loaded into a carriage, and the van is driven to enter a well site near a pumping well for nearby operation. The oil well head is connected with a pressure-resistant hose with electric tracing and is in butt joint with a wellhead valve, meanwhile, pressure release valves of four hydraulic cylinders 29 are opened, hydraulic rods 30 of the four hydraulic cylinders 29 fall back, a jacking head 31 is separated from a jacking cap 32, a table electronic scale 270 bears the total weight of a tank body 05, after reading of the electronic scale 270 is cleared, the oil well valve and the inlet valve 02 are sequentially opened, at the moment, the oil well head has the pressure of 0.5MPa higher than the internal pressure of the tank body 05, crude oil of the oil well is injected into the tank body 05, timing is started, reading of a liquid level instrument 08 is observed, after the reading reaches a preset position, the timing is finished, the corresponding two valves are closed, the output in unit time is obtained, then the pressure-resistant hose connected with the inlet pipe 03 is detached and is then connected to a quick connector of an outlet pipe 19, and switching of connecting pipes is completed. Then firstly, the air pump 21 is opened, the switching valve 17 and the emptying valve 11 are opened, when the pressure of the pressure gauge 15 is larger than the pressure of an oil well, the valve and the wellhead valve on the outlet pipe 19 are sequentially opened, at the moment, the reading of the table electronic scale 270 is gradually reduced, finally, the air pump 21 and the corresponding valve are reset to zero, the back-discharging valve 13 is opened to discharge residual pressure of the tank body 05, the emptying valve 11 and the back-discharging valve 13 are closed, meanwhile, the pressurizing valves of the four hydraulic cylinders 29 are opened, the four hydraulic rods 30 are simultaneously lifted, the jacking head 31 is lifted to lift the cap 32, the tank body 05 is separated from the table electronic scale 270, the purpose of protecting the accuracy of the electronic scale is achieved, and the pressure-resistant hose is detached for standby.

In the embodiment 2, as shown in fig. 15, a portal 42 is additionally installed in the van, two upright posts are fixed on the carriage bottom plate, a lower pull ring 44 is welded to a flange 07 on the tank body 5, an upper pull ring 43 is welded below the portal 42, a hanging electronic scale 271 is installed between the two pull rings, other parts and working processes of the two embodiments are identical, a heat conduction oil box 45 is added to the bottom of the tank body 5, and the weight of the tank body 5 is still borne by four hydraulic cylinders 29.

In addition, the residual oil/gas in the tank 5 is subjected to a washing and filling treatment or a safety treatment, and is determined according to the situation.

The jacking body 3 comprises a hydraulic rod 30, a jacking head 31 arranged at the top end of the hydraulic rod 30, a jacking cap 32 covered on the jacking head 31, and a jacking cap connecting piece 321 for connecting the jacking cap 32 with the tank body 05. The jacking body 3 has three schemes of a, b and c, namely: the jacking cap 32 corresponding to the jacking head 31 includes an elliptical cap 32a, a circular cap 32b, and a conical cap 32c, and the conical head 31c is preferably matched with the conical cap 32 c.

A manhole 06 is arranged at the upper part of the tank body 05, a flange 07 is connected on the manhole 06, and a liquid level meter 08 is arranged on the flange 07; a drain-back vertical pipe 16 is arranged on the inlet pipe 03 at the lower part of the outer side of the tank body 05, and a drain-back valve 13, a loop pipe 14, a pressure gauge 15, an upper switching valve 17, a compression air pipe 20 and a lower switching valve 18 are sequentially arranged on the drain-back vertical pipe 16; a relief valve pipe 09, a relief valve 10, a drain-back horizontal pipe 12 and an evacuation pipe 11 are also installed on the upper portion of the tank body 05, a return pipe 14 is connected between the relief valve pipe 09 and the drain-back vertical pipe 16, and a bottom drain pipe 28 is installed on the bottom of the tank body 05. The hydraulic cylinders 29 are arranged in the oil cylinder 22 with the bottom fixedly connected with the movable platform 24, the hydraulic cylinders 29 are uniformly distributed on the outer side of the lower part of the tank body 05, the hydraulic cylinders 29 can support the tank body 05 and keep a certain degree of freedom, and the hydraulic cylinders are not rigidly connected by adopting fixation (such as welding) and are also considered to be installed on a moving vehicle. The above structure, connection, assembly are all indispensable for achieving the object of the present utility model.

Some prior art techniques will not be described here too much, except for the new ones to which the utility model relates. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an oil recovery well head metering device, includes the jar body (05) that has heat preservation (4), installs inlet tube (03) on jar body (05) upper portion, exit tube (19) of lower part, characterized by: the tank body (05) and the air pump (21) are both arranged on the mobile station (24), a tank body seat (26) is arranged at the bottom of the tank body (05), a desk type electronic scale (270) is arranged between the tank body seat (26) and the mobile station (24), a portal frame (42) is arranged above the tank body (05), and two upright posts (421) of the portal frame (42) are both fixed on the mobile station (24); the upper end of the hanging type electronic scale (271) is connected with the portal (42) through the upper pull ring (43), and the lower end of the hanging type electronic scale is connected to the flange (07) at the upper end of the tank body (05) through the lower pull ring (44).

2. The wellhead metering device for oil recovery according to claim 1, characterized in that: a manhole (06) is arranged at the upper part of the tank body (05), a flange (07) is connected on the manhole (06), and a liquid level meter (08) is arranged on the flange (07); an inlet pipe (03) is arranged at the lower part of the outer side of the tank body (05), a back-drainage vertical pipe (16) is arranged, and a back-drainage valve (13), a loop pipe (14), a pressure gauge (15), an upper switching valve (17), a compressed air hose (20) and a lower switching valve (18) are sequentially arranged on the back-drainage vertical pipe (16); the upper part of the tank body (05) is also provided with a safety valve pipe (09), a safety valve (10), a return discharge transverse pipe (12) and an evacuation pipe (11), the loop pipe (14) is connected between the safety valve pipe (09) and the return discharge vertical pipe (16), and the bottom of the tank body (05) is provided with a bottom discharge pipe (28).

3. The wellhead metering device for oil recovery according to claim 1, characterized in that: the hydraulic oil cylinders (29) are arranged in the oil cylinder barrel (22) with the bottom fixedly connected with the movable table (24), and the hydraulic oil cylinders (29) are uniformly distributed on the outer side of the lower part of the tank body (05).

4. The wellhead metering device for oil recovery according to claim 1, characterized in that: the jacking body (3) comprises a hydraulic rod (30), a jacking head (31) arranged at the top end of the hydraulic rod (30), a jacking cap (32) covered and buckled on the jacking head (31), and a jacking cap connecting piece (321) for connecting the jacking cap (32) and the tank body (05).

5. The wellhead metering device for oil recovery according to claim 4, wherein: the jacking head (31) comprises an elliptical head (31 a), a round head (31 b) and a conical head (31 c), and the jacking cap (32) corresponding to the jacking head (31) comprises an elliptical cap (32 a), a round head cap (32 b) and a conical cap (32 c).