CN103195419A - Bypass tertiary oil recovery online sampling device - Google Patents
Bypass tertiary oil recovery online sampling device Download PDFInfo
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- CN103195419A CN103195419A CN 201310095844 CN201310095844A CN103195419A CN 103195419 A CN103195419 A CN 103195419A CN 201310095844 CN201310095844 CN 201310095844 CN 201310095844 A CN201310095844 A CN 201310095844A CN 103195419 A CN103195419 A CN 103195419A
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Abstract
A bypass tertiary oil recovery online sampling device comprises a connector I, a worm gear ball valve I, a pressure relief valve, a pressure relief cavity, an emptying valve, a connector II, a sampling valve, a worm gear ball valve II, a connector III and an elbow. The bypass tertiary oil recovery online sampling device is characterized in that interception and sampling of a solution are achieved by controlling opening and closing of valves and is a double-connector direct-connection parallel-pipeline novel online anti-theft spraying-preventing sampling device developed and produced for oil field tertiary oil recovery process. By adopting a low-shearing ball valve, the diameter of an inlet/outlet of polymers is increased, sampling viscosity retention rate is high, and the accuracy of sampling and testing data is guaranteed. The elbow is connected with a right angular pipeline, fluid resistance is small, and solution shear rate is low. A worm gear is used for driving a polymer injection high-pressure ball valve, opening and closing are fast, pressure relief combination design is adopted, high-pressure solution spraying is prevented, main components are welded, the device is prevented from being stolen effectively, the components are made of stainless steel, and chemical degradation is not generated. Safe and economic production of oil recovery is achieved.
Description
Technical field
The present invention relates to oil recovery technique field, oil field, relate to a kind of oil recovery sampler, specially refer to the online sampler of a kind of bypass type tertiary oil recovery.
Background technology
Along with the continuous increase of the world to the oil demand amount, oil is as limited non-renewable energy, the opportunity of finding big oil storage oil field again reduces, developed field is aging, virgin field mostly is difficulties such as viscous crude, super viscous crude and adopts reserves, and this just forces industry notice to be invested the technology that improves the old filed recovery ratio.Tertiary oil recovery technology is the important oil exploitation technology that can utilize new technologies such as physics, chemistry and biology to improve oil recovery factor.Divide from stage and the technological means of recovering the oil, oil exploitation is divided into three phases.Be primary oil recovery, secondary oil recovery, tertiary oil recovery.Tertiary oil recovery technology has good prospect, and after recovering the oil through first and second in the oil field, recovery ratio generally can reach more than 50%, underground also have a large amount of remaining crude oil also not exploit, tertiary oil recovery has appearred in the progress along with science and technology, to improve the recovery ratio of crude oil.Tertiary oil recovery is exactly according to oil and water mobility ratio different in the rock stratum, injection of polymer (a kind of polymer chemistry synthetics) in the oil reservoir.Polymer viscosity is very big, can stop up big duct, stops formation water to flow to oil well, and can drive, carries crude stream to the shaft bottom, with the raising oil recovery factor.General through after the tertiary oil recovery, recovery ratio can improve greatly, generally can reach more than 70%.Effect according to tertiary oil recovery is seen, the economic benefit highly significant is a kind of mature technology means to improving oil recovery factor.In the tertiary oil recovery process, oil well sampling carry out the crude oil water containing assay be the daily production management of oil well and underground dynamic analysis the important process that must carry out.At present, the oil well sampler that adopts is made up of short circuit, sampling gate and mozzle usually, namely before the sampling gate short circuit is set.Though this kind sampler structure is simple, has a lot of drawbacks.Mainly show: the first, the guard against theft oil poor performance, the lawless person often opens the sluices from the oil well sampler and carries out stolen; The second, before each sampling, must bleed off the dead oil that remains in the short circuit, to guarantee the true and accurate of admission data, so neither handled easily can cause environment pollution again, if in the winter time because temperature is lower, it is stifled and put that mountain oil is next also easily to form ice.
Summary of the invention
The objective of the invention is at the deficiency in the existing technology, a kind of tertiary oil production in oil field technology that is applicable to is provided, adopt elbow to connect right angle pipeline and the low ball valve of shearing, strengthen the import and export latus rectum of polymer, sampling viscosity retention ratio height, guaranteed the accuracy of sample examination data and possessed unique release modular design, the single online sampler of bypass type tertiary oil recovery that connects the novel online antitheft blowout prevention sampled functions of through-type pipeline in parallel that stops high-pressure solution to spray.
The technical solution used in the present invention is:
The online sampler of a kind of bypass type tertiary oil recovery, comprise joint I, worm gear ball valve I, pressure-relief valve, pressure-releasing cavity, atmospheric valve, joint II, sample valve, worm gear ball valve II, joint III, elbow, it is characterized in that described worm gear ball valve I, two side flanges of worm gear ball valve II are welded on the pipeline with one heart, threeway pipeline vertical welding connects in succession, the right angle pipeline adopts elbow to be welded to connect, sample valve and pressure-relief valve all are vertically welded on the pipeline, the two ends of pressure-releasing cavity and pressure-relief valve and atmospheric valve adopt threaded engagement, joint I, joint II and joint III all adopt with pipeline and are threaded.
The online sampler of bypass type tertiary oil recovery of the present invention is realized the sampling of holding back of solution by the keying of by-pass valve control.
Further specify the present invention, described joint III end is import, and joint I and joint II end are outlet, and when normally injecting, worm gear ball valve I and worm gear ball valve II, sample valve, pressure-relief valve, atmospheric valve all are in closed condition.
When sampling, elder generation is with the production ports valve closing of joint I end, worm gear ball valve I and ball valve worm gear ball valve II open, again sample valve is opened, close after the foreign material of sample tap are rinsed well, with joint II end production ports valve closing, close worm gear ball valve II and worm gear ball valve I successively then, inject liquid like this and just be stored in pipeline between worm gear ball valve II and the worm gear ball valve I.
Pressure-relief valve is opened, opened atmospheric valve discharge line pressure then, inject the liquid buffering and enter pressure-releasing cavity, open the sample valve sampling at last.
After sampling finishes, earlier sample valve, pressure-relief valve, atmospheric valve are closed, again joint I end production ports valve, worm gear ball valve I and worm gear ball valve II are opened successively.
The invention has the beneficial effects as follows:
The online sampler of bypass type tertiary oil recovery is to aim at tertiary oil production in oil field technology and the novel online antitheft blowout prevention sampler of a kind of double nip bypass type pipeline in parallel of development and production.It has the following advantages: owing to adopt the low ball valve of shearing, strengthen the import and export latus rectum of polymer, sampling viscosity retention ratio height has guaranteed the accuracy of sample examination data; Described elbow connects the right angle pipeline, and fluid resistance is little, and the solution shear rate is low; The worm-gear driven that it is selected for use is annotated poly-high-pressure ball valve, opens and closes rapidly, and is time saving and energy saving, and long service life has unique release modular design, stops high-pressure solution to spray, and prevents the generation of contingency; This device critical piece is and is welded to connect, and effectively prevent mean is stolen; Novel structure of the present invention, installation and maintenance are convenient, and parts are stainless steel, do not produce chemical degradation; Thereby realize safety, the economical production of oil recovery.This apparatus structure is simple, and is easy to process, dependable performance, and its field operation success rate reaches 100%, has improved the oil-gas field development effect.
Description of drawings
Fig. 1 is the online sampler structural representation of bypass type tertiary oil recovery.
In Fig. 1:
1-joint I, 2-worm gear ball valve I, 3-pressure-relief valve, 4-pressure-releasing cavity, 5-atmospheric valve, 6-joint II, 7-sample valve, 8-worm gear ball valve II, 9-joint III, 10-elbow.
The specific embodiment
Further specify the present invention below in conjunction with Figure of description.
The online sampler of a kind of bypass type tertiary oil recovery, comprise joint I, worm gear ball valve I, pressure-relief valve, pressure-releasing cavity, atmospheric valve, joint II, sample valve, worm gear ball valve II, joint III, elbow, it is characterized in that described worm gear ball valve I2, two side flanges of worm gear ball valve II8 are welded on the pipeline with one heart, threeway pipeline vertical welding connects in succession, the right angle pipeline adopts elbow 10 to be welded to connect, sample valve 7 and pressure-relief valve 3 all are vertically welded on the pipeline, the two ends of pressure-releasing cavity 4 and pressure-relief valve 3 and atmospheric valve 5 adopt threaded engagement, joint I1, joint II6 and joint III9 all adopt with pipeline and are threaded.
The online sampler of bypass type tertiary oil recovery of the present invention is realized the sampling of holding back of solution by the keying of by-pass valve control.
Further specify the present invention, described joint III9 end is import, and joint I1 and joint II6 end are outlet, and when normally injecting, worm gear ball valve I2 and worm gear ball valve II8, sample valve 7, pressure-relief valve 3, atmospheric valve 5 all are in closed condition.
When sampling, with the production ports valve closing of joint I1 end, worm gear ball valve I2 and ball valve worm gear ball valve II8 open, and sample valve 7 are opened again, and close after the foreign material of sample tap are rinsed well earlier.With joint II6 end production ports valve closing, close worm gear ball valve II8 and worm gear ball valve I2 successively then, inject liquid like this and just be stored in pipeline between worm gear ball valve 8II and the worm gear ball valve I2.Pressure-relief valve 3 is opened, opened atmospheric valve 5 discharge line pressure then, inject the liquid buffering and enter pressure-releasing cavity 4, open sample valve 7 samplings at last.
After sampling finishes, earlier sample valve 7, pressure-relief valve 3, atmospheric valve 5 are closed, again joint I1 end production ports valve, worm gear ball valve I2 and worm gear ball valve II8 are opened successively.
Above-described embodiment, the present invention specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out its contour structures and compound mode etc. all should be included in protection scope of the present invention.
Claims (9)
1. online sampler of bypass type tertiary oil recovery, comprise joint I, worm gear ball valve I, pressure-relief valve, pressure-releasing cavity, atmospheric valve, joint II, sample valve, worm gear ball valve II, joint III, elbow, it is characterized in that described worm gear ball valve I, two side flanges of worm gear ball valve II are welded on the pipeline with one heart, threeway pipeline vertical welding connects in succession, the right angle pipeline adopts elbow to be welded to connect, sample valve and pressure-relief valve all are vertically welded on the pipeline, the two ends of pressure-releasing cavity and pressure-relief valve and atmospheric valve adopt threaded engagement, joint I, joint II and joint III all adopt with pipeline and are threaded.
2. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1 is characterized in that described sampler by the keying of by-pass valve control, realizes the sampling of holding back of solution.
3. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1, it is characterized in that described joint III end is import, joint I and joint II end are outlet, and when normally injecting, worm gear ball valve I and worm gear ball valve II, sample valve, pressure-relief valve, atmospheric valve all are in closed condition.
4. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1, it is characterized in that described when sampling, elder generation is with the production ports valve closing of joint I end, worm gear ball valve I and ball valve worm gear ball valve II open, again sample valve is opened, close after the foreign material of sample tap are rinsed well, then with joint II end production ports valve closing, close worm gear ball valve II and worm gear ball valve I successively, injection liquid just is stored in the pipeline between worm gear ball valve II and the worm gear ball valve I like this, and pressure-relief valve is opened, and opens atmospheric valve discharge line pressure then, inject the liquid buffering and enter pressure-releasing cavity, open the sample valve sampling at last.
5. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1, after it is characterized in that described sampling finishes, earlier sample valve, pressure-relief valve, atmospheric valve are closed, again joint I end production ports valve, worm gear ball valve I and worm gear ball valve II are opened successively.
6. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1 is characterized in that the low ball valve of shearing of described employing, strengthens the import and export latus rectum of polymer, and sampling viscosity retention ratio height has guaranteed the accuracy of sample examination data.
7. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1 is characterized in that described elbow connects the right angle pipeline, and fluid resistance is little, and the solution shear rate is low.
8. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1 is characterized in that described release modular design, can stop high-pressure solution to spray.
9. the online sampler of a kind of bypass type tertiary oil recovery according to claim 1 is characterized in that described this device critical piece is to be welded to connect that effectively prevent mean is stolen, and parts are stainless steel, do not produce chemical degradation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310095844 CN103195419A (en) | 2013-03-22 | 2013-03-22 | Bypass tertiary oil recovery online sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310095844 CN103195419A (en) | 2013-03-22 | 2013-03-22 | Bypass tertiary oil recovery online sampling device |
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| CN103195419A true CN103195419A (en) | 2013-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687330A (en) * | 2016-08-04 | 2018-02-13 | 东营利达石油工程技术服务有限公司 | Intelligent anti-theft record pressure sampler |
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- 2013-03-22 CN CN 201310095844 patent/CN103195419A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107687330A (en) * | 2016-08-04 | 2018-02-13 | 东营利达石油工程技术服务有限公司 | Intelligent anti-theft record pressure sampler |
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Application publication date: 20130710 |