CN103196704A - Straight-through-type tertiary oil recovery online sampling device - Google Patents
Straight-through-type tertiary oil recovery online sampling device Download PDFInfo
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- CN103196704A CN103196704A CN 201310095843 CN201310095843A CN103196704A CN 103196704 A CN103196704 A CN 103196704A CN 201310095843 CN201310095843 CN 201310095843 CN 201310095843 A CN201310095843 A CN 201310095843A CN 103196704 A CN103196704 A CN 103196704A
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Abstract
The invention provides a straight-through-type tertiary oil recovery online sampling device. The straight-through-type tertiary oil recovery online sampling device comprises a joint I, a worm wheel ball valve I, a sampling valve, an elbow, a pressure relief valve, a pressure relief cavity, an emptying valve, a worm wheel ball valve II, a joint II and a worm wheel ball valve III and is characterized in that flanges on the two sides of the worm wheel ball valve I, the worm wheel ball valve II and the worm wheel ball valve III are concentrically welded on a pipeline, a tee-junction pipeline is in vertically welded connection, a right-angle pipeline is in welded connection by adopting the elbow, the sampling valve and the pressure relief valve are vertically welded on the pipeline, the two ends of the pressure relief cavity are matched with the pressure relief valve and the emptying valve through threads, and the joint I and the joint II are connected with the pipeline through the threads. As a low-shearing ball valve is adopted, the drift diameter of an inlet and an outlet of a polymer is increased; the retention rate of sampling viscosity is high, so that the accuracy of sampling inspection data is ensured; the elbow is connected with the right-angle pipeline, so that the fluid resistance is little; the shear rate of a solution is low; the unique pressure relief combinational design prevents a high-pressure solution from being sprayed; the main parts are in welding connection, so that the device is effectively prevented from being stolen; and the straight-through-type tertiary oil recovery online sampling device is novel in structure and convenient to install and maintain.
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 through type tertiary oil recovery.
Background technology
Along with the continuous increase of the world to the petroleum 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 maturing field 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 high polymer chemistry synthetics) in the oil reservoir.Polymer viscosity is very big, can stop up big duct, stops local 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 performance 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 environmental 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, possesses unique release composite design, the single online sampler of through 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 through type tertiary oil recovery, comprise joint I, worm gear ball valve I, sample valve, elbow, pressure-release valve, pressure-releasing cavity, atmospheric valve, worm gear ball valve II, joint II, worm gear ball valve III, it is characterized in that described worm gear ball valve I, worm gear ball valve II, two side flanges of worm gear ball valve III 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-release valve all are vertically welded on the pipeline, the two ends of pressure-releasing cavity and pressure-release valve and atmospheric valve adopt threaded engagement, and joint I and joint II all adopt with pipeline and be threaded.
The online sampler of through 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, joint I end is import, and joint II end is outlet, and when normally injecting, worm gear ball valve III is in full-gear, and worm gear ball valve I and worm gear ball valve II, sample valve, pressure-release valve, atmospheric valve all are in closed condition.
When sampling, earlier worm gear ball valve III is closed, worm gear ball valve I and worm gear ball valve II open successively, sample valve are opened again, and close after the foreign material of sample tap are rinsed well, close worm gear ball valve I and worm gear ball valve II then successively, injection liquid just is stored in the pipeline between worm gear ball valve worm gear ball valve I and the worm gear ball valve II like this, and pressure-release 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.
After sampling finishes, earlier sample valve, pressure-release valve, atmospheric valve are closed, again worm gear ball valve III, worm gear ball valve I, worm gear ball valve II are opened successively.
The invention has the beneficial effects as follows:
The online sampler of through type tertiary oil recovery is to aim at tertiary oil production in oil field technology and a kind of single novel online antitheft blowout prevention sampler of through-type pipeline in parallel that connects 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 polymkeric substance, sampling viscosity retention ratio height has guaranteed the accuracy of sample examination data.Its elbow connects the right angle pipeline, and fluid resistance is little, and the solution shear rate is low.Select for use worm-gear driven to annotate poly-high-pressure ball valve, open and close rapidly, time saving and energy saving, long service life.Have unique release composite design, stop high-pressure solution to spray, prevent the generation of mishap.The critical piece of this device is and is welded to connect, and effectively prevent mean is stolen.The product structure novelty, 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 site work success ratio reaches 100%, has improved the oil-gas field development effect.
Description of drawings
Fig. 1 is the online sampler structural representation of through type tertiary oil recovery.
In Fig. 1:
1-joint I, 2-worm gear ball valve I, 3-sample valve, 4-elbow, 5-pressure-release valve, 6-pressure-releasing cavity, 7-atmospheric valve, 8-worm gear ball valve II, 9-joint II, 10-worm gear ball valve III.
Embodiment
Further specify the present invention below in conjunction with Figure of description.
The online sampler of a kind of through type tertiary oil recovery, comprise 1-joint I, 2-worm gear ball valve I, the 3-sample valve, the 4-elbow, the 5-pressure-release valve, the 6-pressure-releasing cavity, the 7-atmospheric valve, 8-worm gear ball valve II, 9-joint II, 10-worm gear ball valve III, it is characterized in that described worm gear ball valve I2, worm gear ball valve II8, two side flanges of worm gear ball valve III10 are welded on the pipeline with one heart, threeway pipeline vertical welding connects in succession, the right angle pipeline adopts elbow 4 to be welded to connect, sample valve 3 and pressure-release valve 5 all are vertically welded on the pipeline, the two ends of pressure-releasing cavity 6 and pressure-release valve 5 and atmospheric valve 7 adopt threaded engagement, and joint I1 and joint II9 all adopt with pipeline and be threaded.
The online sampler of through 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, joint I1 end is import, and joint II9 end is outlet.During normal the injection, worm gear ball valve III10 is in full-gear, and worm gear ball valve I2 and worm gear ball valve II8, sample valve 3, pressure-release valve 5, atmospheric valve 7 all are in closed condition.
When sampling, earlier worm gear ball valve III10 is closed, worm gear ball valve I2 and worm gear ball valve II8 open successively, sample valve 3 are opened again, and close after the foreign material of sample tap are rinsed well, close worm gear ball valve I2 and worm gear ball valve II8 then successively, injection liquid just is stored in the pipeline between worm gear ball valve worm gear ball valve I2 and the worm gear ball valve II8 like this, and pressure-release valve 5 is opened, and opens atmospheric valve 7 discharge line pressure then, inject the liquid buffering and enter pressure-releasing cavity 6, open sample valve 3 samplings at last.
After sampling finishes, earlier sample valve 3, pressure-release valve 5, atmospheric valve 7 are closed, again worm gear ball valve III10, worm gear ball valve I2, worm gear ball valve II8 are opened successively.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out its contour structures and array mode etc. all should be included in protection scope of the present invention.
Claims (5)
1. online sampler of through type tertiary oil recovery, comprise joint I, worm gear ball valve I, sample valve, elbow, pressure-release valve, pressure-releasing cavity, atmospheric valve, worm gear ball valve II, joint II, worm gear ball valve III, it is characterized in that described worm gear ball valve I, worm gear ball valve II, two side flanges of worm gear ball valve III 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-release valve all are vertically welded on the pipeline, the two ends of pressure-releasing cavity and pressure-release valve and atmospheric valve adopt threaded engagement, and joint I and joint II all adopt with pipeline and be threaded.
2. the online sampler of a kind of through type tertiary oil recovery according to claim 1 is characterized in that described online 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 through type tertiary oil recovery according to claim 1, it is characterized in that described joint I end is import, joint II end is outlet, during normal the injection, worm gear ball valve III is in full-gear, and worm gear ball valve I and worm gear ball valve II, sample valve, pressure-release valve, atmospheric valve all are in closed condition.
4. the online sampler of a kind of through type tertiary oil recovery according to claim 1, when it is characterized in that described sampling, earlier worm gear ball valve III is closed, worm gear ball valve I and worm gear ball valve II open successively, again sample valve is opened, close after the foreign material of sample tap are rinsed well, close worm gear ball valve I and worm gear ball valve II then successively, injection liquid just is stored in the pipeline between worm gear ball valve worm gear ball valve I and the worm gear ball valve II like this, pressure-release valve is opened, open 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 through type tertiary oil recovery according to claim 1, it is characterized in that described sampling finishes after, earlier sample valve, pressure-release valve, atmospheric valve are closed, again worm gear ball valve III, worm gear ball valve I, worm gear ball valve II are opened successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310095843 CN103196704A (en) | 2013-03-22 | 2013-03-22 | Straight-through-type tertiary oil recovery online sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310095843 CN103196704A (en) | 2013-03-22 | 2013-03-22 | Straight-through-type tertiary oil recovery online sampling device |
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| CN103196704A true CN103196704A (en) | 2013-07-10 |
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| CN 201310095843 Pending CN103196704A (en) | 2013-03-22 | 2013-03-22 | Straight-through-type tertiary oil recovery online sampling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314564A (en) * | 2014-09-25 | 2015-01-28 | 中国石油天然气股份有限公司 | Wellhead sampling device for in-depth fluid diversion |
| CN104990762A (en) * | 2015-06-17 | 2015-10-21 | 成都科创佳思科技有限公司 | Adjustable chemical pipe fitting structure |
-
2013
- 2013-03-22 CN CN 201310095843 patent/CN103196704A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314564A (en) * | 2014-09-25 | 2015-01-28 | 中国石油天然气股份有限公司 | Wellhead sampling device for in-depth fluid diversion |
| CN104314564B (en) * | 2014-09-25 | 2017-02-15 | 中国石油天然气股份有限公司 | Wellhead sampling device for in-depth fluid diversion |
| CN104990762A (en) * | 2015-06-17 | 2015-10-21 | 成都科创佳思科技有限公司 | Adjustable chemical pipe fitting structure |
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Application publication date: 20130710 |