CN212428803U - Oil field horizontal well liquid production section test pipe column and system - Google Patents
Oil field horizontal well liquid production section test pipe column and system Download PDFInfo
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- CN212428803U CN212428803U CN202020704040.5U CN202020704040U CN212428803U CN 212428803 U CN212428803 U CN 212428803U CN 202020704040 U CN202020704040 U CN 202020704040U CN 212428803 U CN212428803 U CN 212428803U
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Abstract
The utility model belongs to the technical field of the oil field development, concretely relates to liquid section test tubular column and system are produced to oil field horizontal well. The utility model discloses a production profile testing tubular column of oilfield horizontal well is formed by organically combining a gas lift coil, a continuous oil pipe, a testing mechanism and a slotted liner pipe; the gas lift coil is arranged in the continuous oil pipe, and the testing mechanism is arranged in the gas lift coil; the slotted liner pipe is sleeved outside the continuous oil pipe. The utility model discloses a handle pit shaft, connection tubular column, lower entering tubular column and annotate nitrogen gas and four steps of normal production, acquire test oil well production state under the full well bore temperature data, judge the high moisture section according to the result, provide reliable foundation for horizontal well accuse water oil stabilization measure.
Description
Technical Field
The utility model belongs to the technical field of the oil field development, concretely relates to liquid section test tubular column and system are produced to oil field horizontal well.
Background
With the continuous expansion of the development scale of the horizontal well, the problem of water breakthrough of the oil well along with the development time is also faced while the recovery efficiency of the oil field is improved. After the oil well breaks through water, the productivity of the oil well is rapidly reduced, a horizontal well liquid production profile test needs to be developed urgently, underground temperature parameters are read directly on the ground, a basis is provided for optimizing a development scheme and improving the recovery ratio, and therefore water plugging is implemented in a targeted mode.
At present, the conventional production profile testing technology of the horizontal well has great testing difficulty in each production section, and mainly has the following defects:
the conventional testing technology has the problem that the crawler encounters a card, so that the testing success rate is low and is only about 30 percent.
Instrument response is poor under the state of small flow and fluid layering. For example, the turbine flowmeter has large starting displacement (starting flow velocity of 0.01m/s and 5)1/2"casing corresponding flow rate of 10.6m3/d)；
The conventional liquid production profile test cannot directly read data, the test time is long (average 15 days/well), and the operation risk is high when the test pipe column is pulled down;
and fourthly, the mechanical method test technology is stuck open by a packer and does not belong to the test under the same pressure system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a liquid section test tubular column and system are produced to oil field horizontal well, aim at provide one kind can master the section change of temperature in the pit shaft along with the time, and the test is accurate, the cycle is short, and reduces the operation risk to effectively judge the liquid section test tubular column and the system of producing of high water-bearing interval.
In order to achieve the above object, the utility model adopts the following technical scheme:
a kind of oil field horizontal well produces the section test tubular column, including gas lift coil, coiled tubing, testing mechanism and slot liner tube; the gas lift coil is arranged in the continuous oil pipe, and the testing mechanism is arranged in the gas lift coil; the slotted liner pipe is sleeved outside the continuous oil pipe.
The testing mechanism is an optical fiber testing cable.
The optical fiber testing cable is the same as the gas lift coil and the coiled tubing in length.
The device at least comprises a production profile testing tubular column of the oil field horizontal well and a signal receiving processor; the signal receiving processor is arranged on the ground and is connected with the electric signal of the testing mechanism.
Has the advantages that:
(1) the utility model discloses utilize coiled tubing to bring the test pipeline into the target layer, drag coiled tubing and annotate nitrogen gas circulation gas lift, accomplish the test of producing the liquid section under the oil production well production state, the location is accurate, and efficiency of software testing is high, and the process is simple, has effectively reduced site operation operating cost.
(2) The utility model discloses can be applied to the judgement of well high water horizontal well, and then take effectual accuse water oil stabilization measure, provide important foundation for understanding evaluation development effect, guide development policy adjustment.
The above description is only an overview of the technical solution of the present invention, and in order to clearly understand the technical means of the present invention and to implement the technical solution according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a side view of the structure of the utility model in use;
fig. 2 is the coiled tubing layout of the present invention.
In the figure: 1-surface casing pipe; 2-gas lift coil; 3-coiled tubing; 4-fiber optic test cables; 5-slotted liner tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
the production profile testing tubular column for the oil field horizontal well shown in the figures 1-2 comprises a gas lift coil 2, a coiled tubing 3, a testing mechanism and a slotted liner 5; the gas lift coil 2 is arranged in the coiled tubing 3, and the testing mechanism is arranged in the gas lift coil 2; the slotted liner tube 5 is sleeved outside the coiled tubing 3.
When the device is actually used, firstly, a shaft to be measured is subjected to treatments such as drifting, sand washing and well washing, casing scraping and the like; then inserting the gas lift coil 2 into the coiled tubing 3, and then inserting the optical fiber test cable 4 into the gas lift coil 2; then, a slotted liner pipe 5 is put into the surface casing 1 of the well to be tested, and then the connected coiled tubing 3 is put into the horizontal well to be tested; and then injecting nitrogen gas lift into the coiled tubing from the ground, wherein in the pumping process and the horizontal well gas lift production process, fluid in the shaft flows through the optical fiber test cable 4, the optical fiber test cable 4 acquires shaft temperature information and transmits the temperature information to the signal receiving processor in the form of electric signals, so that the ground can directly read profile data of the temperature in the shaft, and a basis is provided for later-stage implementation of water control and oil stabilization of the horizontal well.
The utility model discloses utilize coiled tubing to bring the test pipeline into the target layer, drag coiled tubing and annotate nitrogen gas circulation gas lift, accomplish the test of producing the liquid section under the oil production well production state, the location is accurate, and efficiency of software testing is high, and the process is simple, can reduce the site operation operating cost. The utility model discloses be applied to the judgement of well high moisture horizontal well, and then take the steady oil measure of accuse water, for the understanding evaluation development effect, guide development policy adjustment and provide important means.
In practical application, when the oil well inclination angle is larger than 45 degrees and a horizontal well section is formed, the coiled tubing 3 adopts a coupling to chamfer the tubing.
Example two:
the difference between the production profile testing string for the horizontal well of the oil field shown in fig. 1-2 and the first embodiment is that: the testing mechanism is an optical fiber testing cable 4.
In actual use, the optical fiber test cable 4 can conveniently acquire and transmit related data, the structure of the tubular column is greatly simplified, the positioning is accurate, the related data can be accurately acquired, the test efficiency is high, the process is simple, and the site construction operation cost is effectively reduced.
Example three:
the difference between the production profile testing string for the horizontal well of the oil field shown in the figures 1-2 and the second embodiment is that: the optical fiber test cable 4 has the same length as the gas lift coil 2 and the coiled tubing 3.
When the horizontal well production profile testing device is used practically, temperature data of different positions of the horizontal well production profile can be obtained, the production profile is converted by the prior art through temperature difference, the specific water outlet position of a shaft is judged, the multi-section fracturing small-flow horizontal well production profile testing is realized, a basis is provided for implementing water control and oil stabilization in the later stage of the horizontal well, and an important basis is provided for knowing, evaluating and developing effects and guiding development policy adjustment.
Example four:
a kind of oil field horizontal well produces the section test system of liquid, include a kind of oil field horizontal well produces the section test tubular column at least, also include the signal receiving processor; the signal receiving processor is arranged on the ground and is connected with the electric signal of the testing mechanism.
When in actual use, with an oil field horizontal well liquid production section test tubular column after going into oil field horizontal well down, the temperature data of the different positions of the horizontal well liquid production section that will acquire sends for setting up at subaerial signal reception treater, uses the utility model discloses can realize that continuous oil pipe carries, annotates nitrogen gas and lift production, test oil well production state is whole well section of thick bamboo temperature data down, judges high water-bearing section according to the result, provides reliable foundation for horizontal well water control oil stabilization measure.
In this embodiment, any signal receiving processor having the functions of the receiving and data processor in the prior art may be used.
Example five:
a testing method of a production profile testing system of an oil field horizontal well comprises the following steps
The method comprises the following steps: treating a wellbore
Carrying out drifting, sand washing and well washing and casing scraping on a horizontal well to be tested;
step two: connecting pipe column
Inserting the gas lift coil 2 into the coiled tubing 3, and then inserting the optical fiber test cable 4 into the gas lift coil 2;
step three: running string
A slotted liner pipe 5 is put into the well to be tested, and the coiled tubing 3 connected in the step two is put into the horizontal well to be tested;
step four: nitrogen injection and normal production
And nitrogen gas lift is injected into the coiled tubing from the ground, in the production process of the horizontal well gas lift, fluid in the shaft flows through the optical fiber test cable 4, and the optical fiber test cable 4 acquires shaft temperature information and transmits the temperature information to the signal receiving processor in an electric signal form.
Preferably, the coiled tubing 3 in the second step is chamfered by adopting a coupling when the oil well inclination angle is more than 45 degrees and the horizontal well section.
In practical use, when the oil well oblique angle of the coiled tubing 3 in the step two is larger than 45 degrees and a horizontal well section, the tubing is chamfered by adopting a coupling, and all the controllable packer pups are in a closed state. After nitrogen gas lift is injected into the coiled tubing from the ground, in the production process of the gas lift of the horizontal well, fluid in the shaft flows through the optical fiber test cable 4, the optical fiber test cable 4 can transmit the acquired data of different positions to a ground receiver to obtain temperature change data of the shaft, a temperature change curve is formed, temperature-well depth production profile data are acquired, and important basis is provided for follow-up water control and oil stabilization measures, understanding and evaluating development effects and guiding development policy adjustment.
Example six:
the well is a fracturing horizontal well, and fracturing is transformed into 5 sections to carry out fluid production profile testing.
The method comprises the following steps: treating a wellbore
The well slant depth is 3090m, the horizontal section length is 800m, the inner diameter of the casing is 124.26mm, a phi 118mm multiplied by 1.5m drift gauge is used for drifting to the bottom of an artificial well, sand washing is carried out by backwashing, the sand washing and well washing are carried out to the bottom of the artificial well, and a phi 134mm casing scraper is used for scraping the inner wall of the casing of the whole well section.
Step two: connecting pipe column
The gas lift coil 2 is placed in the coiled tubing 3, and then the optical fiber test cable 4 is placed in the gas lift coil 2; the well inclination angle is more than 45 degrees, the horizontal well section adopts a coupling chamfer oil pipe, and the self-control flow collection packer is completely in a closed state;
step three: running string
Firstly, a slotted liner pipe 5 is put in, and then a connected coiled tubing 3 is put in;
step four: and injecting nitrogen gas lift from the coiled tubing on the ground, wherein in the pumping process, fluid in the shaft flows through the optical fiber test cable 4 so as to obtain a shaft temperature profile, and directly reading the temperature profile on the ground to obtain the fluid production profile data.
To sum up, the oil field horizontal well liquid production profile testing pipe column of the utility model is formed by organically combining a gas lift coil 2, a continuous oil pipe 3, a testing mechanism and a slotted liner pipe 5; the testing mechanism adopts an optical fiber testing cable 4; the optical fiber test cable 4 is the same as the gas lift coil 2 and the coiled tubing 3 in length. The method comprises the steps of processing a shaft, connecting the pipe columns, setting the pipe columns, injecting nitrogen and normally producing, acquiring temperature data of the whole shaft under the production state of a test oil well, judging a high water-bearing section according to the result, and providing a reliable basis for water and oil control and stabilization measures of the horizontal well. The utility model discloses utilize coiled tubing to bring the test pipeline into the target layer, drag coiled tubing and annotate nitrogen gas circulation gas lift, accomplish the test of producing the liquid section under the oil production well production state, the location is accurate, and efficiency of software testing is high, and the process is simple, has effectively reduced site operation operating cost.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The foregoing is illustrative of the preferred embodiments of the present invention, and the present invention is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an oil field horizontal well produces liquid section test tubular column which characterized in that: comprises a gas lift coil (2), a coiled tubing (3), a testing mechanism and a slotted liner tube (5); the gas lift coil (2) is arranged in the coiled tubing (3), and the testing mechanism is arranged in the gas lift coil (2); the slotted liner tube (5) is sleeved outside the coiled tubing (3).
2. The oilfield horizontal well fluid production profile test string of claim 1, wherein: the testing mechanism is an optical fiber testing cable (4).
3. The oilfield horizontal well fluid production profile test string of claim 2, wherein: the optical fiber testing cable (4) is the same as the gas lift coil (2) and the coiled tubing (3) in length.
4. The utility model provides an oil field horizontal well fluid production section test system which characterized in that: at least comprising a oilfield horizontal well fluid production profile test string according to any one of claims 1-3, and further comprising a signal receiving processor; the signal receiving processor is arranged on the ground and is connected with the electric signal of the testing mechanism.
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| CN202020704040.5U CN212428803U (en) | 2020-04-30 | 2020-04-30 | Oil field horizontal well liquid production section test pipe column and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441763A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well liquid production profile testing pipe column, system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441763A (en) * | 2020-04-30 | 2020-07-24 | 中国石油天然气股份有限公司 | Oil field horizontal well liquid production profile testing pipe column, system and method |
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