CN103867139B - Continuous oil pipe tripping protection method and device - Google Patents
Continuous oil pipe tripping protection method and device Download PDFInfo
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- CN103867139B CN103867139B CN201410067045.0A CN201410067045A CN103867139B CN 103867139 B CN103867139 B CN 103867139B CN 201410067045 A CN201410067045 A CN 201410067045A CN 103867139 B CN103867139 B CN 103867139B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008054 signal transmission Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The invention provides a coiled tubing tripping protection method and a device, wherein the method comprises the following steps: acquiring a lifting depth signal, a load signal and a current signal of a lifting tool through a measuring instrument, and transmitting the acquired signals to a comparator; the comparator compares the signal transmitted by the measuring instrument with a corresponding set signal to obtain a deviation signal, and transmits the deviation signal to the PLC; and the PLC controls the lifting speed of the lifting tool according to the deviation signal to realize the lifting protection of the coiled tubing.
Description
Technical field
The present invention relates to field of petroleum exploitation, particularly a kind of coiled tubing removes guard method and device.
Background technology
Coiled tubing measuring technology utilizes continuous oil pipe operation technology, and in conjunction with modern high technology electronic technology, by coiled tubing, electronic instrument is transported to target zone in well, in well, target zone is tested various parameter and noted down.Multipoint acquisition data are taked according to production actual conditions.By coiled tubing measuring technology, obtain formation parameter data, well group Development and Production and correlation technique are carried out and has important directive significance.
When current coiled tubing removes, adopt and special remove instrument, can when removing monitoring current, load, remove the data such as the degree of depth.Remove in process at coiled tubing, at present, the uncontrollable coiled tubing of conventional art remove to slow down when process meets card or coiled tubing under having stopped inferior situation during shaft bottom, automatically cannot determining reasonably to remove speed according to removing the degree of depth, control can only be relied on to remove personnel and control by rule of thumb to slow down or stop to remove.Like this, the situations such as coiled tubing bending are likely caused.Therefore, be badly in need of solution how to protect coiled tubing when coiled tubing removes.
Summary of the invention
For solving the problem, the present invention proposes a kind of coiled tubing and removes guard method and device, makes the in good time reduction of speed of the instrument that removes or stopping, occurring to prevent the situations such as coiled tubing bending.
For achieving the above object, the invention provides a kind of coiled tubing and remove guard method, the method comprises:
By measuring instrument obtain remove instrument remove depth signal, load signal and current signal, and by the Signal transmissions that obtains to comparator;
The signal that described measuring instrument transmits by described comparator compares with corresponding setting signal, obtains deviation signal, and by offset signal transmission to PLC;
What remove instrument described in PLC controls according to described deviation signal removes speed, realizes coiled tubing and removes protection.
Optionally, in an embodiment of the present invention, described deviation signal comprises depth offset signal, load deflections signal and current deviation signal.
Optionally, in an embodiment of the present invention, described PLC control according to described deviation signal described in remove the speed that removes of instrument step comprise:
According to depth offset signal, remove process beginning and close to the ending stage, remove instrument described in described PLC controls, coiled tubing low speed removed;
According to load deflections signal and current deviation signal, described PLC judges that coiled tubing removes and whether meets card, if there is chance card situation, then removes instrument described in described PLC control, coiled tubing low speed is removed; If described load deflections signal and current deviation signal exceed default limit, then remove instrument described in described PLC control and stop removing.
For achieving the above object, present invention also offers a kind of coiled tubing and remove protective device, described protective device realizes protecting coiled tubing by the speed that removes controlling the instrument that removes; This device comprises: measuring instrument, comparator and PLC; Described measuring instrument one end is connected with the described instrument that removes, and the described measuring instrument other end is connected with described comparator one end, and the described comparator other end is connected with described PLC one end, and the described PLC other end is connected with the described instrument that removes;
Described measuring instrument, removes depth signal, load signal and current signal for what obtain the instrument of removing, and by the Signal transmissions that obtains to comparator;
Described comparator, compares with corresponding setting signal for the signal transmitted by described measuring instrument, obtains deviation signal, and by offset signal transmission to PLC;
Described PLC, removes speed for what remove instrument described in controlling according to described deviation signal, realizes coiled tubing and remove protection.
Technique scheme has following beneficial effect: in practice, the technical scheme of the application can regulate the speed of removing to avoid manual adjustment according to removing the degree of depth automatically, and, can slow down when coiled tubing meets card according to load and electric current or stop removing, enter under stopping during shaft bottom lower, avoid the possibility of human error, remove speed control is appropriate, safety is good, prevents the situations such as coiled tubing bending from occurring.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart that a kind of coiled tubing that the present invention proposes removes guard method;
Fig. 2 is the block diagram that a kind of coiled tubing that the present invention proposes removes protective device;
Fig. 3 is that the coiled tubing of the present embodiment removes protective device block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of coiled tubing proposed for the present invention removes the flow chart of guard method.The method comprises:
Step 101): by measuring instrument obtain remove instrument remove depth signal, load signal and current signal, and by the Signal transmissions that obtains to comparator;
Step 102): the signal that described measuring instrument transmits by described comparator compares with corresponding setting signal, obtains deviation signal, and by offset signal transmission to PLC;
Step 103): what remove instrument described in PLC controls according to described deviation signal removes speed, realizes coiled tubing and removes protection.
Optionally, in an embodiment of the present invention, described deviation signal comprises depth offset signal, load deflections signal and current deviation signal.
Optionally, in an embodiment of the present invention, described PLC control according to described deviation signal described in remove the speed that removes of instrument step comprise:
According to depth offset signal, remove process beginning and close to the ending stage, remove instrument described in described PLC controls, coiled tubing low speed removed;
According to load deflections signal and current deviation signal, described PLC judges that coiled tubing removes and whether meets card, if there is chance card situation, then removes instrument described in described PLC control, coiled tubing low speed is removed; If described load deflections signal and current deviation signal exceed default limit, then remove instrument described in described PLC control and stop removing.
As shown in Figure 2, a kind of coiled tubing proposed for the present invention removes the block diagram of protective device.Described protective device realizes protecting coiled tubing by the speed that removes controlling the instrument that removes; This device comprises: measuring instrument 203, comparator 201 and PLC 202; Described measuring instrument 203 one end is connected with the described instrument 204 that removes, described measuring instrument 203 other end is connected with described comparator 201 one end, described comparator 201 other end is connected with described PLC 202 one end, and described PLC 202 other end is connected with the described instrument 204 that removes;
Described measuring instrument 203, removes depth signal, load signal and current signal for what obtain the instrument of removing 204, and by the Signal transmissions that obtains to comparator 201;
Described comparator 201, compares with corresponding setting signal for the signal transmitted by described measuring instrument, obtains deviation signal, and by offset signal transmission to PLC 202;
Described PLC 202, removes speed for what remove instrument 204 described in controlling according to described deviation signal, realizes coiled tubing and remove protection.
Embodiment:
As shown in Figure 3, for the coiled tubing of the present embodiment removes protective device block diagram.In the present embodiment, what remove instrument by measuring instrument monitoring removes the degree of depth, load and electric current, removes speed by PLC according to what remove that the degree of depth, load and current value determine the instrument that removes.According to removing the degree of depth, judge to remove instrument and whether be in initial period and ending stage, if so, PLC then controls the instrument that removes and slows down, and coiled tubing also also slows down, other time normally remove.Removing in process; during when coiled tubing chance card or to shaft bottom; because resistance increase suddenly can cause load and electric current to increase within very short time; reduce coiled tubing by PLC interlocked control and remove speed; adopt closed-loop control system; if load and current data recover normal after slowing down; the instrument that then removes recovers normally to remove speed; if when load and electric current boost value exceed default limit; control whole system by PLC to stop removing; reach accurate, safe and remove requirement, protection coiled tubing.
In the present embodiment, select PLC to be because PLC has and can carry out plug replacing, is applicable to any environment, safeguards simple, reliable, powerful, integrated with the advantage such as autgmentability is strong, use under being particularly suitable for industrial adverse circumstances.Therefore, applicable coiled tubing removes environment, and facilitates later maintenance and Function Extension.
From on-the-spot practical application, reach the reliable requirement of construction safety, avoid the situation may damaging coiled tubing in the process of removing, prevent because coiled tubing damages and delay production.Save manpower simultaneously, there is certain economic worth.
Last it is noted that above-mentioned only in order to illustrate the present invention and and unrestricted technical scheme described in the invention; Although this manual is to present invention has been detailed description, but, those skilled in the art still can modify to the present invention or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in right of the present invention.
Claims (2)
1. coiled tubing removes a guard method, it is characterized in that, the method comprises:
By measuring instrument obtain remove instrument remove depth signal, load signal and current signal, and by the Signal transmissions that obtains to comparator;
The signal that described measuring instrument transmits by described comparator and accordingly setting signal compare, and obtain deviation signal, and by offset signal transmission to PLC;
What remove instrument described in PLC controls according to described deviation signal removes speed, realizes coiled tubing and removes protection;
Wherein, described PLC control according to described deviation signal described in remove the speed that removes of instrument step comprise:
According to depth offset signal, remove process beginning and close to the ending stage, remove instrument described in described PLC controls, coiled tubing low speed removed;
According to load deflections signal and current deviation signal, described PLC judges that coiled tubing removes and whether meets card, if there is chance card situation, then removes instrument described in described PLC control, coiled tubing low speed is removed; If described load deflections signal and current deviation signal exceed default limit, then remove instrument described in described PLC control and stop removing.
2. the method for claim 1, is characterized in that, described deviation signal comprises depth offset signal, load deflections signal and current deviation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067045.0A CN103867139B (en) | 2014-02-26 | 2014-02-26 | Continuous oil pipe tripping protection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067045.0A CN103867139B (en) | 2014-02-26 | 2014-02-26 | Continuous oil pipe tripping protection method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103867139A CN103867139A (en) | 2014-06-18 |
| CN103867139B true CN103867139B (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410067045.0A Active CN103867139B (en) | 2014-02-26 | 2014-02-26 | Continuous oil pipe tripping protection method and device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103867139B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064934B (en) * | 2015-08-26 | 2019-01-29 | 东营天华石油技术开发有限公司 | A kind of remote-controlled applications of coiled tubing unit removed |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE688319A (en) * | 1965-10-19 | 1967-04-17 | ||
| CN200946499Y (en) * | 2006-09-27 | 2007-09-12 | 张成国 | On-line continuous detection instrument for length for lowering or lifting oil pipe for oil field dowhole operation |
| CN203808870U (en) * | 2014-02-26 | 2014-09-03 | 中国石油天然气股份有限公司 | Continuous oil pipe plays protection device down |
-
2014
- 2014-02-26 CN CN201410067045.0A patent/CN103867139B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE688319A (en) * | 1965-10-19 | 1967-04-17 | ||
| CN200946499Y (en) * | 2006-09-27 | 2007-09-12 | 张成国 | On-line continuous detection instrument for length for lowering or lifting oil pipe for oil field dowhole operation |
| CN203808870U (en) * | 2014-02-26 | 2014-09-03 | 中国石油天然气股份有限公司 | Continuous oil pipe plays protection device down |
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| Publication number | Publication date |
|---|---|
| CN103867139A (en) | 2014-06-18 |
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