CN106089137A - A kind of coiled tubing throttling traction apparatus and application thereof - Google Patents
A kind of coiled tubing throttling traction apparatus and application thereof Download PDFInfo
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- CN106089137A CN106089137A CN201610671141.5A CN201610671141A CN106089137A CN 106089137 A CN106089137 A CN 106089137A CN 201610671141 A CN201610671141 A CN 201610671141A CN 106089137 A CN106089137 A CN 106089137A
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- throttling
- coiled tubing
- variable cross
- traction apparatus
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- 239000012530 fluid Substances 0.000 claims abstract description 25
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 239000004568 cement Substances 0.000 abstract description 11
- 230000003628 erosive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/08—Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a kind of coiled tubing throttling traction apparatus, including body, described body is variable cross-section straight tube, and this variable cross-section straight tube includes the rate of flow of fluid energy dissipation pipeline section being located at two ends and is located at the variable cross-section section at middle part, and described rate of flow of fluid energy dissipation pipeline section internal diameter is more than variable cross-section section internal diameter.The present invention utilizes the chock pressure difference that fluid produces when flowing through variable cross-section section, act on the sizable thrust (pull strength) produced on this throttling traction apparatus variable cross-section section annulus area, drive coiled tubing to continue to creep into and under enter predetermined cement plug, bridging plug position, bore plug construction normally.This throttling retractor structures is simple, easy to use, and pull strength is big, and assist is notable, cannot creep into due to self-locking during solving current horizontal well coiled tubing drilling out, bridging plug, under the problem that enters.
Description
Technical field
The invention belongs to horizontal well construction technical field, be specifically related to a kind of coiled tubing throttling traction apparatus and answer
With.
Background technology
In recent years, when horizontal well utilizes coiled tubing to carry out drilling out, bridging plug construction, creeping into, under enter during, go out
Showed coiled tubing locking phenomenon, after revolving-door for several times still without lower deeply, cause coiled tubing to be unable to reach predetermined cement plug, bridge
Plug position, seriously constrains coiled tubing site operation progress, adds construction etc. and stop time cost.
Downhole tractor i.e. down-hole crawl device, is also down-hole climbing mechanism, underground tractor, downhole tractor device people, well
Lower hydraulic thruster, downhole drill bit propeller etc., be a kind of downhole tool that can provide pull strength in shaft bottom, and downhole tractor is pressed
Its motion principle can be divided into roller creeping-type, crawler belt creeping-type (track-mounted) and grab arm rest telescopic slide formula (step-by-step movement) 3 kinds.Lead
Draw crawl device and can be divided into CT formula, cable type and hybrid 3 kinds by its energy source.Current domestic existing traction apparatus is former due to design
Cause, great majority exist that structure is complicated and poor reliability, and down-hole frictional resistance is relatively big, under enter and take out difficulty, it is scarce that the pressure of the drill is difficult to applying etc.
Fall into.
Summary of the invention
The invention aims to overcome existing retractor structures complicated and poor reliability, down-hole frictional resistance are relatively big, under enter
Being difficult to the defects such as applying with taking-up difficulty, the pressure of the drill, it is provided that a kind of simple in construction, easy to use, pull strength is big, and assist is notable
Throttling traction apparatus, cannot creep into due to self-locking during solving current horizontal well coiled tubing drilling out, bridging plug, under
The problem entered.
To this end, the invention provides a kind of coiled tubing throttling traction apparatus, including body, described body is variable cross-section straight tube,
This variable cross-section straight tube includes the rate of flow of fluid energy dissipation pipeline section being located at two ends and is located at the variable cross-section section at middle part, described fluid stream
Speed energy dissipation pipeline section internal diameter is more than variable cross-section section internal diameter.
Described variable cross-section section inwall is provided with throttling anti-wearing liner.
Described two ends rate of flow of fluid energy dissipation pipeline section total length is 0.625 ~ 1.5 with the ratio of variable cross-section segment length.
Described rate of flow of fluid energy dissipation pipeline section internal diameter and variable cross-section section internal diameter ratio are 4-5.
Described throttling anti-wearing liner thickness is 5-7mm.
Described throttling anti-wearing liner material is hard alloy tungsten carbide.
The rate of flow of fluid energy dissipation pipeline section at described two ends is equipped with screw thread.
Present invention also offers the application of a kind of coiled tubing throttling traction apparatus, coiled tubing throttling traction apparatus application
In coiled tubing drilling out, bridging plug work progress.
The invention has the beneficial effects as follows:
This throttling traction apparatus that the present invention provides utilizes the chock pressure difference that fluid produces when flowing through variable cross-section section, acts on this joint
The sizable thrust (pull strength) produced on stream traction apparatus variable cross-section section annulus area, drive coiled tubing to continue to creep into and under
Enter predetermined cement plug, bridging plug position, bore plug construction normally.This throttling retractor structures is simple, easy to use, pull strength
Greatly, assist is notable, cannot bore due to self-locking during solving current horizontal well coiled tubing drilling out, bridging plug
Enter, under the problem that enters.
It is described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1, body；2, throttling anti-wearing liner；3, rate of flow of fluid energy dissipation pipeline section；4, variable cross-section section.
Detailed description of the invention
Embodiment 1:
In order to overcome existing retractor structures complicated and poor reliability, down-hole frictional resistance is relatively big, under enter and take out difficult, the pressure of the drill to be difficult to
The defects such as applying, present embodiments provide a kind of coiled tubing throttling traction apparatus, and including body 1, described body 1 is variable cross-section
Straight tube, this variable cross-section straight tube includes the rate of flow of fluid energy dissipation pipeline section 3 being located at two ends and is located at the variable cross-section section 4 at middle part, institute
State rate of flow of fluid energy dissipation pipeline section 3 internal diameter more than variable cross-section section 4 internal diameter.
The principle of the invention: the chock pressure difference utilizing fluid to produce when flowing through variable cross-section section 4, acts on this throttling traction apparatus and becomes
The sizable thrust (pull strength) produced on section 4 annulus area, drive coiled tubing to continue to creep into and under enter predetermined water
The bod, bridging plug position, bore plug construction normally.
Onsite application process:
Before the construction of step 1) horizontal well coiled tubing drilling out, bridging plug, first assemble throttling traction apparatus, bore further according to continuous pipe
Cement plug, bridging plug enter well tool string figure, the throttling traction apparatus that will assemble, by being threadably mounted at spiral shell in continuous oil pipe tool string
The upper end of bar drill；
Step 2) complete throttle traction apparatus and enter well tool series winding connect after, start coiled tubing pump truck, with discharge capacity 450L/min ~
500L/min is circulated and pumps into, and proceeds to enter operation under coiled tubing with discharge capacity 500L/min after stable circulation.
Pump pressure and the discharge capacity of coiled tubing pump truck is observed, owing to the high throttling of throttling traction apparatus is made during entering under step 3)
With, see whether that pump pressure has significantly rising, under conditions of keeping discharge capacity 500L/min constant, if pump pressure has significantly liter
Height, and pipe inner-outer circulation is unimpeded, it is normal to enter under coiled tubing, then the traction apparatus that shows to throttle serves throttling draw；
Enter to cement plug, bridging plug precalculated position under step 4) is normal, bore plug with discharge capacity 500L/min, pump pressure 35 ~ 45MPa infusion
Liquid, proceeds by brill plug operation；
Step 5) is when boring first cement plug, bridging plug, and coiled tubing pump truck output, pump pressure moment may decline, this
Time, discharge capacity should be improved immediately stable to 500L/min, while wash cycles pit shaft detrital grain, throttling traction apparatus continues to drive
Coiled tubing creeps into, under enter to second cement plug, bridging plug position；
The most convenient for walking 6) repeat 4,5 steps, smoothly complete coiled tubing drilling out successively, bridging plug creeps into, under enter process, and complete
All plugs that bore are constructed；
After step 7) is drilled last cement plug, bridging plug, should continue with discharge capacity 500L/min wash cycles pit shaft, until on ground
The liquid machine magazine content of face pollution discharge pond (or fluid reservoir) medium ring air discharge pipeline outlet is less than 2%, it is ensured that wellbore clean；
After step 8) termination of pumping pressure release, play continuous oil pipe tool string, the most again dismounting throttling traction apparatus, O&E erosion in time
Situation, it is simple to the follow-up assembling carrying out throttling traction apparatus and use.
Embodiment 2:
On the basis of embodiment 1, present embodiments provide a kind of coiled tubing throttling traction apparatus, in described variable cross-section section 4
Wall is provided with throttling anti-wearing liner 2.
Before the construction of horizontal well coiled tubing drilling out, bridging plug, first assemble throttling traction apparatus, by wear-resisting for the throttling chosen
Lining 2 connects firmly intact by interference fit.
Throttling anti-wearing liner 2 causes the erosion of variable cross-section section 4 for reducing rate of flow of fluid sudden change, and chock pressure difference is high, resistance to punching
Erosion property is high.
The anti-wearing liner 2 that throttles in the present embodiment uses hard alloy tungsten carbide material to process, body 1 and throttling anti-wearing liner
2 are connected by interference fit, steady with what throttling anti-wearing liner 2 was connected to prevent the impulsive force of high-velocity fluid from affecting body 1
Qualitative and fixing；Body 1 variable cross-section straight tube uses 35CrMo materials processing, and conditioned process hardness reaches 195 ~ 235HB, then oozes
Nickel-base material, oozes nickel layer thickness and reaches 0.5mm, and hardness reaches 635 ~ 850HB, has the highest internal pressure strength and erosion wear resistance.
Wherein, the ratio of described two ends rate of flow of fluid energy dissipation pipeline section 3 total length and variable cross-section section 4 length be 0.625 ~
1.5.Rate of flow of fluid energy dissipation pipeline section 3 internal diameter and variable cross-section section 4 internal diameter ratio are 4-5.Throttling anti-wearing liner 2 thickness is 5-
7mm.While meeting internal pressure strength and erosion wear resistance, produce enough chock pressure differences and the (traction of sizable thrust
Power).
The rate of flow of fluid energy dissipation pipeline section 3 at two ends is equipped with screw thread；Readily accessible and change.
Embodiment 3:
On the basis of embodiment 2, present embodiments providing a kind of coiled tubing throttling traction apparatus, throttle traction apparatus body 1
Maximum outside diameter 55.125mm, minimum diameter 10mm, length 450mm ~ 800mm, body 1 variable cross-section section 4 external diameter 40mm, internal diameter
10mm, thread surface button-type PAC detain；Throttling anti-wearing liner 2 external diameter 10mm, internal diameter 4mm, length 200mm；Pressure 70MPa；Body
Before and after 1 variable cross-section, internal diameter ratio is 4.29, and after increase nockbush, before and after variable cross-section, internal diameter ratio is 10.72.
In order to obtain high chock pressure difference and the pull strength numerical value of this throttling traction apparatus, verify the function of this throttling traction apparatus,
It is applied to this throttling traction apparatus to occur in July, 2016 in Soviet Union and Eastern Europe's 42-54HX well of continuous tubing drill plug self-locking.This well is flatly
Development level well, finishing drilling well depth 4666m, horizontal segment length 1600m.
This well utilizes 2 " × 0.156 " CT × 5300m coiled tubing to carry out drilling out operation, the deep 3254m of cement plug,
During creeping into down, coiled tubing is self-locking in the position of 2953m, in order to ensure normally creeping into, under enter, use this throttling to draw
Device carries out secondary and creeps into down, operational discharge capacity 0.5m3/ min, construction pump pressure 30 ~ 45MPa, calculate this throttling traction apparatus at this
Chock pressure difference and value of thrust in well see table 1.
Utilize coiled tubing analysis software (CTS) to calculate coiled tubing horizontal segment self-locking load in this well to be about
49.38kN.At stable operational discharge capacity 0.5m3Under the conditions of/min, throttling eyelet 4mm, the throttling of variable cross-section section 200mm are led
Lead device, by continuous oil pipe analyze software CTS calculate the chock pressure difference of this throttling traction apparatus and pull strength be respectively 73.01MPa and
104.44kN, according to entering property load-up condition under tubular buckling, it is desirable to enters dynamic load(loading) under coiled tubing and should be greater than friction self-locking load
2 times (under enter loading coefficient) of lotus, and the pull strength of this throttling traction apparatus (104.44kN) is divided by coiled tubing self-locking load
(49.38kN) loading coefficient 2 is entered, so this throttling traction apparatus is to play throttling traction function equal under 2.11 ＞ regulations
's.
During practice of construction, utilize this throttling traction apparatus that coiled tubing is sent to cement plug 3254m really later
Position, and carried out normal brill plug operation.This shows that the throttling traction apparatus of design is all consistent in theory and practice,
There is preferable practicality.
Table 1 different length throttling drafting tool chock pressure difference and pull strength value of calculation
| Length/mm | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 |
| Chock pressure difference/MPa | 52.78 | 62.89 | 73.01 | 83.13 | 93.25 | 103.37 | 113.49 | 123.61 |
| Pull strength/kN | 75.50 | 89.96 | 104.44 | 118.92 | 133.40 | 147.87 | 162.35 | 176.82 |
Embodiment 4:
Coiled tubing throttling traction apparatus is applied in coiled tubing drilling out, bridging plug work progress by the present embodiment.Pass through
The chock pressure difference utilizing fluid to produce when flowing through variable cross-section section 4, acts on and produces on this throttling traction apparatus variable cross-section section 4 annulus area
Raw sizable thrust (pull strength), drive coiled tubing to continue to creep into and under enter predetermined cement plug, bridging plug position, just carrying out
Normal brill plug construction.
In sum, the present invention retractor structures that throttles is simple, and easy to use, pull strength is big, and assist is notable, solves
Cannot creep into due to self-locking during current horizontal well coiled tubing drilling out, bridging plug, under the problem that enters.Overcome existing
Retractor structures is complicated and poor reliability, and down-hole frictional resistance is relatively big, under enter and take out difficult, the pressure of the drill to be difficult to the defects such as applying.
In the present embodiment, coiled tubing analyzes software (CTS) for row coiled tubing software known in the industry, above each enforcement
Method of testing and structure that example describes the most in detail belong to the known of the industry or common technology, describe the most one by one.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, all
It is within design same or analogous with the present invention belongs to protection scope of the present invention.
Claims (8)
1. a coiled tubing throttling traction apparatus, it is characterised in that: include that body (1), described body (1) they are that variable cross-section is straight
Pipe, this variable cross-section straight tube includes rate of flow of fluid energy dissipation pipeline section (3) being located at two ends and is located at the variable cross-section section (4) at middle part,
Described rate of flow of fluid energy dissipation pipeline section (3) internal diameter is more than variable cross-section section (4) internal diameter.
A kind of coiled tubing throttling traction apparatus the most according to claim 1, it is characterised in that: described variable cross-section section (4)
Inwall is provided with throttling anti-wearing liner (2).
A kind of coiled tubing throttling traction apparatus the most according to claim 1, it is characterised in that: described two ends rate of flow of fluid
Energy dissipation pipeline section (3) total length is 0.625 ~ 1.5 with the ratio of variable cross-section section (4) length.
A kind of coiled tubing throttling traction apparatus the most according to claim 1, it is characterised in that: described rate of flow of fluid energy
Dissipation pipeline section (3) internal diameter and variable cross-section section (4) internal diameter ratio are 4-5.
A kind of coiled tubing throttling traction apparatus the most according to claim 2, it is characterised in that: described throttling anti-wearing liner
(2) thickness is 5-7mm.
A kind of coiled tubing throttling traction apparatus the most according to claim 2, it is characterised in that: described throttling anti-wearing liner
(2) material is hard alloy tungsten carbide.
A kind of coiled tubing throttling traction apparatus the most according to claim 1, it is characterised in that: the fluid stream at described two ends
Speed energy dissipation pipeline section (3) is equipped with screw thread.
8. a coiled tubing application for throttling traction apparatus, leads coiled tubing throttling described in any one of claim 1-7
Lead device is applied in coiled tubing drilling out, bridging plug work progress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671141.5A CN106089137A (en) | 2016-08-16 | 2016-08-16 | A kind of coiled tubing throttling traction apparatus and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610671141.5A CN106089137A (en) | 2016-08-16 | 2016-08-16 | A kind of coiled tubing throttling traction apparatus and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089137A true CN106089137A (en) | 2016-11-09 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610671141.5A Pending CN106089137A (en) | 2016-08-16 | 2016-08-16 | A kind of coiled tubing throttling traction apparatus and application thereof |
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| CN (1) | CN106089137A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060675A (en) * | 2017-05-22 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground hydraulic pressure drives turbocharging tractor |
| CN108086933A (en) * | 2016-11-21 | 2018-05-29 | 中国石油天然气股份有限公司 | For the cable conveying device of horizontal well |
| CN115324550A (en) * | 2022-08-09 | 2022-11-11 | 中国石油天然气集团有限公司 | Hydraulic coiled tubing dragging fracturing tool and technological method |
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| US4913227A (en) * | 1987-05-07 | 1990-04-03 | Institut Francais Du Petrole | Equipment for a drill pipe string including a side entry sub, a safety member for anchoring a cable on a support, and a method of using the equipment |
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN104343404A (en) * | 2013-07-26 | 2015-02-11 | 中国石油化工股份有限公司 | Peristaltic downhole tractor |
| CN104405321A (en) * | 2014-10-21 | 2015-03-11 | 中国石油天然气集团公司 | Drilling pressure pushing pressurizer |
| CN205400695U (en) * | 2016-02-26 | 2016-07-27 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Choke manifold is fixed glib with resistant erosion |
| CN205918387U (en) * | 2016-08-16 | 2017-02-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing is with throttle tractor |
-
2016
- 2016-08-16 CN CN201610671141.5A patent/CN106089137A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4913227A (en) * | 1987-05-07 | 1990-04-03 | Institut Francais Du Petrole | Equipment for a drill pipe string including a side entry sub, a safety member for anchoring a cable on a support, and a method of using the equipment |
| CN102777145A (en) * | 2012-08-16 | 2012-11-14 | 中国石油大学(北京) | Electric control fluid drive coiled tubing downhole retractor |
| CN104343404A (en) * | 2013-07-26 | 2015-02-11 | 中国石油化工股份有限公司 | Peristaltic downhole tractor |
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| CN205918387U (en) * | 2016-08-16 | 2017-02-01 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Coiled tubing is with throttle tractor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086933A (en) * | 2016-11-21 | 2018-05-29 | 中国石油天然气股份有限公司 | For the cable conveying device of horizontal well |
| CN108086933B (en) * | 2016-11-21 | 2020-05-08 | 中国石油天然气股份有限公司 | Cable conveying device for horizontal well |
| CN107060675A (en) * | 2017-05-22 | 2017-08-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground hydraulic pressure drives turbocharging tractor |
| CN115324550A (en) * | 2022-08-09 | 2022-11-11 | 中国石油天然气集团有限公司 | Hydraulic coiled tubing dragging fracturing tool and technological method |
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Application publication date: 20161109 |