CN209179706U - A kind of fast salvaging oil/gas well casing bit - Google Patents
A kind of fast salvaging oil/gas well casing bit Download PDFInfo
- Publication number
- CN209179706U CN209179706U CN201821737515.XU CN201821737515U CN209179706U CN 209179706 U CN209179706 U CN 209179706U CN 201821737515 U CN201821737515 U CN 201821737515U CN 209179706 U CN209179706 U CN 209179706U
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- wirerope
- casing
- cramping body
- steel ball
- pieces
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Abstract
The utility model belongs to oil and gas development field of engineering technology, specifically a kind of fast salvaging oil/gas well casing bit.The problems such as that there are structures and technique is more complex, operation is time-consuming and laborious, operating cost is relatively high, is solved when salvaging oil gas casing, including ground lifting system and casing fishing tool, ground lifting system includes hoisting gear, pulley, wirerope and derrick, pulley is provided on derrick, wirerope is provided on pulley, wirerope one end is connect with hoisting gear, and the wirerope other end is connect with casing fishing tool；Casing fishing tool includes cramping body, cone tank and solid mesoporous steel ball, cramping body is provided with three pieces, the setting of three pieces cramping body back taper, cone tank is set among three pieces cramping body, cramping body top is provided with card slot body, cramping body lower end setting aid tooth, solid mesoporous steel ball are arranged in cone tank, and solid mesoporous steel ball is connect with wirerope.The utility model effectively prevent or reduces casing fishing process middle sleeve and slips accident.
Description
Technical field
The utility model belongs to oil and gas development field of engineering technology, specifically a kind of fast salvaging oil/gas well casing bit.
Background technique
During oil-gas field development and groundwater resources utilize, due to earthquake, reservoir stress, cementing quality, casing matter
The influence of the factors such as amount, burn into construction accident causes some oil gas, well that casing damage, bad break, obscission occurs, with
The intensification of oil-gas field development degree, casing damage almost become a kind of universal law.The breakage of casing so that oil gas, well without
Method normally produces, and has seriously affected oil gas, well development and utilization effect.For oil gas, well casing damage, fall off, bad break etc.
Down-hole accident, having developed a variety of casing fishing tools both at home and abroad, (such as returnable slip overshot, reversible slips are salvaged
Lance, fishing tap, box tap etc.).These casing fishing tool structures are more complex, operate time-consuming and laborious and operating process to match
Part workover treatment equipment is covered, operating cost is relatively high.
Summary of the invention
The utility model is more complex in order to which there are structures and technique when solving salvaging oil gas casing, it is time-consuming and laborious to operate,
The problems such as operating cost is relatively high provides a kind of fast salvaging oil/gas well casing bit.
The utility model takes following technical scheme: a kind of fast salvaging oil/gas well casing bit, including ground promotes system
System and casing fishing tool, ground lifting system includes hoisting gear, pulley, wirerope and derrick, is provided with pulley on derrick,
Wirerope is provided on pulley, wirerope one end is connect with hoisting gear, and the wirerope other end is connect with casing fishing tool；Set
Pipe fishing tool includes cramping body, cone tank and solid mesoporous steel ball, and cramping body is provided with three pieces, and three pieces cramping body back taper is set
It sets, cone tank is set among three pieces cramping body, cramping body top is provided with card slot body, and setting aid tooth in cramping body lower end is solid
Mesoporous steel ball is arranged in cone tank, and solid mesoporous steel ball is connect with wirerope.
Specific construction technique is as follows:
Before casing fishing, hole is passed through by the wirerope of casing fishing tool in wirerope one end and casing salvages work
Solid mesoporous steel ball connection in tool, provides drag force for shifting up for steel ball.Fixed derrick is installed in well head, and in derrick
Upper installation pulley, then wirerope is connected on winch by pulley.When casing fishing, casing fishing tool is led to first
It crosses in the lifting system lower going-into-well of ground until firm set on the casing for needing to salvage, then starting ground lifting system is upward
Wirerope is pulled, solid mesoporous steel ball is displaced under the conditions of wirerope pulls upwards along cone tank upward sliding, and then struts three
Piece cramping body, clamping tooth is close to internal surface of sleeve pipe at this time, with continuing working for landing ground lifting system, the final salvaging for realizing casing
Operation.
Compared with prior art, the utility model has the advantage that
(1) reverse taper trisection cramping body and the design of barb-like clamping tooth can salvage for casing and provide firm clamping effect
Fruit effectively prevent or reduces casing fishing process middle sleeve and slips accident, ensures construction effect.
(2) cone tank variable diameter principle is utilized, powerful chucking power is easily provided.It is high that ground lifting system pulls solid mesoporous
Intensity steel ball, into upper displacement process, realizes the opening of casing fishing tool cramping body and to internal surface of sleeve pipe in cone tank easily
Clamping.Steel ball shifted up in cone tank it is bigger, be salvaged casing suffered by chucking power it is bigger.
(3) structure and process optimization have been carried out to casing fishing tool, greatly reduce purchase/manufacturing cost, operation at
This, increases the operability and application of technique.
Detailed description of the invention
Fig. 1 is fast salvaging oil gas casing flow sheet；
Fig. 2 is fast salvaging oil/gas well sleeve tool structural schematic diagram；
Fig. 3 is that fishing tool sets casing schematic diagram；
Fig. 4 is fishing tool grip sleeve schematic diagram；
1. hoisting gear in figure；2. pulley；3. wirerope；4. derrick；5. fishing tool；6. well head；7. the borehole wall；8. well cementation
Cement sheath；9. the casing that need to be salvaged；11- wirerope passes through hole；15- card slot body；21. cone tank；22. solid mesoporous steel ball；23.
Cramping body；25. clamping tooth.
Specific embodiment
A kind of fast salvaging oil/gas well casing bit, including ground lifting system and casing fishing tool 5, as shown in Figure 1,
Ground lifting system includes hoisting gear 1, pulley 2, wirerope 3 and derrick 4, and pulley 2 is provided on derrick 4, is arranged on pulley 2
There is wirerope 3,3 one end of wirerope is connect with hoisting gear 1, and 3 other end of wirerope is connect with casing fishing tool 5.
As shown in Figure 2,3, 4, casing fishing tool includes cramping body 23, cone tank 21 and solid mesoporous steel ball 22, clamping
Body 23 is provided with three pieces, and 23 back taper of three pieces cramping body is arranged, setting cone tank 21 among three pieces cramping body 23, on cramping body 23
Portion is provided with card slot body 15, and 23 lower end of cramping body setting aid tooth 25, solid mesoporous steel ball 22 is arranged in cone tank 21, solid
Mesoporous steel ball 22 is connect with wirerope 3.
When casing fishing, casing fishing tool is connect with ground lifting system first, and by ground lifting system
Being set on needing the casing salvaged until consolidating (referring to Fig. 3) in casing fishing tool lower going-into-well, then promoted by ground
System pulls casing fishing tool upwards, and solid mesoporous steel ball is under the conditions of wirerope pulls upwards along 21 upward sliding of cone tank
Displacement, and then three pieces cramping body (such as Fig. 4) is strutted, clamping tooth is close to internal surface of sleeve pipe at this time, with continuing for landing ground lifting system
Work, the final fishing for realizing casing.
Claims (1)
1. a kind of fast salvaging oil/gas well casing bit, it is characterised in that: including ground lifting system and casing fishing tool
(5),
Ground lifting system includes hoisting gear (1), pulley (2), wirerope (3) and derrick (4), and derrick is provided with cunning on (4)
It takes turns (2), is provided with wirerope (3) on pulley (2), wirerope (3) one end is connect with hoisting gear (1), wirerope (3) other end
It is connect with casing fishing tool (5)；
Casing fishing tool includes cramping body (23), cone tank (21) and solid mesoporous steel ball (22), and cramping body (23) is provided with
Three pieces, the setting of three pieces cramping body (23) back taper, three pieces cramping body (23) is intermediate to be arranged cone tank (21), cramping body (23) top
It is provided with card slot body (15), cramping body (23) lower end setting aid tooth (25), solid mesoporous steel ball (22) is arranged in cone tank
(21) in, solid mesoporous steel ball (22) connect with wirerope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821737515.XU CN209179706U (en) | 2018-10-25 | 2018-10-25 | A kind of fast salvaging oil/gas well casing bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821737515.XU CN209179706U (en) | 2018-10-25 | 2018-10-25 | A kind of fast salvaging oil/gas well casing bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209179706U true CN209179706U (en) | 2019-07-30 |
Family
ID=67362188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821737515.XU Active CN209179706U (en) | 2018-10-25 | 2018-10-25 | A kind of fast salvaging oil/gas well casing bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209179706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021077550A1 (en) * | 2019-10-25 | 2021-04-29 | 山西省平遥减速器有限责任公司 | High-precision bailing-type oil-pumping unit for petroleum exploitation |
-
2018
- 2018-10-25 CN CN201821737515.XU patent/CN209179706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021077550A1 (en) * | 2019-10-25 | 2021-04-29 | 山西省平遥减速器有限责任公司 | High-precision bailing-type oil-pumping unit for petroleum exploitation |
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