CN111305782A - Hydraulic crusher for cement ring outside oil well casing - Google Patents
Hydraulic crusher for cement ring outside oil well casing Download PDFInfo
- Publication number
- CN111305782A CN111305782A CN202010319738.XA CN202010319738A CN111305782A CN 111305782 A CN111305782 A CN 111305782A CN 202010319738 A CN202010319738 A CN 202010319738A CN 111305782 A CN111305782 A CN 111305782A
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- CN
- China
- Prior art keywords
- pipe
- hydraulic
- cutting
- oil well
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004568 cement Substances 0.000 title claims abstract description 35
- 239000003129 oil well Substances 0.000 title claims abstract description 35
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 15
- 238000005553 drilling Methods 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims 6
- 239000002344 surface layer Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 230000002706 hydrostatic effect Effects 0.000 abstract description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 239000011396 hydraulic cement Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Images
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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
-
- 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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
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
A hydraulic crusher for cement rings outside oil well casings comprises a guide pipe, a surface casing pipe, a technical casing pipe, an oil layer casing pipe, a cement ring, a hinge pin shaft, a steel pipe clamp, a connecting shaft sleeve flange, a multi-tooth drill bit and a hydraulic oil cylinder, wherein the guide pipe, the surface casing pipe, the technical casing pipe, the oil layer casing pipe and the cement ring are sequentially arranged; the invention is suitable for the outer cement ring crushing construction of the ocean lodging oil well casing, and has the advantages of simple operation, high efficiency and low cost; the high-degree modular combination is adopted, the modules are connected through the hinge pin shaft, and the cement sheath with a certain length can be cut off through the combination of different numbers of the modules; the hydraulic drive is full, no vibration, hydrostatic radial construction, and no influence on the oil well and well structure.
Description
Technical Field
The invention belongs to the technical field of crushing of outer cement rings of oil well casings of petroleum and natural gas, and particularly relates to a hydraulic crusher for outer cement rings of oil well casings.
Background
In the marine drilling process, the well mouth falls down due to extreme weather such as storm surge, the well mouth casing pipe is broken or falls off, and mortar is filled in the oil pipe and the annular space of each layer of casing pipe for temporary plugging in order to prevent oil spill expansion. Because the early temporary disposal measure of the lodging well of the well group has the property of emergency rescue, the plugging of a hydrocarbon reservoir is not carried out, the cutting of a well mouth 4 meters below the mud surface is not carried out, the requirements of the existing 'fine rule for marine oil safety management' 85 th article on the squeeze plugging of the hydrocarbon reservoir of the permanent abandoned well are not met, and the requirements of the current and the current laws and regulations are not met, and the lodging well group needs to be subjected to well plugging again for treatment.
Re-shut-in requires cutting of the horizontal section of the lodging to reduce the dry-type working cabin area. Because of the oil gas pressure in the lodging oil well, in order to prevent the direct cutting of the horizontal section of the oil well from generating crude oil leakage and blowout, the layer-by-layer cutting monitoring is needed. How to crush and peel off the cement sheath outside each layer of casing is a construction difficulty, so the development of the hydraulic crusher device for the cement sheath outside the oil well casing is necessary.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides an oil well casing outer cement ring hydraulic crusher, which adopts the technical scheme that: the hydraulic crusher comprises a guide pipe, a surface casing pipe, a technical casing pipe, an oil layer casing pipe, a cement ring, a hinge pin shaft, a steel pipe clamp, a connecting shaft sleeve flange, a multi-tooth drill bit and a hydraulic oil cylinder, wherein the guide pipe, the surface casing pipe, the technical casing pipe, the oil layer casing pipe and the cement ring are sequentially arranged, the steel pipe clamp fixes a hydraulic crusher module at two ends of the guide pipe, the hydraulic crusher module comprises the connecting shaft sleeve flange, the multi-tooth drill bit and the hydraulic oil cylinder, the connecting shaft sleeve flange is hinged through the hinge pin shaft, and the multi-tooth drill bit is installed at one end of the hydraulic oil cylinder.
The hydraulic oil cylinder, the connecting shaft sleeve flange and the multi-tooth drill bit are multiple.
Performing annular cutting and horizontal cutting on the oil well guide pipe by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher module at two ends of the guide pipe by using a steel pipe clamping clamp; the hydraulic crusher module comprises a connecting shaft sleeve flange, a multi-tooth drill bit and a hydraulic oil cylinder, wherein the connecting shaft sleeve flange is hinged through a hinge pin shaft; providing pressure for a plurality of hydraulic oil cylinders of the crusher through a power source, directly driving the multi-tooth drill bit by the hydraulic oil cylinders, and extruding a first layer of cement sheath outside the oil well casing to crush and peel the cement sheath; performing annular cutting and horizontal cutting on the oil well surface casing by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher module at two ends of the guide pipe by using a steel pipe clamping clamp; the second layer of cement sheath is broken and peeled off; performing annular cutting and horizontal cutting on the oil well technical casing by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher module at two ends of the guide pipe by using a steel pipe clamping clamp; crushing and stripping the third layer of cement sheath; and performing annular cutting and horizontal cutting on the oil layer casing of the oil well by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1m, and the cutting of the oil well is finished.
The invention is suitable for the outer cement ring crushing construction of the ocean lodging oil well casing, and has the advantages of simple operation, high efficiency and low cost; the high-degree modular combination is adopted, the modules are connected through the hinge pin shaft, and the cement sheath with a certain length can be cut off through the combination of different numbers of the modules; the hydraulic drive is full, no vibration, hydrostatic radial construction, and no influence on the oil well and well structure.
Drawings
FIG. 1 is a front view of a hydraulic cement sheath breaker of the present invention.
Fig. 2 is a top view of the hydraulic cement sheath breaker of the present invention.
In the figure: the drill bit comprises a guide pipe 1, a surface casing pipe 2, a technical casing pipe 3, an oil layer casing pipe 4, a cement ring 5, a hinge pin 6, a steel pipe clamp 7, a connecting shaft sleeve flange 8, a multi-tooth drill bit 9 and a hydraulic oil cylinder 10.
Detailed Description
In order to make the technical solution of the present invention more comprehensive, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
The utility model provides an oil well casing outer cement ring hydraulic breaker, includes pipe 1, top layer sleeve pipe 2, technical casing 3, oil layer sleeve pipe 4, cement sheath 5, articulated round pin axle 6, steel pipe card pipe clamp 7, connecting sleeve flange 8, multi-tooth bore bit 9, hydraulic cylinder 10, pipe 1, top layer sleeve pipe 2, technical casing 3, oil layer sleeve pipe 4, cement sheath 5 arrange in proper order, steel pipe card pipe clamp 7 fix hydraulic breaker module at pipe 1 both ends, hydraulic breaker module include connecting sleeve flange 8, multi-tooth bore bit 9, hydraulic cylinder 10, connecting sleeve flange 8 articulate through articulated round pin axle 6, multi-tooth bore bit 9 is installed to hydraulic cylinder 10 one end.
The hydraulic oil cylinder 10, the connecting shaft sleeve flange 8 and the multi-tooth drill bit 9 are multiple.
Performing annular cutting and horizontal cutting on the oil well guide pipe 1 by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe 1 by using a steel pipe clamping clamp 7; the hydraulic crusher module comprises a connecting shaft sleeve flange 8, a multi-tooth drill bit 9 and a hydraulic oil cylinder 10, wherein the connecting shaft sleeve flange 8 is hinged through a hinge pin 6; providing pressure for a plurality of hydraulic oil cylinders 10 of the crusher through a power source, directly driving a multi-tooth drill bit 9 by the hydraulic oil cylinders 10, and extruding a first layer of cement sheath 5 outside a casing pipe of the oil well to crush and peel the casing pipe; performing annular cutting and horizontal cutting on the oil well surface casing 2 by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe 1 by using a steel pipe clamping clamp 7; the second layer of cement sheath 5 is broken and peeled off; performing annular cutting and horizontal cutting on the oil well technical casing 3 by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe 1 by using a steel pipe clamping clamp 7; crushing and stripping the third layer of cement sheath 5; and (3) performing circular cutting and horizontal cutting on the oil layer casing 4 of the oil well by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1m, and the oil well cutting is finished.
Claims (3)
1. The utility model provides an oil well casing outer cement ring hydraulic breaker, includes pipe (1), top casing (2), technical casing (3), oil layer sleeve pipe (4), cement sheath (5), articulated round pin axle (6), steel pipe strap clamp (7), connecting sleeve flange (8), multi-tooth bore bit (9), hydraulic cylinder (10), its characterized in that: the pipe (1), the surface layer sleeve (2), the technical sleeve (3), the oil layer sleeve (4) and the cement sheath (5) are sequentially arranged, the steel pipe clamp (7) fixes the hydraulic crusher module at two ends of the pipe (1), the hydraulic crusher module comprises a connecting shaft sleeve flange (8), a multi-tooth drill bit (9) and a hydraulic oil cylinder (10), the connecting shaft sleeve flange (8) is hinged through a hinged pin shaft (6), and the multi-tooth drill bit (9) is installed at one end of the hydraulic oil cylinder (10).
2. The hydraulic breaker for cement rings outside oil well casings of claim 1, characterized in that: the hydraulic oil cylinder (10), the connecting shaft sleeve flange (8) and the multi-tooth drill bit (9) are multiple.
3. The hydraulic breaker for cement rings outside oil well casings of claim 1, characterized in that: performing annular cutting and horizontal cutting on the oil well guide pipe (1) by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe (1) by using a steel pipe clamp (7); the hydraulic crusher module comprises a connecting shaft sleeve flange (8), a multi-tooth drill bit (9) and a hydraulic oil cylinder (10), wherein the connecting shaft sleeve flange (8) is hinged through a hinge pin shaft (6); a power source provides pressure for a plurality of hydraulic oil cylinders (10) of the crusher, the hydraulic oil cylinders (10) directly drive a multi-tooth drill bit (9), and a first layer of cement sheath (5) outside a casing pipe of the oil well is extruded to crush and peel the casing pipe; performing annular cutting and horizontal cutting on the oil well surface casing (2) by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe (1) by using a steel pipe clamp (7); the second layer of cement sheath (5) is broken and peeled off; performing annular cutting and horizontal cutting on the oil well technical casing (3) by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1 m; fixing the hydraulic crusher modules at two ends of the guide pipe (1) by using a steel pipe clamp (7); crushing and stripping the third layer of cement sheath (5); and (3) performing annular cutting and horizontal cutting on the oil layer casing (4) of the oil well by using a horizontal drilling and milling pipe cutting machine, wherein the cutting length is 1m, and the oil well cutting is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319738.XA CN111305782A (en) | 2020-04-22 | 2020-04-22 | Hydraulic crusher for cement ring outside oil well casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010319738.XA CN111305782A (en) | 2020-04-22 | 2020-04-22 | Hydraulic crusher for cement ring outside oil well casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111305782A true CN111305782A (en) | 2020-06-19 |
Family
ID=71152202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010319738.XA Pending CN111305782A (en) | 2020-04-22 | 2020-04-22 | Hydraulic crusher for cement ring outside oil well casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111305782A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178327A (en) * | 2022-06-30 | 2022-10-14 | 北京博德世达石油技术股份有限公司 | Eccentric roller sleeve outer cement sheath crusher |
| CN116146133A (en) * | 2023-04-19 | 2023-05-23 | 西南石油大学 | High-frequency resonance type cement sheath crushing tool for assisting sleeve recovery |
-
2020
- 2020-04-22 CN CN202010319738.XA patent/CN111305782A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178327A (en) * | 2022-06-30 | 2022-10-14 | 北京博德世达石油技术股份有限公司 | Eccentric roller sleeve outer cement sheath crusher |
| CN116146133A (en) * | 2023-04-19 | 2023-05-23 | 西南石油大学 | High-frequency resonance type cement sheath crushing tool for assisting sleeve recovery |
| CN116146133B (en) * | 2023-04-19 | 2023-06-23 | 西南石油大学 | High-frequency resonance type cement sheath crushing tool for assisting sleeve recovery |
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