CN203925379U - Gas underbalance Sleeve drill completion expansion tube - Google Patents
Gas underbalance Sleeve drill completion expansion tube Download PDFInfo
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- CN203925379U CN203925379U CN201420314953.0U CN201420314953U CN203925379U CN 203925379 U CN203925379 U CN 203925379U CN 201420314953 U CN201420314953 U CN 201420314953U CN 203925379 U CN203925379 U CN 203925379U
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- pregroove marks
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Abstract
The utility model relates to completion unfreezing process units technical field, it is a kind of gas underbalance Sleeve drill completion expansion tube, it comprises the cylinder that expanded radially can occur, top at cylinder is fixed with top connection, bottom at cylinder is fixed with lower contact, in the outside of cylinder, has the outer pregroove marks of at least two circles from top to bottom along circumferentially-spaced.The utility model reasonable and compact in structure, easy to use, it is when drilling tool runs into lock of tool drilling, by swollen envelope cylinder, cylinder by there is expanded radially continues to creep into the drilling tool that is lowered to a little size class in well and carries out subsequent job, not only guaranteed carrying out in order of subsequent production operation, and can not destroy the achievement that precursor gas is bored, at completion phase, can meet the function of the sealing borehole wall again, bored direct swollen envelope completion after drilling depth, save drifting, setting of casing and well cementation supervisor, can directly set up production passage, shortened construction period.
Description
Technical field
the utility model relates to completion unfreezing process units technical field, is a kind of gas underbalance Sleeve drill completion expansion tube.
Background technology
gas underbalance well drilling completion mode mainly comprises barefoot completion, sieve tube completion and well cementation completion.In barefoot completion, easily occur that sand buries and the accident such as well slough producing the later stage; The relatively many completion mode of application are at present sieve tube completion, and in sieve tube completion, the technological deficiency of exposure is to implement selective layering fracturing reform; And well cementation completion has overcome the technological deficiency of barefoot completion and sieve tube completion simultaneously, but it weakens significantly the storage of gas underbalance well drilling completion and protects effect and make it at gas, bore in reservoir completions process application quantity seldom.Owing to being prone to the lock of tool drilling of cave-in initiation in During Air Drilling, and there is by jarring, bubble acid and the fluid conventional meanses such as top is logical that build the pressure the problem that is difficult to unfreezing, at present, in order to proceed to creep into, for lock of tool drilling, major part adopts by force the means such as back-off, backfill, sidetracking to solve lock of tool drilling, yet, adopt above means to carry out unfreezing and not only destroy the achievement that precursor gas is bored completely, make well track that variation has occurred, the well track of variation was produced and is brought a lot of inconvenience the later stage simultaneously.
Summary of the invention
the utility model provides a kind of gas underbalance Sleeve drill completion expansion tube, has overcome the deficiency of above-mentioned prior art, and its destruction precursor gas that can effectively solve existing unfreezing means existence is drilled to fruit and is produced to the problem bringing inconvenience the later stage.
the technical solution of the utility model realizes by following measures: a kind of gas underbalance Sleeve drill completion expansion tube, comprise the cylinder that expanded radially can occur, top at cylinder is fixed with top connection, bottom at cylinder is fixed with lower contact, outside at cylinder has the outer pregroove marks of at least two circles from top to bottom along circumferentially-spaced, the outer pregroove marks of each circle comprise at least two along circumferentially-spaced the outer pregroove marks outside the cylinder, inner side at cylinder has the interior pregroove marks of at least one circle from top to bottom along circumferentially-spaced, in each circle pregroove marks comprise at least two along circumferentially-spaced the interior pregroove marks in cylinder inner side, pregroove marks cylinder inner side between pregroove marks outside two of upper and lower correspondence in each, in top connection, there are internal thread or external screw thread, in lower contact, there are internal thread or external screw thread.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
the lateral cross section of above-mentioned cylinder can be the wavy of sealing, and outer pregroove marks is positioned at the trough outside of cylinder, and interior pregroove marks is positioned at the crest inner side of cylinder.
above-mentioned outer pregroove marks can be opening V-shaped outer pregroove marks also toward the outer side, and interior pregroove marks is that opening is towards inner side and V-shaped interior pregroove marks.
the outside of above-mentioned top connection can be intervally distributed with the upper pregroove marks of at least two along circumference, there is the lower pregroove marks of at least two inner side in lower contact along circumferentially-spaced, upper pregroove marks is opening V-shaped upper pregroove marks also toward the outer side, and lower pregroove marks is that opening is towards inner side and V-shaped lower pregroove marks.
the external diameter of above-mentioned cylinder can be 73mm to 508mm.
above-mentioned top connection can have internal thread, in lower contact, has external screw thread, on the top of cylinder by being welded with top connection, in the bottom of cylinder by being welded with lower contact.
the utility model reasonable and compact in structure, easy to use, it is when drilling tool runs into lock of tool drilling, by swollen envelope cylinder, cylinder by there is expanded radially continues to creep into the drilling tool that is lowered to a little size class in well and carries out subsequent job, not only guaranteed carrying out in order of subsequent production operation, and can not destroy the achievement that precursor gas is bored, at completion phase, can meet the function of the sealing borehole wall again, bored direct swollen envelope completion after drilling depth, save drifting, setting of casing and well cementation supervisor, can directly set up production passage, shortened construction period.
Accompanying drawing explanation
accompanying drawing 1 is looked half section structural representation for the master of the utility model most preferred embodiment.
accompanying drawing 2 is A-A place in accompanying drawing 1 analyses and observe structure for amplifying schematic diagram.
accompanying drawing 3 is B-B place in accompanying drawing 1 analyses and observe structure for amplifying schematic diagram.
accompanying drawing 4 is C-C place in accompanying drawing 1 analyses and observe structure for amplifying schematic diagram.
accompanying drawing 5 is D-D place in accompanying drawing 1 analyses and observe structure for amplifying schematic diagram.
coding in accompanying drawing is respectively: 1 is cylinder, and 2 is top connection, and 3 is lower contact, and 4 is outer pregroove marks, and 5 is interior pregroove marks, and 6 is upper pregroove marks, and 7 is lower pregroove marks.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1 to 5, this gas underbalance Sleeve drill completion expansion tube comprises the cylinder 1 that expanded radially can occur, on the top of cylinder 1, be fixed with top connection 2, in the bottom of cylinder 1, be fixed with lower contact 3, outside at cylinder 1 has the outer pregroove marks 4 of at least two circles from top to bottom along circumferentially-spaced, each circle outer pregroove marks 4 comprise at least two along circumferentially-spaced the outer pregroove marks 4 in cylinder 1 outside, inner side at cylinder 1 has the interior pregroove marks 5 of at least one circle from top to bottom along circumferentially-spaced, each circle in pregroove marks 5 comprise at least two along circumferentially-spaced the interior pregroove marks 5 in cylinder 1 inner side, pregroove marks 5 cylinder 1 inner side between pregroove marks 4 outside two of upper and lower correspondence in each, in top connection 2, there are internal thread or external screw thread, in lower contact 3, there are internal thread or external screw thread.By swollen envelope cylinder 1, cylinder 1 by there is expanded radially continues to creep into the drilling tool that is lowered to a little size class in well and carries out subsequent job, not only guaranteed carrying out in order of subsequent production operation, and can not destroy the achievement that precursor gas is bored, at completion phase, can meet the function of the sealing borehole wall again, bored direct swollen envelope completion after drilling depth, saved drifting, setting of casing and well cementation supervisor, can directly set up production passage, shortened construction period, upper and lower corresponding outer pregroove marks 4 and interior pregroove marks 5 are owing to being subject to the tensile force effect of cylinder 1, upper and lower corresponding outer pregroove marks 4 is torn and is made outer pregroove marks 4 tear into a strip hole with interior pregroove marks 5 with interior pregroove marks 5, this strip hole can enter as oil gas the passage of sleeve pipe, it is the production passage of oil gas.
can according to actual needs, above-mentioned gas underbalance Sleeve drill completion expansion tube be made further optimization and/or improvements:
as shown in accompanying drawing 1 to 5, the lateral cross section of cylinder 1 is the wavy of sealing, and outer pregroove marks 4 is positioned at the trough outside of cylinder 1, and interior pregroove marks 5 is positioned at the crest inner side of cylinder 1.
as shown in accompanying drawing 1 to 5, outer pregroove marks 4 is opening V-shaped outer pregroove marks 4 also toward the outer side, and interior pregroove marks 5 is that opening is towards inner side and V-shaped interior pregroove marks 5.The outer pregroove marks 4 of V-type and the interior pregroove marks 5 of V-type are convenient to outer pregroove marks 4 and interior pregroove marks 5 when being subject to the tensile force of cylinder 1, are easy to be torn that form can be as production of hydrocarbons passage after strip hole.
as shown in accompanying drawing 1 to 5, there is the upper pregroove marks 6 of at least two in outside in top connection 2 along circumferentially-spaced, there is the lower pregroove marks 7 of at least two inner side in lower contact 3 along circumferentially-spaced, upper pregroove marks 6 is opening V-shaped upper pregroove marks 6 also toward the outer side, and lower pregroove marks 7 is that opening is towards inner side and V-shaped lower pregroove marks 7.When expanded radially occurs for cylinder 1, also can there is opening by a small margin in upper pregroove marks 6 and lower pregroove marks 7, be further convenient to the formation of production of hydrocarbons passage.
as required, the external diameter of cylinder 1 is 73mm to 508mm.
as required, in top connection 2, have internal thread, in lower contact 3, have external screw thread, on the top of cylinder 1 by being welded with top connection 2, in the bottom of cylinder 1 by being welded with lower contact 3.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment: first, in gas drilling drilling tool bottom, be sequentially installed with drill collar from top to bottom, inflatable packer, the utility model and drill bit and other necessary less important work equipment, then, staging the pipe gaslift (gas-lift well section pressure is determined according to minimum strength Security Checking value of the present utility model) dry well, when down-hole meets after gas drilling condition, according to strength check the pressure of the drill of the present utility model and moment of torsion design drilling parameter, when drilling tool completes drilling depth, swollen envelope the utility model, the expansion that cylinder 1 is occurred radially, cylinder 1 external diameter after expansion overlaps with the broken circle of diameter maximum in accompanying drawing 2 or accompanying drawing 3, make it be close to the borehole wall (or last layer internal surface of sleeve pipe), upper and lower corresponding outer pregroove marks 4 and interior pregroove marks 5 are owing to being subject to the tensile force effect of cylinder 1, make upper and lower corresponding outer pregroove marks 4 tear with interior pregroove marks 5 and impel outer pregroove marks 4 to tear into a strip hole with interior pregroove marks 5, this strip hole can enter as oil gas the passage of sleeve pipe, pull out of hole and carry out follow-up relevant operation, when there is bit freezing, swollen envelope the utility model, the expansion that cylinder 1 is occurred radially, cylinder 1 external diameter after expansion overlaps with the broken circle of diameter maximum in accompanying drawing 2 or accompanying drawing 3, make it be close to the borehole wall (or last layer internal surface of sleeve pipe), the internal diameter of cylinder 1 increases, upper and lower corresponding outer pregroove marks 4 is torn and is made outer pregroove marks 4 tear into a strip hole with interior pregroove marks 5 with interior pregroove marks 5, and the drilling tool that is lowered to a little size class in the interior lateral well of the passage that this strip hole can enter sleeve pipe as oil gas by cylinder 1 continues to creep into and carries out subsequent job.
Claims (10)
1. a gas underbalance Sleeve drill completion expansion tube, it is characterized in that comprising the cylinder that expanded radially can occur, top at cylinder is fixed with top connection, bottom at cylinder is fixed with lower contact, outside at cylinder has the outer pregroove marks of at least two circles from top to bottom along circumferentially-spaced, the outer pregroove marks of each circle comprise at least two along circumferentially-spaced the outer pregroove marks outside the cylinder, inner side at cylinder has the interior pregroove marks of at least one circle from top to bottom along circumferentially-spaced, in each circle pregroove marks comprise at least two along circumferentially-spaced the interior pregroove marks in cylinder inner side, pregroove marks cylinder inner side between pregroove marks outside two of upper and lower correspondence in each, in top connection, there are internal thread or external screw thread, in lower contact, there are internal thread or external screw thread.
2. gas underbalance Sleeve drill completion expansion tube according to claim 1, is characterized in that the lateral cross section of cylinder is the wavy of sealing, and outer pregroove marks is positioned at the trough outside of cylinder, and interior pregroove marks is positioned at the crest inner side of cylinder.
3. gas underbalance Sleeve drill completion expansion tube according to claim 1 and 2, is characterized in that outer pregroove marks is opening V-shaped outer pregroove marks also toward the outer side, and interior pregroove marks is that opening is towards inner side and V-shaped interior pregroove marks.
4. gas underbalance Sleeve drill completion expansion tube according to claim 1 and 2, there is the upper pregroove marks of at least two in the outside that it is characterized in that top connection along circumferentially-spaced, there is the lower pregroove marks of at least two inner side in lower contact along circumferentially-spaced, upper pregroove marks is opening V-shaped upper pregroove marks also toward the outer side, and lower pregroove marks is that opening is towards inner side and V-shaped lower pregroove marks.
5. gas underbalance Sleeve drill completion expansion tube according to claim 3, there is the upper pregroove marks of at least two in the outside that it is characterized in that top connection along circumferentially-spaced, there is the lower pregroove marks of at least two inner side in lower contact along circumferentially-spaced, upper pregroove marks is opening V-shaped upper pregroove marks also toward the outer side, and lower pregroove marks is that opening is towards inner side and V-shaped lower pregroove marks.
6. gas underbalance Sleeve drill completion expansion tube according to claim 1 and 2, the external diameter that it is characterized in that cylinder is 73mm to 508mm.
7. gas underbalance Sleeve drill completion expansion tube according to claim 3, the external diameter that it is characterized in that cylinder is 73mm to 508mm.
8. gas underbalance Sleeve drill completion expansion tube according to claim 4, the external diameter that it is characterized in that cylinder is 73mm to 508mm.
9. gas underbalance Sleeve drill completion expansion tube according to claim 5, the external diameter that it is characterized in that cylinder is 73mm to 508mm.
10. gas underbalance Sleeve drill completion expansion tube according to claim 9, it is characterized in that top connection has internal thread, in lower contact, have external screw thread, on the top of cylinder by being welded with top connection, in the bottom of cylinder by being welded with lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314953.0U CN203925379U (en) | 2014-06-13 | 2014-06-13 | Gas underbalance Sleeve drill completion expansion tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314953.0U CN203925379U (en) | 2014-06-13 | 2014-06-13 | Gas underbalance Sleeve drill completion expansion tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925379U true CN203925379U (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314953.0U Expired - Fee Related CN203925379U (en) | 2014-06-13 | 2014-06-13 | Gas underbalance Sleeve drill completion expansion tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203925379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047562A (en) * | 2014-06-13 | 2014-09-17 | 中国石油集团西部钻探工程有限公司 | Gas underbalance casing drilling well completion expansion pipe |
-
2014
- 2014-06-13 CN CN201420314953.0U patent/CN203925379U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047562A (en) * | 2014-06-13 | 2014-09-17 | 中国石油集团西部钻探工程有限公司 | Gas underbalance casing drilling well completion expansion pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20210613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |