CN201292818Y - Integral hydraulic cement basket - Google Patents
Integral hydraulic cement basket Download PDFInfo
- Publication number
- CN201292818Y CN201292818Y CN 200820218772 CN200820218772U CN201292818Y CN 201292818 Y CN201292818 Y CN 201292818Y CN 200820218772 CN200820218772 CN 200820218772 CN 200820218772 U CN200820218772 U CN 200820218772U CN 201292818 Y CN201292818 Y CN 201292818Y
- Authority
- CN
- China
- Prior art keywords
- lifting sub
- packing element
- threaded
- inner sheath
- blind plate
- 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.)
- Expired - Fee Related
Links
- 239000011396 hydraulic cement Substances 0.000 title abstract 3
- 238000012856 packing Methods 0.000 claims abstract description 14
- 238000003801 milling Methods 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000005728 strengthening Methods 0.000 claims description 9
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract 2
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 6
- 239000010985 leather Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 206010024453 Ligament sprain Diseases 0.000 description 1
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to an integrated hydraulic cement basket used for a well completion tool of petroleum, geological exploration and development horizontal drilling wells and a sidetracking well. The integrated hydraulic cement basket comprises a lifting sub, a body, a drillable blind plate, an internal jacket, a sliding key, an elastic stabilizing piece and an expandable packing element; screw threads are arranged at the upper end and the lower end of the lifting sub, wherein the upper end of the lifting sub is in threaded connection with an intermediate casing, a lower joint of the lifting sub is in threaded connection with the body, and the body is provided with 2-6 long grooves, shear pins and unscrewing-prevention mechanisms; the lower end of the lifting sub is in threaded connection with a sieve tube; the internal jacket is provided with a milling groove matched with the body and a locking mechanism corresponding to the body; the sliding key takes the shape of a knife, wherein a knife body is internally arranged in the milling groove of the internal jacket, and a long handle is horizontally arranged on the body; the internal jacket is also provided with the drillable blind plate which is arranged in the body after being connected by screw threads and being fixed by a clamp hoop and is fixed by the shear pin, and the elastic stabilizing piece, the expandable packing element and the expandable packing element are arranged on an outer barrel of the body and fixed by a fixed sleeve. The utility model solves the problems that the cement basket is worn out easily and the risk of stratum leakage happens in the prior art, thereby being widely used in the well completion tool of the lateral drilling well and the horizontal drilling.
Description
Technical field:
The utility model relates to the integral type hydraulic cementing basket that horizontal drilling in a kind of oil, geological prospecting and the exploitation, sidetracked hole completion tool are used.
Background technology:
Along with people to the deepening continuously of oil layer protection understanding, oil reservoir well section directly adopts sieve tube completion, it is more and more that top adopts the well cementation completion promptly to go up the solid completion mode of hanging down.Live cement paste for support and reduce fluid pressure, prevent from that the cement paste leakage is low to return and the contaminated oil gas-bearing formation, often use basket, leather cup, external packer of pipe the understratum.Because going into the well, conventional basket is in open mode all the time in the process, can cause the down-hole surge pressure excessive, easily have and press the risk of leaking the stratum, or be lowered in the process with wall friction have that umbrella galled may, simultaneously basket opens by self spring leaf elastic force, can especially open fully at the horizontal well horizontal segment after putting in place, support be lived in portion's cement sheath or problem, and leather cup also is often to be used; The outside dimension of leather cup is prone to the pipe string and is lowered to difficulty near borehole size in the construction of horizontal well especially sidetracked hole, umbrella has presses the risk of leaking the stratum; Can fluid power single packing element that press to expand cuts off mode (packer) the part smooth opening under the situation of being obstructed at the construction field (site), reach actual partition effect, support is lived in portion's cement also needs further check.
The utility model content:
The purpose of this utility model provides a kind of integral type hydraulic cementing basket, and it has solved the conventional basket that exists in the prior art and has gone into the well and be in open mode in the process, can cause the down-hole surge pressure excessive, easily has and presses the risk of leaking the stratum; Use leather cup.Can the bloated single packing element (packer) of fluid power pressure be opened under being obstructed situation in the part, reaches the problem of actual partition effect.
The technical scheme that its technical problem that solves the utility model adopts is: the integral type hydraulic cementing basket, by lifting sub, body, can bore blind plate, inner sheath, slide key, elasticity body resistance-strengthening tablets, expansible packing element and form, the lifting sub upper and lower end is provided with screw thread, the upper end is threaded with protective casing for the cover pipe thread, and lower contact is threaded with body; Body is provided with elongated slot that 2-6 mills and shear pin, anti-back deduction structure, the lifting sub lower end is threaded with screen casing, inner sheath is provided with the groove milling that is complementary with body, with the corresponding retaining mechanism of body, slide key is the cutter shape, and cutter hub is built in the groove milling of inner sheath, long handle crouches on body, inner sheath does not also have to bore the mechanism of blind plate, can be to be threaded or to be placed in the body after fixing with clip, fixes by shear pin; Elasticity body resistance-strengthening tablets, expansible packing element are contained on the body urceolus and fix with fixed cover.During use with this basket down to the design well depth, sprain to press and cut off pin, can bore blind plate as piston, by inner sheath motive force is passed on the built-in slide key within it, again it is delivered to the elasticity body resistance-strengthening tablets,
On the expansible packing element. expansible packing element distending, the elasticity body resistance-strengthening tablets is upspring, and finishes sleeve pipe and sets upright and open basket work.A kind of sleeve body of directly utilizing that the utility model provides is as fluid cylinder, and blind plate can overcome the powerful thrust of the friction that contacts with the stratum as piston, safe and reliable, has that sleeve pipe is set upright, the integral type cement umbrella of support cement paste function.This instrument is particularly suitable for the well cementation of horizontal well, sidetracked hole, extended reach well.
The beneficial effects of the utility model are, the entire outer diameter of this instrument is suitable with institute's setting of casing box cupling size, and it is smooth to guarantee that instrument is gone into well; Directly with body as fluid cylinder, blind plate is as piston, the hydraulic drive power of generation is the hundreds of times of conventional external fluid cylinder, working thrust can reach tens of ton, thrust is powerful, can overcome the friction with the stratum, and is safe and reliable; Kit is gone into the well and is closed condition in the process, has the function of setting upright after opening, and uprighting force is conventional hundreds of times; Be applicable to extended reach well, sidetracked hole completion.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure, 1, lifting sub, 2, body, 3, can bore blind plate, 4, inner sheath, 5, slide key, 6, the elasticity body resistance-strengthening tablets, 7, the expansible packing element.
The specific embodiment:
In the accompanying drawings, the integral type hydraulic cementing basket, by lifting sub 1, body 2, can bore blind plate 3, inner sheath 4, slide key 5, elasticity body resistance-strengthening tablets 6, expansible packing element 7 and form, lifting sub 1 upper and lower end is provided with screw thread, the upper end is threaded with protective casing for the cover pipe thread, and lower contact is threaded with body 2; Body 2 is provided with elongated slot that 2-6 mills and shear pin, anti-back deduction structure, lifting sub 1 lower end is threaded with screen casing, inner sheath 4 is provided with the groove milling that is complementary with body 2, with body 2 corresponding retaining mechanisms, slide key 5 is the cutter shape, and cutter hub is built in the groove milling of inner sheath 4, and long handle crouches on body 2, inner sheath 4 does not also have to bore blind plate 3 for being threaded or being placed in the body 2 after fixing with clip, fixes by shear pin; Elasticity body resistance-strengthening tablets 6, expansible packing element 7 are contained in body 2 urceolus and fix with fixed cover.
Claims (1)
1, a kind of integral type hydraulic cementing basket, by lifting sub (1), body (2), can bore blind plate (3), inner sheath (4), slide key (5), elasticity body resistance-strengthening tablets (6), expansible packing element (7) and form, it is characterized in that: lifting sub (1) upper and lower end is provided with screw thread, the upper end is threaded with protective casing for the cover pipe thread, and lower contact is threaded with body (2); Body (2) is provided with elongated slot that 2-6 mills and shear pin, anti-back deduction structure, lifting sub (1) lower end is threaded with screen casing, inner sheath (4) is provided with the groove milling that is complementary with body (2), with the corresponding retaining mechanism of body (2), slide key (5) is the cutter shape, and cutter hub is built in the groove milling of inner sheath (4), and long handle crouches on body (2), inner sheath (4) does not also have to bore blind plate (3) for being threaded or being placed in the body (2) after fixing with clip, fixes by shear pin; Elasticity body resistance-strengthening tablets (6), expansible packing element (7) are contained in body (2) urceolus and fix with fixed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820218772 CN201292818Y (en) | 2008-10-30 | 2008-10-30 | Integral hydraulic cement basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820218772 CN201292818Y (en) | 2008-10-30 | 2008-10-30 | Integral hydraulic cement basket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201292818Y true CN201292818Y (en) | 2009-08-19 |
Family
ID=41006294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820218772 Expired - Fee Related CN201292818Y (en) | 2008-10-30 | 2008-10-30 | Integral hydraulic cement basket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201292818Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204207A (en) * | 2017-12-14 | 2018-06-26 | 中国石油天然气股份有限公司 | Sand Control Completion String |
| CN113898314A (en) * | 2021-10-18 | 2022-01-07 | 中国石油化工股份有限公司 | Quick drilling type sitting and squeezing integrated temporary plugging device |
-
2008
- 2008-10-30 CN CN 200820218772 patent/CN201292818Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108204207A (en) * | 2017-12-14 | 2018-06-26 | 中国石油天然气股份有限公司 | Sand Control Completion String |
| CN113898314A (en) * | 2021-10-18 | 2022-01-07 | 中国石油化工股份有限公司 | Quick drilling type sitting and squeezing integrated temporary plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20111030 |