CN204827313U - Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula - Google Patents
Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula Download PDFInfo
- Publication number
- CN204827313U CN204827313U CN201520495175.4U CN201520495175U CN204827313U CN 204827313 U CN204827313 U CN 204827313U CN 201520495175 U CN201520495175 U CN 201520495175U CN 204827313 U CN204827313 U CN 204827313U
- Authority
- CN
- China
- Prior art keywords
- grinding body
- mandrel
- tail pipe
- dabber
- pipe milling
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a many sets of pressure system well tail pipe milling get through technical field, in particular to tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula. End screw thread connection guide pole at the bottom of the dabber of this instrument, spindle cover are equipped with the grinding body, and dabber upper portion outer wall is outer hexagonal face, and dabber lower part outer wall is the face of cylinder, and nimble motion under the spindle can be followed to the outer hexagonal face of dabber and the interior hexagonal wall phase -match of grinding body, grinding body, and the design of grinding body surface is the upper portion face of cylinder and the lower part conical surface, and grinding body surface welding -on has carbide and YD welding rod, and the grinding body is spacing with guide pole up end through the dabber step respectively from top to bottom. The utility model discloses a can reach the purpose of repairing the cover under the former well sheathed tube condition effectively not grinding partially, be particularly suitable for that the protective casing corrodes, the tail pipe milling under the cover change condition gets through the operation, simple structure, convenient to use reduces construction cost.
Description
Technical field:
The utility model relates to many cover pressure system well tail pipe milling diameter enlarging technical fields, particularly a kind of tail pipe milling diameter enlarging clutch type eccentric abrasion prevention instrument.
Background technology:
In recent years, along with block exploitation in buried hill enters the middle and later periods, original well pattern structure has been not suitable for payzone present situation, and large quantities of high-water-cut oil-producing well faces low yield, and OW faces the problems such as stopping production.In order to Remaining Oil output, usually on old casing basis, carry out sidetracked hole construction.But the side tracking technology of routine can not meet, and buried hill block oil-gas reservoir is buried deeply, pressure series of strata are many, change the difficult problems such as large, stratum is hard, abrasiveness is strong.Many covers pressure system well tail pipe milling diameter enlarging technology be by practice to combine with scientific research explore out for a kind of new technology of overlapping pressure system well more buried hill etc. and being formed, not only can avoid tail pipe top to window and face different pressures system or special formation (easy card stratum of easily collapsing) is windowed, reduced wellbore construction risk, the security risks such as the double-layer sleeve windowing that Slim Hole Sidetracking Technology faces is difficult, the easy swollen button of sidetracking construction high, the little drilling tool of pump pressure can also be solved.And can casing programme be simplified, increase completion tubular column size, be more conducive to the oil producing operation in later stage.Many covers pressure system well tail pipe milling diameter enlarging technology is transformed the OW of block many covers pressure systems such as buried hill, high water-cut well volume increase is significant.
Because protective casing burn into cover becomes; repair in cover process in the drifting in early stage of tail pipe milling diameter enlarging, repair cover milling cone and usually eccentric wear phenomenon can occur, cause side in advance to drive into into stratum; bring strata pressure and the unbalanced risk of wellbore pressure to construction, too increase construction cost simultaneously.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of tail pipe milling diameter enlarging clutch type eccentric abrasion prevention instrument, the arrangement achieves and can effectively reach the object of repairing cover when the former casing of not eccentric wear, be particularly suitable for the tail pipe milling diameter enlarging operation in protective casing burn into cover change situation, structure is simple, easy to use, reduce construction cost.Overcome existing cover milling cone of repairing and usually eccentric wear phenomenon can occur, cause side in advance to drive into into stratum, bring strata pressure and the unbalanced risk of wellbore pressure to construction, increase the deficiency of construction cost.
Technical solution adopted in the utility model is: a kind of tail pipe milling diameter enlarging clutch type eccentric abrasion prevention instrument, comprises mandrel; Mandrel bottom is threaded guide bar, mandrel is set with grinding body, mandrel external wall of upper portion is outer six aspects, mandrel bottom outer wall is the face of cylinder, outer six aspects of mandrel and interior six side's walls of grinding body match, and grinding body can along the upper and lower flexible motion of mandrel, and grinding body external surface is designed to Upper cylindrical face and lower tapered surface, grinding body external surface welding-on has carbide alloy and YD welding rod, grinding body up and down respectively by mandrel step and guide bar upper surface spacing.
The beneficial effects of the utility model are: the utility model can reach the object of repairing cover effectively when the former casing of not eccentric wear, be particularly suitable for the tail pipe milling diameter enlarging operation in protective casing burn into cover change situation, structure is simple, easy to use, reduces construction cost.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention:
As shown in Figure 1, a kind of tail pipe milling diameter enlarging clutch type eccentric abrasion prevention instrument, comprises mandrel 1; Mandrel 1 bottom is threaded guide bar 3, mandrel 1 is set with grinding body 2, mandrel 1 external wall of upper portion is outer six aspects, mandrel 1 bottom outer wall is the face of cylinder, outer six aspects of mandrel 1 and interior six side's walls of grinding body 2 match, and grinding body 2 can along mandrel about 1 flexible motion, and grinding body 2 external surface is designed to Upper cylindrical face and lower tapered surface, grinding body 2 external surface welding-on has carbide alloy and YD welding rod, grinding body about 2 respectively by mandrel 1 step and guide bar 3 upper surface spacing.
When tail pipe milling diameter enlarging well cover damage section needs latus rectum, diameter enlarging to construct, the utility model is connected to drill string lower end and transfers to distortion, bad break place, damage in passage if guide bar 3 inserts cover, grinding body 2 is hampered, grinding body 2 will mandrel 1 upward sliding relatively, enter six square bar positions of mandrel 1, rotary drill column, six square bars of mandrel 1 drive grinding body 2 to carry out normal milling.If milling is without drilling depth, illustrate that the utility model does not insert bad break place, grinding body 2 does not also reach six square bar positions, and drill string dallies, and does not play ablation, reaches the effect of the former casing of eccentric abrasion prevention thus.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1. a tail pipe milling diameter enlarging clutch type eccentric abrasion prevention instrument, comprises mandrel (1), it is characterized in that: mandrel (1) bottom is threaded guide bar (3), mandrel (1) is set with grinding body (2), mandrel (1) external wall of upper portion is outer six aspects, mandrel (1) bottom outer wall is the face of cylinder, outer six aspects of mandrel (1) and interior six side's walls of grinding body (2) match, grinding body (2) can along mandrel (1) flexible motion up and down, grinding body (2) external surface is designed to Upper cylindrical face and lower tapered surface, grinding body (2) external surface welding-on has carbide alloy and YD welding rod, grinding body (2) up and down respectively by mandrel (1) step and guide bar (3) upper surface spacing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495175.4U CN204827313U (en) | 2015-07-09 | 2015-07-09 | Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520495175.4U CN204827313U (en) | 2015-07-09 | 2015-07-09 | Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827313U true CN204827313U (en) | 2015-12-02 |
Family
ID=54684924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520495175.4U Expired - Fee Related CN204827313U (en) | 2015-07-09 | 2015-07-09 | Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780208A (en) * | 2021-01-06 | 2021-05-11 | 中国矿业大学 | Gas extraction drilling fault-breaking deformation area repairing system and repairing method |
-
2015
- 2015-07-09 CN CN201520495175.4U patent/CN204827313U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780208A (en) * | 2021-01-06 | 2021-05-11 | 中国矿业大学 | Gas extraction drilling fault-breaking deformation area repairing system and repairing method |
| CN112780208B (en) * | 2021-01-06 | 2021-10-26 | 中国矿业大学 | Gas extraction drilling fault-breaking deformation area repairing system and repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202047748U (en) | Ultra short radius horizontal well flexible drilling tool | |
| CN208040308U (en) | A kind of reaming bit and drilling machine | |
| CN109779575A (en) | A kind of deep camber wellbore sand control completion tubing string and completion method | |
| CN105201423A (en) | Hydraulic type continuous pressurizing bit-feeding tool | |
| CN206458312U (en) | Sand drilling, sand washing and sand fishing integrated pipe column | |
| CN204827313U (en) | Tail pipe milling gets through and prevents inclined to one side grinder utensil with clutch formula | |
| CN203603805U (en) | Coiled tubing sand washing well-flushing tool | |
| CN203783497U (en) | Drillable bridge plug fragment cleaning tool for oil and gas well | |
| CN210152621U (en) | Flexible screen pipe and sand-proof well completion pipe string | |
| CN201908599U (en) | Fishing tool for multifunctional spiral drilling rig | |
| CN209799935U (en) | Large-curvature well sand control screen pipe | |
| CN210598822U (en) | Drilling tool extending in casing | |
| CN210217679U (en) | Small well bore sleeve milling, making and buckling, fishing and well repairing tool | |
| CN108301789B (en) | Casing pulling device and casing pulling method | |
| CN103775017B (en) | Device is dragged in a kind of Refloatation method and side used of disconnected bar | |
| CN204941334U (en) | A kind of highly effective petroleum exploring equipment based on Internet of Things | |
| CN207296911U (en) | Case pulling device | |
| CN208310695U (en) | A kind of drilling tool positioning and orienting device | |
| CN204851136U (en) | Many sets of pressure system well milling get through and use tail pipe milling shoe | |
| CN2720097Y (en) | Composite bushing milling jacket for finishing casing pipe | |
| CN205955724U (en) | It is wireless along with boring inclinometer with circulation cover convenient to dismantle | |
| CN205764008U (en) | A kind of oil field well special jewel ball instrument | |
| CN109681121A (en) | A kind of downhole drill bidirectional eccentric pipe nipple expanding drilling tool | |
| CN107859488A (en) | A kind of multi-functional mining diamond bit and its operation principle | |
| CN203334960U (en) | Novel drilling plug reaming tool |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160709 |