CN203066886U - Multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe - Google Patents
Multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe Download PDFInfo
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- CN203066886U CN203066886U CN 201220722092 CN201220722092U CN203066886U CN 203066886 U CN203066886 U CN 203066886U CN 201220722092 CN201220722092 CN 201220722092 CN 201220722092 U CN201220722092 U CN 201220722092U CN 203066886 U CN203066886 U CN 203066886U
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Abstract
The utility model relates to a multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe. The multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe comprises two water-proof/sand-proof pipe units, a male connector, a female connector, a plurality of locating blocks, a plurality of nuts, and a sealing ring, wherein the male connector is connected on a water-proof/sand-proof pipe unit in a welding mode, the female connector is connected on the other water-proof/sand-proof pipe unit in a welding mode, multiple-start sawtooth-shaped taper external threads are arranged on the male connector, taper internal threads which are equal to the male connector in the thread number and tooth shape are arranged on the female connector, and the external threads on the male connector are combined on the internal threads on the female connector in a screwing mode. Through large-lead connection of the multiple-start internal taper threads and the multiple-start external taper threads between the male connector and the female connector, an assembling distance between the male connector and the female connector and assembling slewing ring number are reduced, connecting speed is improved, and therefore the multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe has the advantages of being stable in connection, quick in assembling speed, strong in stiffness, good in sealing effect, strong in anti-loading capacity, safe in construction, short in period, high in effectiveness for a period, reusable and the like.
Description
Technical field
The utility model relates to drilling well water proof in a kind of ocean or desert area oil exploration and the oil exploitation/every sand tube, particularly connected mode and the structure between the unit pipes of this drilling well water proof/in sand tube and the unit pipes belongs to oil field equipment design and manufacturing technology field.
Background technology
Used drilling water-separation pipe mostly is the segment type marine riser that has snap joint in the deep-sea oil exploitation at present.Under the condition that this marine riser is not surveyed in the deep-sea depth of water, the wind was high and the waves were pressing on the sea, geological conditions complicated and the casing programme of every mouthful of well has nothing in common with each other, can not satisfy the stability requirement of well mouth of oil well, marine riser can frequently occur rocking under the thrust of wave, cause manifold rigidity to reduce, sealing performance between the tube and tube descends, cause seawater to leak and immerse, have a strong impact on the safety in production of offshore field.
The vast desert area of area in the world because many oil gas fields are present in the underground of desert, need be carried out petroleum exploration and development in wide stretches of desert area.But the problem that at first runs in the desert area drilling well is how to set up the first road slurry channel of ground drill and subterranean bore hole.Owing to all be soft fine sand in desert area surface of stratum even the darker scope below the face of land, boring method with routine is difficult to set up stable borehole wall condition, the back borehole wall that pulls out of hole of drilling well first often occurs and caves in thereupon and surface pipe can't be lowered to or down less than the problem of desired depth.In order to address the above problem, people utilize the operating principle of marine riser, marine riser are applied in the petroleum exploration and development of desert area, form every sand tube.
Summary of the invention
Exist in order to solve marine oil field drilling water-separation pipe in drilling well and exploration process that connection speed is slow, rigidity is low, rock big, poor sealing performance and desert area solve drilling well first pull out of hole the back cave-in, surface pipe can't be lowered to fast or down less than problems such as desired depths, the utility model provides a kind of multiple thread fast joint type drilling well water proof/every sand tube.
The utility model realizes that the technical scheme that the above-mentioned purpose Bian of institute gets is: a kind of multiple thread fast joint type drilling well water proof/every sand tube, comprise two water proofs or every the sand tube unit, one male joint, one female joint, many locating pieces, many screws, one sealing ring, described male joint is welded on a water proof or on an end of sand tube unit, described female joint is welded on the another water proof or on an end of sand tube unit, the outside, middle part that it is characterized in that described male joint is provided with bull zigzag tapering external screw thread, the externally threaded big end of tapering all is connected one section cylinder with small end, and the small end cylinder is positioned at the other end outside of male joint, and its cylindrical end is seal face; The inboard, middle part of described female joint is provided with tapering internal thread identical with public access head number, that profile of tooth is identical, the big end of tapering internal thread all is connected one section cylindrical hole with small end, and hold cylindrical hole to be positioned at the other end inboard of female joint greatly, be provided with cannelure in the small end cylindrical hole, small end cylindrical hole bottom is seal face; Tapering external thread rotary in the described male joint is combined in the tapering internal thread of female joint, and the connection cylinder of male joint tapering external screw thread small end is matched in clearance with being connected of female joint tapering internal thread small end between the cylindrical hole, the connection cylinder of the big end of male joint tapering external screw thread is interference fit with being connected of the big end of female joint tapering internal thread between the cylindrical hole, the seal face at the bottom of the column sealed end face of male joint tapering external screw thread small end and the female joint tapering internal thread small end cylindrical hole fits; Described sealing ring places the cannelure in the female joint tapering internal thread small end cylindrical hole; The thread form oblique angle of described bull zigzag tapering external screw thread and bull zigzag tapering internal thread workpiece face for-2o～-the thread form oblique angle of 4o, non-working surface is 43o～47o; Respectively be provided with a plurality of locating slots between described male joint and the female joint, and when screwing seal face at the bottom of inside and outside taper thread makes the column sealed end face of male joint tapering external screw thread small end and female joint tapering internal thread small end cylindrical hole and fit, the median plane of two whenever relative locating slots coincides in a plurality of locating slots that respectively are provided with, and forms complete a plurality of kidney slots; Described a plurality of locating piece is fixed in the male joint by screw and every locating piece lays respectively in the kidney slot.
The utility model connects by the inside and outside taper thread between the male and female joint, make the male and female joint in assembling process, reduce mounting distance to greatest extent, and by having the big helical pitch multiple thread of coupling mechanism force and pretightning force, farthest reduce the assembling rotating cycle (relatively rotating 1/2～3/4 circle after the pre-insertion of male and female joint can tighten) of joint, improved connection speed.Utilize radial interference fit to form sealing for the first time in the rear end that the male and female joint screw thread connects; Radial fit face at the male and female joint utilizes rubber seal to form soft seal for the second time; Axial joint face at the male and female joint utilizes the locking applying formation sealing firmly for the third time of seal face between the two, make water proof or form an integral body string every the sand tube unit, thereby reduce water proof to greatest extent or between the sand tube unit because of rocking that fit clearance causes, reduce to greatest extent because rocking the seawater seepage that produces.
Marine riser in the marine drilling process in the utility model have connect stable, assembling speed is fast, rigidity is big, good sealing effect, advantage such as reusable; In the desert drill process in the utility model every sand tube, have again that reasonable in design, anti-weight bearing power are strong, assembly technology simple, a construction safety, short, timeliness advantages of higher of cycle.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is I part-structure enlarged drawing among Fig. 1;
Fig. 3 is that A among Fig. 1 is to the structure zoomed-in view.
In Fig. 1,2,3: 1,6 water proofs or every the sand tube unit, 2 female joints, 201 seal faces, 202,203 cylindrical hole fitting faces, 3 sealing rings, 4 male joints, 401 seal faces, 402,403 cylinder fitting faces, 5 screws, 7 locating pieces.
The specific embodiment
As shown in Figure 1, one end of male joint 4 is welded on water proof or on an end of sand tube unit 6, one end of female joint 2 is welded on water proof or on an end of sand tube unit 1, the outside, middle part of male joint 4 is provided with four-head zigzag tapering external screw thread, the externally threaded big end of tapering all is connected one section cylinder fitting face 402 and 403 with small end, and cylinder fitting face 402 is positioned at the other end outside of male joint 4, and its cylindrical end is seal face 401; The inboard, middle part of female joint 2 is provided with tapering internal thread identical with public access head number, that profile of tooth is identical, the big end of tapering internal thread all is connected one section cylindrical hole fitting face 202 and 203 with small end, and cylindrical hole fitting face 203 is positioned at the other end inboard of female joint 2, be provided with cannelure in the cylindrical hole fitting face 202, the bottom of cylindrical hole fitting face 202 is seal face 201; Tapering external thread rotary in the male joint 4 is combined in the tapering internal thread of female joint 2, and be matched in clearance between the cylindrical hole fitting face 202 of the cylinder fitting face 402 of male joint 4 tapering external screw thread small ends and female joint 2 tapering internal thread small ends, be interference fit between the cylindrical hole fitting face 203 of the cylinder fitting face 403 of the big end of male joint 4 tapering external screw threads and the big end of female joint 2 tapering internal threads, the seal face 201 at the bottom of the column sealed end face 401 of male joint 4 tapering external screw thread small ends and the female joint 2 tapering internal thread small end cylindrical holes fits; Sealing ring 3 places the cannelure in the female joint 2 tapering internal thread small end cylindrical hole fitting faces 202.As shown in Figure 2, the thread form oblique angle of bull zigzag tapering external screw thread and bull zigzag tapering internal thread workpiece face is 45o for the thread form oblique angle of-3o, non-working surface; Respectively be provided with four locating slots between male joint 4 and the female joint 2, the median plane of two whenever relative locating slots coincides in 4 locating slots that respectively are provided with when screwing inside and outside taper thread and making the column sealed end face 401 of male joint 4 tapering external screw thread small ends and seal face 201 at the bottom of the female joint 2 tapering internal thread small end cylindrical holes fits, form four complete kidney slots as shown in Figure 3, locating piece 7 is four, four locating pieces 7 are fixed in the male joint 4 by screw respectively, and every locating piece 7 lays respectively in the kidney slot.
The utility model when assembling, utilize the taper thread centering in male joint 4 and the female joint 2, male joint 4 is inserted in the female joints 2, finish water proof or every sand tube unit 6 and water proof or every the butt joint of sand tube unit 1; Fix female joint 2, block male joint 4 and turn clockwise male joint 4(rotation 1/4～3/4 circle by the power jaw), meanwhile transfer male joint 4, by the torsion of Power Tong and the coupling mechanism force of screw thread male joint 4 is docked fully with female joint 2, and seal face 401,201 is fitted tightly, realize the sealing first time of interference face between cylinder fitting face 403 and the cylindrical hole fitting face 203 thus simultaneously; The soft seal second time between sealing ring 3 and the cylinder fitting face 402; Sealing firmly for the third time between seal face 401 and the seal face 201.Male joint 4 is with after female joint 2 is connected fully, in four complete kidney slots of butt joint, insert four locating pieces 7, and fastening by screw 5, can not produce relative rotation thereby make between male joint 4 and the female joint 2, to prevent that the male and female joint from thread looseness in use taking place throw off phenomenon.In the utility model, screw thread work plane tooth form oblique angle is set to 45o, the non-working surface tooth form is set to-3o, can reduce the contact of screw thread load surface to greatest extent, thereby reduces the wearing and tearing of contact surface greatly, effectively improves and reuses the life-span.
In the marine drilling construction, as the water proof in need dismounting the utility model or every sand tube unit 6, four locating pieces 7 in the kidney slot between male joint 4 and the female joint 2 need only be unloaded, fixedly male joint 4(1/4～3/4 circle is bitten and rotated counterclockwise to female joint 2 usefulness Power Tong jaws) after, on propose male joint 4 male joint 4 and female joint 2 are thrown off fully, unload water proof or every sand tube unit 6.
In the site operation of desert, be connected bunchiness with many water proofs or every sand tube unit 6 at the rotating disk of rig floor with many water proofs or every sand tube unit 1, select the derrick hoisting depth, select the pile hammer of hit energy abundance, under the prerequisite of not damaging joint, squeeze into the stratum, desert fast with water proof or every the sand tube unit strings, be lowered to drilling rod at water proof or in the sand tube unit strings again and open the brill drilling well, the utility model is played prevent cave-in and top layer every the effect of sand.
The above only is preferred embodiment of the present utility model, not in order to limiting the utility model, all any modifications of doing, is equal to replacement, improvement etc. within spirit of the present utility model and principle, all should be included within the protection domain of the present utility model.
Claims (5)
1. a multiple thread fast joint type drilling well water proof/every sand tube, comprise two water proofs or every sand tube unit, a male joint, a female joint, many locating pieces, many screws, a sealing ring, described male joint is welded on a water proof or on an end of sand tube unit, described female joint is welded on the another water proof or on an end of sand tube unit, it is characterized in that:
The outside, the middle part of described male joint is provided with bull zigzag tapering external screw thread, and the externally threaded big end of tapering all is connected one section cylinder with small end, and the small end cylinder is positioned at the other end outside of male joint, and its cylindrical end is seal face;
The inboard, middle part of described female joint is provided with tapering internal thread identical with public access head number, that profile of tooth is identical, the big end of tapering internal thread all is connected one section cylindrical hole with small end, and hold cylindrical hole to be positioned at the other end inboard of female joint greatly, be provided with cannelure in the small end cylindrical hole, small end cylindrical hole bottom is seal face;
Tapering external thread rotary in the described male joint is combined in the tapering internal thread of female joint, and the connection cylinder of male joint tapering external screw thread small end is matched in clearance with being connected of female joint tapering internal thread small end between the cylindrical hole, the connection cylinder of the big end of male joint tapering external screw thread is interference fit with being connected of the big end of female joint tapering internal thread between the cylindrical hole, the seal face at the bottom of the column sealed end face of male joint tapering external screw thread small end and the female joint tapering internal thread small end cylindrical hole fits.
2. a kind of multiple thread fast joint type drilling well water proof according to claim 1/every sand tube, it is characterized in that respectively being provided with between described male joint and the female joint a plurality of locating slots, and when screwing seal face at the bottom of inside and outside taper thread makes the column sealed end face of male joint tapering external screw thread small end and female joint tapering internal thread small end cylindrical hole and fit, the median plane of two whenever relative locating slots coincides in a plurality of locating slots that respectively are provided with, and forms complete a plurality of kidney slots.
3. a kind of multiple thread fast joint type drilling well water proof according to claim 1/every sand tube is characterized in that described sealing ring places the cannelure in the female joint tapering internal thread small end cylindrical hole.
4. a kind of multiple thread fast joint type drilling well water proof according to claim 1/every sand tube, the thread form oblique angle that it is characterized in that described bull zigzag tapering external screw thread and bull zigzag tapering internal thread workpiece face for-2o～-the thread form oblique angle of 4o, non-working surface is 43o～47o.
5. a kind of multiple thread fast joint type drilling well water proof according to claim 2/every sand tube, it is characterized in that a plurality of locating pieces are fixed in the male joint by screw and every locating piece lays respectively in the kidney slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722092 CN203066886U (en) | 2012-12-25 | 2012-12-25 | Multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220722092 CN203066886U (en) | 2012-12-25 | 2012-12-25 | Multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066886U true CN203066886U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220722092 Expired - Fee Related CN203066886U (en) | 2012-12-25 | 2012-12-25 | Multiple-start thread quick connecting type well drilling water-proof/sand-proof pipe |
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| CN (1) | CN203066886U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527107A (en) * | 2013-10-12 | 2014-01-22 | 建湖县永维阀门钻件有限公司 | Bidirectional self-locking type single-start thread marine riser connector |
| CN103899254A (en) * | 2012-12-25 | 2014-07-02 | 建湖县永维阀门钻件有限公司 | Multiple thread rapid connection type well drilling water-proof (sand-proof) pipe |
| CN106014283A (en) * | 2016-07-14 | 2016-10-12 | 中国海洋石油总公司 | Piling type riser connector |
| CN106150396A (en) * | 2016-08-30 | 2016-11-23 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe special thread female joint |
| CN107747477A (en) * | 2017-10-19 | 2018-03-02 | 山东祺龙海洋石油钢管股份有限公司 | Riser joints ratchet-type anti-rotation device |
| CN109356533A (en) * | 2018-11-30 | 2019-02-19 | 中海石油(中国)有限公司 | A kind of deep water surface conductor pipe |
-
2012
- 2012-12-25 CN CN 201220722092 patent/CN203066886U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899254A (en) * | 2012-12-25 | 2014-07-02 | 建湖县永维阀门钻件有限公司 | Multiple thread rapid connection type well drilling water-proof (sand-proof) pipe |
| CN103527107A (en) * | 2013-10-12 | 2014-01-22 | 建湖县永维阀门钻件有限公司 | Bidirectional self-locking type single-start thread marine riser connector |
| CN106014283A (en) * | 2016-07-14 | 2016-10-12 | 中国海洋石油总公司 | Piling type riser connector |
| CN106150396A (en) * | 2016-08-30 | 2016-11-23 | 天津德华石油装备制造有限公司 | A kind of offshore drill uses riser pipe special thread female joint |
| CN107747477A (en) * | 2017-10-19 | 2018-03-02 | 山东祺龙海洋石油钢管股份有限公司 | Riser joints ratchet-type anti-rotation device |
| CN109356533A (en) * | 2018-11-30 | 2019-02-19 | 中海石油(中国)有限公司 | A kind of deep water surface conductor pipe |
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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: 20130717 Termination date: 20131225 |