CN101942982A - Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well - Google Patents
Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well Download PDFInfo
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- CN101942982A CN101942982A CN 201010272010 CN201010272010A CN101942982A CN 101942982 A CN101942982 A CN 101942982A CN 201010272010 CN201010272010 CN 201010272010 CN 201010272010 A CN201010272010 A CN 201010272010A CN 101942982 A CN101942982 A CN 101942982A
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Abstract
The invention relates to a device for jetting a conduit into a directly-drilled surface layer of a marine deep-water drilling well, which is used for marine deep-water drilling wells. An annular groove is arranged on the outer wall of a shell; an opening locking ring is arranged in the annular groove; push rods are uniformly distributed on the shell, and the push rods can slide in push rod holes; and an outer sleeve is arranged in the central cylinder of the shell, an inner sleeve is arranged in the outer sleeve, and a mandrel is arranged in the inner sleeve. An annular cover is fixed at the upper end of the central cylinder of the shell. The annular groove is arranged on the outer wall of the outer sleeve; and the inner sleeve is connected with the outer sleeve through threads. Three stepped grooves are uniformly distributed on the inner wall of the lower end of the inner sleeve, and three raised cuboid slide blocks are uniformly distributed on the cylindrical outer wall of the mandrel. Rotation torque can be transferred through the mandrel, the mandrel can be separated from the inner sleeve, and after conduit laying through jetting is finished, a drilling string does not need to be pulled to directly drill surface layer wellbores, thereby saving the drilling time.
Description
Technical field
The present invention relates to offshore oil and bore dark technical field.Specifically be exactly that a kind of conduit that is suitable for the ocean deepwater drilling use sprays the isolated plant that is lowered to straight brill top layer; Be connected in the drill string, can conduit be lowered to put in place after, need not trip out drill string and directly bore the construction of top layer well.
Background technology
In the marine drilling construction, after the phytal zone is adopted piling or boring usually, be lowered to conduit, and adopt common cementing method that conduit is fixed.In the profundal zone, owing to there are problems such as sea bed instability, shallow-layer current, formation fracture pressure are low, gas hydrate obstruction, adopt conventional piling, boring and downcomer after, the mode that adopts common well cementation is difficulty relatively, the operating risk height is obviously improper for taking high deepwater drilling day.For this reason, adopted injection downcomer technology in the deep sea drilling construction.Spraying the downcomer technology is to utilize spray regime to put in place under the conduit.Promptly utilize the gravity of water jet and conduit string, perforate limit downcomer is sprayed on the limit, is lowered to the power drilling tool combination simultaneously to improve safety and operating efficiency in spraying tubing string.Conduit is behind predetermined well depth, and static conduit string utilizes the adhesion on stratum and frictional force to stabilize conduit.Free running tool then and trip out the interior drilling tool of conduit, finish the installation of conduit.In order to save the valuable operation on the sea time, on the basis of spraying the downcomer technology, the injection downcomer occurred and directly bored the top layer technology, promptly after the injection downcomer is finished, directly bore the top layer well, do not need to remove drill string.
At present, China does not carry out the drilling well that the injection downcomer directly bores the top layer as yet.
In the marine drilling construction, the installation site of conductor housing is at the top of conduit, and the structure of conductor housing is a circular cylinder, and the mode in the lower end by welding is connected with conduit, the inwall of conductor housing has the annular cones face, and the annular cones face is the inclined-plane of following one deck well head headstock envelope.The effect of conductor housing is the first-class device of well head that hangs conduit and support subsequent installation.
Summary of the invention
The objective of the invention is: provide a kind of ocean deepwater drilling to spray downcomer and directly bore the top layer device, realize that axle is transmitted rotation torque and axle can break away from inner sleeve.Adapt to ocean deepwater oil drilling usefulness, can after the injection downcomer is finished, directly bore the top layer well, do not need to remove drill string.
The technical solution used in the present invention is: ocean deepwater drilling sprays downcomer and directly bores the top layer device, mainly is made up of axle, ring cover, housing, housing set bolt, anti-sleeve rotation pin, inner sleeve, conductor housing, opening retaining ring, push rod, outer sleeve and screw.Axle has centre bore for the cylinder bodily form, in the axle upper end internal thread is arranged, and there is external screw thread the lower end, can be connected with drilling rod by screw thread.It is characterized in that: on the inwall of conductor housing and on the top of conductor housing annular cones face, an annular groove is arranged.A housing is arranged in conductor housing, housing comprises a ring plate, a center drum and an outer cylinder, ring plate, center drum and outer cylinder are one, center drum is connected in the middle of the ring plate, outer cylinder is connected the ring plate outer lower portion, and ring plate center line, center drum center line and outer cylinder center line are same straight line; The outer wall of outer cylinder has the annular cones face, and the annular cones face of outer cylinder can be enclosed on the inwall annular cones face of conductor housing by seat.On the outer wall of the ring plate of housing annular groove is arranged, the annular groove of ring plate is relative with the annular groove of conductor housing; An opening retaining ring is arranged in the annular groove of ring plate, and after the opening retaining ring was strutted, the opening retaining ring can have in the annular groove that is partially submerged into conductor housing, and housing is fixed in the conductor housing, and housing can not move up.Be evenly distributed with push-rod hole on the ring plate of housing, an end of push-rod hole is in the annular groove of housing, and the push-rod hole center line is vertical with the center line of housing; A push rod is arranged in each push-rod hole, and push rod can slide in push-rod hole, can strut the opening retaining ring when push rod outwards slides.
The housing set bolt is arranged between conductor housing and housing, and the housing set bolt is fixed on housing in the conductor housing, and housing can not move up and down in conductor housing, can not rotate.
An outer sleeve is arranged in the center drum of housing, an inner sleeve is arranged in outer sleeve, axle is in inner sleeve.Between 10～100 millimeters, outer sleeve can slide up and down in center drum to the distance of the center drum of housing bottom in the lower surface of outer sleeve.Ring cover is fixed on the center drum upper end of housing.
An annular groove is arranged on the outer wall of outer sleeve, and the cross section of annular groove is trapezoidal; The inner end of described push rod is in the annular groove of outer sleeve, and the inner end of push rod is a cone shape.When outer sleeve during to lower slider, the inner end of push rod can outwards be moved along the inclined-plane at annular groove.Push rod outwards moves the opening retaining ring is strutted.For preventing that outer sleeve from rotating, and has axial groove in the outer wall lower end of outer sleeve; On the center drum outer wall of housing pin hole is arranged, be fixed with anti-sleeve rotation pin in the pin hole, the inner of anti-sleeve rotation pin is in the axial groove of outer sleeve.Outer sleeve can not rotate, and can only slide up and down.
There is internal thread inwall lower end at outer sleeve, and there is external screw thread at the outer wall middle part of inner sleeve, and inner sleeve is connected with outer sleeve by screw thread, can realize that the drive outer sleeve of inner sleeve moves vertically.
The ring cover centre bore is passed in the upper end of inner sleeve; The center drum bottom centre hole of housing is passed in the lower end of inner sleeve.Be evenly distributed with three stepped groove at the lower end of inner sleeve inwall, stepped groove is made up of perpendicular groove and horizontal groove, and the lower end of perpendicular groove is the opening shape, and horizontal groove is an arc, horizontal groove is at the top of perpendicular groove, and the slide block of axle outer wall can skid off perpendicular groove from the opening part of perpendicular groove lower end.
On the cylindrical outer wall of axle, be evenly distributed with the cuboid slide block of three projectioies.The axle slide block is in the stepped groove of inner sleeve.Slide block on the axle outer wall cooperates with inner sleeve inwall stepped groove, realizes that axle drives inner sleeve and slides.
In order in time to understand the position of inner sleeve and outer sleeve, judge the locking state of opening retaining ring and conductor housing, at the annular upper end face of outer sleeve a cylindrical indicating arm screwed hole is arranged; A cylindrical axially extending bore is arranged on ring cover, and the indicating arm screwed hole is relative with axially extending bore on the ring cover, and axially extending bore and cylindrical indicating arm lower end that cylindrical indicating arm passes on the ring cover are fixed in the indicating arm screwed hole.
The indicating arm sealing is arranged, the indicating arm sealing between ring cover and indicating arm) be the O RunddichtringO.
Ocean deepwater drilling sprays the operating principle that downcomer directly bores the top layer device: consult Fig. 1.Original state is that slide block on axle 1 outer wall is in the stepped groove 15 of inner sleeve 6, in the perpendicular groove; The inner end of push rod 9 is embedded in the outer sleeve 10 outer wall annular grooves 17; Opening retaining ring 8 is in locking state.
Ocean deepwater drilling is sprayed downcomer directly bore the top layer device and transfer in the conductor housing 7, and the outer wall of housing 3 there is the annular cones face to be seated on the conductor housing 7 inwall annular cones faces.
Counter clockwise direction live spindle 1 is in three slide blocks on axle 1 outer wall rotate to the horizontal groove in inner sleeve 6 lower ends; Transfer axle 1, the slide block on axle 1 outer wall promotes inner sleeve 6 to lower slider, and outer sleeve 10 moves down under the drive of inner sleeve 6 simultaneously.Annular groove 17 on outer sleeve 10 outer walls promotes push rod 9 and outwards slides.The other end of push rod 9 is outwards upheld, and opening retaining ring 8 is strutted and opening retaining ring 8 savings elastic potential energys, and opening retaining ring 8 is locked with the annular groove on conductor housing 7 inwalls.Housing 3 is fixed in the conductor housing 7.
At this moment, can enter normal injection downcomer construction.Finish whole conduits be lowered to put in place after, need enter and bore top layer well construction.
Before boring top layer well construction, on carry live spindle 1 and turn clockwise, in the slide block on axle 1 outer wall rotates to the perpendicular groove in inner sleeve 6 lower ends; Slide block on axle 1 outer wall promotes inner sleeve 6 and upwards slides, and outer sleeve 10 moves up under the drive of inner sleeve 6 simultaneously.When 17 arrival of the annular groove on outer sleeve 10 outer walls were relative with push rod 9 positions, opening retaining ring 8 discharged elastic potential energys, promoted push rod 9 and inwardly slided, the annular groove on 8 contractions of opening retaining ring and disengaging conductor housing 7 inwalls.Releasing housing 3 is connected with conductor housing 7.A whole set of ocean deepwater drilling injection downcomer directly bores the top layer device and conductor housing 7 is freed.
Transfer drill string then, the stepped groove 15 of slide block on axle 1 outer wall and inner sleeve 6 inwalls is deviate from, and can enter to bore top layer well construction.Bore top layer well construction when finishing, after the top layer well reaches projected depth, on carry drilling tool, three slide blocks on axle 1 outer wall contact with inner sleeve 6 lower planes, the housing set bolt 4 of outwarding winding directly bores the top layer device with the whole series and trips out, and finishes downcomer and directly bores the top layer and construct.
Beneficial effect of the present invention: the injection downcomer that ocean deepwater oil drilling of the present invention is used directly bores the top layer device, can realize that axle is transmitted rotation torque and axle can break away from inner sleeve, after the injection downcomer is finished, need not remove drill string, directly bore the top layer well, thereby save a large amount of valuable activity durations.
Description of drawings
Fig. 1 is that ocean deepwater drilling injection downcomer of the present invention directly bores top layer apparatus structure generalized section.
Fig. 2 is inner sleeve 6 generalized sections.
Fig. 3 is outer sleeve 10 generalized sections.
Among the figure, 1-axle, 2-ring cover, 3-housing, 4-housing set bolt, the anti-sleeve rotation of 5-pin, 6-inner sleeve, 7-conductor housing, 8-opening retaining ring, 9-push rod, 10-outer sleeve, the 11-screw, the sealing of 12-indicating arm, 13-indicating arm, the 14-external screw thread, 15-stepped groove, 16-indicating arm screwed hole, the 17-annular groove, 18-internal thread, 19-axial groove.
The specific embodiment
Embodiment 1: directly boring the top layer device with an ocean deepwater drilling injection downcomer is example, and the present invention is described in further detail.
Consult Fig. 1.Ocean deepwater drilling of the present invention sprays downcomer and directly bores the top layer device, mainly is made up of axle 1, ring cover 2, housing 3, housing set bolt 4, anti-sleeve rotation pin 5, inner sleeve 6, conductor housing 7, opening retaining ring 8, push rod 9, outer sleeve 10, screw 11, indicating arm sealing 12 and indicating arm 13.The external diameter 224mm of axle 1, length 1680mm.Axle 1 has centre bore for the cylinder bodily form, in axle 1 upper end API drilling rod internal thread is arranged, and there is API drilling rod external screw thread the lower end.
On the inwall of conductor housing 7 and on the top of conductor housing 7 annular cones faces, an annular groove is arranged.A housing 3 is arranged in conductor housing 7, housing 3 mainly is divided into three parts, a ring plate, a center drum and an outer cylinder, ring plate, center drum and outer cylinder are one, center drum is connected in the middle of the ring plate, outer cylinder is connected the ring plate outer lower portion, and ring plate center line, center drum center line and outer cylinder center line are same straight line.The outer wall of outer cylinder has an annular cones face; On the outer wall of the ring plate of housing 3 annular groove is arranged, the annular groove of ring plate is relative with the annular groove of conductor housing 7; An opening retaining ring 8 is arranged in the annular groove of ring plate, and opening retaining ring 8 is an annular, and the mouth of a disconnection is arranged, and cross section is a rectangle; Be evenly distributed with four push-rod holes on the ring plate of housing 3, an end of push-rod hole is in the annular groove of housing 3, and the push-rod hole center line is vertical with the center line of housing 3; A push rod 9 is arranged in each push-rod hole, and push rod 9 can slide in push-rod hole.
Four housing set bolts 4 are arranged between conductor housing 7 upper ends and housing 3, conductor housing 7 is fixing with housing 3.
An outer sleeve 10 is arranged in the center drum of housing 3, an inner sleeve 6 is arranged in outer sleeve 10, axle 1 is in inner sleeve 6.The lower surface of outer sleeve 10 is 90 millimeters to the distance of the center drum bottom of housing 3; Ring cover 2 is fixed on the center drum upper end of housing 3 by six screws 11.Ring cover 2 can block outer sleeve 10 and upwards skid off.
Consult Fig. 3.An annular groove 17 is arranged on the outer wall of outer sleeve 10, and the cross section of annular groove 17 is trapezoidal.Consult Fig. 1.Outside in the annular groove 17 of sleeve 10, the inner end of push rod 9 is a cone shape respectively in the inner end of four push rods 9.Consult Fig. 3.There is axial groove 19 outer wall lower end at outer sleeve 10.Consult Fig. 1.A pin hole is arranged on the center drum outer wall of housing 3, be fixed with an anti-sleeve rotation pin 5 in the pin hole, the inner of anti-sleeve rotation pin 5 is in the axial groove 19 of outer sleeve 10.
Consult Fig. 3.There is internal thread 18 inwall lower end at outer sleeve 10, consults Fig. 1.There is external screw thread 14 at the outer wall middle part of inner sleeve 6, and inner sleeve 6 is connected with outer sleeve 10 by screw thread.
Consult Fig. 1.On the cylindrical outer wall of axle 1, be evenly distributed with the cuboid slide block of three projectioies.Axle 1 slide block is in the stepped groove 15 of inner sleeve 6.
Consult Fig. 3.Annular upper end face at outer sleeve 10 has a cylindrical indicating arm screwed hole 16; Consult Fig. 1.A cylindrical axially extending bore is arranged on ring cover 2, and indicating arm screwed hole 16 is relative with axially extending bore on the ring cover 2, and axially extending bore and cylindrical indicating arm 13 lower ends that cylindrical indicating arm 13 passes on the ring cover 2 are fixed in the indicating arm screwed hole 16.Indicating arm sealing 12 is arranged between ring cover 2 and indicating arm 13, and indicating arm sealing 12 is O RunddichtringOs.
Claims (3)
1. an ocean deepwater drilling injection downcomer directly bores the top layer device, mainly form by axle (1), ring cover (2), housing (3), housing set bolt (4), anti-sleeve rotation pin (5), inner sleeve (6), conductor housing (7), opening retaining ring (8), push rod (9), outer sleeve (10) and screw (11), axle (1) has centre bore for the cylinder bodily form, in axle (1) upper end internal thread is arranged, there is external screw thread the lower end; It is characterized in that: on the inwall of conductor housing (7) and on the top of conductor housing (7) annular cones face, an annular groove is arranged, a housing (3) is arranged in conductor housing (7), housing (3) comprises a ring plate, a center drum and an outer cylinder, ring plate, center drum and outer cylinder are one, center drum is connected in the middle of the ring plate, outer cylinder is connected the ring plate outer lower portion, and ring plate center line, center drum center line and outer cylinder center line are same straight line; The outer wall of outer cylinder has the annular cones face; On the outer wall of the ring plate of housing (3) annular groove is arranged, the annular groove of ring plate is relative with the annular groove of conductor housing (7); An opening retaining ring (8) is arranged in the annular groove of ring plate; Be evenly distributed with push-rod hole on the ring plate of housing (3), an end of push-rod hole is in the annular groove of housing (3), and the push-rod hole center line is vertical with the center line of housing (3); A push rod (9) is arranged in each push-rod hole, and push rod (9) can slide in push-rod hole;
Between conductor housing (7) and housing (3), housing set bolt (4) is arranged;
An outer sleeve (10) is arranged in the center drum of housing (3), an inner sleeve (6) is arranged in outer sleeve (10), axle (1) in inner sleeve (6), the lower surface of outer sleeve (10) to the distance of the center drum of housing (3) bottom between 10～100 millimeters; Ring cover (2) is fixed on the center drum upper end of housing (3) by screw (11);
An annular groove (17) is arranged on the outer wall of outer sleeve (10), and the cross section of annular groove (17) is trapezoidal; The inner end of described push rod (9) is in the annular groove (17) of outer sleeve (10), and the inner end of push rod (9) is a cone shape; In the outer wall lower end of outer sleeve (10) axial groove (19) is arranged; On the center drum outer wall of housing (3) pin hole is arranged, be fixed with anti-sleeve rotation pin (5) in the pin hole, the inner of anti-sleeve rotation pin (5) is in the axial groove (19) of outer sleeve (10);
In the inwall lower end of outer sleeve (10) internal thread (18) is arranged, there is external screw thread (14) at the outer wall middle part of inner sleeve (6), and inner sleeve (6) is connected with outer sleeve (10) by screw thread;
Ring cover (2) centre bore is passed in the upper end of inner sleeve (6); The center drum bottom centre hole of housing (3) is passed in the lower end of inner sleeve (6), lower end inwall at inner sleeve (6) is evenly distributed with three stepped groove (15), stepped groove (15) is made up of perpendicular groove and horizontal groove, the lower end of perpendicular groove is the opening shape, horizontal groove is an arc, and horizontal groove is at the top of perpendicular groove;
Be evenly distributed with the cuboid slide block of three projectioies on the cylindrical outer wall of axle (1), axle (1) slide block is in the stepped groove (15) of inner sleeve (6).
2. injection downcomer according to claim 1 directly bores the top layer device, it is characterized in that: the annular upper end face at outer sleeve (10) has a cylindrical indicating arm screwed hole (16); A cylindrical axially extending bore is arranged on ring cover (2), indicating arm screwed hole (16) is relative with axially extending bore on the ring cover (2), and axially extending bore and cylindrical indicating arm (13) lower end that cylindrical indicating arm (13) passes on the ring cover (2) are fixed in the indicating arm screwed hole (16).
3. injection downcomer according to claim 1 directly bores the top layer device, it is characterized in that: indicating arm sealing (12) is arranged between ring cover (2) and indicating arm (13), and indicating arm sealing (12) is the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102720102A CN101942982B (en) | 2010-09-01 | 2010-09-01 | Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102720102A CN101942982B (en) | 2010-09-01 | 2010-09-01 | Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well |
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| Publication Number | Publication Date |
|---|---|
| CN101942982A true CN101942982A (en) | 2011-01-12 |
| CN101942982B CN101942982B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102720102A Active CN101942982B (en) | 2010-09-01 | 2010-09-01 | Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041215A (en) * | 2015-06-29 | 2015-11-11 | 中国石油大学(华东) | Deepwater drilling guide tube feeding-in tool based on cam mechanism |
| CN105041248A (en) * | 2015-09-30 | 2015-11-11 | 中国石油大学(华东) | Feeding-in tool for surface guide tube during deepwater drilling |
| CN109267944A (en) * | 2018-10-24 | 2019-01-25 | 中海石油(中国)有限公司 | A kind of deep water surface conductor pipe device |
| CN109441394A (en) * | 2018-11-08 | 2019-03-08 | 中国海洋石油集团有限公司 | A kind of low pressure well head is sent into well cementation and continues drilling apparatus |
| CN110485944A (en) * | 2019-07-30 | 2019-11-22 | 中海油能源发展股份有限公司 | Introducing-type hammers riser joints |
| CN111894486A (en) * | 2020-04-30 | 2020-11-06 | 中国海洋石油集团有限公司 | Deepwater drilling surface conduit string feeding tool and use method thereof |
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| CN201802349U (en) * | 2010-09-01 | 2011-04-20 | 中国石油天然气集团公司 | Spraying guiding pipe inserting and surface direct-drilling device for ocean deepwater drilling |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041215A (en) * | 2015-06-29 | 2015-11-11 | 中国石油大学(华东) | Deepwater drilling guide tube feeding-in tool based on cam mechanism |
| CN105041215B (en) * | 2015-06-29 | 2016-12-14 | 中国石油大学(华东) | A kind of deepwater drilling conduit running tool based on cam mechanism |
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| CN109267944A (en) * | 2018-10-24 | 2019-01-25 | 中海石油(中国)有限公司 | A kind of deep water surface conductor pipe device |
| CN109441394A (en) * | 2018-11-08 | 2019-03-08 | 中国海洋石油集团有限公司 | A kind of low pressure well head is sent into well cementation and continues drilling apparatus |
| CN110485944A (en) * | 2019-07-30 | 2019-11-22 | 中海油能源发展股份有限公司 | Introducing-type hammers riser joints |
| CN111894486A (en) * | 2020-04-30 | 2020-11-06 | 中国海洋石油集团有限公司 | Deepwater drilling surface conduit string feeding tool and use method thereof |
| CN111894486B (en) * | 2020-04-30 | 2022-04-26 | 中国海洋石油集团有限公司 | Deepwater drilling surface conduit string feeding tool and use method thereof |
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| CN101942982B (en) | 2011-09-07 |
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