CN208996712U - A kind of hydraulic slotted liner technique device of semisubmersible drilling platform or drill ship - Google Patents

Abstract

The utility model discloses a kind of semisubmersible drilling platform or the hydraulic slotted liner technique device of drill ship, including casing, tripping in has drilling rod, hydraulic anchor, sand removal drill bit and hydraulic slotted liner technique tool in described sleeve pipe；The hydraulic anchor includes the hydraulic anchor ontology with through-hole in hydraulic anchor, the drilling rod is connect with the hydraulic anchor and sand removal drill bit respectively, it is provided with multiple slips cavitys and completion fluid pressure channel in the hydraulic anchor ontology, slips, reset spring and reset spring pressing plate are provided in the slips cavity；One end of the reset spring is connect with the slips, the other end is connect with the reset spring pressing plate, the reset spring pressing plate is fixedly connected with the hydraulic anchor ontology, the slips cavity is connected to by the completion fluid pressure channel with the drilling rod, filter sand component is provided in the completion fluid pressure channel, the slips is movable between the first position and the second position along the radial direction of hydraulic anchor ontology.

Description

A kind of hydraulic slotted liner technique device of semisubmersible drilling platform or drill ship

Technical field

The utility model relates to a kind of hydraulic slotted liner technique device more particularly to the water of a kind of semisubmersible drilling platform or drill ship Power slotting device.

Background technique

Gas hydrates test mining project is China Geological Survey Bureau's key project, is located at South Sea Shenhu sea area, and distance is deep Ditch between fields about 300km, 1300 meters of the depth of water or so, the reservoir lithology of target block buries shallow, reservoir permeability based on argillaceous siltstoue Poor and pilot production difficulty is big, for sufficiently cooperation decompression suction method exploitation hydrate, needs to expand the contact area with hydrate.

Hydraulic slotted liner technique technique is the principle using hydraulic jet, infuses high-pressure fluid by underground splitting tool by ground face-pumping Afterwards, high-speed jet is formed, under the action of water flow and grinding-material, by production casing and surrounding rock stratum along axial incision, finally A plurality of at an angle to each other, the physical gap with certain width and depth, after hydraulic sand blasting slot, oil are formed near wellbore zone Great variety has occurred in the geometric shape of rock stratum around well pit shaft, has broken the equilibrium state on original stratum, nearly well band stress Redistribution forms a pair of relatively deep gap, so as to adjust original stress field, the rock stratum of compaction band occurs loose And new crackle is generated, to effectively improve the permeability on stratum.

Production casing is opened using hydraulic turbulence and gos deep into reservoir, play the role of communication and reservoir is transformed, to storage Interval is transformed, and changes the geometric shape of rock stratum around nearly pit shaft, changes the stress field of nearly pit shaft, increases pit shaft peripherally Layer permeability, increase reservoir employ area, improve decomposition of hydrate speed, improve the filtrational resistance of nearly well band, to realize the sea The target of domain hydrate pilot production for the first time.

Hydraulic slotted liner technique takes sand cutting production casing by high-velocity flow and cracks, the connection of realization pit shaft and reservoir, while into Row reservoir reconstruction realizes that permeability improves.During hydraulic slotted liner technique, nozzle energy height concentrates cutting production casing, slot nozzle Must be opposing stationary, there can be no upper and lower heave and relatively rotate, it is conventional to use BOP (preventer) clamping coiled tubing or brill Bar, so that eliminating deep water platform is influenced to cause drilling rod cycle movement and drilling rod stretcher strain that slot depth is caused to become by wave stream Change, hydraulic slotted liner technique tool is made to keep stringent static, the patent of such as Chinese Publication No. CN201710671958.7, the patent passes through The coiled tubing or drilling rod of semisubmersible drilling platform or drill ship convey hydraulic slotted liner technique tool, so that the hydraulic slotted liner technique Tool sequentially passes through preventer, shaft structure reaches the designated depth in the shaft structure；Start semisubmersible drilling platform or The heave compensation system of drill ship, and the universal blowout preventer or ram preventer of preventer are closed, so that the universal blowout preventer Or ram preventer clamps the coiled tubing or drilling rod；Pass through the coiled tubing or Drill-pipe conveyed load fluid to the waterpower The nozzle of splitting tool, to complete slot operation.The technical solution of the patent eliminates deep water platform well to be influenced by wave stream It causes drilling rod cycle movement and drilling rod stretcher strain to cause slot change in depth, hydraulic slotted liner technique tool is made to keep stringent static, But since BOP (preventer) needs frequently opening and closing, the security performance of BOP (preventer) is seriously affected.

Further, it is also possible to using hydraulic anchor clamping casing, but since hydraulic slotted liner technique takes by high-velocity flow the completion fluid of sand Cutting production casing cracks, and the completion fluid for taking sand can enter in slips cavity, and sand can block the gap of slips Yu slips cavity, lead Cause slips that can not bounce back.During the completion fluid cutting production casing that hydraulic slotted liner technique high speed takes sand cracks, it can generate a large amount of Sand, if discharge capacity is insufficient during slot, will lead to sand accumulation can not be discharged together, result in blockage, seriously affect hydraulic slotted liner technique Working efficiency.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of semisubmersible drilling platform or brills The hydraulic slotted liner technique device of well ship, is provided with filter sand component, makes slips cavity that can only pass in and out completion fluid, avoid completion fluid take sand into Enter in slips cavity, the gap of slips and slips cavity is filled up by sand after avoiding slips from stretching out, and causes slips that can not bounce back；Furthermore Acceptable quick sand removal enables sand quickly discharge upwards under the action of sand removal drill bit, avoids batch slot, bottom hole is largely sunk Sand, while sand bottom can also be visited by sand removal drill bit.

In order to achieve the above object, technical solution used by the utility model is as follows:

The hydraulic slotted liner technique device of a kind of semisubmersible drilling platform or drill ship, including casing, tripping in has brill in described sleeve pipe Bar, hydraulic anchor, sand removal drill bit and hydraulic slotted liner technique tool；The sand removal drill bit is connect with the hydraulic slotted liner technique tool；The waterpower Hydraulic slotted liner technique spray gun is provided in splitting tool, the hydraulic anchor includes the hydraulic anchor ontology with through-hole in hydraulic anchor, described Drilling rod is connect with the hydraulic anchor and sand removal drill bit respectively, and multiple slips cavitys and completion fluid are provided in the hydraulic anchor ontology Pressure channel is provided with slips, reset spring and reset spring pressing plate in the slips cavity；One end of the reset spring with The slips connection, the other end are connect with the reset spring pressing plate, and the reset spring pressing plate and the hydraulic anchor ontology are solid Fixed connection, the slips cavity is connected to by the completion fluid pressure channel with the drilling rod, in the completion fluid pressure channel It is provided with filter sand component, the slips is movable between the first position and the second position along the radial direction of hydraulic anchor ontology；Institute State first position are as follows: reset spring in the raw, inner wall of the slips far from described sleeve pipe；The second position are as follows: Completion fluid enters slips cavity by completion fluid pressure channel, and reset spring is in compressive state, and the restoring force of reset spring is small In the thrust of completion fluid, completion fluid pushes slips protruding, so that slips engages with the inner wall of casing.

Further, the hydraulic slotted liner technique tool further includes that hydraulic slotted liner technique spray gun pipe nipple and hydraulic slotted liner technique spray gun pipe nipple are located in Connector is connected between the hydraulic anchor and the hydraulic slotted liner technique spray gun pipe nipple by crossover sub, is arranged on the crossover sub There is the first sealing ring, the hydraulic slotted liner technique spray gun pipe nipple is located in connector with the hydraulic slotted liner technique spray gun pipe nipple and is connected together, described Hydraulic slotted liner technique spray gun pipe nipple is located between connector and the hydraulic slotted liner technique spray gun to be connected by power assembly.

Further, the hydraulic slotted liner technique spray gun pipe nipple is provided with through-hole in the pipe nipple at the top and bottom of it, described The inner wall of through-hole from top to bottom sequentially forms gathering portion, salvages bullet card chamber and is located step, the gathering portion and institute in pipe nipple Drilling rod connection is stated, the internal diameter in the gathering portion is less than the internal diameter for salvaging bullet card chamber, the internal diameter for salvaging bullet card chamber Greater than the internal diameter for being located step.

Further, the hydraulic slotted liner technique device further includes hydraulic slotted liner technique pipe nipple fishing device, the hydraulic slotted liner technique pipe nipple Fishing device includes fisher and rope, and the fisher is connect with the rope, and fisher bullet is provided on the fisher Card, the fisher bullet card pass sequentially through be statically placed in behind drilling rod, gathering portion it is described be located on step, and the fisher bullet card with The salvaging bullet card chamber is connected together；Fisher is transferred by rope, until be located at hydraulic slotted liner technique pipe nipple is located step On, after fisher bullet card blocks the salvaging bullet card chamber of hydraulic slotted liner technique spray gun pipe nipple, lifting rope can be hydraulic slotted liner technique spray gun Pipe nipple salvages well head, can not fast implement replacement hydraulic slotted liner technique spray gun pipe nipple in the case where asking sand drill bit, solve large quantities of The working efficiency problem that the nozzle of hydraulic slotted liner technique spray gun is replaced under abrasion when measuring hydraulic slotted liner technique operation.

Further, it is provided with the second sealing ring between the inner wall and the slips of the slips cavity, is provided with second Sealing ring can make the watertightness of slips cavity more preferable.

Further, multiple nozzles are evenly arranged on the hydraulic slotted liner technique spray gun.

Further, the hydraulic slotted liner technique device of the semisubmersible drilling platform or drill ship further includes preventer and pit shaft, The preventer is set to the top of the pit shaft, and shown casing is located at the lower section of the pit shaft.

Further, universal blowout preventer and ram preventer are provided in the preventer.

Further, the ram preventer is variable ram preventer or fixed ram preventer.

Further, the hydraulic slotted liner technique device of the semisubmersible drilling platform or drill ship further includes choke flow line and kill-job Pipeline, the choke flow line and kill line are connect with the preventer respectively.

Compared with prior art, the beneficial effects of the utility model are, slips is provided in the slips cavity, resets bullet Spring and reset spring pressing plate；One end of the reset spring is connect with the slips, and the other end and the reset spring pressing plate connect Connect, the slips under pressure can protruding clamping described sleeve pipe, the slips cavity pass through completion fluid pressure channel It is connect with the drilling rod, is provided with filter sand component in the completion fluid pressure channel, when hydraulic slotted liner technique tool operation, pass through complete well Liquid takes sand progress hydraulic slotted liner technique to be made slips cavity that can only pass in and out completion fluid, completion fluid is avoided to take sand by being provided with filter sand component Into in slips cavity, the gap of slips and slips cavity is filled up by sand after slips stretches out, and causes slips that can not bounce back；In addition, The present apparatus is additionally provided with sand removal drill bit, and hydraulic slotted liner technique tool may be implemented and be quickly converted with two kinds of operating conditions of sand removal in drilling rod, It avoids largely accumulating sand in drilling rod, enables sand quickly discharge upwards under the action of sand removal drill bit, avoid batch slot, bottom hole is big Sand setting is measured, while sand bottom can also be visited by sand removal drill bit, preferably improves the working efficiency of the present apparatus.

Detailed description of the invention

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing, in which:

Fig. 1 is that a kind of structure of the hydraulic slotted liner technique device of semisubmersible drilling platform or drill ship described in the utility model is shown It is intended to.

Fig. 2 is the partial enlarged view of the a-quadrant of Fig. 1.

Fig. 3 is that the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform or drill ship described in the utility model is cut with waterpower Stitch the structural schematic diagram of spray gun pipe nipple fishing device.

Fig. 4 is the partial enlarged view of the B area of Fig. 3.

In figure: 1- casing, 2- drilling rod, 3- hydraulic anchor, 4- sand removal drill bit, 6- preventer, 7- pit shaft, 8- choke flow line, 9- Kill line, 31- slips cavity, 32- slips, 33- reset spring, 34- reset spring pressing plate, 35- completion fluid pressure channel, The second sealing ring of 36-, 51- hydraulic slotted liner technique spray gun, 52- hydraulic slotted liner technique spray gun pipe nipple, 53- hydraulic slotted liner technique spray gun pipe nipple are located in and connect Head, 54- crossover sub, 55- power assembly, 61- universal blowout preventer, 62- ram preventer, 101- fisher, 102- rope, 351- filter sand component, 511- nozzle, 521- salvage bullet card chamber, 522- is located step, 523- gathering portion, 1011- fisher bullet Card, the left bullet card of 1012-, the right bullet card of 1013-, 1014- torsional spring.

Specific embodiment

It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

As shown in Figs. 1-2, the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform or drill ship, including casing 1, preventer 6, pit shaft 7, choke flow line 8 and kill line 9, the preventer 6 are set to the top of the pit shaft 7, and described sleeve pipe 1 is set to The lower section of the pit shaft 7, the choke flow line 8 and kill line 9 are connect with the preventer 6 respectively.

Specifically, tripping in has drilling rod 2, hydraulic anchor 3, sand removal drill bit 4 and hydraulic slotted liner technique tool, the brill in described sleeve pipe 1 Bar 2 is connect with the hydraulic anchor 3, and the sand removal drill bit 4 is fixedly connected with the drilling rod 2, the sand removal drill bit 4 and the waterpower Splitting tool connection.

Hydraulic slotted liner technique tool is conveyed by the drilling rod 2 of semisubmersible drilling platform or drill ship, so that the waterpower Splitting tool sequentially passes through preventer 6 and pit shaft 7 reaches the designated depth in the pit shaft 7.

Specifically, the hydraulic anchor 3 includes the hydraulic anchor ontology with through-hole in hydraulic anchor, and the drilling rod 2 passes through described Through-hole is fixedly connected with the sand removal drill bit 4 in hydraulic anchor, and multiple 31 Hes of slips cavity are provided in the hydraulic anchor ontology Completion fluid pressure channel 35 is provided with slips 32, reset spring 33 and reset spring pressing plate 34 in the slips cavity 31；It is described One end of reset spring 33 is connect with the slips 32, and the other end is connect with the reset spring pressing plate 34, the slips cavity 31 are connect by completion fluid pressure channel 35 with the drilling rod 2, are provided with filter sand component in the completion fluid pressure channel 35 351, the slips 32 is movable between the first position and the second position along the radial direction of hydraulic anchor ontology；The first position Are as follows: reset spring 33 in the raw, the inner wall of the slips 32 far from described sleeve pipe 1；The second position are as follows: completion fluid Enter slips cavity 31 by completion fluid pressure channel 35, reset spring 33 is in compressive state, the restoring force of reset spring 33 Less than the thrust of completion fluid, completion fluid pushes slips 32 protruding, so that slips 32 engages with the inner wall of casing 1.

When hydraulic slotted liner technique operation, sand is taken by completion fluid and carries out hydraulic slotted liner technique, completion fluid passes through completion fluid pressure from drilling rod 2 Channel 35 enters in slips cavity 31, and completion fluid pushes the protruding clamping casing 1 of slips 32, slips after entering slips cavity 31 32 compress reset spring 33 at this time, and after hydraulic slotted liner technique operation, the completion fluid in slips cavity 31 is logical by completion fluid pressure Road 35 returns in drilling rod 2, and slips 32 resets under the action of reset spring 33, and slips 32 unclamps clamping casing 1, to complete one A complete hydraulic slotted liner technique work.

When hydraulic slotted liner technique operation, taking sand progress hydraulic slotted liner technique by completion fluid makes card by being provided with filter sand component 351 Watt cavity 31 can only pass in and out completion fluid, avoid completion fluid from taking sand and enter in slips cavity 31, slips 32 and card after slips 32 stretches out The gap of watt cavity 31 is filled up by sand, causes slips 32 that can not bounce back；Hydraulic slotted liner technique tool and drilling rod may be implemented in sand removal drill bit 4 Two kinds of operating conditions of sand removal are quickly converted in 2, avoid largely accumulating sand in drilling rod 2, keep sand fast under the action of sand removal drill bit 4 Fast discharge upwards, avoids blocking drilling rod 2, preferably improves the working efficiency of the present apparatus.

The working principle of hydraulic anchor in the present embodiment:

Pressure outside pressure ratio drilling rod 2 when hydraulic slotted liner technique in drilling rod 2 is high, and completion fluid enters slips cavity 31, push card Watts 32 protruding, thus clamping casing 1, thus eliminate deep water platform by wave stream influenced to cause 2 cycle movement of drilling rod and 2 stretcher strain of drilling rod causes slot change in depth, so that hydraulic slotted liner technique tool is kept stringent static, slot operating condition and land are protected It holds consistent；After stopping hydraulic slotted liner technique, the pressure inside and outside drilling rod 2 is consistent, and slips 32 retracts original position in the effect of reset spring 33, complete Slips cavity 31 is discharged in well liquid.

Specifically, the hydraulic slotted liner technique tool includes that hydraulic slotted liner technique spray gun 51, hydraulic slotted liner technique spray gun pipe nipple 52 and waterpower are cut Seam spray gun pipe nipple is located in connector 53, is connected between the hydraulic anchor 3 and the hydraulic slotted liner technique spray gun pipe nipple 52 by crossover sub 54 It connects, the first sealing ring, the hydraulic slotted liner technique spray gun pipe nipple 52 and the hydraulic slotted liner technique spray gun is provided on the crossover sub 54 Pipe nipple is located in connector 53 and is connected together, and the hydraulic slotted liner technique spray gun pipe nipple is located between connector 53 and the hydraulic slotted liner technique spray gun 51 It is connected by power assembly 55.

Specifically, it is provided with the second sealing ring 36 between the inner wall and the slips 32 of the slips cavity 31, be provided with Second sealing ring 36 can make the watertightness of slips cavity 31 more preferable.

Specifically, multiple nozzles 511 are evenly arranged on the hydraulic slotted liner technique spray gun 51, are provided with multiple 511 energy of nozzle Preferably improve working efficiency.

Specifically, universal blowout preventer 61 and ram preventer 62 are provided in the preventer 6；Preventer 6 is for trying Well head is closed in the operation process such as oil, well workover, complete well, prevents gas blowout accident, full envelope and half are sealed into two kinds of functions and are combined into one The features such as body has structure simple, easy to operate, high pressure resistant, is the security seal wellhead assembly that oil field commonly prevents blowout；Stone It when oily drilling well, is mounted on casing 1 of well head, for controlling the blowout apparatus of high pressure oil, gas and water.In well oil atmospheric pressure When very high, preventer 6 can close well head and (shut), when being pressed into weighted mud out of drilling rod 2, have four-way under flashboard, alternatively Out by the mud of gas cut, increase the pressure of fluid column in well, to push down the ejection of high-pressure oil gas；Universal blowout preventer 61 is can be tight Start in anxious situation, deals with the drilling tool and empty well of any size；Rotating blowout preventer can be achieved on nozzling while drilling operation.

Specifically, the ram preventer 62 is variable ram preventer or fixed ram preventer.

Specifically, the hydraulic slotted liner technique spray gun pipe nipple 52 is provided with through-hole in the pipe nipple at the top and bottom of it, described The inner wall of through-hole from top to bottom sequentially forms gathering portion 523, salvages bullet card chamber 521 and is located step 522, the receipts in pipe nipple Hold together portion 523 to be connected to the drilling rod 2, the internal diameter in the gathering portion 523 is less than the internal diameter for salvaging bullet card chamber 521, described The internal diameter for salvaging bullet card chamber 521 is greater than the internal diameter for being located step 522.

As Figure 3-Figure 4, the hydraulic slotted liner technique device further includes hydraulic slotted liner technique spray gun pipe nipple fishing device, the waterpower Slot spray gun pipe nipple fishing device includes fisher 101 and rope 102, and the fisher 101 is connect with the rope 102, institute It states and is provided with fisher bullet card 1011 on fisher 101, the fisher bullet card 1011 engages with the salvaging bullet card chamber 521 Connection；Fisher bullet card 1011 include left bullet card 1012, right bullet card 1013 and torsional spring 1014, one end of the left bullet card 1012 with One end of the right bullet card 1013 is connected by torsional spring 1014, and the other end of left 1012 other end of bullet card and right bullet card 1013 is Free end, the torsional spring 1014 is for controlling the folder formed between the other end of left bullet card 1012 and the other end of right bullet card 1013 Angle；Fisher 101 is transferred by rope 102, until being located at being located on step 522 of hydraulic slotted liner technique spray gun pipe nipple 52, is salvaged After device bullet card 1011 blocks the salvaging bullet card chamber 521 of hydraulic slotted liner technique spray gun pipe nipple 52, lifting rope 102 can be hydraulic slotted liner technique Spray gun pipe nipple 52 salvages well head, and hydraulic slotted liner technique spray gun pipe nipple 52, solution are replaced in the case where can capable of not fast implementing sand removal drill bit 4 The certainly working efficiency problem that the nozzle 511 of hydraulic slotted liner technique spray gun 51 is replaced under abrasion in high-volume hydraulic slotted liner technique operation.

The hydraulic slotted liner technique spray gun pipe nipple 52 is provided with through-hole in the pipe nipple at the top and bottom of it, leads in the pipe nipple The inner wall in hole from top to bottom sequentially forms gathering portion 523, salvages bullet card chamber 521 and is located step 522, the gathering portion 523 It is connected to the drilling rod 2, the internal diameter in the gathering portion 523 is less than the internal diameter for salvaging bullet card chamber 521, the salvaging bullet card The internal diameter of chamber 521 is greater than the internal diameter for being located step 522.

When hydraulic slotted liner technique spray gun pipe nipple fishing device works, fisher 101 is transferred by rope 102, out of drilling rod 2 always On decentralization to hydraulic slotted liner technique spray gun pipe nipple 52, the internal diameter in gathering portion 523 is smaller, and the fisher bullet card 1011 on fisher 101 is logical When crossing the gathering portion 523 of hydraulic slotted liner technique spray gun pipe nipple 52, to contract, torsional spring 1014 is in for left bullet card 1012 and right bullet card 1013 Compressive state, after fisher bullet card 1011 reaches salvaging bullet card chamber 521, under the elastic force effect of torsional spring 1014, left bullet card 1012 and right bullet card 1013 simultaneously flick outward, make fisher bullet card 1011 block salvage bullet card chamber 521, then lift rope Hydraulic slotted liner technique spray gun pipe nipple 52 can be salvaged well head by 102.

The working principle of the present embodiment:

The completion fluid of sand is taken to the nozzle 511 of the hydraulic slotted liner technique spray gun 51, to complete slot work by the conveying of drilling rod 2 Industry, the i.e. completion fluid for taking sand of hydraulic slotted liner technique are delivered to 511 high speed ejection of nozzle of hydraulic slotted liner technique spray gun 51, shape by drilling rod 2 At high speed jet stream containing sand, the injection of jet stream containing sand Casing-Cutting 1 cuts through casing 1 under the action of water flow and grinding-material at a high speed Afterwards, jet stream containing sand continues injection cutting reservoir at a high speed, realizes casing 1 and surrounding rock stratum along axial incision, finally near wellbore zone Form a plurality of at an angle to each other, the physical gap with certain width and depth.

It should be noted that after high speed jet stream containing the sand Casing-Cutting 1 and reservoir of hydraulic slotted liner technique tool, returning fluid is from throttling Pipeline 8 or kill line 9 are recycled to ground, to complete one group of hydraulic slotted liner technique operation.

It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas Corresponding change and deformation, and all these changes and deformation all should belong to the protection of the utility model claims Within the scope of.

Claims (10)

1. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform or drill ship, it is characterised in that: including casing (1), the set Pipe (1) interior tripping in has drilling rod (2), hydraulic anchor (3), sand removal drill bit (4) and hydraulic slotted liner technique tool；The sand removal drill bit (4) and institute State the connection of hydraulic slotted liner technique tool；It is provided in the hydraulic slotted liner technique tool hydraulic slotted liner technique spray gun (51), the hydraulic anchor (3) includes Hydraulic anchor ontology with through-hole in hydraulic anchor, the drilling rod (2) connect with the hydraulic anchor (3) and sand removal drill bit (4) respectively, Multiple slips cavitys (31) and completion fluid pressure channel (35) are provided in the hydraulic anchor ontology, the slips cavity (31) is interior It is provided with slips (32), reset spring (33) and reset spring pressing plate (34)；One end of the reset spring (33) and the card Watt (32) connection, the other end are connect with the reset spring pressing plate (34), the reset spring pressing plate (34) and the hydraulic anchor Ontology is fixedly connected, and the slips cavity (31) is connected to by the completion fluid pressure channel (35) with the drilling rod (2), described Filter sand component (351) are provided in completion fluid pressure channel (35)；The slips (32) exists along the radial direction of hydraulic anchor ontology It is movable between first position and the second position；The first position are as follows: reset spring (33) in the raw, the slips (32) far from the inner wall of described sleeve pipe (1)；The second position are as follows: completion fluid enters slips by completion fluid pressure channel (35) Cavity (31), reset spring (33) are in compressive state, and the restoring force of reset spring (33) is less than the thrust of completion fluid, completion fluid Push slips (32) protruding, so that slips (32) engages with the inner wall of casing (1).

2. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 1 or drill ship, it is characterised in that: The hydraulic slotted liner technique tool further includes that hydraulic slotted liner technique spray gun pipe nipple (52) and hydraulic slotted liner technique spray gun pipe nipple are located in connector (53), described It is connect between hydraulic anchor (3) and the hydraulic slotted liner technique spray gun pipe nipple (52) by crossover sub (54), the crossover sub (54) On be provided with the first sealing ring, the hydraulic slotted liner technique spray gun pipe nipple (52) and the hydraulic slotted liner technique spray gun pipe nipple are located in connector (53) It is connected together, the hydraulic slotted liner technique spray gun pipe nipple is located between connector (53) and the hydraulic slotted liner technique spray gun (51) total by power It is connected at (55).

3. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 2 or drill ship, it is characterised in that: The hydraulic slotted liner technique spray gun pipe nipple (52) is provided with through-hole in the pipe nipple at the top and bottom of it, and through-hole is interior in the pipe nipple Wall from top to bottom sequentially forms gathering portion (523), salvages bullet card chamber (521) and be located step (522), the gathering portion (523) it being connected to the drilling rod (2), the internal diameter of the gathering portion (523) is less than the internal diameter for salvaging bullet card chamber (521), The internal diameter for salvaging bullet card chamber (521) is greater than the internal diameter for being located step (522).

4. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 3 or drill ship, it is characterised in that: It further include hydraulic slotted liner technique pipe nipple fishing device, the hydraulic slotted liner technique pipe nipple fishing device includes fisher (101) and rope (102), the fisher (101) connect with the rope (102), is provided with fisher bullet card on the fisher (101) (1011), the fisher bullet card (1011), which passes sequentially through to be statically placed in behind drilling rod (2), gathering portion (523), described is located step (522) on, and the fisher bullet card (1011) is connected together with the salvaging bullet card chamber (521).

5. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 1 or drill ship, it is characterised in that: The second sealing ring (36) are provided between the inner wall and the slips (32) of the slips cavity (31).

6. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 1 or drill ship, it is characterised in that: Multiple nozzles (511) are evenly arranged on the hydraulic slotted liner technique spray gun (51).

7. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 1 or drill ship, it is characterised in that: It further include preventer (6) and pit shaft (7), the preventer (6) is set to the top of the pit shaft (7), and shown casing (1) is located at The lower section of the pit shaft (7).

8. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 7 or drill ship, it is characterised in that: Universal blowout preventer (61) and ram preventer (62) are provided in the preventer (6).

9. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 8 or drill ship, it is characterised in that: The ram preventer (62) is variable ram preventer or fixed ram preventer.

10. the hydraulic slotted liner technique device of a kind of semisubmersible drilling platform according to claim 9 or drill ship, feature exist In: further include choke flow line (8) and kill line (9), the choke flow line (8) and kill line (9) respectively with the blowout prevention Device (6) connection.