CN203476248U - Semi-active type crown block heave compensation device - Google Patents

Semi-active type crown block heave compensation device Download PDF

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Publication number
CN203476248U
CN203476248U CN201320614373.9U CN201320614373U CN203476248U CN 203476248 U CN203476248 U CN 203476248U CN 201320614373 U CN201320614373 U CN 201320614373U CN 203476248 U CN203476248 U CN 203476248U
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CN
China
Prior art keywords
arm
swing arm
vehicle frame
crown
overhead traveling
Prior art date
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CN201320614373.9U
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Chinese (zh)
Inventor
吕岩
李健
杨琼
高杭
李志刚
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四川宏华石油设备有限公司
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Priority to CN201320614373.9U priority Critical patent/CN203476248U/en
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Publication of CN203476248U publication Critical patent/CN203476248U/en

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Abstract

The utility mode relates to the field of offshore drilling, in particular to a semi-active type crown block heave compensation device which comprises a crown block frame, hydraulic cylinder assemblies, a floating crown block module and side rocking arms. The hydraulic cylinder assemblies are installed on the crown block frame, the floating crown block module is installed in the crown block frame and connected with the hydraulic cylinder assemblies, and the side rocking arms are installed on the two sides of the crown block frame. The crown block frame is installed on a crown block platform, platform laying assemblies are arranged around the crown block platform, and the side rocking arms are connected between the floating crown block module and the platform laying assemblies. The hydraulic cylinder assemblies comprise a drive cylinder assembly and a driven cylinder assembly, and driven compensation hydraulic cylinders are connected between the floating crown block and the crown block frame. The drive cylinder assembly is connected between the floating crown block module and the crown block frame. The semi-active type crown block heave compensation device has the advantages of being little in needed energy compared with active compensation, high in control precision compared with passive compensation, more convenient to use and longer in service life.

Description

Half active crown-block heave compensator

Technical field

The utility model relates to marine drilling field, particularly a kind of half active crown-block heave compensator.

Background technology

the floating drilling platform that marine drilling adopts will produce periodic heave movement under the effect of wave, thereby being produced, drill string moves back and forth the variation that causes Bottom Hole Bit Weight In A, even can make drill bit depart from shaft bottom, affect drilling efficiency, reduce drill bit and Life of drill rod, cause handling safety hidden danger, under bad weather, even cause creeping into and to stop work.Crown-block heave compensator is applied to marine floating type well system, can compensate drill string heave movement, keeps the pressure of the drill stable, reduces the downtime, reduces drilling cost.

On floating drilling platform, heave compensation way mainly contains on telescopic drill rod heave compensation, dead line, to install to install between heave compensator, tourist bus and hook and on heave compensator, overhead traveling crane, installs the various ways such as heave compensator, winch heave compensation, Ram-Rig hydraulic drill rig Hoisting System heave compensation, now mainly be divided into Active Compensation and passive compensation way, the required process more complicated of Active Compensation mode, institute's energy requirement is more, and passive compensation way precision is lower.

Utility model content

The problem existing for prior art, goal of the invention of the present utility model be to provide a kind of high compared with the required little energy of Active Compensation, more passive compensation control accuracy, use the half active crown-block heave compensator more convenient, the life-span is longer.

To achieve these goals, the technical solution adopted in the utility model is:

A kind of half active crown-block heave compensator, it comprises: day vehicle frame, be arranged on fluid cylinder assembly on day vehicle frame, be installed in described day vehicle frame and the unsteady overhead traveling crane module being connected with described fluid cylinder assembly, be installed on the side Swing Arm of vehicle frame both sides, described sky, within described day, vehicle frame is arranged on crown's nest, described crown's nest is provided with paving platform assembly around, and described side Swing Arm is connected between described unsteady overhead traveling crane module and described paving platform assembly; Described fluid cylinder assembly comprises: active cylinder assembly, passive cylinder assembly, described passive cylinder assembly comprises two passive compensation fluid cylinders, two described passive compensation fluid cylinders are vertically mounted in described day vehicle frame and are arranged symmetrically with the central axis of described day vehicle frame, and described passive compensation fluid cylinder is connected between described unsteady overhead traveling crane module and described sky vehicle frame; Described active cylinder assembly is arranged on the central axis direction of described day vehicle frame, and its lower end is connected with described unsteady overhead traveling crane module; Adopt in this way, compared with the required little energy of Active Compensation, more passive compensation control accuracy is high.

As preferred version of the present utility model, described overhead traveling crane top of the trellis and crown's nest bottom are provided with buffer with described unsteady overhead traveling crane module opposite position, the described buffer that is installed on top is cushion cylinder, avoids or alleviates float overhead traveling crane module and tour vehicle systems shock to sky vehicle frame when maloperation or the system failure.

As preferred version of the present utility model, on described side Swing Arm, the method for wearing of drilling well rope adopts along wearing, on described side Swing Arm, directive wheel is installed, the contact position of described drilling well rope and described directive wheel is all in the side away from described day vehicle frame, this wire rope handling method can guarantee that the cornerite of wire rope on pulley is constant at an arbitrary position, thereby guarantee that the rope capacity being wrapped on pulley and on Swing Arm is certain value, reduce the wearing and tearing of drilling well rope, be better than existing " S " type and wear method.

As preferred version of the present utility model, within described day, vehicle frame inside is provided with rail assembly, described unsteady overhead traveling crane module is engaged on described rail assembly by assembly pulley, have that autokinesis high, low speed robust motion is good, positioning precision is high, wearing and tearing less, long feature of life-span.。

As preferred version of the present utility model, described side Swing Arm comprises dead line side Swing Arm, fast line side Swing Arm, described dead line side Swing Arm comprises arm A, arm B, described fast line side Swing Arm comprises arm C, arm D, described arm A is connected with arm B, described arm C is connected with arm D, described arm A, arm C are connected with described unsteady overhead traveling crane module side respectively, its link position is about the overhead traveling crane module centers axial symmetry of floating, described arm B, arm D are connected with described paving platform assembly, and its link position is about the overhead traveling crane module centers axial symmetry of floating; On described side Swing Arm, all tie points place is all provided with directive wheel, all arms and directive wheel that described side Swing Arm is positioned at day vehicle frame homonymy are all arranged on vertical direction same plane, described dead line side Swing Arm, described fast line side Swing Arm that plane is set is parallel to each other.

As preferred version of the present utility model, described passive cylinder assembly is fixed on the top structure on described crown's nest top by flange, and described active cylinder assembly is arranged on described top structure, is convenient to whole dismounting maintenance, reduces the wearing and tearing of day vehicle frame.

As preferred version of the present utility model, described crown's nest top is provided with hoisting beam, for overhauling associated components.

As preferred version of the present utility model, described crown's nest bottom is provided with some hangers, meets rig floor puffer, swims the requirement of hanging installation, debugging suspention.

As preferred version of the present utility model, described dead line side Swing Arm, fast line side Swing Arm and described unsteady overhead traveling crane module are hinged, and hinged place is bolted reinforcing.

As preferred version of the present utility model, described rail assembly comprises four guide rails, at vertical direction, with described unsteady overhead traveling crane module centers axial symmetry, installs, and described four guide rails are bolted and are fixed on described day vehicle frame, have increased guide rail rigidity.

In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:

1,, compared with the required little energy of Active Compensation, more passive compensation control accuracy is high.

2, use more convenient, the life-span is longer.

Accompanying drawing explanation

Fig. 1 is elevation of the present utility model.

Fig. 2 is lateral view of the present utility model.

Fig. 3 is top view of the present utility model.

Mark in figure: 1-active cylinder assembly, the passive firm assembly of 2-, 3-cage ladder assembly, 4-dead line side Swing Arm, 5-drilling well rope, 6-paving platform assembly, 7-buffer, 8-crown's nest, 9-fast line side Swing Arm, 10-days vehicle frames, the 11-overhead traveling crane module of floating, 12-top structure, 13-rail assembly, 14-cushion cylinder, 15-hoisting beam, 16-arm A, 17-arm B, 18-arm C, 19-arm D.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

embodiment 1

According to Fig. 1, Fig. 2, Fig. 3, a half active crown-block heave compensator, it comprises: active cylinder assembly 1, passive cylinder assembly 2, cage ladder assembly 3, dead line side Swing Arm 4, drilling well rope 5, paving platform assembly 6, buffer 7, crown's nest 8, fast line side Swing Arm 9, day vehicle frame 10, unsteady overhead traveling crane module 11, top structure 12, rail assembly 13, cushion cylinder 14, hoisting beam 15.

The main structure body framework of overhead traveling crane compensation arrangement is by crown's nest 8, it vehicle frame 10, top structure 12, rail assembly 13, cage ladder assembly 3, paving platform assembly 6 forms, paving platform assembly 6 is arranged on around crown's nest 8, dead line side Swing Arm 4 and fast line side Swing Arm 9 one end are connected on paving platform assembly 6, the other end is connected to and floats in overhead traveling crane module 11, on described side Swing Arm, the method for wearing of drilling well rope 5 adopts along wearing, on described side Swing Arm, directive wheel is installed, the contact position of described drilling well rope 5 and described directive wheel is all in the side away from described day vehicle frame 10, described dead line side Swing Arm 4, fast line side Swing Arm 9 is hinged with described unsteady overhead traveling crane module 11, hinged place is bolted reinforcing, the pull bar floating on overhead traveling crane module 11 two ends and passive cylinder assembly 2 links together by bearing pin, and assembly pulley, tourist bus assembly pulley and dead line side Swing Arm 4 that drilling well rope 5 is walked around fast line side Swing Arm 9, the overhead traveling crane module 11 of floating by well drilling hoist are fixed on dead line anchor afterwards, described passive cylinder assembly 2 comprises two passive compensation fluid cylinders, two described passive compensation fluid cylinders are vertically mounted in described day vehicle frame 10 and are arranged symmetrically with the central axis of described day vehicle frame 10, and described passive compensation fluid cylinder is connected between described unsteady overhead traveling crane module 11 and described sky vehicle frame 10, described active cylinder assembly 1 is arranged on the central axis direction of described day vehicle frame 10, and its lower end is connected with described unsteady overhead traveling crane module 11, described passive cylinder assembly 2 is fixed on the top structure 12 on day vehicle frame 10 by flange, fluid cylinder is connected with Hydraulic Station by hydraulic line, and the fluid cylinder moving under the effect of control system in passive cylinder assembly 2, thereby pull the overhead traveling crane module 11 of floating along rail assembly 13 along with hull heave is done accordingly and moved.Active cylinder assembly 1 cylinder body is arranged on top structure 12 tops by universal hinge, and tighten with guy wire, active cylinder piston boom end is connected with unsteady overhead traveling crane module 11 bearing pins, in compensation work process, by active cylinder assembly 1, overcome the frictional dissipation of compensation device system inside, thereby raising compensation precision, to be suitable for the drilling condition that compensation precision is had relatively high expectations.Cage ladder assembly 3 can lead to top structure 12 from overhead traveling crane, and hoisting beam 15 is arranged on top structure 12, and its position is directly over dead line side Swing Arm 4 and fast line side Swing Arm 9; Crown's nest 8 bottoms and day vehicle frame 10 tops are connected with respectively two buffers 7 by bolt; hole axis tilts to put relatively; prevent collision; the described buffer 7 that is installed on day vehicle frame 10 tops is cushion cylinder 14; cushion cylinder 14 is bolted on top structure 12; preventing that hook carries diminishes suddenly or pressure increases suddenly the shock that causes fluid cylinder fast rise to produce, protection day vehicle frame 10 main bodys.

Within described day, vehicle frame 10 inside are provided with rail assembly 13, described unsteady overhead traveling crane module 11 is engaged on described rail assembly 13 by assembly pulley, described rail assembly 13 comprises four guide rails, at vertical direction, with described unsteady overhead traveling crane module 11 central axiss symmetries, install, described four guide rails are bolted and are fixed on described day vehicle frame 10, and described overhead traveling crane bottom is provided with some hangers.

Described dead line side Swing Arm 4 comprises arm A16, arm B17, described fast line side Swing Arm 9 comprises arm C18, arm D19, described arm A16 is connected with arm B17, described arm C18 is connected with arm D19, described arm A16, arm C18 are connected with described unsteady overhead traveling crane module 11 sides respectively, its link position is symmetrical about overhead traveling crane module 11 central axiss that float, and described arm B17, arm D19 are connected with described paving platform assembly 6, and its link position is symmetrical about overhead traveling crane module 11 central axiss that float; On described side Swing Arm, all tie points place is all provided with directive wheel, all arms and directive wheel that described side Swing Arm is positioned at day vehicle frame 10 homonymies are all arranged on vertical direction same plane, described dead line side Swing Arm 4, described fast line side Swing Arm 9 that plane is set is parallel to each other.

During work, when hull rises, the overhead traveling crane module 11 of floating moves downward with respect to bucking-out system sky vehicle frame 10, the smaller volume of passive compensation fluid cylinder cavity of resorption at this moment, and liquid wherein is just pressed towards accumulator, makes gas volume compression in accumulator.When hull declines, situation is just in time contrary, and the overhead traveling crane module 11 of floating moves upward with respect to bucking-out system sky vehicle frame 10, makes gas expansion in accumulator, and oil is pushed back fluid cylinder again.

While making a trip, have will float overhead traveling crane module 11 of locking device to pin not with making a trip and move up and down, lower boring after the tension value of crown-block heave compensator is transferred to required size and is connected drill string, until drill bit is transferred to bottom hole location.Drill bit suffers behind shaft bottom, continues to transfer travelling block and makes near the stroke of crown-block heave compensator puts therein.Therefore, when carrying drill string from slips, the piston rod of expansion loop can all stretch out (or retraction), and the overhead traveling crane module 11 of floating is fixed on crown's nest 8.When drill bit arrives shaft bottom and is sitting in shaft bottom, the piston rod of expansion loop starts to retract, and the outstanding power of holding drill string of expansion loop equals its tension force.This power (the pressure of the drill) that just makes to act on drill bit equals the poor of drill string weight and expansion loop tension force, as originally calculating.Issue travelling block, drill string heave compensator is worked near its midstroke.When drill bit creeps into downwards, driller continues to transfer progressively travelling block, so that the stroke of crown-block heave compensator maintains near its mid point.As long as crown-block heave compensator is worked in its stroke limit, it will control the pressure of the drill, and the pressure of the drill is maintained in previously selected value.

The Tensity size of crown-block heave compensator is that the oil pressure of being controlled by pressure-air in cylinder internal gas pressure or accumulator determines.The accumulator that the high pressure gas holder of large volume directly communicates with crown-block heave compensator by pipeline is connected, and more pressure-air is filled with in accumulator, and tension force just increases; Otherwise air is entered to atmosphere from high pressure gas holder, and tension force just reduces.While normally creeping into, by pneumatic control valve, control gas pressure in accumulator, to keep Bottom Hole Bit Weight In A or to regulate the pressure of the drill.

Under processing under down-hole accident or towage operating mode, can by control valve, stop the work of fluid cylinder, the overhead traveling crane that makes to float is fixed on crownblock beam.

Underground work is such as well logging and transfer preventer operation etc., the stability that need to keep underground operation tool or the relative shaft bottom of device location, all need to open Active Compensation system, as fishing, sliding sleeve operation, lower packet, shaft bottom reaming hole, well logging and gravel are filled underground work etc.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. one and half active crown-block heave compensators, it comprises: day vehicle frame, be arranged on the fluid cylinder assembly on day vehicle frame, be installed in described day vehicle frame and the unsteady overhead traveling crane module being connected with described fluid cylinder assembly, be installed on the side Swing Arm of described day vehicle frame both sides, within described day, vehicle frame is arranged on crown's nest, described crown's nest is provided with paving platform assembly around, described side Swing Arm is connected between described unsteady overhead traveling crane module and described paving platform assembly, it is characterized in that, described fluid cylinder assembly comprises: active cylinder assembly, passive cylinder assembly, described passive cylinder assembly comprises two passive compensation fluid cylinders, two described passive compensation fluid cylinders are vertically mounted in described day vehicle frame and are arranged symmetrically with the central axis of described day vehicle frame, described passive compensation fluid cylinder is connected between described unsteady overhead traveling crane module and described day vehicle frame, described active cylinder assembly is arranged on the central axis direction of described day vehicle frame, and its lower end is connected with described unsteady overhead traveling crane module.
2. half active crown-block heave compensator according to claim 1, it is characterized in that, described overhead traveling crane top of the trellis and crown's nest bottom are provided with buffer with described unsteady overhead traveling crane module opposite position, and the described buffer that is installed on top is cushion cylinder.
3. half active crown-block heave compensator according to claim 1, it is characterized in that, on described side Swing Arm, the method for wearing of drilling well rope adopts along wearing, and on described side Swing Arm, directive wheel is installed, and the contact position of described drilling well rope and described directive wheel is all in the side away from described day vehicle frame.
4. half active crown-block heave compensator according to claim 1, is characterized in that, within described day, vehicle frame inside is provided with rail assembly, and described unsteady overhead traveling crane module is engaged on described rail assembly by assembly pulley.
5. according to half active crown-block heave compensator described in claim 1 or 2 or 3 or 4, it is characterized in that, described side Swing Arm comprises dead line side Swing Arm, fast line side Swing Arm, described dead line side Swing Arm comprises arm A, arm B, described fast line side Swing Arm comprises arm C, arm D, described arm A is connected with arm B, described arm C is connected with arm D, described arm A, arm C is connected with described unsteady overhead traveling crane module side respectively, its link position is about the overhead traveling crane module centers axial symmetry of floating, described arm B, arm D is connected with described paving platform assembly, its link position is about the overhead traveling crane module centers axial symmetry of floating, on described side Swing Arm, all tie points place is all provided with directive wheel, all arms and directive wheel that described side Swing Arm is positioned at day vehicle frame homonymy are all arranged on vertical direction same plane, described dead line side Swing Arm, described fast line side Swing Arm that plane is set is parallel to each other.
6. according to half active crown-block heave compensator described in claim 1 or 2 or 3 or 4, it is characterized in that, described passive cylinder assembly is fixed on the top structure on described crown's nest top by flange, and described active cylinder assembly is arranged on described top structure.
7. according to half active crown-block heave compensator described in claim 1 or 2 or 3 or 4, it is characterized in that, described crown's nest top is provided with hoisting beam.
8. according to half active crown-block heave compensator described in claim 1 or 2 or 3 or 4, it is characterized in that, described crown's nest bottom is provided with some hangers.
9. half active crown-block heave compensator according to claim 5, is characterized in that, described dead line side Swing Arm, fast line side Swing Arm and described unsteady overhead traveling crane module are hinged, and hinged place is bolted reinforcing.
10. half active crown-block heave compensator according to claim 4, it is characterized in that, described rail assembly comprises four guide rails, at vertical direction, with described unsteady overhead traveling crane module centers axial symmetry, installs, and described four guide rails are bolted and are fixed on described day vehicle frame.
CN201320614373.9U 2013-09-30 2013-09-30 Semi-active type crown block heave compensation device CN203476248U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104912494A (en) * 2015-05-27 2015-09-16 中国船舶重工集团公司第七0四研究所 Deep-water drilling overhead traveling crane type wave compensation device
WO2015189368A3 (en) * 2014-06-13 2016-01-28 Cameron Sense AS Winches and hoisting systems with heave compensation
US9567814B2 (en) 2014-06-13 2017-02-14 Cameron Sense AS Hoisting systems with heave compensation
CN106672802A (en) * 2016-07-27 2017-05-17 西南石油大学 Structural design method for locking guiding system of crown block compensation device
CN106715315A (en) * 2014-09-16 2017-05-24 Ifp新能源公司 System for controlling the movement of a load
CN106801585A (en) * 2017-01-10 2017-06-06 中国石油大学(华东) A kind of floating drilling platform semi-active type crown-block heave compensator
CN106837207A (en) * 2017-02-20 2017-06-13 四川宏华石油设备有限公司 Half active crown-block heave compensator
CN106871967A (en) * 2017-03-29 2017-06-20 西南石油大学 A kind of crown-block heave compensator monitoring device and its scheme
CN108204209A (en) * 2016-12-19 2018-06-26 Ifp新能源公司 For mobile unit it is suspended load, there is the motion compensating system of master cylinder and countercylinder
US10081988B2 (en) 2014-06-13 2018-09-25 Cameron Sense AS Heave compensation winches
CN109899441A (en) * 2019-03-26 2019-06-18 上海海事大学 The distribution method of main passive hydraulic cylinder capacity in a kind of half active wave compensation system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015189368A3 (en) * 2014-06-13 2016-01-28 Cameron Sense AS Winches and hoisting systems with heave compensation
US9567814B2 (en) 2014-06-13 2017-02-14 Cameron Sense AS Hoisting systems with heave compensation
US10081988B2 (en) 2014-06-13 2018-09-25 Cameron Sense AS Heave compensation winches
CN106715315A (en) * 2014-09-16 2017-05-24 Ifp新能源公司 System for controlling the movement of a load
CN104912494A (en) * 2015-05-27 2015-09-16 中国船舶重工集团公司第七0四研究所 Deep-water drilling overhead traveling crane type wave compensation device
CN106672802A (en) * 2016-07-27 2017-05-17 西南石油大学 Structural design method for locking guiding system of crown block compensation device
CN108204209A (en) * 2016-12-19 2018-06-26 Ifp新能源公司 For mobile unit it is suspended load, there is the motion compensating system of master cylinder and countercylinder
CN106801585A (en) * 2017-01-10 2017-06-06 中国石油大学(华东) A kind of floating drilling platform semi-active type crown-block heave compensator
CN106837207A (en) * 2017-02-20 2017-06-13 四川宏华石油设备有限公司 Half active crown-block heave compensator
CN106871967A (en) * 2017-03-29 2017-06-20 西南石油大学 A kind of crown-block heave compensator monitoring device and its scheme
CN106871967B (en) * 2017-03-29 2020-04-21 西南石油大学 Crown block heave compensation device monitoring device and scheme thereof
CN109899441A (en) * 2019-03-26 2019-06-18 上海海事大学 The distribution method of main passive hydraulic cylinder capacity in a kind of half active wave compensation system

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