CN114459785B - Integrated testing device for deepwater drilling and completion system and application method thereof - Google Patents

Integrated testing device for deepwater drilling and completion system and application method thereof Download PDF

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Publication number
CN114459785B
CN114459785B CN202111358757.4A CN202111358757A CN114459785B CN 114459785 B CN114459785 B CN 114459785B CN 202111358757 A CN202111358757 A CN 202111358757A CN 114459785 B CN114459785 B CN 114459785B
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China
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test
wellhead
base
pile
christmas tree
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CN114459785A (en
Inventor
孟文波
刘书杰
黄熠
李磊
赵苏文
黄亮
董钊
张健
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China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
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China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass

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  • General Physics & Mathematics (AREA)
  • Earth Drilling (AREA)

Abstract

The invention provides an integrated testing device of a deepwater drilling and completion system and a use method thereof, wherein a fixed supporting pin and a movable supporting pin are arranged on the upper surface of a fixed base; the lower surface of the lifting base is arranged on the upper surface of the supporting base, the simulation wellhead is arranged on the upper surface of the lifting base, the long guide pile and the short guide pile are respectively arranged at the diagonal positions of the movable base, the short inspection pile is sleeved outside the long guide pile and the short guide pile, and the long inspection pile is arranged at the diagonal position of the movable base where the guide pile is not arranged. The device realizes the quick conversion of the underwater Christmas tree test mode and the underwater wellhead test mode by connecting different upper components, and realizes multiple functions of pressure test, inclination test, appearance inspection and control system test, stacking test, service tool installation and recovery test and the like.

Description

Integrated testing device for deepwater drilling and completion system and application method thereof
Technical Field
The invention relates to the technical field of petroleum and natural gas drilling and production equipment, in particular to an integrated testing device for a deep water drilling and completion system and a using method thereof.
Background
With the deep progress of deep water oil and gas filling exploration and development in China, the types and the number of facilities of submarine exploration and development equipment are more and more, and the requirements and requirements on matched detection equipment and detection technology of submarine equipment are higher and higher.
The underwater wellhead and the underwater christmas tree are a key ring in the underwater production system, and in order to simulate the installation of the underwater wellhead and the underwater christmas tree, verify the sealing performance of the underwater wellhead and the underwater christmas tree and research the operability of a service tool under an inclined working condition in a land or pool environment, special detection equipment is often required to be customized for testing.
Because the external dimensions, the weight, the structural principle and the pipeline arrangement of the underwater wellhead and the underwater Christmas tree of different manufacturers are different, no general special detection equipment can test the underwater wellhead and the underwater Christmas tree of different manufacturers at present.
Disclosure of Invention
The invention overcomes the defects in the prior art, and provides an integrated testing device for a deep water drilling and completion system and a using method thereof.
The aim of the invention is achieved by the following technical scheme.
The integrated testing device for the deepwater drilling and completing system comprises a fixed base, a movable base and a supporting base, wherein a fixed supporting pin and a movable supporting pin are arranged on the upper surface of the fixed base, the movable base is connected with the fixed base through the fixed supporting pin and the movable supporting pin, and the supporting base is fixedly arranged on the upper surface of the movable base;
The underwater Christmas tree test mode comprises a lifting base, a simulated wellhead, a long guide pile, a short inspection pile and a long inspection pile, wherein the lower surface of the lifting base is arranged on the upper surface of the supporting base, the simulated wellhead is arranged on the upper surface of the lifting base, the long guide pile and the short guide pile are respectively arranged at the diagonal positions of the movable base, the short inspection pile is sleeved on the outer sides of the long guide pile and the short guide pile, the long inspection pile is arranged at the diagonal positions of the movable base, and after the underwater Christmas tree is connected by the device, the test device enters the underwater Christmas tree test mode and can perform four tests including pressure test, inclination test, appearance inspection and control system test;
The under water wellhead test mode comprises a centralizing sleeve, a wellhead connector, a raising nipple, a blind flange, a top hydraulic cylinder, a lower supporting body, an upper supporting body and an operation platform, wherein the lower surface of the centralizing sleeve is installed on the upper surface of a supporting base, a test wellhead is placed in the centralizing sleeve, the wellhead connector, the raising nipple, the blind flange and the top hydraulic cylinder are sequentially arranged at the head end of the test wellhead from bottom to top, four groups of lower supporting bodies are installed on the upper surface of the fixing base, the lower portion of the upper supporting body is sleeved on the upper portion of the lower supporting body, and the operation platform is installed on the upper supporting body.
The lower part of the inner wall of the simulation wellhead is provided with an adjusting ring, the inner wall of the simulation wellhead above the adjusting ring is provided with a bearing ring, and the bearing ring is provided with a simulation casing hanger for underwater christmas trees of different models and sizes.
The lower part of the outer wall of the centralizing sleeve is uniformly provided with lower centralizing top wire holes penetrating through the side wall of the centralizing sleeve, the upper part of the outer wall of the centralizing sleeve is uniformly provided with upper centralizing top wire holes penetrating through the side wall of the centralizing sleeve, the lower centralizing top wire penetrates through the lower centralizing top wire holes to be in contact with the outer wall of the testing wellhead, and the upper centralizing top wire penetrates through the upper centralizing top wire holes to be in contact with the outer wall of the testing wellhead so as to realize the purpose that the device can be suitable for underwater wellheads of different types and sizes.
The operation platform adopts two formula components of a whole that can function independently structure, every the components of a whole that can function independently structure adopts concave shape structure can be linked into a whole of returning the font through the bolt, forms operation platform promptly operation platform's upper surface edge is provided with safety barrier operation platform's lower surface four corners department welds 4 group's upper supporting body, upper supporting body pass through the midbody with lower support body suit is connected to fix unable adjustment base's upper surface department, operation platform's upper surface is provided with the spud pile for provide rotatory supporting point one side of spud pile is provided with the fixed lug operation platform's inboard is provided with 2 group's backup pads, is used for preventing that the test well head from empting be provided with in the backup pad and right the jackscrew for the test well head is right.
The length of the intermediate body exposed out of the upper support body is adjusted, so that the aim of adjusting the height of the working platform is fulfilled.
The wellhead connector forms a seal with the test wellhead through a sealing steel ring arranged on the upper surface of the test wellhead.
The fixed base and the movable base can rotate around the fixed supporting pin, and the purpose of adjusting the inclination angle of the movable base is achieved by placing a cushion block between the fixed base and the movable base.
The long guide pile, the short inspection pile, the short guide pile and the long inspection pile can be used separately or in combination.
The tool driving shaft is connected between the top hydraulic cylinder and the service tool for testing and is used for simulating lifting and lowering the service tool for testing during the installation of the service tool.
The application method of the integrated testing device of the deepwater drilling completion system comprises the following steps:
subsea tree test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin, connecting a hoisting lock on one side of the movable base, which is close to the movable supporting pin, so that the movable base rotates around the fixed supporting pin, a certain gap is formed between the movable base and the fixed base, a rated number of cushion blocks are put into the gap between the movable base and the fixed base, the hoisting lock is loosened, the movable base is seated on the cushion blocks, a certain angle is formed between the movable base and the fixed base, and hoisting locking is removed;
Step 2, installing a simulated wellhead
The method comprises the steps of installing a lifting base on a supporting base, installing a simulated wellhead on the lifting base, installing 2 long inspection piles on two diagonal positions of a movable base, installing long guide piles and short guide piles on the two remaining diagonal positions, and sleeving 2 short inspection piles outside the long guide piles and the short guide piles;
Step 3, butting underwater Christmas tree
Lifting the underwater christmas tree by using a lifting lock, moving the underwater christmas tree to the position above a test platform, adjusting the position of the underwater christmas tree, enabling a guide pile hole of the underwater christmas tree to be aligned with a long guide pile arranged on a movable base, slowly draining the underwater christmas tree, enabling the long guide pile to enter the guide pile hole of the underwater christmas tree for about 30cm, adjusting the position of the underwater christmas tree, enabling the guide pile hole of the underwater christmas tree to be aligned with a short guide pile arranged on the movable base, slowly draining the underwater christmas tree, enabling the short guide pile to enter the guide pile hole of the underwater christmas tree, continuing to slowly drain the underwater christmas tree until the underwater christmas tree completely falls on a long inspection pile and a short inspection pile, and removing the lifting lock;
Step 4, testing the underwater Christmas tree
Performing pressure test, inclination test, appearance inspection and control system test on the underwater Christmas tree according to the test requirement;
underwater wellhead test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin, connecting a hoisting lock on one side of the movable base, which is close to the movable supporting pin, so that the movable base rotates around the fixed supporting pin, a certain gap is formed between the movable base and the fixed base, a rated number of cushion blocks are put into the gap between the movable base and the fixed base, the hoisting lock is loosened, the movable base is seated on the cushion blocks, a certain angle is formed between the movable base and the fixed base, and hoisting locking is removed;
Step 2, installing a simulated wellhead
Installing a centralizing sleeve on a supporting base, placing a testing wellhead in the centralizing sleeve by using a hoisting lockset, installing a lower centralizing jackscrew and an upper centralizing jackscrew to centralize the testing wellhead, and sequentially stacking and connecting a wellhead connector and a lifting pup joint on the testing wellhead;
Step 3, assembling operation platform
The method comprises the steps of overturning an operation platform, installing an upper support body on the lower surface of the operation platform, installing a lower support body outside a fixed base, using a hoisting lock, installing an intermediate body into the lower support body, overturning the operation platform with the upper support body, integrally hoisting the operation platform, moving the operation platform to the upper part of the intermediate body, adjusting the angle and the position of the operation platform to align the operation platform with the intermediate body, and lowering the operation platform to enable the intermediate body to enter the upper support body of the operation platform and be fixed, and installing components such as a safety barrier, a fixed pile, a fixed lifting lug and the like for the operation platform;
Step 4, installing service tools
Lifting a service tool, moving the service tool to the position above a test wellhead, lowering the service tool, enabling the service tool to pass through a lifting nipple and a wellhead connector, placing the service tool into the test wellhead, connecting a blind flange with the lifting nipple, enabling a tool driving shaft to pass through the blind flange, connecting the service tool with a tool driving shaft through threads, lifting a top hydraulic cylinder, moving the service tool to the position above the blind flange, enabling a mandrel of the top hydraulic cylinder to be connected with the tool driving shaft, adjusting the extending distance of the mandrel of the hydraulic cylinder, enabling the top hydraulic cylinder to be in contact with the blind flange, and connecting the top hydraulic cylinder with the blind flange through bolts;
Step 5, testing the underwater wellhead
And carrying out four tests of underwater wellhead stacking test, service tool installation recovery test, pressure test and inclination test according to test requirements.
The beneficial effects of the invention are as follows: according to the invention, through replacing accessories, the underwater wellhead and the underwater Christmas tree of different factories can be tested at the same time, so that the adaptability of the test tool is enhanced;
the cushion block can be used for simulating the working states of the underwater wellhead and the underwater Christmas tree under different inclined working conditions, and the connection performance of the underwater wellhead, the underwater Christmas tree and the service tool under the inclined working conditions is verified;
The multiple functions of pressure test, inclination test, appearance inspection and control system test, stacking test, service tool installation and recovery test and the like can be realized by connecting different upper components;
the installation and recovery process of the service tool can be completely simulated by arranging the top hydraulic cylinder.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention as it is used in subsea tree testing;
FIG. 2 is a schematic diagram of the apparatus of the present invention as it is used in subsea wellhead testing;
FIG. 3 is a schematic view of the structure of the device of the present invention in a tilt test;
In the figure: 1 is a fixed base, 2 is a movable base, 3 is a supporting base, 4 is a lifting base, 5 is a simulated wellhead, 6 is a simulated casing hanger, 7 is a bearing ring, 8 is an adjusting ring, 9 is a long guide pile, 10 is a short inspection pile, 11 is a fixed supporting pin, 12 is a movable supporting pin, 13 is a wellhead connector, 14 is a lifting nipple, 15 is a top hydraulic cylinder, 16 is a blind flange, 17 is a tool driving shaft, 18 is a test wellhead, 19 is a centralizing sleeve, 20 is a lower centralizing jackscrew, 21 is an upper centralizing jackscrew, 22 is an upper supporting body, 23 is an operating platform, 24 is a lower supporting body, 25 is a sealing steel ring, 26 is an end cover, 27 is a safety barrier, 28 is a cushion block, 29 is a short guide pile, 30 is a long inspection pile, 32 is a centralizing jackscrew, 31 is an intermediate, 35 is a fixed pile, 36 is a fixed lifting lug, and 37 is a supporting plate.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
The technical scheme of the invention is further described by specific examples.
Example 1
The integrated testing device for the deepwater drilling and completion system comprises a fixed base 1, a movable base 2 and a supporting base 3, wherein a fixed supporting pin 11 and a movable supporting pin 12 are arranged on the upper surface of the fixed base 1, the movable base 2 is connected with the fixed base 1 through the fixed supporting pin 11 and the movable supporting pin 12, and the supporting base 3 is fixedly arranged on the upper surface of the movable base 2;
The underwater christmas tree test mode comprises a lifting base 4, a simulated wellhead 5, a long guide pile 9, a short guide pile 29, a short check pile 10 and a long check pile 30, wherein the lower surface of the lifting base 4 is arranged on the upper surface of a supporting base 3, the simulated wellhead 5 is arranged on the upper surface of the lifting base 4, the long guide pile 9 and the short guide pile 29 are respectively arranged at the diagonal positions of a movable base 2, the short check pile 10 is sleeved on the outer sides of the long guide pile 9 and the short guide pile 29, the long check pile 30 is arranged at the diagonal positions of the movable base 2 without the guide pile, and after the device is connected with an underwater christmas tree, a test device enters the underwater christmas tree test mode and can perform four tests of pressure test, inclination test, appearance check and control system test;
The underwater wellhead testing mode comprises a centralizing sleeve 19, a wellhead connector 13, a raising nipple 14, a blind flange 16, a top hydraulic cylinder 15, a lower supporting body 24, an upper supporting body 22 and an operation platform 23, wherein the lower surface of the centralizing sleeve 19 is arranged on the upper surface of a supporting base 3, a testing wellhead 18 is placed in the centralizing sleeve 19, the wellhead connector 13, the raising nipple 14, the blind flange 16 and the top hydraulic cylinder 15 are sequentially arranged at the head end of the testing wellhead 18 from bottom to top, four groups of lower supporting bodies 24 are arranged on the upper surface of a fixed base 1, the lower part of the upper supporting body 22 is sleeved on the upper part of the lower supporting body 24, the operation platform 23 is arranged on the upper supporting body 22, and the device can perform four tests of underwater stacking test, service tool installation recovery test, pressure test and inclination test.
Example two
On the basis of the first embodiment, an adjusting ring 8 is arranged at the lower part of the inner wall of the simulated wellhead 5, a bearing ring 7 is arranged on the inner wall of the simulated wellhead 5 above the adjusting ring 8, and a simulated casing hanger 6 is arranged on the bearing ring 7 and is used for underwater christmas trees of different models and sizes.
The lower centralizing top wire hole penetrating through the side wall of the centralizing sleeve is uniformly formed in the lower portion of the outer wall of the centralizing sleeve 19, the upper centralizing top wire hole penetrating through the side wall of the centralizing sleeve is uniformly formed in the upper portion of the outer wall of the centralizing sleeve 19, the lower centralizing top wire 20 penetrates through the lower centralizing top wire hole to be in contact with the outer wall of the testing wellhead 18, and the upper centralizing top wire 21 penetrates through the upper centralizing top wire hole to be in contact with the outer wall of the testing wellhead 18, so that the device can be suitable for the purposes of underwater wellheads of different types and sizes.
The operation platform 23 adopts two-piece type split structures, each split structure adopts a concave-shaped structure, the split structures can be linked into a whole in a shape like a Chinese character 'Hui', namely, the operation platform 23 is formed, the safety guard 27 is arranged at the edge of the upper surface of the operation platform 23, 4 groups of upper supporting bodies 22 are welded at four corners of the lower surface of the operation platform 23, the upper supporting bodies 22 are sleeved and connected with the lower supporting bodies 24 through intermediate bodies 31 and are fixed at the upper surface of the fixed base 1, fixing piles 35 are arranged on the upper surface of the operation platform 23 and used for providing rotary supporting points, fixing lifting lugs 36 are arranged at one side of the fixing piles 35, 2 groups of supporting plates 37 are arranged at the inner side of the operation platform 23 and used for preventing the test wellhead 18 from toppling, and righting jackscrews 32 are arranged on the supporting plates 37 and used for righting the test wellhead 18.
Example III
On the basis of the second embodiment, the length of the intermediate body 31 exposed to the outside of the upper support 22 is adjusted, thereby achieving the purpose of adjusting the height of the work platform 23.
The wellhead connector 13 forms a seal with the test wellhead 18 via a sealing collar 25 disposed on the upper surface of the test wellhead 18.
The fixed base 1 and the movable base 2 can rotate around the fixed supporting pin 11, and the purpose of adjusting the inclination angle of the movable base 2 is achieved by placing the cushion block 28 between the fixed base 1 and the movable base 2.
The long guide piles 9, the short inspection piles 10, the short guide piles 29, and the long inspection piles 30 can be used either individually or in combination.
A tool drive shaft 17 is connected between the top hydraulic cylinder 15 and the service tool for testing for simulating lifting and lowering of the service tool for testing during installation of the service tool.
Example IV
The application method of the integrated testing device of the deepwater drilling completion system comprises the following steps:
subsea tree test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin 12, connecting a hoisting lock on one side of the movable base 2, which is close to the movable supporting pin 12, so that the movable base 2 rotates around the fixed supporting pin 11, a certain gap is formed between the movable base 2 and the fixed base 1, a rated number of cushion blocks 28 are put into the gap between the movable base 2 and the fixed base 1, the hoisting lock is loosened, the movable base 2 is seated on the cushion blocks 28, a certain angle is formed between the movable base 2 and the fixed base 1, and the hoisting lock is removed;
Step 2, installing a simulated wellhead
The method comprises the steps of installing a lifting base 4 on a supporting base 3, installing a simulated wellhead 5 on the lifting base 4, installing 2 long inspection piles 30 on two diagonal positions of a movable base 2, installing a long guide pile 9 and a short guide pile 29 on the remaining two diagonal positions, and sleeving 2 short inspection piles 10 outside the long guide pile 9 and the short guide pile 29;
Step 3, butting underwater Christmas tree
The underwater christmas tree is hoisted by using a hoisting lock, the position of the underwater christmas tree is adjusted to be above a test platform, the underwater christmas tree guide pile hole is aligned with a long guide pile 9 arranged on a movable base 2, the underwater christmas tree is slowly discharged, the long guide pile 9 enters the underwater christmas tree guide pile hole for about 30 cm, the position of the underwater christmas tree is adjusted, the underwater christmas tree guide pile hole is aligned with a short guide pile 29 arranged on the movable base 2, the underwater christmas tree is slowly discharged, the short guide pile 29 enters the underwater christmas tree guide pile hole, the underwater christmas tree is continuously slowly discharged until the underwater christmas tree completely falls on a long check pile 30 and a short check pile 10, and the hoisting lock is removed.
Step 4, testing the underwater Christmas tree
Performing pressure test, inclination test, appearance inspection and control system test on the underwater Christmas tree according to the test requirement;
underwater wellhead test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin 12, connecting a hoisting lock on one side of the movable base 2, which is close to the movable supporting pin 12, so that the movable base 2 rotates around the fixed supporting pin 11, a certain gap is formed between the movable base 2 and the fixed base 1, a rated number of cushion blocks 28 are put into the gap between the movable base 2 and the fixed base 1, the hoisting lock is loosened, the movable base 2 is seated on the cushion blocks 28, a certain angle is formed between the movable base 2 and the fixed base 1, and the hoisting lock is removed;
Step 2, installing a simulated wellhead
A centralizing sleeve 19 is arranged on the supporting base 3, a hoisting lockset is used for placing a testing wellhead 18 in the centralizing sleeve 19, a lower centralizing jackscrew 20 and an upper centralizing jackscrew 21 are arranged for centralizing the testing wellhead 18, and a wellhead connector 13 and a lifting pup joint 14 are sequentially stacked and connected on the testing wellhead 18;
Step 3, assembling operation platform
The working platform 23 is turned over, an upper supporting body 22 is arranged on the lower surface of the working platform 23, a lower supporting body 24 is arranged on the outer side of the fixed base 1, a hoisting lock is used, the intermediate body 33 is arranged in the lower supporting body 24, the working platform 23 with the upper supporting body 22 is turned over, the whole body is hoisted, the whole body is moved to the upper side of the intermediate body 33, the angle and the position of the working platform 23 are adjusted, the working platform 23 is aligned with the intermediate body 33, the working platform 23 is lowered, the intermediate body 33 enters the upper supporting body 22 of the working platform 23 and is fixed, and components such as a safety rail 27, a fixed pile 35, a fixed lifting lug 36 and the like are arranged for the working platform 23;
Step 4, installing service tools
Lifting a service tool, moving the service tool to the position above a test wellhead 18, lowering the service tool, enabling the service tool to pass through a lifting nipple 14 and a wellhead connector 13, placing the service tool into the test wellhead 18, connecting a blind flange 16 with the lifting nipple 14, enabling a tool driving shaft 17 to pass through the blind flange 16, connecting the service tool with threads, lifting a top hydraulic cylinder 15 to the position above the blind flange 16, enabling a mandrel of the top hydraulic cylinder 15 to be connected with the tool driving shaft 17, adjusting the extending distance of the mandrel of the hydraulic cylinder, enabling the top hydraulic cylinder 15 to be in contact with the blind flange 16, and connecting the top hydraulic cylinder 15 with the blind flange 16 through bolts;
Step 5, testing the underwater wellhead
And carrying out four tests of underwater wellhead stacking test, service tool installation recovery test, pressure test and inclination test according to test requirements.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims (9)

1. The utility model provides a deep water well completion system integrated form testing arrangement which characterized in that: the movable base is connected with the fixed base through the fixed supporting pin and the movable supporting pin, and the support base is fixedly arranged on the upper surface of the movable base;
The underwater Christmas tree test mode comprises a lifting base, a simulated wellhead, a long guide pile, a short inspection pile and a long inspection pile, wherein the lower surface of the lifting base is arranged on the upper surface of the supporting base, the simulated wellhead is arranged on the upper surface of the lifting base, the long guide pile and the short guide pile are respectively arranged at the diagonal positions of the movable base, the short inspection pile is sleeved on the outer sides of the long guide pile and the short guide pile, the long inspection pile is arranged at the diagonal positions of the movable base, and after the underwater Christmas tree is connected by the device, the test device enters the underwater Christmas tree test mode to perform four tests including pressure test, inclination test, appearance inspection and control system test;
The under water wellhead test mode comprises a centralizing sleeve, a wellhead connector, a raising nipple, a blind flange, a top hydraulic cylinder, a lower supporting body, an upper supporting body and an operation platform, wherein the lower surface of the centralizing sleeve is installed on the upper surface of a supporting base, a test wellhead is placed in the centralizing sleeve, the wellhead connector, the raising nipple, the blind flange and the top hydraulic cylinder are sequentially arranged at the head end of the test wellhead from bottom to top, four groups of lower supporting bodies are installed on the upper surface of the fixing base, the lower portion of the upper supporting body is sleeved on the upper portion of the lower supporting body, and the operation platform is installed on the upper supporting body.
2. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the lower part of the inner wall of the simulation wellhead is provided with an adjusting ring, the inner wall of the simulation wellhead above the adjusting ring is provided with a bearing ring, and the bearing ring is provided with a simulation casing hanger for underwater christmas trees of different models and sizes.
3. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the lower part of the outer wall of the centralizing sleeve is uniformly provided with lower centralizing top wire holes penetrating through the side wall of the centralizing sleeve, the upper part of the outer wall of the centralizing sleeve is uniformly provided with upper centralizing top wire holes penetrating through the side wall of the centralizing sleeve, the lower centralizing top wire penetrates through the lower centralizing top wire holes to be in contact with the outer wall of the testing wellhead, and the upper centralizing top wire penetrates through the upper centralizing top wire holes to be in contact with the outer wall of the testing wellhead so as to realize the purpose that the device can be suitable for underwater wellheads of different types and sizes.
4. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the operation platform adopts two formula components of a whole that can function independently structure, every the components of a whole that can function independently structure adopts concave shape structure can be linked into a whole of returning the font through the bolt, forms operation platform promptly operation platform's upper surface edge is provided with safety barrier operation platform's lower surface four corners department welds 4 group's upper supporting body, upper supporting body pass through the midbody with lower support body suit is connected to fix unable adjustment base's upper surface department, operation platform's upper surface is provided with the spud pile for provide rotatory supporting point one side of spud pile is provided with the fixed lug operation platform's inboard is provided with 2 group's backup pads, is used for preventing that the test well head from empting be provided with in the backup pad and right the jackscrew for the test well head is right.
5. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the wellhead connector forms a seal with the test wellhead through a sealing steel ring arranged on the upper surface of the test wellhead.
6. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the fixed base and the movable base can rotate around the fixed supporting pin, and the purpose of adjusting the inclination angle of the movable base is achieved by placing a cushion block between the fixed base and the movable base.
7. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the long guide pile, the short inspection pile, the short guide pile and the long inspection pile can be used separately or in combination.
8. The integrated testing device for a deep water drilling and completion system of claim 1, wherein: the tool driving shaft is connected between the top hydraulic cylinder and the service tool for testing and is used for simulating lifting and lowering the service tool for testing during the installation of the service tool.
9. A method of using an integrated testing device for a deep water drilling and completion system as claimed in any one of claims 1 to 8, wherein: the method comprises the following steps of:
subsea tree test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin, connecting a hoisting lock on one side of the movable base, which is close to the movable supporting pin, so that the movable base rotates around the fixed supporting pin, a certain gap is formed between the movable base and the fixed base, a rated number of cushion blocks are put into the gap between the movable base and the fixed base, the hoisting lock is loosened, the movable base is seated on the cushion blocks, a certain angle is formed between the movable base and the fixed base, and hoisting locking is removed;
Step 2, installing a simulated wellhead
The method comprises the steps of installing a lifting base on a supporting base, installing a simulated wellhead on the lifting base, installing 2 long inspection piles on two diagonal positions of a movable base, installing long guide piles and short guide piles on the two remaining diagonal positions, and sleeving 2 short inspection piles outside the long guide piles and the short guide piles;
Step 3, butting underwater Christmas tree
Lifting the underwater christmas tree by using a lifting lock, moving the underwater christmas tree to the position above a test platform, adjusting the position of the underwater christmas tree, enabling a guide pile hole of the underwater christmas tree to be aligned with a long guide pile arranged on a movable base, slowly draining the underwater christmas tree, enabling the long guide pile to enter the guide pile hole of the underwater christmas tree for 30cm, adjusting the position of the underwater christmas tree, enabling the guide pile hole of the underwater christmas tree to be aligned with a short guide pile arranged on the movable base, slowly draining the underwater christmas tree, enabling the short guide pile to enter the guide pile hole of the underwater christmas tree, continuing to slowly drain the underwater christmas tree until the underwater christmas tree completely falls on a long inspection pile and a short inspection pile, and removing the lifting lock;
Step 4, testing the underwater Christmas tree
Performing pressure test, inclination test, appearance inspection and control system test on the underwater Christmas tree according to the test requirement;
underwater wellhead test mode:
Step 1, adjusting the angle of a test platform
Removing the movable supporting pin, connecting a hoisting lock on one side of the movable base, which is close to the movable supporting pin, so that the movable base rotates around the fixed supporting pin, a certain gap is formed between the movable base and the fixed base, a rated number of cushion blocks are put into the gap between the movable base and the fixed base, the hoisting lock is loosened, the movable base is seated on the cushion blocks, a certain angle is formed between the movable base and the fixed base, and hoisting locking is removed;
Step 2, installing a simulated wellhead
Installing a centralizing sleeve on a supporting base, placing a testing wellhead in the centralizing sleeve by using a hoisting lockset, installing a lower centralizing jackscrew and an upper centralizing jackscrew to centralize the testing wellhead, and sequentially stacking and connecting a wellhead connector and a lifting pup joint on the testing wellhead;
Step 3, assembling operation platform
The method comprises the steps of overturning an operation platform, installing an upper support body on the lower surface of the operation platform, installing a lower support body outside a fixed base, using a hoisting lock, installing an intermediate body into the lower support body, overturning the operation platform with the upper support body, integrally hoisting the operation platform, moving the operation platform to the upper part of the intermediate body, adjusting the angle and the position of the operation platform to align the operation platform with the intermediate body, and lowering the operation platform to enable the intermediate body to enter the upper support body of the operation platform and be fixed, and installing components such as a safety barrier, a fixed pile, a fixed lifting lug and the like for the operation platform;
Step 4, installing service tools
Lifting a service tool, moving the service tool to the position above a test wellhead, lowering the service tool, enabling the service tool to pass through a lifting nipple and a wellhead connector, placing the service tool into the test wellhead, connecting a blind flange with the lifting nipple, enabling a tool driving shaft to pass through the blind flange, connecting the service tool with a tool driving shaft through threads, lifting a top hydraulic cylinder, moving the service tool to the position above the blind flange, enabling a mandrel of the top hydraulic cylinder to be connected with the tool driving shaft, adjusting the extending distance of the mandrel of the hydraulic cylinder, enabling the top hydraulic cylinder to be in contact with the blind flange, and connecting the top hydraulic cylinder with the blind flange through bolts;
Step 5, testing the underwater wellhead
Four tests were performed according to the test requirements: and (3) performing underwater wellhead stacking test, service tool installation recovery test, pressure test and inclination test.
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