CN201620887U - Machine-acquiring testing pipe-string for floating drilling rig - Google Patents
Machine-acquiring testing pipe-string for floating drilling rig Download PDFInfo
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- CN201620887U CN201620887U CN2009202782794U CN200920278279U CN201620887U CN 201620887 U CN201620887 U CN 201620887U CN 2009202782794 U CN2009202782794 U CN 2009202782794U CN 200920278279 U CN200920278279 U CN 200920278279U CN 201620887 U CN201620887 U CN 201620887U
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Abstract
The utility model relates to a machine-acquiring testing pipe-string for a floating drilling rig, which includes a flowing head, a cable bridge, a hanger, a single circulation valve, a rupture disk-type circulation valve, a packer and an electric submersible pump component, wherein the length of the hanger can be adjusted; the upper part of the hanger is connected with the cable bridge through an oil pipe; and the hanger is spindle-shaped and provided with an oil gas channel for oil gas circulation and a cable channel for cable penetration. The machine-acquiring testing pipe-string for floating drilling rig overcomes the defects of the prior art, realizes the machine-acquiring tests on the floating drilling rig, better evaluates and develops seabed oilfield, and possesses great economic and social benefits.
Description
Technical Field
The utility model relates to a machine of oil gas exploitation operation adopts the test tube cluster, and more specifically says, relates to a machine that floating drilling equipment used adopts the test tube cluster.
Background
At present, in the world, the drilling devices of offshore exploration wells and evaluation wells with the offshore water depth of 100-500 meters are mainly supported by floating drilling devices such as semi-submersible drilling platforms or semi-submersible drilling ships. Because of the influence of factors such as the pressure coefficient of the bottom layer, the oil quality of crude oil, the bottom layer pore permeability and the like, the reservoir cannot be evaluated due to the fact that natural energy cannot be used for conducting self-injection production solving in many structures, and the discovered reservoir can be evaluated only by adopting mechanical mining tests. However, since the well-established techniques and applications of the machine production test on the floating drilling device are not available, the machine production test has not been successfully applied on the floating drilling device due to the factors such as the heave and displacement of the floating drilling device and the underwater blowout preventer stack.
In the attempt of carrying out mechanical production test operation on a floating drilling device at home and abroad, due to the complex accidents of cable breakage and drill clamping, cable clamp breakage, electronic pressure gauge well dropping, having to restart a pipe column after the setting failure and the like caused by the problems of heave, cable crossing, packer setting and the like of the floating drilling device, major repair, salvage and even well abandonment are caused, and the economic loss of tens of millions and huge amount is caused.
The main reason for the failure of the mechanical production test on the floating drilling device is that the existing mechanical production test has the following defects:
1. due to the fact that the platform is greatly lifted and moved, the test pipe column above the mud surface and within the marine riser and the marine riser are subjected to interactive collision and vibration, and accidents such as cable breakage and drill clamping, cable clip breakage and the like occur.
2. The mechanical recovery pump vibrates in the pump opening process to cause complex accidents such as falling of an electronic pressure gauge, cable breaking and clamping of a cable clamp, large repair operations such as milling and salvaging are caused, and even a well is scrapped, so that huge economic loss is caused.
3. The relative motion between the floating drilling device and the test pipe column causes pipe column compensation, difficult connection and high-altitude installation operation risks, and causes drill clamping due to falling objects, cable damage and personal injury.
4. Power cables that provide power to the mechanical recovery pumps leak and lose seal when they pass through the blowout preventers and through the hangers, resulting in operational failure.
5. When the blowout preventer is closed to carry out an underground test tool for annular operation, the cable is damaged and broken by extrusion.
6. The conventional steel wire operation lower plug and pressing setting mode is adopted. The success rate is low and the time consumption is long. And a safety valve and a control pipe cable under the well are arranged, so that the process is complex, the consumed time is long, and the operation risk is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a machine that floating drilling unit used adopts test tube cluster.
The utility model provides a technical scheme that its technical problem adopted is: constructing a mechanical production test pipe string used by a floating drilling device, wherein the mechanical production test pipe string comprises a flow head, a cable bridge, a hanger, a single circulation valve, a rupture disc type circulation valve, a packer and an electric submersible pump assembly which are sequentially connected together from top to bottom; wherein,
the hanger is an adjustable-length hanger, the upper portion of the hanger is connected with the cable bridge through an oil pipe, the hanger is in a spindle shape, and the hanger is provided with an oil-gas channel for oil-gas circulation and a cable channel for cable passing through.
In the machine production test string used in the floating drilling device of the present invention, the cable bridge is a detachable and tie-back cable bridge, the cable bridge is in a spindle shape, and the cable bridge has an oil gas passage for oil gas circulation and a cable passage for cable to pass through.
In the mechanical recovery test string used in the floating drilling device of the present invention, the packer is a repeatable setting packer.
In the mechanical recovery test string used in the floating drilling device, the packer is an insertion tube type hydraulic packer.
In the mechanical recovery test string used in the floating drilling device of the present invention, the electrical submersible pump assembly includes an electrical pump, a motor, and a series protector.
The floating drilling rig machine that uses adopt in the test tube cluster, machine adopts the test tube cluster and still includes pump operating mode monitoring assembly, pump industry control monitoring assembly connects the below at the motor.
The machine that floating drilling unit used adopts in the test tube cluster, the machine adopts the test tube cluster and still includes the pressure gauge support cylinder, the pressure gauge support cylinder cover is established the machine adopts the lower extreme of test tube cluster.
Implement the utility model discloses a machine that floating drilling unit used adopts test tube cluster has following beneficial effect: the utility model discloses a machine that floating drilling equipment used adopts the test tube cluster and has overcome prior art's shortcoming, can realize the machine on floating drilling equipment and adopt the test, utilizes this machine to adopt the test tube cluster, can be better appraise and develop offshore oil field, have huge economic benefits and social.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic view of a machine production test string used with the floating drilling unit of the present invention;
fig. 2 is a schematic structural diagram of a cable bridge and a hanger in a mechanical production test string used in the floating drilling device of the present invention.
In the figure: 1. flow head, 2, drill pipe, 3, change-over joint, 4, tubing, 5, change-over joint, 6, change-over joint, 7, tubing sub, 8, cable bridge, 9, tubing sub, 10, hanger, 11, change-over joint, 12, tubing, 13, round cable, 14, change-over joint, 15, tubing sub, 16, single circulation valve, 17, tubing sub, 18, change-over joint, 19, burst disk circulation valve, 20, change-over joint, 21, tubing sub, 22, packer, 23, tubing sub, 24, tubing sub, 25, flat cable, 26, one-way shear valve, 27, change-over joint, 28, pump outlet, 29, electric pump, 30, suction inlet, 31, series protector, 32, motor, 33, pump condition monitoring assembly, 36, change-over joint, 37, pressure gauge support, 38, round blind plug, 39, cable seal, 40, tubing, 41, tubing, Universal blowout preventer, 42, shear ram, 43, cable protector.
Detailed Description
As shown in fig. 1, for an embodiment of the mechanical mining test tube string used in the floating drilling device of the present invention, the mechanical mining test tube string comprises, sequentially connected from top to bottom: the hydraulic pump comprises a flow head 1, a drill pipe 2, a buckle changing joint 3, an oil pipe 4, a buckle changing joint 5, a buckle changing joint 6, an oil pipe short section 7, a cable bridge 8, an oil pipe short section 9, a hanger 10, a buckle changing joint 11, an oil pipe 12, a buckle changing joint 14, an oil pipe short section 15, a single circulating valve 16, an oil pipe short section 17, a buckle changing joint 18, a rupture disc type circulating valve 19, a buckle changing joint 20, an oil pipe short section 21, a packer 22, an oil pipe short section 23, an oil pipe short section 24, a one-way shearing valve 26, a buckle changing joint 27, an electric pump 29, a series protector 31, a motor 32, a pump working condition monitoring assembly 33, a buckle changing joint 36 and a round head blind plug 38, wherein a round cable 13 penetrates through the cable bridge 8 and the packer 22.
The power of the electric pump 29 is provided to the downhole unit by a surface power supply through the round cable 13, so as to avoid damaging the round cable 13 when the shear ram 42 is closed or the universal blowout preventer 41 is closed, referring to fig. 2, a cable bridge 8 for protecting and sealing is designed in the mechanical mining test tube string, so that the cable 13 can be protected when the underwater universal blowout preventer works. In order to enable the cable bridge 8 to pass through the universal blowout preventer 41 smoothly and prevent the occurrence of the hang-up, the cable bridge 8 is designed in a spindle shape, the cable bridge 8 is provided with an oil gas passage for oil gas to pass through and a cable passage for round cable 13 to pass through, the oil pipe 7 is penetrated by the oil gas passage, the round cable 13 is penetrated through a cable seal 39 and a small-sized oil pipe 40 connected with the cable seal 39, and the small-sized oil pipe 40 is penetrated through the cable passage. When the universal blowout preventer 41 is closed, the core of the universal blowout preventer 41 seizes the main cable bridge 8, creating a seal for annular pressure operations through the kill/choke manifold. The utility model discloses in, cable bridge 8 is for can taking off and tieback formula cable bridge for keep away emergent operations such as typhoon.
In order to ensure that the part below the hanger 10 of the mechanical production test pipe string is not influenced by the lifting and displacement of the floating drilling platform, the flow head 1 above the hanger 10 is connected with a floating system of the floating drilling platform, and the heave motion of the floating drilling device is compensated through a drill string compensator. The hanger 10 is seated on an underwater wellhead, the upper part of which is connected with the cable bridge 8 through an oil pipe, and the lower part of which is connected with the oil pipe. The hanger 10 also has an oil and gas passage for oil and gas to pass through and a cable passage for a cable to pass through. In order to prevent the hanger 10 from being hung up when passing through the universal blowout preventer 41, the hanger 10 is also designed in a spindle shape. The utility model provides a hanger 10 is the hanger of adjustable length, through locking piece locking after rotatory hanger adjustment length from top to bottom.
Since the cable runs down the packer 22 and through the packer 22, it is desirable that the packer 22 be set in a manner that is neither rotatable nor capable of length changes before and after setting, which would otherwise occur by twisting off the cable. In the mechanical production test string of the utility model, a packer 22 which can be repeatedly set and a one-way shear valve 26 are combined, after the setting is pressed, the packer can still be set after being lifted up and unsealed and then the hanger 10 is set; after the setting and the seal checking are finished, the one-way shear valve 26 is broken by positive overpressure to realize complete menstruation. The original old combination that the setting can be finished only by pressing the lower plug in the operation of adding steel wires into the lower working barrel is replaced. The combination has both an efficient repeated setting function and a function of maintaining cable crossing, and can provide a forward extrusion channel. The packer 22 may be a stinger hydraulic packer.
The utility model discloses a machine is adopted test tube string to adopt annular space single circulation valve 16 and the disc circulation valve 19 that breaks to make up into the dual pressure circulation valve, replace the current mode of using the downhole safety valve, current mode needs the control line ligature of downhole safety valve in the outside of tube string, the process is loaded down with trivial details, installation and operating time are long, current mode relatively, the mode of using annular space single circulation valve 16 and the disc circulation valve 19 that breaks to make up into the dual pressure circulation valve has both simplified operation, possess the safety control function simultaneously again and satisfy construction process's requirement. The double-circulation function is achieved, and meanwhile, double insurance on safety is achieved.
Utilize the utility model discloses a machine to adopt test tube cluster, the successful machine of china's south China sea has adopted test operation on the floating drilling platform. Experience weather and sea state in the severe monsoon season of the south China and the sea of China, experienced the typhoon, experienced floating drilling rig and pitched 15 degrees, and the condition of rolling 10 degrees, the biggest heaving reaches 3 meters, has proven the utility model discloses a machine is adopted test tube and is strung and have fine suitability, is applicable to floating drilling ship or semi-submerged formula drilling platform.
The utility model discloses a machine that floating drilling equipment used adopts the test tube cluster and has overcome prior art's shortcoming, can realize the machine on floating drilling equipment and adopt the test, utilizes this machine to adopt the test tube cluster, can be better appraise and develop offshore oil field, have huge economic benefits and social.
While the embodiments of the present invention have been described with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (7)
1. A mechanical production test pipe string used for a floating drilling device is characterized by comprising a flow head (1), a cable bridge (8), a hanger (10), a single circulation valve (16), a rupture disc type circulation valve (19), a packer (22) and an electric submersible pump assembly which are sequentially connected together from top to bottom; wherein,
the hanger (10) is an adjustable-length hanger, the upper portion of the hanger (10) is connected with the cable bridge (8) through an oil pipe, the hanger (10) is in a spindle shape, and the hanger (10) is provided with an oil-gas channel for oil-gas circulation and a cable channel for a cable to pass through.
2. The string of mechanical production test pipes for use with a floating drilling installation according to claim 1, wherein the cable bridge (8) is a disconnectable and retrievable cable bridge, the cable bridge (8) being spindle-shaped, the cable bridge having a hydrocarbon passage for hydrocarbon circulation and a cable passage for cable crossing.
3. The machine production test string for use with a floating drilling unit of claim 2, wherein the packer (22) is a re-settable packer.
4. The machine production test string for use with a floating drilling unit of claim 3, wherein the packer (22) is a stinger hydraulic packer.
5. The machine-produced test tube string for use with a floating drilling unit of claim 1, wherein the electrical submersible pump assembly includes an electrical pump (29), an electrical motor (32), and a series protector (31).
6. The mechanical production test tube string for use with a floating drilling unit of claim 1, further comprising a pump condition monitoring assembly (33), the pump condition monitoring assembly (33) being connected below the motor (32).
7. The mechanical production test tube string for the floating drilling unit of claim 1, further comprising a pressure gauge support (37), wherein the pressure gauge support (37) is sleeved at the lowest end of the mechanical production test tube string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782794U CN201620887U (en) | 2009-12-30 | 2009-12-30 | Machine-acquiring testing pipe-string for floating drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782794U CN201620887U (en) | 2009-12-30 | 2009-12-30 | Machine-acquiring testing pipe-string for floating drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620887U true CN201620887U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782794U Expired - Lifetime CN201620887U (en) | 2009-12-30 | 2009-12-30 | Machine-acquiring testing pipe-string for floating drilling rig |
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| CN (1) | CN201620887U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116148A (en) * | 2009-12-30 | 2011-07-06 | 中国海洋石油总公司 | Machine exploitation test pipe string for floating drilling rig |
| CN103161438A (en) * | 2011-12-15 | 2013-06-19 | 中国海洋石油总公司 | Tubular column of perforation fracturing test system |
| CN108776081A (en) * | 2018-07-05 | 2018-11-09 | 中国石油大学(华东) | A kind of dissolved gas crude oil flow behavior experiment circuit device |
-
2009
- 2009-12-30 CN CN2009202782794U patent/CN201620887U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116148A (en) * | 2009-12-30 | 2011-07-06 | 中国海洋石油总公司 | Machine exploitation test pipe string for floating drilling rig |
| CN103161438A (en) * | 2011-12-15 | 2013-06-19 | 中国海洋石油总公司 | Tubular column of perforation fracturing test system |
| CN103161438B (en) * | 2011-12-15 | 2017-04-19 | 中国海洋石油总公司 | Tubular column of perforation fracturing test system |
| CN108776081A (en) * | 2018-07-05 | 2018-11-09 | 中国石油大学(华东) | A kind of dissolved gas crude oil flow behavior experiment circuit device |
| CN108776081B (en) * | 2018-07-05 | 2021-02-09 | 中国石油大学(华东) | An experimental loop device for the flow characteristics of dissolved gas crude oil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CNOOC Deepwater Development Limited Assignor: China National Offshore Oil Corporation|CNOOC (China) Co., Ltd. Shenzhen branch Contract record no.: 2013440020084 Denomination of utility model: Machine exploitation test pipe string for floating drilling rig Granted publication date: 20101103 License type: Exclusive License Record date: 20130318 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |