CN201620887U - Machine-acquiring testing pipe-string for floating drilling rig - Google Patents

Machine-acquiring testing pipe-string for floating drilling rig Download PDF

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Publication number
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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CN
China
Prior art keywords
drilling rig
test tube
cable
floating drilling
hanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009202782794U
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Chinese (zh)
Inventor
唐海雄
张俊斌
林海春
彭作如
王跃曾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CNOOC (CHINA) Co Ltd SHENZHEN BRANCH
China National Offshore Oil Corp CNOOC
China National Offshore Oil Corp Shenzhen Branch
Original Assignee
CNOOC (CHINA) Co Ltd SHENZHEN BRANCH
China National Offshore Oil Corp CNOOC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CNOOC (CHINA) Co Ltd SHENZHEN BRANCH, China National Offshore Oil Corp CNOOC filed Critical CNOOC (CHINA) Co Ltd SHENZHEN BRANCH
Priority to CN2009202782794U priority Critical patent/CN201620887U/en
Application granted granted Critical
Publication of CN201620887U publication Critical patent/CN201620887U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

The machine reconnaissance test tube string that a kind of floating drilling rig uses
Technical field
The utility model relates to the machine reconnaissance test tube string of oil-gas mining operation, more particularly, relates to the machine reconnaissance test tube string that a kind of floating drilling rig uses.
Background technology
At present, worldwide, deep water offshore between 100~500 meters marine prospect pit and the drilling rig of evaluation well mainly be that floating drilling rigs such as semisubmersible drilling platform or semi-submersible drilling ship hold brill.Because the influence of factor such as is oozed in the pressure coefficient, crude oil quality character, the bottom hole that are subjected to bottom, many structures ask product to make reservoir can't obtain estimating because of utilizing natural energy to carry out blowing, must the examination of employing machine reconnaissance could estimate the reservoir of finding.But, because carrying out the examination of machine reconnaissance on floating drilling rig does not also have ripe supporting technology and uses experience, be subjected to the heave, displacement of floating drilling rig and the influence of factor such as blowout preventer set under water, the machine reconnaissance examination application of on floating drilling rig, always not succeeding.
Carrying out the machine reconnaissance both at home and abroad on floating drilling rig studies in the trial already, since problems such as the heave problem of floating drilling rig, cable crossing problem, packer setting cause outage cable bit freezing, power down cable clamp bit freezing, electronic pressure gauge fall well, set complex accident such as having to trip out again tubing string after the inefficacy, cause overhaul, salvaging even well to be scrapped, cause to reach tens million of huge economic losses.
The main cause of machine reconnaissance examination failure is that there is following shortcoming in existing machine reconnaissance examination on the floating drilling rig:
1, because the accidents such as cable bit freezing, power down cable clamp bit freezing of cutting off the power supply appears in significantly platform heave and move and to cause that the mud face is above, marine riser mutual collision and vibration occur with interior test string and marine riser.
2, adopt pump and vibration in the turn on pump process, occurs and cause that complex accident such as bit freezing appear in fall well, outage cable, power down cable clamp of electronic pressure gauge owing to machine, cause heavy repair tasks such as cover mills, salvaging, even cause well to be scrapped, cause huge economic loss.
3, floating drilling rig causes the tubing string compensation, is connected difficulty and high-altitude installation exercise risk with relative motion between test string, causes junk bit freezing, cable bad, causes personal injury.
4, adopt power cable that pump provides electric energy electric leakage occurring and lose envelope for machine, cause the operation failure by preventer being connected and sealing when passing through hanger.
5, when the pass preventer carries out annular space operation downhole testing instrument, squeeze wound and squeeze off cable.
6, adopt conventional steel wire operation lower end cap, suppress the mode of setting.Success rate is low, length consuming time.Be lowered to storm valve and control umbilical, complex procedures, length consuming time, operating risk is big.
The utility model content
The purpose of this utility model is to provide a kind of machine reconnaissance test tube string of floating drilling rig use.
The technical scheme that its technical problem that solves the utility model adopts is: construct the machine reconnaissance test tube string that a kind of floating drilling rig uses, comprise the mobile head, cable bridge, hanger, single cycle valve, the disc type of breaking circulating valve, packer and the submersible pump assembly that are connected in turn from top to bottom; Wherein,
Described hanger is the adjustable-length hanger, and the top of described hanger is connected with described cable bridge by oil pipe, and described hanger is a spindle, and described hanger has the gas channel that is used for the oil gas circulation and is used for the cable passage that cable passes through.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described cable bridge is releasable and tieback formula cable bridge, described cable bridge is a spindle, and described cable bridge has the gas channel that is used for the oil gas circulation and is used for the cable passage that cable passes through.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described packer is for can repeat set packer.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described packer is the cannula type hydraulic packer.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described submersible pump assembly comprises electric pump, motor and series connection protector.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described machine reconnaissance test tube string also comprises pump monitoring of working condition assembly, and described pump industry control monitoring assembly is connected the below of motor.
In the machine reconnaissance test tube string that floating drilling rig described in the utility model uses, described machine reconnaissance test tube string also comprises manometer, and described manometer is set in described machine reconnaissance test tube string bottom.
Implement the machine reconnaissance test tube string that floating drilling rig of the present utility model uses, have following beneficial effect: the machine reconnaissance test tube string that floating drilling rig of the present utility model uses has overcome the shortcoming of prior art, can on floating drilling rig, realize the examination of machine reconnaissance, utilize this machine reconnaissance test tube string, can better estimate and develop, have huge economic benefit and social benefit offshore oilfield.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of the machine reconnaissance test tube string of floating drilling rig use of the present utility model;
Fig. 2 is the structural representation of cable bridge and hanger in the machine reconnaissance test tube string that uses of floating drilling rig of the present utility model.
Among the figure: 1; mobile head, 2; drilling rod, 3; become the snapping head; 4; oil pipe, 5; become the snapping head, 6; become the snapping head; 7; tubing nipple, 8; cable bridge, 9; tubing nipple; 10; hanger, 11; become the snapping head, 12; oil pipe; 13; the circle cable, 14; become the snapping head, 15; tubing nipple; 16; the single cycle valve, 17; tubing nipple, 18; become the snapping head; 19; the disc type of breaking circulating valve, 20; become the snapping head, 21; tubing nipple; 22; packer, 23; tubing nipple, 24; tubing nipple; 25; flat cable, 26; unidirectional shear valve, 27; become the snapping head; 28; pump discharge, 29; electric pump, 30; intake; 31; the series connection protector, 32; motor, 33; pump monitoring of working condition assembly; 36; become the snapping head, 37; manometer, 38; the round end blind plugging; 39; cable seal, 40; oil pipe, 41; omnipotent preventer; 42; shear ram, 43; the cable protection device.
The specific embodiment
As shown in Figure 1; an embodiment of the machine reconnaissance test tube string that uses for floating drilling rig of the present utility model; this machine reconnaissance test tube string comprises and being connected in turn from top to bottom: flow 1; drilling rod 2; become snapping head 3; oil pipe 4; become snapping head 5; become snapping head 6; tubing nipple 7; cable bridge 8; tubing nipple 9; hanger 10; become snapping head 11; oil pipe 12; become snapping head 14; tubing nipple 15; single cycle valve 16; tubing nipple 17; become snapping head 18; the disc type of breaking circulating valve 19; become snapping head 20; tubing nipple 21; packer 22; tubing nipple 23; tubing nipple 24; unidirectional shear valve 26; become snapping head 27; electric pump 29; series connection protector 31; motor 32; pump monitoring of working condition assembly 33; become snapping head 36; round end blind plugging 38, circle cable 13 passes cable bridge 8; change behind the packer 22 by flat cable 25 and be connected with motor 32.
The power of electric pump 29 is provided to the down-hole unit by circle cable 13 by the ground electrical source of power; for fear of when closing shear ram 42 or close omnipotent preventer 41, damaging circle cable 13; referring to Fig. 2; one of design plays the cable bridge 8 of protection and sealing function in machine reconnaissance test tube string, and cable can be protected when guaranteeing that the omnipotent under water blowout preventer set of circle cable 13 is worked.Hang in order to make cable bridge 8 prevent resistance by omnipotent preventer 41 smoothly, cable bridge 8 is designed to spindle, cable bridge 8 has and is used for the gas channel that oil gas passes through and is used for the cable passage that circle cable 13 passes through, oil pipe 7 is passed by gas channel, the small size oil pipe 40 that circle cable 13 passes cable seal 39 and links to each other with cable seal 39, small size oil pipe 40 passes described cable passage.When closing omnipotent preventer 41, the fuse card leader cable bridge 8 of omnipotent preventer 41 is set up sealing so that carry out the annular pressure operation by kill-job/choke manifold.In the utility model, cable bridge 8 is releasable and tieback formula cable bridge, is used to keep away emergent operations such as typhoon.
Be not subjected to the influence of floating drilling platform lifting and displacement with the lower part for the hanger 10 that guarantees machine reconnaissance test tube string, flowing of hanger 10 tops 1 is connected with the traveling system of floating drilling platform, compensates the heave movement of floating drilling rig by drill string compensator.Hanger 10 is seated at underwater well head, and its top is connected with cable bridge 8 by oil pipe, and the bottom is connected with oil pipe.Have equally on the hanger 10 and be used for the gas channel that oil gas passes through and be used for the cable passage that cable passes through.Resistance occurs when preventing hanger 10 by omnipotent preventer 41 and hang, hanger 10 also is designed to spindle.Hanger 10 in the utility model is the hanger of adjustable-length, passes through the latch locking by rotating after hanger is adjusted length up and down.
Because cable is descending and pass through packer 22 along packer 22, therefore requires the mode that sets of packer 22 change in length can not occur for rotating before and after setting, otherwise, cable will appear twisting off.In machine reconnaissance test tube string of the present utility model, used packer that can repeat to set 22 and unidirectional shear valve 26 combinations, suppress set after, on carry deblocking and take hanger 10 again after, suppress still and can set; After setting, test envelope and finishing, the forward superpressure is broken unidirectional shear valve 26 and is realized stimulating the menstrual flow fully again.Having replaced original down seating nipple to add the steel wire operation lower end cap suppresses and just can finish the old combination that sets.This combination had both had and efficiently repeats to set function and keep cable to pass through function, and the squeeze note passage of forward can be provided simultaneously.This packer 22 can be the cannula type hydraulic packer.
Machine reconnaissance test tube string of the present utility model adopts the annular space single cycle valve 16 and the disc type circulating valve 19 that breaks to be combined into two pressures cycle valves, the mode that replaces existing use storm valve, existing mode need be managed the outside of going here and there with the control pipeline colligation of storm valve, operation is loaded down with trivial details, installation and operating time are long, relative existing mode, the mode of using the annular space single cycle valve 16 and the disc type circulating valve 19 that breaks to be combined into two pressures cycle valves had both been simplified operational sequence, possessed security control function and the requirement of satisfying construction technology simultaneously again.Also has the dual fail-safe on the safety when reaching two circulatory function.
Utilize machine reconnaissance test tube string of the present utility model, the machine reconnaissance that carried out on the floating drilling platform of the southern China sea of China of success studies industry.Weather and the sea situation of the abominable monsoon season of China's south China sea have been experienced, experienced typhoon, floating drilling rig pitching 15 degree have been experienced, rolling 10 degree, maximum heave reaches 3 meters situation, proved that machine reconnaissance test tube string of the present utility model has fine applicability, is applicable to drillship or semisubmersible drilling platform.
The machine reconnaissance test tube string that floating drilling rig of the present utility model uses has overcome the shortcoming of prior art, can on floating drilling rig, realize the examination of machine reconnaissance, utilize this machine reconnaissance test tube string, can better estimate and develop, have huge economic benefit and social benefit offshore oilfield.
In conjunction with the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.

Claims (7)

1. the machine reconnaissance test tube string that uses of a floating drilling rig, it is characterized in that, comprise mobile head (1), the cable bridge (8), hanger (10), single cycle valve (16), the disc type of breaking circulating valve (19), packer (22) and the submersible pump assembly that are connected in turn from top to bottom; Wherein,
Described hanger (10) is the adjustable-length hanger, the top of described hanger (10) is connected with described cable bridge (8) by oil pipe, described hanger (10) is a spindle, and described hanger (10) has the gas channel that is used for the oil gas circulation and is used for the cable passage that cable passes through.
2. the machine reconnaissance test tube string that floating drilling rig according to claim 1 uses, it is characterized in that, described cable bridge (8) is releasable and tieback formula cable bridge, described cable bridge (8) is a spindle, and described cable bridge has the gas channel that is used for the oil gas circulation and is used for the cable passage that cable passes through.
3. the machine reconnaissance test tube string that floating drilling rig according to claim 2 uses is characterized in that described packer (22) is for can repeat set packer.
4. the machine reconnaissance test tube string that floating drilling rig according to claim 3 uses is characterized in that described packer (22) is the cannula type hydraulic packer.
5. the machine reconnaissance test tube string that floating drilling rig according to claim 1 uses is characterized in that, described submersible pump assembly comprises electric pump (29), motor (32) and series connection protector (31).
6. the machine reconnaissance test tube string that floating drilling rig according to claim 1 uses is characterized in that described machine reconnaissance test tube string also comprises pump monitoring of working condition assembly (33), and described pump industry control monitoring assembly (33) is connected the below of motor (32).
7. the machine reconnaissance test tube string that floating drilling rig according to claim 1 uses is characterized in that described machine reconnaissance test tube string also comprises manometer (37), and described manometer (37) is set in described machine reconnaissance test tube string bottom.
CN2009202782794U 2009-12-30 2009-12-30 Machine-acquiring testing pipe-string for floating drilling rig Expired - Lifetime CN201620887U (en)

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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Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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) Dissolved gas crude oil flow characteristic experiment loop device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
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

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20101103