CN103089185A - Operating device and method for constant-borehole-diameter expandable casing - Google Patents

Operating device and method for constant-borehole-diameter expandable casing Download PDF

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Publication number
CN103089185A
CN103089185A CN2011103367856A CN201110336785A CN103089185A CN 103089185 A CN103089185 A CN 103089185A CN 2011103367856 A CN2011103367856 A CN 2011103367856A CN 201110336785 A CN201110336785 A CN 201110336785A CN 103089185 A CN103089185 A CN 103089185A
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CN
China
Prior art keywords
expansion
sleeve
expansion sleeve
cone
tie back
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.)
Pending
Application number
CN2011103367856A
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Chinese (zh)
Inventor
李作会
唐明
吴柳根
马建忠
蔡鹏�
彭志刚
唐成磊
滕照正
宁学涛
朱海波
沈学祥
朱万胜
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.)
China Petroleum and Chemical Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau
Original Assignee
China Petroleum and Chemical Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau
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.)
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Publication date
Application filed by China Petroleum and Chemical Corp, Drilling Technology Research Institute of Sinopec Shengli Petroleum Administration Bureau filed Critical China Petroleum and Chemical Corp
Priority to CN2011103367856A priority Critical patent/CN103089185A/en
Publication of CN103089185A publication Critical patent/CN103089185A/en
Pending legal-status Critical Current

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Abstract

The invention relates to operating device and method for a constant-borehole-diameter expandable casing. The operating device mainly comprises an expandable tieback tube, a degradable ring, a constant-borehole-diameter expandable casing and a rubber seal. The expandable tieback tube and the degradable ring are descended into a well with an intermediate casing. After drilling continues, the constant-borehole-diameter expandable casing is descended. After the degradable ring degrades completely, expansion of the constant-borehole-diameter expandable casing and the expandable tieback tube is achieved with an expanding tool. After expansion, the constant-borehole-diameter expandable casing is tied back into the expandable tieback tube at zero loss through the rubber seal. After a guide shoe on the lower portion of the constant-borehole-diameter expandable casing is drilled through, next drilling operation is available. Sufficient expansion space is provided for the stack-segment constant-borehole-diameter expandable casing, expansion of the expandable tieback tube and the constant-borehole-diameter expandable casing is achieved in the same time, expanding force is decreased, and the operating device and method have the advantages of high tightness, large suspending force, effective tieback and the like.

Description

Apparatus for work and operational method Deng the hole diameter expansion sleeve
Technical field
The present invention relates to oil drilling completion system field, specifically a kind of apparatus for work and operational method that waits the hole diameter expansion sleeve, provide a kind of technical condition for realizing that the hole diameters such as expansion sleeve are used.
Background technology
Arrival along with mid-late oilfield development, deep-well, Holes of Complicated Wells will get more and more, the conventional well body structure is difficult to solve the problem (as leakage, high pressure zone etc.) of the bad ground that runs in deep-well and Holes of Complicated Wells drilling well sometimes, therefore cause that the size that drives a well is increasing, drilling cost is more and more higher, the completion well reduces on the contrary, also is unfavorable for the later stage operation of oil well.
Expansion sleeve is as a kind of follow-up solution of drilling problem, as casing patching, sidetracked hole completion etc., but the development along with this technology, now be applied in casing programme design and drilling plan, extensive use in high angle hole, horizontal well, deep-well and thermal production well increases completion size and Optimize Casing Program greatly, obtains extensively approval.It is identical with the internal diameter of basic sleeve pipe that common expansion sleeve operation is that the external diameter with expansion sleeve expand into, but the protective casing of overlay segment is without any expansion.Adopt expansion sleeve to realize that nested type expands to change casing programme, can improve the hole diameter utilization rate, significantly reduce the tapering of conventional well, but this expansion fashion will cause dwindling of borehole diameter.Along with the extensive application of expansion sleeve, the expansion sleeve technology is inevitable to be changed to scale, not only will reduce the impact of well tapering, and will finally eliminate the well tapering, has realized the breakthrough of casing programme design---wait the hole diameter well.
Deng the developing direction of hole diameter expansion sleeve technology as international expansion sleeve technology and casing programme, can realize creeping into without internal diameter loss, can solve the drilling well difficult problem of the bad grounds such as leakage stratum, high pressure formation, Thin Film Flows lost territory layer.Obtain the well with previous same size, continue to creep into unidimensional drill bit, just must realize that sleeve pipe overlay segment internal diameter is identical with the upper strata protective casing, therefore wait the tieback technology of hole diameter expansion sleeve just to seem most important.
Summary of the invention
The objective of the invention is the problem for the prior art existence, a kind of apparatus for work and operational method that waits the hole diameter expansion sleeve proposed, after realization waits hole diameter expansion sleeve tieback, internal diameter is consistent with the protective casing internal diameter, realizes that for the later stage hole diameter expansion such as expansion sleeve provides technical guarantee.
Technical scheme of the present invention is: the apparatus for work that waits the hole diameter expansion sleeve is comprised of expansion sleeve tieback mechanism, guide shoe, expansion mechanism of sleeve pipe and sleeve pipe quadratic extension mechanism; Wherein, the expansion sleeve tieback assembly is at the isometrical expansion tie back stem of protective casing bottom connection and protective casing, is provided with the degradable ring outside the expansion tie back stem; Expansion mechanism of sleeve pipe is that the outside is provided with caulking gum on expansion sleeve, the expansion sleeve bottom is provided with the horn mouth of hole enlargement, bell-mouthed external diameter is slightly less than expansion tie back stem internal diameter, axially be provided with inner tube along expansion sleeve, the inner tube bottom connects the one-level expansion cone, bottom heavy caliber part and the bell-mouthed heavy caliber of one-level expansion cone partly form the expansion of sliding and coordinate, the small-bore part in the top of one-level expansion cone is slidably matched with the front expansion sleeve that expands, and in the middle of the one-level expansion cone, taper excessively partly forms cone match with the horn mouth conical transition zone; Sleeve pipe quadratic extension mechanism arranges the compound expansion that is connected with the inner tube bottom above expansion sleeve after hole enlargement and expansion tie back stem joint portion and bores completing, the heavy caliber part of compound expansion cone forms with the protective casing inwall and is slidably matched, and the expansion sleeve inwall after the small-bore part of compound expansion cone and a hole enlargement forms and is slidably matched; The wall thickness of degradable ring is greater than the caulking gum after pushing and the thickness sum of expansion sleeve.
Also comprise being arranged on the inner tube packer in protective casing above the compound expansion cone in sleeve pipe quadratic extension mechanism, also be provided with caulking gum in the bottom of expansion sleeve.
The present invention provides simultaneously and utilizes the operational method that waits the hole diameter expansion sleeve of said apparatus to be:
(1) protective casing is cemented the well after being lowered to well together with expansion tie back stem and degradable ring;
(2) drill guide shoe and complete drilling well and the reaming hole operation, be lowered to guide shoe, expansion sleeve and expansion mechanism of sleeve pipe;
(3) promote inner tube, pull the one-level expansion cone to go upward to the expansion sleeve top, after expansion sleeve once expanded, caulking gum tightly was compressed between expansion tie back stem and expansion sleeve, completed suspension and the sealing of expansion sleeve;
(4) expansion mechanism of sleeve pipe is proposed, be lowered to sleeve pipe reexpansion mechanism, in the time of above expansion sleeve after compound expansion cone arrives a hole enlargement and expansion tie back stem joint portion, the afterburning inner tube that promotes, driving the compound expansion cone is isometrical with protective casing with expansion sleeve with expansion tie back stem joint portion globally expanding, completes the operation such as expansion such as hole diameter such as grade of sleeve pipe.
The invention has the advantages that:
(1) the present invention adopts the expansion tie back stem, and the hole diameter expansion sleeve such as tieback after expanding is for the hole diameters such as expansion sleeve generation expand and then realize creeping into without the internal diameter loss a kind of feasibility and precondition are provided;
(2) the present invention adopts the degradable ring, prevent the cement paste tie back stem that admittedly firmly expands when intermediate casing cementing, after degraded again for the expansion tie back stem with wait the expansion of hole diameter expansion sleeve that the expansion space is provided, thereby greatly reduce overlay segment expansion tie back stem and wait the expansion force of hole diameter expansion sleeve;
(3) the present invention adopts high-performance sealed rubber, be close to after waiting hole diameter expansion sleeve to expand and the expansion tie back stem and etc. between the hole diameter expansion sleeve, have the advantages that sealing is tight, suspension force is large, the tieback effect of hole diameter expansion sleeve such as make better.
Description of drawings
The structural representation of Fig. 1 expansion sleeve tieback mechanism
Original state schematic diagram under Fig. 2 expansion sleeve and expansion mechanism lower going-into-well
Schematic diagram after Fig. 3 expansion sleeve completed well expands next time
Original state schematic diagram under Fig. 4 expansion sleeve and reexpansion mechanism lower going-into-well
The schematic diagram of a kind of embodiment under Fig. 5 expansion sleeve completed well after reexpansion
The schematic diagram of the second embodiment under Fig. 6 expansion sleeve completed well after reexpansion
Initial stage tube swelling instrument reducing schematic diagram after under Fig. 7 expansion sleeve and expansion mechanism lower going-into-well
Later stage tube swelling instrument reducing schematic diagram after under Fig. 8 expansion sleeve and expansion mechanism lower going-into-well
In figure: 1. expansion tie back stem, 2. degradable ring, 3. expansion sleeve, 4. caulking gum, 5. protective casing, 6. guide shoe, 7. well, 8. cement sheath, 9. horn mouth, 10. one-level expansion cone, 11. inner tubes, 12. inner tube packers, 102. compound expansions cones.
The specific embodiment
Now in conjunction with Figure of description 1 to Fig. 8, the invention will be further described.
Formed by expansion sleeve tieback mechanism, guide shoe 6, expansion mechanism of sleeve pipe and sleeve pipe quadratic extension mechanism Deng the apparatus for work of hole diameter expansion sleeve.with reference to Fig. 1, the expansion sleeve tieback assembly is at the isometrical expansion tie back stem 1 of protective casing 5 bottoms connections and protective casing 5, be provided with degradable ring 2 outside expansion tie back stem 1, the material of degradable ring 2 for degrading in cement paste and drilling fluid, its thickness is greater than the thickness sum of caulking gum 4 and expansion sleeve 3, degradable ring 2 can prevent the cement paste tie back stem 1 that admittedly firmly expands when protective casing 5 well cementation, provide the expansion space for expansion tie back stem 1 and the expansion that waits hole diameter expansion sleeve 3 again after degraded, thereby greatly reduce overlay segment expansion tie back stem 1 and the expansion force that waits hole diameter expansion sleeve 3.
with reference to accompanying drawing 2, expansion mechanism of sleeve pipe is that outside sulfuration has caulking gum 4 on expansion sleeve 3, expansion sleeve 3 bottoms are provided with the horn mouth 9 of hole enlargement, the external diameter of horn mouth 9 is slightly less than expansion tie back stem 1 internal diameter, axially be provided with inner tube 11 along expansion sleeve 3, inner tube 11 bottoms connect one-level expansion cone 10, bottom heavy caliber part and the heavy caliber of horn mouth 9 of one-level expansion cone 10 partly form the expansion of sliding and coordinate, the small-bore part in the top of one-level expansion cone 10 is slidably matched with the front expansion sleeve 3 that expands, in the middle of one-level expansion cone 10, the excessive part of taper and horn mouth 9 conical transition zones form cone match.With reference to accompanying drawing 3, after completing once expansion, caulking gum 4 tightly is being compressed between expansion tie back stem 1 and expansion sleeve 3 after expansion sleeve 3 tiebacks, and sealing is tight, suspension force is large, makes expansion sleeve 3 have splendid tieback effect.
With reference to attached 4, sleeve pipe quadratic extension mechanism arranges the compound expansion that is connected with inner tube 11 bottoms above expansion sleeve 3 after hole enlargement and expansion tie back stem 1 joint portion and bores 102 completing, inner tube packer 12 above compound expansion cone 102 in protective casing 5, the heavy caliber part of compound expansion cone 102 forms with protective casing 5 inwalls and is slidably matched, and expansion sleeve 3 inwalls after the small-bore part of compound expansion cone 102 and a hole enlargement form and are slidably matched.With reference to accompanying drawing 5 and 6, consistent with protective casing 5 through expansion sleeve 3 internal diameters after reexpansion, the Jingxing expansion sleeves 3 such as formation are for next step drillng operation provides condition.
With reference to accompanying drawing 7 and 8, in expanding mechanism of sleeve pipe, expansion sleeve 3 horn mouth 9 can be reducing, this reducing is realized by down-hole pressure reducing or the prefabricated reducing of expansion sleeve.
The operational method that waits hole diameter expansion sleeve apparatus for work of the present invention, expansion and the tieback of the expansion sleeve such as hole diameter such as grade that adopts that two kinds of diverse ways are implemented are divided into twice expansion and implement.
Expansion tie back stem 1 and degradable ring 2 are lowered to the rear well cementation of well 7 together with protective casing 5, and at this moment, cement paste can't enter the degradable ring and take up space, and at protective casing 5 and degradable ring 2 and 7 formation cement sheaths 8 of well, see Fig. 1.
Drill guide shoe 6 and complete drilling well and the reaming hole operation, be lowered to expansion sleeve 3 in new well 7, expand the degradable ring 2 of tie back stem 1 body by liquid degradation in well this moment, for expansion tie back stem 1 and expansion sleeve such as hole diameter such as grade 3 provide enough expansion spaces, adopt expansion cone 10 realizations to wait from bottom to top one-level expansion of hole diameter expansion sleeve 3, see Fig. 2.Adopt when once expanding, see Fig. 5, Fig. 6, one time expansion cone 10 is variable-diameter expansion cone, first well cementation is expanded again, and an expansion cone 10 is first at the interior reducing of realizing of horn mouth 9, as shown in Figure 5, reciprocity hole diameter expansion sleeve 3 expands with expansion tie back stem 1 and realizes that internal diameter is consistent again, as shown in Figure 6.
During reexpansion, be processed with the caulking gum 4 of oil and water contact expansible Deng hole diameter expansion sleeve 3 bottoms, see Fig. 3, Fig. 4, coordinate large scale reexpansion cone from top to bottom to expansion tie back stem 1 and wait hole diameter expansion sleeve 3 to wait hole diameter to expand with inner tube packer 12, realization waits the tieback of hole diameter expansion sleeve 3.After expansion, wait hole diameter expansion sleeve 3 internal diameters consistent with protective casing 5 internal diameters, and sealing rubber 4 glue of its underpart are close to well 7, as shown in Figure 5.
After expanding caulking gum 4 tightly be compressed in expansion tie back stem 1 and etc. between hole diameter expansion sleeve 3, hang and sealing for waiting hole diameter expansion sleeve 3 to provide, wait this moment hole diameter expansion sleeve 3 internal diameters to reach consistent with the protective casing 5 on top, realization waits hole diameter expansion sleeve 3 tiebacks; The guide shoe 6 of hole diameter expansion sleeve 3 bottoms such as drill, can carry out next step drillng operation, as shown in Fig. 5 (or Fig. 6).

Claims (3)

1. wait the apparatus for work of hole diameter expansion sleeve, it is characterized in that being formed by expansion sleeve tieback mechanism, guide shoe [6], expansion mechanism of sleeve pipe and sleeve pipe quadratic extension mechanism, wherein, the expansion sleeve tieback assembly is at the isometrical expansion tie back stem [1] of protective casing [5] bottom connection and protective casing [5], is provided with degradable ring [2] outside expansion tie back stem [1], expansion mechanism of sleeve pipe is upward to be provided with caulking gum [4] in the outside at expansion sleeve [3], expansion sleeve [3] bottom is provided with the horn mouth [9] of hole enlargement, the external diameter of horn mouth [9] is slightly less than expansion tie back stem [1] internal diameter, axially be provided with inner tube [11] along expansion sleeve [3], inner tube [11] bottom connects one-level expansion cone [10], bottom heavy caliber part and the heavy caliber of horn mouth [9] of one-level expansion cone [10] partly form the expansion of sliding and coordinate, the small-bore part in top of one-level expansion cone [10] is slidably matched with the front expansion sleeve [3] that expands, in the middle of one-level expansion cone [10], the excessive part of taper and horn mouth [9] conical transition zone form cone match, sleeve pipe quadratic extension mechanism arranges the compound expansion that is connected with inner tube [11] bottom and bores [102] completing expansion sleeve [3] after hole enlargement and the top of expansion tie back stem [1] joint portion, the heavy caliber part of compound expansion cone [102] forms with protective casing [5] inwall and is slidably matched, and expansion sleeve [3] inwall after the small-bore part of compound expansion cone [102] and a hole enlargement forms and is slidably matched, the wall thickness of degradable ring [2] is greater than the caulking gum [4] after pushing and the thickness sum of expansion sleeve [3].
2. the apparatus for work that waits the hole diameter expansion sleeve according to claim 1, it is characterized in that: also comprise also being provided with caulking gum [4] in the bottom of expansion sleeve [3] by the inner tube packer [12] that is arranged in compound expansion cone [102] top protective casings [5] in sleeve pipe quadratic extension mechanism.
3. according to the described operational method that waits the apparatus for work of hole diameter expansion sleeve of aforementioned claim 1 or 2, it is characterized in that:
(1) protective casing [5] is lowered to the rear well cementation of well [7] together with expansion tie back stem [1] and degradable ring [2];
(2) drill guide shoe [6] and complete drilling well and the reaming hole operation, be lowered to guide shoe [6], expansion sleeve [3] and expansion mechanism of sleeve pipe;
(3) promote inner tube, pull one-level expansion cone [10] to go upward to expansion sleeve [3] top, after expansion sleeve [3] once expanded, caulking gum [4] tightly was compressed between expansion tie back stem [1] and expansion sleeve [3], completes suspension and the sealing of expansion sleeve [3];
(4) expansion mechanism of sleeve pipe is proposed, be lowered to sleeve pipe reexpansion mechanism, during the top of the expansion sleeve [3] after compound expansion cone [102] arrives a hole enlargement and expansion tie back stem [1] joint portion, the afterburning inner tube [11] that promotes, driving compound expansion cone [102] be isometrical with protective casing [5] with expansion sleeve [3] with expansion tie back stem [1] joint portion globally expanding, completes the operation such as expansion such as hole diameter such as grade of sleeve pipe.
CN2011103367856A 2011-10-31 2011-10-31 Operating device and method for constant-borehole-diameter expandable casing Pending CN103089185A (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN105189636A (en) * 2013-06-28 2015-12-23 株式会社吴羽 Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resource
CN107013180A (en) * 2017-06-02 2017-08-04 中国石油天然气集团公司 The solvable expansion plugging device of pit shaft
CN108979591A (en) * 2018-09-14 2018-12-11 大港油田集团有限责任公司 A kind of two-tube overflow means
CN109267963A (en) * 2018-08-22 2019-01-25 中国石油集团长城钻探工程有限公司 A kind of equal hole diameters expansion sleeve blocking method
CN110014638A (en) * 2019-01-15 2019-07-16 中海石油(中国)有限公司上海分公司 Remember memory rubber packer and its processing unit (plant) and processing method
RU2714542C1 (en) * 2019-10-18 2020-02-18 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Installation method of an extensible column with threaded joints
CN114427366A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 Equal-borehole-diameter well wall repairing device and repairing method

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105189636A (en) * 2013-06-28 2015-12-23 株式会社吴羽 Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resource
CN107619593A (en) * 2013-06-28 2018-01-23 株式会社吴羽 A kind of rubber component of boring bar tool, and boring bar tool, and the recovery method of petroleum resources
US10414851B2 (en) 2013-06-28 2019-09-17 Kureha Corporation Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resource
CN107013180A (en) * 2017-06-02 2017-08-04 中国石油天然气集团公司 The solvable expansion plugging device of pit shaft
CN109267963A (en) * 2018-08-22 2019-01-25 中国石油集团长城钻探工程有限公司 A kind of equal hole diameters expansion sleeve blocking method
CN108979591A (en) * 2018-09-14 2018-12-11 大港油田集团有限责任公司 A kind of two-tube overflow means
CN110014638A (en) * 2019-01-15 2019-07-16 中海石油(中国)有限公司上海分公司 Remember memory rubber packer and its processing unit (plant) and processing method
CN110014638B (en) * 2019-01-15 2021-03-30 中海石油(中国)有限公司上海分公司 Memory rubber packer, and processing device and processing method thereof
RU2714542C1 (en) * 2019-10-18 2020-02-18 Публичное акционерное общество «Татнефть» имени В.Д. Шашина Installation method of an extensible column with threaded joints
CN114427366A (en) * 2020-10-29 2022-05-03 中国石油化工股份有限公司 Equal-borehole-diameter well wall repairing device and repairing method

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Application publication date: 20130508