CN101772617B - Method for altering the stress state of a formation and/or a tubular - Google Patents
Method for altering the stress state of a formation and/or a tubular Download PDFInfo
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- CN101772617B CN101772617B CN200880101672.4A CN200880101672A CN101772617B CN 101772617 B CN101772617 B CN 101772617B CN 200880101672 A CN200880101672 A CN 200880101672A CN 101772617 B CN101772617 B CN 101772617B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/10—Setting of casings, screens, liners or the like in wells
- E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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- Piles And Underground Anchors (AREA)
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Abstract
A method for altering the stress state of a subterranean formation, comprises a) drilling a borehole into the formation, b) installing a tubular element (200) having a top end and a bottom end in the borehole, c) anchoring the tubular element to the formation at at least two points (201,202) along the length of the tubular element, and d) expanding (205) the tubular element, thereby inducing compression (300) between the two points. At least one anchoring point (504) may be selected such that a pair of adjacent anchoring points spans an unstable portion of the formation, anchoring means may be used, and the position of at least one anchor point (504) may be selected such that the distance (Sl) between that anchor point and an adjacent anchor point is less than the maximum length (E) of pipe that could be expanded between two anchor points without failing.
Description
To be the exercise question submitted on August 3rd, 2007 be the U. S. application No.60/953 of " being used for changing the method for the stress state on stratum " to the application, and 776 part continuation application is included this U. S. application in this paper with for referencial use at this.
Technical field
The present invention includes and a kind ofly change the method for the stress state of the subsurface formations with l fraction with tube element, described tube element is inflated and enters in this l fraction or be inflated against this l fraction.
Background technology
In the production and drilling process of reservoir, to industry is a problem that expense is very high for oil and natural gas by the damage of not firmly sandstone cementation, loose or soft rock.Depleted in many reservoir oil and natural gas production operation processes in the past that are easy to drilling well and production, much be to be arranged in expensive, problematic reservoir in the existing reserves that stay.Much be mechanical instability in these remaining reservoirs and drilling well and production problem that the generation expense is very high, such as compacting, depletion, water outlet and ground movement.
Cause when the natural gas, oil and the formation water that extract large volume from subsurface reservoir when initial pressure the reservoir reduces, the Reservoir Compaction phenomenon occurs.This phenomenon is that " introduction of reservoir geology mechanics ", author are " Colin Sayers and Peter M.T.M.Schutjens ", are published in the article of the 26th volume the 5th phase 597-601 page or leaf (" AnIntroduction To Reservior Geomechanics by Colin Sayers and Peter M.T.M.Schutjens published in The Leading Edge; Volume 26; Issue 5, pp.597-601 (May 2007) ") in " the exploration forward position " of publishing in May, 2007 and have a detailed description at exercise question.
It is because the sedimental weight on the oil and natural gas stratum is to be supported by the pressurization oil and natural gas in Rock Matrix and the blowhole that Reservoir Compaction occurs.When reservoir was depleted, the reduction of pressure was passed to depleted stratum with load, thereby made its compacting reduce the production capacity on stratum.If if underground compacting is very remarkable or the stratum is more shallow, this may cause obvious surface settlement, this surface settlement meeting hinders existing drilling well and produces infrastructure.In the situation that a plurality of oil gas fields are all produced from same reservoir or stratigraphic interval, step-down may occur in the regional area scope, causes between the oil gas field or the sedimentation in contiguous zone and soil run off.In addition, formation compaction also can cause compression and crooked damage the in the pay interval.
Well forms by two stages usually.In the phase I, with the drill string (or drilling rod) of the attached drill bit in bottom by kelly bar, TDS, rotating disk or be positioned at the coil system rotation on ground.When drill bit produced the hole in the stratum, the annular space that drilling mud cycles through between drill string and the borehole wall was transported to ground with the cooling drill bit and with smear metal (by the carg of drilling well generation).The hydrostatic pressure that is applied by the mud column in the hole prevents blowout, wherein when drill bit penetrates high pressure oil or natural gas payzone blowout may occur.If it is too low that mud pressure becomes, the stratum can force mud to spray from the hole, thereby causes blowout.On the contrary, too high if mud pressure becomes, it is enough large that differential pressure becomes, thereby so that mud flows into the stratum, cause lost circulation.
When the natural crack that provides mud can flow into new free space wherein, cave or depleted reservoir are provided drill bit, also lost circulation may occur.Drilling mud and drilling cuttings are missed and are caused lower rate of penetration and the obstruction of producing zone in the stratum.In serious situation, it can cause the calamitous out of control of well control system.In addition, fluid leakage is representing financial losses to the stratum, and it must be processed, and its impact is directly connected to every barrel drilling fluid cost and with respect to the leak-off velocity of time.
At next drilling phase, drill string and drill bit are moved out of, and well is served as a contrast to be called the tubing string of sleeve pipe by embedding.Sleeve pipe is used for the stable new well that forms and is convenient to isolate some zone of the contiguous hydrocarbon containing formation of well.In case sleeve pipe is fixed in the well with cement, less drill bit is inserted through sleeve pipe and is used for deeper piercing the stratum.Repeat this process, a lot of section sleeve pipes are installed, until reach desired depth.When well is finished, the similar extension of whole casing string, inverted telescope, wherein the sleeve pipe that reduces of diameter is arranged according to nested configuration.
The result of this process is that the sleeve pipe in the interval of well bottom has than the remarkable less diameter of the casing diameter in the interval of well top.Operating personnel often need to begin with larger initial bore hole drilling process to reach the plan degree of depth.Larger initial bore hole increases owing to time lag, rig time and equipment operating cause cost.In some cases, the ultimate depth of well is subject to the restriction that initial bore hole requires, and some project is because this is former thereby be considered to uneconomic.
In order to address this problem, oil and natural gas industry has begun Casing Drilling Technique is tested, and this technology relates to radially expands each casing string after they being installed in the well, so that the maximization of available diameter.
Although the application of Expansion Pipe Technology helps to reduce the problem relevant with the flexible effect of drilling and well completion, yet traditional problem still occurs, such as compacting, depletion, water outlet and ground movement, make a lot of wells become the very high and time-consuming project of expense.
Comprise with drill string for the treatment of the common boring method that relates to compacting and depleted reservoir situation within the unstable or depleted drilling-in jobs number meter drill string being tripped out from the hole, with under the sleeve pipe to the bottom and be fixed in the cement.The purpose of this method is to isolate overlying rock as much as possible so that the negative effect of the rework solution of leakage minimizes.Yet, in case on cover the remainder of reservoir drilled and then and unstable or depleted reservoir penetrated, pressure reduction will still can make the mud system that increases the weight of flow into low-pressure stratum, it stops up the stratum.
Another kind method is to creep into until the bottom in " (fau out) occurring " hole is shifted out drilling rod, and used the sealing device such as cement plug to block leakage from the hole.After installing cement plug, sleeve pipe can be lowered in the boring top that arrives the leakage district, in this leakage district, with loss of weight mud drilling reservoir to prevent further leakage.Yet because rod pulling needs time and weighted mud and cement to miss payzone, these methods are all unsatisfactory.
United States Patent (USP) 5,957,225 disclose a kind of method that pierces reservoir formation unstable or depleted with respect to adjacent stratum, comprising: pierce the zone on this unstable or depleted reservoir, to form well in this zone; With elongated liner assembly is lowered to well, described liner assembly has by boring the part that material forms and being arranged near the liner assembly bottom cutting members.Then liner assembly is rotated to drill into this unstable or depleted zone by the zone on the unstable or depleted stratum, thereby well is extended.Then liner assembly is placed in the well, drill bit be lowered to well and be rotated to cut wear bushing pipe by the part that can bore material and form.Although this method can make the well control processed problem relevant with unstable or depleted reservoir minimize, the flexible effect problem of the nested cannula that it and unresolved in a conventional manner boring produce.In addition, the method needs special tool, and this special tool fabricating cost is high and may have the uncertainty relevant with operation.
Therefore, need a kind of be used to creeping into by caving ground and avoiding using the technology of usually required nested cannula.
Summary of the invention
The present invention includes a kind of method of stress state of the subsurface formations that has l fraction for change, comprising: in the stratum, get out boring and enter the l fraction on stratum; Mounting pipe linear element, described tube element have top ends and the bottom of the l fraction that strides across the stratum; Top ends and the bottom of tube element are anchored to the stratum; With tube element is expanded, thereby between top ends and bottom, produce compression.This method also provides a kind of technology for changing the stress state in the tube self.
Method of the present invention can be used for passing the well on the stratum with l fraction.Method of the present invention comprises: tube element is anchored at least one section of l fraction on stratum and under; With tube element is expanded.In certain embodiments, compressive force is applied on the top ends and the l fraction between the bottom of tube of expansion.
In other embodiments, with the preset distance setting, and this tube expands between described anchor point along tube for three or more anchor points.By providing topmost and at least one anchor point between the nethermost anchor point, tensile stress is only along the distance accumulation between the adjacent anchor point, otherwise tensile stress will accumulate in the expansion process of the whole length of tube.This has reduced again tube suffered the maximum tensile strength in expansion process.In certain embodiments, compressive force is applied on the stratum between every pair of anchor point.
Description of drawings
Can better understand the present invention with reference to accompanying drawing to the following description of non-limiting example by reading, wherein the same parts in each accompanying drawing is represented by same reference numerals, and described accompanying drawing is briefly described below:
Fig. 1 is the schematic diagram that passes the well on the stratum with l fraction.
Fig. 2 is the schematic diagram that embedding is lined with the well of tube element.
Fig. 3 expand in the stratum or the schematic diagram of the tube element of expanded against formation.
Fig. 4 is the lateral view of an embodiment of the anchor assemblies that can be connected with tube element.
Fig. 5 is the sectional view that the anchor assemblies of Fig. 4 is in the withdrawal pattern.
Fig. 6 is the sectional view that the anchor assemblies of Fig. 4 is in expansion mechanism.
Fig. 7 is the schematic diagram in the expandable tubular element of a plurality of somes grapplings.
It should be understood that these accompanying drawings do not draw and be not used in size, relative size or other quantitative characteristic of the parts that embody invention in proportion.
The specific embodiment
In this manual, the term tube element meaning comprises any tube that will be inflated.Sleeve pipe, open hole bushing pipe or other well tube can expand by the method and apparatus of describing and asking for protection at this.
With reference to Fig. 1, show well 100 and creep into by stratum 101.Stratum 101 has the l fraction 102 that is passed by well 100.L fraction 102 can be the stratum that possible bring drilling well and a production difficult problem of any type.For example, l fraction 102 can be the ground layer segment that suffers compacting, depletion, water outlet or ground movement.
Well 100 can use coil pipe, inflatable well casing or any other known method to get out.In this exemplary embodiment, the tube 103 that well 100 usefulness are attached to drill bit 104 gets out.Tube 103 can be for example expandable sleeve, expandable liner, traditional sleeve pipe or the drilling rod of any other known type.Alternatively, but the embedding of the well on the unstable region 102 part is lined with tube 105.
In case well 100 is crept into by l fraction 102, as shown in Figure 2, tube element 200 can stride across l fraction 102 and install.Tube element 200 can be the joint of the drilling well tube of for example expandable sleeve, expandable liner or any other type.Usually, these joints are that about 30 to 40 feet (about 9 to 12 meters) are long; But, can be used for adapting to described application according to the tube element of conventional specification manufacturing.Alternatively, the tube element of an above length can be used for embedding lining l fraction 102.
With reference to figure 3, tube element 200 uses any traditional expanding methods to be inflated against the stratum or to be inflated and enters the stratum, as shown in 205.In one embodiment, tube element 200 can use the expanding method of solid expandable tubular (solid expandable tubular or SET) to be inflated.Bottom the SET system is a tank that is known as the transmitter (not shown), and it holds expansion cone.This transmitter is formed by thin-walled, high strength steel structure, and it has the wall thickness thinner than expandable sleeve.In the method, expansion cone 204 can apply the liquid differential pressure and moves through tube element 200 by striding across cone itself.Differential pressure can be pumped by the inner post that is connected with cone.
In another embodiment, tube element 200 can use pure mechanical means to be inflated.In this embodiment, expansion assembly 203 can move through tube element 200 by applying direct mechanical pulling force or thrust (such as shown in the arrow 206).Mechanical force can apply by raising (expansion of " from bottom to top ") with crane or other ground hoisting tool or reducing (expansion of " from top to bottom ") inner post.Alternatively, underground hoisting machine or clamping device can be used for applying required power.
Still with reference to Fig. 3, no matter utilize which kind of expansion gear, the expanded radially of tube causes the axial shortening of this tube usually.Therefore, when expansion assembly 203 moved along the length of tube element 200, the stress in the pipe was tending towards top ends 201 and bottom 202 are moved to together.But because end 201,202 is anchored into stratum 101, these stress produce the power that is applied to the stratum, thereby it changes the stress state in the well 101.Therefore, expansion enters the stratum or expanded against formation produces the compressive force that acts on the l fraction 102, shown in arrow 300.If applied enough large compressive force, can increase the fracture gradient on stratum.
In addition, if l fraction 102 is the depleted areas on stratum 101, the tube that then expands and compressive force can be used for making the remainder isolation on l fraction and stratum.If depleted area is not isolated, operating personnel may run into circulation fluid loss problem, thereby need to bore another mouthful well or take other remedial measure.If l fraction 102 is exhalant regions, expansion enters the stratum or expanded against formation can be used for producing sealing, makes the remainder isolation on this zone and stratum.
The point that it should be understood that the grappling expandable tubular element needn't be in its end.But design disclosed herein can be applicable to along the arbitrary part of tube element length at the tube element of some place's grappling more than.
If tube element 200 will be anchored on one or more positions wittingly, grappling can realize by various known methods.In one embodiment, tube element 200 can comprise one or more anchor assemblies 400 that are positioned at desired one or more anchor points, such as being positioned at top ends 201 and/or bottom 202 or one or more points therebetween.Fig. 4 shows an example of a kind of the application's of can be used for anchor assemblies.In an illustrated embodiment, anchor assemblies 400 is attached to the bottom 202 of tube element 200.Anchor assemblies 400 comprises one or more splines 401, and described spline is in collapsed mode as shown in Figure 5 at first.When tube element 200 expanded radiallys (for example by making expansion cone 203 move through tube 200), the radially outer power that is applied by expansion assembly 203 makes spline 401 move into as shown in Figure 6 expansion mechanism.At this expanding position, spline 401 engages the stratum, and tube element is anchored to the stratum.It should be understood that spline 401 can be any shape or structure.Equally, they can be replaced with any other coupling device, comprise surperficial outward extending fixing or movable element, elastic body, tooth, ridge, packer or similar item from tube 200.In certain embodiments, grappling can be only realize against drill hole wall by tube is expanded, and do not need extra coupling device.
After tube element 200 expansions entered stratum 101 and are anchored into stratum 101, operating personnel can continue drilling well, maybe can carry out the underground work of any other expectation by creeping into by l fraction 102 and well 100 being extended.
Although when tube element 200 reaches the swell diameter of expectation, stopped to increase by the caused radial stresses of expanded radially, but different performances can be arranged (particularly by the caused stress of axial shortening, be fixed in the boring at two (or a plurality of) some places at unexpanded sleeve pipe, in situation about being fixed at point 201,202 places).The situation of unexpanded sleeve pipe in two or more somes place is fixed on boring is called as " fixing-fixing " tube hereinafter.Have a mind to the fixing-fixing example of tube although above described one, even tube element (or its part) is not to be fixed at both ends wittingly, also may occur fixing-fixing tube.
For example, if sleeve pipe was snapped on the hole wall before expanding, its bottom, will be produced and fix-fixing tube in the starting point grappling (so that bloating plant can upwards be drawn from the bottom) of expanding by wittingly.Similarly, if drill hole wall " grasps " sleeve pipe along its length at two or more some places, will form fixing-fixing tube.Have been found that sometimes expectation gets out a hole that has close to the diameter of the swell diameter of sleeve pipe, this possibility that contacts of blocking occurs thereby be increased between tube and the drill hole wall.In addition, can have the following situation: in these situations, hole wall does not keep its integrality, but is moved or is out of shape so that the shape of holing or diameter change.In these cases, sleeve pipe its lay between time and its expansion time during the possibility that is fixed of one or more some place in boring increase.If delay is being arranged during this period, the possibility of boring distortion further increases, and the possibility of therefore blocking further increases.The boring unstable and that easily cave in of crooked boring and its mesospore also more likely produces fixing-fixing situation.
Similarly, because situation and the character of the variation on stratum, well bore wall usually has shoulder or other protuberance in the boring of projecting to.This is common especially in inclined shaft, the problem that usually can cause tool card at shoulder or protuberance place or be destroyed by shoulder or protuberance.Therefore, in one embodiment, the protuberance in the well can be used for making the most of the advantage by intentionally tube element being anchored on shoulder or the protuberance.In this embodiment, the position of shoulder can be by carrying out conventional logging operation and changing the well design so that anchor assemblies is aimed at shoulder to determine.
Some make fixing-fixedly the advantage of the embodiment that expands of tube comprises one or more in the following advantage:
■ can make the l fraction isolation on stratum and need not well is carried out the extra operation that makes a trip;
■ is owing to using expandable sleeve or bushing pipe to reduce the original dimension of well;
■ can make the volume increase of depleted stratum;
■ can isolate water-yielding stratum;
■ avoids boring for the l fraction of walking around the stratum needs of another mouthful well;
The sealing device that ■ is formed by anchoring device has been eliminated the needs to cement; With
■ reduces drilling cost and rig time.
Yet, no matter whether one or more in the anchor point have a mind to produce, have been found that occur fixing-fixedly in the situation of tube, axial stress moves to another fixed point along with expansion gear along sleeve pipe from a fixed point and accumulates.Along with the axial stress accumulation, they may surpass the maximum stress that tube can bear, thereby make tube fracture or destruction.Therefore, need to there be a kind of mode to prevent from accumulating along the overstress of its length in the expandable tubular thing fixing more than a point.
Have been found that by guaranteeing that distance between any two anchor points less than accumulation calamitous stress required distance in the expansion process, then can avoid because the inefficacy that expansion causes.No matter whether anchor point has a mind to arrange, be not always the case.Therefore, a kind of preferred technology is to determine the fixing-fixing axial distance that can be tolerated of the expansion in the tube, and then the anchor point that is close together than preset distance is provided.Fig. 7 schematically shows this design.
In Fig. 7, the bottom of expandable tubular thing is anchored into the stratum at anchor point 500 places wittingly, can be drawn the fixed point that leans on thereon so that expansion cone (showing for simplicity) to be provided.Some some places on the bottom, such as point 502, tube can snap into the stratum, and thisly block or have a mind to, or the part of the l fraction of the drill hole wall result of collapsing.This will produce fixing-fixing tube, and wherein the distance between the anchor point 500 and 502 represents with L.
Given some information about tube and expansion ratio just can calculate the maximum length of the pipe that can expand and not lose efficacy between two anchor points.This distance is represented by E that at Fig. 7 in the E situation less than L, can be desirably in increases at least one anchor point 504 between anchor point 500 and 502.By this way, form two parts with length S1 and S2 of inflatable pipe, these two length are all short than E.When the tube of Fig. 7 was inflated, axial stress accumulated in the expansion process of every section S1 and S2, but can not exceed L, because make zero in its anchor point 504 place in the middle of each or close to zero.
In certain embodiments, can provide anchor point with desired spacing with as a kind of preventive action.In other embodiments, can determine determining that the expandable tubular thing increases anchor point after being stuck in the boring, cause the tube of undesirable fixing-fixedly.The spacing of anchor point can be subject to or can not be subject to whether existing on boring stratum on every side the impact of l fraction.
Those skilled in the art should be appreciated that in the situation that does not depart from scope of the present invention, may much revise and change according to the disclosed embodiments, structure, materials and methods.For example, the number of anchor point, size, shape and/or structure can change widely.Therefore, subsequently the scope of appending claims and functional equivalent scheme thereof should not be subjected to said and shown in specific embodiment limit because these embodiment are in fact exemplary, the element of describing separately can arbitrarily make up.
Claims (11)
1. method that be used for to change the stress state of subsurface formations comprises:
A) boring one is bored in the stratum;
The tube element that b) will have top ends and a bottom is installed in the boring;
C) tube element is located to anchor to the stratum along the length of tube element at 2; With
D) tube element is expanded, thereby between two points, produce compression.
2. the method for claim 1, wherein step c) comprise that expanded against formation or expansion enter in the stratum.
3. the method for claim 1, wherein steps d) comprise that the pulling expansion assembly passes through tube element.
4. the method for claim 1, wherein step c) comprise that configuration anchor assemblies, described anchor assemblies comprise one or more stratum coupling device.
5. method as claimed in claim 4, wherein step c) also comprise and make the stratum coupling device move to expansion mechanism from collapsed mode.
6. the method for claim 1, wherein step c) comprising:
C1) carry out logging operation;
C2) shoulder or the protuberance in the well of location;
C3) against at least one shoulder or protuberance grappling tube element.
7. the method for claim 1, wherein step c) be included in and form sealing between tube element and the stratum.
8. the method for claim 1, wherein at least one anchor point is selected such that a pair of adjacent anchor point strides across the l fraction on stratum.
9. method as claimed in claim 8, wherein l fraction is water exit interval.
10. the method for claim 1, wherein the position of at least one anchor point is selected such that the maximum length of the pipe that the distance between anchor point and the adjacent anchor fixed point did not lose efficacy less than being inflated between two anchor points.
11. the method for claim 1, wherein at least one anchor point is not to form by tube element is expanded.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95377607P | 2007-08-03 | 2007-08-03 | |
| US60/953,776 | 2007-08-03 | ||
| PCT/US2008/071732 WO2009020827A2 (en) | 2007-08-03 | 2008-07-31 | Method for altering the stress state of a formation and/or a tubular |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101772617A CN101772617A (en) | 2010-07-07 |
| CN101772617B true CN101772617B (en) | 2013-01-02 |
Family
ID=40341974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880101672.4A Expired - Fee Related CN101772617B (en) | 2007-08-03 | 2008-07-31 | Method for altering the stress state of a formation and/or a tubular |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101772617B (en) |
| BR (1) | BRPI0814279A2 (en) |
| CA (1) | CA2694822A1 (en) |
| GB (1) | GB2464233B (en) |
| WO (1) | WO2009020827A2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353599A (en) * | 1964-08-04 | 1967-11-21 | Gulf Oil Corp | Method and apparatus for stabilizing formations |
| CN1717530A (en) * | 2002-11-26 | 2006-01-04 | 国际壳牌研究有限公司 | Method of installing a tubular assembly in a wellbore |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU772327B2 (en) * | 1998-12-22 | 2004-04-22 | Weatherford Technology Holdings, Llc | Procedures and equipment for profiling and jointing of pipes |
| US20040011534A1 (en) * | 2002-07-16 | 2004-01-22 | Simonds Floyd Randolph | Apparatus and method for completing an interval of a wellbore while drilling |
| WO2006012530A1 (en) * | 2004-07-23 | 2006-02-02 | Baker Hughes Incorporated | Open hole expandable patch |
| FR2901837B1 (en) * | 2006-06-06 | 2015-05-15 | Saltel Ind | METHOD AND DEVICE FOR SHAPING A WELL BY HYDROFORMING A METAL TUBULAR SHIRT, AND SHIRT FOR SUCH USAGE |
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2008
- 2008-07-31 CN CN200880101672.4A patent/CN101772617B/en not_active Expired - Fee Related
- 2008-07-31 CA CA2694822A patent/CA2694822A1/en not_active Abandoned
- 2008-07-31 BR BRPI0814279-3A2A patent/BRPI0814279A2/en not_active IP Right Cessation
- 2008-07-31 WO PCT/US2008/071732 patent/WO2009020827A2/en active Application Filing
- 2008-07-31 GB GB1001039.5A patent/GB2464233B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3353599A (en) * | 1964-08-04 | 1967-11-21 | Gulf Oil Corp | Method and apparatus for stabilizing formations |
| CN1717530A (en) * | 2002-11-26 | 2006-01-04 | 国际壳牌研究有限公司 | Method of installing a tubular assembly in a wellbore |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009020827A2 (en) | 2009-02-12 |
| GB2464233A (en) | 2010-04-14 |
| GB2464233B (en) | 2012-06-27 |
| WO2009020827A3 (en) | 2009-04-23 |
| CA2694822A1 (en) | 2009-02-12 |
| CN101772617A (en) | 2010-07-07 |
| GB201001039D0 (en) | 2010-03-10 |
| BRPI0814279A2 (en) | 2015-02-03 |
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