CN109184560A - The track control method and device of staged horizontal well - Google Patents
The track control method and device of staged horizontal well Download PDFInfo
- Publication number
- CN109184560A CN109184560A CN201811122140.0A CN201811122140A CN109184560A CN 109184560 A CN109184560 A CN 109184560A CN 201811122140 A CN201811122140 A CN 201811122140A CN 109184560 A CN109184560 A CN 109184560A
- Authority
- CN
- China
- Prior art keywords
- oil reservoir
- purpose oil
- probing
- horizontal segment
- tomography
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000003325 tomography Methods 0.000 claims abstract description 112
- 238000005553 drilling Methods 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 211
- 239000010410 layer Substances 0.000 description 16
- 241001074085 Scophthalmus aquosus Species 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005251 gamma ray Effects 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses the track control methods and device of a kind of staged horizontal well, belong to field of oilfield exploitation.This method comprises: according to seismic data obtain the depth of purpose oil reservoir, the variation of stratigraphic dip of purpose oil reservoir, the turn-off of tomography and fault wall relative position, since the development wells of purpose oil reservoir, the successively constantly straight well section, first horizontal segment, ladder well section of the probing direction completion staged horizontal well of adjustment drill bit and the probing of the second horizontal segment.The present invention can obtain the depth of purpose oil reservoir in advance according to seismic data, the relative position of the fault wall of the turn-off and tomography two sides of tomography, therefore during probing, it can be directly according to the distance of the data point reuse probing got in advance and probing direction, so that drill bit can accurately enter purpose oil reservoir, and enter the second horizontal segment of purpose oil reservoir from the first horizontal segment of purpose oil reservoir, improve the control precision of the well track of the staged horizontal well.
Description
Technical field
The present invention relates to field of oilfield exploitation, in particular to a kind of the track control method and dress of staged horizontal well
It sets.
Background technique
The tomography root of Complex Fault Block Oil Reservoir is often the enrichment region of remaining oil, and generally by staged horizontal well pair, this is disconnected
The remaining oil of layer root is exploited.
In the related technology, it during staged horizontal well is drilled in Complex Fault Block Oil Reservoir, needs to adjust at tomography
Drill bit direction, to guarantee that drill bit can be from the oil reservoir for entering the tomography other side as early as possible in the oil reservoir of tomography side.Staff
The brill of staged horizontal well is typically carried out to adjust the probing direction of drill bit according to well logging data and itself judgement
It visits, controls the well track of staged horizontal well.
But since the adjustment direction of drill bit is to judge determination according to itself of well logging data and staff,
Therefore biggish error can be generated, cannot be accurately controlled so as to cause the well track of staged horizontal well, and then lead to oil reservoir
Drilling ratio it is lower.
Summary of the invention
The embodiment of the invention provides the track control methods and device of a kind of staged horizontal well, can solve phase
The lower problem of the hole trajectory control precision of staged horizontal well in the technology of pass.The technical solution is as follows:
On the one hand, a kind of track control method of staged horizontal well is provided, which comprises
The development wells of purpose oil reservoir are obtained, the purpose oil reservoir is located in tomography；
The depth of the purpose oil reservoir is obtained according to seismic data；
According to the depth and the development wells of the purpose oil reservoir, the straight well section of the staged horizontal well is drilled,
Drill bit is set to enter the purpose oil reservoir；
The probing direction of the drill bit is adjusted according to the extending direction of the first horizontal segment of the purpose oil reservoir, and described
It is drilled in the first horizontal segment of purpose oil reservoir at the fault plane of the tomography, obtains the first level of the staged horizontal well
Section；
The relative position of the turn-off of the tomography and the fault wall of the tomography two sides is obtained according to the seismic data；
According to the relative position of the turn-off and the fault wall of the tomography two sides, the probing direction is adjusted, described disconnected
The ladder well section of the staged horizontal well is drilled in layer；
The probing direction is adjusted according to the extending direction of the second horizontal segment of the purpose oil reservoir, in the purpose oil reservoir
The second horizontal segment in drill the second horizontal segment of the staged horizontal well.
Optionally, described to be drilled at the fault plane of the tomography in the first horizontal segment of the purpose oil reservoir, it obtains
The first horizontal segment of the staged horizontal well, comprising:
The stratigraphic dip of the first horizontal segment of the purpose oil reservoir is obtained according to seismic data；
It is drilled in the first horizontal segment of the purpose oil reservoir, and in drilling process, according to the purpose oil reservoir
First horizontal segment stratigraphic dip variation, adjust the probing direction.
Optionally, the relative position according to the turn-off and the fault wall of the tomography two sides adjusts the probing side
To drilling the ladder well section of the staged horizontal well in the tomography, comprising:
When the second fault wall rises relative to the first fault wall, the probing direction is adjusted upward, and bore in the tomography
First distance is visited, the first distance is equal to the turn-off；
When second fault wall declines relative to first fault wall, the probing direction is adjusted downwards, and described
The first distance is drilled in tomography；
Wherein first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall be packet
Include the fault wall of the second horizontal segment of the purpose oil reservoir.
Optionally, described to be drilled at the fault plane of the tomography in the first horizontal segment of the purpose oil reservoir, it obtains
The first horizontal segment of the staged horizontal well, comprising:
The distance between the straight well section and the fault plane are determined as the first probing distance；
The first probing distance is drilled in the first horizontal segment of the purpose oil reservoir, obtains the staged horizontal well
First horizontal segment.
Optionally, the relative position according to the turn-off and the fault wall of the tomography two sides adjusts the probing side
To, comprising:
Obtain well logging data；
According to the relative position of the fault wall of the tomography two sides and the well logging data, the probing side is adjusted
To.
Optionally, second level that the staged horizontal well is drilled in the second horizontal segment of the purpose oil reservoir
Section, comprising:
The stratigraphic dip of the second horizontal segment of the purpose oil reservoir is obtained according to seismic data；
It is drilled in the second horizontal segment of the purpose oil reservoir, and in drilling process, according to the purpose oil reservoir
The second horizontal segment stratigraphic dip variation, adjust the probing direction.
On the other hand, a kind of hole trajectory control device of staged horizontal well is provided, described device includes:
First obtains module, and for obtaining the development wells of purpose oil reservoir, the purpose oil reservoir is located in tomography；
Second obtains module, for obtaining the depth of the purpose oil reservoir according to seismic data；
First probing module drills the ladder for the depth and the development wells according to the purpose oil reservoir
The straight well section of formula horizontal well makes drill bit enter the purpose oil reservoir；
Second probing module, the extending direction for the first horizontal segment according to the purpose oil reservoir adjust the drill bit
Direction is drilled, and is drilled at the fault plane of the tomography in the first horizontal segment of the purpose oil reservoir, the ladder is obtained
The first horizontal segment of formula horizontal well；
Third obtain module, for obtained according to the seismic data tomography turn-off and the tomography two sides
Fault wall relative position；
Third drills module, for the relative position according to the turn-off and the fault wall of the tomography two sides, described in adjustment
Direction is drilled, the ladder well section of the staged horizontal well is drilled in the tomography；
4th probing module, the extending direction for the second horizontal segment according to the purpose oil reservoir adjust the probing side
To drilling the second horizontal segment of the staged horizontal well in the second horizontal segment of the purpose oil reservoir.
Optionally, the second probing module, comprising:
First acquisition submodule is inclined for obtaining the stratum of first horizontal segment of the purpose oil reservoir according to seismic data
Angle；
First probing submodule, for being drilled in the first horizontal segment of the purpose oil reservoir, and in drilling process
In, the stratigraphic dip of the first horizontal segment of the purpose oil reservoir got according to first acquisition submodule, described in adjustment
Drill direction.
Optionally, the third drills module, is used for:
When the second fault wall rises relative to the first fault wall, the probing direction is adjusted upward, and bore in the tomography
First distance is visited, the first distance is equal to the turn-off；
When second fault wall declines relative to first fault wall, the probing direction is adjusted downwards, and described
The first distance is drilled in tomography；
Wherein, first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall is
The fault wall of the second horizontal segment including the purpose oil reservoir.
Optionally, the second probing module, comprising:
First determine submodule, for by the distance between the straight well section and the fault plane be determined as the first probing away from
From；
First probing submodule determines submodule for drilling described first in the first horizontal segment of the purpose oil reservoir
Determining the first probing distance, obtains the first horizontal segment of the staged horizontal well.
Optionally, the third drills module, is used for:
Obtain well logging data；
According to the relative position of the fault wall of the tomography two sides and the well logging data, the probing side is adjusted
To.
Optionally, the 4th probing module, is used for:
The stratigraphic dip of the second horizontal segment of the purpose oil reservoir is obtained according to seismic data；
It is drilled in the second horizontal segment of the purpose oil reservoir, and in drilling process, according to the purpose oil reservoir
The second horizontal segment stratigraphic dip variation, adjust the probing direction.
Another aspect provides a kind of computer readable storage medium, is stored in the computer readable storage medium
Instruction, when the computer readable storage medium is run on computers, so that computer executes rank described in above-mentioned aspect
The track control method of ladder type horizontal well.
Technical solution bring beneficial effect provided in an embodiment of the present invention includes at least:
The embodiment of the invention provides the track control methods and device of a kind of staged horizontal well, can be with base area
Shake data obtains the depth of purpose oil reservoir, the relative position of the fault wall of the turn-off and tomography two sides of tomography in advance, therefore is boring
It, can be directly according to the distance of the data point reuse probing got in advance and probing direction, so that boring during spy
Head can accurately enter purpose oil reservoir, and enter the second horizontal segment of purpose oil reservoir from the first horizontal segment of purpose oil reservoir, will not make
It obtains drill bit to deviate oil reservoir or drill oil reservoir, improves the control precision of the well track of the staged horizontal well, and then improve
The Drilling ratio of oil reservoir.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of track control method flow chart of staged horizontal well provided in an embodiment of the present invention；
Fig. 2 is the track control method flow chart of another staged horizontal well provided in an embodiment of the present invention；
Fig. 3 is a kind of well track figure of the downstairs formula horizontal well provided in an embodiment of the present invention in tomography；
Fig. 4 is a kind of well logging curvilinear characteristic figure provided in an embodiment of the present invention；
Fig. 5 is a kind of drilling method flow chart of the first horizontal segment of staged horizontal well provided in an embodiment of the present invention；
Fig. 6 is a kind of schematic diagram at computed tomography inclination angle provided in an embodiment of the present invention；
Fig. 7 is a kind of well track figure of the upper staged horizontal well provided in an embodiment of the present invention in tomography；
Fig. 8 is a kind of drilling method flow chart of the second horizontal segment of staged horizontal well provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation of the hole trajectory control device of staged horizontal well provided in an embodiment of the present invention
Figure；
Figure 10 is a kind of structural schematic diagram of second probing module provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of track control methods of staged horizontal well, and referring to Fig. 1, this method can
To include:
Step 101, the development wells for obtaining purpose oil reservoir, the purpose oil reservoir are located in tomography.
Purpose oil reservoir refers to that the oil reservoir to be exploited of staged horizontal well, tomography refer to that rock stratum or rock mass occur along the plane of fracture
The construction being obviously displaced.
Step 102, the depth that the purpose oil reservoir is obtained according to seismic data.
The seismic data is the data collected by artificial excitation's seismic wave, which can corresponsively lowerly
The construction feature of layer and spatial position.Staff or hole trajectory control device can determine stratum according to the seismic data
Lithology, thickness, depth and interlayer contact relationship, and a possibility that determining stratum oily.Wherein, which includes purpose oil
Layer, the depth on stratum includes the depth of the purpose oil reservoir.The depth of the purpose oil reservoir refers to the layer top of the purpose oil reservoir to benchmark
The distance in face.
Step 103, depth and the development wells according to the purpose oil reservoir, drill the straight well of the staged horizontal well
Section makes drill bit enter the purpose oil reservoir.
At this point, the well track of the staged horizontal well is plumb line of the earth's surface to the purpose oil reservoir.
Step 104, the probing direction that drill bit is adjusted according to the extending direction of the first horizontal segment of the purpose oil reservoir, and at this
It is drilled at the fault plane of the tomography in the first horizontal segment of purpose oil reservoir, obtains the first horizontal segment of the staged horizontal well.
The fault plane refers to the contact surface of two fault walls in tomography.When the first horizontal segment for completing the staged horizontal well
Probing after, the well track of the staged horizontal well can be L-shaped.
The opposite position of the fault wall of step 105, the turn-off that the tomography is obtained according to the seismic data and the tomography two sides
It sets.
The turn-off refers to the relative distance in the fault wall of tomography two sides between oil reservoir.
Step 106, according to the relative position of the turn-off and the fault wall of the tomography two sides, adjust the probing direction, it is disconnected at this
The ladder well section of the staged horizontal well is drilled in layer.
The ladder well section is in the staged horizontal well for connecting the well section of horizontal segment.
Step 107 adjusts the probing direction according to the extending direction of the second horizontal segment of the purpose oil reservoir, in purpose oil
The second horizontal segment of the staged horizontal well is drilled in second horizontal segment of layer.
So far, the drill bit completes the probing of entire staged horizontal well, and the staged horizontal well is from purpose oil reservoir
First horizontal segment is stepped to the well track between the second horizontal segment of purpose oil reservoir.
In conclusion the embodiment of the invention provides a kind of track control method of staged horizontal well, this method
The depth of purpose oil reservoir, the opposite position of the fault wall of the turn-off and tomography two sides of tomography can be obtained in advance according to seismic data
It sets, therefore during probing, directly according to the distance of the data point reuse probing got in advance and direction can be drilled,
So that drill bit can accurately enter purpose oil reservoir, and enter the second level of purpose oil reservoir from the first horizontal segment of purpose oil reservoir
Section will not make drill bit deviate oil reservoir or drill oil reservoir, improve the control precision of the well track of the staged horizontal well,
And then improve the Drilling ratio of oil reservoir.
Fig. 2 is the track control method of another staged horizontal well provided in an embodiment of the present invention, such as Fig. 2 institute
Show, this method may include:
Step 201, the development wells for obtaining purpose oil reservoir, the purpose oil reservoir are located in tomography.
Wherein, which is located in the fault wall (namely fault block) of tomography two sides, is that the staged horizontal well will be exploited
Oil reservoir.The development wells of the oil reservoir of the purpose can be determined according to surface condition.And the development wells are the staged water
The coordinate of the well head of horizontal well that is to say the starting point coordinate of the well track of the staged horizontal well.
Step 202, the depth that the purpose oil reservoir is obtained according to seismic data.
The seismic data is the data collected by artificial excitation's seismic wave.Staff or hole trajectory control dress
Setting can be by studying the propagation condition of the seismic wave in the earth formation, to be inferred to the construction feature and space bit of subsurface formations
It sets.It is also possible to determine lithology, thickness, depth and the interlayer contact relationship on stratum according to the seismic data, and determine stratum
A possibility that oily.Wherein, which includes purpose oil reservoir, and the depth on stratum includes the depth of the purpose oil reservoir.The purpose
The depth of oil reservoir refers to the layer top of the purpose oil reservoir to the distance of datum level.The depth of the purpose oil reservoir can be according to the seismic wave
The spread speed of the time and the seismic wave that travel to the purpose oil reservoir determine.
Step 203, depth and the development wells according to the purpose oil reservoir, drill the straight well of the staged horizontal well
Section makes drill bit enter the purpose oil reservoir.
The straight well section refers to for being connected to the well section of earth's surface Yu purpose oil reservoir in the staged horizontal well, and the straight well section
Well track is plumb line.Fig. 3 is a kind of well track of the downstairs formula horizontal well provided in an embodiment of the present invention in tomography
Figure.Referring to Fig. 3, the extending direction of the straight well section of the staged horizontal well is parallel to the wellbore of gravity direction namely the straight well section
Track is a plumb line.
When drilling the straight well section, the depth of the purpose oil reservoir that can be got first according to seismic data is from determining
It is drilled at development wells along vertical direction.According to the depth of purpose oil reservoir determine will close to the purpose oil reservoir (for example,
Drill bit is 200 meters at a distance from the purpose oil reservoir) when, well logging data is obtained in subsequent probing.It is surveyed according to this with brill
Well data, can accurately judge whether the straight well section enters the purpose oil reservoir.Wherein the well logging data may include: to bore
Head bores the data such as lithology and the oil-gas possibility on the stratum met.Oil reservoir is the sandstone of oily, if drill bit has crept into sandstone, according to
Sandstone can be shown by boring the well logging result that well-log information obtains, and have oil/gas show, can be determined into purpose
Oil reservoir.If drill bit has drilled out sandstone, creep into mud stone, well logging result can then show mud stone, and without oil/gas show, can be with
It is determining not enter purpose oil reservoir also or drilled purpose oil reservoir.
Fig. 4 is a kind of well logging curvilinear characteristic figure provided in an embodiment of the present invention, is obtained according to well logging data
Well logging curve can determine whether drill bit pierces oil reservoir.According to Fig. 4 as can be seen that the well logging curve may include certainly
Right gamma (GR) curve and resistivity curve.Ordinate is the depth on stratum in Fig. 4, and unit is rice (m).Wherein, GR curve is
For natural gamma ray intensity with the change curve of the depth on stratum, the unit of natural gamma ray intensity is API.Staff or
Whether hole trajectory control device can identify the lithology of rock stratum accordingly, judge drill bit in oil reservoir.Resistivity curve is rock stratum
Resistivity with stratum depth change curve, the unit of resistivity is ohm meter (Ω m), which can reflect rock
The oiliness of layer.With reference to Fig. 4 as can be seen that when drill bit drills out oil reservoir, natural gamma ray intensity is sharply increased, elevation amplitude
In 40API or more.Resistivity rapidly reduces, and reduces amplitude more than 5 Ω m, and have decline to become in advance before oil-yielding stratum
Gesture.And after adjustment bit course returns to oil reservoir, natural gamma ray strength reduction reduces amplitude in 40API or more.Resistivity
It rises rapidly, ascensional range is more than 5 Ω m.According to the well logging curvilinear characteristic, that is, it can determine whether that drill bit is to enter the purpose
Oil reservoir has still drilled out purpose oil reservoir, to adjust the probing direction of the drill bit in time.
Step 204, the probing direction that drill bit is adjusted according to the extending direction of the first horizontal segment of the purpose oil reservoir, and at this
It is drilled at the fault plane of the tomography in the first horizontal segment of purpose oil reservoir, obtains the first horizontal segment of the staged horizontal well.
Referring to Fig. 3, when drill bit enters the first horizontal segment of purpose oil reservoir, first water in direction and the purpose oil reservoir is drilled
The extending direction of flat section has certain angle (for example, 90 degree).It, can in order to drill the first horizontal segment of the staged horizontal well
To adjust the probing direction of drill bit, so that the probing direction is consistent with the extending direction of the first horizontal segment of the purpose oil reservoir.It
Afterwards, it can be drilled in the first horizontal segment of purpose oil reservoir according to probing direction adjusted, until being drilled into the tomography
Fault plane at.
Fig. 5 is a kind of drilling method flow chart of the first horizontal segment of staged horizontal well provided in an embodiment of the present invention.
As shown in figure 5, this method may include:
The distance between straight well section and fault plane are determined as the first probing distance by step 2041.
Since the first horizontal segment of the staged horizontal well needs to reach at the fault plane of the tomography, the rank can be just carried out
The probing of the remaining well section of ladder type horizontal well, therefore the distance between the straight well section and the fault plane can be determined as the first brill
Distance is visited, which can refer to the distance between straight well section bottom end and fault plane.
Step 2042, obtained according to seismic data the purpose oil reservoir first horizontal segment stratigraphic dip.
The stratigraphic dip refers to the angle between the layer bottom of the purpose oil reservoir and horizontal plane.Since oil reservoir is with above and below stratum
Rise and fall, and in order to guarantee the staged horizontal well first horizontal segment well track always in the first water of the purpose oil reservoir
In flat section, therefore the stratigraphic dip of the first horizontal segment of the purpose oil reservoir can be obtained according to seismic data, and according to the stratum
Inclination angle determines the ground layer line of the purpose oil reservoir, so that it is determined that the rising or decline situation of the purpose oil reservoir.
Step 2043 drills the first probing distance in the first horizontal segment of the purpose oil reservoir, and in the process of probing
In, according to the variation of the stratigraphic dip of the first horizontal segment of the purpose oil reservoir, adjust the probing direction.
In embodiments of the present invention, it can be adjusted in real time according to the variation of the stratigraphic dip of the first horizontal segment of purpose oil reservoir
The whole probing direction.It can judge drill bit whether also in time according to the well logging data got in drilling process simultaneously
In the first horizontal segment of the purpose oil reservoir, the probing direction of drill bit is subtly adjusted, to ensure to drill obtained staged water
The first horizontal segment of horizontal well is always positioned in the first horizontal segment of the purpose oil reservoir, so as to increase the draining of the purpose oil reservoir
Area improves the horizontal well yield of the staged.
It is exemplary, if detecting the ground layer line decline of the purpose oil reservoir, it can determine that the purpose oil reservoir declines, therefore
The probing direction can be adjusted downwards.If detecting that the ground layer line of the purpose oil reservoir rises, the purpose oil reservoir can be determined
Rise, therefore the probing direction can be adjusted upward.
The opposite position of the fault wall of step 205, the turn-off that the tomography is obtained according to the seismic data and the tomography two sides
It sets.
The turn-off refers to the relative distance in the fault wall of tomography two sides between oil reservoir, which refers to the tomography along the tomography
The sillar that face is subjected to displacement, alternatively referred to as fault block.
In embodiments of the present invention, seismic cross-section can be obtained from the seismic data, and in the seismic cross-section institute
The tomography shown, which is taken up an official post, takes two o'clock, obtains the horizontal distance and vertical range of two points on the seismic profile, utilizes arc tangent
Function, the inclination alpha of the available tomography.Then, the intersection point of same stratum and tomography is obtained, and determines two intersection points places
The propagation time of the seismic wave at place can calculate the depth of two intersection points according to the spread speed of the seismic wave and the propagation time
It spends, and then the difference of the depth of two intersection points is determined as to the vertical displacement of the tomography.It finally can be according to the vertical of the tomography
The distance between turn-off h namely two intersection points of the tomography are calculated using SIN function for the inclination alpha of turn-off and tomography.
Fig. 6 is a kind of schematic diagram at computed tomography inclination angle provided in an embodiment of the present invention.It is exemplary, as shown in fig. 6, can be with
Two points A, B on tomography are arbitrarily taken on seismic cross-section, obtain the horizontal distance BO between A point and B point and this two
Vertical distance AO between point, then according to the formula of tangent function: tan α=AO/BO, the inclination alpha of the available tomography.
Step 206 obtains well logging data.
The well logging data may include the data such as the formation rock physical parameter that measurement obtains during drilling well,
The data can react the lithology and oil-gas possibility that drill bit bores the stratum met.Oil reservoir is the sandstone of oily, if drill bit is crept into
Sandstone, the well logging result obtained according to well logging data can show sandstone, and have oil/gas show, can be true
Surely enter purpose oil reservoir.If drill bit has drilled out sandstone, creep into mud stone, well logging result can then show mud stone, and oil-free
Gas shows, can determine and not enter purpose oil reservoir also or drilled purpose oil reservoir.
Step 207, according to the turn-off, the relative position of the fault wall of the tomography two sides and the well logging data, adjustment
The ladder well section of the staged horizontal well is drilled in the probing direction in the tomography.
Since subsurface picture is intricate, so being first depending on ground when drilling the ladder well section of the staged horizontal well
Shake data obtains the relative position of the fault wall of tomography two sides, adjusts the probing direction of drill bit.Then it is obtained according to earthquake material computation
The turn-off arrived drills first distance along probing direction adjusted, which is the turn-off.The purpose will be drilled into
When the second horizontal segment of oil reservoir, current well logging data is obtained, judges whether drill bit enters at this time according to the well logging and is somebody's turn to do
Second horizontal segment of purpose oil reservoir.According to the well logging data if the second horizontal segment that drill bit does not enter into the purpose oil reservoir
Intense adjustment drills direction.If such as the well logging obtained according to well logging data is the results show that drill bit has drilled the mesh
Oil reservoir the second horizontal segment, the probing direction of drill bit should be adjusted downwards at this time, it is made to smoothly enter the purpose oil reservoir
The second horizontal segment, so as to improve the reservoir-encountered rate of the staged horizontal well.Meanwhile it being obtained in advance using seismic data
The relative position of fault wall and turn-off do not need to adjust the probing direction according to well logging data always, can save probing
Investment when the staged horizontal well.
Wherein, in the relative position according to the fault walls of tomography two sides, when adjusting the probing direction of drill bit, when in tomography
When two fault walls rise relative to the first fault wall, the probing direction can be adjusted upward.When second fault wall is first disconnected relative to this
When disk declines, the probing direction can be adjusted downwards.
Wherein first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall be include the mesh
Oil reservoir the second horizontal segment fault wall.
Fig. 7 is a kind of well track figure of upper staged horizontal well provided in an embodiment of the present invention.Referring to Fig. 7, the tomography
Fault plane on the left of the first fault wall earth's surface height lower than the second fault wall on the right side of the fault plane earth's surface height, namely
The second segment disk rises relative to first fault wall.When having drilled the first horizontal segment of the purpose oil reservoir, due to the second segment
Disk rises relative to first fault wall, then can adjust upward the probing direction, and along the probing direction probing first adjusted
Distance, the second horizontal segment of the purpose oil reservoir that goes directly.
Referring to Fig. 3, the height of the earth's surface of the first fault wall on the left of the fault plane of the tomography is higher than the on the right side of the fault plane
The height of the earth's surface of two fault walls namely second fault wall decline relative to the first fault wall, are drilling the first of the purpose oil reservoir
When horizontal segment, since the second segment disk declines relative to first fault wall, then the probing direction can be adjusted downwards, and along adjustment
First distance, the second horizontal segment of the purpose oil reservoir that goes directly are drilled in probing direction afterwards.
In the rank of the track control method probing staged horizontal well using staged horizontal well provided by the invention
When stair shaft section, if the angle of tomography and horizontal plane is close to 90 degree, the vertical displacement of tomography and the turn-off of the tomography are close at this time
Patibhaga-nimitta etc., and due to the ladder well section of staged horizontal well probing when and it is non-critical make it parallel with the fault plane of tomography,
But the second horizontal segment to purpose oil reservoir is close, so when the ladder well section drilling distance be approximately equal to the vertical disconnected of the tomography
Away from.
Step 208 adjusts the probing direction according to the extending direction of the second horizontal segment of the purpose oil reservoir, in purpose oil
The second horizontal segment of the staged horizontal well is drilled in second horizontal segment of layer.
When completing the probing of ladder well section of the staged horizontal well, drill bit enters the second water of the purpose oil reservoir at this time
Flat section, but the probing direction of drill bit and second horizontal segment of purpose oil reservoir have certain angle (such as 110 degree).In order to drill this
Second horizontal segment of staged horizontal well can first adjust the probing direction of drill bit, so that the probing direction and the purpose oil reservoir
The second horizontal segment extending direction it is consistent.Later, it can be drilled according to probing direction adjusted.
Fig. 8 is a kind of drilling method flow chart of the second horizontal segment of staged horizontal well provided in an embodiment of the present invention.
Referring to Fig. 8, this method may include:
Step 2081, obtained according to seismic data the purpose oil reservoir the second horizontal segment stratigraphic dip.Since oil reservoir is
With stratum dipping and heaving, and in order to guarantee that the well track of the second horizontal segment of the staged horizontal well is oily in the purpose always
In second horizontal segment of layer, therefore the stratigraphic dip of the second horizontal segment of the purpose oil reservoir can be obtained according to seismic data, and
According to the stratigraphic dip, the ground layer line of the purpose oil reservoir is determined, so that it is determined that the rising or decline situation of the purpose oil reservoir.
Step 2082 is drilled in the second horizontal segment of the purpose oil reservoir, and in drilling process, according to the purpose
The variation of the stratigraphic dip of second horizontal segment of oil reservoir adjusts the probing direction.
It in embodiments of the present invention, can be according to the second water of purpose oil reservoir because stratum is not always maintained at horizontality
The variation of the stratigraphic dip of flat section adjusts the probing direction in real time, while according to the well logging got in drilling process
Data judges that drill bit whether also in the second horizontal segment of the purpose oil reservoir, subtly adjusts the probing direction of drill bit, makes in time
The well track of the second horizontal segment for obtaining the staged horizontal well matches with the fluctuating on stratum, to ensure to drill obtained ladder
Second horizontal segment of formula horizontal well is always positioned in the second horizontal segment of the purpose oil reservoir, so as to increase the purpose oil reservoir
Drainage area, and then the horizontal well yield of the staged can be improved.
Optionally, the step of method of staged horizontal well track control provided in an embodiment of the present invention is successive suitable
Sequence can carry out appropriate adjustment, and step according to circumstances can also accordingly be increased and decreased.Such as step 202 can be same with step 205
Step executes, and can also execute before the step 202.The skill that anyone skilled in the art discloses in the application
Within the scope of art, the method that can readily occur in variation should all cover within the protection scope of invention, therefore repeat no more
In conclusion the embodiment of the invention provides a kind of track control method of staged horizontal well, this method
The depth of purpose oil reservoir, the opposite position of the fault wall of the turn-off and tomography two sides of tomography can be obtained in advance according to seismic data
It sets, therefore during probing, it can be directly according to the distance of the data point reuse probing got in advance and the brill of drill bit
Direction is visited, so that drill bit can accurately enter purpose oil reservoir, and enters purpose oil reservoir from the first horizontal segment of purpose oil reservoir
Second horizontal segment will not make drill bit deviate oil reservoir or drill oil reservoir, improve the well track of the staged horizontal well
Precision is controlled, and then improves the Drilling ratio of oil reservoir.
Entire staged horizontal well is completed using the track control method of staged horizontal well provided by the invention
Probing after, staff can descend drain line, exploit to the crude oil in the purpose oil reservoir.It should be noted that be, by
It is different in the first horizontal segment of purpose oil reservoir and the depth of the second horizontal segment, lead to crude oil in the purpose oil reservoir difference,
When two horizontal Joint Productions, interference can be generated.Therefore as shown in fig. 7, needing respectively in lower drain line in the rank
Packer is placed in the place of the first horizontal segment of ladder type horizontal well and the contact of second horizontal segment with the fault plane, realizes two
Respectively exploitation of the horizontal segment to the purpose oil reservoir, the first horizontal segment for avoiding the staged horizontal well and the second horizontal segment are right
Interfering with each other when the purpose oil reservoir is exploited, so as to improve oil recovery efficiency.
The embodiment of the invention provides a kind of hole trajectory control devices of staged horizontal well, and referring to Fig. 9, which can
To include:
First obtains module 901, and for obtaining the development wells of purpose oil reservoir, which is located in tomography.
Second obtains module 902, for obtaining the depth of the purpose oil reservoir according to seismic data.
First probing module 903 drills the staged water for the depth and the development wells according to the purpose oil reservoir
The straight well section of horizontal well makes drill bit enter the purpose oil reservoir.
Second probing module 904, the extending direction for the first horizontal segment according to the purpose oil reservoir adjust the drill bit
Direction is drilled, and at the fault plane for being drilled to the tomography in the first horizontal segment of the purpose oil reservoir, obtains staged level
The first horizontal segment of well.
Third obtains module 905, for obtaining the turn-off of the tomography and breaking for the tomography two sides according to the seismic data
The relative position of disk.
Third drills module 906 and adjusts the probing for the relative position according to the turn-off and the fault wall of the tomography two sides
The ladder well section of the staged horizontal well is drilled in direction in the tomography.
4th probing module 907, the extending direction for the second horizontal segment according to the purpose oil reservoir adjust the probing side
To drilling the second horizontal segment of the staged horizontal well in the second horizontal segment of the purpose oil reservoir.
In conclusion the embodiment of the invention provides a kind of hole trajectory control device of staged horizontal well, the device
The depth of purpose oil reservoir, the opposite position of the fault wall of the turn-off and tomography two sides of tomography can be obtained in advance according to seismic data
It sets, therefore during probing, it can be directly according to the distance of the data point reuse probing got in advance and the brill of drill bit
Direction is visited, so that drill bit can accurately enter purpose oil reservoir, and enters purpose oil reservoir from the first horizontal segment of purpose oil reservoir
Second horizontal segment will not make drill bit deviate oil reservoir or drill oil reservoir, improve the well track of the staged horizontal well
Precision is controlled, and then improves the Drilling ratio of oil reservoir.
Figure 10 is a kind of structural schematic diagram of second probing module provided in an embodiment of the present invention, and referring to Figure 10, this second
Drilling module 904 may include:
First acquisition submodule 9041 is inclined for obtaining the stratum of first horizontal segment of the purpose oil reservoir according to seismic data
Angle.
First determine submodule 9042, for by the distance between the straight well section and the fault plane be determined as the first probing away from
From.
First probing submodule 9043, for being drilled in the first horizontal segment of the purpose oil reservoir, and in drilling process
In, the stratigraphic dip of the first horizontal segment of the purpose oil reservoir got according to first acquisition submodule adjusts the probing side
To.
Optionally, the first probing submodule 9043, can be also used for drilling in the first horizontal segment of the purpose oil reservoir
The first probing distance that the first sub- determining module determines, obtains the first horizontal segment of the staged horizontal well.
Optionally, third probing module 906 can be used for:
When the second fault wall rises relative to the first fault wall, the probing direction is adjusted upward, and drills in the tomography
One distance, the first distance are equal to the turn-off.
When second fault wall declines relative to first fault wall, the probing direction is adjusted downwards, and bore in the tomography
Visit the first distance.
Wherein first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall be include the mesh
Oil reservoir the second horizontal segment fault wall.
Optionally, third probing module 906 can be used for:
Obtain well logging data.
According to the relative position of the fault wall of the tomography two sides and the well logging data, the probing direction is adjusted.
Optionally, the 4th probing module 907 can be used for:
The stratigraphic dip of the second horizontal segment of the purpose oil reservoir is obtained according to seismic data.In the second water of the purpose oil reservoir
It is drilled in flat section, and in drilling process, according to the variation of the stratigraphic dip of the second horizontal segment of the purpose oil reservoir, adjustment
The probing direction.
In conclusion the embodiment of the invention provides a kind of hole trajectory control device of staged horizontal well, the device
The depth of purpose oil reservoir, the opposite position of the fault wall of the turn-off and tomography two sides of tomography can be obtained in advance according to seismic data
It sets, therefore during probing, it can be directly according to the distance of the data point reuse probing got in advance and the brill of drill bit
Direction is visited, so that drill bit can accurately enter purpose oil reservoir, and enters purpose oil reservoir from the first horizontal segment of purpose oil reservoir
Second horizontal segment will not make drill bit deviate oil reservoir or drill oil reservoir, improve the well track of the staged horizontal well
Precision is controlled, and then improves the Drilling ratio of oil reservoir.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description,
The specific work process of each module and each submodule, can refer to corresponding processes in the foregoing method embodiment, no longer superfluous herein
It states.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited in the computer readable storage medium
Instruction is contained, when the computer readable storage medium is run on computers, so that computer executes the above method and implements
The track control method for the staged horizontal well that example provides.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of track control method of staged horizontal well, which is characterized in that the described method includes:
The development wells of purpose oil reservoir are obtained, the purpose oil reservoir is located in tomography；
The depth of the purpose oil reservoir is obtained according to seismic data；
According to the depth and the development wells of the purpose oil reservoir, the straight well section of the staged horizontal well is drilled, makes to bore
Head enters the purpose oil reservoir；
The probing direction of the drill bit is adjusted according to the extending direction of the first horizontal segment of the purpose oil reservoir, and in the purpose
It is drilled in the first horizontal segment of oil reservoir at the fault plane of the tomography, obtains the first horizontal segment of the staged horizontal well；
The relative position of the turn-off of the tomography and the fault wall of the tomography two sides is obtained according to the seismic data；
According to the relative position of the turn-off and the fault wall of the tomography two sides, the probing direction is adjusted, in the tomography
Drill the ladder well section of the staged horizontal well；
The probing direction is adjusted according to the extending direction of the second horizontal segment of the purpose oil reservoir, the of the purpose oil reservoir
The second horizontal segment of the staged horizontal well is drilled in two horizontal segments.
2. the method according to claim 1, wherein described drill in the first horizontal segment of the purpose oil reservoir
To the fault plane of the tomography, the first horizontal segment of the staged horizontal well is obtained, comprising:
The stratigraphic dip of the first horizontal segment of the purpose oil reservoir is obtained according to seismic data；
It is drilled in the first horizontal segment of the purpose oil reservoir, and in drilling process, according to the of the purpose oil reservoir
The variation of the stratigraphic dip of one horizontal segment adjusts the probing direction.
3. the method according to claim 1, wherein the fault wall according to the turn-off and the tomography two sides
Relative position, adjust the probing direction, the ladder well section of the staged horizontal well drilled in the tomography, comprising:
When the second fault wall rises relative to the first fault wall, the probing direction is adjusted upward, and drills in the tomography
One distance, the first distance are equal to the turn-off；
When second fault wall declines relative to first fault wall, the probing direction is adjusted downwards, and in the tomography
The middle probing first distance；
Wherein, first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall is to include
The fault wall of second horizontal segment of the purpose oil reservoir.
4. the method according to claim 1, wherein described drill in the first horizontal segment of the purpose oil reservoir
To the fault plane of the tomography, the first horizontal segment of the staged horizontal well is obtained, comprising:
The distance between the straight well section and the fault plane are determined as the first probing distance；
The first probing distance is drilled in the first horizontal segment of the purpose oil reservoir, obtains the of the staged horizontal well
One horizontal segment.
5. method according to any one of claims 1 to 4, which is characterized in that described according to the turn-off and the tomography two
The relative position of the fault wall of side adjusts the probing direction, comprising:
Obtain well logging data；
According to the relative position of the fault wall of the tomography two sides and the well logging data, the probing direction is adjusted.
6. method according to any one of claims 1 to 4, which is characterized in that second level in the purpose oil reservoir
The second horizontal segment of the staged horizontal well is drilled in section, comprising:
The stratigraphic dip of the second horizontal segment of the purpose oil reservoir is obtained according to seismic data；
It is drilled in the second horizontal segment of the purpose oil reservoir, and in drilling process, according to the of the purpose oil reservoir
The variation of the stratigraphic dip of two horizontal segments adjusts the probing direction.
7. a kind of hole trajectory control device of staged horizontal well, which is characterized in that described device includes:
First obtains module, and for obtaining the development wells of purpose oil reservoir, the purpose oil reservoir is located in tomography；
Second obtains module, for obtaining the depth of the purpose oil reservoir according to seismic data；
First probing module drills the staged water for the depth and the development wells according to the purpose oil reservoir
The straight well section of horizontal well makes drill bit enter the purpose oil reservoir；
Second probing module, the probing of the drill bit is adjusted for the extending direction according to the first horizontal segment of the purpose oil reservoir
Direction, and be drilled at the fault plane of the tomography in the first horizontal segment of the purpose oil reservoir, obtain the staged water
The first horizontal segment of horizontal well；
Third obtains module, for obtaining the turn-off of the tomography and breaking for the tomography two sides according to the seismic data
The relative position of disk；
Third drills module and adjusts the probing for the relative position according to the turn-off and the fault wall of the tomography two sides
The ladder well section of the staged horizontal well is drilled in direction in the tomography；
4th probing module, the extending direction for the second horizontal segment according to the purpose oil reservoir adjust the probing direction,
The second horizontal segment of the staged horizontal well is drilled in the second horizontal segment of the purpose oil reservoir.
8. device according to claim 7, which is characterized in that the second probing module, comprising:
First acquisition submodule, the stratigraphic dip of the first horizontal segment for obtaining the purpose oil reservoir according to seismic data；
First probing submodule, for being drilled in the first horizontal segment of the purpose oil reservoir, and in drilling process, root
The stratigraphic dip of the first horizontal segment of the purpose oil reservoir got according to first acquisition submodule adjusts the probing side
To.
9. device according to claim 7, which is characterized in that the third drills module, is used for:
When the second fault wall rises relative to the first fault wall, the probing direction is adjusted upward, and drills in the tomography
One distance, the first distance are equal to the turn-off；
When second fault wall declines relative to first fault wall, the probing direction is adjusted downwards, and in the tomography
The middle probing first distance；
Wherein, first fault wall be include the purpose oil reservoir first horizontal segment fault wall, second fault wall is to include
The fault wall of second horizontal segment of the purpose oil reservoir.
10. device according to claim 7, which is characterized in that the second probing module, comprising:
First determines submodule, for the distance between the straight well section and the fault plane to be determined as the first probing distance；
First probing submodule determines that submodule determines for drilling described first in the first horizontal segment of the purpose oil reservoir
It is described first probing distance, obtain the first horizontal segment of the staged horizontal well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122140.0A CN109184560B (en) | 2018-09-26 | 2018-09-26 | Method and device for controlling well track of stepped horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811122140.0A CN109184560B (en) | 2018-09-26 | 2018-09-26 | Method and device for controlling well track of stepped horizontal well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184560A true CN109184560A (en) | 2019-01-11 |
| CN109184560B CN109184560B (en) | 2020-07-10 |
Family
ID=64906294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811122140.0A Active CN109184560B (en) | 2018-09-26 | 2018-09-26 | Method and device for controlling well track of stepped horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109184560B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653470A (en) * | 2021-10-21 | 2021-11-16 | 西南石油大学 | Coal bed in-situ hydrogen production and coal bed gas development integrated method and structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199109A (en) * | 2014-09-18 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Method and equipment for determining apparent dip angles of target layers of drill wells |
| CN104481400A (en) * | 2014-12-10 | 2015-04-01 | 中国石油化工股份有限公司 | Three-dimensional (3D) horizontal well borehole track controlling method |
| CN105298388A (en) * | 2015-10-30 | 2016-02-03 | 中国石油天然气集团公司 | Horizontal well drilling path guiding method and device |
| CN106204725A (en) * | 2016-07-05 | 2016-12-07 | 中国石油天然气股份有限公司 | A kind of horizontal well path bearing calibration and device |
| US20180038204A1 (en) * | 2016-08-02 | 2018-02-08 | Saudi Arabian Oil Company | Systems and Methods for Developing Hydrocarbon Reservoirs |
| CN207686692U (en) * | 2017-11-16 | 2018-08-03 | 中国石油天然气股份有限公司 | Horizontal well separate injection tubing string |
-
2018
- 2018-09-26 CN CN201811122140.0A patent/CN109184560B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104199109A (en) * | 2014-09-18 | 2014-12-10 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | Method and equipment for determining apparent dip angles of target layers of drill wells |
| CN104481400A (en) * | 2014-12-10 | 2015-04-01 | 中国石油化工股份有限公司 | Three-dimensional (3D) horizontal well borehole track controlling method |
| CN105298388A (en) * | 2015-10-30 | 2016-02-03 | 中国石油天然气集团公司 | Horizontal well drilling path guiding method and device |
| CN106204725A (en) * | 2016-07-05 | 2016-12-07 | 中国石油天然气股份有限公司 | A kind of horizontal well path bearing calibration and device |
| US20180038204A1 (en) * | 2016-08-02 | 2018-02-08 | Saudi Arabian Oil Company | Systems and Methods for Developing Hydrocarbon Reservoirs |
| CN207686692U (en) * | 2017-11-16 | 2018-08-03 | 中国石油天然气股份有限公司 | Horizontal well separate injection tubing string |
Non-Patent Citations (2)
| Title |
|---|
| 周新荣: "平行断层面定向井钻井设计技术探讨", 《采油工程》 * |
| 徐云龙: "胜利油田第一口跨断块阶梯水平井设计与施工", 《西部钻探工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653470A (en) * | 2021-10-21 | 2021-11-16 | 西南石油大学 | Coal bed in-situ hydrogen production and coal bed gas development integrated method and structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109184560B (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7546209B2 (en) | Formation dip geo-steering method | |
| US8762118B2 (en) | Modeling hydraulic fractures | |
| CA2915625C (en) | Method of calibrating fracture geometry to microseismic events | |
| US7359844B2 (en) | Real time earth model for collaborative geosteering | |
| US8527248B2 (en) | System and method for performing an adaptive drilling operation | |
| CN106285476A (en) | A kind of horizontal drilling Real-time Seismic geological syntheses guidance method | |
| US20150370934A1 (en) | Completion design based on logging while drilling (lwd) data | |
| CN109138837A (en) | Reservoir geology guidance method | |
| US20210262340A1 (en) | Incremental downhole depth methods and systems | |
| WO2021195171A1 (en) | Wellbore quality improvement | |
| EP3114318A1 (en) | Formation skin evaluation | |
| US10544666B1 (en) | Formation dip geo-steering method | |
| CN109184560A (en) | The track control method and device of staged horizontal well | |
| CN104251135B (en) | Highly-deviated well space in-place method | |
| US8378684B2 (en) | Method for determining fluid type in reservoir | |
| CN108952569A (en) | A kind of bottom water layered pool horizontal well probing method for controlling trajectory | |
| WO2017173299A1 (en) | Method for improving survey measurement density along a borehole | |
| US10316638B1 (en) | Formation dip geo-steering method | |
| US20190323324A1 (en) | Partitioning polymer into phases of a microemulsion system | |
| Carter et al. | An integrated approach to horizontal well design and planning in Widuri field, offshore southeast Sumatra, Indonesia | |
| US11530609B2 (en) | Well placing using bayesian network expert system | |
| Lliteras Popoca | A comparative study of fishbones technology and hydraulic fractures in a tight carbonate reservoir using EDFM: field case application | |
| CN116084838A (en) | Method for determining horizontal section track of horizontal well of ground coal seam roof | |
| WO2023192611A1 (en) | Automated reservoir navigation | |
| AU748012B2 (en) | Method of obtaining improved geophysical information about earth formations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |