CN112483064B - Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium - Google Patents
Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium Download PDFInfo
- Publication number
- CN112483064B CN112483064B CN201910863478.XA CN201910863478A CN112483064B CN 112483064 B CN112483064 B CN 112483064B CN 201910863478 A CN201910863478 A CN 201910863478A CN 112483064 B CN112483064 B CN 112483064B
- Authority
- CN
- China
- Prior art keywords
- location
- target reservoir
- condensate
- type
- reservoir
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000003860 storage Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 72
- 238000012545 processing Methods 0.000 claims description 21
- 235000019994 cava Nutrition 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000012417 linear regression Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 26
- 230000008901 benefit Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 87
- 238000010586 diagram Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241001146209 Curio rowleyanus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/30—Specific pattern of wells, e.g. optimising the spacing of wells
- E21B43/305—Specific pattern of wells, e.g. optimising the spacing of wells comprising at least one inclined or horizontal well
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Forestry; Mining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Business, Economics & Management (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Primary Health Care (AREA)
- Animal Husbandry (AREA)
- Economics (AREA)
- General Health & Medical Sciences (AREA)
- Human Resources & Organizations (AREA)
- Marketing (AREA)
- Marine Sciences & Fisheries (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Health & Medical Sciences (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Agronomy & Crop Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The embodiment of the application provides a method, a device, equipment and a storage medium for determining a well arrangement mode of a condensate gas reservoir. The method includes obtaining a type of a target reservoir; when the type of the target reservoir body is a crack hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well; when the type of the target reservoir body is a cave type, first pressure data of the target reservoir body are obtained, first condensate oil content corresponding to the first pressure data is determined, and when the content of the first condensate oil exceeds a preset threshold value, second prompt information is output and used for indicating that the drilling type of the target reservoir body is an inclined shaft. According to the method for determining the well arrangement mode of the condensate gas reservoir, provided by the embodiment of the application, different drilling modes are prompted to be adopted according to the type of the target reservoir and the content of condensate oil, and the recovery rate of the condensate oil of the condensate gas reservoir is improved under the condition that the economic benefit is guaranteed.
Description
Technical Field
The application relates to the technical field of oil and gas development, in particular to a method, a device, equipment and a storage medium for improving the recovery ratio of a condensate gas reservoir.
Background
The fracture-cavity type condensate gas reservoir is a condensate gas reservoir which takes a karst cave, a corrosion cave and a crack as main reservoirs. The fracture-cavity condensate gas reservoir has the characteristics of large spatial scale change, strong spatial heterogeneity and the like of a plurality of reservoirs in the same block, so that the gas reservoir has high exploitation difficulty and low condensate oil recovery rate.
The exploitation modes of the condensate gas reservoir mainly include pressure maintaining exploitation and exhaustion type exploitation. Each reservoir body in the fracture-cavity type condensate gas reservoir is relatively independent, and the condensate oil content in a considerable part of the reservoir bodies is relatively low and is at the economic edge of pressure development, so that the condensate oil is usually produced by adopting a depletion type production mode in the prior art; in practical application, because the process of vertical well drilling is simple and the construction cost is low, the vertical well drilling method is widely applied to failure type exploitation of fracture-cavity condensate gas reservoirs.
However, the recovery rate of condensate from vertical wells is low; on the one hand, a vertical well vertically penetrates through a reservoir, and the well section passing through the reservoir is short, so that the recovery rate of condensate is low; on the other hand, in depletion type exploitation, when the formation pressure is reduced to be below the dew point pressure, the phenomenon of reverse condensation can occur, at the moment, condensate oil is separated out and is retained in a reservoir body under the influence of gravity, the formation pressure drop of vertical well drilling is fast, a large amount of condensate oil is collected in the reservoir body after being separated out, and the recovery ratio of the condensate oil is further reduced.
Disclosure of Invention
The application provides a method, a device, equipment and a storage medium for determining a well arrangement mode of a condensate gas reservoir, which are used for improving the well arrangement mode of the condensate gas reservoir and further improving the recovery ratio of condensate oil of the condensate gas reservoir under the condition of ensuring economic benefits.
In a first aspect, an embodiment of the present invention provides a method for determining a well placement mode of a condensate gas reservoir, including:
receiving seismic echo data of a condensate gas reservoir sent by a detector, and performing inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir body in the condensate gas reservoir;
determining a type of the target reservoir from the seismic reflection signatures; wherein the types comprise a crack hole type and a cave type;
when the type of the target reservoir body is a fracture hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well;
when the type of the target reservoir body is a cave type, first pressure data of the target reservoir body is obtained, first condensate content corresponding to the first pressure data is determined according to a corresponding relation between the condensate content and the pressure data of a block where the target reservoir body is located, when the condensate content of the first condensate content exceeds a preset threshold value, second prompt information is output, and the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft.
In a second aspect, an embodiment of the present invention provides a well arrangement mode determining apparatus for a condensate gas reservoir, including:
the acquisition module is used for receiving seismic echo data of the condensate gas reservoir sent by the detector and carrying out inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir body in the condensate gas reservoir;
a type determination module for determining a type of the target reservoir from the seismic reflection signatures; wherein the types comprise a fracture hole type and a cave type;
the first output module is used for outputting first prompt information when the type of the target reservoir body is a crack hole type, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well;
the second output module is used for acquiring first pressure data of the target reservoir body when the type of the target reservoir body is a cave type, determining the content of the first condensate corresponding to the first pressure data according to the corresponding relation between the condensate content and the pressure data of the block where the target reservoir body is located, and outputting second prompt information when the content of the first condensate exceeds a preset threshold, wherein the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft.
In a third aspect, an embodiment of the present invention provides a well placement determination apparatus for a condensate gas reservoir, including a memory and a processor;
a memory: for storing the processor-executable instructions;
wherein the processor is configured to: the executable instructions are executed to implement the method of any one of the first aspects.
In a fourth aspect, the present invention provides a computer-readable storage medium, in which computer-executable instructions are stored, and when executed by a processor, the computer-executable instructions are configured to implement the method according to any one of the above first aspects.
The method, the device, the equipment and the storage medium for determining the well arrangement mode of the condensate gas reservoir provided by the embodiment of the invention are used for receiving seismic echo data of the condensate gas reservoir sent by a detector and carrying out inversion processing on the seismic echo data to obtain the seismic reflection characteristics of a target reservoir body in the condensate gas reservoir; determining the type of the target reservoir body according to the seismic reflection characteristics; when the type of the target reservoir body is a fracture hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well; when the type of the target reservoir body is a cave type, first pressure data of the target reservoir body is obtained, first condensate content corresponding to the first pressure data is determined according to a corresponding relation between the condensate content and the pressure data of a block where the target reservoir body is located, when the condensate content of the first condensate content exceeds a preset threshold value, second prompt information is output, and the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft. According to the method for determining the well arrangement mode of the condensate gas reservoir, different well drilling modes are prompted to be adopted according to the type of the target reservoir and the content of condensate oil, and the recovery ratio of the condensate oil of the condensate gas reservoir is improved under the condition that the economic benefit is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic flow chart of a method for determining a well placement mode of a condensate gas reservoir according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of seismic reflection signatures of a reservoir provided by an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for determining a pattern of a condensate gas reservoir according to another embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for determining a pattern of a well placement for a condensate gas reservoir according to yet another embodiment of the present invention;
fig. 5 is a functional block diagram of a well placement determination apparatus for a condensate gas reservoir according to an embodiment of the present invention;
FIG. 6 is a functional block diagram of a well placement determination apparatus for a condensate gas reservoir according to another embodiment of the present invention;
fig. 7 is a schematic diagram of a hardware configuration of a well placement determination apparatus for a condensate gas reservoir according to an embodiment of the present invention.
Specific embodiments of the present disclosure have been shown by way of example in the drawings and will be described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.
Furthermore, references to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The fracture-vug type condensate gas reservoir is also called a carbonate rock condensate gas reservoir, is a special gas reservoir taking a karst cave, a corrosion cavity and a crack as main reservoir spaces, and is mainly distributed in a Tarim basin and a Bohai Bay region. The gas reservoir type reservoir usually has the characteristics of large change of reservoir space scale, strong spatial heterogeneity and the like; in terms of fluid properties, the condensate oil content of different blocks and different slot-hole units in the same block are greatly different; the complex reservoir characteristics and fluid properties lead to greater development difficulty and lower recovery rates of condensate and natural gas for such gas reservoirs.
Most of the production wells of the fracture-cavity condensate gas reservoir are not communicated, so that a reasonable injection and production well network cannot be established, and because the scale of the fracture-cavity unit of the condensate gas reservoir is small, the gas injection throughout investment return rate is low, so that pressure-maintaining production cannot be adopted, and the condensate gas reservoir is subjected to depletion production mainly by virtue of natural energy in the prior art. In practical application, because the process of vertical well drilling is simple and the construction cost is low, the vertical well drilling method is widely applied to failure type exploitation of fracture-cavity condensate gas reservoirs.
However, the recovery rate of condensate from vertical wells is low; on the one hand, a vertical well vertically penetrates through a reservoir, and the well section passing through the reservoir is short, so that the recovery rate of condensate is low; on the other hand, in depletion type exploitation, when the formation pressure is reduced to be below the dew point pressure, the phenomenon of reverse condensation can occur, at the moment, the condensate oil is separated out and is retained in the reservoir body under the influence of gravity, the formation pressure drop of the vertical well drilling is fast, a large amount of condensate oil is collected in the reservoir body after being separated out, and the recovery ratio of the condensate oil is further reduced.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for determining a well placement mode of a condensate gas reservoir according to an embodiment of the present invention. As shown in fig. 1, the method includes:
s101, receiving seismic echo data of the condensate gas reservoir sent by the detector, and performing inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir body in the condensate gas reservoir.
When the pore space which can be used as a space for storing oil and gas is not distributed in a layer form and an irregular combination is formed in the layer and between the layers, it is called a reservoir. The reservoir bodies are the main production intervals of the oil-gas field, and the accurate identification of the types of the reservoir bodies has important significance for improving the drilling success rate and the oil reservoir recovery rate.
Since seismic wave energy undergoes significant energy attenuation in various carbonate reservoirs, different reservoirs can exhibit different morphologies directly from the seismic profile. Alternatively, the seismic reflection characteristic may be specifically a seismic reflection profile.
Optionally, the condensate gas reservoir is an ultra-deep complex carbonate condensate gas reservoir.
S102, determining the type of the target reservoir according to the seismic reflection characteristics; wherein the types include a fracture-hole type and a cave type.
FIG. 2 is a schematic diagram of seismic reflection signatures for a reservoir, as provided by an embodiment of the present invention, with FIG. 2 (a) showing a single "beaded" reflection, FIG. 2 (b) showing a combined "beaded" reflection, and FIG. 2 (c) showing a "non-beaded" reflection.
Optionally, for each reservoir's seismic reflection signature, determining whether the reservoir's seismic reflection signature contains beaded reflection signatures. If so, determining that the reservoir body is a cavernous reservoir body, and if not, determining that the reservoir body is a fractured-cavernous reservoir body. In practical application, a target reservoir is selected firstly, and then judgment is carried out according to the seismic reflection characteristics of the target reservoir.
In practical application, the difference between the development characteristics of the fracture-vug type reservoir body and the development characteristics of the cave type reservoir body is large, the internal space of the fracture-vug type reservoir body is small, the flow resistance of oil, gas and water in the reservoir body is large, the recovery ratio cannot change greatly along with the reduction of gravity, and the failure exploitation is in a low-yield and stable-yield state; the space of the cave-type reservoir body and the seepage channel are large-gap and large holes, the capillary pressure can be ignored, and the oil, gas and water distribution plays a leading role by gravity. In depletion development, the retrograde condensate accumulates in a relatively low location in the reservoir and the recovery of the condensate decreases rapidly as the formation pressure decreases. Optionally, different drilling types can be selected according to the types of different reservoirs, specifically, when the target reservoir type is a fracture-hole type, the flow speed of the condensate oil is slow, the yield reduction speed in the exploitation process is slow, and at the moment, a horizontal well is adopted, so that the recovery ratio of the condensate oil can be greatly improved; when the type of the target reservoir is a cave type, the flow speed of condensate is high, the yield is reduced quickly, if a horizontal well is adopted, the cost is high, the condensate content of the target reservoir is further obtained, when the condensate content exceeds a preset threshold value, namely the condensate content is high, an inclined well is adopted, and the following specific limitation and description are given through the step S103 and the step S104.
S103, when the type of the target reservoir body is a fracture and hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well.
Horizontal wells are drilled vertically or inclined to the oil reservoir, and the wellbore is rotated close to horizontal to remain parallel to the oil reservoir, allowing long intervals of drilling to be drilled in the reservoir until completion. The oil well penetrates over one hundred meters or more and two thousand or more meters of the oil layer well section, so that the oil well is beneficial to more oil extraction, the flow resistance of fluid in the oil layer flowing into the well is reduced, and the production capacity is greatly improved compared with that of a common straight well.
When the fracture-hole type reservoir body is in failure exploitation, the fracture-hole type reservoir body is in a low-yield and stable-yield state for a long time, and the horizontal well is selected for exploitation of the reservoir body, so that the recovery ratio of condensate oil of the reservoir body can be greatly improved.
S104, when the type of the target reservoir body is a cave type, acquiring first pressure data of the target reservoir body, determining the first condensate content corresponding to the first pressure data according to the corresponding relation between the condensate content and the pressure data of the block where the target reservoir body is located, and outputting second prompt information when the first condensate content exceeds a preset threshold value, wherein the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft.
It is known that condensate from cavernous reservoirs is collected at relatively low locations in the reservoir, and the recovery rate of the condensate decreases rapidly with the decrease in formation pressure, and the cost is high if horizontal well mining is employed. It is known that condensate of cavernous reservoirs is accumulated at relatively low positions of the reservoirs, so that when the condensate content of a target reservoir is higher or exceeds a preset threshold, inclined wells can be adopted for drilling development, compared with straight wells, the inclined wells are longer in the well section of an oil layer, and drilling positions of the inclined wells can be set at relatively low positions of the reservoirs, so that the recovery ratio of the condensate is improved.
Therefore, when the target reservoir is a cavernous reservoir, the first condensate content of the target reservoir can be further obtained, and the drilling type of the target reservoir is determined according to the condensate content of the target reservoir.
The regional unit of a fracture-cavity condensate gas reservoir can be generally divided into a gas field, a block and a reservoir body, wherein the gas field is composed of a plurality of blocks, and the block comprises a plurality of reservoir bodies. Alternatively, the first condensate content in the target reservoir may be determined according to the condensate content of the developed reservoir in the block where the target reservoir is located.
In one possible embodiment, the condensate content of a plurality of reservoirs developed in the block where the target reservoir is located is counted, an arithmetic mean of the reservoirs is obtained, and the first condensate content of the target reservoir is determined according to the arithmetic mean. Alternatively, the developed reservoir is a development well.
It is known that, according to the national standard GB/T26979-2011, when the condensate content is more than 600g/m 3 When the condensate content is 250-600 g/m, the gas reservoir is a gas reservoir with ultrahigh condensate content 3 In the range of high condensate content, when the condensate content is 100-250 g/m 3 In the range, the condensate oil-gas reservoir is a medium-content condensate oil-gas reservoir, and when the condensate oil content is less than 100g/m & lt 3 & gt, the condensate oil-gas reservoir is a low-content condensate oil-gas reservoir. Alternatively, the preset threshold may be determined according to the high, medium and low condensate content in the national standard. Specifically, the preset threshold device is set to 250g/m 3 Therefore, when the first condensate content of the target reservoir exceeds the preset threshold value, the target reservoir is known to be a high-condensate reservoir.
Due to pressure variations, the hydrocarbon gas in the condensate reservoir may vary between liquid and gaseous states, i.e. the condensate content has a correlation with the pressure inside the reservoir, and in a plurality of reservoirs within the same block the condensate content has a similar correlation with pressure. In another possible implementation manner, a corresponding relationship between the condensate content and the pressure data of the block where the target reservoir is located is obtained, first pressure data of the target reservoir is obtained, and the condensate content corresponding to the first pressure data is determined as the first condensate content of the target reservoir.
Optionally, the pattern of the condensate reservoir also includes the location of the drilling encounter with the reservoir. In order to improve the recovery efficiency of condensate, the drilling position of the target reservoir can be set. Optionally, the drilling encounter location of the well relative to the target reservoir is determined based on the well type and condensate content of the target reservoir.
Specifically, a first location and a second location on the target reservoir are determined based on the seismic reflection characteristics, wherein the first location is the location on the target reservoir that is closest to the earth's surface and the second location is the location on the target reservoir that is farthest from the earth's surface.
When the target reservoir body is known to be in a fracture cave type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well. Optionally, the first hint information is further used to indicate that the encounter location of the target reservoir is between a third location and a fourth location, wherein the third location is a location on the target reservoir where the distance between the target reservoir and the second location is one third of the distance between the first location and the second location, and the fourth location is a location on the target reservoir where the distance between the target reservoir and the first location is one third of the distance between the first location and the second location. Namely, when the target reservoir body is in a crack cave type, the drilling type adopts a horizontal well, and the drilling position of the horizontal well and the target reservoir body is positioned in the middle of the target reservoir body.
And when the target reservoir is known to be a cavern type and the first condensate content of the target reservoir exceeds a preset threshold value, outputting second prompt information, and optionally, indicating that the distance between the drilling position and the second position of the target reservoir is less than one third of the distance between the first position and the second position. That is, at this time, the drilling encounter location of the deviated well with the target reservoir is located at the bottom of the target reservoir.
In practical application, after the formation pressure is lower than the dew point pressure, condensate oil is separated out under the influence of gravity and then is gathered at the bottom of a reservoir body, and the condensate oil gathered at the bottom of the reservoir body can be greatly improved when drilling in the middle and lower parts of the reservoir body
The method for determining the well arrangement mode of the condensate gas reservoir provided by the embodiment of the invention comprises the steps of receiving seismic echo data of the condensate gas reservoir sent by a detector, and carrying out inversion processing on the seismic echo data to obtain the seismic reflection characteristics of a target reservoir body in the condensate gas reservoir; determining a type of the target reservoir from the seismic reflection signatures; when the type of the target reservoir body is a crack hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well; when the type of the target reservoir body is a cave type, first pressure data of the target reservoir body are obtained, first condensate oil content corresponding to the first pressure data is determined according to a corresponding relation between the condensate oil content of a block where the target reservoir body is located and the pressure data, and when the first condensate oil content exceeds a preset threshold value, second prompt information is output and used for indicating that the drilling type of the target reservoir body is an inclined shaft. According to the method for determining the well arrangement mode of the condensate gas reservoir, provided by the embodiment of the application, different drilling modes are prompted to be adopted according to the type of the target reservoir and the content of condensate oil, and the recovery rate of the condensate oil of the condensate gas reservoir is improved under the condition that the economic benefit is guaranteed.
Fig. 3 is a schematic flow chart of a method for determining a well placement of a condensate gas reservoir according to another embodiment of the present invention. Fig. 3 is a detailed illustration of how the correspondence between condensate content and pressure data is determined on the basis of the embodiment described in fig. 1, which correspondence may be performed before step 101 or step 102:
prior to said determining the type of the target reservoir from the seismic reflection signatures, the method further comprises:
s301, receiving condensate oil content and pressure data of a plurality of detection wells sent by a fluid high-temperature high-pressure measuring instrument; wherein the plurality of sonde wells are each located within the block in which the target reservoir is located.
S302, performing linear regression fitting processing on the condensate content and the pressure data of the plurality of detection wells to obtain the corresponding relation between the condensate content and the pressure data of the block where the target reservoir body is located.
It is known that the condensate content and the pressure in a plurality of reservoirs in the same block have similar correlation, the corresponding relation between the condensate content and the pressure data of the block where the target reservoir is located is obtained by performing linear regression fitting processing on the condensate content and the pressure data of a plurality of detection wells, then the condensate content corresponding to the pressure data can be determined according to the pressure data of the target reservoir, and the condensate content is determined as the first condensate content of the target reservoir.
In practical application, when the condensate content of the cavernous reservoir is low, the drilling position of the cavernous reservoir is changed, and the effect of improving the condensate recovery ratio of the cavernous reservoir is not great, so that the mining economic cost becomes a factor which needs to be considered in determining a well distribution mode. Alternatively, when the condensate content of the cavernous reservoir is low, for example, below a preset threshold, the drilling type and the drilling location of the cavernous reservoir may be determined according to the number of caverns contained in the cavernous reservoir. This will be explained in detail by the embodiment shown in fig. 4.
Fig. 4 is a schematic flow chart of a method for determining a well placement mode of a condensate gas reservoir according to another embodiment of the present invention. FIG. 4 is a diagram illustrating the determination of increased cavern count when the target reservoir is a cavern type based on the embodiments described above, such as the embodiment illustrated in FIG. 1. As illustrated in fig. 4:
after determining the first condensate content corresponding to the first pressure data in step S104, the method further comprises:
s401, when the content of the first condensate oil is lower than the preset threshold value, determining the number of caves contained in the target reservoir body according to the seismic reflection characteristics of the target reservoir body.
Determining the number of caves contained in the cavernous type reservoir according to the number of 'beads' contained in the seismic reflection characteristics of the target reservoir, wherein when the seismic reflection profile of the reservoir is in a single 'bead' shape, the reservoir only contains one cave and is a single-storage cavernous type reservoir; when the seismic reflection profile of the reservoir is in a combined 'string of beads' shape, the reservoir comprises a plurality of caves and is a multi-cave type reservoir.
S402, if the number of the caves is one, outputting third prompt information; wherein the third prompt is to indicate that the drilling type of the target reservoir is a vertical well.
S403, if the number of the caves is multiple, outputting fourth prompt information; wherein the fourth cue information is for indicating that the drilling type of the target reservoir is deviated and that the distance between the drilling location of the target reservoir and the first location is less than one third of the distance between the first location and the second location.
When the number of the caves of the cave type reservoir body is one, outputting third prompt information; and the third prompt information is used for indicating that the drilling type of the target reservoir body is a vertical well, and the vertical well is adopted to directly drill the top or the upper part of the target reservoir body, wherein the upper part is the height position which is one third close to the highest point.
When the cavern of the cavernous reservoir is plural, the drilling type is a slant well in order to ensure that the drilling can pass through all the caverns, and it should be understood that the slant of the slant well here may be different from that of the embodiment of fig. 1. And in order to save cost, the distance between the drilling position of the target reservoir body and the first position is less than one third of the distance between the first position and the second position, namely the drilling position of the inclined shaft relative to the target reservoir body is positioned at the upper part of the target reservoir body and is close to the highest point one third, and the length of the well section of the inclined shaft is saved.
The well arrangement mode determining method of the condensate gas reservoir provided by the embodiment of the invention mainly considers the economy of the well arrangement mode aiming at the cavernous type reservoir with lower condensate oil content, adopts a vertical well for the single-storage cavernous type reservoir, and saves the cost because the drilling position is positioned at the top of the target reservoir. For the multi-storage-cave type reservoir body, in order to ensure that drilling can penetrate through all caves, inclined shafts are adopted, and the drilling meeting position is located at the upper part of the target reservoir body.
Based on the method for improving the recovery ratio of the condensate of the fracture-cavity condensate gas reservoir provided by the embodiment, the embodiment of the invention further provides an embodiment of a device for realizing the embodiment of the method.
Fig. 5 is a functional block diagram of a well placement determination apparatus for a condensate gas reservoir according to an embodiment of the present invention. As shown in fig. 5, the well placement determination apparatus 500 for a condensate gas reservoir includes an obtaining module 510, a determining module 520, a first output module 530, and a second output module 540, wherein:
the acquiring module 510 is configured to receive seismic echo data of a condensate gas reservoir sent by a detector, and perform inversion processing on the seismic echo data to obtain a seismic reflection characteristic of a target reservoir in the condensate gas reservoir;
a type determination module 520 for determining the type of the target reservoir from the seismic reflection signatures; wherein the types comprise a crack hole type and a cave type;
a first output module 530, configured to output first prompt information when the type of the target reservoir is a fracture-hole type, where the first prompt information is used to indicate that the drilling type of the target reservoir is a horizontal well;
the second output module 540 is configured to, when the type of the target reservoir is a cave type, obtain first pressure data of the target reservoir, determine a first condensate content corresponding to the first pressure data according to a correspondence relationship between a condensate content and pressure data of a block in which the target reservoir is located, and output second prompt information when the first condensate content exceeds a preset threshold, where the second prompt information is used to indicate that the drilling type of the target reservoir is an inclined shaft.
Optionally, the determining module 520 is further configured to determine whether the seismic reflection feature includes a beaded reflection feature; if so, determining that the target reservoir is a cavernous reservoir, and if not, determining that the target reservoir is a fractured cavernous reservoir.
The well arrangement mode determining device for the condensate gas reservoir, provided by the embodiment of the invention, comprises an acquisition module, a data processing module and a data processing module, wherein the acquisition module is used for receiving seismic echo data of the condensate gas reservoir sent by a detector and carrying out inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir body in the condensate gas reservoir; the type determining module determines the type of the target reservoir body according to the seismic reflection characteristics; the first output module outputs first prompt information when the type of the target reservoir body is a fracture-hole type, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well; the second output module acquires first pressure data of the target reservoir body when the type of the target reservoir body is a cave type, determines first condensate content corresponding to the first pressure data according to a corresponding relation between the condensate content and the pressure data of a block where the target reservoir body is located, and outputs second prompt information when the condensate content exceeds a preset threshold value, wherein the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft. The well arrangement mode determining device for the condensate gas reservoir provided by the embodiment of the application prompts that different drilling modes are adopted according to the type of the target reservoir and the content of condensate oil, and improves the recovery ratio of the condensate oil of the condensate gas reservoir under the condition of ensuring the economic benefit.
Fig. 6 is a functional block diagram of a well placement determination apparatus for a condensate gas reservoir according to another embodiment of the present invention. As shown in fig. 6, the well placement determination apparatus 500 for a condensate gas reservoir further includes a fitting module 550, a position determination module 560, and a third output module 570.
The fitting module 550 is configured to receive condensate content and pressure data of the multiple detection wells sent by the fluid high-temperature and high-pressure measurement instrument; wherein the plurality of probe wells are each located within the block in which the target reservoir is located; and performing linear regression fitting processing on the condensate content and the pressure data of the plurality of detection wells to obtain the corresponding relation between the condensate content and the pressure data of the block where the target reservoir body is located.
A location determining module 560 for determining a first location and a second location on the target reservoir based on the seismic reflection characteristics, wherein the first location is a location on the target reservoir that is closest to the earth's surface and the second location is a location on the target reservoir that is farthest from the earth's surface.
Optionally, the first hint information is further used to indicate that the encounter location of the target reservoir is between a third location and a fourth location, wherein the third location is a location on the target reservoir where the distance between the target reservoir and the second location is one third of the distance between the first location and the second location, and the fourth location is a location on the target reservoir where the distance between the target reservoir and the first location is one third of the distance between the first location and the second location.
Optionally, the second cue information is further for indicating that a distance between the encounter location of the target reservoir and the second location is less than one third of a distance between the first location and the second location.
Optionally, the third output module 570 is configured to determine, according to the seismic reflection characteristics of the target reservoir, the number of caverns included in the target reservoir when the content of the first condensate is lower than the preset threshold; if the number of the holes is one, outputting third prompt information; wherein the third prompt is to indicate that the drilling type of the target reservoir is a vertical well; if the number of the caves is multiple, outputting fourth prompt information; wherein the fourth cue information is for indicating that the drilling type of the target reservoir is deviated and that the distance between the drilling location of the target reservoir and the first location is less than one third of the distance between the first location and the second location.
According to the well arrangement mode determining device for the condensate gas reservoir, provided by the embodiment of the invention, the economic factors and the recovery ratio of condensate oil are comprehensively considered, the drilling type and the drilling position of the target reservoir body are determined according to the type of the target reservoir body, the content of the condensate oil and the number of the holes, prompt information is respectively given, the well arrangement mode of the condensate gas reservoir is improved, and the recovery ratio of the condensate oil of the condensate gas reservoir is improved under the condition of ensuring the economic benefit.
The well arrangement mode determination device for condensate gas reservoirs in the embodiments shown in fig. 5 and 6 can be used for implementing the technical scheme in the above method embodiments, and the implementation principle and technical effect are similar, and the detailed description of this embodiment is omitted.
It should be understood that the division of the modules of the well placement determination apparatus for condensate reservoirs shown in fig. 5 and 6 is merely a logical division, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling by the processing element in software, and part of the modules can be realized in the form of hardware. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
Fig. 7 is a schematic diagram of a hardware configuration of a well placement determination apparatus for a condensate gas reservoir according to an embodiment of the present invention. As shown in fig. 7, the present embodiment provides a well placement determination apparatus 600 for a condensate gas reservoir, including: at least one memory 620, a processor 610, and computer programs; wherein the computer program is stored in the memory 620 and configured to be executed by the processor 610 for performing any of the above-described methods of determining a pattern of a condensate gas reservoir.
It will be appreciated by those skilled in the art that fig. 7 is merely an example of a well placement determination device for a condensate reservoir and does not constitute a limitation on the well placement determination device for a condensate reservoir, which may include more or fewer components than shown, or some components in combination, or different components, for example, which may also include input and output devices, network access devices, buses, etc.
In the embodiment shown in fig. 7, it should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise high speed RAM memory and may also include non-volatile storage NVM, such as at least one disk memory.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
Furthermore, an embodiment of the present invention provides a readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method described in any one of the above implementation manners.
The readable storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. Readable storage media can be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary readable storage medium is coupled to the processor such the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the readable storage medium may also reside as discrete components in the apparatus.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for determining a pattern of a well for a condensate gas reservoir, comprising:
receiving seismic echo data of a condensate gas reservoir sent by a detector, and performing inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir body in the condensate gas reservoir;
determining a type of the target reservoir from the seismic reflection signatures; wherein the types comprise a crack hole type and a cave type;
when the type of the target reservoir body is a crack hole type, outputting first prompt information, wherein the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well;
when the type of the target reservoir body is a cave type, acquiring first pressure data of the target reservoir body, determining the first condensate content corresponding to the first pressure data according to the corresponding relation between the condensate content and the pressure data of a block where the target reservoir body is located, and outputting second prompt information when the first condensate content exceeds a preset threshold, wherein the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft;
after the inversion processing is performed on the seismic echo data to obtain the seismic reflection characteristics of the target reservoir in the condensate gas reservoir, the method further comprises:
determining a first location and a second location on the target reservoir based on the seismic reflection characteristics, wherein the first location is a location on the target reservoir that is closest to the earth's surface and the second location is a location on the target reservoir that is farthest from the earth's surface;
the first hint information is further for indicating that the encounter location of the target reservoir is between a third location and a fourth location, wherein the third location is a location on the target reservoir where the distance between the target reservoir and the second location is one-third of the distance between the first location and the second location, and the fourth location is a location on the target reservoir where the distance between the target reservoir and the first location is one-third of the distance between the first location and the second location;
the second cue information is further for indicating that a distance between a drilling location of the target reservoir and the second location is less than one third of a distance between the first location and the second location;
after said determining a first condensate content corresponding to said first pressure data, said method further comprises:
when the content of the first condensate oil is lower than the preset threshold value, determining the number of caves contained in the target reservoir body according to the seismic reflection characteristics of the target reservoir body;
if the number of the holes is one, outputting third prompt information; wherein the third prompt is for indicating that the drilling type of the target reservoir is a vertical well;
if the number of the holes is multiple, outputting fourth prompt information; wherein the fourth cue information is for indicating that the drilling type of the target reservoir is deviated and that the distance between the drilling location of the target reservoir and the first location is less than one third of the distance between the first location and the second location.
2. The method of claim 1, wherein said determining a type of said target reservoir from said seismic reflection signatures comprises:
judging whether the seismic reflection features contain beaded reflection features or not;
if so, determining that the target reservoir is a cavernous reservoir, and if not, determining that the target reservoir is a fractured cavernous reservoir.
3. The method of claim 1, wherein prior to said determining the type of the target reservoir from the seismic reflection signatures, the method further comprises:
receiving condensate content and pressure data of a plurality of detection wells sent by a fluid high-temperature high-pressure measuring instrument; wherein the plurality of sonde wells are each located within the block in which the target reservoir is located;
and performing linear regression fitting processing on the condensate content and the pressure data of the plurality of detection wells to obtain the corresponding relation between the condensate content and the pressure data of the block where the target reservoir body is located.
4. A well placement determination device for a condensate gas reservoir, comprising:
the acquisition module is used for receiving seismic echo data of the condensate gas reservoir sent by the detector and carrying out inversion processing on the seismic echo data to obtain seismic reflection characteristics of a target reservoir in the condensate gas reservoir;
a type determination module for determining a type of the target reservoir from the seismic reflection signatures; wherein the types comprise a crack hole type and a cave type;
the first output module is used for outputting first prompt information when the type of the target reservoir body is a fracture-hole type, and the first prompt information is used for indicating that the drilling type of the target reservoir body is a horizontal well;
the second output module is used for acquiring first pressure data of the target reservoir body when the type of the target reservoir body is a cave type, determining the content of the first condensate corresponding to the first pressure data according to the corresponding relation between the condensate content and the pressure data of a block where the target reservoir body is located, and outputting second prompt information when the content of the first condensate exceeds a preset threshold value, wherein the second prompt information is used for indicating that the drilling type of the target reservoir body is an inclined shaft;
a location determination module for determining a first location and a second location on the target reservoir based on the seismic reflection characteristics, wherein the first location is a location on the target reservoir that is closest to a surface and the second location is a location on the target reservoir that is farthest from the surface;
the first hint information is further for indicating that the encounter location of the target reservoir is between a third location and a fourth location, wherein the third location is a location on the target reservoir where the distance between the target reservoir and the second location is one-third of the distance between the first location and the second location, and the fourth location is a location on the target reservoir where the distance between the target reservoir and the first location is one-third of the distance between the first location and the second location;
the second cue information is further for indicating that a distance between a drilling location of the target reservoir and the second location is less than one third of a distance between the first location and the second location;
the third output module is used for determining the number of the caverns contained in the target reservoir body according to the seismic reflection characteristics of the target reservoir body when the content of the first condensate oil is lower than the preset threshold value; if the number of the holes is one, outputting third prompt information; wherein the third prompt is to indicate that the drilling type of the target reservoir is a vertical well; if the number of the holes is multiple, outputting fourth prompt information; wherein the fourth cue information is for indicating that the drilling type of the target reservoir is deviated and that the distance between the drilling location of the target reservoir and the first location is less than one third of the distance between the first location and the second location.
5. A well placement determination device for a condensate gas reservoir is characterized by comprising a memory and a processor;
a memory: for storing the processor-executable instructions;
wherein the processor is configured to: executing the executable instructions to implement the method of any of claims 1 to 3.
6. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, are configured to implement the method of any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910863478.XA CN112483064B (en) | 2019-09-12 | 2019-09-12 | Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910863478.XA CN112483064B (en) | 2019-09-12 | 2019-09-12 | Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112483064A CN112483064A (en) | 2021-03-12 |
| CN112483064B true CN112483064B (en) | 2023-04-07 |
Family
ID=74920373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910863478.XA Active CN112483064B (en) | 2019-09-12 | 2019-09-12 | Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112483064B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818620A (en) * | 2010-04-26 | 2010-09-01 | 徐萍 | Mining method for maximum reservoir contact well and maximum reservoir contact well structure |
| CN104912537A (en) * | 2015-05-13 | 2015-09-16 | 中国海洋石油总公司 | Well network deployment method of giant thick fractured and buried hill reservoir |
| CN105239990A (en) * | 2015-10-30 | 2016-01-13 | 中国石油天然气股份有限公司 | Well spacing method for lateral displacement horizontal well of ultra-low permeability tight oil reservoir simulation local well |
| CN108343424A (en) * | 2017-12-19 | 2018-07-31 | 中国石油天然气股份有限公司 | Method and device for determining drilling position |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207619A (en) * | 1975-02-24 | 1980-06-10 | Alf Klaveness | Seismic well logging system and method |
| US7090013B2 (en) * | 2001-10-24 | 2006-08-15 | Shell Oil Company | In situ thermal processing of a hydrocarbon containing formation to produce heated fluids |
| CN102373923B (en) * | 2010-08-20 | 2013-03-13 | 中国石油天然气股份有限公司 | Reservoir stratum identification method |
| US20130062070A1 (en) * | 2011-09-12 | 2013-03-14 | Grant Hocking | System and Method of Liquefying a Heavy Oil Formation for Enhanced Hydrocarbon Production |
| CN102636812B (en) * | 2012-04-18 | 2013-07-10 | 中国石油天然气股份有限公司 | Method for obtaining storage space volume of carbonate reservoir |
| WO2016139498A2 (en) * | 2012-11-05 | 2016-09-09 | Osum Oil Sands Corp. | Method for operating a carbonate reservoir |
| US20140136112A1 (en) * | 2012-11-09 | 2014-05-15 | Saudi Arabian Oil Company | Predicting performance of gas condensate reservoirs |
| CN102967883B (en) * | 2012-11-20 | 2016-02-10 | 中国石油集团川庆钻探工程有限公司地球物理勘探公司 | By the method for shale gas prestack elastic parameter inversion prediction rock fragility probability |
| US9134444B2 (en) * | 2012-11-27 | 2015-09-15 | Chevron U.S.A., Inc. | System and method for deducing cavern properties |
| WO2015168417A1 (en) * | 2014-04-30 | 2015-11-05 | Schlumberger Technology Corporation | Geological modeling workflow |
| US20160047924A1 (en) * | 2014-08-14 | 2016-02-18 | Christine Krohn | Determination of Subsurface Properties in the Vicinity of a Well by Full Wavefield Inversion |
| CN104632205B (en) * | 2015-01-23 | 2021-10-12 | 江杰 | Fracture-cavity carbonate reservoir storage type distinguishing method |
| EP3256885B1 (en) * | 2015-02-13 | 2020-12-30 | Services Petroliers Schlumberger | Diagenetic and depositional rock analysis |
| US10007015B2 (en) * | 2015-02-23 | 2018-06-26 | Nexen Energy Ulc | Methods, systems and devices for predicting reservoir properties |
| US20160349389A1 (en) * | 2015-05-29 | 2016-12-01 | Cgg Services Sa | Method for developing a geomechanical model based on seismic data, well logs and sem analysis of horizontal and vertical drill cuttings |
| CN105003235A (en) * | 2015-07-29 | 2015-10-28 | 塔里木油田分公司勘探开发研究院 | Method for improving condensate oil recovery ratio through injecting water into fracture-cave type carbonate condensate gas reservoir |
| CN105678082B (en) * | 2016-01-12 | 2020-06-02 | 西南石油大学 | Double-pressure drop method for identifying type of oil-gas well acid fracturing communication reservoir |
| CN105735978B (en) * | 2016-02-19 | 2018-12-04 | 中国石油集团川庆钻探工程有限公司 | Well spacing method for carbonate interlayer karst reservoir |
| CN106640027B (en) * | 2016-09-28 | 2019-05-07 | 中国石油化工股份有限公司 | The construction method of fracture-pore reservoir underground river type karst Reservoir Body space structure well pattern |
| CN107367757A (en) * | 2017-07-20 | 2017-11-21 | 中国石油化工股份有限公司 | The depicting method of the disconnected solution of carbonate rock |
| US10928536B2 (en) * | 2017-12-07 | 2021-02-23 | Saudi Arabian Oil Company | Mapping chemostratigraphic signatures of a reservoir with rock physics and seismic inversion |
| CN109959965A (en) * | 2017-12-25 | 2019-07-02 | 中国石油天然气股份有限公司 | Method and device for acquiring internal structure of carbonate rock fracture-cave body |
| CN109869143B (en) * | 2019-01-18 | 2023-01-24 | 潜能恒信能源技术股份有限公司 | Deployment method of high-yield geothermal well and efficient circulating system |
-
2019
- 2019-09-12 CN CN201910863478.XA patent/CN112483064B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818620A (en) * | 2010-04-26 | 2010-09-01 | 徐萍 | Mining method for maximum reservoir contact well and maximum reservoir contact well structure |
| CN104912537A (en) * | 2015-05-13 | 2015-09-16 | 中国海洋石油总公司 | Well network deployment method of giant thick fractured and buried hill reservoir |
| CN105239990A (en) * | 2015-10-30 | 2016-01-13 | 中国石油天然气股份有限公司 | Well spacing method for lateral displacement horizontal well of ultra-low permeability tight oil reservoir simulation local well |
| CN108343424A (en) * | 2017-12-19 | 2018-07-31 | 中国石油天然气股份有限公司 | Method and device for determining drilling position |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112483064A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104329079B (en) | Method and system for recognizing gas logging oil and gas reservoir | |
| CN105735978A (en) | Well spacing method for carbonate interlayer karst reservoir | |
| CN108019204B (en) | Neutron-gamma gas layer identification method based on physical property and formation water mineralization correction | |
| CN107832574B (en) | Horizontal well water flooded layer interpretation method based on logging while drilling | |
| CN108194053A (en) | A kind of determining method and device of open-hole horizontal well matrix acidifying acid solution dosage | |
| CN112483064B (en) | Method, device and equipment for determining well arrangement mode of condensate gas reservoir and storage medium | |
| CN109522579B (en) | Method for predicting fracture pressure of horizontal well fracturing construction | |
| CN116556934A (en) | Method, device and equipment for developing high-quality reserve area of water-containing tight gas reservoir | |
| CN112949025B (en) | Staged fracturing design method, device and medium for horizontal well | |
| CN112394416A (en) | Heterogeneous fracture control reservoir prediction method and device | |
| Moradi et al. | Learning from Behavioral Frac Maps: A Montney Case Study in Integration of Modern Microseismic and Production Data Analyses | |
| CN113622904A (en) | Method for identifying logging fluid type by logging chloride ion content through element capture spectrum | |
| CN106504107A (en) | Method and device for determining oil layer perforation position | |
| CN112267870B (en) | Method and device for detecting corrosion probability of well pipe column | |
| CN113495295B (en) | Weak-connectivity fracture-cavity reservoir identification method, device, equipment and storage medium | |
| CN111260100B (en) | Reservoir production capacity prediction method and device | |
| CN113030430B (en) | Method for measuring and calculating concentration of free coal bed gas in reservoir of mining stable area of coal mine | |
| CN116556900A (en) | Development method, device and equipment of water-containing compact sandstone gas reservoir | |
| CN113605879B (en) | Method and device for calculating original formation pressure of coal reservoir | |
| US11574083B2 (en) | Methods and systems for selecting inflow control device design simulations based on case selection factor determinations | |
| Zolotukhin et al. | Selection of the Best Development Scenario for the Thin Oil Rim with Reservoir Pressure Maintenance System Involving Gas Injection into the Gas Cap. Case Study: West Masssoyakha PK 1-3 Horizon. | |
| CN112214973A (en) | Oil-gas reservoir identification method and equipment | |
| CN118835967A (en) | Method, device, equipment and medium for predicting accumulated production gas-oil ratio of water-drive reservoir | |
| CN117907569A (en) | Method for evaluating escape rates of shale gas reservoirs with different stratum dip angles | |
| CN117967297A (en) | Method for judging fault position of Orthogramine karst stratum |
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 |